Headline:
Flash Flood Warning issued August 6 at 1:40PM ChST until August 6 at 2:15PM ChST by NWS Tiyan GU
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
August 5, 2026 - 8:40pm
Expires:
August 5, 2026 - 9:15pm
Description:
FFWGUM
The National Weather Service in Tiyan has extended the
* Flash Flood Warning for...
Southern half of Guam...
* Until 215 PM ChST.
* At 140 PM ChST, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
2 and 4 inches of rain have fallen. Flash flooding is already
occurring.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar and automated gauges.
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, 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.
Area Description:
Guam, GU
Forcast Office:
NWS Tiyan GU
Sender:
w-nws.webmaster@noaa.gov