National Weather Service United States Department of Commerce

Developing storm will spread rain across eastern U.S.; thunderstorms in the Southeast

A storm system developing in the South will move up the Mississippi River Valley on Sunday bringing rainfall to much of the eastern U.S., along with thunderstorms in the southeastern states. Some of the thunderstorms in the Southeast could produce large hail, damaging wind and heavy rain.
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Last Update: 239 AM CST SUN NOV 23 2014

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Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana 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 THROUGH THIS AFTERNOON...

  • SynopsisA VIGOROUS STORM SYSTEM WILL SWEEP ACROSS THE LOWER MISSISSIPPI VALLEY WITH A DEEPENING SURFACE LOW TODAY. THE SURFACE LOW WILL QUICKLY MOVE NORTH TOWARDS THE GREAT LAKES AND A COLD FRONT WILL EVENTUALLY SWING THROUGH THE AREA MON.
  • Today Southwest winds 20 to 25 knots. Seas 5 to 8 feet with occasional seas to 10 feet dominant period 7 seconds. Showers in the morning. Thunderstorms until late afternoon. Chance of showers early in the afternoon.
  • Tonight Southwest winds 15 to 20 knots. Seas 4 to 7 feet with occasional seas to 9 feet dominant period 7 seconds.
  • Monday Northwest winds 10 to 15 knots. Seas 3 to 6 feet with occasional seas to 8 feet dominant period 7 seconds.
  • Monday Night North winds 15 to 20 knots. Seas 3 to 5 feet dominant period 5 seconds.
  • Tuesday North winds 15 to 20 knots. Seas 3 to 5 feet dominant period 4 seconds.
  • Tuesday Night North winds 15 to 20 knots. Seas 3 to 5 feet dominant period 4 seconds. Slight chance of showers.
  • Wednesday Northwest winds 10 to 15 knots. Seas 2 to 4 feet.
  • Wednesday Night Northwest winds 5 to 10 knots. Seas 1 to 2 feet.
  • Thursday Northwest winds 5 to 10 knots. Seas 1 foot or less.
  • Thursday Night Northeast winds 5 to 10 knots. Seas 1 foot or less.



Additional Forecasts and Information

Zone Area Forecast for Coastal waters from the Southwest Pass of the Mississippi River to Port Fourchon Louisiana out 20 NM
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