Guam, Northern Mariana Islands Severe Flash Flood Warning | Effective 07/05/2026 20:48

Headline: 
Flash Flood Warning issued July 6 at 1:48PM ChST until July 6 at 4:15PM ChST by NWS Tiyan GU
Event: 
Flash Flood Warning
Urgency: 
Immediate
Effective: 
July 5, 2026 - 8:48pm
Expires: 
July 5, 2026 - 11:15pm
Description: 
FFWGUM The National Weather Service in Tiyan has extended the * Flash Flood Warning for... Guam... Rota... * Until 415 PM ChST. * At 148 PM ChST, satellite estimates indicate heavy rain across the warned area. Flash flooding is already occurring. HAZARD...Flash flooding caused by heavy rain. SOURCE...Satellite estimates. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, and streets as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Guam and Rota islands
Instruction: 
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. Stay away or be swept away. River banks and culverts can become unstable and unsafe.
Area Description: 
Guam, GU; Rota, MP
Forcast Office: 
NWS Tiyan GU