Heavy Rainfall Possible the Next Few Days; Practice Caution on the Roadways


Heavy Rainfall Possible the Next Few Days; Practice Caution on the Roadways

The National Weather Service (NWS) Guam Weather Forecast Office advised heavy rain and thunderstorms will be possible today and over the next 2-3 days.

A flash flood warning is in effect for Guam until 12:15 p.m. Some locations that will experience flash flooding include mainly rural areas of Asan, Tamuning, Chalan Pago-Ordot, Talofofo, Yona, Santa Rita, Inarajan, Merizo, Ipan Buoy, Apra Harbor, Hagatna, Piti, Mongmong-Toto-Maite, Agat, Agana Heights, Dededo, Umatac, Barrigada, Sinajana, and Mangilao.

Residents and visitors are advised to take the following precautionary actions:
  • 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 and rivers. These areas can flood quickly and with little warning.

Strong thunderstorms, capable of producing winds to around 30 knots and dangerous lightning are located over southern Guam waters, posing a serious hazard for boaters. Practice caution.  

The Offices of Guam Homeland Security and Civil Defense (GHS/OCD) remind the community to practice 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:
For more information, contact GHS/OCD Public Information Officer Jenna G. Blas at (671) 489-2540 or via email at jenna.g.blas@ghs.guam.gov.



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June 2018 is Typhoon Preparedness Month