American Samoa, 2020Flash Flood and Heavy Rain in American Samoa, December 10 to 18, 2020
December 10 to 18, 2020 · NWS ASO · 2 events in 1 county or zone
The Active SPCZ, which formed Tropical Cyclone Zasu as well as YASA produced a week downpour of rain and strong winds for the Islands of American Samoa.
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
Open the live radar over this ground
- Deaths
- 0
- Injuries
- 0
- Property damage
- $120,000
- Crop damage
- $50,000
- Events
- 2
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.
The Active SPCZ, which formed Tropical Cyclone Zasu as well as YASA produced a week downpour of rain and strong winds for the Islands of American Samoa.
Heavy Rain, Tutuila
- When
- December 10, 7:00 PM SST to 8:00 PM SST
- Where
- Tutuila County, 6.02 mi W of Pago Pago
- Property damage
- $20,000
- Reported by
- Broadcast Media
- Coordinates
- -14.302, -170.690
Vehicle overturns under wet road conditions between the villages of Faganeanea and Matu'u.
Flash Flood, Tutuila
- When
- December 15, 12:00 AM SST to December 18, 11:00 PM SST
- Where
- Tutuila County, 7.05 mi NW of Vaitogi to 4.09 mi NNW of Vaitogi
- Cause
- Heavy Rain
- Property damage
- $100,000
- Crop damage
- $50,000
- Reported by
- Broadcast Media
- Coordinates
- -14.330, -170.776
After a week long weather event, WSO Pago Pago finally broke its annual rainfall record since 1981, standing near 165 inches of rain. The new record of 189.90 inches took place during this event. Multiple reports from around the Island of clogged drainages, formation of potholes, and business being affected for the Holidays were called in. Reports of flash flooding in low lying areas were mainly reported in the dense populated districts of Tualauta and Tualatai.
- Heavy Rain
- Rainfall totals unusual for the place and season that did not produce a flood.
- 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.
- Dense Fog in Montana, December 10 to 11, 20209 events
- Dense Fog in Montana, December 10 to 11, 20206 events
- Winter Weather in Colorado, December 10 to 11, 20204 events
- Heavy Snow in Colorado, December 10 to 12, 20202 events
- High Wind in Texas, December 10, 202050 kt wind · 1 event
- Winter Weather in Colorado, December 10 to 11, 20201 event
- Winter Weather in Kansas, December 10 to 11, 20201 event
- High Wind in California, December 10, 202050 kt wind · 1 event
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: 937316, 937317.