Sunrise 6:53 AM   Sunset 7:55 PM Moonrise 9:44 PM   Moonset 7:29 AM

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GMZ044 Expires:202404262045;;408464 Fzus52 Kkey 261433 Cwfkey
coastal waters forecast for the florida keys national weather service key west fl 1033 am edt Fri apr 26 2024
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.
gmz042>044-262045- 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- 1033 am edt Fri apr 26 2024
.small craft should exercise caution for increasing winds - ..small craft advisory will likely be required tonight - .
This afternoon - East winds near 15 knots, increasing to 15 to 20 knots. Seas 2 to 3 feet. NEarshore waters a moderate chop, becoming choppy. Tonight - East winds 20 to 25 knots. Seas 3 to 5 feet. West of cosgrove shoal light, seas 3 to 5 feet, building to 5 to 6 feet. NEarshore waters very rough. Saturday - East winds increasing to 20 to 25 knots. Seas 3 to 5 feet. NEarshore waters becoming very rough. Isolated showers. Saturday night - East winds 20 to 25 knots. Seas 4 to 6 feet. NEarshore waters very rough. Isolated showers. Sunday - East winds near 20 knots. Seas 4 to 6 feet. NEarshore waters rough. Isolated showers. Sunday night - East winds 20 to 25 knots, decreasing to near 20 knots. Seas 3 to 5 feet, except 4 to 6 feet west of cosgrove shoal light. NEarshore waters very rough, becoming rough. Isolated showers.Monday - East winds decreasing to 15 to 20 knots. Seas 3 to 5 feet. NEarshore waters becoming choppy. Isolated showers. Monday night - East winds near 20 knots. Seas 3 to 5 feet. NEarshore waters rough. Isolated showers.Tuesday - East winds 15 to 20 knots. Seas 3 to 4 feet. NEarshore waters choppy. Isolated showers. Tuesday night - East winds decreasing to near 15 knots. Seas 3 to 4 feet. NEarshore waters becoming a moderate chop. Isolated showers.

GMZ005 Synopsis For Keys Coastal Waters From Ocean Reef To Dry Tortugas 1033 Am Edt Fri Apr 26 2024
Synopsis - Gentle to moderate breezes will prevail in the near term as an atlantic ridge extends westward across florida. This high will be subsumed by a larger high spreading into the western north atlantic over the next couple of days. This will be accompanied by sharply freshening easterly breezes. Breezes will diminish somewhat Monday through Tuesday as the high loses latitude towards the bahamas.
the approximate shoreward edge of the gulf stream is currently unavailable.

FXUS62 KKEY 260804 AFDKEY

Area Forecast Discussion National Weather Service Key West FL 404 AM EDT Fri Apr 26 2024

New DISCUSSION, MARINE, AVIATION

DISCUSSION
Issued at 400 AM EDT Fri Apr 26 2024

Currently - An average Atlantic ridge stretching across Florida and into the northeastern Gulf of Mexico is in the early stages of being absorbed by a large high over eastern North America spreading southeast and southwards. Meanwhile, troughing aloft is giving way to sharp ridging advancing eastward through the eastern United States and Gulf of Mexico. A somewhat complicated subsidence inversion was based around 890 mb above a well mixed boundary layer. Precipitable water has come down slightly over the past 24 hours to below .8 inches. This inversion has been and continues to be a big player in squashing shower activity over the past long while. Another contributor has been the general lack of moisture with dew points remaining in the lower to mid 60s.

Forecast - Over the next couple of days the previously mentioned North American high will become a sprawling system reaching from off the New England coast, through the southeast, and across the Gulf of Mexico. In response, local winds will trend sharply upwards. Expect windy conditions by late Saturday. The environment is expected to remain capped to deep convection with a paucity of deep layered moisture. Surface dew points are projected to remain in the lower 60s to mid 60s due to the incoming air being of modified continental origin. Coincident with this dramatically accelerating flow is an expected increase of boundary layer moisture and a deepening of the boundary layer.
This should be sufficient to drive at least a few showers despite lackluster dew points. Expect a compressed temperature range, but near normal.

By late this weekend the high will have weakened some, but remain robust and centered off the Carolina Coast. Fresh breezes on Sunday will gradually ease back over the ensuing couple of days as the high weakens further and scoots south. Through this, upstream streamlines will be squashed further south, resulting in dew points moving upwards through the upper 70s. Expect temperatures to also trend upwards, moving more fully into the mid 80s through this period. Meanwhile, the upper level ridging will shift substantially northward leaving a zonal subtropical jet and nebulous mid levels across our area. All this shifts east into the Atlantic through the first half of the week. This will not do anything to prevent shower formation. For this time of year, at least a slight chance of showers is justified.

MARINE
Issued at 400 AM EDT Fri Apr 26 2024

Over the next couple of days, an Atlantic ridge across Florida will be absorbed by a large strengthening high cell driving southeast and southeastward off of eastern North America. As a result, expect Keys marine winds to trend sharply upwards. A Small Craft Advisory will likely be required for all Keys waters by tonight. Winds may lull with day time heating on Saturday. But this lull will be short lived. Expect fresh to strong winds from Saturday through Sunday. Winds will begin easing beginning Sunday as the responsible high weakens slightly while shifting southwestward off the Atlantic coast, closer to the Keys.

AVIATION
(06Z TAFS)
Issued at 400 AM EDT Fri Apr 26 2024

VFR conditions are expected to prevail through the TAF period. Near surface winds will remain light to gentle out of the northeast to east through the mid-morning hours before a wind surge develops for the late morning continuing through the afternoon and evening hours.
Wind gusts to 25 knots are possible at times.

CLIMATE
On this day on Keys Weather History, the daily record warm low temperature of 81F was recorded in Key West. This is also tied for the warmest low temperature ever recorded in April. Temperature records for Key West date back to 1873.

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

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Cow Key Channel, Florida, Tide feet

Key West
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Fri -- 12:26 AM EDT     -0.00 knots Slack
Fri -- 03:28 AM EDT     -1.65 knots Max Ebb
Fri -- 06:55 AM EDT     Sunrise
Fri -- 07:08 AM EDT     0.00 knots Slack
Fri -- 08:29 AM EDT     Moonset
Fri -- 09:10 AM EDT     0.71 knots Max Flood
Fri -- 11:26 AM EDT     -0.00 knots Slack
Fri -- 03:26 PM EDT     -2.08 knots Max Ebb
Fri -- 07:07 PM EDT     0.00 knots Slack
Fri -- 07:54 PM EDT     Sunset
Fri -- 09:51 PM EDT     1.32 knots Max Flood
Fri -- 10:43 PM EDT     Moonrise
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Key West, Florida Current, knots

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