Guam Minor Flood Advisory | Effective 09/15/2026 07:20

Headline: 
Flood Advisory issued September 16 at 12:20AM ChST until September 16 at 3:15AM ChST by NWS Tiyan GU
Event: 
Flood Advisory
Urgency: 
Expected
Effective: 
September 15, 2026 - 7:20am
Expires: 
September 15, 2026 - 10:15am
Description: 
* WHAT...Urban area and small stream flooding caused by excessive rainfall is expected. * WHERE...Guam... * WHEN...Until 315 AM ChST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 1220 AM ChST, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Up to 0.2 inches of rain have fallen. - Additional rainfall amounts of 1 to 2 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Dededo, Tamuning, Yigo, Mangilao, Chalan Pago-Ordot, Barrigada, Yona, Hagatna Heights, Andersen AFB, Talofofo, Mongmong-Toto-Maite, Sinajana, Inarajan, Asan, Merizo, Piti, Santa Rita and Umatac. - http://www.weather.gov/safety/flood
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Area Description: 
Guam, GU
Forcast Office: 
NWS Tiyan GU
Sender: 
w-nws.webmaster@noaa.gov