Sunrise 6:54 AM   Sunset 7:55 PM Moonrise 8:43 PM   Moonset 6:45 AM

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GMZ035 Expires:202404251430;;337810 Fzus52 Kkey 250828 Cwfkey
coastal waters forecast for the florida keys national weather service key west fl 428 am edt Thu apr 25 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.
gmz032-035-251430- bayside and gulf side from craig key to west end of seven mile bridge- gulf of mexico from west end of seven mile bridge to halfmoon shoal out to 5 fathoms- 428 am edt Thu apr 25 2024
Today - East winds 10 to 15 knots, increasing to near 15 knots in the afternoon. Seas 1 to 2 feet. NEarshore waters a light to moderate chop, becoming a moderate chop. Tonight - East winds 15 to 20 knots. Seas 1 to 2 feet, except 2 to 3 feet west of the marquesas keys. NEarshore waters choppy. Friday - East winds 15 to 20 knots early. Seas 1 to 2 feet, except building to 2 to 3 feet west of the marquesas keys. NEarshore waters choppy. Friday night - East winds 20 to 25 knots. Seas 2 to 3 feet, except 3 to 5 feet west of the marquesas keys. NEarshore waters very rough. Saturday - East winds near 20 knots. Seas 2 to 3 feet, except 4 to 5 feet west of the marquesas keys. NEarshore waters rough. Saturday night - East winds 20 to 25 knots. Seas 2 to 4 feet, except 4 to 6 feet west of the marquesas keys. NEarshore waters very rough. Isolated showers. Sunday - East winds near 20 knots. Seas 2 to 3 feet, except 4 to 5 feet west of the marquesas keys. NEarshore waters rough. Isolated showers. Sunday night - East winds 20 to 25 knots. Seas 2 to 3 feet, except 4 to 5 feet west of the marquesas keys. NEarshore waters very rough. Isolated showers. Monday - East winds 15 to 20 knots. Seas 2 to 3 feet, except 3 to 4 feet west of the marquesas keys. NEarshore waters choppy. Isolated showers. Monday night - East winds near 20 knots. Seas 2 to 3 feet, except 3 to 4 feet west of the marquesas keys. NEarshore waters rough. Isolated showers.

GMZ005 Synopsis For Keys Coastal Waters From Ocean Reef To Dry Tortugas 428 Am Edt Thu Apr 25 2024
Synopsis - Gentle to moderate breezes will prevail in the near term as an atlantic ridge remains extended westward across florida. This high will be subsumed by a larger high spreading into the western north atlantic late this week and into the weekend. This will be accompanied by sharply freshening easterly breezes.
the approximate shoreward edge of the gulf stream is currently unavailable.

FXUS62 KKEY 250802 AFDKEY

Area Forecast Discussion National Weather Service Key West FL 402 AM EDT Thu Apr 25 2024

New DISCUSSION, MARINE, AVIATION

DISCUSSION
Issued at 400 AM EDT Thu Apr 25 2024

Currently - An Atlantic ridge extends a modest ridge westward across Florida. This is resulting in gentle to moderate easterly breezes across the Keys this morning. Overall conditions remain quite dry with surface dew points still in the mid 60s and precipitable water of just under an inch. This along with a subsidence inversion based just above 850 mb and a backing profile has prevented any shower formation. For a long stretch this evening the forecast area was largely cloud free. More recently, fields of stratocumulus have been able to percolate, but still no radar precipitation returns. Meanwhile, troughing does prevail from just above the inversion to the tropopause. However, this has had no impact on local weather

Forecast - The weak ridge across Florida will hold on for another day, keeping winds generally gentle out of the east. The incoming air will continue to originate from further north. This along with being driven by the anticyclone will keep dew points down in the mid 60s. Temperatures will range near to slightly below normal.
Stable conditions will continue with lower level inhibition just managing to hold on and the mid and upper levels transitions to sharp ridging.

Heading into the weekend, a sprawling continental high will spread southeastwards off the Atlantic coast and stretch a beefy ridge axis across the Gulf of Mexico. This will result in a stiff freshening of northeast to easterly breezes. This will also give a large dose of continental air and ensure dew points remain in the lower to mid 60s. Expect temperatures to remain near to slightly below normal. Deep layered ridging, lack of moisture, and a persistent subsidence inversion will extend our lengthy stretch of dry air.

The sprawling high will steadily weaken through the weekend as it settles southwestward along the Atlantic Coast. Expect winds to trend downwards from late in the weekend and through early next week. As this transition takes place, boundary layer moisture will trend upwards and local dew points will climb inexorably into the upper 60s. In addition, the synoptic scale subsidence inversion will elevate towards 800 mb. All this along with the flow aloft becoming zonal and the lower to mid level high becoming displace to our north will open the door for a slight chance for showers.
No distinct temperature trend is expected.

MARINE
Issued at 400 AM EDT Thu Apr 25 2024

An Atlantic ridge will maintain a modest ridge across Florida today and keep gentle to moderate easterly breezes on Keys waters.
Winds will trend sharply upwards late this week and into the weekend as a sprawling high drives southeastward off of the Atlantic coast and reach across the Gulf of Mexico. Small Craft Advisories are becoming increasingly likely for all Keys waters beginning Friday Night and lasting through the weekend. Winds will gradually taper back early next week as the high weakens and settles southwestward along the Atlantic coast.

AVIATION
(06Z TAFS)
Issued at 400 AM EDT Thu Apr 25 2024

VFR and dry conditions will prevail at both EYW and MTH through the TAF period. Near surface winds will be easterly at 5 to 10 knots.

CLIMATE
Other than 0.02 inches measured at MTH 3 days ago, EYW and MTH have remained dry for the last 20 days. The last measurable rainfall was at EYW of 0.55 inches on April 4th.

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

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Big Torch Key
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Thu -- 03:39 AM EDT     1.97 feet High Tide
Thu -- 06:54 AM EDT     Sunrise
Thu -- 07:45 AM EDT     Moonset
Thu -- 10:25 AM EDT     0.58 feet Low Tide
Thu -- 02:46 PM EDT     2.93 feet High Tide
Thu -- 07:52 PM EDT     Sunset
Thu -- 09:42 PM EDT     Moonrise
Thu -- 11:38 PM EDT     -0.43 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Big Torch Key, Harbor Channel, Florida, Tide feet

No Name Key (northeast of)
Click for Map
Thu -- 01:11 AM EDT     -0.00 knots Slack
Thu -- 03:50 AM EDT     -0.95 knots Max Ebb
Thu -- 06:54 AM EDT     Sunrise
Thu -- 07:20 AM EDT     0.00 knots Slack
Thu -- 07:45 AM EDT     Moonset
Thu -- 09:54 AM EDT     0.53 knots Max Flood
Thu -- 12:36 PM EDT     -0.00 knots Slack
Thu -- 03:52 PM EDT     -1.17 knots Max Ebb
Thu -- 07:17 PM EDT     0.00 knots Slack
Thu -- 07:52 PM EDT     Sunset
Thu -- 09:42 PM EDT     Moonrise
Thu -- 10:30 PM EDT     0.90 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION

No Name Key (northeast of), Florida Current, knots

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Key West, FL,