Heavy Rain Expected Through the Marianas; Avoid the Ocean and Drive with Caution

Heavy Rain Expected Through the Marianas; Avoid the Ocean and Drive with Caution

The National Weather Service (NWS) - Guam Weather Forecast Office continue to monitor Typhoon Cimaron, which is now about 45 northeast of Agrihan, 285 miles north of Saipan, and 410 miles north-northeast of Guam.
It continues to move northwest, with maximum sustained winds of 75 mph. It is expected to continue this generally northwest motion, tracking to pass north of Agrihan, Northern Mariana Islands today.  
The tropical storm warning has been canceled for Saipan and Tinian. Damaging winds are no longer expected for them. A typhoon warning remains in effect for Agrihan, Pagan, and Alamagan. Destructive winds of 74 mph or more are expecting or occurring for those Northern Mariana Islands.
There remains no watch or warning for Guam and Rota but a wet and windy monsoon flow will persist across the Marianas today.
small craft advisory is in effect for Guam and Rota coastal waters until 6 a.m. Wednesday. Winds of 19 t0 29 mph with gusts to 34 mph and waves of 9 to 12 feet are expected, producing conditions hazardous to small craft. Inexperienced mariners, especially those operating smaller vessels, should avoid sailing in these conditions.
high surf advisory and high risk of rip currents remains in effect for Guam, Rota, Tinian, and Saipan until 6 a.m. Wednesday. Surf between 9 and 12 feet will continue along west facing reefs of Guam and Rota along south west facing reefs of Tinian and Saipan, producing localized beach erosion and dangerous swimming conditions. There is a high risk of rip currents. If caught in a rip current, remain calm and yell for help. If swimming out of a rip current, swim parallel to shore and back toward the beach when possible. Do not attempt to swim directly against a rip current.
flash flood watch remains in effect for Guam, Rota, Tinian, and Saipan through Tuesday evening. Heavy rain is expected for the Marianas through Tuesday. Rainfall of 4 to 8 inches, with locally heavier amounts, is possible through Tuesday evening.
Those living in areas prone to flooding should be prepared to take action.  The following are basic flood safety tips to keep in mind:
  • Clear drainage areas and un-block clogged storm drains around your property.
  • 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 https://www.ready.gov/floods to learn more.

The Offices of Guam Homeland Security and Civil Defense remind the community to practice caution while traveling on the roadways this morning, allowing enough braking distance between cars. While driving, be alert for low visibilities in very heavy rain, and watch for local flooding of roads. Avoid the water until hazardous sea conditions subside.
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