National Weather Service United States Department of Commerce

Unseasonably cold temperatures spreading into central U.S.

A strong cold front will usher a much colder air mass into the central and eastern U.S. for the end of the work week. Temperatures will be 10 to 20 degrees below average in some areas. Rain and snow will be possible across the Great Lakes on Friday as the system crosses the area. Heavy snow is possible in the central Appalachians Friday night.
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Hazardous Weather Conditions

Last Update: 944 PM CDT THU OCT 30 2014

View Nearby Observations

Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River 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.


  • SynopsisHIGH PRESSURE WILL CONTINUE TO BUILD OVER THE AREA TONIGHT. A REINFORCING FRONT WILL PASS THROUGH THE REGION LATE FRIDAY WITH HIGH PRESSURE REMAINING OVER THE AREA THROUGH THE WEEKEND BEFORE SHIFTING EASTWARD EARLY NEXT WEEK.
  • Tonight North winds 10 to 15 knots. Seas 2 to 3 feet dominant period 3 seconds.
  • Friday North winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon. Seas 3 to 5 feet dominant period 3 seconds.
  • Friday Night North winds 20 to 25 knots. Seas 5 to 6 feet dominant period 4 seconds.
  • Saturday Northeast winds 20 to 25 knots. Seas 5 to 7 feet dominant period 4 seconds.
  • Saturday Night Northeast winds 10 to 15 knots. Seas 3 to 4 feet dominant period 3 seconds.
  • Sunday East winds 10 to 15 knots. Seas 2 to 4 feet dominant period 3 seconds.
  • Sunday Night East winds 10 to 15 knots. Seas 2 to 4 feet dominant period 3 seconds.
  • Monday East winds 15 to 20 knots. Seas 3 to 5 feet.
  • Monday Night Southeast winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas to 6 feet.
  • Tuesday Southeast winds 15 to 20 knots. Seas 3 to 5 feet. Slight chance of showers and thunderstorms.
  • Tuesday Night Southeast winds near 15 knots. Seas 3 to 5 feet. chance of showers and thunderstorms.



Additional Forecasts and Information

Zone Area Forecast for Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River Louisiana out 20 NM
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