Guam Severe Flash Flood Warning | Effective 10/09/2026 17:41
FFWGUM
The National Weather Service in Tiyan has issued a
* Flash Flood Warning for...
Southwestern Guam...
* Until 1145 AM ChST.
* At 1041 AM ChST, Doppler radar and automated rain gauges indicated
heavy rain falling across the warned area. Between 2 and 4 inches
of rain have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by heavy rain.
SOURCE...Radar and automated gauges.
IMPACT...Flash flooding of small creeks and streams, urban areas,