NWS Marine Forecast


   GMZ005-261545-  Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas  1031 PM EST Sun Jan 25 2026      .SYNOPSIS...Light to gentle breezes today will trend downwards  and clock southerly tonight as an Atlantic ridge retreats eastward  and a prefrontal trough advances into the eastern Gulf. The tail  end of a prefrontal trough will swing through South Florida and  the Keys, followed by a strong cold front. Expect winds to  strengthen modestly on Monday before surging considerably in wake  of the front with fresh to strong northerly breezes beginning  Monday and Monday night. Winds are expected to relax substantially  on Tuesday as high pressure builds southeastward through the  southeast and across Florida. Another somewhat weaker wind surge  is becoming increasingly likely Tuesday night as a reinforcing  cold front rolls southward across the area.    The Approximate Shoreward Edge of the Gulf Stream as of January  18...    18 NM South of Dry Tortugas Light...on Loggerhead Key.  16 NM South of Cosgrove Shoal Light...off the Marquesas Keys.  15 NM South of Sand Key Light...off Key West.  13 NM South of Looe Key...off Big Pine Key.  13 NM Southeast of Sombrero Key Light...off Marathon.  12 NM Southeast of Alligator Reef Light...off Islamorada.  7 NM Southeast of Molasses Reef Light...off Key Largo.  4 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.    $$
   GMZ032-035-261545-  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-  1031 PM EST Sun Jan 25 2026    SMALL CRAFT ADVISORY LIKELY WILL BE REQUIRED MONDAY NIGHT    OVERNIGHT  Southeast to south winds 5 to 10 knots, becoming  south to southwest. Seas 1 foot or less. Nearshore waters smooth  to a light chop. Isolated showers.  MONDAY  Southwest to west winds 5 to 10 knots, becoming west to  northwest 15 to 20 knots. Seas building to 1 to 2 feet. Nearshore  waters smooth to a light chop, becoming choppy. Isolated showers.  MONDAY NIGHT  Northwest to north winds 20 to 25 knots,  increasing to near 25 knots. Seas 2 to 4 feet, occasionally to 5  feet, building to 4 to 6 feet, occasionally to 8 feet after  midnight. West of the Marquesas Keys, seas 4 to 6 feet,  occasionally to 8 feet, building to 6 to 8 feet, occasionally to  10 feet. Nearshore waters very rough, becoming extremely rough.  Isolated showers early.  TUESDAY  North winds 20 to 25 knots, becoming north to  northeast 15 to 20 knots. Seas 4 to 6 feet, occasionally to 8  feet. West of the Marquesas Keys, seas 7 to 9 feet, occasionally  to 11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet.  Nearshore waters very rough, becoming choppy.  TUESDAY NIGHT  North to northeast winds 15 to 20 knots. Seas  2 to 4 feet, occasionally to 5 feet, except 4 to 6 feet,  occasionally to 8 feet west of the Marquesas Keys. Nearshore  waters choppy.  WEDNESDAY  North 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.  WEDNESDAY NIGHT  Northwest to north winds 15 to 20 knots. Seas  2 to 4 feet, occasionally to 5 feet. Nearshore waters choppy.  Isolated showers.  THURSDAY  North winds 15 to 20 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 choppy.  THURSDAY NIGHT  North to northeast winds near 15 knots. Seas  subsiding to 1 to 3 feet. Nearshore waters a moderate chop.  FRIDAY  North to northeast winds 10 to 15 knots. Seas 2 to  3 feet. Nearshore waters a light to moderate chop.  FRIDAY NIGHT  North to northeast winds 10 to 15 knots. Seas  2 to 3 feet. Nearshore waters a light to moderate chop. Isolated  showers.    $$