National Weather Service United States Department of Commerce

More heavy rain and mountain snow in the Pacific Northwest on Saturday

Active weather will persist in the Pacific Northwest on Saturday. The hardest hit areas will likely be from the northern California coastline to eastern Washington as rainfall totals will range from 1 to 4 inches. In the higher elevations, precipitation will fall as snow with the some mountain peaks receiving up to a foot.
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Last Update: 343 AM CST SAT DEC 20 2014

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Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm

Marine Zone Forecast

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

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...

  • SynopsisA BROAD AREA OF LOW PRESSURE OVER THE NORTH-CENTRAL GULF OF MEXICO WILL CONTINUE TO MOVE EAST TODAY. HIGH PRESSURE WILL BUILD INTO THE NORTH GULF THROUGH SUNDAY. A STRONG COLD FRONT WILL BE APPROACHING THE NORTHWEST GULF MONDAY AND BRING AN INCREASE IN ONSHORE FLOW LATE MONDAY INTO TUESDAY. COLD FRONT BRINGS A WIND SHIFT AND COLD AIR INTO THE NORTH GULF LATE TUESDAY. GALE CONDITIONS MAY DEVELOP FOR A PERIOD OF TIME TUESDAY NIGHT INTO EARLY WEDNESDAY OVER PORTIONS OF THE COASTAL WATERS.
  • Today Northeast around 20 knots. Seas 2 to 4 feet dominant period 4 seconds. Slight chance of showers early in the morning.
  • Tonight Northeast winds 15 to 20 knots. Seas 2 to 4 feet dominant period 4 seconds. Chance of showers after midnight.
  • Sunday Northeast winds 15 to 20 knots. Seas 1 to 2 feet dominant period 3 seconds. Chance of showers.
  • Sunday Night East winds 10 to 15 knots becoming north 5 to 10 knots after midnight. Seas 1 to 2 feet dominant period 5 seconds. Chance of showers through the night.
  • Monday Northwest winds 5 to 10 knots becoming southwest in the late morning and afternoon. Seas 1 to 2 feet dominant period 6 seconds.
  • Monday Night South winds 15 to 20 knots. Seas 2 to 4 feet dominant period 6 seconds. Chance of showers through the night. Chance of thunderstorms after midnight.
  • Tuesday Southwest winds 20 to 25 knots. Seas 2 to 4 feet. Chance of showers and thunderstorms.
  • Tuesday Night Northwest winds 25 to 30 knots. Seas 4 to 7 feet with occasional seas to 8 feet building to 5 to 8 feet with occasional seas to 10 feet after midnight. Chance of thunderstorms in the evening. Chance of showers through the night.
  • Wednesday Northwest winds 20 to 25 knots. Seas 4 to 7 feet with occasional seas to 9 feet.
  • Wednesday Night Northwest winds 20 to 25 knots. Seas 5 to 8 feet with occasional seas to 9 feet subsiding to 3 to 6 feet with occasional seas to 6 feet after midnight.



Additional Forecasts and Information

Zone Area Forecast for Coastal Waters from Port Fourchon LA to Lower Atchafalaya River LA out 20 nm
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