A surface trough that lingered over the territory for 2 days produced flash flooding in low-lying areas.
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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.
A surface trough that lingered over the territory for 2 days produced flash flooding in low-lying areas.
The national radar mosaic for the moment the first event began.
1 flash flood. Local standard time, as filed.
The NWS recorded 4.00 inches of rain from August 7th to the 8th. This heavy rainfall event produced flash flooding in low lying areas across the territory.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in American Samoa in 2021Every state in 2021This day in weather historyWarnings in American Samoa, May 2021
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: 970577.