National Weather Service United States Department of Commerce

Cold Front Crossing the Central U.S.

A cold front over the Northern Rockies will move eastward to the Upper Mississippi Valley/Central Plains by Monday. Rain will develop along the boundary over the Upper Midwest and move into the Upper Great Lakes by Monday. Some of the thunderstorms could become severe in portions of Texas through Monday.
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Last Update: 200 PM CHST SUN APR 20 2014

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Guam Coastal Waters

Marine Zone Forecast





  • SynopsisA TROUGH OF LOW PRESSURE OVER THE PHILIPPINE SEA COULD PRODUCE A STRAY THUNDERSTORM TONIGHT. COMBINED SEAS OF 5 TO 7 FEET AND MODERATE TO FRESH WINDS WILL PREVAIL THROUGH FRIDAY.
  • Tonight Southeast wind 10 to 15 kt. Wind waves 2 to 3 ft. East swell 3 to 5 ft. Slight chance of thunderstorms.
  • Monday And Monday Night East wind 10 to 15 kt. Wind waves 2 to 3 ft. East swell 3 to 5 ft.
  • Tuesday Through Friday East wind 15 to 20 kt. Wind waves 3 to 4 ft. East swell 4 to 6 ft.



Additional Forecasts and Information

Zone Area Forecast for Guam Coastal Waters