Headline:
Flood Advisory issued September 19 at 12:43AM ChST until September 19 at 3:00AM ChST by NWS Tiyan GU
Event:
Flood Advisory
Urgency:
Expected
Effective:
September 18, 2026 - 7:43am
Expires:
September 18, 2026 - 10:00am
Description:
* WHAT...Urban area and small stream flooding caused by excessive
rainfall is expected.
* WHERE...Central and northern Guam...
* WHEN...Until 300 AM ChST.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Water over roadways possible. Rises in small streams.
* ADDITIONAL DETAILS...
- At 1242 AM ChST, Doppler radar indicated heavy rain due to
thunderstorms. This will cause urban and small stream flooding.
- Some locations that will experience flooding include...
Dededo, Tamuning, Yigo, Mangilao, Chalan Pago-Ordot, Barrigada,
Yona, Hagatna Heights, Andersen AFB, Mongmong- Toto-Maite,
Sinajana, Asan and Piti.
- http://www.weather.gov/safety/flood
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