Heavy rainfall with isolated thunderstorms and windy conditions triggered flash flooding across Tutuila and Manua. 60 inches of rainfall and maximum winds of 30 mph yet much higher near thunderstorms.
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Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS ASO wrote it up.
Heavy rainfall with isolated thunderstorms and windy conditions triggered flash flooding across Tutuila and Manua. The Weather Service Office recorded over 2.60 inches of rainfall and maximum winds of 30 mph yet much higher near thunderstorms.
The national radar mosaic for the moment the first event began.
1 heavy rain. Local standard time, as filed.
Heavy rainfall with isolated thunderstorms and windy conditions triggered flash flooding across Tutuila and Manua. The Weather Service Office recorded over 2.60 inches of rainfall and maximum winds of 30 mph yet much higher near thunderstorms.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in American Samoa in 2017Every state in 2017This day in weather historyWarnings in American Samoa, August 2017
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 720612.