37 inches of rainfall. Heavy downpour between the hours of 11 am and 2 pm generated flash flooding, whereas the main road and low-lying areas were surrounded by water and debris.
Every event with a place to put it. Tap one for its entry below.
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.
A surface trough triggered numerous showers with locally heavy rainfall over American Samoa, and the Weather Service Office recorded 2.37 inches of rainfall. Heavy downpour between the hours of 11 am and 2 pm generated flash flooding, whereas the main road and low-lying areas were surrounded by water and debris. No injuries or fatalities reported.
The national radar mosaic for the moment the first event began.
1 heavy rain. Local standard time, as filed.
A surface trough near the Samoan region generated numerous showers with locally heavy rainfall. This rainfall event triggered flash flooding across American Samoa, and the Weather Service Office recorded 2.37 inches. No injury or fatalities reported.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in American Samoa in 2016Every state in 2016This day in weather historyWarnings in American Samoa, May 2016
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: 640542.