Apalachicola to Destin FL out 20 NM Marine Forecast
| Today...Northeast Winds 5 To 10 Knots, Becoming South Late. Waves 1 Foot Or Less. Wave Detail: East 1 Foot At 2 Seconds. Protected Waters A Light Chop. A Slight Chance Of Showers. A Slight Chance Of Thunderstorms This Morning. A Slight Chance Of Thunderstorms Late. |
| Tonight...South Winds Around 5 Knots, Becoming Northeast After Midnight. Waves 1 Foot Or Less. Protected Waters Smooth. A Slight Chance Of Showers And Thunderstorms. |
| Tuesday...Northeast Winds 5 To 10 Knots, Becoming Southeast In The Afternoon. Waves 1 Foot Or Less. Wave Detail: East 1 Foot At 2 Seconds. Protected Waters A Light Chop. A Chance Of Showers With A Slight Chance Of Thunderstorms In The Morning, Then A Slight Chance Of Showers In The Afternoon. |
| Tuesday Night...Northeast Winds 5 To 10 Knots. Waves 1 Foot Or Less. Protected Waters A Light Chop. A Slight Chance Of Showers After Midnight. |
| Wednesday...Northeast Winds 5 To 10 Knots, Becoming East In The Afternoon. Waves 1 Foot Or Less. Wave Detail: Northeast 1 Foot At 2 Seconds. Protected Waters A Light Chop. A Slight Chance Of Showers. |
| Wednesday Night...Northeast Winds 5 To 10 Knots, Increasing To 10 To 15 Knots After Midnight. Waves 1 Foot Or Less, Then Around 2 Feet After Midnight. Wave Detail: East 1 Foot At 2 Seconds, Becoming Northeast 1 Foot At 3 Seconds. Protected Waters A Moderate Chop. A Chance Of Showers. A Chance Of Thunderstorms, Mainly In The Evening. |
| Thursday...Northeast Winds 15 To 20 Knots. Seas 2 To 3 Feet. Protected Waters Choppy. A Slight Chance Of Showers And Thunderstorms In The Morning. |
| Thursday Night...Northeast Winds 15 To 20 Knots. Seas 2 To 3 Feet. Protected Waters Choppy. A Slight Chance Of Showers In The Evening. |
| Friday...Northeast Winds 15 To 20 Knots. Seas 2 To 4 Feet. Protected Waters Choppy. |
| Friday Night...Northeast Winds 5 To 10 Knots, Increasing To 10 To 15 Knots After Midnight. Seas 2 To 3 Feet. Protected Waters A Moderate Chop. Winds And Waves Higher In And Near Thunderstorms. |
| Area Forecast Discussion National Weather Service Tallahassee FL 634am EDT Monday September 21 2026 .SHORT TERM... (Today and Tonight) Issued at 323am EDT Monday September 21 2026 The last day of the Summer Solstice will not feel like a transition to fall thanks to an unseasonably warm/humid airmass fostered by a lingering mid-upper low over the Eastern Gulf. This feature should serve as a focus for another round of afternoon- evening showers and thunderstorms. The greatest convective potential is along/south of the I-10 corridor where prevailing NE winds converge with the Gulf coast seabreeze. Atlantic seabreeze-driven convection also aims to push westward into the Lower I-75 corridor down to the Eastern FL Big Bend. We will also have to monitor trends across the Upper MS Valley where a subtle shortwave acts as "wildcard" for thunderstorms to our west/NW where an Storm Prediction Center Marginal Risk (level 1 of 5) stretches toward I- 85. The main threats are strong-gusty winds (isolated severe downbursts possible), frequent lightning, and small hail. High temperatures are forecast to be around 90 degrees with heat indices in the mid 90s to low 100s. Low temperatures drop to the low 70s. These values are well above normal for late September. Long Term (Tuesday through Sunday) Issued at 323am EDT Monday September 21 2026 The aforementioned mid-upper low loses definition on Tuesday as a northern stream upper trough digs down to the OH-TN Valley. Rain chances decrease in response with only isolated to scattered showers and thunderstorms expected. Convective forcing should be from the seabreeze and a pre-frontal surface trough from the NW. The latter is attendant to an Storm Prediction Center Marginal Risk spreads into I-185. On Wednesday a front dropping in from the north serves as the primary focus for convection. The highest rain chances are along/NE of the I-10 corridor and the SE FL Big Bend. A drying/cooling trend more akin to early Autumn ensues the remainder of the forecast period following frontal passage as a less humid airmass filters in via brisk NE winds. High and low temperatures prior to the front are forecast to be in the low 90s & low 70s - Tuesday through Thursday morning. Thereafter, highs/lows drop to the 80s/60s, which are closer to normal for the last week of September. Marine Issued at 323am EDT Monday September 21 2026 Prevailing northeast winds are forecast outside of daily afternoon seabreezes the next several days. Cautionary to perhaps advisory level conditions arrive on Thursday following frontal passage. Expect favorable boating through mid-week away from thunderstorms. Fire Weather Issued at 323am EDT Monday September 21 2026 The main fire weather concerns are daily afternoon scattered thunderstorms the next 3 days. Gusty, erratic winds, frequent lightning, and locally wetting rains are possible. Otherwise, expect unseasonably hot conditions with peak heat indices in the mid 90s to low 100s. Prevailing NE winds continue with a daily afternoon seabreeze inducing a southerly wind shift. Hydrology Issued at 323am EDT Monday September 21 2026 There are no significant hydrological concerns the next several days. Thunderstorms will be capable of producing localized nuisance flooding, or ponding of water. Dry weather is expected late this week following frontal passage. NOAA Tallahassee FL Office: Watches - Warnings - Advisories FL...None. GA...None. AL...None. GM...None. |
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