Tropical Storm Lucille

Pacific tropical storm in 1960

Tropical Storm Lucille
Surface weather analysis of Lucille on May 30
Meteorological history
FormedMay 25, 1960
ExtratropicalJune 1
DissipatedJune 4, 1960
Unknown-strength storm
10-minute sustained (JMA)
Lowest pressure985 hPa (mbar); 29.09 inHg
Tropical storm
1-minute sustained (SSHWS/JTWC)
Highest winds85 km/h (50 mph)
Overall effects
Fatalities108 confirmed (300–500 estimated deaths)
Missing>150
Damage≥$2 million (1960 USD)
Areas affectedPhilippines, Iwo Jima, Chichi-jima
IBTrACSEdit this at Wikidata

Part of the 1960 Pacific typhoon season

Tropical Storm Lucille was the first tropical cyclone to have its name retired in the Western Pacific basin. Lucille was identified as a weak tropical depression on May 25, 1960, to the east of the Philippines. Tracking northwestward, the system failed to develop and warnings on it were discontinued on May 27. At the same time, a second system began organizing along the west coast of Luzon. The two systems ultimately merged into one over the Philippines between May 28 and 29. Now tracking northeastward, the system re-intensified and became a tropical storm on May 30. Lucille attained its peak intensity later that day with winds of 85 km/h (53 mph). As it accelerated over open waters, the system brushed the islands of Iwo Jima and Chichi-jima before transitioning into an extratropical cyclone on June 1. The remnants of Lucille were last noted on June 4 near the International Date Line.

Between May 27 and 29, heavy rains fell across much of Luzon as Lucille developed. These rains, amounting to 406 mm (16 in) in the suburbs of Manila, triggered destructive floods that left some areas under 4.6 m (15 ft) of water. The worst of the floods took place during the overnight hours of May 28 to 29. During that time, hundreds of homes were swept away and an estimated 300–500 people, including at least 80 children, were killed. Monetary losses from the floods exceeded $2 million.

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