Headline:
Flash Flood Warning issued September 9 at 4:38PM ChST until September 9 at 6:00PM ChST by NWS Tiyan GU
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
September 8, 2026 - 11:38pm
Expires:
September 9, 2026 - 1:00am
Description:
FFWGUM
The National Weather Service in Tiyan has issued a
* Flash Flood Warning for...
Guam...
* Until 600 PM ChST.
* At 438 PM ChST, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 5 inches of rain
have fallen. Additional rainfall amounts of 1 to 2 inches are
possible in the warned area. Flash flooding is already occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar indicated.
IMPACT...Flash flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other poor
drainage and low-lying areas.
* Some locations that will experience flash 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.
Instruction:
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Be aware of your surroundings and do not drive on flooded roads.
Area Description:
Guam, GU
Forcast Office:
NWS Tiyan GU
Sender:
w-nws.webmaster@noaa.gov