Deep Cold Trough Meets Gulf Moisture with Significant Impacts Across the Western and Central U.S.

A deep trough and associated cold front is bringing much below normal temperatures in the west, with low elevation snows. Strong winds and widespread snow, will impact the Great Basin, western mountains, and the Plains. The slowing front, will bring prolonged waves of heavy rain across the Mississippi Valley to the Great Lakes. Significant icing forecast north of the heavy rain. Big warm up east.
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Hazardous Weather Conditions

Last Update: 334 PM EST Mon Feb 19 2018

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Miami - South Florida Local Forecast Office

5NM SSW Naples FL

Marine Zone Forecast


...SMALL CRAFT SHOULD EXERCISE CAUTION...
Synopsis: The strengthening western Atlantic ridge axis will remain to our north through late week, bringing moderate to fresh east winds to the local waters. Winds will be a little stronger over the Atlantic and Biscayne Bay waters, with the potential for advisory conditions at times. Isolated showers are possible through tonight.

.GULF STREAM HAZARDS...Winds up to 25 knots tonight through Tuesday morning.

The approximate location of the west wall of the Gulf Stream as of Feb 17, 2018 at 1200 UTC...

9 nautical miles northeast of Fowey Rocks. 13 nautical miles east southeast of Port Everglades. 9 nautical miles east southeast of Lake Worth. 12 nautical miles east of Jupiter Inlet.

This data courtesy of the Naval Oceanographic Office.

Tonight
East winds 10 to 15 knots nearshore and east southeast 15 to 20 knots offshore. Seas less than 2 feet nearshore and 2 to 3 feet offshore. Period 3 seconds. Bay and inland waters a moderate chop. A chance of showers.
Tuesday
Southeast winds 10 to 15 knots nearshore and southeast 15 to 20 knots offshore. Seas less than 2 feet nearshore and 2 to 3 feet offshore. Period 3 seconds. Bay and inland waters a moderate chop.
Tuesday Night
East southeast winds 10 to 15 knots nearshore and east southeast 15 to 20 knots offshore. Seas less than 2 feet nearshore and 2 to 3 feet offshore. Period 3 seconds. Bay and inland waters a moderate chop.
Wednesday
East southeast winds around 10 knots nearshore and east southeast around 15 knots offshore. Seas around 2 feet. Period 3 seconds. Bay and inland waters a light chop.
Wednesday Night
East winds around 10 knots with gusts to around 20 knots nearshore and east around 15 knots offshore. Seas less than 2 feet nearshore and 2 to 3 feet offshore. Bay and inland waters a light chop.
Thursday Through Friday Night
East winds 10 to 15 knots. Seas around 2 feet. Bay and inland waters a light chop.
Saturday
East southeast winds 5 to 10 knots nearshore and southeast 10 to 15 knots offshore. Seas around 2 feet. Bay and inland waters a light chop.
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ABOUT THIS FORECAST

Last Update: 334 PM EST Mon Feb 19 2018
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