Tropical Storm Moves Away from the Marianas; Heavy Rains Expected

Tropical Storm Moves Away from the Marianas; Heavy Rains Expected

The National Weather Service (NWS) Guam Weather Forecast Office advised the system they are monitoring, Tropical Storm Trami, continues to move away from the Marianas. As of 7 a.m., Tropical Storm Trami was 325 miles northwest of Guam, moving west-northwest with maximum sustained winds of 50 mph.

Although the tropical storm poses no direct threat to the Marianas as it moves away, an associated monsoon trough will keep gusty winds, showers
and thunderstorms through the Marianas.
flash flood watch remains in effect for Guam, Rota, Tinian, and Saipan through tonight. Showers will be heavy at times today and tonight with up to 3 inches of additional rainfall through tonight. Those living in areas prone to flooding should be prepared to take action:

·      Clear drainage areas and
un-block clogged storm drains in your area to minimize the chance of flooding
·      Residents living near rivers and streams need to review plans for protecting properties
·      Once heavy rains occur, 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
·      If there is a chance of flash flooding, move immediately to higher ground
·      If floodwaters rise around your car but the water is not moving, abandon the car and move to higher ground. Do not leave the car and enter moving water.
·      Avoid camping, parking, or hiking along streams, rivers, and creeks during heavy rainfall. These areas can flood quickly and with little warning.
·      Visit to learn more.

small craft advisory is in effect for Guam, Rota, Tinian, and Saipan coastal waters until 6 a.m. Sunday. South to southwest winds of 19 to 24 mph with gusts to 34 mph are expected for Guam. Southeast winds of 19 to 24 mph with frequent gusts to 34 mph are expected for Rota, Tinian
and Saipan. Combined seas of 6 to 9 feet will occasionally reach 10 feet across the Marianas waters. Inexperienced mariners, especially those operating smaller vessels, should avoid sailing in these conditions. 
GHS/OCD remind the community to stay up to date with the latest information. Practice caution if traveling in heavy rains and avoid the seas until hazardous conditions subside. 
Visit the following links for the latest advisory information:

·           NWS Website:
·           NWS Facebook:
·           GHS/OCD Website:
·           GHS/OCD Facebook:

For more information, contact GHS/OCD Public Information Officer, Jenna G. Blas at (671) 489-2540 or via email at



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June 2018 is Typhoon Preparedness Month