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Hazardous marine condition(s):
Small Craft Advisory
Hazardous Weather Outlook
GMZ005-142345-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1156 AM EST Fri Dec 14 2018
.SYNOPSIS...Low pressure will move slowly to the east-northeast
from the Lower Mississippi Valley to the mid Atlantic coast
through Saturday night, then move offshore from the northeastern
states on Sunday. Showers and thunderstorms ahead of the trailing
cold front may affect the Keys coastal waters tonight, and the
front is expected to move through the area on Saturday. A westerly
swell approaching 8 feet will affect the deep Gulf waters and the
western Florida Straits from Saturday into early Sunday.
The Approximate Shoreward Edge of the Gulf Stream as of
December 13...
33 NM South of Dry Tortugas Light...on Loggerhead Key.
18 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
17 NM South of Sand Key Light...off Key West.
24 NM South of Looe Key...off Big Pine Key.
25 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.
1 NM East of Carysfort Reef Light...off Ocean Reef.
Gulf Stream Information Courtesy of the Naval Oceanographic Office.
$$
GMZ053>055-073>075-142345- Straits of Florida from Craig Key to west end of Seven Mile Bridge out 20 NM- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM- Straits of Florida from Craig Key to west end of Seven Mile Bridge 20 to 60 NM out- Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal 20 to 60 NM out- Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas 20 to 60 NM out- 1156 AM EST Fri Dec 14 2018 SMALL CRAFT ADVISORY IN EFFECT THIS AFTERNOON Southeast to south winds 20 to 25 knots, decreasing to 15 to 20 knots late this afternoon. Seas 4 to 6 feet. Isolated showers and late afternoon thunderstorms. TONIGHT South to southwest winds 10 to 15 knots. Seas 2 to 4 feet. Scattered showers and thunderstorms in the evening, then numerous showers and scattered thunderstorms after midnight. SATURDAY West winds 5 to 10 knots. Seas 2 to 4 feet, except building to 4 to 8 feet west of Sand Key in a west swell. Numerous showers and scattered thunderstorms. SATURDAY NIGHT Northwest to north winds 10 to 15 knots. Seas 4 to 8 feet in a west swell, highest west of Sand Key. Scattered showers. Isolated thunderstorms in the evening. SUNDAY North winds 10 to 15 knots. Seas 4 to 6 feet in a west swell. Isolated showers. SUNDAY NIGHT AND MONDAY North to northeast winds 10 to 15 knots. Seas 3 to 5 feet. MONDAY NIGHT North winds 10 to 15 knots. Seas 2 to 3 feet. TUESDAY North to northeast winds 5 to 10 knots. Seas 1 to 3 feet. Isolated showers. TUESDAY NIGHT Northeast to east winds 5 to 10 knots. Seas 1 to 2 feet. Isolated showers. $$
GMZ053>055-073>075-142345- 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 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- 1156 AM EST Fri Dec 14 2018 SMALL CRAFT ADVISORY IN EFFECT THIS AFTERNOON Southeast to south winds 20 to 25 knots, decreasing to 15 to 20 knots late this afternoon. Seas 4 to 6 feet. Isolated showers and late afternoon thunderstorms. TONIGHT South to southwest winds 10 to 15 knots. Seas 2 to 4 feet. Scattered showers and thunderstorms in the evening, then numerous showers and scattered thunderstorms after midnight. SATURDAY West winds 5 to 10 knots. Seas 2 to 4 feet, except building to 4 to 8 feet west of Sand Key in a west swell. Numerous showers and scattered thunderstorms. SATURDAY NIGHT Northwest to north winds 10 to 15 knots. Seas 4 to 8 feet in a west swell, highest west of Sand Key. Scattered showers. Isolated thunderstorms in the evening. SUNDAY North winds 10 to 15 knots. Seas 4 to 6 feet in a west swell. Isolated showers. SUNDAY NIGHT AND MONDAY North to northeast winds 10 to 15 knots. Seas 3 to 5 feet. MONDAY NIGHT North winds 10 to 15 knots. Seas 2 to 3 feet. TUESDAY North to northeast winds 5 to 10 knots. Seas 1 to 3 feet. Isolated showers. TUESDAY NIGHT Northeast to east winds 5 to 10 knots. Seas 1 to 2 feet. Isolated showers. $$