Headline:
Flash Flood Warning issued September 19 at 8:49PM ChST until September 19 at 9:45PM ChST by NWS Tiyan GU
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
September 19, 2026 - 3:49am
Expires:
September 19, 2026 - 4:45am
Description:
FFWGUM
The National Weather Service in Tiyan has issued a
* Flash Flood Warning for...
Southwestern Guam...
* Until 945 PM ChST.
* At 849 PM ChST, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen in a short amount of time. Flash flooding is ongoing or
expected to begin shortly.
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...
Yona, Talofofo, Inarajan, Merizo, 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