Arctic Air Plunges into the Great Lakes, Northeast and Mid-Atlantic

Arctic air dropping through the northern and eastern U.S. and a storm off the east coast will bring periods of snow, very cold wind chills and hazardous traveling conditions from the Upper Great Lakes to the Northeast. Meanwhile in southern California, Santa Ana winds will decrease but hot, dry air will remain over the area with elevated fire weather conditions.
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Coastal Waters Forecast for Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM (GMZ570) (Text-Only)
NWS Forecast for: Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM (GMZ570)
Issued by: National Weather Service New Orleans/Baton Rouge, LA
Last Update: 325 PM CST Wed Dec 13 2017
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Tonight: West winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds.

Thursday: West winds 5 to 10 knots. Seas 1 to 2 feet. Dominant period 4 seconds.

Thursday Night: Northwest winds 10 to 15 knots. Seas 1 to 2 feet. Dominant period 4 seconds. Chance of showers.

Friday: North winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Dominant period 4 seconds. Chance of showers.

Friday Night: Northeast winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Dominant period 5 seconds.

Saturday: East winds 15 to 20 knots. Seas 2 to 4 feet. Dominant period 4 seconds. Slight chance of showers in the afternoon.

Saturday Night: Southeast winds 20 to 25 knots. Seas 3 to 5 feet. Dominant period 5 seconds. Seas building to 3 to 6 feet with occasional seas to 8 feet after midnight. Chance of showers.

Sunday: Southwest winds 15 to 20 knots. Seas 3 to 6 feet with occasional seas to 8 feet. Dominant period 6 seconds. Showers and slight chance of thunderstorms.

Sunday Night: West winds 10 to 15 knots. Seas 3 to 6 feet. Dominant period 7 seconds. Showers likely and slight chance of thunderstorms.

Monday: Northwest winds 10 to 15 knots. Seas 3 to 6 feet. Chance of showers and slight chance of thunderstorms.

Monday Night: Northwest winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas to 6 feet. Chance of showers.



Zone Forecast: Coastal waters from Port Fourchon Louisiana to Lower Atchafalaya River LA from 20 to 60 NM (GMZ570)

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