Typhoon Ida (1945)

Pacific typhoon in 1945
Typhoon Ida
Meteorological history
FormedSeptember 10, 1945
DissipatedSeptember 20, 1945
Category 1-equivalent typhoon
1-minute sustained (SSHWS)
Highest winds130 km/h (80 mph)
Lowest pressure917 hPa (mbar); 27.08 inHg
Overall effects
Fatalities2,473
Missing1,283
Areas affectedJapan, China, Russia Far East, Kuril Islands, Guam
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Part of the 1945 Pacific typhoon season

Typhoon Ida, known in Japan as Makurazaki Typhoon (枕崎台風),[1][2] was a powerful and very deadly typhoon which formed over the western Pacific Ocean and struck Japan in September 1945, shortly after the Japanese surrender in World War II, causing over 2,000 deaths. The storm struck parts of Kyushu and Ryukyu which had already been ravaged by the war and compounded the effects of the atomic bombing of Hiroshima, which had occurred only one month prior, resulting in further devastation to the already destroyed city. The typhoon likely had much higher wind speeds than were recorded at the time, with current estimates of the storm's minimum pressure as low as 917 millibars, though meteorologists are uncertain of the storm's true intensity. The typhoon remains one of the deadliest in Japanese history and is one of only a few storms to be known by a separate name in Japanese.

Meteorological history

Map plotting the storm's track and intensity, according to the 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
circle Tropical cyclone
square Subtropical cyclone
triangle Extratropical cyclone, remnant low, tropical disturbance, or monsoon depression