An active surface trough over the Islands produced the following impacts for the territory: Flash flooding, gusty winds, and landslides.
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.
An active surface trough over the Islands produced the following impacts for the territory: Flash flooding, gusty winds, and landslides.
The national radar mosaic for the moment the first event began.
1 heavy rain. Local standard time, as filed.
A federal contractor on the Island of Ofu reported a landslide that blocked the west bound lane driving through the ofu pass. Rainfall recorded at the local weather station was 2.73 inches within the 24 hour period.
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, October 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 2026-10-01. Each event’s entry at NCEI: 991187.