Charlotte Harbor and Pine Island Sound Marine Forecast
| Rest Of Today...Northwest Winds 10 To 15 Knots. Bay And Inland Waters A Moderate Chop. Scattered Showers And Thunderstorms. |
| Tonight...Northwest Winds 10 To 15 Knots, Diminishing To 5 To 10 Knots After Midnight. Bay And Inland Waters A Moderate Chop. Scattered Showers And Thunderstorms In The Evening. |
| Thursday...Northwest Winds 5 To 10 Knots. Bay And Inland Waters Light Chop. Isolated Showers And Thunderstorms In The Morning, Then Scattered Showers And Thunderstorms In The Afternoon. |
| Thursday Night...Northwest Winds 5 To 10 Knots, Becoming South After Midnight. Bay And Inland Waters Light Chop. Scattered Showers And Thunderstorms, Mainly In The Evening. |
| Friday...Southwest Winds Around 5 Knots, Becoming West In The Afternoon. Bay And Inland Waters Light Chop. Scattered Showers. Isolated Thunderstorms In The Morning, Then Scattered Thunderstorms In The Afternoon. |
| Friday Night...Southwest Winds 5 To 10 Knots. Bay And Inland Waters Light Chop. Isolated Thunderstorms. Scattered Showers, Mainly In The Evening. |
| Saturday...Southwest Winds 5 To 10 Knots. Bay And Inland Waters Light Chop. Isolated Showers In The Morning. |
| Saturday Night...West Winds 5 To 10 Knots, Becoming Southwest After Midnight. Bay And Inland Waters Light Chop. |
| Sunday...Southwest Winds 5 To 10 Knots. Bay And Inland Waters Light Chop. Isolated Showers And Thunderstorms In The Afternoon. Winds And Waves Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service Tampa Bay Ruskin FL 805pm EDT Wednesday August 19 2026 Issued at 803pm EDT Wednesday August 19 2026 A few thunderstorms continue across the region this evening as the sun sets. However, activity should wind down over the next few hours as energy from daytime heating fades. The expectation is for an overall quiet night before thunderstorms begin developing earlier tomorrow with a westerly flow persisting. Overall, the forecast looks on track. Warm and humid conditions continue to be a concern, with another heat advisory likely needed again tomorrow. Upper level low over Hudson Bay producing longwave trough through the Ohio River Valley into the Deep South continues to slowly weaken the upper heat dome ridge over the region through the rest of the week. Expect the high heat index values into Thu before increased cloud cover and slightly lower temps and RHs return back to around normal FL warm and humid summertime conditions. At the surface, the high pressure ridge axis over S FL and the S Gulf will weekend but keep the generally westerly low level flow in place with morning showers and a few storms developing over the E Gulf waters and moving inland during the late morning hours, then becoming more widespread in the afternoons as the convection moves inland. With upper troughiness into the Deep South expect several vort maxes, upper energy and instability to rotate overhead at times enhancing storm coverage or intensity thru the weekend. Some pockets of residual drier air aloft are also expected to remain over the region further complicating Probability of Precipitation coverage as well. Will keep near normal temps and Probability of Precipitation over the weekend and early next week. Marine High pressure over the Southern Gulf keeping westerly onshore flow with winds around 10-15 knots with higher gusts through the day which will increase wave activity along the beaches. Winds begin to subside Thursday into the weekend allowing seas to subside. Seas may be choppier as the afternoon seabreeze develops and persists into the weekend. Expect overnight and early morning showers/storms will be possible through the period. Fire Weather High pressure over the region will keep the very warm and humid conditions in place across fire districts. There will be chances for showers and storms in the morning near the coast, before pushing inland and become more widespread as onshore flow prevails. The main weather concern continues to be the heat and gusty erratic afternoon thunderstorm winds. Sea Breeze Thunderstorm Regime For Thursday: 1 Sea Breeze Thunderstorm Regime For Friday: 4 For additional information on sea breeze regimes, go to: https://www.weather.gov/tbw/ThunderstormClimatology NOAA Tampa FL Office: Watches - Warnings - Advisories FL...None. Gulf waters...None. |
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