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.
$$
GMZ031-140845-
Florida Bay including Barnes Sound, Blackwater Sound, and
Buttonwood Sound-
1031 PM EDT Thu Mar 13 2025
OVERNIGHT
Southeast winds 5 to 10 knots, becoming variable and
decreasing to near 5 knots. Bay waters smooth to a light chop,
becoming smooth.
FRIDAY
Northeast winds near 5 knots, becoming east to
southeast and increasing to near 10 knots in the afternoon. Bay
waters smooth, becoming a light chop.
FRIDAY NIGHT
East to southeast winds near 10 knots, increasing
to near 15 knots. Bay waters a light chop, becoming a moderate
chop. Isolated showers.
SATURDAY AND SATURDAY NIGHT
Southeast winds 15 to 20 knots.
Bay waters choppy. Isolated showers.
SUNDAY
Southeast winds 15 to 20 knots, decreasing to 10 to 15
knots in the afternoon. Bay waters choppy, becoming a light to
moderate chop. Isolated showers.
SUNDAY NIGHT
Southeast to south winds 10 to 15 knots, becoming
south. Bay waters a light to moderate chop. Scattered showers.
MONDAY
Southwest to west winds near 10 knots, becoming north
and increasing to 10 to 15 knots in the afternoon. Bay waters a
light chop, becoming a light to moderate chop. Scattered showers.
MONDAY NIGHT
North to northeast winds increasing to near 20
knots. Bay waters becoming rough.
TUESDAY
Northeast to east winds near 20 knots. Bay waters
rough.
TUESDAY NIGHT
Northeast to east winds 15 to 20 knots,
decreasing to near 15 knots. Bay waters choppy, becoming a
moderate chop.
$$
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