American Samoa, 2008Flash Flood in American Samoa, December 8, 2008
December 8, 2008 · NWS ASO · 1 event in 1 county or zone
An active trough of low pressure developed northeast of the islands on the 3rd of Dec 2008 meandered over the islands for six days. Radiosonde data depicted an absolute unstable atmosphere for the islands during the period.
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- 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.
An active trough of low pressure developed northeast of the islands on the 3rd of Dec 2008 meandered over the islands for six days. Radiosonde data depicted an absolute unstable atmosphere for the islands during the period. Satellite images had shown substantial vertical development and numerous lows within the trough. The Pago Pago National Weather Service Office recorded 13.55 inches of rainfall total for this period. Furthermore, the Pago Pago NWS had issued small stream advisories for the islands during the period and a flash flood warning on the last day of the episode. The Department of Public Safety and the Department of the Public Works both reported roads inundated by the overflow of streams and major works due to drainage problems. No other major damages were reported.
Flash Flood, Tutuila
- When
- December 8, 3:30 AM SST to 1:00 PM SST
- Where
- Tutuila County, 10.4 mi WNW of Vaitogi to 4.09 mi E of Pago Pago
- Cause
- Heavy Rain
- Reported by
- Official NWS Observations
- Coordinates
- -14.332, -170.839
With a well saturated ground for the islands from the previous days, a slow moving trough poured 3.59 inches of rain over the islands on the 8th of December. The flash flood warning was issued by the Pago Pago NWS for ten hours. The flash flood from the slow moving trough over the islands produced heavy runoffs of streams and inundated low lying of the islands. The Department of the Public Works reported major drainage problems and roads reconstructions. The Department of Public Safety reported overflow of streams on roads and inundation of low lying areas during this short period of time. No other damages were reported.
- 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.
- Winter Weather in Illinois, December 8, 20081 death · 20 injured · 9 events
- Tornadoes and Hail in Texas, December 8 to 10, 20085 injured · $1.2 million · EF2 · 9 events
- Cold in Illinois, December 8, 20081 death · 1 event
- Winter Weather in Illinois, December 8, 20081 death · 1 event
- Hail in Arizona, December 8, 20081 death · 0.5 in hail · 1 event
- Winter Storm in Iowa, December 8 to 9, 2008$230,000 · 18 events
- Tornado and Hail in Oklahoma, December 8 to 9, 2008$61,000 · EF1 · 11 events
- High Wind in New Mexico, December 8, 20083 injured · $65,000 · 65 kt wind · 3 events
- High Wind in Texas, December 8, 2008$100,000 · 56 kt wind · 3 events
- Cold in Vermont, December 8, 200816 events
- Winter Weather in Iowa, December 8, 200816 events
- Winter Weather in South Dakota, December 8 to 9, 200815 events
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: 148606.