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Typhoon Louise (1945)

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Typhoon Louise (1945)

The decade of the 1940s featured the 1940–49 Pacific typhoon seasons. The seasons had no official bounds, but most tropical cyclones tend to form in the northwestern Pacific Ocean between June and December. These dates conventionally delimit the period of each year when most tropical cyclones form in the northwestern Pacific Ocean.

The scope of this article is limited to the Pacific Ocean, north of the equator and west of the international date line. Storms that form east of the date line and north of the equator are called hurricanes; see 1940–1948 Pacific hurricane seasons. Tropical storms formed in the entire west pacific basin were assigned a name by the Joint Typhoon Warning Center. Tropical depressions in this basin have the "W" suffix added to their number. Tropical depressions that enter or form in the Philippine area of responsibility are assigned a name by the Philippine Atmospheric, Geophysical and Astronomical Services Administration or PAGASA. This can often result in the same storm having two names.

Pacific Typhoon Seasons
1939 1940s 1950s



1940 Pacific typhoon season

In Guam, a November typhoon caused great damage. It was the strongest typhoon to hit Guam since 1918.[1][1]

1941 Pacific typhoon season

In August, a major typhoon brought a great amount of damage to Guam.[2]

1942 Pacific typhoon season

Typhoon Juliet formed and existed.

Nine tropical storms are reported in August, which made it the most active August known at the time.[3]

1943 Pacific typhoon season

There were 31 tropical storms, 9 of which became typhoons.[4]

1944 Pacific typhoon season

Main article: Typhoon Cobra (1944)

Typhoon Cobra was first spotted on December 17, in the Philippine Sea. It sank three US destroyers, killing at least 790 people, before dissipating the next day.

Maximum sustained winds were estimated at 145 MPH which would classify it as a Category 4 typhoon on the Saffir-Simpson Hurricane Scale.

1945 Pacific typhoon season

Tropical Storm Ann

Tropical storm (SSHS)
Duration April 19 – April 26
Peak intensity 95 km/h (60 mph) (1-min)  995 mbar (hPa)

Tropical Storm Betty

Tropical storm (SSHS)
Duration May 13 – May 16
Peak intensity 100 km/h (65 mph) (1-min)  994 mbar (hPa)

Typhoon Connie

Category 1 typhoon (SSHS)
Duration June 1 – June 7
Peak intensity 130 km/h (80 mph) (1-min)  980 mbar (hPa)

A small, yet powerful typhoon, Connie, was first spotted on June 1 by the Weather Central Guam, moving northeast. Winds were reported to have been as high as 140 mph. But by June 7, it began to weaken. Its final fate is unknown. The US Navy's Fifth Fleet (formerly Third Fleet) was hit by Connect. The same fleet had previously been hit, with great loss of life, by Typhoon Cobra, in 1944. Connie being lesser, only one officer and five USN men were lost or killed because of Connie, and around 150 airplanes on its carriers were either lost or damaged.

Tropical Storm Doris

Tropical storm (SSHS)
Duration June 18 – June 21
Peak intensity 85 km/h (50 mph) (1-min)  997 mbar (hPa)

Tropical Storm Nancy

Tropical storm (SSHS)
Duration July 3 – July 8
Peak intensity 95 km/h (60 mph) (1-min)  992 mbar (hPa)

Typhoon Opal

Category 1 typhoon (SSHS)
Duration July 14 – July 22
Peak intensity 120 km/h (75 mph) (1-min)  986 mbar (hPa)

Tropical Storm Peggy

Tropical storm (SSHS)
Duration July 22 – July 23
Peak intensity 65 km/h (40 mph) (1-min)  998 mbar (hPa)

Tropical Storm Edna

Tropical storm (SSHS)
Duration July 27 – July 29
Peak intensity 75 km/h (45 mph) (1-min)  995 mbar (hPa)

Typhoon Eva

Category 1 typhoon (SSHS)
Duration July 30 – August 4
Peak intensity 150 km/h (90 mph) (1-min)  978 mbar (hPa)

Typhoon Queenie

Category 1 typhoon (SSHS)
Duration August 5 – August 9
Peak intensity 150 km/h (90 mph) (1-min)  978 mbar (hPa)

Tropical Storm Frances

Tropical storm (SSHS)
Duration August 9 – August 13
Peak intensity 95 km/h (60 mph) (1-min)  992 mbar (hPa)

Tropical Storm Grace

Tropical storm (SSHS)
Duration August 15 – August 22
Peak intensity 110 km/h (70 mph) (1-min)  985 mbar (hPa)

Typhoon Ruth

Category 1 typhoon (SSHS)
Duration August 22 – August 28
Peak intensity 130 km/h (80 mph) (1-min)  978 mbar (hPa)

Typhoon Susan

Category 1 typhoon (SSHS)
Duration August 23 – August 28
Peak intensity 150 km/h (90 mph) (1-min)  968 mbar (hPa)

Typhoon Tess

Category 1 typhoon (SSHS)
Duration August 23 – August 25
Peak intensity 130 km/h (80 mph) (1-min)  980 mbar (hPa)

Typhoon Helen

Category 3 typhoon (SSHS)
Duration August 29 – September 4
Peak intensity 195 km/h (120 mph) (1-min)  965 mbar (hPa)

Typhoon Helen formed on August 29. It moved west-northwest and strengthened into a category 3 typhoon with 120 mph winds. It weakened slightly to a category two and struck Taiwan. It briefly was over waters before it hit China as a tropical storm. It dissipated on September 4.

Typhoon Ursula

Category 2 typhoon (SSHS)
Duration September 7 – September 14
Peak intensity 165 km/h (105 mph) (1-min)  968 mbar (hPa)

Typhoon Ida

Category 1 typhoon (SSHS)
Duration September 10 – September 20
Peak intensity 130 km/h (80 mph) (1-min)  969 mbar (hPa)

Tropical Storm Verna

Tropical storm (SSHS)
Duration September 20 – September 22
Peak intensity 95 km/h (60 mph) (1-min)  988 mbar (hPa)

Tropical Storm Wanda

Tropical storm (SSHS)
Duration September 21 – September 24
Peak intensity 75 km/h (45 mph) (1-min)  998 mbar (hPa)

Typhoon Jean

Category 2 typhoon (SSHS)
Duration September 25 – October 2
Peak intensity 165 km/h (105 mph) (1-min)  963 mbar (hPa)

Tropical Storm Kate

Tropical storm (SSHS)
Duration September 28 – October 6
Peak intensity 110 km/h (70 mph) (1-min)  980 mbar (hPa)

Typhoon Louise

Category 1 typhoon (SSHS)
Duration October 2 – October 12
Peak intensity 120 km/h (75 mph) (1-min)  974 mbar (hPa)

Louise was first seen developing on October 2, 1945 in the Caroline Islands. It unexpectedly veered north and slowed down, only to intensify as it passed over Okinawa on October 9 with 90 mph wind gusts and a minimum central pressure of 968.5 mbar. Shortly after, Louise began to weaken, and hit Japan as a strong tropical storm. The tropical cyclone became extratropical shortly after on October 12. In Okinawa, 36 people died, 47 people were reported missing, and 100 people were seriously injured. In Buckner Bay, the US military were occupying a temporary base. 30 ft (9.1 m)–35 ft (11 m) waves were reported to have crashed ashore, tearing into their Quonset huts and other building. The Bay was being used as port for the US military. Fifteen merchant cargo ships were grounded, with a few unrecoverable. 3 US Navy Destroyers were grounded beyond salvage, and over 200 various other US military boats, including 6 tank and truck amphibious landing craft, a number of special purpose boats, patrol boats, and amphibious landing craft were grounded or severely damaged, and beyond. Eighty percent of the buildings in the bay were completely wiped out while all 60 airplanes at the local airports were damaged.[5]

Tropical Storm Marge

Tropical storm (SSHS)
Duration November 1 – November 4
Peak intensity 85 km/h (50 mph) (1-min)  996 mbar (hPa)

Tropical Storm Yvonne

Tropical storm (SSHS)
Duration November 14 – November 17
Peak intensity 75 km/h (45 mph) (1-min)  999 mbar (hPa)

Typhoon Nora

Category 1 typhoon (SSHS)
Duration November 22 – November 29
Peak intensity 150 km/h (90 mph) (1-min)  971 mbar (hPa)

1945 storm names

  • Ann
  • Betty
  • Connie
  • Doris
  • Nancy
  • Opal
  • Peggy
  • Edna
  • Eva
  • Queenie
  • Frances
  • Grace
  • Ruth
  • Susan
  • Tess
  • Helen
  • Ursula
  • Ida
  • Verna
  • Wanda
  • Jean
  • Kate
  • Louise
  • Marge
  • Yvonne
  • Nora

1946 Pacific typhoon season

Typhoon Barbara

Category 3 typhoon (SSHS)
Duration March 27 – April 7
Peak intensity 185 km/h (115 mph) (1-min)  965 mbar (hPa)

Typhoon Barbara formed on March 27, and moved west. It strengthened briefly to a category three with 115 mph winds. But shortly after, it began to weaken. Typhoon Barbara curved northward and then westward, in turn hitting the Philippines as a category one. After making landfall, it curved back to the east and continued to weaken until April 7, when it dissipated.

Typhoon Charlotte

Category 1 typhoon (SSHS)
Duration May 11 – May 17
Peak intensity 150 km/h (90 mph) (1-min)  973 mbar (hPa)

Typhoon Dolly

Category 3 typhoon (SSHS)
Duration June 17 – June 23
Peak intensity 205 km/h (125 mph) (1-min)  942 mbar (hPa)

On June 17, Typhoon Dolly formed. It moved northwestward, only to strengthen. After passing by the Philippines, it reached its maximum intensity of 125 mph, a strong major hurricane. It rounded around Taiwan and made landfall on China's shoreline. It dissipated hours after on June 23.

Tropical Storm Elinor

Tropical storm (SSHS)
Duration June 23 – June 25
Peak intensity 95 km/h (60 mph) (1-min)  986 mbar (hPa)

Typhoon Ginny

Category 1 typhoon (SSHS)
Duration June 30 – July 2
Peak intensity 150 km/h (90 mph) (1-min)  971 mbar (hPa)

Typhoon Ingrid

Category 4 typhoon (SSHS)
Duration July 12 – July 20
Peak intensity 220 km/h (140 mph) (1-min)  944 mbar (hPa)

Tropical Storm Ingrid formed July 12, immediately moving west. After strengthening, it briefly became a category four on July 15. It weakened to a category two and struck the northern part of the Philippines. Ingrid retained its strength until it hit China. Right after it made landfall in China, it moved north and dissipated on July 20.

Typhoon Janie

Category 3 typhoon (SSHS)
Duration July 23 – July 31
Peak intensity 185 km/h (115 mph) (1-min)  946 mbar (hPa)

Janie formed on July 23. It moved northwest and then curved west. It was then that she became a major hurricane with 115 mph winds. After heading westward for a while, Janie began curving the opposite direction. But that was short-lived; it began moving northwest and struck southern Japan. Janie traveled over the island and dissipated near Russia's coast on July 31.

Typhoon Lilly

Category 4 typhoon (SSHS)
Duration August 10 – August 21
Peak intensity 230 km/h (145 mph) (1-min)  927 mbar (hPa)

On August 10, a disturbance managed to organize itself enough to be designated Tropical Storm Lilly. It moved in a generally northwest direction while intensifying at a moderate pace-becoming Typhoon Lilly shortly after its formation. Before Lilly moved over cold waters, it attained a peak intensity of 145 mph. It narrowly missed Japan's shoreline as a category two before striking Korea as a moderate tropical storm. Lilly dissipated on August 21, after eleven days of the traveling of the western Pacific Ocean.

Tropical Storm Maggie

Tropical storm (SSHS)
Duration August 22 – August 27
Peak intensity 110 km/h (70 mph) (1-min)  980 mbar (hPa)

Typhoon Opal

Category 3 typhoon (SSHS)
Duration September 7 – September 14
Peak intensity 185 km/h (115 mph) (1-min)  962 mbar (hPa)

Typhoon Priscilla

Category 3 typhoon (SSHS)
Duration September 8 – September 19
Peak intensity 185 km/h (115 mph) (1-min)  945 mbar (hPa)

Typhoon Querida

Category 4 typhoon (SSHS)
Duration September 18 – September 27
Peak intensity 220 km/h (140 mph) (1-min)  937 mbar (hPa)

Typhoon Alma

Category 4 typhoon (SSHS)
Duration October 18 – October 26
Peak intensity 220 km/h (140 mph) (1-min)  929 mbar (hPa)

Typhoon Betty

Category 4 typhoon (SSHS)
Duration November 5 – November 11
Peak intensity 220 km/h (140 mph) (1-min)  938 mbar (hPa)

Typhoon Dianne

Category 2 typhoon (SSHS)
Duration November 13 – November 20
Peak intensity 175 km/h (110 mph) (1-min)  968 mbar (hPa)

1946 storm names

  • Barbara
  • Charlotte
  • Dolly
  • Elinor
  • Ginny
  • Ingrid
  • Janie
  • Lilly
  • Maggie
  • Opal
  • Priscilla
  • Querida
  • Alma
  • Betty
  • Dianne

1947 Pacific typhoon season


Tropical Storm Anna

The Joint Typhoon Warning center (JTWC) best tracks [6] lists this system as 01W

Tropical storm (SSHS)
Duration March 19 – March 20
Peak intensity 65 km/h (40 mph) (1-min)  1001 mbar (hPa)

Unnamed Storm

The IBTrACSBest Tracks website[7] lists an unnamed system of unknown strength forming near 11.4N 111.0E. The system is tracked from May 10–11

Unnamed Storm

The IBTrACSBest Tracks website[8] lists an unnamed system of unknown strength forming near 9.6N 110.7E. The system is tracked from May 11–13

Typhoon Bernida

The Joint Typhoon Warning center (JTWC) best tracks[6] lists this system as 02W

Category 1 typhoon (SSHS)
Duration May 13 – May 17
Peak intensity 150 km/h (90 mph) (1-min)  972 mbar (hPa)

Unnamed Storm

The IBTrACSBest Tracks website[9] lists an unnamed system of unknown strength forming near 20.7N 1077E. The system is tracked from May 17–19

Typhoon Carol

Category 3 typhoon (SSHS)
Duration June 17 – June 23
Peak intensity 185 km/h (115 mph) (1-min)  960 mbar (hPa)

Carol formed east of the Philippines on June 17. It moved northwest. Carol skimmed right passed the most northern island as a 115 mph typhoon. After that, it began to weaken. Carol passed by Taiwan, and was about to hit mainland China, but it suddenly took a northeast track. Shortly thereafter, Carol dissipated on June 23.

The Joint Typhoon Warning center (JTWC) best tracks[10] lists this system as 03W

Tropical Storm Donna

The Joint Typhoon Warning center (JTWC) best tracks[11] lists this system as 04W

Tropical storm (SSHS)
Duration July 8 – July 9
Peak intensity 65 km/h (40 mph) (1-min)  999 mbar (hPa)

Tropical Storm Eileen

The Joint Typhoon Warning Center (JTWC) Best Tracks[12] lists this system as 05W

Tropical storm (SSHS)
Duration July 17 – July 19
Peak intensity 65 km/h (40 mph) (1-min)  993 mbar (hPa)

Tropical Storm Faith

Tropical storm (SSHS)
Duration July 26 – July 31
Peak intensity 95 km/h (60 mph) (1-min)  998 mbar (hPa)

Typhoon Gwen

Category 3 typhoon (SSHS)
Duration August 4 – August 9
Peak intensity 185 km/h (115 mph) (1-min)  950 mbar (hPa)

Typhoon Helena

Category 1 typhoon (SSHS)
Duration August 12 – August 14
Peak intensity 130 km/h (80 mph) (1-min)  983 mbar (hPa)

Typhoon Inez

Category 3 typhoon (SSHS)
Duration August 26 – August 31
Peak intensity 185 km/h (115 mph) (1-min)  960 mbar (hPa)

Tropical Storm Joyce

Tropical storm (SSHS)
Duration September 8 – September 10
Peak intensity 65 km/h (40 mph) (1-min)  1000 mbar (hPa)

Typhoon Kathleen

Category 2 typhoon (SSHS)
Duration September 10 – September 15
Peak intensity 165 km/h (105 mph) (1-min)  960 mbar (hPa)

Typhoon Kathleen struck the Boso Peninsula and the entire Kanto Region in Japan on September 15. Heavy rains caused the Arakawa and Tone Rivers to overflow. The resulting floods killed 1,077 people and left 853 people missing.[13][14]

Typhoon Laura

Category 2 typhoon (SSHS)
Duration September 14 – September 18
Peak intensity 165 km/h (105 mph) (1-min)  962 mbar (hPa)

Typhoon Mildred

Category 1 typhoon (SSHS)
Duration September 22 – September 25
Peak intensity 140 km/h (85 mph) (1-min)  985 mbar (hPa)

Typhoon Nanette

Category 2 typhoon (SSHS)
Duration September 29 – October 2
Peak intensity 165 km/h (105 mph) (1-min)  970 mbar (hPa)

Typhoon Olive

Category 3 typhoon (SSHS)
Duration October 2 – October 5
Peak intensity 205 km/h (125 mph) (1-min)  958 mbar (hPa)

Typhoon Pauline

Category 3 typhoon (SSHS)
Duration October 2 – October 8
Peak intensity 185 km/h (115 mph) (1-min)  958 mbar (hPa)

Super Typhoon Rosalind

Category 4 super typhoon (SSHS)
Duration October 6 – October 14
Peak intensity 240 km/h (150 mph) (1-min)  918 mbar (hPa)

This is the first super typhoon ever recorded.

Typhoon Alice

Category 4 typhoon (SSHS)
Duration October 13 – October 21
Peak intensity 220 km/h (140 mph) (1-min)  940 mbar (hPa)

Tropical Storm Beatrice

Tropical storm (SSHS)
Duration October 16 – October 21
Peak intensity 85 km/h (50 mph) (1-min)  991 mbar (hPa)

Typhoon Cathy

Category 3 typhoon (SSHS)
Duration October 29 – November 4
Peak intensity 185 km/h (115 mph) (1-min)  965 mbar (hPa)

Typhoon Dora

Category 3 typhoon (SSHS)
Duration November 2 – November 10
Peak intensity 185 km/h (115 mph) (1-min)  965 mbar (hPa)

Tropical Storm Elnora

Tropical storm (SSHS)
Duration November 10 – November 12
Peak intensity 95 km/h (60 mph) (1-min)  995 mbar (hPa)

Typhoon Flora

Category 3 typhoon (SSHS)
Duration November 13 – November 19
Peak intensity 185 km/h (115 mph) (1-min)  963 mbar (hPa)

Typhoon Gladys

Category 1 typhoon (SSHS)
Duration November 17 – November 22
Peak intensity 140 km/h (85 mph) (1-min)  987 mbar (hPa)

Typhoon Hannah

Category 3 typhoon (SSHS)
Duration November 22 – November 23
Peak intensity 185 km/h (115 mph) (1-min)  955 mbar (hPa)

Tropical Storm Irene

Tropical storm (SSHS)
Duration November 30 – December 3
Peak intensity 85 km/h (50 mph) (1-min)  1000 mbar (hPa)

Tropical Storm Irene formed on November 30 between the Philippine Islands. It strengthened to a tropical storm with 50 mph winds before it made landfall on one of the islands. It curved northeast and weakened to a tropical depression. But after exiting land, it restrengthened to a moderate tropical storm. But shortly thereafter, it became extratropical on December 3. The Japan Meteorological Agency analyzed it as a tropical depression, though it was actually a moderate tropical storm.

Typhoon Jean

Category 2 typhoon (SSHS)
Duration December 22 – December 29
Peak intensity 175 km/h (110 mph) (1-min)  973 mbar (hPa)

1947 storm names

  • Anna
  • Berneda
  • Carol
  • Donna
  • Eileen
  • Faith
  • Gwen
  • Helena
  • Inez
  • Joyce
  • Kathleen
  • Laura
  • Mildred
  • Nanette
  • Olive
  • Pauline
  • Rosalind
  • Alice
  • Beatrice
  • Cathy
  • Dora
  • Elnora
  • Flora
  • Gladys
  • Hannah
  • Irene
  • Jean

1948 Pacific typhoon season

Typhoon Karen, the strongest cyclone of the season, developed on January 11, well west of the Philippines. It curved westward while slowly intensifying. After a prolonged period of the slow intensification, the tropical cyclone began to rapidly strengthen. It became a super typhoon on January 16. Shortly after, it weakened and dissipated on January 19.

Ophelia formed on June 10 in the South China Sea. It moved west and struck southern China. It dissipated the next day, without attaining maximum sustained winds any higher than 45 mph.

Typhoon Ione struck Japan in mid-September killing 838 people.[15]

1948 storm names

  • Karen
  • Lana
  • Mabel
  • Nadine
  • Ophelia
  • Pearl
  • Rose
  • Annabell
  • Bertha
  • Chris
  • Dolores
  • Eunice
  • Flo
  • Gestrude
  • Hazel
  • Ione
  • Jackie
  • Kit
  • Libby
  • Martha
  • Norma
  • Olga
  • Pat
  • Rita
  • Agnes
  • Beverly

1949 Pacific typhoon season

Typhoon Della struck Japan in mid-June killing 468 people.[15]

In July, tropical storm Irma killed 1,600 people and destroyed more than 63,000 houses in Shanghai, China, the worst typhoon on record in the city.[16]

Typhoon Gloria struck Okinawa on July 23. Gloria killed 38 people and destroyed 42,502 buildings on the island. Typhoon Gloria then continued westward and struck Shanghai, China killing 29 people.[17]

Typhoon Kitty struck the Tokyo/Yokohama area August 31 through September 1, 1949. From reconnaissance reports the maximum sustained winds were near 110 knots 12 hours prior to landfall, but had fallen to minimum typhoon strength by the time it reached Honshū. The death toll reached 123 due to rainfall induced flooding and landslides (NY Times, 9/3/1949), and caused about 15 billion yen in damages. As its center passed near Tokyo, the JMA's Central Meteorological Office was able to launch eight rawindsondes in the typhoon environment. Researcher Dr. Hidedoshi Arakawa was able to analyize these soundings to make a vertical analysis of the storm.[18]

1949 storm names

  • Carmen
  • Della
  • Elaine
  • Faye
  • Gloria
  • Hester
  • Irma
  • Judith
  • Kitty
  • Lise
  • Madeline
  • Nelly
  • Omelia
  • Patricia
  • Rena
  • Allyn
  • Betty
  • Camilla

See also

Tropical cyclones portal
  • List of Pacific typhoon seasons


  • A film clip ]

External links


External links


zh:1946年太平洋颱風季 zh:1947年太平洋颱風季 zh:1948年太平洋颱風季 zh:1949年太平洋颱風季

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