Short Term Forecast Issued, Thunderstorms Expected


Short Term Forecast Issued, Thunderstorms Expected

The National Weather Service (NWS), Weather Forecast Office Guam issued a short term forecast for Guam. Through 12:00 p.m., slow moving thunderstorms will bring heavy downpours and occasional lightning to much of Guam and Rota, as they move across the east/northeast. Areas with heavier showers could see up to an inch and a half of rain.

If driving, be alert for reduced visibilities and ponding of water along roadways. If you see lightning or hear thunder, seek shelter indoors.

Boaters can expect visibility down to a quarter of a mile with heavy rainfall. If thunder is heard or lightning is seen, boaters are advised to get below deck and avoid touching metal parts. For those near the shores, return to harbor until weather has improved.

A thunderstorm advisory is in effect for the Guam International Airport until 12:00 p.m. this afternoon. Thunderstorms are expected within 20 nautical miles of the airport. Be alert and take precautions as required.

The Offices of Guam Homeland Security and Civil Defense (GHS/OCD) advise 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 information:

·      NWS Website:

·      NWS Facebook:

·      GHS/OCD Website:

·      GHS/OCD Facebook:


For more information, contact Acting Public Information Officer Jaimie Cruz at (671) 688-0438 or via email at



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June 2018 is Typhoon Preparedness Month