Synoptic: A cold front moving across the islands, prompting Flash Flood Watch Saturday, September 29th through Tuesday, October 2nd.
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.
Synoptic: A cold front moving across the islands, prompting Flash Flood Watch Saturday, September 29th through Tuesday, October 2nd.
The national radar mosaic for the moment the first event began.
1 flash flood, 1 heavy rain. Local standard time, as filed.
Frontal passage prompted a flash flood watch that was upgraded to Flash Flood Warning. Numerous reports received from residents around the island of flooded roadways. The NWS Office recorded 1.85 on the morning of the 30th.
Landslide/Mudslide reported at Faga'alu Village due to continuous heavy rainfall. A Flash Flood Warning was in effect during the time of this report at 9:50 AM SST.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in American Samoa in 2018Every state in 2018This day in weather historyWarnings in American Samoa, September 2018
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: 808605, 808607.