1947 Pacific typhoon season

The 1947 Pacific typhoon season has no official bounds; it ran year-round in 1947, 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.

1947 Pacific typhoon season
Season summary map
Seasonal boundaries
First system formedMarch 18, 1947
Last system dissipatedDecember 29, 1947
Strongest storm
NameRosalind
 • Maximum winds240 km/h (150 mph)
(1-minute sustained)
 • Lowest pressure918 hPa (mbar)
Seasonal statistics
Total storms27
Typhoons19
Super typhoons1 (unofficial)
Total fatalitiesUnknown
Total damageUnknown
Related articles

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 1947 Pacific hurricane season. At the time, tropical storms that formed within this region of the western Pacific were identified and named by the United States Armed Services, and these names are taken from the list that USAS publicly adopted before the 1945 season started.[1][2]

Storms

Tropical Storm Anna
Tropical storm (SSHWS)
 
DurationMarch 18 – March 20
Peak intensity65 km/h (40 mph) (1-min)  1001 hPa (mbar)

Anna originated from a vigorous tropical wave that moved west along the ITCZ during the days of March 16 and 17. On March 18 an approaching cold front caused the wave to congeal into a tropical low pressure system while about 415 miles (670 km) to the east of Davao. The system rapidly organized into a tropical storm and continued west. Anna made landfall on Mindanao on March 20 as a tropical depression and weakened quickly thereafter.

Little data is available for this system, however, the U.S. Air Weather Service noted that the storm was of little significance.

Unnamed Storm

The IBTrACSBest Tracks website[3] 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[4] 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[5] lists this system as 02W

Category 1 typhoon (SSHWS)
 
DurationMay 13 – May 17
Peak intensity150 km/h (90 mph) (1-min)  972 hPa (mbar)

Unnamed Storm

The IBTrACSBest Tracks website[6] 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 (SSHWS)
 
DurationJune 17 – June 23
Peak intensity185 km/h (115 mph) (1-min)  960 hPa (mbar)

Carol formed east of the Philippines on June 17. It moved northwest and skimmed right past 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[7] lists this system as 03W.

Tropical Storm Donna

The Joint Typhoon Warning center (JTWC) best tracks[8] lists this system as 04W

Tropical storm (SSHWS)
 
DurationJuly 8 – July 9
Peak intensity65 km/h (40 mph) (1-min)  999 hPa (mbar)

Tropical Storm Eileen

The Joint Typhoon Warning Center (JTWC) Best Tracks[9] lists this system as 05W

Tropical storm (SSHWS)
 
DurationJuly 17 – July 19
Peak intensity65 km/h (40 mph) (1-min)  993 hPa (mbar)

Tropical Storm Faith
Tropical storm (SSHWS)
 
DurationJuly 26 – July 31
Peak intensity95 km/h (60 mph) (1-min)  998 hPa (mbar)

Typhoon Gwen
Category 3 typhoon (SSHWS)
 
DurationAugust 4 – August 9
Peak intensity185 km/h (115 mph) (1-min)  950 hPa (mbar)

Typhoon Helena
Category 1 typhoon (SSHWS)
 
DurationAugust 12 – August 14
Peak intensity130 km/h (80 mph) (1-min)  983 hPa (mbar)

Typhoon Inez
Category 3 typhoon (SSHWS)
 
DurationAugust 26 – August 31
Peak intensity185 km/h (115 mph) (1-min)  960 hPa (mbar)

Tropical Storm Joyce
Tropical storm (SSHWS)
 
DurationSeptember 8 – September 10
Peak intensity65 km/h (40 mph) (1-min)  1000 hPa (mbar)

Typhoon Kathleen
Category 2 typhoon (SSHWS)
 
DurationSeptember 10 – September 15
Peak intensity165 km/h (105 mph) (1-min)  960 hPa (mbar)
Main article: Typhoon Kathleen (1947)

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.[10]

Typhoon Laura
Category 2 typhoon (SSHWS)
 
DurationSeptember 14 – September 18
Peak intensity165 km/h (105 mph) (1-min)  962 hPa (mbar)

Typhoon Mildred
Category 1 typhoon (SSHWS)
 
DurationSeptember 22 – September 25
Peak intensity140 km/h (85 mph) (1-min)  985 hPa (mbar)

Typhoon Nanette
Category 2 typhoon (SSHWS)
 
DurationSeptember 29 – October 2
Peak intensity165 km/h (105 mph) (1-min)  970 hPa (mbar)

Typhoon Olive
Category 3 typhoon (SSHWS)
 
DurationOctober 2 – October 5
Peak intensity205 km/h (125 mph) (1-min)  958 hPa (mbar)

Typhoon Pauline
Category 3 typhoon (SSHWS)
 
DurationOctober 2 – October 8
Peak intensity185 km/h (115 mph) (1-min)  958 hPa (mbar)

Super Typhoon Rosalind
Category 4 super typhoon (SSHWS)
 
DurationOctober 6 – October 14
Peak intensity240 km/h (150 mph) (1-min)  918 hPa (mbar)

The origins of Rosalind can be track on a tropical storm that intensified into a category 2 on October 6 and named Rosalind. Therefore, Rosalind continued to rapidly intensify from 964 to 918 mbar, reaching its peak intensity. After Rosalind reaches its peak intensity, slight wind shear causes Rosalind to weaken on a category 2 on October 10. It intensified into a category 3 before it moved slowly. It weakened to a category 1 and tropical storm. Rosalind dissipated on October 14.

Rosalind was the first super typhoon ever recorded in the Pacific Ocean.

Typhoon Alice
Category 4 typhoon (SSHWS)
 
DurationOctober 13 – October 21
Peak intensity220 km/h (140 mph) (1-min)  940 hPa (mbar)

Tropical Storm Beatrice
Tropical storm (SSHWS)
 
DurationOctober 16 – October 21
Peak intensity85 km/h (50 mph) (1-min)  991 hPa (mbar)

Typhoon Cathy
Category 3 typhoon (SSHWS)
 
DurationOctober 29 – November 4
Peak intensity185 km/h (115 mph) (1-min)  965 hPa (mbar)

Typhoon Dora
Category 3 typhoon (SSHWS)
 
DurationNovember 2 – November 10
Peak intensity185 km/h (115 mph) (1-min)  965 hPa (mbar)

Tropical Storm Elnora
Tropical storm (SSHWS)
 
DurationNovember 10 – November 12
Peak intensity95 km/h (60 mph) (1-min)  995 hPa (mbar)

Typhoon Flora
Category 3 typhoon (SSHWS)
 
DurationNovember 13 – November 19
Peak intensity185 km/h (115 mph) (1-min)  963 hPa (mbar)

Typhoon Gladys
Category 1 typhoon (SSHWS)
 
DurationNovember 17 – November 22
Peak intensity140 km/h (85 mph) (1-min)  987 hPa (mbar)

Typhoon Hannah
Category 3 typhoon (SSHWS)
 
DurationNovember 22 – November 23
Peak intensity185 km/h (115 mph) (1-min)  955 hPa (mbar)

Tropical Storm Irene
Tropical storm (SSHWS)
 
DurationNovember 30 – December 3
Peak intensity85 km/h (50 mph) (1-min)  1000 hPa (mbar)

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 (SSHWS)
 
DurationDecember 22 – December 29
Peak intensity175 km/h (110 mph) (1-min)  973 hPa (mbar)

Typhoon Jean struck Manila during Christmas after forming in the Philippine sea moving West-northwest and accelerating as it makes landfall in the border area of Albay and Camarines sur. The storm continued its fast movement and track towards southern Manila. After passing Manila the storm emerges from the coast of Zambales towards the south china sea starting to shift more towards the northwest and eventually north and northeast. All the way moving parallel to the coast of Luzon. The typhoon weakened into a tropical storm and recurved west of Batanes island and passed through the Bashi channel south of Taiwan and continued north-eastward towards Miyakojima and the southern Japanese islands and eventually dissipating on the 29th of December. No data is available on what happened to the system after turning post-tropical. The curved track of Typhoon Jean is somewhat similar to that of Typhoon Flora the month before. Because Typhoon Jean battered Manila during Christmas there were reports of Christmas decorations being strewn around the city. There were also reports of wind damage in Parañaque city. It was the first recorded incident of typhoons impacting the country at the time of Christmas with the others being Typhoon Lee in 1981, Typhoon Nock-Ten in 2016, an unnamed typhoon in 1918, and Typhoon Phanfone in 2019.

Storm names
  • Anna
  • Bernida
  • 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

See also

References
  1. Landsea, Christopher W; Dorst, Neal M (June 1, 2014). "Subject: Tropical Cyclone Names: B1) How are tropical cyclones named?". Tropical Cyclone Frequently Asked Question. United States National Oceanic and Atmospheric Administration's Hurricane Research Division. Archived from the original on March 29, 2015.
  2. Cry, George (July 1958). Bristow, Gerald C (ed.). "Naming hurricanes and typhoons". Mariners Weather Log. 2 (4): 109. hdl:2027/uc1.b3876059. ISSN 0025-3367. OCLC 648466886.
  3. http://www.atms.unca.edu/ibtracs/ibtracs_current/index.php?name=v04r00-1947131N11111
  4. http://www.atms.unca.edu/ibtracs/ibtracs_current/index.php?name=v04r00-1947132N10111
  5. http://www.usno.navy.mil/NOOC/nmfc-ph/RSS/jtwc/best_tracks/1947/1947s-bwp/
  6. http://www.atms.unca.edu/ibtracs/ibtracs_current/index.php?name=v04r00-1947137N21108
  7. http://www.usno.navy.mil/NOOC/nmfc-ph/RSS/jtwc/best_tracks/1947/1947s-bwp/bwp031947.txt
  8. http://www.usno.navy.mil/NOOC/nmfc-ph/RSS/jtwc/best_tracks/1947/1947s-bwp/bwp041947.txt
  9. http://www.usno.navy.mil/NOOC/nmfc-ph/RSS/jtwc/best_tracks/1947/1947s-bwp/bwp051947.txt
  10. "Arajo.ktr.mlit.go.jp".


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