Flash Flood in American Samoa, December 7 to 8, 2007

Name: Flash Flood in American Samoa, December 7 to 8, 2007
Start: 2007-12-07T14:00
End: 2007-12-08T04:00
Location: American Samoa

December 7 to 8, 2007 · NWS ASO · 1 event in 1 county or zone

A monsoon trough that extends all the way from the Solomon Islands southeastward to just south of the Samoa Group spread heavy rain and thunderstorms across the islands over the weekend.

Where it happened

Every event with a place to put it. Tap one for its entry below.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

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The toll

Deaths: 0
Injuries: 0
Property damage: $250,000
Crop damage: $250,000
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 monsoon trough that extends all the way from the Solomon Islands southeastward to just south of the Samoa Group spread heavy rain and thunderstorms across the islands over the weekend.

The radar

The national radar mosaic for the moment the first event began.

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Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, Tutuila

When: December 7, 2:00 PM SST to December 8, 4:00 AM SST
Where: Tutuila County, Pago Pago
Cause: Heavy Rain / Tropical System
Property damage: $250,000
Crop damage: $250,000
Reported by: Official NWS Observations
Coordinates: -14.300, -170.600

The heavy rain from an active monsoonal trough that had been nearly stationary just to the south of the islands caused widespread flooding across Tutuila. Flash Flooding was reported from the Malaeimi Valley to the Bay Area. Heavy showers and runoffs overflowed most streams from Faganeanea to Pago Pago and dumped lots of debris and rocks on the roads. The the X-Ray room and part of the Surgical Ward at the LBJ Medical Center was flooded as the jammed and clogged up Fagaalu stream force all the water and mud onto the hospital parking lot into part of the hospital. Forunately, the hospital had taken all necessary precautions avoiding a major disasters in protecting lives and properties. The National Weather Service had a Flash Flood Warning, which gave enough time for the public to prepare for the flooding.

What these are

Flash Flood: Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

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

The same day elsewhere

Every storm in American Samoa in 2007 Every state in 2007 This day in weather history Warnings in American Samoa, December 2007

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: 73241.