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GMZ075 Expires:202311300930;;631715 Fzus52 Kkey 300327 Cwfkey
coastal waters forecast for the florida keys national weather service key west fl 1027 pm est Wed nov 29 2023
florida bay, hawk channel and straits of florida from ocean reef to south of dry tortugas, and the extreme southeastern gulf of mexico, including the florida keys national marine sanctuary
seas are given as significant wave height, which is the average height of the highest 1/3 of the waves. Individual waves may be more than twice the significant wave height.
gmz052>055-072>075-300930- straits of florida from ocean reef to craig key out 20 nm- straits of florida from craig key to west end of seven mile bridge out 20 nm- straits of florida from west end of seven mile bridge to south of halfmoon shoal out 20 nm- straits of florida from halfmoon shoal to 20 nm west of dry tortugas out 20 nm- straits of florida from ocean reef to craig key 20 to 60 nm out- straits of florida from craig key to west end of seven mile bridge 20 to 60 nm out- straits of florida from west end of seven mile bridge to south of halfmoon shoal 20 to 60 nm out- straits of florida from halfmoon shoal to 20 nm west of dry tortugas 20 to 60 nm out- 1027 pm est Wed nov 29 2023
.small craft should exercise caution...
Overnight..Northeast to east winds 15 to 20 knots. Seas 4 to 5 feet. Isolated showers.
Thursday..Northeast to east winds 15 to 20 knots, becoming east. Seas 4 to 6 feet. Isolated showers.
Thursday night..East winds 15 to 20 knots. Seas 4 to 6 feet. Isolated showers.
Friday..East winds 15 to 20 knots, decreasing to near 15 knots. Seas 4 to 5 feet, subsiding to 3 to 5 feet. Isolated showers.
Friday night..East winds 15 to 20 knots, becoming east to southeast and decreasing to near 15 knots. Seas 4 to 5 feet, subsiding to 3 to 5 feet. Isolated showers.
Saturday..East to southeast winds near 15 knots, decreasing to 10 to 15 knots. Seas 3 to 4 feet, subsiding to around 3 feet. Isolated showers.
Saturday night..East to southeast winds 10 to 15 knots, becoming southeast. Seas 2 to 3 feet. Isolated showers.
Sunday..Southeast winds near 10 knots, becoming variable and decreasing to 5 to 10 knots. Seas 1 to 2 feet. Isolated showers.
Sunday night..Variable winds 5 to 10 knots. Seas 1 to 2 feet. Isolated showers.
Monday..Variable winds near 5 knots, becoming north to northeast and increasing to 5 to 10 knots. Seas around 1 foot, building to 1 to 2 feet. Isolated showers.
Monday night..North to northeast winds near 10 knots, increasing to near 15 knots. Seas building to 2 to 3 feet. Isolated showers.

GMZ005 Synopsis For Keys Coastal Waters From Ocean Reef To Dry Tortugas 1027 Pm Est Wed Nov 29 2023
Synopsis..High pressure initially over the southeastern united states will shift east into the western north atlantic over the next several days. Fresh northeast breezes tonight will shift to the east by Friday. Breezes will continue to veer to the east to southeast Friday night through Saturday night, then to the southeast to south on Sunday as the high moves farther east into the atlantic. Breezes will become variable for Sunday night and Monday before freshening Monday night as a frontal system approaches.
the approximate shoreward edge of the gulf stream as of november 25...
39 nm south of dry tortugas light...on loggerhead key. 11 nm south of cosgrove shoal light...off the marquesas keys. 7 nm south of sand key light...off key west. 14 nm south of looe key...off big pine key. 28 nm south of sombrero key light...off marathon. 11 nm southeast of alligator reef light...off islamorada. 6 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.

FXUS62 KKEY 300336 AFDKEY

Area Forecast Discussion National Weather Service Key West FL 1036 PM EST Wed Nov 29 2023

New DISCUSSION, MARINE, AVIATION

DISCUSSION
Issued at 1015 PM EST Wed Nov 29 2023 The 00Z KKEY RAOB sampled shallow east-northeasterlies with westerlies above 850 mb. Low-level moisture has not recovered, but there are signs that warm air advection may begin within the next 12-24 hours. Northeast winds at the Reef average 14 to 17 knots.
Temperatures along the island chain range from 69 to 72 degrees, with dewpoints in the lower to mid 60s. The forecast calls for temperatures to fall about five more degrees overnight, with most communities in the 60s at daybreak. The pattern favors another density surge off the Mainland, so those of us with decorations on their front doors should expect some moving and shaking at dawn.
Other than lowering overnight lows a degree or two, we also delayed the return to easterly breezes on Thursday. The Gulf and Bayside SSTs are now solidly in the mid 70s, creating a differential in SSTs with the Atlantic side of 10 degrees or more.
This is a classic setup for continued northeast to east breezes, possibly through Thursday night for some areas.

MARINE
Issued at 1015 PM EST Wed Nov 29 2023 There are no watches, warnings, or advisories currently in effect for the coastal waters of the Florida Keys. Small Craft Should Exercise Caution for northeast winds 15 to 20 knots. High pressure initially over the Southeastern United States will shift east into the western North Atlantic over the next several days.
Moderate to fresh northeast breezes tonight will shift to the east by Friday. Breezes will continue to veer to the east to southeast Friday night through Saturday night, then to the southeast to south on Sunday as the high moves farther east into the Atlantic.
Breezes will become variable for Sunday night and Monday before freshening Monday night as a frontal system approaches.

AVIATION
(00Z TAFS)
Issued at 1015 PM EST Wed Nov 29 2023 Supra-VFR CIGS and gusty northeast winds will continue at the EYW and MTH terminals. Although guidance suggests a turn to the east on Thursday, this likely will be delayed.



PRELIMINARY POINT TEMPS/POPS
Key West 69 79 74 82 / 10 10 10 10 Marathon 68 79 73 84 / 10 10 10 10

KEY WATCHES/WARNINGS/ADVISORIES
FL...None.
GM...None.

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Sand Key Lighthouse
Click for Map
Wed -- 04:14 AM EST     -0.20 feet Low Tide
Wed -- 06:52 AM EST     Sunrise
Wed -- 09:08 AM EST     Moonset
Wed -- 10:47 AM EST     1.15 feet High Tide
Wed -- 03:13 PM EST     0.64 feet Low Tide
Wed -- 05:38 PM EST     Sunset
Wed -- 07:40 PM EST     Moonrise
Wed -- 09:40 PM EST     2.11 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Sand Key Lighthouse, Sand Key Channel, Florida, Tide feet

Boca Grande Channel
Click for Map
Wed -- 01:34 AM EST     -1.56 knots Max Ebb
Wed -- 04:47 AM EST     0.00 knots Slack
Wed -- 06:53 AM EST     Sunrise
Wed -- 07:42 AM EST     1.42 knots Max Flood
Wed -- 09:09 AM EST     Moonset
Wed -- 11:34 AM EST     -0.00 knots Slack
Wed -- 02:25 PM EST     -1.04 knots Max Ebb
Wed -- 05:15 PM EST     0.00 knots Slack
Wed -- 05:38 PM EST     Sunset
Wed -- 07:34 PM EST     0.85 knots Max Flood
Wed -- 07:40 PM EST     Moonrise
Wed -- 10:35 PM EST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION

Boca Grande Channel, Florida Current, knots

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