1978 Pacific hurricane season

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1978 Pacific hurricane season
Season summary map
First system formed May 30, 1978
Last system dissipated October 21, 1978
Strongest storm Fico, Hector, and Norman – 140 mph (220 km/h) (1-minute sustained)
Total depressions 23
Total storms 19
Hurricanes 14
Major hurricanes (Cat. 3+) 7
Total fatalities Unknown
Total damage Unknown
Pacific hurricane seasons
1976, 1977, 1978, 1979, 1980

The 1978 Pacific hurricane season officially began May 15, 1978, in the eastern Pacific, June 1, 1978 in the central Pacific, and officially ended 30 November 1978. These dates conventionally delimit the period of time when tropical cyclones form in the eastern north Pacific Ocean.

Activity this year was slightly above average, with eighteen named storms forming. Five of those were tropical storms, thirteen were hurricanes, and six were major hurricanes that reached Category 3 or higher on the Saffir-Simpson Hurricane Scale. In the Central Pacific, a tropical depression and a major hurricane formed.

Storms[edit]

Hurricane Greta-Olivia Hurricane Norman (1978) Hurricane Fico Saffir–Simpson Hurricane Scale

Hurricane Aletta[edit]

Category 1 hurricane (SSHS)
Duration May 30 – May 31
Peak intensity 75 mph (120 km/h) (1-min) 

Aletta made landfall in western Mexico as a tropical storm on May 31.

Tropical Storm Bud[edit]

Tropical storm (SSHS)
Duration June 17 – June 20
Peak intensity 60 mph (95 km/h) (1-min) 

Bud formed on June 17 and dissipated 3 days later without affecting land. Bud was the first East Pacific Tropical Cyclone to receive a male name.

Hurricane Carlotta[edit]

Category 4 hurricane (SSHS)
Duration June 17 – June 25
Peak intensity 130 mph (215 km/h) (1-min) 

Carlotta was a category 4 hurricane that did not affect land. At the time, it was the third strongest June storm, after 1973's Ava and 1976's Annette.

Hurricane Daniel[edit]

Category 3 hurricane (SSHS)
Duration June 26 – July 3
Peak intensity 115 mph (185 km/h) (1-min) 

Daniel was a strong category three hurricane which did not affect land. It made 1978 the first season with multiple major hurricanes in June at the time; 2010 would follow.

Tropical Depression Five[edit]

Tropical depression (SSHS)
Duration June 30 – July 2
Peak intensity 30 mph (45 km/h) (1-min) 

Existed between June 30 and July 2.

Tropical Storm Emilia[edit]

Tropical storm (SSHS)
Duration July 6 – July 10
Peak intensity 65 mph (100 km/h) (1-min) 

Emilia was a short lived tropical storm which did not affect land.

Hurricane Fico[edit]

Category 4 hurricane (SSHS)
Duration July 9 – July 28
Peak intensity 140 mph (220 km/h) (1-min) ≤ 955 mbar (hPa)
Main article: Hurricane Fico (1978)

Hurricane Fico was the longest-lived hurricane of the season and at the time was the longest-lasting Pacific hurricane on record. It developed from a tropical disturbance off the coast of Mexico on July 9. It moved northwestward and then westward, quickly reaching peak winds of 140 mph (220 km/h) on July 12. Moving nearly due westward, the intensity of Fico fluctuated from Category 1 to Category 4 status on the Saffir-Simpson Hurricane Scale for the following days, and it passed about 170 miles (275 km) south of Hawaii on July 20 with winds of 115 mph (185 km/h). Fico slowly weakened as it turned to the northwest over cooler waters, and became an extratropical cyclone on July 28 to the northeast of Midway Island.

Swells from Fico, combined with swells from a storm in the Southern Hemisphere, produced rough surf throughout the Hawaiian islands. The surf destroyed one house and resulted in considerable damage along the southern coast of the island of Hawaii. No deaths were reported, and damage totaled $200,000 (1978 USD, $619,000 2006 USD).[1]

Hurricane Gilma[edit]

Category 3 hurricane (SSHS)
Duration July 13 – July 20
Peak intensity 115 mph (185 km/h) (1-min) 

Gilma was a short-lived storm which did not affect land.

Hurricane Hector[edit]

Category 4 hurricane (SSHS)
Duration July 22 – July 29
Peak intensity 140 mph (220 km/h) (1-min) 

Hector was the strongest storm of this year, but did not affect land.

Tropical Depression Ten[edit]

Tropical depression (SSHS)
Counterclockwise vortex
Duration August 6 – August 9
Peak intensity 35 mph (55 km/h) (1-min) 

Existed on August 8.

Hurricane Iva[edit]

Category 1 hurricane (SSHS)
Duration August 11 – August 15
Peak intensity 75 mph (120 km/h) (1-min) 

Iva's scattered remnants caused rain on the islands of Hawaii and Maui.

Tropical Depression 10A[edit]

Tropical depression (SSHS)
Counterclockwise vortex
Duration August 7 – August 9
Peak intensity 35 mph (55 km/h) (1-min) 

Existed in the Central Pacific. This system was labeled Tropical Depression 10-A by the Joint Typhoon Warning Center.

Hurricane John[edit]

Category 2 hurricane (SSHS)
Duration August 18 – August 31
Peak intensity 105 mph (165 km/h) (1-min) 

John was a category 2 storm that did not affect land.

Hurricane Kristy[edit]

Category 2 hurricane (SSHS)
Duration August 18 – August 28
Peak intensity 105 mph (165 km/h) (1-min) 

Kristy was a category 2 storm that did not affect land.

Tropical Storm Lane[edit]

Tropical storm (SSHS)
Duration August 19 – August 24
Peak intensity 50 mph (85 km/h) (1-min) 

Lane was a storm that did not affect land.

Hurricane Miriam[edit]

Category 1 hurricane (SSHS)
Duration August 23 – September 2
Peak intensity 90 mph (150 km/h) (1-min) 

Miriam threatened the Hawaiian Islands as a tropical storm, but veered south. Miriam had no effect on the islands. The storm dissipated September 2.

Hurricane Norman[edit]

Category 4 hurricane (SSHS)
Duration August 30 – September 7
Peak intensity 140 mph (220 km/h) (1-min) 

Norman was powerful Category 4 hurricane. It had no effect on land as a hurricane, but after weakening to a tropical storm, Norman recurved and headed straight for southern California. Norman made landfall as a depression and had dissipated by September 7. Heavy rains fell across the Sierra Nevada range in California, with a maximum amount of 7.01 inches reported at Lodgepole.[2]

Tropical Depression Seventeen[edit]

Tropical depression (SSHS)
Duration September 8 – September 9
Peak intensity 30 mph (45 km/h) (1-min) 

Existed between September 8 and September 9.

Hurricane Olivia[edit]

Category 1 hurricane (SSHS)
Duration September 20 – September 23
Peak intensity 75 mph (120 km/h) (1-min) 

Hurricane Olivia was a continuation of Atlantic Hurricane Greta. The depression emerged from Central America and quickly restrengthened into Tropical Storm Olivia. The storm erratically changed course and headed straight north as a hurricane. Olivia made landfall near the Isthmus of Tehuantepec and dissipated on September 23.

Tropical Storm Paul[edit]

Tropical storm (SSHS)
Duration September 23 – September 27
Peak intensity 45 mph (75 km/h) (1-min) 

Paul brushed the southern tip of Baja California and made landfall in western Mexico.

Hurricane Rosa[edit]

Category 1 hurricane (SSHS)
Duration October 2 – October 7
Peak intensity 85 mph (140 km/h) (1-min) 

As a tropical storm, Rosa came close to Baja California Sur but never made landfall.

Hurricane Susan[edit]

Category 4 hurricane (SSHS)
Duration October 18 – October 24
Peak intensity 130 mph (215 km/h) (1-min)  954 mbar (hPa)

The only cyclone to develop in the central Pacific did so on October 18. Susan rapidly intensified into a Category 4 hurricane and one of the three strongest storms then known in the central Pacific. Initially heading on a course that aimed directly at the Big Island, Susan instead turned to the southwest and decayed rapidly due to wind shear.

Tropical Storm Sergio[edit]

Tropical storm (SSHS)
Duration October 18 – October 21
Peak intensity 40 mph (65 km/h) (1-min) 

Sergio dissipated before making landfall on the Pacific coast of Baja California.

1978 Storm Names[edit]

These names were used for storms forming in the eastern Pacific Ocean this year. This is the first time these names were used except for Carlotta and Olivia, which was used in 1967, 1971, and 1975. Names not retired from this list were used in the 1982 season. At this time, lists were intended to be repeated every four years instead of six.

This is the first season to use lists with male and female names on it. It is also the first year of modern naming.

  • Aletta
  • Bud
  • Carlotta
  • Daniel
  • Emilia
  • Fico
  • Gilma
  • Hector
  • Iva
  • John
  • Kristy
  • Lane
  • Miriam
  • Norman
  • Olivia
  • Paul
  • Rosa
  • Sergio
  • Tara (unused)
  • Vicente (unused)
  • Willa (unused)

The central Pacific used names and numbers from the western Pacific's typhoon list. One name – Susan – was used.

Retirement[edit]

The World Meteorological Organization retired the name Fico in the spring of 1979. It was replaced with Fabio.

See also[edit]

References[edit]

  1. ^ The State of Hawaii Data Book (2000). "Geography and Environment of Hawaii". Retrieved 2006-12-10. 
  2. ^ Hydrometeorological Prediction Center. Hurricane Norman. Retrieved on 2007-02-28.

External links[edit]