American Samoa, 2017

Flash Flood in American Samoa, October 12 to 13, 2017

October 12 to 13, 2017 · NWS ASO · 1 event in 1 county or zone

Heavy rainfall associated with a surface trough generated flash flooding across American Samoa. The main road on Tutuila was flooded especially near locations with poor drainage outlets like Satala, Pago Pago, Utulei, and Tualauta District.

Where it happened

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  • 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
$7,000
Crop damage
$2,000
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.

Heavy rainfall associated with a surface trough generated flash flooding across American Samoa. The main road on Tutuila was flooded especially near locations with poor drainage outlets like Satala, Pago Pago, Utulei, and Tualauta District. The Weather Service Office received 3.88 inches of rainfall.

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
October 12, 6:50 PM SST to October 13, 7:00 AM SST
Where
Tutuila County, 9.57 mi WNW of Vaitogi to 77.24 mi WNW of Pago Pago
Cause
Heavy Rain
Property damage
$7,000
Crop damage
$2,000
Reported by
Official NWS Observations
Coordinates
-14.326, -170.821

Heavy rainfall associated with a surface trough generated flash flooding across American Samoa. The main road on Tutuila was heavily flooded especially near Satala, Pago Pago, Utulei, and Tualauta District. The Weather Service Office received 3.88 inches of rainfall.

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

More

Every storm in American Samoa in 2017Every state in 2017This day in weather historyWarnings in American Samoa, October 2017

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: 725743.