Coastal Waters Forecast
Issued by NWS Tampa Bay Area, FL

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FZUS52 KTBW 181856
CWFTBW

Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Area - Ruskin FL
256 PM EDT Fri Aug 18 2017

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.

GMZ800-190230-
SYNOPSIS FOR THE COASTAL WATERS FROM BONITA BEACH TO SUWANNEE RIVER-
256 PM EDT Fri Aug 18 2017

.SYNOPSIS...Surface high pressure will remain across the region
through the weekend with light winds and slight seas. Winds are
expected to increase some with easterly surges early next week as
the pressure gradient tightens a bit between low pressure to the
south and high pressure to the north. Otherwise, the primary marine
concern will be daily scattered thunderstorms which may produce
dangerous lightning, locally stronger winds, and choppy seas.

$$

GMZ830-190230-
Tampa Bay waters-
256 PM EDT Fri Aug 18 2017

.TONIGHT...Northwest winds around 10 knots then becoming northeast
around 5 knots late in the evening, then becoming southeast after
midnight. Bay and inland waters a light chop. Wind and waters higher
near scattered thunderstorms in the evening.
.SATURDAY...Southeast winds around 5 knots then becoming southwest
early in the afternoon, then becoming west around 10 knots late in
the afternoon. Bay and inland waters a light chop.
.SATURDAY NIGHT...Northwest winds around 10 knots then becoming
north around 5 knots late in the evening, then becoming east after
midnight. Bay and inland waters a light chop. Isolated
thunderstorms.
.SUNDAY...East winds around 5 knots increasing to around 10 knots
late in the afternoon. Bay and inland waters a light chop. Scattered
thunderstorms.
.SUNDAY NIGHT...East winds around 10 knots. Bay and inland waters a
light chop. Scattered thunderstorms in the evening, then isolated
thunderstorms after midnight.
.MONDAY...East winds around 10 knots. Bay and inland waters a light
chop. Scattered thunderstorms.
.MONDAY NIGHT...East winds around 10 knots. Bay and inland waters a
light chop. Scattered thunderstorms in the evening.
.TUESDAY...East winds around 10 knots. Bay and inland waters a light
chop. Scattered thunderstorms.
.TUESDAY NIGHT...East winds around 10 knots. Bay and inland waters a
light chop. Scattered thunderstorms in the evening. Isolated
thunderstorms after midnight.
.WEDNESDAY...Northeast winds around 10 knots. Bay and inland waters
a light chop. Scattered thunderstorms.

$$

GMZ836-190230-
Charlotte Harbor and Pine Island Sound-
256 PM EDT Fri Aug 18 2017

.TONIGHT...Northwest winds around 10 knots then becoming east around
5 knots after midnight. Bay and inland waters a light chop. Wind and
waters higher near scattered thunderstorms in the evening.
.SATURDAY...East winds around 5 knots then becoming north around
5 knots early in the afternoon, then becoming northwest around
10 knots late in the afternoon. Bay and inland waters a light chop.
.SATURDAY NIGHT...Northeast winds around 10 knots then becoming east
around 5 knots after midnight. Bay and inland waters a light chop.
Scattered thunderstorms.
.SUNDAY...East winds around 10 knots. Bay and inland waters a light
chop. Numerous showers and scattered thunderstorms in the afternoon.
.SUNDAY NIGHT...East winds around 10 knots. Bay and inland waters a
light chop. Numerous showers and scattered thunderstorms in the
evening.
.MONDAY...East winds around 10 knots. Bay and inland waters a light
chop. Scattered thunderstorms.
.MONDAY NIGHT...East winds around 10 knots. Bay and inland waters a
light chop. Scattered thunderstorms in the evening. Isolated
thunderstorms after midnight.
.TUESDAY...East winds around 10 knots. Bay and inland waters a light
chop. Scattered thunderstorms.
.TUESDAY NIGHT...East winds around 10 knots. Bay and inland waters a
light chop. Scattered thunderstorms.
.WEDNESDAY...East winds around 5 knots. Bay and inland waters
smooth. Numerous showers and scattered thunderstorms.

$$

GMZ856-190230-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
256 PM EDT Fri Aug 18 2017

.TONIGHT...Northwest winds around 10 knots then becoming east after
midnight. Seas 2 feet or less. Bay and inland waters a light chop.
Wind and seas higher near isolated thunderstorms in the evening.
.SATURDAY...East winds around 5 knots then becoming north early in
the afternoon, then becoming northwest around 10 knots late in the
afternoon. Seas 2 feet or less. Bay and inland waters a light chop.
.SATURDAY NIGHT...North winds around 10 knots then becoming east
after midnight. Seas 2 feet or less. Bay and inland waters a light
chop. Scattered thunderstorms.
.SUNDAY...East winds around 10 knots. Seas 2 feet or less. Bay and
inland waters a light chop. Scattered thunderstorms.
.SUNDAY NIGHT...East winds 5 to 10 knots increasing to around
15 knots after midnight. Seas 2 feet. Bay and inland waters a
moderate chop. Scattered thunderstorms.
.MONDAY...East winds around 15 knots. Seas 2 to 3 feet. Bay and
inland waters a moderate chop. Scattered thunderstorms.
.MONDAY NIGHT...East winds around 15 knots. Seas 2 feet. Bay and
inland waters a moderate chop. Scattered thunderstorms in the
evening, then isolated thunderstorms after midnight.
.TUESDAY...East winds around 15 knots diminishing to 5 to 10 knots
in the afternoon. Seas 2 feet. Bay and inland waters a moderate
chop. Scattered thunderstorms.
.TUESDAY NIGHT...East winds around 10 knots. Seas 2 feet or less.
Bay and inland waters a light chop. Scattered thunderstorms.
.WEDNESDAY...Southeast winds around 10 knots. Seas 2 feet or less.
Bay and inland waters a light chop. Scattered thunderstorms.

$$

GMZ876-190230-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
256 PM EDT Fri Aug 18 2017

.TONIGHT...North winds around 10 knots then becoming east after
midnight. Seas 2 feet or less.
.SATURDAY...East winds around 5 knots then becoming north late in
the afternoon. Seas 2 feet or less.
.SATURDAY NIGHT...North winds around 10 knots then becoming east
after midnight. Seas 2 feet or less. Isolated thunderstorms.
.SUNDAY...East winds around 10 knots. Seas 2 feet. Scattered
thunderstorms.
.SUNDAY NIGHT...East winds 5 to 10 knots increasing to around
15 knots after midnight. Seas 2 to 3 feet. Scattered thunderstorms.
.MONDAY...East winds around 15 knots. Seas 2 to 4 feet. Scattered
thunderstorms.
.MONDAY NIGHT...East winds around 15 knots. Seas 2 to 3 feet.
Scattered thunderstorms in the evening, then isolated thunderstorms
after midnight.
.TUESDAY...East winds around 15 knots. Seas 2 to 3 feet. Scattered
thunderstorms.
.TUESDAY NIGHT...East winds around 10 knots. Seas 2 feet. Scattered
thunderstorms.
.WEDNESDAY...East winds around 10 knots. Seas 2 feet. Scattered
thunderstorms.

$$

GMZ853-190230-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
256 PM EDT Fri Aug 18 2017

.TONIGHT...Northwest winds around 10 knots then becoming southeast
around 5 knots after midnight. Seas 2 feet or less. Bay and inland
waters a light chop. Wind and seas higher near isolated thunderstorms
in the evening.
.SATURDAY...East winds around 5 knots then becoming northwest around
5 knots early in the afternoon, then increasing to around 10 knots
late in the afternoon. Seas 2 feet or less. Bay and inland waters a
light chop.
.SATURDAY NIGHT...North winds around 10 knots then becoming
northeast around 5 knots after midnight, then becoming east around
5 knots toward morning. Seas 2 feet or less. Bay and inland waters a
light chop. Isolated thunderstorms.
.SUNDAY...East winds around 5 knots. Seas 2 feet or less. Bay and
inland waters smooth. Scattered thunderstorms.
.SUNDAY NIGHT...East winds 5 to 10 knots increasing to around
15 knots after midnight. Seas 2 feet. Bay and inland waters a
moderate chop. Scattered thunderstorms.
.MONDAY...East winds around 15 knots diminishing to 5 to 10 knots
late in the afternoon. Seas 2 feet. Bay and inland waters a moderate
chop. Scattered thunderstorms.
.MONDAY NIGHT...East winds 5 to 10 knots increasing to around
15 knots after midnight. Seas 2 feet. Bay and inland waters a
moderate chop. Scattered thunderstorms in the evening. Isolated
thunderstorms after midnight.
.TUESDAY...East winds around 15 knots diminishing to 5 to 10 knots
in the afternoon. Seas 2 feet. Bay and inland waters a moderate
chop. Isolated thunderstorms.
.TUESDAY NIGHT...East winds around 10 knots. Seas 2 feet or less.
Bay and inland waters a light chop. Isolated thunderstorms.
.WEDNESDAY...Northeast winds around 10 knots. Seas 2 feet or less.
Bay and inland waters a light chop. Scattered thunderstorms.

$$

GMZ873-190230-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
256 PM EDT Fri Aug 18 2017

.TONIGHT...North winds around 5 knots then becoming southeast after
midnight. Seas 2 feet or less. Wind and seas higher near isolated
thunderstorms in the evening.
.SATURDAY...Southeast winds around 5 knots then becoming north late
in the afternoon. Seas 2 feet or less.
.SATURDAY NIGHT...Northwest winds around 10 knots then becoming
northeast around 5 knots in the late evening and overnight. Seas
2 feet or less. Isolated thunderstorms.
.SUNDAY...East winds around 10 knots. Seas 2 feet or less. Isolated
thunderstorms in the morning, then scattered thunderstorms in the
afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots increasing to around
15 knots after midnight. Seas 2 feet. Scattered thunderstorms.
.MONDAY...East winds around 15 knots. Seas 2 to 3 feet. Scattered
thunderstorms.
.MONDAY NIGHT...East winds around 15 knots. Seas 2 to 3 feet.
Scattered thunderstorms.
.TUESDAY...East winds around 15 knots diminishing to 5 to 10 knots
in the afternoon. Seas 2 to 3 feet. Scattered thunderstorms in the
morning. Isolated thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds around 10 knots. Seas 2 feet. Scattered
thunderstorms.
.WEDNESDAY...Northeast winds around 10 knots. Seas 2 feet. Scattered
thunderstorms.

$$

GMZ850-190230-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
256 PM EDT Fri Aug 18 2017

.TONIGHT...West winds around 5 knots then becoming south after
midnight. Seas 2 feet or less. Bay and inland waters smooth.
Wind and seas higher near scattered thunderstorms in the evening,
then isolated thunderstorms after midnight.
.SATURDAY...Southwest winds around 5 knots then becoming west around
10 knots late in the afternoon. Seas 2 feet or less. Bay and inland
waters a light chop. Isolated thunderstorms.
.SATURDAY NIGHT...Northwest winds around 10 knots diminishing to
around 5 knots late in the evening, then becoming northeast after
midnight then becoming east toward morning. Seas 2 feet or less. Bay
and inland waters a light chop. Isolated thunderstorms in the
evening, then scattered thunderstorms after midnight.
.SUNDAY...East winds around 5 knots. Seas 2 feet or less. Bay and
inland waters smooth. Isolated thunderstorms in the morning, then
scattered thunderstorms in the afternoon.
.SUNDAY NIGHT...East winds 5 to 10 knots then becoming southeast
around 15 knots after midnight, then diminishing to 5 to 10 knots
toward morning. Seas 2 feet. Bay and inland waters a moderate chop.
Scattered thunderstorms.
.MONDAY...East winds around 10 knots. Seas 2 feet. Bay and inland
waters a light chop. Scattered thunderstorms.
.MONDAY NIGHT...East winds 5 to 10 knots increasing to around
15 knots after midnight. Seas 2 feet. Bay and inland waters a
moderate chop. Scattered thunderstorms in the evening. Isolated
thunderstorms after midnight.
.TUESDAY...East winds around 10 knots. Seas 2 feet. Bay and inland
waters a light chop. Isolated thunderstorms in the morning, then
scattered thunderstorms in the afternoon.
.TUESDAY NIGHT...Northeast winds around 10 knots then becoming east
after midnight. Seas 2 feet or less. Bay and inland waters a light
chop. Isolated thunderstorms.
.WEDNESDAY...East winds around 10 knots then becoming northwest
around 5 knots in the afternoon. Seas 2 feet or less. Bay and inland
waters a light chop. Isolated thunderstorms.

$$

GMZ870-190230-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
256 PM EDT Fri Aug 18 2017

.TONIGHT...West winds around 5 knots. Seas 2 feet or less. Wind and
seas higher near isolated thunderstorms.
.SATURDAY...West winds around 5 knots. Seas 2 feet or less.
Scattered thunderstorms in the morning, then isolated thunderstorms
in the afternoon.
.SATURDAY NIGHT...Northwest winds around 10 knots diminishing to
around 5 knots late in the evening, then becoming north after
midnight then becoming northeast toward morning. Seas 2 feet or
less. Isolated thunderstorms after midnight.
.SUNDAY...East winds around 5 knots. Seas 2 feet or less. Isolated
thunderstorms.
.SUNDAY NIGHT...East winds 5 to 10 knots then becoming southeast
around 15 knots after midnight. Seas 2 feet. Scattered
thunderstorms.
.MONDAY...East winds around 10 knots. Seas 2 feet. Scattered
thunderstorms.
.MONDAY NIGHT...East winds 5 to 10 knots increasing to around
15 knots after midnight. Seas 2 feet. Scattered thunderstorms.
.TUESDAY...East winds around 15 knots diminishing to 5 to 10 knots
in the afternoon. Seas 2 to 3 feet. Isolated thunderstorms.
.TUESDAY NIGHT...East winds around 10 knots. Seas 2 feet. Isolated
thunderstorms.
.WEDNESDAY...Northeast winds around 10 knots. Seas 2 feet. Isolated
thunderstorms.

$$



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