National Weather Service United States Department of Commerce

Heavy snow forecast for parts of Upper Midwest and western Great Lakes

A cold air mass behind a cold front will bring below-normal temperatures across much of the eastern and northern U.S. on Wednesday and allow for snow, heavy at times, to develop across parts of the Upper Midwest and western Great Lakes, mainly from central Minnesota to northern Michigan. Winter Storm Warnings and Winter Weather Advisories are in effect across the region.
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Hazardous Weather Conditions

Last Update: 946 AM EDT WED APR 16 2014

View Nearby Observations

Coastal waters from Apalachicola to Destin FL 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 1/10 OF THE WAVES.

  • SynopsisOFFSHORE WINDS AND SEAS WILL REMAIN MAY LINGER AT ADVISORY LEVELS THROUGH MID-AFTERNOON...BEFORE CONDITIONS SUBSIDE TO CAUTIONARY LEVELS. EXPECT MODEST EASTERLY WINDS TO AT LEAST KEEP CONDITIONS AT CAUTIONARY LEVELS THROUGH THURSDAY...BEFORE ADVISORY CONDITIONS RETURN AHEAD OF A LOW PRESSURE SYSTEM IN THE GULF FRIDAY...POSSIBLY LASTING THROUGH SATURDAY. THEREAFTER...WINDS AND SEAS WILL EVENTUALLY FALL TO BELOW HEADLINE CONDITIONS.
  • This Afternoon Northeast wind around 20 knots becoming 15 to 20 knots. Seas 6 to 8 feet occasionally up to 10 feet subsiding to 3 to 5 feet. Seas highest offshore. Dominant period 5 seconds. Protected waters choppy becoming a moderate chop in the afternoon.
  • Tonight East wind 15 to 20 knots increasing to around 20 knots from east to west through the night. Seas 4 to 6 feet occasionally up to 8 feet. Dominant period 4 seconds. Protected waters choppy. A slight chance of rain after midnight.
  • Thursday Northeast wind 15 to 20 knots becoming 10 to 15 knots late in the afternoon. Seas 4 to 6 feet occasionally up to 8 feet. Dominant period 5 seconds. Protected waters choppy becoming a light to moderate chop. A chance of rain.
  • Thursday Night East wind around 20 knots. Seas 4 to 5 feet building to 6 to 7 feet occasionally up to 9 feet. Dominant period 5 seconds. Protected waters choppy. A chance of rain in the evening. Isolated thunderstorms through the night.
  • Friday Northeast wind 20 to 25 knots. Seas 5 to 7 feet occasionally up to 9 feet. Dominant period 5 seconds. Protected waters rough. Rain likely and isolated thunderstorms.
  • Friday Night North wind around 20 knots. Seas 6 to 8 feet occasionally up to 10 feet subsiding to 5 to 6 feet. Dominant period 4 seconds. Protected waters choppy. A chance of rain.
  • Saturday North wind around 15 knots. Seas 3 to 4 feet occasionally up to 5 feet. Protected waters a light to moderate chop. A slight chance of rain.
  • Saturday Night North wind 5 to 10 knots becoming northeast around 15 knots in the late evening. Seas 1 to 2 feet. Protected waters smooth increasing to a light to moderate chop in the late evening.
  • Sunday East wind around 10 knots. Seas 1 to 2 feet. Protected waters smooth.



Additional Forecasts and Information

Zone Area Forecast for Coastal waters from Apalachicola to Destin FL out 20 NM