1965 Pacific hurricane season

1965 Pacific hurricane season

All the storms of the season
Formation of the first storm	June 4, 1965
Dissolution of the last storm	September 27, 1965
Strongest storm	Emily - 980  hPa  ( mbar ), 80  kn  (150  km / h )
Tropical lows	10
Storms	10
Hurricanes	1
Severe hurricanes ( Cat. 3+ )	0
Total number of victims	6 total
Total damage	$ 10 million   (1965)
Pacific hurricane seasons 1963 , 1964 , 1965 , 1966 , 1967

The 1965 Pacific hurricane season officially began on May 15, 1965 in the Eastern Pacific Ocean and June 1, 1965 in the Central Pacific. It lasted until November 30, 1965. These dates conventionally limit the period of the year in which most tropical cyclones usually form in the northeastern Pacific . A total of ten systems were observed in the 1965 season, none of which reached hurricane strength with the exception of Hurricane Emily. The most significant storm of the season was Tropical Storm Hazel, as its impact killed six people in Mexico .

Storms

Tropical storm Victoria

Tropical storm
Duration	June 4th - June 7th
intensity	45 kn (85 km / h ) (1 minute)

The first tropical system of the season formed on June 4, 945 km southwest of Acapulco , Mexico, and was named Victoria a day later as it intensified into a tropical storm . At this point the storm reached its greatest intensity with sustained one-minute winds of 85 km / h. The storm maintained this strength as it moved northwest. Early on June 7, Victoria weakened to a tropical depression that resolved six hours later. Victoria stayed on the open sea throughout her existence.

Tropical storm Wallie

Tropical storm
Duration	June 17th - June 18th
intensity	45 kn (85 km / h ) (1 minute)

Early on the morning of June 17, a tropical depression formed 300 km west of Puerto Ángel , Mexico. This system intensified into a tropical storm with a continuous one-minute peak wind speed of 85 km / h. Wallie moved northwest and weakened to a low pressure area early on June 18 just off the Mexican coast. The remaining low moved across the Mexican coast near Zihuatanejo . In the further course of the day the system dissolved.

Although the storm damage in Mexico has been described as the largest within eight years and the property damage has been estimated at several thousand US dollars, the exact amount of the damage is not known. No deaths were reported in connection with the storm.

Tropical storm Ava

Tropical storm
Duration	June 29th - July 5th
intensity	45 kn (85 km / h ) (1 minute)

Early on June 29 , a tropical storm was identified about 860 km south of Cabo San Lucas on the southern tip of Baja California , Mexico. This was named Ava . At this point the storm was at its peak with wind speeds of 85 km / h, but within the next 24 hours the system weakened to a tropical depression. Late on June 30th, the storm regained tropical storm status. At this point Ava was moving westward, but deviated slightly north and later south. On July 3, Ava lost its intensity again. Early on July 5th, the low pressure area dissolved. Ava remained at sea throughout its existence so no property damage was reported.

Tropical Storm Bernice

Tropical storm
Duration	June 30th - July 8th
intensity	45 kn (85 km / h ) (1 minute)

On June 30th, tropical storm Bernice formed. At that time, the system was approximately 445 km south of Puerto Angel, Mexico. During the next few days the storm moved northeast and reached a top wind speed of 85 km / h. On June 5, the northward migration ended and Bernice turned east. On July 8th, the tropical storm broke up without ever reaching land.

Tropical storm Claudia

Tropical storm
Duration	August 7th - August 10th
intensity	45 kn (85 km / h ) (1 minute)

During the afternoon of August 7th, a tropical depression formed about 150 miles southwest of Cabo San Lucas. On August 8th, the system intensified into tropical storm Claudia. At the time when Claudia reached the greatest intensity with wind speeds of 85 km / h, the storm started to curve to the north. The storm maintained its peak strength during this curve movement until August 10th, when the wind speed decreased slightly and the storm warnings were discontinued. The storm had no impact on land.

Tropical storm Doreen

Tropical storm
Duration	August 21st - August 31st
intensity	45 kn (85 km / h ) (1 minute) , 975 hPa

The tropical storm Doreen was spotted on a TIROS satellite image for the first time on August 19. The next day the ship San Juan Prospector reported wind speeds of 40 knots (about 70 km / h) and an air pressure of 975 mbar (hPa). At this point, Doreen was pulling northwest at a forward speed of ten knots. On August 21, Doreen changed the direction of the train to a westerly course, but returned to the original direction a day later. On August 22nd, the Kyoyu Maru , which was directly north of the storm center, reported wind speeds of 60 knots. During the following days the storm made a slight curve to the north, but then slowed down and moved southwest. On August 30th, Doreen crossed into the central Pacific, where the storm broke up the next morning. While the system was in existence, 13 vessels reported wind data on Doreen, but no reports of property damage were recorded.

Hurricane Emily

Category 1 hurricane
Duration	August 30th - September 6th
intensity	80 kn (150 km / h ) (1 minute) , 980 hPa

A moderate tropical storm formed on August 30th. This gradually intensified and on August 31 at 12:00 UTC became the first and only hurricane of the 1965 hurricane season. Emily lost power on the way north. On September 3 at 00:00 UTC, Emily weakened to the tropical depression. The system hit Baja California at this intensity on September 6th. Emily was operationally considered to be the first storm in many years that posed a potential threat to Southern California . It was approaching the south of the state when the SEALAB-II project was carried out off La Jolla , California . Because of this , there were occasional fears that the Berkone , a support ship for the experiment, would have to leave the place due to the swell , was anchored at the SEALAB II and that the project would therefore have to be terminated. However, the rainfall from the storm was not excessive; they reached about 25 mm in individual areas.

Tropical storm Florence

Tropical storm
Duration	September 8th - September 15th
intensity	45 kn (85 km / h ) (1 minute)

Tropical Storm Florence formed as a tropical depression on September 8th. After 24 hours the system intensified into a tropical storm and was named Florence . This reached its greatest intensity at the time with wind speeds of 80 km / h. On September 11th, Florence suddenly weakened. After maintaining its intensity for a few days, the system was declared disbanded on September 15. Florence remained at sea and no damage to property or personal injury was reported in connection with the storm.

Tropical storm Glenda

Tropical storm
Duration	September 13th - September 22nd
intensity	45 kn (85 km / h ) (1 minute)

Tropical Storm Glenda formed on September 13 and maintained its intensity with sustained one-minute winds for nine days before the storm warnings ceased.

Tropical storm Hazel

Tropical storm
Duration	September 24th - September 27th
intensity	45 kn (85 km / h ) (1 minute)

Hazel developed from a northward moving fault originating southeast of Socorro Island . After Hazel reached the strength of a tropical storm, the storm turned east-northeast, which was confirmed by a ship's report. The storm landed near Mazatlán on September 26 and quickly became extra-tropical. Six people died as a result of the storm and thousands were left homeless. The Mazatlán shrimp fishing fleet, which accounts for a substantial part of the local economy, has been badly damaged. In the south of Sinaloa , more than 20,000 hectares of cropland for cotton , maize and sorghum were destroyed. At least 50 boats and smaller ships were lost or damaged in the ports. Property damage was estimated at $ 10 million (1965; today's prices $ 80.9 million). Hazel was the most momentous tropical cyclone of the Pacific hurricane season.

Time overview of the season

Accumulated Cyclone Energy (ACE)

ACE (10 4 kn 2 ) - storm
1	8.3025	Doreen		6th	2.2275	Florence
2	7.4925	Glenda		7th	1.8225	Victoria
3	6.2775	Bernice		8th	1.8225	Claudia
4th	4.96	Emily		9	1.62	Hazel
5	2.835	Ava		10	0.81	Wallie
Total: 40.17

The Accumulated Cyclone Energy (ACE) is a measure of the activity of a hurricane season. It is determined by squaring and adding up the continuous one-minute wind speed of a storm, provided that this wind speed corresponds at least to that of a tropical storm. This sum is then divided by 10 ⁴ . Tropical low pressure areas and subtropical systems are therefore not taken into account.

See also

• Atlantic hurricane season 1965
• 1965 Pacific typhoon season

supporting documents

1. ↑ ^{a b c d e f g h i j k l m} National Hurricane Center: Eastern Pacific hurricane best track analysis 1949-2014 ( English ) United States National Oceanic and Atmospheric Administration's Office of Oceanic & Atmospheric Research. October 15, 2015. Retrieved October 25, 2015.
2. ^ Central Pacific Hurricane Center Report on Tropical Storm Doreen . Central Pacific Hurricane Center . Retrieved November 11, 2009.
3. ↑ ^{a b} Pacific Hurricane Threatens Sealab Project (English) . In: The Miami News , September 1, 1965. Retrieved April 12, 2011. 
4. ↑ Jack Williams: California's Tropical Cyclones (English) , USA Today . May 17, 2005. Retrieved April 12, 2011. 
5. ↑ United States Weather Bureau: Climatological Data - National Summary ( English ) 1965, pp. 72–73 (accessed April 11, 2011).
6. ↑ Associated Press: Death Count Now 6 in Mazatlan Storm ( English ) In: Tucson Daily Citizen . 1965. Retrieved on June 21, 2009.  ( Page no longer available , search in web archives )
7. ↑ Associated Press: Storm Damage In Mexico May Exceed $ 10 Million . In: San Antonio Express . 1965. Retrieved on June 21, 2009.  ( Page no longer available , search in web archives )
8. ↑ Measuring total seasonal activity: The Accumulated Cyclone Energy (ACE) index ( English ) Climate Prediction Center . Archived from the original on June 19, 2012. Info: The archive link was automatically inserted and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved April 12, 2011.