1947 Pacific typhoon season | |
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Seasonal boundaries | |
First system formed | March 18, 1947 |
Last system dissipated | December 29, 1947 |
Strongest storm | |
Name | Rosalind |
• Maximum winds | 240 km/h (150 mph) (1-minute sustained) |
• Lowest pressure | 918 hPa (mbar) |
Seasonal statistics | |
Total storms | 27 |
Typhoons | 19 |
Super typhoons | 1 (unofficial) |
Total fatalities | 1,077 |
Total damage | Unknown |
Related articles | |
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.
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]
Tropical storm (SSHWS) | |
Duration | March 18 – March 20 |
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Peak intensity | 65 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 (668 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, but the U.S. Air Weather Service noted that the storm was of little significance.
Category 1 typhoon (SSHWS) | |
Duration | May 13 – May 17 |
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Peak intensity | 150 km/h (90 mph) (1-min); 972 hPa (mbar) |
The Joint Typhoon Warning center (JTWC) best tracks [3] lists this system as 02W
Category 3 typhoon (SSHWS) | |
Duration | June 17 – June 23 |
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Peak intensity | 185 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 [4] lists this system as 03W.
Tropical storm (SSHWS) | |
Duration | July 8 – July 9 |
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Peak intensity | 65 km/h (40 mph) (1-min); 999 hPa (mbar) |
The Joint Typhoon Warning center (JTWC) best tracks [5] lists this system as 04W
Tropical storm (SSHWS) | |
Duration | July 17 – July 19 |
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Peak intensity | 65 km/h (40 mph) (1-min); 993 hPa (mbar) |
The Joint Typhoon Warning Center (JTWC) Best Tracks [6] lists this system as 05W
Tropical storm (SSHWS) | |
Duration | July 26 – July 31 |
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Peak intensity | 95 km/h (60 mph) (1-min); 998 hPa (mbar) |
Category 3 typhoon (SSHWS) | |
Duration | August 4 – August 9 |
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Peak intensity | 185 km/h (115 mph) (1-min); 950 hPa (mbar) |
Category 1 typhoon (SSHWS) | |
Duration | August 12 – August 14 |
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Peak intensity | 130 km/h (80 mph) (1-min); 983 hPa (mbar) |
Category 3 typhoon (SSHWS) | |
Duration | August 26 – August 31 |
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Peak intensity | 185 km/h (115 mph) (1-min); 960 hPa (mbar) |
Tropical storm (SSHWS) | |
Duration | September 8 – September 10 |
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Peak intensity | 65 km/h (40 mph) (1-min); 1000 hPa (mbar) |
Category 2 typhoon (SSHWS) | |
Duration | September 10 – September 15 |
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Peak intensity | 165 km/h (105 mph) (1-min); 960 hPa (mbar) |
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. [7]
Category 2 typhoon (SSHWS) | |
Duration | September 14 – September 18 |
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Peak intensity | 165 km/h (105 mph) (1-min); 962 hPa (mbar) |
Category 1 typhoon (SSHWS) | |
Duration | September 22 – September 25 |
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Peak intensity | 140 km/h (85 mph) (1-min); 985 hPa (mbar) |
Category 2 typhoon (SSHWS) | |
Duration | September 29 – October 2 |
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Peak intensity | 165 km/h (105 mph) (1-min); 970 hPa (mbar) |
Category 3 typhoon (SSHWS) | |
Duration | October 2 – October 5 |
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Peak intensity | 205 km/h (125 mph) (1-min); 958 hPa (mbar) |
Category 3 typhoon (SSHWS) | |
Duration | October 2 – October 8 |
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Peak intensity | 185 km/h (115 mph) (1-min); 958 hPa (mbar) |
Category 4 super typhoon (SSHWS) | |
Duration | October 6 – October 14 |
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Peak intensity | 240 km/h (150 mph) (1-min); 918 hPa (mbar) |
The origins of Rosalind can be traced to a tropical storm that intensified into a category 2 on October 6. Rosalind continued to rapidly intensify from 964 to 918 mbar, reaching its peak intensity. After Rosalind reached its peak intensity, slight wind shear caused 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.
Category 4 typhoon (SSHWS) | |
Duration | October 13 – October 21 |
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Peak intensity | 220 km/h (140 mph) (1-min); 940 hPa (mbar) |
Tropical storm (SSHWS) | |
Duration | October 16 – October 21 |
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Peak intensity | 85 km/h (50 mph) (1-min); 991 hPa (mbar) |
Category 3 typhoon (SSHWS) | |
Duration | October 29 – November 4 |
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Peak intensity | 185 km/h (115 mph) (1-min); 965 hPa (mbar) |
Category 3 typhoon (SSHWS) | |
Duration | November 2 – November 10 |
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Peak intensity | 185 km/h (115 mph) (1-min); 965 hPa (mbar) |
Tropical storm (SSHWS) | |
Duration | November 10 – November 12 |
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Peak intensity | 95 km/h (60 mph) (1-min); 995 hPa (mbar) |
Category 3 typhoon (SSHWS) | |
Duration | November 13 – November 19 |
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Peak intensity | 185 km/h (115 mph) (1-min); 963 hPa (mbar) |
Category 1 typhoon (SSHWS) | |
Duration | November 17 – November 22 |
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Peak intensity | 140 km/h (85 mph) (1-min); 987 hPa (mbar) |
Category 3 typhoon (SSHWS) | |
Duration | November 22 – November 23 |
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Peak intensity | 185 km/h (115 mph) (1-min); 955 hPa (mbar) |
Tropical storm (SSHWS) | |
Duration | November 30 – December 3 |
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Peak intensity | 85 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.
Category 2 typhoon (SSHWS) | |
Duration | December 22 – December 29 |
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Peak intensity | 175 km/h (110 mph) (1-min); 973 hPa (mbar) |
Typhoon Jean struck Manila during the Christmas holidays after forming in the Philippine Sea, moving west-northwest and accelerating as it made 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 emerged 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 the Batanes group of islands and passed through the Bashi Channel south of Taiwan and continued north-eastward towards Miyakojima and the southern Japanese islands and eventually dissipated on 29 December. No data is available on what happened to the system after turning post-tropical.
The curved track of Typhoon Jean was somewhat similar to that of Typhoon Flora the month before. Because Typhoon Jean battered Manila during the Yuletide season, there were reports of Christmas decorations being strewn around the city. There were also reports of wind damage in the nearby suburb of Parañaque. It was the second recorded instance of a typhoon impacting the country during Christmas time, with the first being an unnamed typhoon in 1918, and the others being Typhoon Lee in 1981, Typhoon Nock-ten in 2016, and Typhoon Phanfone in 2019.
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The 2005 Pacific typhoon season was the least active typhoon season since 2000, producing 23 named storms, of which 13 became typhoons. It was an event in the annual cycle of tropical cyclone formation, in which tropical cyclones form in the western Pacific Ocean. The season ran throughout 2005, though most tropical cyclones typically develop between May and October. The season's first named storm, Kulap, developed on January 13, while the season's last named storm, Bolaven, dissipated on November 20. The season's first typhoon, Haitang, reached typhoon status on July 13, and became the first super typhoon of the year three days later.
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