Typhoon Patsy

Pacific typhoon in 1970
Typhoon Patsy (Yoling)
Patsy with 110 mph winds on November 17
Meteorological history
FormedNovember 14, 1970
DissipatedNovember 22, 1970
Typhoon
10-minute sustained (JMA)
Highest winds150 km/h (90 mph)
Lowest pressure910 hPa (mbar); 26.87 inHg
Category 4-equivalent super typhoon
1-minute sustained (SSHWS/JTWC)
Highest winds250 km/h (155 mph)
Overall effects
Fatalities262+ direct
Damage$80 million (1970 USD)
Areas affectedPhilippines, Vietnam
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Part of the 1970 Pacific typhoon season

Typhoon Patsy, known in the Philippines as Typhoon Yoling,[1] was the twenty-seventh named storm, twelfth typhoon, and seventh super typhoon of the 1970 Pacific typhoon season.[2]

On November 14, 1970, a tropical disturbance organized sufficiently to be designated a tropical depression. A steady intensification carried Tropical Storm Patsy's windspeeds up to 155 mph (250 km/h) and a minimum pressure of 918 mbar. It made landfall in Luzon with sustained winds of 130 mph (210 km/h) on November 19.[3] After emerging in the South China Sea, Patsy remained at tropical storm strength. It struck Vietnam during the Vietnam War as a weak tropical storm on November 22. The 8-day-old cyclone dissipated shortly after its final landfall.

US$80 million ($403 million in 2005) in damage was reported to have been caused by Patsy, though the total was likely higher. Deaths were officially reported to be 241, but an estimated 30 people unofficially died in Vietnam, raising the toll to 271+. An additional 351 people were reported missing. The total deaths and damage will likely never be known, as the Vietnam War was raging at the same time.

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