The 1965 Pacific hurricane season officially started May 15, 1965, in the eastern Pacific, and June 1, 1965, in the central Pacific, and lasted until November 30, 1965. These dates conventionally delimit the period of each year when most

tropical cyclone A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depend ...

s form in the northeast Pacific Ocean. A total of ten systems were observed. The most notable storm was Tropical Storm Hazel, which killed six people in

Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...

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Systems

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Hazel The hazel (''Corylus'') is a genus of deciduous trees and large shrubs native to the temperate Northern Hemisphere. The genus is usually placed in the birch family Betulaceae,Germplasmgobills Information Network''Corylus''Rushforth, K. (1999). ...

" bar:Month width:5 align:center fontsize:S shift:(0,-20) anchor:middle color:canvas from:01/06/1965 till:01/07/1965 text:June from:01/07/1965 till:01/08/1965 text:July from:01/08/1965 till:01/09/1965 text:August from:01/09/1965 till:01/10/1965 text:September TextData = pos:(570,30) text:"(From the" pos:(617,30) text:" Saffir–Simpson Hurricane Scale)"

Tropical Storm Victoria

On June 4, a tropical depression formed 585 miles (945 km) southwest of

Acapulco, Mexico Acapulco de Juárez (), commonly called Acapulco ( , also , nah, Acapolco), is a city and major seaport in the state of Guerrero on the Pacific Coast of Mexico, south of Mexico City. Acapulco is located on a deep, semicircular bay and has bee ...

Early the next day, the depression system intensified into the first tropical storm of the season and was named ''Victoria''. At that time, the storm was at its peak intensity of 50 mph (85 km/h) which it retained while moving the northwest. Early on June 7, the tropical storm weakened into a tropical depression before dissipating six hours later. In all, Tropical Storm Victoria stayed at sea.

Tropical Storm Wallie

Early on the morning of June 17, a tropical depression formed 185 miles (300 km/h) west of

Puerto Angel, Mexico Puerto, a Spanish word meaning ''seaport'', may refer to: Places *El Puerto de Santa María, Andalusia, Spain *Puerto, a seaport town in Cagayan de Oro City, Philippines *Puerto Colombia, Colombia *Puerto Cumarebo, Venezuela *Puerto Galera, Orient ...

. The depression strengthened into Tropical Storm Wallie. Meanwhile, Wallie was at its peak intensity of 50 mph (85 km/h). Wallie headed northwest and degenerated into an area of low pressure just off the Mexican coast early on June 18. The remnant low made landfall in the near

Zihuatanejo, Mexico Zihuatanejo (), or Ixtapa-Zihuatanejo, is the fourth-largest city in the Mexican state of Guerrero. It was known by 18th century English mariners as Chequetan or Seguataneo. Politically the city belongs to the municipality of Zihuatanejo de Azuet ...

early on June 18. The low dissipated later that day. Damage in Mexico from Wallie was described as the worst in eight years. Monetary damages were described was being in the "thousands", however an exact damage total is unknown. No deaths were reported due to the storm.

Tropical Storm Ava

Early on June 29, a tropical storm was identified 535 miles (860 km) south of

Cabo San Lucas, Mexico Cabo San Lucas (, "Saint Luke Cape"), or simply just Cabo, is a resort city at the southern tip of the Baja California Peninsula, in the Mexican state of Baja California Sur. As at the 2020 Census, the population of the city was 202,694 inhabitan ...

and named ''Ava''. At that time, the storm was at peak intensity of 50 mph (85 km/h). However, Tropical Storm Ava weakened into a tropical depression within 24 hours. Late on June 30, the depression re-strengthened into a tropical storm and regained peak intensity. At this time, the storm took a track that went north and back south gently. On July 3, Tropical Storm Ava weakened into a tropical depression. Ava dissipated early on July 5. The tropical storm stayed at sea, and no damage was reported.

Tropical Storm Bernice

On June 30, Tropical Storm Bernice formed. At this time, the system was located 275 miles (445 km) south of Puerto Angel, Mexico. For the next few days, the storm moved northeastward, while maintaining peak intensity of 50 mph (85 km/h). On July 5, Bernice stopped its northeastward motion and began to turn east, Berice dissipating on July 8, without ever impacting any land masses.

Tropical Storm Claudia

During the afternoon of August 7, a tropical depression formed 150 miles southwest of Cabo San Lucas, Mexico. On August 8, the cyclone strengthened into Tropical Storm Claudia. At that time, Claudia was reaching its peak intensity of 50 mph (85 km/h), while also beginning to recurve to the north. The storm remained at peak intensity while re-curving until August 10 when the wind speeds decreased slightly and advisories were discontinued. The storm never affected land.

Tropical Storm Doreen

Late on August 19, Tropical Storm Doreen was first located with a TIROS satellite image. The next day, a ship, the ''San Juan Prospector'' reported winds of 40 knots (45 mph, 70 km/h) and a pressure of 975 mbar (hPa). At this time, Doreen was moving to the northwest as 10 knots. On August 21, Doreen altered its course to the west, but reversed back to its original heading the next day. On August 22, the ship ''Kyoyu Maru'', which was just north of the storm's center reported winds of 60 knots (70 mph, 115 km/h). Over the next few days, the storm gently recurved northward but then slowed down and headed to the southwest. On August 30, Tropical Storm Doreen crossed the Central Pacific where it dissipated the next morning. During the course of the system, 13 ships reported winds related to Doreen, but no damage was reported.

Hurricane Emily

On August 30, a moderate tropical storm developed. It slowing intensified, becoming the first hurricane of this season at 1200 UTC August 31. Emily began to weaken while moving northward in the Eastern Pacific. On 0000 UTC time September 3, Emily weakened into a tropical depression. It hit Baja California at the same intensity on September 6. According to one source, Emily was the first potentially hazardous storm in many years to approach Southern California. It approached Southern California while the

SEALAB II SEALAB I, II, and III were experimental underwater habitats developed by the United States Navy in the 1960s to prove the viability of saturation diving and humans living in isolation for extended periods of time. The knowledge gained from the S ...

Project was underway at

La Jolla, California La Jolla ( , ) is a hilly, seaside neighborhood within the city of San Diego, California, United States, occupying of curving coastline along the Pacific Ocean. The population reported in the 2010 census was 46,781. La Jolla is surrounded on ...

. There was concern that waves from Emily would move the ''Berkone'', a support ship for SEALAB, away from the SEALAB site as the project would have to be halted. Rainfall totals reach 1 in (25 mm) in isolated areas.

Tropical Storm Florence

Tropical Storm Florence first formed on September 8 as a tropical depression. After 24 hours, Florence intensified into a tropical storm. At that time, the cyclone peaked with 50 mph (80 km/h) winds. However, on September 11, Florence suddenly weakened. After maintaining its intensity for a while, the depression was declared dissipated. Florence stayed at sea and no deaths or damage were reported.

Tropical Storm Glenda

Tropical Storm Glenda formed on September 13 and maintained the same intensity of 50 mph(85 km/h) for nine days before advisories were dropped.

Tropical Storm Hazel

Hazel developed from a northward-moving disturbance that originated southeast of

Socorro Island Socorro Island ( es, Isla Socorro) is a small volcanic island in the Revillagigedo Islands, a Mexican possession lying off the country's western coast. The size is 16.5 by 11.5 km (10.25 by 7.15 miles), with an area of . It is the largest ...

. After reaching tropical storm strength on the Saffir–Simpson hurricane scale, the cyclone turned to the east-northeast – a motion confirmed by a ship report. The storm made

landfall Landfall is the event of a storm moving over land after being over water. More broadly, and in relation to human travel, it refers to 'the first land that is reached or seen at the end of a journey across the sea or through the air, or the fact ...

near

Mazatlán Mazatlán () is a city in the Mexican state of Sinaloa. The city serves as the municipal seat for the surrounding ''municipio'', known as the Mazatlán Municipality. It is located at on the Pacific coast, across from the southernmost tip of ...

on September 26 and quickly became extratropical. Thousands more were left homeless. Mazatlán's shrimp fleet, which makes up the base of the city's economy, suffered major damage, while in southern Sinaloa, 55,000 acres of cotton,

corn Maize ( ; ''Zea mays'' subsp. ''mays'', from es, maíz after tnq, mahiz), also known as corn (North American and Australian English), is a cereal grain first domesticated by indigenous peoples in southern Mexico about 10,000 years ago. Th ...

, and

sorghum ''Sorghum'' () is a genus of about 25 species of flowering plants in the grass family (Poaceae). Some of these species are grown as cereals for human consumption and some in pastures for animals. One species is grown for grain, while many othe ...

were lost. At least 50 boats were damaged or sunk by the storm. The damage from the storm was estimated at $10 million (1965 USD) and possibly more, making Hazel the costliest tropical cyclone of the season.

Accumulated cyclone energy (ACE) rating

Accumulated cyclone energy Accumulated cyclone energy (ACE) is a metric used by various agencies to express the energy released by a tropical cyclone during its lifetime. It is calculating by summing the square of a tropical cyclone's maximum sustained winds, measured ever ...

(ACE) is a measure of the activity of a hurricane season. It is calculated by squaring the windspeed of a cyclone with at least tropical storm-force winds every six hours, summing the results, and dividing that total by 10⁴. As a tropical cyclone does not have gale-force winds until it becomes a tropical storm, tropical depressions are not included in these tables. For all storms, ACE is given to three

significant figures Significant figures (also known as the significant digits, ''precision'' or ''resolution'') of a number in positional notation are digits in the number that are reliable and necessary to indicate the quantity of something. If a number expre ...

. The ACE in the east Pacific proper ( 140°W to North America) is given; the ACE in the central Pacific (the

International Date Line The International Date Line (IDL) is an internationally accepted demarcation on the surface of Earth, running between the South and North Poles and serving as the boundary between one calendar day and the next. It passes through the Pacific O ...

to 140°W) is given in brackets.

Storm names

The following names were used for named storms that formed in the eastern Pacific in 1965. This is a part of list 2, which was used from

1960 It is also known as the "Year of Africa" because of major events—particularly the independence of seventeen African nations—that focused global attention on the continent and intensified feelings of Pan-Africanism. Events January * Ja ...

1965 Events January–February * January 14 – The Prime Minister of Northern Ireland and the Taoiseach of the Republic of Ireland meet for the first time in 43 years. * January 20 ** Lyndon B. Johnson is Second inauguration of Lyndo ...

. Names that were not assigned are marked in gray. The name Hazel was retired and replaced with Heather in

1969 This year is notable for Apollo 11's first landing on the moon. Events January * January 4 – The Government of Spain hands over Ifni to Morocco. * January 5 **Ariana Afghan Airlines Flight 701 crashes into a house on its approach to ...

References

{{DEFAULTSORT:1965 Pacific Hurricane Season Pacific hurricane seasons Articles which contain graphical timelines