Sunrise 6:40 AM   Sunset 8:07 PM Moonrise 3:48 PM   Moonset 3:06 AM

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GMZ043 Expires:202405190900;;456499 Fzus52 Kkey 190229 Cwfkey
coastal waters forecast for the florida keys national weather service key west fl 1029 pm 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.
gmz042>044-190900- 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- 1029 pm edt Sat may 18 2024
Overnight - East to southeast winds 5 to 10 knots, becoming southeast to south 10 to 15 knots. Seas 1 to 2 feet. NEarshore waters smooth to a light chop, becoming a light to moderate chop. Isolated showers.Sunday - Southeast to south winds 10 to 15 knots, becoming southwest to west 5 to 10 knots. Seas around 2 feet, subsiding to around 1 foot. NEarshore waters a light to moderate chop, becoming smooth to a light chop. Isolated showers.Sunday night - West to northwest winds 5 to 10 knots. Seas 1 foot or less. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms. Monday - West winds 5 to 10 knots. Seas 1 foot or less. NEarshore waters smooth to a light chop. Scattered showers and isolated Thunderstorms. Monday night - Northwest winds near 10 knots. Seas around 1 foot. NEarshore waters a light chop. Scattered showers and isolated Thunderstorms. Tuesday - Variable winds near 5 knots. Seas 1 foot or less. NEarshore waters smooth. Scattered showers and isolated Thunderstorms. Tuesday night - Northeast to east winds near 5 knots. Seas 1 foot or less. NEarshore waters smooth. Isolated showers and Thunderstorms. Wednesday - East to southeast winds 5 to 10 knots. Seas around 1 foot. NEarshore waters smooth to a light chop. Isolated showers and Thunderstorms. Wednesday night - East to southeast winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Isolated showers and Thunderstorms. Thursday - East winds near 10 knots. Seas 1 to 2 feet. NEarshore waters a light chop. Isolated showers and Thunderstorms.Thursday night - East winds 10 to 15 knots. Seas around 2 feet. NEarshore waters a light to moderate chop. Isolated showers and Thunderstorms.

GMZ005 Synopsis For Keys Coastal Waters From Ocean Reef To Dry Tortugas 1029 Pm 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 turning to the east Wednesday through Thursday.
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 190302 AFDKEY

Area Forecast Discussion National Weather Service Key West FL 1102 PM EDT Sat May 18 2024

New DISCUSSION, MARINE, AVIATION

DISCUSSION
Issued at 1100 PM EDT Sat May 18 2024

Another sultry evening and beginning to the overnight for the Florida Keys. Current temps (as of 10 pm) are in the mid to upper 80s with dew points in the upper 70s. This is making for a heat index ranging from 99 to 105 degrees! Despite tonight's sounding continuing to show substantial dry air, a boundary north of the island chain has gotten excited enough to pop out a few showers.
However, the dry air is making quick work and showers are struggling to maintain themselves. Nonetheless, this is evidence that there is just enough moisture to work with overnight.

That being said, will leave the slight chances (10 percent) for the island chain. Otherwise, winds which were south to southwest earlier this afternoon, have quickly come around to the east and southeast and freshened slightly. This will provide some relief from the somewhat oppressive heat but not much. Meanwhile, the wind direction will remain favorable to keep dewpoints from falling hardly at all overnight. No changes were needed for this forecast update.

MARINE
Issued at 1100 PM 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 turning to the east Wednesday through Thursday.

AVIATION
(00Z TAFS)
Issued at 1100 PM EDT Sat May 18 2024

Winds have shifted to the east and southeast and freshened slightly this evening. Winds will clock around the compass over the next 24 hours, going from an easterly direction to a west and northwest by Sunday evening. A line of showers has developed north of the island chain and is lifting northward away from the island terminals. Additional isolated showers are possible but confidence is low of showers actually moving across the terminals.
Therefore will omit mentions of VCSH for now.

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

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Conch Key
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Sat -- 12:07 AM EDT     0.19 feet Low Tide
Sat -- 03:37 AM EDT     Moonset
Sat -- 06:15 AM EDT     1.16 feet High Tide
Sat -- 06:37 AM EDT     Sunrise
Sat -- 12:50 PM EDT     0.16 feet Low Tide
Sat -- 03:56 PM EDT     Moonrise
Sat -- 06:48 PM EDT     1.02 feet High Tide
Sat -- 08:02 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Conch Key, eastern end, Florida, Tide feet

Long Key Viaduct
Click for Map
Sat -- 12:33 AM EDT     -0.97 knots Max Ebb
Sat -- 03:37 AM EDT     Moonset
Sat -- 03:44 AM EDT     0.00 knots Slack
Sat -- 06:37 AM EDT     Sunrise
Sat -- 06:38 AM EDT     0.56 knots Max Flood
Sat -- 09:17 AM EDT     -0.00 knots Slack
Sat -- 12:48 PM EDT     -1.05 knots Max Ebb
Sat -- 03:56 PM EDT     Moonrise
Sat -- 03:57 PM EDT     0.00 knots Slack
Sat -- 07:04 PM EDT     0.74 knots Max Flood
Sat -- 08:02 PM EDT     Sunset
Sat -- 09:58 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION

Long Key Viaduct, Florida Current, knots

Full Color Weather Map

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Key West, FL,