Guam Minor Flood Advisory | Effective 07/09/2026 22:13

Headline: 
Flood Advisory issued July 10 at 3:13PM ChST until July 10 at 5:15PM ChST by NWS Tiyan GU
Event: 
Flood Advisory
Urgency: 
Expected
Effective: 
July 9, 2026 - 10:13pm
Expires: 
July 10, 2026 - 12:15am
Description: 
* WHAT...Urban area and small stream flooding caused by excessive rainfall is expected. * WHERE...South Central Guam...especially between Talofofo and Merizo. * WHEN...Until 515 PM ChST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Dangerous flows over low-water crossings. Water over roadways. Overflowing poor drainage areas. * ADDITIONAL DETAILS... - At 313 PM ChST, Doppler radar indicated heavy rain due to thunderstorms. This will cause urban and small stream flooding. Between 0.8 and 1.6 inches of rain have fallen. - Additional rainfall amounts of 0.8 to 2.2 inches are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Talofofo, Inarajan, Merizo and Umatac. - http://www.weather.gov/safety/flood
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. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route.
Area Description: 
Guam, GU
Forcast Office: 
NWS Tiyan GU
Sender: 
w-nws.webmaster@noaa.gov