Headline:
Flash Flood Warning issued October 17 at 7:28PM ChST until October 18 at 3:30AM ChST by NWS Tiyan GU
Event:
Flash Flood Warning
Urgency:
Immediate
Effective:
October 17, 2026 - 2:28am
Expires:
October 17, 2026 - 10:30am
Description:
FFWGUM
The National Weather Service in Tiyan has issued a
* Flash Flood Warning for...
Guam...
* Until 330 AM ChST Sunday.
* At 728 PM ChST, Doppler radar indicated heavy rain across the
warned area. Between 1 and 2 inches of rain have fallen and
torrential rain will continue through the night. Flash flooding is
ongoing or expected to begin shortly.
HAZARD...Flash flooding caused by heavy rain.
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 especially cautious at night when it is harder to recognize the
dangers of flooding.
Area Description:
Guam, GU
Forcast Office:
NWS Tiyan GU
Sender:
w-nws.webmaster@noaa.gov