The National Weather Service (NWS) Guam Weather Forecast Office has upgraded to a flash flood warning for Guam, in effect until 7:45 p.m. Flash flooding is ongoing or expected to begin shortly. Between 1.5 and 2 inches have already fallen. Additional rainfall amounts of 1 to 2 inches is possible.
Expected impacts include flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Some locations that will experience flash flooding include Dededo, Tamuning, Yigo, Mangilao, Chalan Pago-Ordot, Barrigada, Yona, Agana Heights, Andersen AFB, Talofofo, Mongmong-Toto-Maite, Sinajana, Inalahan, Asan, Merizo, Piti, Santa Rita, and Umatac.
Residents and visitors are advised to take the following precautionary actions:
- Report road hazards or flooding to local emergency services.
- If driving, be alert for low visibilities and slippery roads 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, rivers, and creeks during heavy rainfall. These areas can flood quickly and with little warning;
The Offices of Guam Homeland Security and Civil Defense (GHS/OCD) remind the community to practice extreme caution while traveling in rainy conditions, 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/
For more information, contact GHS/OCD Public Information Officer Jenna G. Blas at (671) 489-2540 or via email at firstname.lastname@example.org.