The National Weather Service (NWS) Guam Weather Forecast Office advised a developing monsoon pattern will bring periods of heavy rain across the Marianas the next few days. Torrential rains could lead to flash flooding in low-lying and poor-drainage areas.
A flash flood watch is in effect for Guam, Rota, Tinian, and Saipan through Thursday afternoon. Heavy showers and thunderstorms associated with the monsoon will affect a portion of the Marianas. Rainfall of 3 to 5 inches with locally heavier amounts are possible through Thursday.
Residents and visitors are advised to take the following precautionary actions:
- Clear drainage areas and unblock clogged storm drains in your area to minimize the chance of flooding.
- 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;
- Avoid camping, parking, or hiking along streams, rivers, and creeks during heavy rainfall. These areas can flood quickly and with little warning;
- Visit https://www.ready.gov/floods to learn more.
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 email@example.com.