


Coastal Waters Forecast
Issued by NWS Tampa Bay Area, FL
Issued by NWS Tampa Bay Area, FL
815 FZUS52 KTBW 171826 CWFTBW Coastal Waters Forecast for Florida National Weather Service Tampa Bay Ruskin FL 226 PM EDT Sun Aug 17 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. GMZ800-180700- Synopsis for the coastal waters from Bonita Beach to Suwannee River- 226 PM EDT Sun Aug 17 2025 .SYNOPSIS... Light winds and seas continue with high pressure directly overhead. However, some thunderstorms should be expected near and along the coast during the afternoon and evening, with additional thunderstorms forming offshore overnight and towards the morning hours. By mid-week, the flow will shift to the NE and then to the SW, with a slight increase in winds and seas likely. Scattered thunderstorms will remain possible, becoming more prevalent by late-week. && $$ GMZ830-180700- Tampa Bay waters- 226 PM EDT Sun Aug 17 2025 .TONIGHT...Northwest winds 5 to 10 knots, becoming east late this evening and overnight. Bay and inland waters light chop. Numerous showers and thunderstorms early this evening, then scattered showers and thunderstorms late this evening. .MONDAY...East winds around 5 knots, becoming west in the afternoon. Bay and inland waters light chop. Scattered showers and thunderstorms in the afternoon. .MONDAY NIGHT...North winds 5 to 10 knots, becoming east after midnight. Bay and inland waters light chop. Numerous showers and thunderstorms, mainly in the evening. .TUESDAY...Northeast winds 5 to 10 knots. Bay and inland waters light chop. Scattered showers and thunderstorms in the afternoon. .TUESDAY NIGHT...North winds 5 to 10 knots. Bay and inland waters light chop. Scattered showers and thunderstorms, mainly in the evening. .WEDNESDAY...North winds 5 to 10 knots. Bay and inland waters light chop. Scattered showers and thunderstorms in the afternoon. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Bay and inland waters light chop. Isolated showers and thunderstorms. .THURSDAY...West winds 5 to 10 knots. Bay and inland waters light chop. Scattered showers and thunderstorms. .THURSDAY NIGHT...West winds 5 to 10 knots. Bay and inland waters light chop. Scattered showers and thunderstorms, mainly in the evening. .FRIDAY...Southwest winds 5 to 10 knots. Bay and inland waters light chop. Scattered showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$ GMZ836-180700- Charlotte Harbor and Pine Island Sound- 226 PM EDT Sun Aug 17 2025 .TONIGHT...Northwest winds 5 to 10 knots, becoming northeast late this evening and overnight. Bay and inland waters light chop. Scattered showers and thunderstorms this evening. .MONDAY...Southeast winds around 5 knots, becoming west in the afternoon. Bay and inland waters light chop. Scattered showers and thunderstorms in the afternoon. .MONDAY NIGHT...North winds 5 to 10 knots, becoming northeast after midnight. Bay and inland waters light chop. Scattered showers and thunderstorms. .TUESDAY...Northeast winds around 5 knots, becoming northwest in the afternoon. Bay and inland waters light chop. Numerous showers and thunderstorms in the afternoon. .TUESDAY NIGHT...Northwest winds 5 to 10 knots, becoming northeast after midnight. Bay and inland waters light chop. Scattered showers and thunderstorms. .WEDNESDAY...North winds around 5 knots, becoming west 10 to 15 knots in the afternoon. Bay and inland waters a moderate chop. Isolated showers and thunderstorms. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Bay and inland waters light chop. Isolated showers and thunderstorms. .THURSDAY...West winds 5 to 10 knots. Bay and inland waters light chop. Scattered showers and thunderstorms. .THURSDAY NIGHT...West winds 5 to 10 knots. Bay and inland waters light chop. Scattered showers and thunderstorms, mainly in the evening. .FRIDAY...Southwest winds 5 to 10 knots. Bay and inland waters light chop. Scattered showers and thunderstorms. Winds and waves higher in and near thunderstorms. $$ GMZ856-180700- Coastal waters from Bonita Beach to Englewood FL out 20 NM- 226 PM EDT Sun Aug 17 2025 .TONIGHT...Northwest winds around 5 knots, becoming northeast after midnight. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 3 seconds. Bay and inland waters smooth. Scattered showers and thunderstorms, mainly this evening. .MONDAY...East winds around 5 knots, becoming west in the afternoon. Seas 1 foot or less. Wave Detail: West 1 foot at 2 seconds. Bay and inland waters light chop. Isolated showers and thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. .MONDAY NIGHT...Northwest winds 5 to 10 knots, becoming northeast after midnight. Seas 1 foot or less. Wave Detail: North 1 foot at 2 seconds. Bay and inland waters light chop. Scattered showers and thunderstorms. .TUESDAY...Northeast winds around 5 knots, becoming northwest in the afternoon. Seas 1 foot or less. Wave Detail: North 1 foot at 3 seconds. Bay and inland waters light chop. Isolated showers and thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. .TUESDAY NIGHT...Northwest winds around 10 knots, becoming north after midnight. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 3 seconds. Bay and inland waters light chop. Scattered showers and thunderstorms. .WEDNESDAY...North winds 5 to 10 knots, becoming northwest in the afternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 3 seconds. Bay and inland waters light chop. Isolated showers and thunderstorms. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. Bay and inland waters light chop. Isolated showers and thunderstorms. .THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less. Bay and inland waters light chop. Scattered showers and thunderstorms. .THURSDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. Bay and inland waters light chop. Scattered showers and thunderstorms. .FRIDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. Bay and inland waters light chop. Scattered showers and thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ876-180700- Waters from Bonita Beach to Englewood FL out 20 to 60 NM- 226 PM EDT Sun Aug 17 2025 .TONIGHT...Northwest winds around 5 knots, becoming northeast after midnight. Seas 1 foot or less. Wave Detail: Northwest 1 foot at 3 seconds. Isolated showers and thunderstorms this evening, then scattered showers and thunderstorms after midnight. .MONDAY...Southeast winds around 5 knots, becoming west around 5 knots in the afternoon. Seas 1 foot or less. Scattered showers and thunderstorms. .MONDAY NIGHT...Northwest winds 5 to 10 knots, becoming northeast after midnight. Seas 1 foot or less. Wave Detail: North 1 foot at 2 seconds. Scattered showers and thunderstorms. .TUESDAY...North winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: North 1 foot at 2 seconds. Scattered showers and thunderstorms. .TUESDAY NIGHT...North winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: North 1 foot at 3 seconds. Scattered showers and thunderstorms. .WEDNESDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: North 1 foot at 3 seconds. Scattered showers and thunderstorms. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. Isolated showers and thunderstorms in the evening, then scattered showers and thunderstorms after midnight. .THURSDAY...West winds around 5 knots. Seas 1 foot or less. Scattered showers and thunderstorms. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. Scattered showers and thunderstorms. .FRIDAY...Southwest winds around 5 knots. Seas 1 foot or less. Scattered showers and thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ853-180700- Coastal waters from Englewood to Tarpon Springs FL out 20 NM- 226 PM EDT Sun Aug 17 2025 .TONIGHT...Northwest winds 5 to 10 knots, becoming east after midnight. Seas 1 foot or less. Wave Detail: North 1 foot at 3 seconds. Bay and inland waters light chop. Scattered showers and thunderstorms early this evening, then isolated showers and thunderstorms late this evening and overnight. .MONDAY...East winds around 5 knots, becoming west in the afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. Bay and inland waters light chop. Isolated showers and thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. .MONDAY NIGHT...North winds 5 to 10 knots, becoming east after midnight. Seas 1 foot or less. Wave Detail: North 1 foot at 2 seconds. Bay and inland waters light chop. Scattered showers and thunderstorms. .TUESDAY...Northeast winds 5 to 10 knots, becoming north in the afternoon. Seas 1 foot or less. Wave Detail: North 1 foot at 2 seconds. Bay and inland waters light chop. Isolated showers and thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. .TUESDAY NIGHT...North winds around 10 knots, becoming northeast after midnight. Seas 1 foot or less. Wave Detail: North 1 foot at 3 seconds. Bay and inland waters light chop. Scattered showers and thunderstorms. .WEDNESDAY...Northeast winds 5 to 10 knots, becoming northwest in the afternoon. Seas 1 foot or less. Wave Detail: North 1 foot at 3 seconds. Bay and inland waters light chop. Isolated showers and thunderstorms. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. Bay and inland waters light chop. Isolated showers and thunderstorms. .THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less. Bay and inland waters light chop. Scattered showers and thunderstorms. .THURSDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. Bay and inland waters light chop. Scattered showers and thunderstorms. .FRIDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. Bay and inland waters light chop. Scattered showers and thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ873-180700- Waters from Englewood to Tarpon Springs FL out 20 to 60 NM- 226 PM EDT Sun Aug 17 2025 .TONIGHT...North winds around 5 knots, becoming northeast after midnight. Seas 1 foot or less. Wave Detail: North 1 foot at 3 seconds. Isolated showers and thunderstorms this evening, then scattered showers and thunderstorms after midnight. .MONDAY...Southeast winds around 5 knots, becoming southwest in the afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. Scattered showers and thunderstorms. .MONDAY NIGHT...North winds 5 to 10 knots, becoming northeast after midnight. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. Scattered showers and thunderstorms. .TUESDAY...Northeast winds 5 to 10 knots, becoming north in the afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 3 seconds. Scattered showers and thunderstorms. .TUESDAY NIGHT...North winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: North 1 foot at 3 seconds. Scattered showers and thunderstorms. .WEDNESDAY...North winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: North 1 foot at 3 seconds. Scattered showers and thunderstorms. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. Isolated showers and thunderstorms in the evening, then scattered showers and thunderstorms after midnight. .THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less. Scattered showers and thunderstorms. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. Scattered showers and thunderstorms. .FRIDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. Numerous showers and thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ850-180700- Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM- 226 PM EDT Sun Aug 17 2025 .TONIGHT...North winds around 5 knots, becoming east late this evening and overnight. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. Bay and inland waters light chop. Numerous showers and thunderstorms early this evening, then scattered showers and thunderstorms late this evening. Isolated showers and thunderstorms after midnight. .MONDAY...East winds 5 to 10 knots, becoming northwest in the afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at 2 seconds. Bay and inland waters light chop. Isolated showers and thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. Bay and inland waters light chop. Scattered showers and thunderstorms. .TUESDAY...Northeast winds 5 to 10 knots, becoming north in the afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. Bay and inland waters light chop. Isolated showers and thunderstorms in the morning, then scattered showers and thunderstorms in the afternoon. .TUESDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: North 1 foot at 2 seconds. Bay and inland waters light chop. Scattered showers and thunderstorms, mainly in the evening. .WEDNESDAY...North winds 5 to 10 knots, becoming northwest in the afternoon. Seas 1 foot or less. Wave Detail: North 1 foot at 2 seconds. Bay and inland waters light chop. Isolated showers and thunderstorms. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. Bay and inland waters light chop. Isolated showers and thunderstorms in the evening, then scattered showers and thunderstorms after midnight. .THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less. Bay and inland waters light chop. Scattered showers and thunderstorms. .THURSDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. Bay and inland waters light chop. Scattered showers and thunderstorms. .FRIDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less. Bay and inland waters light chop. Scattered showers and thunderstorms. Winds and seas higher in and near thunderstorms. $$ GMZ870-180700- Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM- 226 PM EDT Sun Aug 17 2025 .TONIGHT...North winds around 5 knots, becoming east late. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. Scattered showers and thunderstorms. .MONDAY...East winds 5 to 10 knots, becoming northeast in the afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at 2 seconds. Scattered showers and thunderstorms. .MONDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: Northeast 1 foot at 2 seconds. Scattered showers and thunderstorms. .TUESDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Wave Detail: East 1 foot at 3 seconds. Scattered showers and thunderstorms. .TUESDAY NIGHT...North winds 5 to 10 knots, becoming northeast after midnight. Seas 1 foot or less. Wave Detail: North 1 foot at 3 seconds. Scattered showers and thunderstorms. .WEDNESDAY...Northeast winds 5 to 10 knots, becoming northwest in the afternoon. Seas 1 foot or less. Wave Detail: North 1 foot at 2 seconds. Scattered showers and thunderstorms. .WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less. Scattered showers and thunderstorms. .THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less. Scattered showers and thunderstorms. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or less. Scattered showers and thunderstorms. .FRIDAY...Southwest winds around 5 knots. Seas 1 foot or less. Numerous showers and thunderstorms. Winds and seas higher in and near thunderstorms. $$