Headline:
Flood Advisory issued September 20 at 11:09AM ChST until September 20 at 1:15PM ChST by NWS Tiyan GU
Event:
Flood Advisory
Urgency:
Expected
Effective:
September 19, 2026 - 6:09pm
Expires:
September 19, 2026 - 8:15pm
Description:
* WHAT...Urban area and small stream flooding caused by excessive
rainfall is expected.
* WHERE...Guam...
* WHEN...Until 115 PM ChST.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
* ADDITIONAL DETAILS...
- At 1107 AM ChST, Doppler radar indicated heavy rain due to
thunderstorms. This will cause urban and small stream flooding.
Between 0.5 and 0.8 inches of rain have fallen.
- Additional rainfall amounts of 1.5 to 3 inches are expected over
the area. This additional rain will result in minor flooding.
- Current heavy showers are over the southern and northern half of
Guam but are expected to expand across the island.
- http://www.weather.gov/safety/flood
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