American Samoa, 1999

Heavy Rain in American Samoa, February 26, 1999

February 26, 1999 · NWS ASO · 4 events in 4 counties and zones

Heavy showers with scattered thunderstorms were caused by an active trough of low pressure near the Samoan Islands. 30 inches, and this event had the most measurable rain for the month of February.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
4

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.

What happened

The episode as NWS ASO wrote it up.

Heavy showers with scattered thunderstorms were caused by an active trough of low pressure near the Samoan Islands. The total rain for this event was 4.30 inches, and this event had the most measurable rain for the month of February. The total precipitation recorded by WSO-Pago Pago for the month of February was 14.50 inches or 114% of normal.

Event by event

4 heavy rain. Local standard time, as filed.

Heavy Rain, Tutuila

When
February 26, 1:30 PM SST to 11:59 PM SST
Where
Tutuila County, Countywide
Reported by
OFFICIAL NWS OBS.

Heavy Rain, Manu'A

When
February 26, 1:30 PM SST to 11:59 PM SST
Where
Manu'A County, Countywide
Reported by
OFFICIAL NWS OBS.

Heavy Rain, Rose

When
February 26, 1:30 PM SST to 11:59 PM SST
Where
Rose County, Countywide
Reported by
OFFICIAL NWS OBS.

Heavy Rain, Swains

When
February 26, 1:30 PM SST to 11:59 PM SST
Where
Swains County, Countywide
Reported by
OFFICIAL NWS OBS.

What these are

Heavy Rain
Rainfall totals unusual for the place and season that did not produce a flood.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in American Samoa in 1999Every state in 1999This day in weather historyWarnings in American Samoa, February 1999

Sources

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: 5679566, 5679567, 5679688, 5679689.