Sunrise 6:40 AM   Sunset 8:06 PM Moonrise 3:00 PM   Moonset 2:41 AM

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GMZ035 Expires:202405182045;;427418 Fzus52 Kkey 181432 Cwfkey
coastal waters forecast for the florida keys national weather service key west fl 1032 am edt Sat may 18 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.
wave detail will include details about the period and direction of origin for the highest energy waves. Long-period swells coming from a different direction than the wind would be included in the wave detail.
gmz032-035-182045- 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- 1032 am edt Sat may 18 2024
This afternoon - Southeast to south winds 10 to 15 knots, decreasing to 5 to 10 knots. Seas 1 to 2 feet, subsiding to 1 foot or less. NEarshore waters a light to moderate chop, becoming smooth to a light chop.Tonight - East to southeast winds 5 to 10 knots, becoming southeast to south 10 to 15 knots after midnight. Seas 1 foot or less, building to 1 to 2 feet. NEarshore waters smooth to a light chop, becoming a light to moderate chop. Isolated showers. Sunday - South winds 5 to 10 knots, becoming southwest to west in the afternoon. Seas 1 foot or less. NEarshore waters smooth to a light chop. Isolated showers and Thunderstorms. Sunday night - West to northwest winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms. Monday - West winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms. Monday night - Northwest winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms. Tuesday - Northwest to north winds near 5 knots, becoming variable in the afternoon. Seas 1 foot or less. NEarshore waters smooth. Scattered showers and isolated Thunderstorms. Tuesday night - Northwest to north winds near 5 knots, becoming northeast to east after midnight. Seas 1 foot or less. NEarshore waters smooth. Scattered showers and isolated Thunderstorms. Wednesday - East winds 5 to 10 knots. Seas 1 foot or less. NEarshore waters smooth to a light chop. Isolated showers and Thunderstorms. Wednesday night - East to southeast winds near 10 knots. Seas around 1 foot. NEarshore waters a light chop. Isolated showers and Thunderstorms.

GMZ005 Synopsis For Keys Coastal Waters From Ocean Reef To Dry Tortugas 1032 Am Edt Sat May 18 2024
Synopsis - The western extent of a low-level ridge axis extends west-northwest through the bahamas and across the keys. Southeast breezes will tend to peak and lull overnight through Sunday as the heating and cooling of south florida and cuba modulate the local wind forecast. There may be a break in the rain-free conditions Sunday night through Tuesday, followed by variable breezes Tuesday through Wednesday.
the approximate shoreward edge of the gulf stream as of may 15, 2024 - .
49 nm south of dry tortugas light - .on loggerhead key. 32 nm south of cosgrove shoal light - .off the marquesas keys. 24 nm south of sand key light - .off key west. 27 nm south of looe key - .off big pine key. 29 nm south of sombrero key light - .off marathon. 8 nm southeast of alligator reef light - .off islamorada. 3 nm southeast of molasses reef light - .off key largo.
gulf stream information courtesy of the national weather service in key west.

FXUS62 KKEY 181450 AFDKEY

Area Forecast Discussion National Weather Service Key West FL 1050 AM EDT Sat May 18 2024

New DISCUSSION, MARINE, AVIATION

DISCUSSION
Issued at 1034 AM EDT Sat May 18 2024 Water vapor imagery highlights a large, mean-layer ridge centered over the Western Caribbean and the Bahamas. A slightly squashed surface high stretches west-northwest through the Bahamas into the eastern Gulf of Mexico. The 12Z KKEY RAOB sampled a dry and inhibited profile. Similar to the past five days, a hot and humid afternoon is underway. Temperatures are close to 90 and dewpoints are touching 80. These combinations will result in heat indices in the 100s this afternoon, and a Heat Advisory is in effect. The forecast calls for highs in the lower to mid 90s and nil rain chances. Sandbar venturers should expect SSTs in the upper 80s to near 90. Stay cool and hydrated.

MARINE
Issued at 1034 AM EDT Sat May 18 2024 The western extent of a low-level ridge axis extends west- northwest through the Bahamas and across the Keys. Southeast breezes will tend to peak and lull overnight through Sunday as the heating and cooling of South Florida and Cuba modulate the local wind forecast. There may be a break in the rain-free conditions Sunday night through Tuesday, followed by variable breezes Tuesday through Wednesday.

AVIATION
(15Z TAFS)
Issued at 1034 AM EDT Sat May 18 2024 VFR conditions are expected through tomorrow morning at EYW and MTH.
Latest hi-res model guidance is showing the risk for isolated showers and thunderstorms to develop mainly well north of the Island Chain overnight. Right now, this activity looks to remain north and doesn't pose a threat to the terminals, though, we will continue to monitor. Therefore, VCSH was left out of the TAF for now. Surface winds will oscillate between south southeast and east southeast over the course of the TAF period, remaining between 6 to 12 knots.

CLIMATE
On this day in 1994, the daily record rainfall of 2.52" was recorded in Marathon. Rainfall records date back to 1950.

OF NOTE In 2006, WFO Key West officially changed its identifier from EYW to KEY.

PRELIMINARY POINT TEMPS/POPS
Key West 92 82 92 79 / 0 10 20 30 Marathon 91 83 91 80 / 10 10 20 30

KEY WATCHES/WARNINGS/ADVISORIES
FL...Heat Advisory until 6 PM EDT this evening for FLZ076>078.

GM...None.

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Big Coppitt Key
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Sat -- 03:40 AM EDT     Moonset
Sat -- 06:41 AM EDT     Sunrise
Sat -- 07:46 AM EDT     0.12 feet Low Tide
Sat -- 11:45 AM EDT     1.14 feet High Tide
Sat -- 03:59 PM EDT     Moonrise
Sat -- 08:05 PM EDT     Sunset
Sat -- 08:29 PM EDT     0.10 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Big Coppitt Key, northeast side, Waltz Key Basin, Florida, Tide feet

Key West
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Sat -- 02:30 AM EDT     0.00 knots Slack
Sat -- 03:41 AM EDT     Moonset
Sat -- 05:11 AM EDT     0.62 knots Max Flood
Sat -- 06:42 AM EDT     Sunrise
Sat -- 07:15 AM EDT     -0.00 knots Slack
Sat -- 10:51 AM EDT     -1.49 knots Max Ebb
Sat -- 02:38 PM EDT     0.00 knots Slack
Sat -- 04:00 PM EDT     Moonrise
Sat -- 05:35 PM EDT     0.86 knots Max Flood
Sat -- 07:57 PM EDT     -0.00 knots Slack
Sat -- 08:05 PM EDT     Sunset
Sat -- 11:24 PM EDT     -1.48 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION

Key West, Florida Current, knots

Full Color Weather Map

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Key West, FL,