Severe · Flash Flood WarningThis alert has expired. It is kept for reference.

Flash Flood Warning issued September 6 at 7:15PM ChST until September 6

Affecting Guam, GU

In effect until: Sep 6, 2026, 10:45 AM

Guam, GU

Likely impact in Guam, GU; effects through 10:45 AM.

Get to higher ground now. Never drive through flooded roads.

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FFWGUM

The National Weather Service in Tiyan has issued a

* Flash Flood Warning for...
Southwestern Guam...

* Until 845 PM ChST.

* At 715 PM ChST, Doppler radar indicated heavy showers, with the
potential for thunderstorms, producing heavy rain across the warned
area. Between 2 and 3 inches of rain have fallen. Additional
rainfall amounts of 1 to 3 inches are possible in the warned area.
Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by heavy showers and possible
thunderstorms.

SOURCE...Radar indicated.

IMPACT...Flash flooding of small creeks and streams, urban areas,
highways and streets, as well as other poor drainage and
low-lying areas.

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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™

Flash Flood Warning issued September 6 at 7:15PM ChST until September 6

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