NDBC has recently revised the NDBC Handbook of Automated Data Quality Control Checks and Procedures. The new document can be found on our Publications page.
National Weather Service Marine Forecast FZUS52 KTBW
FZUS52 KTBW 260034
CWFTBW
Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Ruskin FL
834 PM EDT Tue Mar 25 2025
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.
GMZ800-261315
Synopsis for the coastal waters from Bonita Beach to Suwannee River
834 PM EDT Tue Mar 25 2025
SYNOPSIS
Dry conditions are forecast through the end of the workweek with high pressure across the region. Winds and seas are expected to remain below cautionary levels through the forecast period.
&&
GMZ830-261315
Tampa Bay waters
834 PM EDT Tue Mar 25 2025
TONIGHT
Northwest winds 5 to 10 knots, becoming north late.
Bay and inland waters light chop.
WEDNESDAY
North winds 5 to 10 knots. Bay and inland waters
light chop.
WEDNESDAY NIGHT
North winds 5 to 10 knots, becoming northeast
after midnight. Bay and inland waters light chop.
THURSDAY
Northeast winds 5 to 10 knots. Bay and inland waters
light chop.
THURSDAY NIGHT
East winds 10 to 15 knots. Bay and inland
waters a moderate chop.
FRIDAY
East winds 10 to 15 knots. Bay and inland waters a
moderate chop.
FRIDAY NIGHT
East winds 10 to 15 knots. Bay and inland waters
a moderate chop.
SATURDAY
Southeast winds 10 to 15 knots. Bay and inland waters
a moderate chop. A chance of showers in the afternoon.
Winds and waves higher in and near thunderstorms.
GMZ836-261315
Charlotte Harbor and Pine Island Sound
834 PM EDT Tue Mar 25 2025
TONIGHT
Northwest winds 5 to 10 knots, becoming north late.
Bay and inland waters light chop.
WEDNESDAY
North winds 5 to 10 knots. Bay and inland waters
light chop.
WEDNESDAY NIGHT
North winds around 10 knots, becoming
northeast after midnight. Bay and inland waters light chop.
THURSDAY
Northeast winds 5 to 10 knots. Bay and inland waters
light chop.
THURSDAY NIGHT
East winds 10 to 15 knots. Bay and inland
waters a moderate chop.
FRIDAY
East winds 10 to 15 knots. Bay and inland waters a
moderate chop.
FRIDAY NIGHT
East winds 10 to 15 knots. Bay and inland waters
a moderate chop.
SATURDAY
Southeast winds 10 to 15 knots. Bay and inland waters
a moderate chop. A chance of showers in the afternoon.
Winds and waves higher in and near thunderstorms.
GMZ856-261315
Coastal waters from Bonita Beach to Englewood FL out 20 NM
834 PM EDT Tue Mar 25 2025
TONIGHT
Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 2 seconds and southwest 1 foot
at 5 seconds. Bay and inland waters light chop.
WEDNESDAY
North winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: North 1 foot at 3 seconds and south 1 foot at 4 seconds.
Bay and inland waters light chop.
WEDNESDAY NIGHT
North winds around 10 knots, becoming
northeast after midnight. Seas around 2 feet. Wave Detail: North
2 feet at 4 seconds. Bay and inland waters light chop.
THURSDAY
Northeast winds 5 to 10 knots. Seas around 2 feet in
the morning, then 1 foot or less. Wave Detail: East 1 foot at
2 seconds and northwest 1 foot at 4 seconds, becoming northeast
1 foot at 2 seconds and northwest 1 foot at 4 seconds. Bay and
inland waters light chop.
THURSDAY NIGHT
East winds 10 to 15 knots with gusts up to
20 knots. Seas around 2 feet. Wave Detail: Northeast 2 feet at
3 seconds and northwest 1 foot at 4 seconds. Bay and inland
waters a moderate chop.
FRIDAY
East winds 10 to 15 knots. Seas 2 to 3 feet. Bay and
inland waters a moderate chop.
FRIDAY NIGHT
East winds 10 to 15 knots. Seas 2 to 3 feet. Bay
and inland waters a moderate chop.
SATURDAY
Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Bay
and inland waters a moderate chop. A chance of showers in the
afternoon.
Winds and seas higher in and near thunderstorms.
GMZ876-261315
Waters from Bonita Beach to Englewood FL out 20 to 60 NM
834 PM EDT Tue Mar 25 2025
TONIGHT
North winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Northwest 1 foot at 2 seconds and south 1 foot at
5 seconds.
WEDNESDAY
North winds 5 to 10 knots. Seas around 2 feet in the
morning, then 1 foot or less. Wave Detail: North 1 foot at
3 seconds and south 1 foot at 4 seconds, becoming north 1 foot at
3 seconds and southwest 1 foot at 6 seconds.
WEDNESDAY NIGHT
North winds around 10 knots, becoming
northeast after midnight. Seas around 2 feet. Wave Detail: North
2 feet at 4 seconds.
THURSDAY
Northeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Northeast 1 foot at 4 seconds.
THURSDAY NIGHT
Northeast winds 10 to 15 knots, becoming east
15 to 20 knots after midnight. Seas 2 to 3 feet. Wave Detail:
East 3 feet at 4 seconds and northwest 1 foot at 4 seconds.
FRIDAY
East winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet.
FRIDAY NIGHT
East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 2 to 4 feet, occasionally to
5 feet.
SATURDAY
Southeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. A chance of showers in the afternoon.
GMZ853-261315
Coastal waters from Englewood to Tarpon Springs FL out 20 NM
834 PM EDT Tue Mar 25 2025
TONIGHT
Northwest winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: Northwest 1 foot
at 2 seconds and south 1 foot at 4 seconds, becoming northwest
1 foot at 3 seconds and south 1 foot at 4 seconds. Bay and inland
waters light chop.
WEDNESDAY
North winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northwest 1 foot at 3 seconds and south 1 foot at
5 seconds. Bay and inland waters light chop.
WEDNESDAY NIGHT
North winds 10 to 15 knots, becoming northeast
5 to 10 knots after midnight. Seas around 2 feet. Wave Detail:
North 2 feet at 3 seconds and southwest 1 foot at 6 seconds. Bay
and inland waters a moderate chop.
THURSDAY
East winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot at
2 seconds and northwest 1 foot at 3 seconds. Bay and inland
waters light chop.
THURSDAY NIGHT
Northeast winds 10 to 15 knots, becoming east
after midnight. Seas around 2 feet. Wave Detail: East 2 feet at
3 seconds and northwest 1 foot at 3 seconds. Bay and inland
waters a moderate chop.
FRIDAY
East winds 10 to 15 knots, diminishing to 5 to 10 knots
in the afternoon. Seas around 2 feet. Bay and inland waters a
moderate chop.
FRIDAY NIGHT
East winds 10 to 15 knots. Seas 2 to 3 feet. Bay
and inland waters a moderate chop.
SATURDAY
East winds 10 to 15 knots, becoming southeast 5 to
10 knots in the afternoon. Seas 2 to 3 feet. Bay and inland
waters a moderate chop. A chance of showers in the afternoon.
Winds and seas higher in and near thunderstorms.
GMZ873-261315
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM
834 PM EDT Tue Mar 25 2025
TONIGHT
Northwest winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Northwest 1 foot at 3 seconds and south 1 foot at
4 seconds.
WEDNESDAY
North winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: North 1 foot at 3 seconds and south 1 foot at 5 seconds.
WEDNESDAY NIGHT
North winds 10 to 15 knots, becoming northeast
after midnight. Seas around 2 feet. Wave Detail: North 2 feet at
3 seconds and southwest 1 foot at 6 seconds.
THURSDAY
Northeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: North 1 foot at 4 seconds and southwest 1 foot at
7 seconds.
THURSDAY NIGHT
Northeast winds 10 to 15 knots, becoming east
after midnight. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet
at 4 seconds and southwest 1 foot at 7 seconds.
FRIDAY
East winds 10 to 15 knots. Seas 2 to 3 feet.
FRIDAY NIGHT
East winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 2 to 3 feet.
SATURDAY
Southeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. A slight chance of showers in the
afternoon.
GMZ850-261315
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM
834 PM EDT Tue Mar 25 2025
TONIGHT
Northwest winds 5 to 10 knots, becoming north late.
Seas 1 foot or less. Wave Detail: Southwest 1 foot at 3 seconds
and southwest 1 foot at 7 seconds. Bay and inland waters light
chop.
WEDNESDAY
Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds and southwest 1 foot
at 7 seconds. Bay and inland waters light chop.
WEDNESDAY NIGHT
Northwest winds 5 to 10 knots, becoming
northeast after midnight. Seas 1 foot or less. Wave Detail:
Northwest 1 foot at 3 seconds and southwest 1 foot at 6 seconds.
Bay and inland waters light chop.
THURSDAY
East winds 5 to 10 knots, becoming north in the
afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot at
2 seconds and northwest 1 foot at 3 seconds. Bay and inland
waters light chop.
THURSDAY NIGHT
Northeast winds 5 to 10 knots, becoming east
10 to 15 knots after midnight. Seas 1 foot or less. Wave Detail:
North 1 foot at 2 seconds and southwest 1 foot at 7 seconds. Bay
and inland waters a moderate chop.
FRIDAY
East winds 5 to 10 knots. Seas 1 foot or less. Bay and
inland waters light chop.
FRIDAY NIGHT
East winds 10 to 15 knots. Seas 1 foot or less,
then around 2 feet after midnight. Bay and inland waters a
moderate chop.
SATURDAY
Southeast winds 5 to 10 knots. Seas around 2 feet in
the morning, then 1 foot or less. Bay and inland waters light
chop. A slight chance of showers in the afternoon.
Winds and seas higher in and near thunderstorms.
GMZ870-261315
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM
834 PM EDT Tue Mar 25 2025
TONIGHT
Northwest winds 5 to 10 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: Northwest 1 foot
at 3 seconds and southwest 1 foot at 6 seconds, becoming
northwest 1 foot at 3 seconds and south 1 foot at 4 seconds.
WEDNESDAY
North winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: South 1 foot at 4 seconds and northwest 1 foot at
4 seconds.
WEDNESDAY NIGHT
Northwest winds 5 to 10 knots, becoming
northeast after midnight. Seas around 2 feet. Wave Detail: North
1 foot at 3 seconds and southwest 1 foot at 6 seconds.
THURSDAY
Northeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: North 1 foot at 4 seconds and southwest 1 foot at
7 seconds.
THURSDAY NIGHT
North winds 5 to 10 knots, becoming east 10 to
15 knots with gusts up to 20 knots after midnight. Seas around
2 feet. Wave Detail: East 2 feet at 3 seconds and northwest
1 foot at 3 seconds.
FRIDAY
East winds 10 to 15 knots, diminishing to 5 to 10 knots
in the afternoon. Seas around 2 feet.
FRIDAY NIGHT
Northeast winds 10 to 15 knots, becoming east
after midnight. Seas 2 to 3 feet.
SATURDAY
Southeast winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 2 to 3 feet. A slight chance of
showers in the afternoon.