Widespread showers due to a surface trough in the area caused flooded roadways, mudslides, and streams to overflow in some villages.
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.
Widespread showers due to a surface trough in the area caused flooded roadways, mudslides, and streams to overflow in some villages.
The national radar mosaic for the moment the first event began.
1 flash flood. Local standard time, as filed.
Several NWS employees reported flooded roadways in villages in the harbor area. Overflowing streams and debris on road from a mudslide in the village of Laulii caused a roadblock across both lanes.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in American Samoa in 2020Every state in 2020This day in weather historyWarnings in American Samoa, September 2020
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: 920097.