Typhoon Kathy

Last updated
13+1⁄2 days, and the storm's circulation reached a radius of 1,370 kilometres (850 mi). [1] : 59 

Contents

Meteorological history

Map plotting the storm's track and intensity, according to the Saffir-Simpson scale .mw-parser-output .hidden-begin{box-sizing:border-box;width:100%;padding:5px;border:none;font-size:95%}.mw-parser-output .hidden-title{font-weight:bold;line-height:1.6;text-align:left}.mw-parser-output .hidden-content{text-align:left}@media all and (max-width:500px){.mw-parser-output .hidden-begin{width:auto!important;clear:none!important;float:none!important}} Map key Saffir-Simpson scale .mw-parser-output .div-col{margin-top:0.3em;column-width:30em}.mw-parser-output .div-col-small{font-size:90%}.mw-parser-output .div-col-rules{column-rule:1px solid #aaa}.mw-parser-output .div-col dl,.mw-parser-output .div-col ol,.mw-parser-output .div-col ul{margin-top:0}.mw-parser-output .div-col li,.mw-parser-output .div-col dd{page-break-inside:avoid;break-inside:avoid-column} .mw-parser-output .legend{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .legend-color{display:inline-block;min-width:1.25em;height:1.25em;line-height:1.25;margin:1px 0;text-align:center;border:1px solid black;background-color:transparent;color:black}.mw-parser-output .legend-text{} Tropical depression (<=38 mph, <=62 km/h) Tropical storm (39-73 mph, 63-118 km/h) Category 1 (74-95 mph, 119-153 km/h) Category 2 (96-110 mph, 154-177 km/h) Category 3 (111-129 mph, 178-208 km/h) Category 4 (130-156 mph, 209-251 km/h) Category 5 (>=157 mph, >=252 km/h) Unknown Storm type Tropical cyclone Subtropical cyclone Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression Kathy 1964 track.png
Map plotting the storm's track and intensity, according to the Saffir–Simpson scale
Map key
Saffir–Simpson scale
  Tropical depression (≤38 mph, ≤62 km/h)
  Tropical storm (39–73 mph, 63–118 km/h)
  Category 1 (74–95 mph, 119–153 km/h)
  Category 2 (96–110 mph, 154–177 km/h)
  Category 3 (111–129 mph, 178–208 km/h)
  Category 4 (130–156 mph, 209–251 km/h)
  Category 5 (≥157 mph, ≥252 km/h)
  Unknown
Storm type
ArrowUp.svg Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression

The interaction of a polar trough and easterly wave led to the genesis of an area of circulation southeast of Japan by August 11. [1] : 141  This system developed into a tropical storm, gaining the name Kathy the following day east of Iwo Jima based on ship observations. [2] [3] : 76  Maintaining a west-northwestward heading, Kathy reached typhoon strength on August 13, [2] passing well south of Tokyo on approach towards the Ryukyu Islands. [4] [5] The typhoon's winds peaked at 165 km/h (103 mph) on August 14 before tapering as the storm curved towards the west-southwest. [2] [3] : 76  For the next four days, Kathy and nearby Typhoon Marie began a Fujiwhara interaction, causing both storms to rotate around one another, ending when Marie was absorbed into Kathy's circulation. [1] : 50  Between August 15–16, Kathy briefly fell to tropical storm intensity before regaining typhoon status southeast of Amami Ōshima. [2] During this period, an airplane investigating the storm identified multiple wind circulations at the center of Kathy and the storm's clouds were asymmetric. [6] [1] : 146  The storm's west-southwest path brought the center across the Ryukyu Islands and near Okinawa on August 16 as Kathy began to execute a counterclockwise loop in its track. Two days later, Kathy's winds were estimated by the JTWC to be around 215 km/h (134 mph) near Minamidaitōjima. The typhoon's track made a smaller counterclockwise loop on August 20 before resuming north across the northern Ryukyu Islands. On August 23, Kathy made landfall on Kagoshima Prefecture with winds of 130 km/h (81 mph) and weakened to a tropical storm as it crossed the Seto Inland Sea and southern Honshu. It then curved to the northeast, briefly entering the Sea of Japan and crossing the Noto Peninsula before traversing northern Honshu and emerging into the northern Pacific. [2] [3] : 76  On August 25, Kathy transitioned into an extratropical cyclone and continued northeast towards the Aleutian Islands before it was last in the Bering Strait on September 1. [2] [3] : 76 

Preparations and impact

According to the publication Climatological Data, Kathy caused at least 13 deaths and "numerous" injuries, with landslides and flooding being the principal cause of the casualties; as much as 700 mm (28 in) of rain was documented in the mountainous regions of Kyushu, though cities averaged 100 m (3,900 in) in rainfall accumulations. [7] [3] : 76  United Press International reported as many as 24 fatalities and 8 missing persons associated with the typhoon, [8] [9] with the Associated Press documenting 28 injuries. [10] Over 4,000 people were rendered homeless. [10] Kathy's effects flooded almost 1,700 homes and destroyed 8 others in Amami Ōshima; winds there reached 138 km/h (86 mph). [11] [12] Sustained winds topped out at 126 km/h (78 mph) with a peak gust of 195 km/h (121 mph) on Yakushima. [13] As Kathy moved across southern and central Kyushu, damage was reported in Kagoshima, Kumamoto, Miyazaki, and Oita prefectures. Kathy's winds razed 44 houses and damaged 80 houses, with another 5,500 flooded by swollen rivers. Flooding broke through river embankments in 37 locations and washed away 18 bridges. Telecommunications and transportation services were disrupted with roads damaged in 400 locations. [14] [9] [15] There were at least 238 landslides caused by the typhoon, including one that derailed a passenger train in Oita Prefecture. [14] [16] One landslide in Kagoshima killed 11 people. [17] Two thousand homes were flooded farther north in Fukushima Prefecture. [18] The extratropical remnants of Kathy brought gale-force winds over the Bering Sea. [3] : 76 

See also

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References

  1. 1 2 3 4 Cassidy, Richard M., ed. (February 15, 1964). Annual Typhoon Report, 1964 (PDF) (Report). Annual Typhoon Report. Guam, Mariana Islands: Fleet Weather Central/Joint Typhoon Warning Center. Retrieved June 12, 2020.
  2. 1 2 3 4 5 6 "1964 Super Typhoon KATHY (1964224N25161)". IBTrACS - International Best Track Archive for Climate Stewardship. Asheville, North Carolina: University of North Carolina–Asheville. 2018. Retrieved June 25, 2020.
  3. 1 2 3 4 5 6 "Climatological Data: National Summary (Annual 1964)" (PDF). Climatological Data. 15 (13). Asheville, North Carolina: United States Weather Bureau. 1965. Archived from the original (PDF) on June 13, 2020. Retrieved June 12, 2020– via National Centers for Environmental Information.
  4. ↑ "Typhoon By-Passes Tokyo". The Indianapolis News. Indianapolis, Indiana. United Press International. August 15, 1964. p. 1. Retrieved June 25, 2020– via Newspapers.com.
  5. ↑ "Japan Area Has Strong Winds". Hawaii Tribune-Herald. Vol. 42, no. 226. Hilo, Hawaii. Associated Press. August 16, 1964. p. 1. Retrieved June 25, 2020– via Newspapers.com.
  6. ↑ Fett, Robert W. (September 1968). "Some Unusual Aspects Concerning the Development and Structure of Typhoon Billie—July 1967" (PDF). Monthly Weather Review. 96 (9). American Meteorological Society: 637–648. Bibcode:1968MWRv...96..637F. doi: 10.1175/1520-0493(1968)096<0637:SUACTD>2.0.CO;2 . Retrieved June 25, 2020.
  7. ↑ "Typhoon Hits Japan". The Brandon Sun. No. 183. Brandon, Manitoba. Associated Press. August 24, 1964. p. 1. Retrieved June 26, 2020– via Newspapers.com.
  8. ↑ "Typhoon Hits Jap Island". The Desert Sun. Vol. 38, no. 17. Palm Springs, California. United Press International. August 24, 1964. p. 2. Retrieved June 26, 2020– via Newspapers.com.
  9. 1 2 "Killer Typhoon Rakes Three Japan Islands". Honolulu Advertiser. No. 54497. Honolulu, Hawaii. United Press International. August 25, 1964. p. 7. Retrieved June 26, 2020– via Newspapers.com.
  10. 1 2 "Typhoon Now Tropical Storm". The Tampa Times. No. 172. Tampa, Florida. Associated Press. August 25, 1964. p. 6. Retrieved June 26, 2020– via Newspapers.com.
  11. ↑ "Typhoon Kathy Hits Isle South of Japan". Sacramento Bee. Vol. 215, no. 34913. Sacramento, California. Associated Press. August 22, 1964. p. 1. Retrieved June 25, 2020– via Newspapers.com.
  12. ↑ "95 m.p.h. Typhoon Races on Kysuhu". Oakland Tribune. Vol. 178, no. 236. Oakland, California. United Press International. August 23, 1964. p. 5. Retrieved June 26, 2020– via Newspapers.com.
  13. ↑ Proceedings of the Japan National Committee for Theoretical and Applied Mechanics, Volumes 17–18. Japan National Committee for Theoretical and Applied Mechanics. 1973. p. 79.
  14. 1 2 "Typhoon Kathy Hits Japan, Cause Extensive Damage". The Morning Call. No. 24160. Allentown, Pennsylvania. Associated Press. August 24, 1964. p. 21. Retrieved June 26, 2020– via Newspapers.com.
  15. ↑ "Typhoon Heading for Tokyo". The Sydney Morning Herald. No. 39527. Sydney, Australia. August 25, 1964. p. 3. Retrieved June 26, 2020– via Newspapers.com.
  16. ↑ "Typhoon Kathy Causes 7 Deaths In Japanese Island". Guam Daily News. Vol. 19, no. 206. Hagåtña, Guam. Associated Press. August 25, 1964. p. 1. Retrieved June 26, 2020– via Newspapers.com.
  17. ↑ "Typhoon Rips Japan; 28 Dead in Wake". The Muncie Star. Vol. 88, no. 119. Muncie, Indiana. United Press International. August 25, 1964. p. 5. Retrieved June 26, 2020– via Newspapers.com.
  18. ↑ "Typhoon Floods Thirsty Japan". The Daily Oklahoman. Vol. 73, no. 234. Oklahoma City, Oklahoma. Reuters. August 26, 1964. p. 2. Retrieved June 26, 2020– via Newspapers.com.
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Typhoon Kathy (Welpring)
Typhoon Kathy surface analysis 20 August 1964 0600z.png
Typhoon Kathy's surface analysis on August 20, 1964.