GMZ005-140845-
Synopsis for Keys coastal waters from Ocean Reef to Dry Tortugas
1031 PM EDT Thu Mar 13 2025
.SYNOPSIS...High pressure over the western North Atlantic will
keep shifting eastward tonight as it anchors across the central
North Atlantic and builds heading through the weekend. Breezes
will slacken to light to gentle with occasional variable periods
tonight and Friday. The Atlantic high will build over the Atlantic
while a strong surface low develops over the central United
States over the weekend. As a result, breezes will freshen Friday
night through Sunday. Cold frontal passage associated with this
low is expected sometime Sunday night or Monday,and another round
of fresh breezes is expected for early to mid next week.
The Approximate Shoreward Edge of the Gulf Stream as of March
8...
35 NM South of Dry Tortugas Light...on Loggerhead Key.
19 NM South of Cosgrove Shoal Light...off the Marquesas Keys.
16 NM South of Sand Key Light...off Key West.
8 NM South of Looe Key...off Big Pine Key.
8 NM South of Sombrero Key Light...off Marathon.
7 NM Southeast of Alligator Reef Light...off Islamorada.
6 NM Southeast of Molasses Reef Light...off Key Largo.
3 NM East of Carysfort Reef Light...off Ocean Reef.
Gulf Stream Information Courtesy of the National Weather Service in Key
West based on products from the Real Time Ocean Forecast System and
NASA SPoRT.
$$
GMZ033-034-140845-
Gulf of America from East Cape Sable to Chokoloskee 20 to 60 NM
out and beyond 5 fathoms-
Gulf of America including Dry Tortugas and Rebecca Shoal Channel-
1031 PM EDT Thu Mar 13 2025
OVERNIGHT
North to northeast winds 5 to 10 knots. Seas around
1 foot. Wave Detail: East to southeast 1 foot at 3 seconds and
west 1 foot at 5 seconds.
FRIDAY
Northeast winds 5 to 10 knots, becoming east. Seas
around 1 foot. Wave Detail: East 1 foot at 2 seconds.
FRIDAY NIGHT
East to southeast winds 5 to 10 knots, increasing
to near 15 knots after midnight. Seas around 1 foot, building to
1 to 2 feet. Wave Detail: East to southeast 2 feet at 3 seconds.
Isolated showers.
SATURDAY
Southeast winds increasing to 15 to 20 knots. Seas
building to 2 to 4 feet, occasionally to 5 feet. Isolated showers.
SATURDAY NIGHT
Southeast winds 15 to 20 knots. Seas 3 to
4 feet, occasionally to 5 feet. Isolated showers.
SUNDAY
Southeast winds 15 to 20 knots, becoming southeast to
south and decreasing to 10 to 15 knots in the afternoon. Seas 2
to 4 feet, occasionally to 5 feet. Isolated showers.
SUNDAY NIGHT
Southeast winds near 10 knots, becoming southwest
to west and increasing to 10 to 15 knots after midnight. Seas 2
to 3 feet. Scattered showers.
MONDAY
North winds increasing to near 20 knots. Seas building
to 4 to 6 feet, occasionally to 8 feet. Isolated showers.
MONDAY NIGHT
North to northeast winds near 20 knots. Seas 5 to
7 feet, occasionally to 9 feet.
TUESDAY
Northeast to east winds near 20 knots, decreasing to 15
to 20 knots. Seas 4 to 6 feet, occasionally to 8 feet.
TUESDAY NIGHT
East winds near 15 knots, increasing to 15 to 20
knots. Seas 3 to 4 feet, occasionally to 6 feet.
$$
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