weather.gov     
National Weather Service

NWS Marine Forecast
NWS Homepage
  Cell Phone Weather/Marine Page URL: cell.weather.gov
  PDA Weather/Marine Page URL: mobile.weather.gov


   GMZ005-181600-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  419 AM EST Tue Feb 18 2020      .SYNOPSIS....An Atlantic high pressure ridge will sharpen over  North Florida today. The ridge will shift south through Central  Florida on Wednesday, then weaken and dissipate over South Florida  and the Keys on Thursday. A cold front will arrive from the north  on Friday, with a weak northerly wind shift preceding the front  on Thursday night. Once the actual front passes, a rapid  freshening to strong north then northeast breezes is expected  later Friday and on Saturday.    The Approximate Shoreward Edge of the Gulf Stream as of  February 15...    14 NM South of Dry Tortugas Light...on Loggerhead Key.  14 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  9 NM South of Sand Key Light...off Key West.  15 NM South of Looe Key...off Big Pine Key.  9 NM South of Sombrero Key Light...off Marathon.  1 NM Southeast of Alligator Reef Light...off Islamorada.  5 NM Southeast of Molasses Reef Light...off Key Largo.  6 NM East of Carysfort Reef Light...off Ocean Reef.    Gulf Stream Information Courtesy of the Naval Oceanographic Office.    $$
   GMZ042>044-181600-  Hawk Channel from Ocean Reef to Craig Key out to the reef-  Hawk Channel from Craig Key to west end of Seven Mile Bridge out  to the reef-  Hawk Channel from west end of Seven Mile Bridge to Halfmoon Shoal  out to the reef-  419 AM EST Tue Feb 18 2020    TODAY  East winds near 15 knots. Seas 2 to 3 feet. Nearshore  waters a moderate chop. Isolated showers.  TONIGHT  East to southeast winds near 15 knots. Seas 2 to 4  feet. Nearshore waters a moderate chop.  WEDNESDAY  East winds near 10 knots. Seas 1 to 3 feet.  Nearshore waters a light chop.  WEDNESDAY NIGHT  East winds near 10 knots. Seas 1 to 2 feet.  Nearshore waters a light chop.  THURSDAY  East winds 5 to 10 knots. Seas 1 to 2 feet. Nearshore  waters smooth to a light chop. Isolated showers.  THURSDAY NIGHT  Northeast to east winds near 5 knots becoming  northwest to north and increasing to near 15 knots after midnight.  Seas 1 to 2 feet. Nearshore waters smooth, becoming a moderate  chop. Isolated showers.  FRIDAY  North winds near 15 knots. Seas 1 to 3 feet. Nearshore  waters a moderate chop. Isolated showers.  FRIDAY NIGHT  North to northeast winds 15 to 20 knots,  increasing to near 20 knots. Seas 2 to 4 feet. West of Cosgrove  Shoal Light, seas 3 to 5 feet building to 5 to 6 feet after  midnight. Nearshore waters choppy, becoming rough. Isolated  showers.  SATURDAY  Northeast winds 15 to 20 knots. Seas 2 to 4 feet,  except 4 to 6 feet west of Cosgrove Shoal Light. Nearshore waters  choppy. Scattered showers.  SATURDAY NIGHT  Northeast to east winds near 20 knots. Seas 2  to 5 feet. Nearshore waters rough. Isolated showers.    $$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: Mar 4, 2014
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE