Flash Flood Warning Now in Effect for Southern Guam; Practice Extreme Caution
The National Weather Service (NWS) Guam Weather Forecast Office issued a flash flood warning, in effect for Southern Guam until 2:15 p.m. Between 1.5 and 2 inches of rain has fallen. The expected rainfall rate is 1 to 2 inches per hour.
A flood advisory remains in effect until 3 p.m. this afternoon for Guam. Heavy rain and thunderstorms will cause urban and small stream flooding. Between 1 and 1.4 inches of rain have already fallen. Additional rainfall amounts of 1 to 2 inches are expected.
Residents and visitors are advised to take the following precautionary actions:
- Be aware of your surroundings and do not drive on flooded roads.
- If driving, be alert for low visibilities in heavy rain;
- Slow down where water is ponding on the road;
- Turn Around, Don’t Drown. Avoid walking or driving through flood waters. Just 6 inches of moving water can knock you down, and 2 feet of water can sweep your vehicle away;
- Do not camp, park, or hike along streams and rivers. These areas can flood quickly and with little warning.
A thunderstorm warning is in effect for the Guam International Airport Authority until 2 p.m. this afternoon. Thunderstorms are possible or occurring within 5 nautical miles of the airport. A thunderstorm advisory remains in effect for the Guam International Airport Authority until 5 p.m. this afternoon. Thunderstorms are possible or occurring within 20 nautical miles of the airport. Be alert and take precautions as necessary.
The Offices of Guam Homeland Security and Civil Defense (GHS/OCD) advise the community to practice extreme caution while traveling in heavy rain, driving below the speed limit and allowing enough braking distance between vehicles.
Visit the following links for the latest advisory information:
- NWS Website: https://www.weather.gov/gum/
- NWS Facebook: https://www.facebook.com/NWSGuam/
- GHS/OCD Website: https://ghs.guam.gov/
- GHS/OCD Facebook: https://www.facebook.com/GHSOCD/