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1986 Pacific hurricane season

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1986 Pacific hurricane season
Season summary map
Seasonal boundaries
First system formedMay 22, 1986
Last system dissipatedOctober 22, 1986
Strongest storm
NameRoslyn
 • Maximum winds145 mph (230 km/h)
Seasonal statistics
Total depressions26
Total storms17
Hurricanes9
Major hurricanes
(Cat. 3+)		3
Total fatalities2
Total damage$352 million (1986 USD)
Pacific hurricane seasons
1984, 1985, 1986, 1987, 1988

The 1986 Pacific hurricane season was a moderately active Pacific hurricane season.[1] As of 2012, it officially started May 15, 1986 in the eastern Pacific, and June 1, 1986 in the central Pacific, and lasted until November 30, 1986. These dates conventionally delimit the period of each year when most tropical cyclones form in the northeastern Pacific Ocean.[2] A total of 17 tropical storms and hurricanes formed in 1986, which is slightly above average.

Several storms throughout the season affected land. Hurricane Estelle passed south of Hawaii, resulting in $2 million in damage and two deaths. Hurricanes Newton, Paine, and Roslyn also struck Northwestern Mexico. While damage was minimal from these three systems near the location of landfall, Paine caused major flooding in the Great Plains of the United States, especially in Oklahoma. The overall flooding event resulted in $350 million in damage (1986 USD).

Seasonal summary

Activity in the Eastern Pacific Hurricane Center's (EPHC) area of responsibility was above average. There were 25 tropical depressions, one short of the record set in 1982, which had 26 depressions. The season began with the formation of Hurricane Agatha on May 22 and the dissipation of Tropical Depression Twenty Five-E on October 25, spanning 147 days. Although it was nearly two weeks shorter than the 1985 Pacific hurricane season, it was six days longer than the long term average. The EPHC issued 406 tropical cyclone advisories, which were issued four times a day at a regular base 0000, 0600, 1200, 1800 UTC.[1]

Hurricane Hunters also flew into three storms; Newton, Roslyn, and Estelle.[1][3] In Newton, the National Oceanic and Atmospheric Administration conducted an environmental research in to the cyclone. According to the EPHC, National Weather Service Field Service Station provided the East Pacific with excellent satellite coverage.[1] Only one storm formed in the Central Pacific Hurricane Center's (CPHC) area of responsibility, Tropical Depression One-C. Six other cyclones entered the CPHC area of responsibility from the EPHC area of responsibility.[3] In all, 17 systems formed, which is two storms above normal. There were 9 hurricane, one more than average. A normal number of major hurricanes was also reported.[4][5]

Rainfall summary of Hurricane Roslyn

During the first two months of the hurricane season, four systems developed. In July, one tropical storm and two hurricanes formed. Five storms formed in August, though only two of them impacted any land. Towards the end of the season, the activity declined somewhat. While five storms formed in September, only one formed in October.[4]

Three tropical cyclones made landfall in 1986; the worst effects in Mexico were from Roslyn. Another storm, Hurricane Paine was described as one of the worst floods in Oklahoma history.[6] Flooding affected 52 counties in Oklahoma, which resulted in a total of $350 million in damage.[7] In addition, Hurricane Estelle came close enough to Hawaii to require a hurricane watch.[8] Two drownings were reported, and the total damage was around $2 million (1986 US$; $5.56 million 2024 USD).[3]

In addition to the 17 named storms, there were eight systems during the season that failed to reached tropical storm strength, seven of which are listed below. The first, Tropical Depression Seven began as a large area of thunderstorms near Hurricane Estelle on July 17. Moving at a steady pace, the cyclone failed to intensify and peaked at 30 mph (50 km/h). Cool sea surface temperatures and its close proximity to Hurricane Estelle eventually caused the depression to dissipate late on July 18.[1]

Tropical Depression Eight began over 81 °F (27 °C) water on July 21 while located 1,000 mi (1,600 km) southwest of the Baja California Peninsula. Initially moving west-northwest around an upper-level high, the depression peaked with winds of 35 mph (55 km/h). It dissipated on July 24.[1][9] Another tropical disturbance first formed on July 24. A circulation developed two days later, and thus it was classified as Tropical Depression Ten. The cyclone remained a steady state tropical depression for about three days before moving into the CPHC's area of responsibility on 1000 UTC July 27. A slow weakening began as the depression continued to move west at velocities as high as 30 mph (45 km/h). By 1800 UTC on July 29, it had became poorly organized around 1,000 mi (1,600 km) west-southwest of the Hawaiian Islands, and the final advisory was issued.[1][3][9]

Tropical Depression One-C was tracked westward at a fairly rapid forward speed of 35 mph (55 km/h) on July 27. It is likely that the depression was formed from the remnants of a Tropical Depression Eight-E that had dissipated a few days earlier well to the east of 140 °W. Tropical Depression One-C failed to develop past the depression stage. It passed well south of the Hawaiian Islands on July 28 with no noticeable effects on the island's weather. On July 29 at 0000 UTC, it had dissipated to the southwest of the Hawaiian Islands and the final advisory was issued.[3][9]

An area of disturbed weather developed a circulation on August 12 and was respectively upgraded upgraded into Tropical Depression Twelve nearly 700 mi (1,100 km) south of the Baja California Peninsula. It drifted slowly north-west until it dissipated near 22 °N 110 °W on August 14. Peak maximum sustained winds were estimated at 35 mph (56 km/h).[1] Tropical Depression Seventeen formed on September 8 30 km (19 mi) east of Socorro Island and dissipated on September 9 over cold water without becoming a tropical storm.[1]

One of the last cyclones of the season formed from a westward-moving tropical disturbance in the ITCZ.[1] The disturbance moved at about 10 mph (20 km/h). The disturbance was declared Tropical Depression Twenty-One at 0600 UTC September 19. However the depression lasted a short time, only six hours, when it dissipated, likely due to the close distance between it and Tropical Storm Madeline.[1] Tropical Depression Twenty-Five was the final tropical depression of the 1986 season.[1] It formed on October 22 at 1800 UTC near the 140°W line. Due to strong wind shear, the stationary storm had dissipated within 30 hours of formation.[1] Even though no more official systems developed, a forecaster at the National Hurricane Center remarked that an unnamed tropical storm may have formed in November.[10]

Storms

Hurricane Agatha

Category 1 hurricane (SSHWS)
 
DurationMay 22 – May 29
Peak intensity75 mph (120 km/h) (1-min);

The 1986 Pacific hurricane season's first tropical disturbance formed 864 mi (1,390 km) from the tip of Baja California Sur on May 20.[1] By 0000 UTC May 22, the circulation began to come together and the EPHC upgraded the disturbance into Tropical Depression One-E that morning. Approximately 48 hours after becoming a tropical depression, the system was upgraded into Tropical Storm Agatha, the first storm of the season. Shortly thereafter, the cyclone made an abrupt change in direction, turning towards the north. Agatha strengthened into a hurricane on May 25 near the coast of Mexico, reaching its peak intensity of 75 mph (115 km/h). Hurricane Agatha changed direction again, this time moving towards the southeast. The system quickly weakened into a tropical depression, but regained tropical storm strength on May 28 and again on May 29, only to dissipate that day.[1] Rainfall spread around both the Mexican coasts, peaking at 10.75 in (273 mm) at Xicotepec de Juarez.[11]

Tropical Depression Two-E

Tropical depression (SSHWS)
 
DurationMay 31 – June 1
Peak intensity30 mph (45 km/h) (1-min);

A tropical disturbance formed on May 30 in the eastern Gulf of Tehuantepec. The disturbance became close to being stationary when it was upgraded to Tropical Depression Two-E on May 31. The depression began to weaken six hours later and the final advisory by the EPHC was released on June 1.[1] Most of Mexico received rainfall, with over 3 in (76 mm) falling on Yucatán Peninsula. The worst rain was in Central Mexico, where over 15 in (380 mm) rain fell, peaking at 18.63 in (473 mm) in Tenosique. The rest of Mexico was hit by 1–3 in (25–76 mm) of rainfall.[12]

Tropical Storm Blas

Tropical storm (SSHWS)
 
DurationJune 17 – June 19
Peak intensity40 mph (65 km/h) (1-min);

Tropical Storm Blas formed on June 17 from a tropical disturbance that had originated the day before in the Intertropical Convergence Zone (ITCZ). The disturbance moved west-northwest at 13 mph (21 km/h) below a weak upper-level high, becoming into the third tropical depression of the 1986 season. The depression intensified into Tropical Storm Blas the next dayt. It kept that strength for only six hours, weakening into a depression again as it moved into cooler waters. The EPHC ceased advisories on June 19 after Blas's convection dissipated[1] roughly 600 mi (970 km) south of Cabo San Lucas.[4]

Hurricane Celia

Category 1 hurricane (SSHWS)
 
DurationJune 24 – June 30
Peak intensity85 mph (140 km/h) (1-min);

Five days after Tropical Storm Blas dissipated, a tropical disturbance developed south of the Gulf of Tehuantepec. Later that day, its circulation had became well-defined enough for the EPHC to upgrade the disturbance into Tropical Depression Four-E. Winds reached 40 mph (65 km/h), enough to the system into Tropical Storm Celia on June 26. While located off the coast of Mexico, Celia strengthened into a hurricane at 1800 UTC June 27. An eye became evident on satellite imagery and the hurricane reached its peak intensity of 90 mph (145 km/h) on June 28 at 1600 UTC. Hurricane Celia moved into much cooler water, weakening the storm rapidly. By June 30, Celia had become a tropical depression. The EPHC released its final advisory at 1800 UTC that day as the system was dissipating. During its duration, Celia had passed by Socorro Island, however no damage was reported.[1]

Tropical Storm Darby

Tropical storm (SSHWS)
 
DurationJuly 3 – July 7
Peak intensity40 mph (65 km/h) (1-min);

The fifth tropical cyclone of the season formed as a tropical disturbance on July 2. Moving northwest at about 13 mph (21 km/h), the disturbance entered warmer water and strengthening rapidly. The disturbance was upgraded into Tropical Depression Five-E at 1800 UTC July 3. The depression turned to the west-northwestward and strengthened into Tropical Storm Darby on July 5. Darby peaked at 40 mph (60 km/h). The stormed continued northwest for about six hours, when it reached 77 °F (25 °C)* waters and began a weakening trend. Clouds spread northward over the US states of Arizona and southern California on July 6. the cyclone dissipated on July 7.[1]

Hurricane Estelle

Category 4 hurricane (SSHWS)
 
DurationJuly 16 – July 26
Peak intensity130 mph (215 km/h) (1-min);
Main article: Hurricane Estelle (1986)

During the afternoon of July 16, a tropical depression formed well away from land, and within 12 hours it strengthened into a tropical storm. On July 18, Estelle intensified into a hurricane, and located in a favorable environment, Hurricane Estelle continued strengthening to become the first major hurricane of the season on July 20 (Category 3 or higher on the Saffir-Simpson Hurricane Scale).[1] The hurricane entered the Central Pacific Hurricane Center's area of responsibility near its peak strength of 135 mph (215 km/h), a Category 4 hurricane. The hurricane veered to the west and passed south of Hawaii. Estelle weakened to a tropical storm on July 23, and on July 25, it weakened to a depression. The storm dissipated two days later.[3]

In advance of Hurricane Estelle, the National Weather Service issued a hurricane watch and high-surf advisory for the Island of Hawaii.[8] More than 200 people evacuated from their homes.[13] Huge waves crashed on the shores of the Big Island on the afternoon of July 22. The high waves washed away five beachfront homes and severely damaged dozens of others on the beach resort of Vacation Land. The total damage was around $2 million (1986 US$; $5.56 million 2024 USD). However, the only deaths reported from the storm were two drownings in Oahu that occurred on July 23 because of rough surf caused by Estelle.[3]

Hurricane Frank

Category 1 hurricane (SSHWS)
 
DurationJuly 24 – August 3
Peak intensity85 mph (140 km/h) (1-min);

The EPHC began monitoring a tropical disturbance located 315 km (196 mi) southwest of San Salvador on 1800 UTC July 23. About 24 hours later, the disturbance was upgraded into a tropical depression. Initially moving towards the west-northwest due to an upper-level low and a ridge over Mexico, the storm then turned to the west as the upper-level low changed direction. By July 28, the depression was upgraded into Tropical Storm Frank. After turning back to the west-northwest, Frank reached hurricane intensity early on July 30. The storm quickly developed a well-defined eye and three hours later, Hurricane Frank reached its peak intensity as a moderate Category 1 hurricane on the Saffir-Simpson Hurricane Scale. Hurricane Frank maintained this intensity for 18 hours. Subsequently, the hurricane began to rapidly weaken over 76 °F (24 °C) sea surface temperatures. Wind shear soon increased, thus accelerating the weakening process.[1] On July 31, Frank was reduced to tropical storm intensity.[4] Not long after weakening into a depression, the storm entered the CPHC's area of responsibility.[1] Wind shear increased further, and upon entering the region, Frank moved over slightly cooler water. It transitioned into an extratropical cyclone on August 3.[3]

Tropical Storm Georgette

Tropical storm (SSHWS)
 
DurationAugust 3 – August 4
Peak intensity40 mph (65 km/h) (1-min);

On August 3, a tropical depression developed in the open ocean over 600 mi (970 km) west of the Mexican coastline. Twelve hours later, it strengthened into Tropical Storm Georgette before weakening to a depression on August 4. It then accelerated to a very rapid speed of 23–45 mph (37–75 km/h). Due to its fast speed, Georgette could not maintain a closed circulation, and Georgette degenerated into a non-cyclonic disturbance. The disturbance kept up its rapid forward motion, crossed the dateline and entered the western Pacific, where it reformed and reached its peak intensity as Typhoon Georgette.[1][3] Georgette merged with another system on August 16. It is one of only six tropical cyclones to exist in all three tropical cyclone basins in the Pacific Ocean.[14][15]

Tropical Storm Howard

Tropical storm (SSHWS)
 
DurationAugust 16 – August 18
Peak intensity40 mph (65 km/h) (1-min);

A tropical wave crossed Southwestern Mexico and Belize in mid-August. A tropical disturbance developed 52 mi (84 km) south of Acapulco on August 15, the same day that the system moved offshore. Moving west-northwest south of an upper-level high, the system was classified as a tropical depression the next day about 127 mi (204 km) south of Manzanillo. Several hours later, the depression reached tropical storm intensity. Turning towards the northwest due to a trough,[1][16] it failed to intensify beyond minimal tropical storm strength.[4] Passing south of the Baja California Peninsula, the storm rapidly moved over cooler waters. Howard weakened into a tropical depression at 0600 UTC August 18. Transversing 75 °F (24 °C) water, Howard dissipated.[1] Rainfall along the southern coast reached 1 in (25 mm) in some places, with totals in excess of 5 in (130 mm) in isolated locations. Further north, rainfall was more scattered. The maximum rainfall was 9.25 in (235 mm) in Reforma, near the southern part of the country. In all, rainfall totals were recorded in a widespread area.[16]

Tropical Storm Isis

Tropical storm (SSHWS)
 
DurationAugust 19 – August 24
Peak intensity50 mph (85 km/h) (1-min);

A tropical disturbance developed 265 mi (426 km) south of Socorro Island at 1800 UTC August 18. Twenty-four hours later the disturbance was upgraded into a tropical depression on August 19. The depression intensified into Tropical Storm Isis the next day. After peaking as a moderate tropical storm at 1200 UTC August 23, Isis weakened into a depression over 74 °F (23 °C) waters early on August 24. While located some 1,500 mi (2,400 km) west of the Mexican coast, the tropical cyclone dissipated later that day.[1]

Hurricane Javier

Category 4 hurricane (SSHWS)
 
DurationAugust 20 – August 31
Peak intensity130 mph (215 km/h) (1-min);

On August 19, a tropical disturbance formed 460 mi (740 km) south of the Gulf of Tehuantepec and 319 mi (513 km) south of Cabo San Lucas. Satellite imagery began to show signs of developing a circulation, and the disturbance became a tropical depression and intensified into Tropical Storm Javier hours later. Southwest of a ridge, Javier began to turn towards the west-northwest. Despite an increase in forward speed, Tropical Storm Javier underwent rapid intensification, reaching hurricane intensity at 0900 UTC August 21.[1] About three hours later, Javier reached Category 2 strength, and briefly became a major hurricane on August 22, only to rapidly weaken back to a Category 1 hurricane late on August 23.[4]

Hurricane Javier sharply turned towards the north and eventually towards the northwest.[1] Early on August 24, Javier resumed intensification, regaining Category 3 intensity at 0600 UTC.[4] Passing midway between Socorro Island and Clarion Island, the storm reached its peak intensity of 135 mph (215 km/h). Moving beneath the ridge, Hurricane Javier turned to the west[1] and subsequently weakened back into a Category 3 hurricane.[4]

After briefly re-intensifying into a Category 4, the storm resumed weakening[4] due to increasing wind shear,[1] and by late on August 25, Hurricane Javier had weakened directly into a Category 2 hurricane. Shortly thereafter, Javier was downgraded into a Category 1 hurricane. While it managed to maintain marginal hurricane intensity for 24 hours.[4] on 1200 UTC August 28, Javier had finally weakened back into a tropical storm. Shortly after that, Javier turned towards the west-northwest due an upper-level trough. Now over 74 °F (23 °C) waters, the system continued to weaken as wind shear increased further. On August 30, Javier weakened into a depression and dissipated the next day over 1,000 mi (1,600 km) southwest of Southern California.[1]

Hurricane Javier brought the highest waves of the summer to southern California.[17] This created a hazard for swimming, but excellent surfing conditions. High surf advisories were issued.[18] Some waves were as high as 15 ft (4.6 m). The increased swells coincided with an international surfing event and Labor Day Weekend.[19] Due to the former, 600,000 people went to the beaches.[20]

Tropical Storm Kay

Tropical storm (SSHWS)
 
DurationAugust 28 – September 3
Peak intensity45 mph (75 km/h) (1-min);

A tropical disturbance formed 725 mi (1,167 km) east-southeast of Hurricane Javier and nearly 370 mi (600 km) south of the Baja California Peninsula. Moving slowly west, the disturbance began to develop a well-defined circulation, and was respectively upgraded into a tropical depression on August 23. Passing 12 mi (19 km) south of Clarion Island, the depression strengthened into Tropical Storm Kay. The cyclone's forward speed increased; subsequently, Kay reached its peak intensity. After maintaining its intensity for 18 hours, Kay rapidly weakened over cold water, and was downgraded into a depression at 0000 UTC September 2. Kay dissipated the next day several hundred miles west of the Baja California Peninsula.[1]

Tropical Storm Lester

Tropical storm (SSHWS)
 
DurationSeptember 13 – September 17
Peak intensity50 mph (85 km/h) (1-min);

A westward-moving tropical wave organized into a tropical depression on September 13 after an increase in thunderstorm activity occurred. At this time, Lester was located more than 900 mi (1,400 km) west of the Mexican coast. Moving towards the west, the depression soon intensified into Tropical Storm Lester. After turning towards the west-northwest, Lester peaked in intensity as a moderate tropical storm.[1] Due to a combination of strong wind shear[3] and cold water, Lester began a slow weakening trend.[1] When Lester emerged into the CPHC's area of responsibility, it was already a depression. Unable to maintain a closed circulation, the final advisory was issued at 1800 UTC September 17.[3]

Tropical Storm Madeline

Tropical storm (SSHWS)
 
DurationSeptember 15 – September 22
Peak intensity70 mph (110 km/h) (1-min);

A tropical disturbance developed on September 13 and 14 over the warm waters south of Acapulco. On September 15, the Eastern Pacific Hurricane Center first classified the system as a tropical depression. Rapidly moving towards the west, the depression was embedded in deep easterly flow. The system attained tropical storm intensity on 1800 UTC September 16, thus received the name Madeline. After turning towards the west-northwest, Tropical Storm Madeline accelerated. It began a slow intensification trend, and peaked as a high-end tropical storm on 0600 UTC September 18. An upper-level low introduced strong wind shear, and Madeline began to fall apart almost immediately thereafter. After turning towards the north, and slowing down, Madeline dissipated on September 22.[1]

Hurricane Newton

Category 1 hurricane (SSHWS)
 
DurationSeptember 18 – September 24
Peak intensity85 mph (140 km/h) (1-min);
984 mbar (hPa)
Main article: Hurricane Newton (1986)

One of the few storms in 1986 to have major effect on the land, a tropical disturbance became the twentieth depression of the season on September 18. Intensification was slow as the depression did not reach storm status until September 20. Now Tropical Storm Newton, the cyclone began to parallel the Mexican coast. Newton strengthened into a hurricane on September 21. Hurricane Newton peaked at about 90 mph (145 km/h) and a minimum pressure of 984 millibars (29.1 inHg). On September 22, Newton slammed into Cabo San Lucas and moved inland into New Mexico. Newton dissipated on September 23. However, the remnants of Newton continued across the United States until September 26.[1]

Damage in Mexico was minor, with roofs being ripped off and high winds blowing down trees and utility poles. No injuries or fatalities were reported in association with Newton.[21][22] Across Kansas City 20,000 customers were without power.[23]

Hurricane Orlene

Category 1 hurricane (SSHWS)
 
DurationSeptember 21 – September 25
Peak intensity80 mph (130 km/h) (1-min);

A tropical disturbance was quasi-stationary for about 30 hours, when it strengthened into a tropical depression on September 21.[1] Despite a poorly defined circulation,[3] the cyclone intensified into Tropical Storm Orlene 12 hours after formation. Steadily gaining strength, Orlene reached hurricane intensity on September 22. Hours later, the hurricane entered the CPHC's area of responsibility as it moved past the 140°W border line.[1] While crossing over, satellite images showed a distinct eye developing. Shortly thereafter, Orlene gained a little more strength, peaking at 80 mph (130 km/h). After maintaining peak intensity for 24 hours, Orlene moved into area of strong wind shear. Subsequently, Orlene began to weaken rapidly and lost hurricane status at 1800 UTC September 23. The system weakened into a tropical depression on September 24 and dissipated the next day.[3]

Hurricane Paine

Category 2 hurricane (SSHWS)
 
DurationSeptember 28 – October 2
Peak intensity100 mph (155 km/h) (1-min);
Main article: Hurricane Paine (1986)

A tropical disturbance developed on September 27 within 250 mi (400 km) of the Mexican coastline.[1] The disturbance was upgraded into Tropical Depression Twenty-Three on 0000 UTC September 28. Tropical Depression Twenty-Three moved west-northwestward, lured poleward by an upper-level trough near northern Mexico. At 0000 UTC September 30, the depression became Tropical Storm Paine, southwest of Acapulco. Roughly 21 hours later, a NOAA Hurricane Hunter flight found winds of 90 mph (145 km/h), upgrading Paine into hurricane. Paine peaked as a Category 2 hurricane on October 1 as it turned northwest, headed towards the Sea of Cortez. Hurricane Paine did not intensify further due to the presence of mid-level wind shear and dry air.[1] The outer eyewall moved across Cabo San Lucas, and the resultant land interaction was believed to have slightly weakened the inner core of the hurricane.[24] Paine moved ashore near San José, Sonora with winds of 100 mph (160 km/h). Paine weakened as it moved over land going through Mexico and then entering the United States. Paine dissipated on October 4 over Lake Michigan.[1][25]

Rainfall from Paine was significant in Mexico and the United States. Light rain fell in Cabo San Lucas. Meanwhile, rains around the Mexican Mainland peaked at 12 in (300 mm) in Acapulco.[25] Near the area around where it made landfall, strong winds knocked down trees and caused disruptions to city services.[26] In the United States, rainfall peaked at 11.35 inches (288 mm) in Fort Scott, Kansas.[25] The Barnsdall, Oklahoma weather station recorded 10.42 inches (26.5 cm) on September 29, which became the highest daily precipitation for any station statewide. The flooding affected 52 counties in Oklahoma, which resulted in a total of $350 million in damage.[7] In all, Paine was described as one of the worst floods in Oklahoma history.[6] The remnants of Paine brought about the end of the extended period of rainfall, which overall had forced 55,000 people from their homes. Additional flooding from Paine resulted in about 1,200 people homeless in East Saint Louis, Illinois.[27] The flooding resulted in record discharge rates along many streams and creeks, while many reservoirs were nearly filled to capacity. For example, the Mississippi River in St. Louis reached the fifth highest flood stage on record.[28]

Hurricane Roslyn

Category 4 hurricane (SSHWS)
 
DurationOctober 15 – October 22
Peak intensity145 mph (230 km/h) (1-min);
Main article: Hurricane Roslyn (1986)

Tropical Depression Twenty-Four originated as a tropical disturbance which moved westward offshore Nicaragua. During the early afternoon of the next day, ship reports indicated the formation of a tropical depression close to land. The cyclone moved at a quick pace towards the west-northwest south of a warm-core ridge. Early on the morning on October 16, Roslyn became a tropical storm. By the morning of the October 17, Roslyn had developed into a hurricane south of Acapulco.[1] A vigorous upper trough was deepening offshore Baja California, and Roslyn began to re-curve within a few hundred miles of Manzanillo.[29] The system struck Mazatlán as a marginal hurricane on October 20.[1] The low-level center rapidly dissipated, although a frontal low developed in the western Gulf of Mexico, which moved over southeastern Texas and later through the Mississippi Valley. The original upper-level circulation maintained its northeast movement, bringing rainfall to the Southeastern United States.[29]

Affecting a sparsely-populated area, the highest reported winds from a land station were 44 mph (71 km/h). Roslyn produced some flooding, but no serious damage.[30] Impact was limited to flooded homes and factories, as well as some crop damage and beach erosion[1][31] and only one yacht sunk.[1] The remnants of Hurricane Roslyn produced heavy rainfall across the central and southern United States. In Matagorda, Texas, a total of 13.8 in (35 cm) was reported.[29]

Storm names

The following names were used for named storms that formed in the eastern Pacific in 1986. No names were retired, so it was used again in the 1992 season. This is the same list used for the 1980 season. Storms were named Paine and Roslyn for the first time in 1986, although Orlene had been used on the old four-year lists. No central Pacific names were used; the first name used would have been Oka. Names that were not assigned are marked in gray.[32]

  • Agatha
  • Blas
  • Celia
  • Darby
  • Estelle
  • Frank
  • Georgette
  • Howard
  • Isis
  • Javier
  • Kay
  • Lester
  • Madeline
  • Newton
  • Orlene
  • Paine
  • Roslyn
  • Seymour (unused)
  • Tina (unused)
  • Virgil (unused)
  • Winifred (unused)

See also

References

  1. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad ae af ag ah ai aj ak al am an ao ap aq ar as Gunther, Emil B. (1987). "Eastern North Pacific Tropical Cyclones of 1986". Monthly Weather Review. 115 (10): 2507–2523. doi:10.1175/1520-0493(1987)115<2507:ENPTCO>2.0.CO;2. {{cite journal}}: Unknown parameter |coauthor= ignored (|author= suggested) (help); Unknown parameter |month= ignored (help)
  2. ^ Dorst Neal. "When is hurricane season?". Atlantic Oceanographic and Meteorological Laboratory. Archived from the original on December 6, 2010. Retrieved November 25, 2010. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  3. ^ a b c d e f g h i j k l m "The 1986 Central Pacific Tropical Cyclone Season". Central Pacific Hurricane Center. 2007. Retrieved October 26, 2011.
  4. ^ a b c d e f g h i j National Hurricane Center; Hurricane Research Division; Central Pacific Hurricane Center (April 26, 2024). "The Northeast and North Central Pacific hurricane database 1949–2023". United States National Oceanic and Atmospheric Administration's National Weather Service. Archived from the original on May 29, 2024. A guide on how to read the database is available here. Public Domain This article incorporates text from this source, which is in the public domain.
  5. ^ Eric S. Blake, Ethan J. Gibney1, Daniel P. Brown, Michelle Mainelli, James L. Franklin and Todd B. Kimberlain National Hurricane Center. TROPICAL CYCLONES OF THE EASTERN NORTH PACIFIC BASIN, 1949-2006 (pdf). Asheville, North Carolina: National Hurricane Center, National Climatic Data Center. pp. 8, 78. Retrieved August 14, 2011. {{cite book}}: Unknown parameter |coauthors= ignored (|author= suggested) (help); Unknown parameter |month= ignored (help)CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)
  6. ^ a b "Floods Hit Tulsa Area". United Press International. October 6, 1986. p. 1. Retrieved February 11, 2010.
  7. ^ a b Howard Johnson (2003). "Oklahoma Weather History, Part 9 (September)". Oklahoma Climatological Survey. Retrieved February 2, 2010.
  8. ^ a b "Hurricane Estelle aims for Hawaii". The Milwaukee-Journal. July 22, 1986. p. 31. Retrieved September 11, 2011.
  9. ^ a b c David Roth (February 4, 2011). "Extended Best Track Database for CLIQR program". Hydrometeorological Prediction Center. Archived from the original on 18 May 2011. Retrieved April 27, 2011. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  10. ^ Todd Kimberlain (April 16, 2012). Re-analysis of the Eastern North Pacific HURDAT. American Meteorological Society. Retrieved June 27, 2012.
  11. ^ David Roth (July 19, 2007). "Hurricane Agatha – May 22–29, 1986". Hydrometeorological Prediction Center. Archived from the original on 18 May 2011. Retrieved April 27, 2011. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  12. ^ David Roth (July 16, 2007). "Tropical Depression #2E – May 27 – June 2, 1986". Hydrometeorological Prediction Center. Archived from the original on 18 May 2011. Retrieved April 27, 2011. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  13. ^ "Estelle forces evacuations". The Telegraph-Herald. July 22, 1986. p. 43. Retrieved September 11, 2011.
  14. ^ "Tropical Storm Enrique (06E)" (PDF). 1991 Annual Tropical Cyclone Report. Joint Typhoon Warning Center. pp. 70–1. Retrieved March 3, 2009.
  15. ^ Steve J. Fatjo. "Typhoons Georgette (11E) and Tip (10W)" (PDF). 1986 Annual Tropical Cyclone Report. Joint Typhoon Warning Center. pp. 58–66. Retrieved March 3, 2009.
  16. ^ a b Hydrometeorological Prediction Center (2009). "Tropical Storm Howard". Retrieved June 8, 2012.
  17. ^ "Big Waves for Chairman on Boards". L.A. Times. August 28, 1986.
  18. ^ "Hurricane Javier deteriorating 1,000 miles awa". L.A. Times. August 30, 1986.
  19. ^ "Surf's Up Just In Time For International Event". The Modest. August 30, 1986. p. 10. Retrieved October 16, 2011.
  20. ^ "Surf's Still Up". The Modest. August 31, 1986. p. 11. Retrieved October 16, 2011.
  21. ^ "Hurricane Newton rips across Mexico". Daily Herald. September 24, 1986. {{cite news}}: |access-date= requires |url= (help); Check date values in: |accessdate= (help)
  22. ^ "Pacific Hurricane hits northwest Pacific coast". Ocala Star-Banner. September 25, 1986. {{cite news}}: |access-date= requires |url= (help); Check date values in: |accessdate= (help)
  23. ^ "Winter rears it's ugly". Lodi News-Sentinel. September 25, 1986. p. 8. Retrieved August 29, 2011.
  24. ^ Sean K. Daida and Gary M. Barnes, University of Hawaii (2002). "Hurricane Paine (1986) Grazes the High Terrain of the Baja California Peninsula". American Meteorological Society. Retrieved June 27, 2012.
  25. ^ a b c David Roth (2007). "Hurricane Paine – September 26 – October 4, 1986". Hydrometeorological Prediction Center. Retrieved August 9, 2007.
  26. ^ "Hurricane Paine Sweeps Into Mexico". Akron Beach Journal. October 10, 1986.
  27. ^ "Flooding victims left homeless". Associated Press. September 29, 1986. p. 12. Retrieved October 23, 2011.
  28. ^ C.A. Perry, B.N. Aldridge, and H.C. Ross (2000). "Summary of Significant Floods in the United States, Puerto Rico, and the Virgin Islands, 1986". United States Geological Survey. Archived from the original on September 25, 2006. Retrieved February 8, 2010.{{cite web}}: CS1 maint: multiple names: authors list (link)
  29. ^ a b c David Roth (2007). "Hurricane Roslyn – October 18–26, 1986". Hydrometeorological Prediction Center. Retrieved August 9, 2007.
  30. ^ "Tropical Storm Roslyn Hits Mexican Coast". The Ledger Wire Services. October 23, 1986. p. 4. Retrieved February 13, 2010.
  31. ^ Yovani Montaño Law and Mario Gutiérrez-Estrada (1988). "Dynamics of Beaches Raft River Delta, Mexico". National Autonomous University of Mexico. Retrieved February 13, 210. {{cite web}}: Check date values in: |accessdate= (help)
  32. ^ "Eastern North Pacific Tropical Cyclone Name History". Atlantic Tropical Weather Center. Retrieved March 3, 2009.

External links

Template:1980-1989 Pacific hurricane seasons

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