Active Weather Alerts
Airport Weather Warning
Issued: 2:48 AM Sep. 24, 2026 – National Weather Service
A Thunderstorm Advisory is in effect for the Guam International Airport until 245 pm this afternoon. Thunderstorms are possible within 20 nautical miles of the airport. Be alert and take precautions as required.
Flood Advisory
Issued: 2:43 AM Sep. 24, 2026 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL 245 PM CHST THIS AFTERNOON... * WHAT...Urban area and small stream flooding caused by excessive rainfall is expected. * WHERE...Guam... * WHEN...Until 245 PM ChST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Ponding of water in urban or other areas is occurring or is imminent. Rises in small streams. * ADDITIONAL DETAILS... - At 1241 PM ChST, satellite estimates and rain gauge data indicate heavy rain from showers, with thunderstorms possible, in the advisory area. This will cause urban and small stream flooding. - Additional rainfall amounts of 2 to 4 inches are expected over the area. This additional rain will result in minor flooding. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely. &&
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