American Samoa, 2009

High Wind in American Samoa, April 1 to 4, 2009

April 1 to 4, 2009 · NWS ASO · 1 event in 1 county or zone

A strong pressure gradient over the islands generated by an active monsoonal trough southwest of the islands and a streghtening ridge located northeast of the islands. Northwesterly winds of 30 to 35 kt with gust up to 50 kt were generated by the strong pressure gradient.

The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
1

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.

A strong pressure gradient over the islands generated by an active monsoonal trough southwest of the islands and a streghtening ridge located northeast of the islands. Northwesterly winds of 30 to 35 kt with gust up to 50 kt were generated by the strong pressure gradient. The episodes lasted for 4 days (1 April - 4 April). Several island farmers reported minor crop damages, for instance, bananas, cucumbers, taros, breadfruits and etc. The Department of Public Safety reported tree branches and other kinds of debris on the roads. No other damages were reported.

Event by event

1 high wind. Local standard time, as filed.

High Wind, Tutuila

When
April 1, 8:20 PM SST to April 4, 8:21 PM SST
Where
Tutuila forecast zone
Measured
50 kt (58 mph) estimated gust
Reported by
NWS Employee

What these are

High Wind
Sustained non-thunderstorm winds of 40 mph or more for an hour, or gusts of 58 mph or more.

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

The same day elsewhere

More

Every storm in American Samoa in 2009Every state in 2009This day in weather historyWarnings in American Samoa, April 2009

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: 162133.