National Weather Service Marine Forecast FZUS52 KTBW
FZUS52 KTBW 131913
CWFTBW
Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Ruskin FL
213 PM EST Tue Jan 13 2026
Gulf coastal waters from Bonita Beach to the mouth of the Suwannee River out to 60 NM.
Important notice to mariners...marine forecasts are issued at least four times a day. Boaters on extended trips should routinely monitor subsequent forecast issuances and updates for the latest marine weather information.
The wave heights are forecast as significant wave height which is the average of the highest one-third of the waves. The highest waves may rarely be twice the significant wave height. The winds and seas near thunderstorms may be higher than forecast.
GMZ800-140815
Synopsis for the coastal waters from Bonita Beach to Suwannee River
213 PM EST Tue Jan 13 2026
SYNOPSIS
Marine conditions will begin deteriorating late tomorrow as the next cold front approaches. Some storms are forecast across coastal waters, with some locally hazardous marine conditions possible in the vicinity. However, winds begin to increase significantly behind the front, with gusts to near gale force possible on Thursday. This favors dangerous seas of up to 10 feet offshore and 4 to 7 feet nearshore. Inexperienced mariners should remain in port until conditions improve. Winds then begin to settle Thursday night and into Friday, with improving marine conditions Saturday before gradually increasing again as the next front approaches late in the weekend and early next week.
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GMZ830-140815
Tampa Bay waters
213 PM EST Tue Jan 13 2026
TONIGHT
North winds 5 to 10 knots. Bay and inland waters light
chop.
WEDNESDAY
Northwest winds 5 to 10 knots. Bay and inland waters
light chop. A slight chance of showers in the afternoon.
WEDNESDAY NIGHT
West winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots after midnight. Bay and inland
waters a moderate chop. A chance of showers in the evening, then
showers after midnight.
THURSDAY
Northwest winds 15 to 20 knots, increasing to 20 to
25 knots in the afternoon. Bay and inland waters rough. A chance
of showers, mainly in the morning.
THURSDAY NIGHT
North winds 20 to 25 knots, diminishing to
15 to 20 knots after midnight. Bay and inland waters rough.
FRIDAY
Northeast winds 10 to 15 knots, becoming north around
5 knots in the afternoon. Bay and inland waters a moderate chop.
FRIDAY NIGHT
Northeast winds around 5 knots. Bay and inland
waters smooth.
SATURDAY
East winds around 5 knots, becoming west in the
afternoon. Bay and inland waters light chop.
SATURDAY NIGHT
Northwest winds 5 to 10 knots, increasing to
10 to 15 knots after midnight. Bay and inland waters a moderate
chop.
SUNDAY
North winds 10 to 15 knots. Bay and inland waters a
moderate chop.
GMZ836-140815
Charlotte Harbor and Pine Island Sound
213 PM EST Tue Jan 13 2026
TONIGHT
North winds 5 to 10 knots. Bay and inland waters light
chop. A slight chance of showers early this evening. A slight
chance of showers late.
WEDNESDAY
Northwest winds 5 to 10 knots. Bay and inland waters
light chop. A slight chance of showers in the morning.
WEDNESDAY NIGHT
West winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots after midnight. Bay and inland
waters a moderate chop. A chance of showers in the evening, then
showers likely after midnight.
THURSDAY
Northwest winds 15 to 20 knots, increasing to 20 to
25 knots in the afternoon. Bay and inland waters rough. Showers
likely, mainly in the morning.
THURSDAY NIGHT
North winds 20 to 25 knots, diminishing to
15 to 20 knots after midnight. Bay and inland waters rough.
FRIDAY
Northeast winds 10 to 15 knots, becoming north around
5 knots in the afternoon. Bay and inland waters a moderate chop.
FRIDAY NIGHT
North winds around 5 knots. Bay and inland waters
smooth.
SATURDAY
Northeast winds around 5 knots, becoming northwest in
the afternoon. Bay and inland waters light chop.
SATURDAY NIGHT
Northwest winds 5 to 10 knots. Bay and inland
waters light chop.
SUNDAY
North winds 10 to 15 knots. Bay and inland waters a
moderate chop.
GMZ856-140815
Coastal waters from Bonita Beach to Englewood FL out 20 NM
213 PM EST Tue Jan 13 2026
TONIGHT
North winds 5 to 10 knots. Seas around 2 feet this
evening, then 1 foot or less. Wave Detail: North 1 foot at
4 seconds, becoming northwest 1 foot at 4 seconds. Bay and inland
waters light chop. A slight chance of showers late.
WEDNESDAY
Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 4 seconds. Bay and inland waters
light chop.
WEDNESDAY NIGHT
West winds 5 to 10 knots, increasing to 15 to
20 knots after midnight. Seas 1 foot or less, then 2 to 3 feet
after midnight. Wave Detail: Northwest 1 foot at 4 seconds,
becoming west 3 feet at 4 seconds. Bay and inland waters choppy.
A chance of showers in the evening, then showers likely after
midnight.
THURSDAY
Northwest winds 20 to 25 knots, increasing to 25 to
30 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet, building to 5 to 8 feet, occasionally to 10 feet in the
afternoon. Wave Detail: West 6 feet at 6 seconds, becoming
northwest 8 feet at 7 seconds. Bay and inland waters very rough.
Showers likely, mainly in the morning.
THURSDAY NIGHT
North winds 25 to 30 knots, diminishing to
20 to 25 knots after midnight. Seas 5 to 8 feet, occasionally to
10 feet. Wave Detail: Northwest 8 feet at 8 seconds. Bay and
inland waters very rough.
FRIDAY
Northeast winds 10 to 15 knots with gusts up to
20 knots, becoming north around 5 knots in the afternoon. Seas
3 to 5 feet, occasionally to 6 feet. Wave Detail: Northwest
5 feet at 8 seconds and northeast 1 foot at 4 seconds. Bay and
inland waters a moderate chop.
FRIDAY NIGHT
Northeast winds 5 to 10 knots. Seas 2 to 3 feet.
Bay and inland waters light chop.
SATURDAY
North winds 5 to 10 knots. Seas around 2 feet. Bay
and inland waters light chop.
SATURDAY NIGHT
Northwest winds 5 to 10 knots, becoming north
10 to 15 knots after midnight. Seas 1 foot or less, then around
2 feet after midnight. Bay and inland waters a moderate chop.
SUNDAY
North winds 15 to 20 knots. Seas 2 to 3 feet. Bay and
inland waters choppy.
GMZ876-140815
Waters from Bonita Beach to Englewood FL out 20 to 60 NM
213 PM EST Tue Jan 13 2026
TONIGHT
North winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: North 2 feet at 4 seconds. A slight chance of showers
after midnight.
WEDNESDAY
Northwest winds around 10 knots. Seas 1 foot or
less, then around 2 feet in the afternoon. Wave Detail: Northwest
1 foot at 5 seconds, becoming northwest 1 foot at 4 seconds. A
slight chance of showers.
WEDNESDAY NIGHT
West winds around 10 knots, increasing to
15 to 20 knots with gusts up to 25 knots after midnight. Seas
2 to 4 feet, occasionally to 5 feet. Wave Detail: West 3 feet at
4 seconds. A chance of showers in the evening, then showers
likely after midnight.
THURSDAY
Northwest winds 20 to 25 knots with gusts up to
30 knots. Seas 4 to 6 feet, occasionally to 8 feet, building to
6 to 9 feet, occasionally to 11 feet in the afternoon. Wave
Detail: West 6 feet at 6 seconds, becoming northwest 9 feet at
7 seconds. Showers, mainly in the morning.
THURSDAY NIGHT
Northwest winds 20 to 25 knots, becoming north
15 to 20 knots after midnight. Seas 8 to 9 feet, occasionally to
11 feet, subsiding to 6 to 8 feet, occasionally to 10 feet after
midnight. Wave Detail: Northwest 9 feet at 8 seconds, becoming
northwest 8 feet at 8 seconds and north 1 foot at 5 seconds.
FRIDAY
Northeast winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots in the afternoon. Seas
5 to 7 feet, occasionally to 9 feet, subsiding to 3 to 5 feet,
occasionally to 6 feet in the afternoon. Wave Detail: Northwest
6 feet at 8 seconds and north 1 foot at 5 seconds, becoming
northwest 5 feet at 7 seconds and northeast 1 foot at 5 seconds.
FRIDAY NIGHT
Northeast winds 5 to 10 knots. Seas 2 to 4 feet,
occasionally to 5 feet.
SATURDAY
Northeast winds 5 to 10 knots. Seas around 2 feet.
SATURDAY NIGHT
North winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas 1 foot or less, then around 2 feet
after midnight.
SUNDAY
North winds 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet.
GMZ853-140815
Coastal waters from Englewood to Tarpon Springs FL out 20 NM
213 PM EST Tue Jan 13 2026
TONIGHT
North winds 5 to 10 knots. Seas around 2 feet this
evening, then 1 foot or less. Wave Detail: North 2 feet at
4 seconds, becoming north 1 foot at 4 seconds. Bay and inland
waters light chop.
WEDNESDAY
Northwest winds around 10 knots. Seas 1 foot or
less. Wave Detail: North 1 foot at 3 seconds. Bay and inland
waters light chop. A slight chance of showers in the afternoon.
WEDNESDAY NIGHT
West winds 5 to 10 knots, increasing to 15 to
20 knots after midnight. Seas 2 to 3 feet. Wave Detail: West
3 feet at 4 seconds. Bay and inland waters choppy. Showers.
THURSDAY
Northwest winds 20 to 25 knots, increasing to 25 to
30 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet, building to 6 to 9 feet, occasionally to 11 feet in the
afternoon. Wave Detail: Northwest 6 feet at 6 seconds, becoming
northwest 8 feet at 7 seconds. Bay and inland waters very rough.
Showers likely, mainly in the morning.
THURSDAY NIGHT
North winds 25 to 30 knots, diminishing to
20 to 25 knots after midnight. Seas 6 to 9 feet, occasionally to
11 feet, subsiding to 5 to 7 feet, occasionally to 9 feet after
midnight. Wave Detail: Northwest 8 feet at 7 seconds, becoming
north 7 feet at 7 seconds. Bay and inland waters very rough.
FRIDAY
Northeast winds 10 to 15 knots with gusts up to
20 knots, becoming north around 5 knots in the afternoon. Seas
3 to 5 feet, occasionally to 6 feet, subsiding to 2 to 3 feet in
the afternoon. Wave Detail: Northwest 4 feet at 8 seconds and
north 2 feet at 5 seconds, becoming west 3 feet at 7 seconds and
north 1 foot at 4 seconds. Bay and inland waters a moderate chop.
FRIDAY NIGHT
Northeast winds around 5 knots. Seas around
2 feet. Bay and inland waters smooth.
SATURDAY
East winds around 5 knots, becoming west in the
afternoon. Seas around 2 feet in the morning, then 1 foot or
less. Bay and inland waters light chop.
SATURDAY NIGHT
Northwest winds 5 to 10 knots, increasing to
15 to 20 knots after midnight. Seas 2 to 3 feet. Bay and inland
waters choppy. A slight chance of showers in the evening.
SUNDAY
North winds 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Bay and inland waters choppy.
GMZ873-140815
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM
213 PM EST Tue Jan 13 2026
TONIGHT
North winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: North 2 feet at 5 seconds.
WEDNESDAY
Northwest winds around 10 knots. Seas 1 foot or
less. Wave Detail: Northwest 1 foot at 4 seconds. A slight chance
of showers in the afternoon.
WEDNESDAY NIGHT
West winds 10 to 15 knots, increasing to 15 to
20 knots with gusts up to 25 knots after midnight. Seas 2 to
4 feet, occasionally to 5 feet. Wave Detail: West 4 feet at
5 seconds. Showers.
THURSDAY
Northwest winds 20 to 25 knots, increasing to 25 to
30 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet, building to 7 to 9 feet, occasionally to 11 feet in the
afternoon. Wave Detail: Northwest 7 feet at 7 seconds, becoming
northwest 9 feet at 8 seconds. Showers likely, mainly in the
morning.
THURSDAY NIGHT
North winds 20 to 25 knots, diminishing to
15 to 20 knots after midnight. Seas 8 to 9 feet, occasionally to
11 feet, subsiding to 5 to 8 feet, occasionally to 10 feet after
midnight. Wave Detail: North 9 feet at 7 seconds, becoming north
8 feet at 7 seconds.
FRIDAY
Northeast winds 10 to 15 knots, diminishing to around
5 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet, subsiding to 3 to 4 feet, occasionally to 5 feet in the
afternoon. Wave Detail: North 5 feet at 7 seconds, becoming
northwest 4 feet at 6 seconds.
FRIDAY NIGHT
Northeast winds around 5 knots. Seas 2 to 3 feet.
SATURDAY
East winds 5 to 10 knots, becoming west in the
afternoon. Seas around 2 feet. A slight chance of showers in the
afternoon.
SATURDAY NIGHT
Northwest winds 10 to 15 knots. Seas 2 to
3 feet. A slight chance of showers.
SUNDAY
North winds 15 to 20 knots. Seas 2 to 4 feet,
occasionally to 5 feet.
GMZ850-140815
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM
213 PM EST Tue Jan 13 2026
TONIGHT
Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: North 1 foot at 2 seconds. Bay and inland waters
light chop.
WEDNESDAY
West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Northwest 1 foot at 2 seconds. Bay and inland waters
light chop. A chance of showers.
WEDNESDAY NIGHT
West winds 5 to 10 knots, becoming northwest
10 to 15 knots with gusts up to 20 knots after midnight. Seas
1 foot or less, then 2 to 3 feet after midnight. Wave Detail:
West 1 foot at 3 seconds, becoming west 2 feet at 4 seconds. Bay
and inland waters a moderate chop. Showers.
THURSDAY
Northwest winds 15 to 20 knots, increasing to 20 to
25 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. Wave Detail: Northwest 5 feet at 6 seconds. Bay and
inland waters rough. A chance of showers in the morning.
THURSDAY NIGHT
North winds 20 to 25 knots with gusts up to
30 knots, diminishing to 15 to 20 knots after midnight. Seas 3 to
5 feet, occasionally to 6 feet. Wave Detail: North 5 feet at
6 seconds. Bay and inland waters rough.
FRIDAY
Northeast winds 5 to 10 knots, becoming west in the
afternoon. Seas 1 to 2 feet. Wave Detail: West 2 feet at
7 seconds and northeast 1 foot at 3 seconds. Bay and inland
waters light chop.
FRIDAY NIGHT
West winds around 5 knots, becoming southeast
after midnight. Seas 1 to 2 feet in the evening, then 1 foot or
less. Bay and inland waters smooth.
SATURDAY
South winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 1 foot or less, then 1 to 2 feet in the
afternoon. Bay and inland waters light chop. A slight chance of
showers in the afternoon.
SATURDAY NIGHT
West winds 10 to 15 knots, becoming northwest
after midnight. Seas 2 to 3 feet. Bay and inland waters a
moderate chop. A slight chance of showers in the evening.
SUNDAY
Northwest winds 10 to 15 knots. Seas 2 to 3 feet. Bay
and inland waters a moderate chop.
GMZ870-140815
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM
213 PM EST Tue Jan 13 2026
TONIGHT
Northwest winds 5 to 10 knots. Seas around 2 feet this
evening, then 1 foot or less. Wave Detail: North 1 foot at
4 seconds, becoming north 1 foot at 3 seconds.
WEDNESDAY
West winds around 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds. A chance of showers.
WEDNESDAY NIGHT
West winds 10 to 15 knots, becoming northwest
15 to 20 knots after midnight. Seas 2 to 4 feet, occasionally to
5 feet. Wave Detail: West 4 feet at 5 seconds. Showers.
THURSDAY
Northwest winds 20 to 25 knots with gusts up to
30 knots. Seas 5 to 8 feet, occasionally to 10 feet. Wave Detail:
Northwest 8 feet at 7 seconds. A chance of showers in the
morning.
THURSDAY NIGHT
North winds 20 to 25 knots with gusts up to
30 knots, diminishing to 15 to 20 knots after midnight. Seas 5 to
8 feet, occasionally to 10 feet. Wave Detail: North 8 feet at
6 seconds.
FRIDAY
Northeast winds 5 to 10 knots, becoming southeast in
the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave
Detail: Northwest 4 feet at 6 seconds.
FRIDAY NIGHT
South winds 5 to 10 knots. Seas around 2 feet.
SATURDAY
South winds 5 to 10 knots, becoming southwest in the
afternoon. Seas around 2 feet. A slight chance of showers.
SATURDAY NIGHT
Northwest winds 10 to 15 knots, increasing to
15 to 20 knots after midnight. Seas 2 to 3 feet. A slight chance
of showers in the evening.
SUNDAY
Northwest winds 15 to 20 knots. Seas 3 to 4 feet,
occasionally to 5 feet.
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