NWS Marine Forecast



 Hazardous marine condition(s):
 Short Term Forecast
   GMZ005-020930-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  429 PM EST Sun Mar 1 2026      .SYNOPSIS...  A weak high pressure system over the southeastern United States  will push southeastward across Florida tonight as a weak trough  pulls out into the Atlantic. As a result, light breezes will pick  up moderately out of the northeast. Thereafter, a large and robust  high will drive southeastward off of North America into the  Atlantic. This will usher in a prolonged period of moderate to  fresh breezes across the area through the remainder of the  forecast. A mix of cautions and possibly Advisories may be  required beginning around Monday Night.      The Approximate Shoreward Edge of the Gulf Stream as of February  26...    14 NM South of Dry Tortugas Light...on Loggerhead Key.  4 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  2 NM South of Sand Key Light...off Key West.  9 NM South of Looe Key...off Big Pine Key.  14 NM Southeast of Sombrero Key Light...off Marathon.  12 NM Southeast of Alligator Reef Light...off Islamorada.  5 NM Southeast of Molasses Reef Light...off Key Largo.  3 NM Southeast of Carysfort Reef Light...off Ocean Reef.    Gulf Stream Information Courtesy of the National Weather Service in  Key West based on products from NASA SPoRT and RTOFS.    $$
   GMZ032-035-020930-  Bayside and Gulfside from Craig Key to west end of Seven Mile  Bridge-  Gulf of America from west end of Seven Mile Bridge to Halfmoon  Shoal out to 5 Fathoms-  429 PM EST Sun Mar 1 2026    TONIGHT  Northeast winds 5 to 10 knots, increasing to 10 to  15 knots after midnight. Seas building to 1 to 2 feet. Nearshore  waters smooth to a light chop, becoming a light to moderate chop.  Isolated showers and thunderstorms.  MONDAY  Northeast to east winds near 15 knots, decreasing to 10  to 15 knots. Seas subsiding to 1 to 2 feet. Nearshore waters a  moderate chop, becoming a light to moderate chop. Isolated  showers.  MONDAY NIGHT  Northeast to east winds increasing to near 15  knots. Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas  Keys. Nearshore waters becoming a moderate chop. Isolated  showers.  TUESDAY  Northeast to east winds near 15 knots. Seas 1 to 2  feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore  waters a moderate chop. Isolated showers.  TUESDAY NIGHT  Northeast to east winds near 15 knots. Seas 1 to  2 feet, except 2 to 3 feet west of the Marquesas Keys. Nearshore  waters a moderate chop. Isolated showers.  WEDNESDAY  East winds 15 knots. Seas 1 to 2 feet, except 2 to 3  feet west of the Marquesas Keys. Nearshore waters a moderate  chop. Isolated showers.  WEDNESDAY NIGHT THROUGH THURSDAY NIGHT  East winds 15 knots.  Seas 1 to 2 feet, except 2 to 3 feet west of the Marquesas Keys.  Nearshore waters a moderate chop. Isolated showers.  FRIDAY  East winds near 15 knots. Seas 1 to 2 feet, except  building to 3 to 4 feet, occasionally to 5 feet, west of the  Marquesas Keys. Nearshore waters a moderate chop. Isolated  showers.  FRIDAY NIGHT  East winds near 15 knots. Seas 2 to 4 feet,  occasionally to 5 feet, except around 4 feet, occasionally to  5 feet west of the Marquesas Keys. Nearshore waters a moderate  chop. Isolated showers.    $$