View source for 1978 Pacific hurricane season

{{Short description|none}} <!-- "none" is a legitimate description when the title is already adequate; see [[WP:SDNONE]] -->
{{Infobox tropical cyclone season
 | Basin                    = EPac
 | Year                     = 1978
 | Track                    = 1978 Pacific hurricane season summary map.png
 | First storm formed       = May 30, 1978
 | Last storm dissipated    = October 21, 1978
 | Strongest storm name     = [[Hurricane Fico|Fico]], Hector, and [[Hurricane Norman (1978)|Norman]]
 | Strongest storm pressure = 955
 | Strongest storm winds    = 120
 | Average wind speed       = 1
 | Total storms             = 19
 | Total hurricanes         = 14
 | Total intense            = 7
 | Fatalities               = 8
 | Damagespre               = >
 | Damages                  = 300
 | five seasons             = [[1976 Pacific hurricane season|1976]], [[1977 Pacific hurricane season|1977]], '''1978''', [[1979 Pacific hurricane season|1979]], [[1980 Pacific hurricane season|1980]]
 | Atlantic season          = 1978 Atlantic hurricane season
 | West Pacific season      = 1978 Pacific typhoon season
 | North Indian season      = 1978 North Indian Ocean cyclone season
}}
The '''1978 Pacific hurricane season''' was the first Pacific hurricane season to use both masculine and feminine names for [[tropical cyclone]]s. It also began the modern practice of utilizing naming lists every six years. Despite lacking an [[El Niño]], a common driver of enhanced activity in the East and Central Pacific basins,<ref>{{cite report|author=[[Charles H. Fletcher III]]|author2=Eric E. Grossman|author3=Bruce M. Richmond|author4=Ann E. Gibbs|title=Atlas of Natural Hazards in the Hawaiian Coastal Zone|url=https://pubs.usgs.gov/imap/i2761/sections/1_Intro.pdf|publisher=[[United States Geological Survey]]|date=January 9, 2002|accessdate=January 4, 2022|page=23}}</ref> the 1978 season was active. It featured 19 named storms, 14 hurricanes, and 7 major hurricanes, the latter of which are Category&nbsp;3 or stronger cyclones on the [[Saffir–Simpson scale]]. Within the confines of the Central Pacific basin, located between the [[International Date Line]] and 140°W, 13 tropical cyclones or their remnants were observed by forecasters at the [[Central Pacific Hurricane Center]], a record number of occurrences at the time.<ref>{{cite journal|author=Samuel L. Shaw|title=The Pacific Cyclone Season|url=https://www.tandfonline.com/doi/abs/10.1080/00431672.1979.9930091|journal=[[Weatherwise]]|year=1979|publisher=Taylor & Francis|volume=32|issue=4|pages=166–169|doi=10.1080/00431672.1979.9930091|accessdate=January 5, 2022}}</ref> Seasonal activity began on May&nbsp;30 and ended on October&nbsp;21, within the limits of a traditional hurricane season which begins on May&nbsp;15 in the East Pacific and June&nbsp;1 in the Central Pacific. The season ends on November&nbsp;30 in both basins. These dates conventionally delimit the period during each year when most tropical cyclones form.<ref>{{cite web|title=Hurricanes: Frequently Asked Questions|url=https://www.aoml.noaa.gov/hrd-faq/|work=[[Atlantic Oceanographic and Meteorological Laboratory]]|publisher=[[National Oceanic and Atmospheric Administration]]|accessdate=January 5, 2022}}</ref>

The first system of the season, Aletta, made landfall on the Mexico coastline on May&nbsp;31. Hurricanes Carlotta, Daniel, and Iva tracked into the Central Pacific as dissipating cyclones, where they produced a few inches of rainfall across the [[Hawaiian Islands]]. More substantive impacts came from [[Hurricane Fico]], the longest-lived hurricane and the longest-tracked hurricane on record in the Central Pacific at the time. Large waves and rough seas caused severe damage to beachfront homes and forced the rescuing of stranded boaters offshore. Strong winds damaged trees and caused power outages. Damage across Hawaii totaled $200,000. In early September, the remnants of [[Hurricane Norman (1978)|Hurricane Norman]] produced accumulating rain and snow across California, resulting in severe damage to its crops that totaled in excess of $300 million, in addition to killing eight people. In mid-October, Susan rapidly developed into a Category&nbsp;4 hurricane over the Central Pacific, one of the strongest hurricanes on record there at the time. It persisted until October&nbsp;21, marking an end to seasonal activity.

==Systems==
{{center|
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  from:17/06/1978 till:20/06/1978 color:TS text:"Bud (TS)"
  from:17/06/1978 till:25/06/1978 color:C4 text:"Carlotta (C4)"
  from:26/06/1978 till:03/07/1978 color:C3 text:"Daniel (C3)"
  from:30/06/1978 till:02/07/1978 color:TD text:"Five (TD)"
  from:06/07/1978 till:10/07/1978 color:TS text:"Emilia (TS)"
  from:09/07/1978 till:28/07/1978 color:C4 text:"[[Hurricane Fico|Fico (C4)]]"
  from:13/07/1978 till:20/07/1978 color:C3 text:"Gilma (C3)"
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  from:22/07/1978 till:29/07/1978 color:C4 text:"Hector (C4)"
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  from:11/08/1978 till:15/08/1978 color:C1 text:"Iva (C1)"
  from:18/08/1978 till:30/08/1978 color:C2 text:"John (C2)"
  from:18/08/1978 till:28/08/1978 color:C2 text:"Kristy (C2)"
  from:19/08/1978 till:21/08/1978 color:TS text:"Lane (TS)"
  from:23/08/1978 till:01/09/1978 color:C1 text:"Miriam (C1)"
  from:30/08/1978 till:09/09/1978 color:C4 text:"[[Hurricane Norman (1978)|Norman (C4)]]"
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  from:02/10/1978 till:07/10/1978 color:C1 text:"Rosa (C1)"
  from:18/10/1978 till:24/10/1978 color:C4 text:"Susan (C4)"
  from:18/10/1978 till:20/10/1978 color:TS text:"Sergio (TS)"

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  from:01/05/1978 till:01/06/1978 text:May
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  from:01/07/1978 till:01/08/1978 text:July
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=== Hurricane Aletta ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = Aletta May 31 1978 0000Z.png
 | Track         = Aletta 1978 track.png
 | Formed        = May 30
 | Dissipated    = May 31
 | 1-min winds   = 65
}}

A small tropical disturbance, originating within the [[Intertropical Convergence Zone]] (ITCZ) across the [[Caribbean Sea]],<ref name="tropicalsystems">{{cite report|url=http://journals.ametsoc.org/doi/pdf/10.1175/1520-0493%281979%29107%3C1035%3AATSO%3E2.0.CO%3B2|title=Atlantic Tropical Systems of 1978|author=Neil L. Frank and Gilbert B. Clark|date=August 1979|work=National Hurricane Center|volume=107 |issue=8 |pages=1035–1041 |publisher=National Oceanic and Atmospheric Administration|access-date=June 3, 2014|location=Miami, Florida|doi=10.1175/1520-0493(1979)107<1035:ATSO>2.0.CO;2|doi-access=free}}</ref> developed in the [[Gulf of Tehuantepec]] on May 27. The system increased in both size and organization over the coming days,<ref name=MWR>{{cite journal|journal=Monthly Weather Review|author=Emil B. Gunther|date=July 1979|title=Eastern North Pacific Tropical Cyclones of 1978|volume=107|issue=7|page=911|publisher=American Meteorological Society|doi=10.1175/1520-0493(1979)107<0911:ENPTCO>2.0.CO;2|bibcode = 1979MWRv..107..911G |doi-access=free}}</ref> and it was upgraded to Tropical Storm Aletta around 12:00&nbsp;UTC on May&nbsp;30.{{EPAC hurricane best track}} Tracking northwest, the system continued to intensify over warm ocean waters, and an [[Eye (cyclone)|eye]] became evident on [[weather satellite]]. This development coincided with a ship report of {{convert|75|mph|km/h|abbr=on}} winds,<ref name="MWR" /> and Aletta strengthened into the season's first hurricane by 00:00&nbsp;UTC on May&nbsp;31.{{EPAC hurricane best track}} The system subsequently weakened as it curved north-northwest ahead of an [[Trough (meteorology)|upper-level trough]] over northwestern Mexico, and it made landfall about {{convert|50|mi|km|abbr=on}} west of [[Zihuatanejo]], [[Guerrero]], at 17:30&nbsp;UTC on May&nbsp;31. Aletta transitioned to an [[extratropical cyclone]] about six hours before it degenerated to a disturbance over southwestern Mexico on June&nbsp;1.{{EPAC hurricane best track}}
{{clear}}

=== Tropical Storm Bud ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = Bud June 18 1978 1800Z.png
 | Track         = Bud 1978 track.png
 | Formed        = June 17
 | Dissipated    = June 20
 | 1-min winds   = 50
}}
The season's second tropical cyclone began as a disturbance spawned by an African [[tropical wave]] southwest of the Mexico coastline on June&nbsp;15.<ref name="tropicalsystems" /> It moved generally westward over very warm waters, and observations from satellite imagery and ships outlined the formation of a tropical depression by 00:00&nbsp;UTC on June&nbsp;17.<ref name="MWR" /> Six hours later, the depression intensified into Tropical Storm Bud.{{EPAC hurricane best track}} Continued ship observations relayed Bud's intensification to a {{convert|60|mph|km/h|abbr=on}} cyclone on June&nbsp;18, but the storm weakened thereafter as it moved west-northwest under the influence of a ridge,<ref name="MWR" /> and it ultimately dissipated within the ITCZ after 06:00&nbsp;UTC on June&nbsp;26 while located over the open Central Pacific.{{EPAC hurricane best track}}<ref name="CPHCseasonal">{{cite report|title=Tropical Cyclones 1978|url=https://www.nhc.noaa.gov/data/tcr/CP1978_Seasonal_TCR.pdf|publisher=[[National Hurricane Center]]|work=[[Central Pacific Hurricane Center]]|accessdate=January 5, 2022}}</ref>
{{clear}}

=== Hurricane Carlotta ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = Carlotta 1978-06-21 2000Z.jpg
 | Track         = Carlotta 1978 track.png
 | Formed        = June 17
 | Dissipated    = June 25
 | 1-min winds   = 115
}}
To the east of Tropical Storm Bud, a new tropical disturbance – originating as a Caribbean ITCZ disturbance – was identified south of [[Acapulco]], [[Guerrero]], on June&nbsp;15.<ref name="tropicalsystems" /> The comparatively small system became a tropical depression around 06:00&nbsp;UTC on June&nbsp;17 and Tropical Storm Carlotta eighteen hours later while it moved over warm ocean waters.<ref name="MWR" />{{EPAC hurricane best track}} After formation, Carlotta embarked toward the west-southwest, steered by the same [[Ridge (meteorology)|ridge]] that directed Bud. The storm displayed a small eye in satellite imagery early on June&nbsp;19,<ref name="MWR" /> and it was upgraded to a hurricane by 06:00&nbsp;UTC that day.{{EPAC hurricane best track}} Carlotta continued to intensify as it curved west-northwest,<ref name="MWR" /> becoming the season's first major hurricane around 06:00&nbsp;UTC on June&nbsp;20 and ultimately peaking as a Category&nbsp;4 hurricane with winds of {{convert|130|mph|km/h|abbr=on}} by 12:00&nbsp;UTC on June&nbsp;21.{{EPAC hurricane best track}} Carlotta maintained its strength for a time before it encountered cooler waters and dry air on June&nbsp;23.<ref name="MWR" /> The cyclone steadily lost strength and degenerated to a disturbance after 18:00&nbsp;UTC on June&nbsp;25 but remained a traceable entity as it moved across the Central Pacific. The disturbance moved across the Hawaiian island chain on June&nbsp;28 and continued west, ultimately merging with a [[cold-core low]] after crossing the [[International Date Line]]. It was last identified over the West Pacific near [[Minami-Tori-shima]] on July&nbsp;10.<ref name="CPHCseasonal" />

Although wind effects across Hawaii were minimal, the remnants of Carlotta delivered heavy rainfall across much of the Hawaiian island chain. Accumulations exceeded {{convert|6|in|mm|abbr=on}}, particularly on Oahu.<ref name="CPHCseasonal" />
{{clear}}

=== Hurricane Daniel ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = Daniel 1978-06-30 1800Z.jpg
 | Track         = Daniel 1978 track.png
 | Formed        = June 26
 | Dissipated    = July 3
 | 1-min winds   = 100
}}
A tropical disturbance, first identified in association with a tropical wave west of [[Nicaragua]] on June&nbsp;24,<ref name="tropicalsystems" /><ref name="MWR" /> moved west-northwest and organized into a tropical depression by 18:00&nbsp;UTC on June&nbsp;26.{{EPAC hurricane best track}} It intensified into Tropical Storm Daniel within twelve hours but weakened to a tropical depression again while tracking over {{convert|26|C|F|abbr=on}} ocean waters. After moving into warmer waters again,<ref name="MWR" /> Daniel regained tropical storm strength before 18:00&nbsp;UTC on June&nbsp;28 and intensified into a hurricane 24&nbsp;hours later. Around 12:00&nbsp;UTC on June&nbsp;30, the hurricane attained major hurricane strength with winds of {{convert|115|mph|km/h|abbr=on}}.{{EPAC hurricane best track}} The cyclone tracked west and then west-southwest over steadily cooler waters,<ref name="MWR" /> which resulted in its weakening and degeneration to a disturbance after 18:00&nbsp;UTC on July&nbsp;3.{{EPAC hurricane best track}} The remnant system moved across the Central Pacific and through the Hawaiian Islands, where it lost definition on July&nbsp;11.<ref name="CPHCseasonal" />

As the circulation of Daniel moved over the Hawaiian Islands, it produced rainfall totals of {{convert|5|–|7|in|mm|abbr=on}} across the Big Island and [[Maui]]. Accumulation over windward sections of opposing islands was more isolated and generally confined under {{convert|2|in|mm|abbr=on}}.<ref name="CPHCseasonal" />
{{clear}}

=== Tropical Storm Emilia ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = Emilialatejuly81978.gif
 | Track         = Emilia 1978 track.png
 | Formed        = July 6
 | Dissipated    = July 10
 | 1-min winds   = 55
}}
An area of disturbed weather and associated tropical wave was observed east of Acapulco on July&nbsp;3.<ref name="tropicalsystems" /> It moved southwest during the early stages of its existence before curving more toward the northwest. Satellite imagery identified the existence of a tropical depression by 18:00&nbsp;UTC on July&nbsp;6,<ref name="MWR" /> and that depression quickly intensified into Tropical Storm Emilia six hours later. The newly named storm gathered strength over subsequent days, attaining peak winds of {{convert|65|mph|km/h|abbr=on}} around 06:00&nbsp;UTC on July&nbsp;9.{{EPAC hurricane best track}} Beyond that time, Emilia crossed into cooler waters and began to rapidly weaken,<ref name="MWR" /> dissipating after 18:00&nbsp;UTC on July&nbsp;10.{{EPAC hurricane best track}}
{{clear}}

=== Hurricane Fico ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = Fico 1978-07-14 2100Z.jpg
 | Track         = Fico 1978 track.png
 | Formed        = July 9
 | Dissipated    = July 28
 | 1-min winds   = 120
 | Prepressure   = ≤
 | Pressure      = 955
}}
{{Main|Hurricane Fico}}
Fico, similar to the season's preceding cyclones, began as an area of disturbed weather in association with a tropical wave east of Acapulco.<ref name="MWR" /> It moved west-northwest over warm waters, becoming a tropical depression around 00:00&nbsp;UTC on July&nbsp;9 and intensifying into a tropical storm 24&nbsp;hours later. Fico continued to rapidly gain strength and became a hurricane around 18:00&nbsp;UTC on July&nbsp;10.{{EPAC hurricane best track}} As it did so, the hurricane was characterized with a well-defined eye and [[Outflow (meteorology)|outflow]] radiating far away from the center.<ref name="MWR" /> Fico intensified into a major hurricane by 12:00&nbsp;UTC on July&nbsp;11 and later peaked as a Category&nbsp;4 hurricane with winds of {{convert|140|mph|km/h|abbr=on}} a day later.{{EPAC hurricane best track}} On July&nbsp;13–14, the cyclone passed over a pocket of {{convert|26|C|F|abbr=on}} ocean waters, which caused it to rapidly weaken to Category&nbsp;1 intensity. However, underlying waters soon warmed again,<ref name="MWR" /> allowing Fico to regain Category&nbsp;4 strength. Fico fluctuated in intensity over many days as it crossed into the Central Pacific basin and passed south of Hawaii.{{EPAC hurricane best track}} After July&nbsp;20, the hurricane curved northwest ahead of an upper-level trough, bringing the storm over cooler waters again.<ref name="MWR" /> The system rapidly weakened, finally dissipating after 18:00&nbsp;UTC on July&nbsp;28 after having traveled {{convert|6645|mi|km|abbr=on|round=5}}.{{EPAC hurricane best track}}

At the time, Fico was the longest-duration hurricane and furthest-traveled hurricane on record in the Central Pacific. It tracked further than any West Pacific typhoon by that point, and only one [[typhoon]] – [[Typhoon Rita (1972)|Rita in 1972]] – persisted at that intensity longer than Fico. In the Atlantic, only hurricanes Ginger, Carrie, and Faith exceeded Fico with regard to distance traveled or time spent as a hurricane.<ref>{{cite report|author=Donald R. Cochran|title=Hurricane Fico (1978) - A Record Setter|url=http://nwafiles.nwas.org/digest/papers/1980/Vol05No2/1980v005no02-Cochran.pdf|publisher=[[National Weather Association]]|accessdate=January 6, 2022}}</ref> Fico produced considerable impacts in Hawaii. Southerly flow in association with a cyclone over the Southern Hemisphere combined with east-northeasterly flow from the hurricane, producing beach road flooding along the southeastern shore of the [[Hawaii (island)|Big Island]] while Fico was still {{convert|500|mi|km|abbr=on}} away. Ocean waves, breaking at {{convert|15|–|20|ft|m|abbr=on}} at the coast and larger values offshore, caused severe damage to beachfront homes and roads. Similar waves were observed along the coasts of [[Oahu]] and [[Kauai]]. A {{convert|43|ft|m|abbr=on}} [[sloop]] became stranded in the cyclone's circulation, forcing a Navy torpedo boat to rescue six people on board. A {{convert|65|ft|m|abbr=on}} tugboat was run aground on a reef along the southern shore of Kauai. By July&nbsp;21, a strong trade wind gradient exacerbated by the presence of Fico caused widespread winds over {{convert|60|mph|km/h|abbr=on}}, which resulted in downed trees and power outages. Overall damage in Hawaii totaled $200,000.<ref>{{cite book|year=2000|title=Geography and Environment|access-date=January 6, 2022|url=https://files.hawaii.gov/dbedt/economic/databook/db2000/sec05.pdf|publisher=Hawaii Department of Business, Economic Development & Tourism}}</ref> A week later, the remnants of the storm became intertwined with a strong [[Weather front|frontal system]], producing heavy rain and winds up to {{convert|45|mph|km/h|abbr=on}} to the [[Aleutian Islands]].<ref name="CPHCseasonal" />
{{clear}}

=== Hurricane Gilma ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = Gilmajuly171978.gif
 | Track         = Gilma 1978 track.png
 | Formed        = July 13
 | Dissipated    = July 20
 | 1-min winds   = 100
}}
An area of disturbed weather spawned by a tropical wave developed southeast of Acapulco on July&nbsp;11 and rapidly grew in size.<ref name="MWR" /> It developed into a tropical depression around 00:00&nbsp;UTC on July&nbsp;13 and further into Tropical Storm Gilma six hours later while curving from west-southwest to west-northwest.<ref name="MWR" />{{EPAC hurricane best track}} Further organization brought Gilma to hurricane strength around 18:00&nbsp;UTC on July&nbsp;15 and major hurricane intensity by 06:00&nbsp;UTC the next day.{{EPAC hurricane best track}} By this point, satellite imagery revealed a system with a cloud shield about {{convert|920|mi|km|abbr=on}} in diameter and an eye about {{convert|15|mi|km|abbr=on|round=5}} wide. Immediately after peak, the effects of cold waters and dry air began to affect Gilma, and the storm weakened rapidly.<ref name="MWR" /> It degenerated to a disturbance after 00:00&nbsp;UTC on July&nbsp;20 while located well west of [[Baja California]].{{EPAC hurricane best track}} Its well-defined circulation tracked north of Hawaii before dissipating on July&nbsp;27.<ref name="CPHCseasonal" />
{{clear}}

=== Hurricane Hector ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = Hectorjuly241978.gif
 | Track         = Hector 1978 track.png
 | Formed        = July 22
 | Dissipated    = July 29
 | 1-min winds   = 120
 | Pressure      = 955
}}
The third in a series of major hurricanes began as a tropical disturbance and accompanying tropical wave south of [[Guatemala]] on July&nbsp;19.<ref name="MWR" /> The system moved west-northwest, becoming a tropical depression around 00:00&nbsp;UTC on July&nbsp;22 and Tropical Storm Hector six hours later. Further strengthening brought the system to hurricane strength by 12:00&nbsp;UTC on July&nbsp;23,{{EPAC hurricane best track}} after which time a well-defined eye developed on satellite imagery.<ref name="MWR" /> Hector became a major hurricane around 00:00&nbsp;UTC on July&nbsp;25 before rapidly strengthening to a Category&nbsp;4 storm with winds of {{convert|140|mph|km/h|abbr=on}} six hours later.{{EPAC hurricane best track}} The cyclone continued west-northwest into a sharply more hostile environment of cold waters and dry air,<ref name="MWR" /> causing weakening that resulted in Hector's degeneration to a disturbance after 18:00&nbsp;UTC on July&nbsp;29.{{EPAC hurricane best track}} The remnants of the storm drifted westward and dissipated northeast of Hawaii on August&nbsp;2.<ref name="CPHCseasonal" />
{{clear}}

=== Hurricane Iva ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = IvaAugust131978.gif
 | Track         = Iva 1978 track.png
 | Formed        = August 11
 | Dissipated    = August 15
 | 1-min winds   = 65
}}
In early August, the Atlantic's [[1978 Atlantic hurricane season|Tropical Storm Bess]] crossed Mexico. Its remnants emerged into the Eastern Pacific,<ref name="tropicalsystems" /> where they redeveloped into a tropical depression by 06:00&nbsp;UTC on August&nbsp;11.{{EPAC hurricane best track}} Very warm ocean waters facilitated the system's rapid intensification,<ref name="MWR" /> and it strengthened into Tropical Storm Iva six hours after formation before becoming a hurricane around 06:00&nbsp;UTC on August&nbsp;13.{{EPAC hurricane best track}} Iva moved west-northwest over increasingly cool waters,<ref name="MWR" /> and it degenerated to a disturbance after 06:00&nbsp;UTC on August&nbsp;15 to the west of Baja California.{{EPAC hurricane best track}} The remnants tracked into the Central Pacific and dissipated on August&nbsp;21. Rainfall accumulations of {{convert|5|–|6.5|in|mm|abbr=on}} were observed along eastern shores of the Big Island and Maui.<ref name="CPHCseasonal" />
{{clear}}

=== Hurricane John ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = John 1978-08-22 2100Z.jpg
 | Track         = John 1978 track.png
 | Formed        = August 18
 | Dissipated    = August 30
 | 1-min winds   = 90
}}
In mid-August, three tropical disturbances developed in close proximity across the East Pacific basin.<ref name="MWR" /> The middle disturbance slowly organized as it moved west to west-northwest, becoming a tropical depression by 00:00&nbsp;UTC on August&nbsp;18. A day later, it intensified into Tropical Storm John.{{EPAC hurricane best track}} The system tracked over warm water as it became sandwiched between Hurricane Kristy to the east and Tropical Storm Lane to the west.<ref name="MWR" /> John attained hurricane strength over the far western reaches of the East Pacific basin around 12:00&nbsp;UTC on August&nbsp;22, but it weakened to a tropical storm as it crossed into the Central Pacific. Over subsequent days, the cyclone reorganized, reaching its peak as a Category&nbsp;2 hurricane with winds of {{convert|105|mph|km/h|abbr=on}} early on August&nbsp;25. It tracked south of Hawaii while steadily weakening and ultimately dissipated after 06:00&nbsp;UTC on August&nbsp;30.{{EPAC hurricane best track}}<ref name="CPHCseasonal" />
{{clear}}

=== Hurricane Kristy ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = Kristy Aug 21 1978 1800Z.png
 | Track         = Kristy 1978 track.png
 | Formed        = August 18
 | Dissipated    = August 28
 | 1-min winds   = 90
}}
The remnants of the Atlantic's [[Hurricane Cora]] crossed into the eastern Pacific in mid-August,<ref name="tropicalsystems" /> becoming the easternmost of successive disturbances across the East Pacific basin.<ref name="MWR" /> It coalesced into a tropical depression by 18:00&nbsp;UTC on August&nbsp;18 and further into Tropical Storm Kristy within six hours.{{EPAC hurricane best track}} The system acquired an eye on satellite on August&nbsp;19,<ref name="MWR" /> and it was upgraded to a hurricane around 18:00&nbsp;UTC that day. Kristy moved northwest and then west-northwest, further organizing into a Category&nbsp;2 hurricane with winds of {{convert|105|mph|km/h|abbr=on}} on August&nbsp;21.{{EPAC hurricane best track}} Thereafter, the system encountered cooler waters and drier air, which caused it to fall to tropical storm intensity. Environmental conditions improved again by August&nbsp;25 as Kristy regained hurricane strength, but it soon encountered cooler waters again that prompted a more concrete weakening trend.<ref name="MWR" /> The cyclone stair-stepped into the Central Pacific prior to dissipating after 00:00&nbsp;UTC on August&nbsp;28.{{EPAC hurricane best track}}<ref name="CPHCseasonal" />
{{clear}}

=== Tropical Storm Lane ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = Lane 1978-08-20 0900Z.png
 | Track         = Lane 1978 track.png
 | Formed        = August 19
 | Dissipated    = August 24
 | 1-min winds   = 45
}}
The westernmost of successive disturbances over the East Pacific, joined by a tropical wave, was identified on August&nbsp;15.<ref name="MWR" /> It developed into a tropical depression around 00:00&nbsp;UTC on August&nbsp;19 and intensified into Tropical Storm Lane eighteen hours later. The storm moved generally westward and crossed into the Central Pacific as it attained peak winds of {{convert|50|mph|km/h|abbr=on}}.{{EPAC hurricane best track}} Beyond that time, Lane tracked over colder waters and begin to weaken,<ref name="MWR" /> eventually dissipating south of Hawaii after 00:00&nbsp;UTC on August&nbsp;24.{{EPAC hurricane best track}}<ref name="CPHCseasonal" />
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=== Hurricane Miriam ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = Miriam 1978-08-27 1800Z.png
 | Track         = Miriam 1978 track.png
 | Formed        = August 23
 | Dissipated    = September 2
 | 1-min winds   = 80
}}
A small disturbance coincident with a tropical wave was first identified south of Acapulco on August&nbsp;19.<ref name="tropicalsystems" /><ref name="MWR" /> The system moved west and coalesced into a tropical depression around 18:00&nbsp;UTC on August&nbsp;23.{{EPAC hurricane best track}} The depression failed to intensify over subsequent days, and in fact, it was operationally downgraded back to a disturbance on August&nbsp;26.<ref name="MWR" /> In the official database, the cyclone maintained its status and eventually intensified into Tropical Storm Miriam around 00:00&nbsp;UTC on August&nbsp;27.{{EPAC hurricane best track}} Miriam turned west-southwest and entered the Central Pacific,<ref name="MWR" /> where it intensified into a hurricane at 12:00&nbsp;UTC on August&nbsp;28 and reached peak winds of {{convert|90|mph|km/h|abbr=on}} twelve hours later.{{EPAC hurricane best track}} Miriam then began to steadily weaken as it passed south of Hawaii,<ref name="MWR" /> and the cyclone dissipated after 00:00&nbsp;UTC on September&nbsp;2.{{EPAC hurricane best track}}
{{clear}}

=== Hurricane Norman ===
{{Main|Hurricane Norman (1978)}}
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = Norman 1978-09-02 1800Z.png
 | Track         = Norman 1978 track.png
 | Formed        = August 30
 | Dissipated    = September 7
 | 1-min winds   = 120
 | Pressure      = 955
}}
On August&nbsp;29, a tropical wave and attendant disturbance were located southwest of Acapulco.<ref name="tropicalsystems" /><ref name="MWR" /> The system organized into a tropical depression by 18:00&nbsp;UTC on August&nbsp;30, and it became Tropical Storm Norman six hours later. Norman moved west-northwest while gaining strength,{{EPAC hurricane best track}} intensifying into a hurricane around 06:00&nbsp;UTC on September&nbsp;1 and developing a small eye shortly thereafter. The hurricane rapidly intensified over warm waters,<ref name="MWR" /> catapulting to Category&nbsp;4 intensity by 06:00&nbsp;UTC on September&nbsp;2. Norman peaked with winds of {{convert|140|mph|km/h|abbr=on}} twelve hours later, equaling Fico and Hector as the strongest storm of the 1978 season.{{EPAC hurricane best track}} A [[Hurricane Hunter|reconnaissance aircraft]] in the cyclone at this time observed a {{convert|45|mi|km|abbr=on}} diameter eye.<ref name="MWR" /> High pressure steering the storm west-northwest gave way to strong southwesterly flow aloft, causing the storm to recurve northeast in a much less favorable environment. Subsequent recon missions found a much weakened cyclone,<ref name="MWR" /> and Norman ultimately dissipated south of [[San Clemente Island]] after 00:00&nbsp;UTC on September&nbsp;7.{{EPAC hurricane best track}}

A man and his son were killed offshore Mexico after their boat crashed in rough seas.<ref>{{cite news|title=Oil Executive Is Found Dead|url=https://www.newspapers.com/clip/91956391/the-bismarck-tribune/|newspaper=[[The Bismarck Tribune]]|volume=105|issue=213|page=15|date=September 9, 1978|accessdate=January 6, 2022|location=Bismarck, North Dakota|via=Newspapers.com}}</ref> Along the coastline of California, waves up to {{convert|10|ft|m|abbr=on}} caused damage to ships and prompted lifeguards to rescue hundreds of swimmers.<ref>{{cite news|author=[[Associated Press]]|title=Southland Braces For Tropical Storm|url=https://www.newspapers.com/clip/92011745/santa-cruz-sentinel/|newspaper=[[Santa Cruz Sentinel]]|date=September 5, 1978|accessdate=January 6, 2022|page=1|location=Santa Cruz, California|via=Newspapers.com}}</ref> The remnants of Norman combined with a trough and a front to produce accumulating precipitation across the [[Sierra Nevada]] and surrounding locales, including rainfall up to {{convert|7.01|in|mm|abbr=on}} and snowfall up to {{convert|5|in|mm|abbr=on}}.<ref>{{cite web|title=Hurricane Norman - September 4–7, 1978|url=https://www.wpc.ncep.noaa.gov/tropical/rain/norman1978.html|publisher=[[Weather Prediction Center]]|accessdate=January 6, 2022}}</ref> These rains caused numerous traffic accidents which resulted in the deaths of two people.<ref>{{cite news|author=Thom Akeman|title=Sierra Storms' Toll Is 5; 16 Still Missing|url=https://www.newspapers.com/clip/92004487/the-sacramento-bee/|newspaper=[[The Sacramento Bee]]|page=2|volume=241|issue=40045|date=September 7, 1978|accessdate=January 6, 2022|location=Sacramento, California|via=Newspapers.com}}</ref><ref>{{cite news|author=Dick Cooper|title=Tropical rain drops on county|url=https://www.newspapers.com/clip/92008953/the-san-bernardino-county-sun/|newspaper=[[The San Bernardino Sun]]|date=September 6, 1978|accessdate=January 6, 2022|page=2|location=San Bernardino, California|via=Newspapers.com}}</ref> Flooding also caused extensive damage to California crops. The raisin crop in particular was 95 percent destroyed, the biggest agricultural loss in California state history. Lingering cloud cover prevented ample drying in the wake of the storm, exacerbating agricultural losses, which were placed in excess of $300&nbsp;million.<ref name="MWR" /> In higher elevations, four people were killed after suffering from hypothermia.<ref>{{cite news|title=Storm turns summer hike into tragedy in mountains|url=https://www.newspapers.com/clip/91957045/the-san-bernardino-county-sun/|newspaper=The San Bernardino Sun|date=September 8, 1978|accessdate=January 6, 2022|page=5|location=San Bernardino, California|via=Newspapers.com}}</ref> Sporadic power outages affected 15,000&nbsp;customers.<ref>{{cite news|title=Storm kills four hikers, hurt crops|url=https://www.newspapers.com/clip/92001615/wisconsin-state-journal/|newspaper=[[Wisconsin State Journal]]|page=24|date=September 8, 1978|accessdate=January 6, 2022|location=Madison, Wisconsin|via=Newspapers.com}}</ref>
{{clear}}

=== Hurricane Olivia ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = Olivia Sept 22 1978 0000Z.png
 | Track         = Greta-Olivia_1978 track.png
 | Formed        = September 20 <small>([[1978 Atlantic hurricane season#Hurricane Greta|Entered basin]])</small>
 | Dissipated    = September 23
 | 1-min winds   = 65
}}
{{Main|Hurricane Greta–Olivia}}
The Atlantic's Hurricane Greta struck [[Central America]] and maintained its status as a tropical cyclone while crossing into the East Pacific. It emerged into the Gulf of Tehuantepec as a tropical depression but soon gained strength over warm waters; since it entered a new basin, the depression was reclassified as Tropical Storm Olivia. The cyclone moved erratically after this point while continuing to intensify,<ref name="MWR" /> becoming a hurricane and attaining peak winds of {{convert|75|mph|km/h|abbr=on}} by 00:00&nbsp;UTC on September&nbsp;22.{{EPAC hurricane best track}} Olivia eventually tracked north-northeast, moving onshore about {{convert|60|mi|km|abbr=on}} east of Salina Cruz between 19:00–20:00&nbsp;UTC that day;<ref name="MWR" /> the system maintained winds of {{convert|60|mph|km/h|abbr=on}} at that time. Rapid weakening occurred thereafter, and Olivia dissipated after 00:00&nbsp;UTC on September&nbsp;23.{{EPAC hurricane best track}}
{{clear}}

=== Tropical Storm Paul ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = Paul Sept 25 1978 1800Z.png
 | Track         = Paul 1978 track.png
 | Formed        = September 23
 | Dissipated    = September 27
 | 1-min winds   = 40
}}
Tropical Storm Paul, the second system alongside Hurricane John without any genesis ties to the Atlantic,<ref name="tropicalsystems" /> was first identified north of Hurricane Olivia on September&nbsp;22.<ref name="MWR" /> The system developed into a tropical depression by 00:00&nbsp;UTC on September&nbsp;23 but failed to intensify for several days thereafter. Finally, by 12:00&nbsp;UTC on September&nbsp;25, the system organized into Tropical Storm Paul.{{EPAC hurricane best track}} It attained peak winds of {{convert|45|mph|km/h|abbr=on}} six hours later as it curved toward the northeast, narrowly missing [[Baja California Sur]].<ref name="MWR" /> Paul began to weaken as it approached the Mexico coastline, which it struck as a tropical depression around 12:00&nbsp;UTC on September&nbsp;26.<ref name="MWR" /> Six hours later, the depression transitioned into an extratropical cyclone,{{EPAC hurricane best track}} which only persisted for an additional six hours before dissipating over northern Mexico.<ref name="MWR" />

The remnants of Paul continued into the United States, producing generally light rain across Texas and Oklahoma.<ref>{{cite news|title=More Light Rain Due For ETexas|url=https://www.newspapers.com/clip/91943483/|newspaper=[[Tyler Morning Telegraph]]|volume=48|issue=315|page=1|date=September 28, 1978|accessdate=January 5, 2022|location=Tyler, Texas|via=Newspapers.com}}</ref><ref>{{cite news|title=State Summary|url=https://www.newspapers.com/clip/91944447/the-daily-oklahoman/|newspaper=[[The Oklahoman]]|page=44|date=September 27, 1978|accessdate=January 5, 2022|location=Oklahoma City, Oklahoma|via=Newspapers.com}}</ref> In southwestern Texas, some residents were evacuated, some homes saw water seep into their interiors, and some highways were closed due to high water, including a {{convert|20|mi|km|abbr=on|round=5}} stretch of [[Interstate 20 in Texas|Interstate 20]]. Flood warnings had been hoisted across multiple counties there.<ref>{{cite web|title=Rain May Be A Pain|url=https://www.newspapers.com/clip/91943866/tyler-morning-telegraph/|newspaper=Tyler Morning Telegraph|volume=48|issue=315|pages=1, 5|date=September 27, 1978|accessdate=January 5, 2022|via=Newspapers.com}}</ref>
{{clear}}

=== Hurricane Rosa ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = Rosa Oct 4 1978 1800Z.png
 | Track         = Rosa 1978 track.png
 | Formed        = October 2
 | Dissipated    = October 7
 | 1-min winds   = 75
}}
Two areas of disturbed weather focused south of the Gulf of Tehuantepec on October&nbsp;1, one of which with origins as a tropical wave, underwent [[Fujiwhara effect|binary interaction]] and merged into one larger system the next day.<ref name="MWR" /> The disturbance was upgraded to a tropical depression around 18:00&nbsp;UTC, and it further intensified into Tropical Storm Rosa by 00:00&nbsp;UTC on October&nbsp;3.{{EPAC hurricane best track}} Rosa moved around the western periphery of an upper-level ridge,<ref name="MWR" /> strengthening over warm waters as it did so. The cyclone became a hurricane by 00:00&nbsp;UTC on October&nbsp;4, ultimately attaining peak winds of {{convert|85|mph|km/h|abbr=on}} on October&nbsp;4.{{EPAC hurricane best track}} An aircraft reconnaissance plane intercepted the storm around this time, finding a {{convert|35|mi|km|abbr=on}} elliptical eye open to the southwest.<ref name="MWR" /> Rosa moved northwest over colder waters, transitioning to an extratropical cyclone around 06:00&nbsp;UTC on October&nbsp;7 and ultimately dissipating west of Baja California after twelve hours.<ref name="MWR" />{{EPAC hurricane best track}}
{{clear}}

=== Hurricane Susan ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = SusanOctober191978.gif
 | Track         = Susan 1978 path.png
 | Formed        = October 18
 | Dissipated    = October 24
 | 1-min winds   = 115
 | Pressure      = 954
}}
An area of disturbed weather within the ITCZ developed into Tropical Storm Susan around 00:00&nbsp;UTC on October&nbsp;18.<ref name="CPHCseasonal" /> The storm intensified over subsequent days, becoming a hurricane around 00:00&nbsp;UTC on October&nbsp;20 and further developing into a major hurricane by 18:00&nbsp;UTC the next day. Susan attained Category&nbsp;4 strength with winds of {{convert|130|mph|km/h|abbr=on}} six hours later,{{EPAC hurricane best track}} one of the strongest on record in the Central Pacific at that time. Although the powerful hurricane initially tracked northwest toward Hawaii, it sharply veered toward the southwest while succumbing to strong [[wind shear]].<ref name="CPHCseasonal"/> Susan weakened rapidly, with winds falling from {{convert|115|to|35|mph|km/h|abbr=on}} within 24&nbsp;hours, and dissipated after 00:00&nbsp;UTC on October&nbsp;24.{{EPAC hurricane best track}}
{{clear}}

=== Tropical Storm Sergio ===
{{Infobox Hurricane Small
 | Basin         = EPac
 | Image         = Sergio Oct 19 1978 1800Z.png
 | Track         = Sergio 1978 track.png
 | Formed        = October 18
 | Dissipated    = October 21
 | 1-min winds   = 35
}}
The final storm of the 1978 season began as a disturbance, with origins as an African wave,<ref name="tropicalsystems" /> southeast of [[Socorro Island]] on October&nbsp;18.<ref name="MWR" /> The system moved northwest, developing into Tropical Storm Sergio at 18:00&nbsp;UTC that day and reaching peak winds of {{convert|40|mph|km/h|abbr=on}}.{{EPAC hurricane best track}} Sergio maintained this intensity until it began to curve northward into cooler waters,<ref name="MWR" /> which caused the system to transition into an extratropical cyclone by 00:00&nbsp;UTC on October&nbsp;21 and dissipate to the northwest of Baja California Sur after twelve hours.<ref name="MWR" />{{EPAC hurricane best track}}
{{clear}}

=== Other systems ===
* In addition to the system's numerous tropical cyclones, several tropical depressions were recorded. The first system developed well to the southwest of Daniel on June&nbsp;29 and became a tropical depression the next day. It moved west to west-southwest and dissipated on July&nbsp;2.<ref name="MWR" /> 

* On August&nbsp;5, a disturbance developed within a very active portion of the ITCZ over the Central Pacific. The cyclone organized into a tropical depression on or before August&nbsp;7 but failed to intensify into a tropical storm before dissipating on August&nbsp;9. Regardless, it produced strong thunderstorms across the Hawaiian Islands, with rainfall amounts generally averaging {{convert|3|–|5|in|mm|abbr=on}}.<ref name="CPHCseasonal" /> 

*Another tropical depression formed on August&nbsp;8 from a disturbance first identified three days prior. Like the depression in the East Pacific before it, the system curved west-southwest over cooler waters and dissipated after having only existed six hours. 

*On September&nbsp;7, a new area of disturbed weather was observed, and it intensified into the season's final tropical depression the next day. That cyclone curved north-northeast and dissipated on September&nbsp;9.<ref name="MWR" />

== Storm names ==
{{Tropical cyclone naming}}
The following list of names was used for named storms that formed in the North Pacific Ocean east of [[140th meridian west|140°W]] in 1978.<ref name="NHOP 78">{{cite report|url=https://www.aoml.noaa.gov/general/lib/lib1/nhclib/Publications/NatHurricaneOpsPlans/HOPs-1978.pdf|pages=10, 13-14|publisher=[[NOAA]] Office of the Federal Coordinator for Meteorological Services and Supporting Research|location=Washington, D.C.|title=National Hurricane Operations Plan|date=May 1978|access-date=January 16, 2024}}</ref> This is the first season to feature both male and female names, and is also the first year of the modern naming lists for the basin.<ref name="TC Naming">{{cite web|title=Tropical Cyclone Naming History and Retired Names|url=https://www.nhc.noaa.gov/aboutnames_history.shtml|publisher=National Hurricane Center|location=Miami, Florida|access-date=January 16, 2024}}</ref> Most of these names were used for the first time, except for Aletta, Carlotta, Iva and Olivia, which were previously used in the old four-year lists.<ref name=ATWC>{{cite web|access-date=February 8, 2024|title=Eastern North Pacific Tropical Cyclone Name History|publisher=Atlantic Tropical Weather Center|url=http://www.atwc.org/pachist.txt|archive-url= https://web.archive.org/web/20070929105925/http://www.atwc.org/pachist.txt|archive-date=September 29, 2007|url-status=dead}}</ref>

{| width="90%"
|
* Aletta
* Bud{{thin space}}*
* Carlotta{{thin space}}*
* Daniel{{thin space}}*
* Emilia
* [[Hurricane Fico|Fico]]{{thin space}}*
* Gilma{{thin space}}*
|
* Hector{{thin space}}*
* Iva{{thin space}}*
* John{{thin space}}*
* Kristy{{thin space}}*
* Lane{{thin space}}*
* Miriam{{thin space}}*
* [[Hurricane Norman (1978)|Norman]]
|
* [[Hurricane Greta-Olivia|Olivia]]
* Paul
* Rosa
* Sergio
* {{tcname unused|Tara}}
* {{tcname unused|Vicente}}
* {{tcname unused|Willa}}
|}

The following tropical storm formed in the North Pacific between 140°W and the [[International Date Line]] in 1978. At the time, storm names within this region were assigned by the [[Joint Typhoon Warning Center]] on [[Guam]].<ref name="NHOP 78"/><ref name=ATWC/> Named storms in the table above that crossed into the area during the season are noted (*).<ref name="CPHCseasonal"/>

{| width="90%"
|
* Susan
|}

===Retirement===
{{see also|List of retired Pacific hurricane names}}
The [[World Meteorological Organization]] retired the name Fico from future use following the 1978 season.<ref name="TC Naming"/> It was replaced with Fabio for the [[1982 Pacific hurricane season|1982 season]].<ref name="NHOP 82">{{cite report|url=https://www.aoml.noaa.gov/general/lib/lib1/nhclib/Publications/NatHurricaneOpsPlans/National%20Hurricane%20Operations%20Plan%20(1982).pdf|page=3{{hyphen}}8|publisher=[[NOAA]] Office of the Federal Coordinator for Meteorological Services and Supporting Research|location=Washington, D.C.|title=National Hurricane Operations Plan|date=May 1982|access-date=February 8, 2024}}</ref>

==Season effects==
This is a table of all of the tropical cyclones that formed in the 1978 Pacific hurricane season. It includes their name, duration, peak classification and intensities, areas affected, damage, and death totals. Deaths in parentheses are additional and indirect (an example of an indirect death would be a traffic accident), but were still related to that storm. Damage and deaths include totals while the storm was extratropical, a wave, or a low, and all of the damage figures are in 1978 USD.
{{Saffir–Simpson small|align=center}}{{TC stats table start3|year=1978|basin=Pacific hurricane|align=center}}
{{TC stats cyclone3|cat=cat1|name=Aletta|dates=May&nbsp;30–31|max-winds=75 (120)|min-press=Unknown|areas=None|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=storm|name=Bud|dates=June&nbsp;17–20|max-winds=60 (95)|min-press=Unknown|areas=None|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=cat4|name=Carlotta|dates=June&nbsp;17–25|max-winds=130 (215)|min-press=Unknown|areas=[[Hawaiian Islands]]|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=cat3|name=Daniel|dates=June&nbsp;26&nbsp;– July&nbsp;3|max-winds=115 (185)|min-press=Unknown|areas=Hawaiian Islands|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=storm|name=Emilia|dates=July&nbsp;6–10|max-winds=65 (100)|min-press=Unknown|areas=None|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=cat4|name=Fico|dates=July&nbsp;9–28|max-winds=140 (220)|min-press=Unknown|areas=Hawaiian Islands, [[Aleutian Islands]]|damage=$200,000|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=cat3|name=Gilma|dates=July&nbsp;13–20|max-winds=115 (185)|min-press=Unknown|areas=None|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=cat4|name=Hector|dates=July&nbsp;22–29|max-winds=140 (220)|min-press=Unknown|areas=None|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=cat1|name=Iva|dates=August&nbsp;11–15|max-winds=75 (120)|min-press=Unknown|areas=Hawaiian Islands|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=cat2|name=John|dates=August&nbsp;18–30|max-winds=105 (165)|min-press=Unknown|areas=None|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=cat2|name=Kristy|dates=August&nbsp;18–28|max-winds=105 (165)|min-press=Unknown|areas=None|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=storm|name=Lane|dates=August&nbsp;19–24|max-winds=50 (85)|min-press=Unknown|areas=None|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=cat1|name=Miriam|dates=August&nbsp;23&nbsp;– September&nbsp;2|max-winds=90 (150)|min-press=Unknown|areas=None|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=cat4|name=Norman|dates=August&nbsp;30&nbsp;– September&nbsp;7|max-winds=140 (220)|min-press=Unknown|areas=[[California]]|damage=>$300 million|deaths=2 (6)}}<ref name="MWR" />
{{TC stats cyclone3|cat=cat1|name=Olivia|dates=September&nbsp;20–23|max-winds=75 (120)|min-press=Unknown|areas=[[Chiapas]]|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=storm|name=Paul|dates=September&nbsp;23–27|max-winds=45 (75)|min-press=Unknown|areas=[[Northern Mexico]]|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=cat1|name=Rosa|dates=October&nbsp;2–7|max-winds=85 (140)|min-press=Unknown|areas=None|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=cat4|name=Susan|dates=October&nbsp;18–24|max-winds=130 (215)|min-press=Unknown|areas=None|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats cyclone3|cat=storm|name=Sergio|dates=October&nbsp;18–21|max-winds=40 (65)|min-press=Unknown|areas=None|damage=None|deaths=None}}<ref name="MWR" />
{{TC stats table end3|num-cyclones=19|dates=May 30&nbsp;– October&nbsp;21|max-winds=140 (220)|min-press=Unknown|tot-areas=|tot-damage=>{{ntsp|300000000||$}}|tot-deaths= 2 (6)}}

== See also ==
{{Portal|Tropical cyclones}}
* [[List of Pacific hurricanes]]
* [[Pacific hurricane season]]
* [[1978 Atlantic hurricane season]]
* [[1978 Pacific typhoon season]]
* [[1978 North Indian Ocean cyclone season]]
* Australian cyclone seasons: [[1977–78 Australian region cyclone season|1977–78]], [[1978–79 Australian region cyclone season|1978–79]]
* South Pacific cyclone seasons: [[1977–78 South Pacific cyclone season|1977–78]], [[1978–79 South Pacific cyclone season|1978–79]]
* South-West Indian Ocean cyclone seasons: [[1977–78 South-West Indian Ocean cyclone season|1977–78]], [[1978–79 South-West Indian Ocean cyclone season|1978–79]]

== References ==
{{Reflist|30em}}

{{Highest ACE Pacific hurricane seasons navbox}}
{{1978 Pacific hurricane season buttons}}
{{TC Decades|Year=1970|basin=Pacific|type=hurricane}}
{{Tropical cyclone season|1978}}

{{DEFAULTSORT:1978 Pacific Hurricane Season}}
[[Category:1978 Pacific hurricane season| ]]
[[Category:Pacific hurricane seasons]]
[[Category:Articles which contain graphical timelines]]