Headline:
Flood Advisory issued September 13 at 3:18PM ChST until September 13 at 6:15PM ChST by NWS Tiyan GU
Event:
Flood Advisory
Urgency:
Expected
Effective:
September 12, 2026 - 10:18pm
Expires:
September 13, 2026 - 1:15am
Description:
* WHAT...Urban area and small stream flooding caused by excessive
rainfall is expected.
* WHERE...Central Guam...
* WHEN...Until 615 PM ChST.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Water over roadways. Ponding of water in urban or other areas is
occurring or is imminent. Rises in small streams.
* ADDITIONAL DETAILS...
- At 316 PM ChST, Doppler radar indicated heavy rain with
thunderstorms possible. This will cause urban and small stream
flooding. Between 0.5 and 1.5 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...
Tamuning, Mangilao, Chalan Pago-Ordot, Barrigada, Yona, Hagatna
Heights, Mongmong-Toto-Maite, Sinajana, Asan, Piti and Santa
Rita.
- http://www.weather.gov/safety/flood
Instruction:
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Please report observed flooding to local emergency services or law
enforcement and request they pass this information to the National
Weather Service when you can do so safely.
Area Description:
Guam, GU
Forcast Office:
NWS Tiyan GU
Sender:
w-nws.webmaster@noaa.gov