National Weather Service United States Department of Commerce

Heavy rain and mountain snow across the northwestern U.S. this weekend

A Pacific storm system will continue to impact the West Coast through Sunday. Heavy rainfall could lead to flash flooding, river and small stream flooding, as well as mudslides and debris flows, especially over burn scars. At higher elevations, strong winds and heavy snowfall, with accumulations of 1 to 3 feet, could result in hazardous travel through mountain passes.
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Hazardous Weather Conditions

Last Update: 402 AM EST SUN DEC 21 2014

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Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM

Marine Zone Forecast

SEAS ARE PROVIDED AS A RANGE OF THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE SEAS...ALONG WITH THE OCCASIONAL HEIGHT OF THE AVERAGE HIGHEST 1/10 OF THE SEAS.

...SMALL CRAFT EXERCISE CAUTION...

  • SynopsisGRADIENT BETWEEN COASTAL ATLANTIC TROUGH AND SFC HIGH TO THE NORTH CONTINUES TO REMAIN TIGHT WHICH WILL ALLOW NORTHEASTERLY SURGE AND SCEC WINDSPEEDS TO PERSIST THROUGH THIS AFTERNOON MAINLY AFFECTING THE NEAR AND OFFSHORE ZONES FROM THE ATLAMAHA TO ST. AUGUSTINE. SEAS WILL ALSO REMAIN BETWEEN 4 TO 6 FEET IN THESE ZONES. WINDS AND SEAS WILL DECREASE AND SHIFT TO THE WEST TO SOUTHWEST ON SUNDAY NIGHT AS WARM FRONT PUSHES OVER THE WATERS FROM THE SOUTH. EXPECT WIDESPREAD RAINFALL WITH ISOLATED EMBEDDED THUNDERSTORMS SUNDAY EVENING THROUGH WEDNESDAY. WINDS AND SEAS WILL BEGIN TO INCREASE LATE TUESDAY AS COLD FRONT APPROACHES WITH GUSTS TO GALE FORCE POSSIBLE ON WEDNESDAY AS IT PASSES.
  • Today Northeast winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a moderate chop. Scattered showers and isolated thunderstorms in the afternoon.
  • Tonight Northeast winds 10 to 15 knots becoming southwest 10 knots after midnight. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a light chop. Scattered showers in the evening. Isolated thunderstorms. Showers after midnight.
  • Monday West winds 5 to 10 knots becoming north late in the afternoon. Seas 2 to 4 feet. Inland waters mostly smooth. Rain in the morning. Isolated thunderstorms. Showers likely in the afternoon.
  • Monday Night Light and variable winds becoming east 10 knots in the late evening. Seas 2 to 3 feet. Inland waters mostly smooth. Scattered showers and isolated thunderstorms.
  • Tuesday Southeast winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a light chop. Scattered showers and isolated thunderstorms.
  • Tuesday Night South winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a moderate chop. Scattered showers in the evening. Isolated thunderstorms. Numerous showers after midnight.
  • Wednesday Southwest winds 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters choppy. Showers and isolated thunderstorms.
  • Wednesday Night West winds 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters choppy. Scattered showers.
  • Thursday West winds 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a moderate chop.



Additional Forecasts and Information

Zone Area Forecast for Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM
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