Straits of Florida from Ocean Reef to Craig Key out 20 NM Marine Forecast
| Overnight...East Winds 5 To 10 Knots. Seas Around 1 Foot. Wave Detail: East 1 Foot At 2 Seconds. A Slight Chance Of Showers And Thunderstorms. |
| Wednesday...East Winds Near 10 Knots. Seas 1 To 2 Feet. Wave Detail: East 2 Feet At 4 Seconds. A Slight Chance Of Showers And Thunderstorms. |
| Wednesday Night...East Winds 10 To 15 Knots. Seas 2 To 3 Feet. Wave Detail: Northeast To East 3 Feet At 4 Seconds. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Thursday...East To Southeast Winds Near 10 Knots. Seas 2 To 3 Feet. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Thursday Night...East To Southeast Winds 10 To 15 Knots. Seas 2 To 3 Feet. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Friday...East To Southeast Winds 5 To 10 Knots. Seas Around 2 Feet. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Friday Night...East To Southeast Winds 10 To 15 Knots. Seas 2 To 3 Feet. A Chance Of Showers And Thunderstorms. |
| Saturday...East To Southeast Winds Near 10 Knots. Seas Around 2 Feet. A Chance Of Showers And Thunderstorms. |
| Saturday Night...East To Southeast Winds 10 To 15 Knots. Seas 2 To 3 Feet. A Chance Of Showers And Thunderstorms. |
| Sunday...East To Southeast Winds 5 To 10 Knots. Seas Around 2 Feet. A Chance Of Showers And Thunderstorms. |
| Sunday Night...East To Southeast Winds Near 10 Knots. Seas 2 To 3 Feet. A Chance Of Thunderstorms With A Slight Chance Of Showers. |
| Area Forecast Discussion National Weather Service Key West FL 1016pm EDT Tuesday September 8 2026 Issued at 1016pm EDT Tuesday September 8 2026 A quiet late afternoon came to an end this evening over the waters north of the Florida Keys. Shortly before sunset, isolated showers rapidly developed into thunderstorms just north of Key West. Additional thunderstorms that developed over the Everglades also sent outflow boundaries towards the Keys, one capable of generating wind gusts up to 34 knots. This burst of convection is why, despite a nearly clear radar for most of the day, we have been keeping shower chances near normal. Typical weather conditions for the Keys in September means even tiny showers can rapidly build into 40,000 to 50,000 ft behemoths. Expect showers that do form overnight to develop and collapse rapidly. Away from the nearby showers and thunderstorms, conditions remain relatively benign tonight. Anemometers along the reef were too far from the thunderstorms to observe downdrafts. Temperatures along the Keys are slowly decreasing towards the lower 80s. CIMSS-MIMIC PWAT (Precipitable Water) estimates still calculate over 2 inches over the Florida Keys. Nighttime showers have also been able to generate layers of cirrus clouds that will linger over the waters surrounding the island chain. Surface winds are forecast to become prevailing east to southeasterlies as the Atlantic ridge lifts north, away from Southern Florida. We may see shower development ahead of freshening breezes. However, for the typical person in the Keys? Tonight, expect lows in the lower to mid 80s once again, light winds, and short lived showers. Tomorrow, brace for highs near 90, dew points in the upper 70s, heat indices from 100 to 105 degrees, and a chance of showers. Marine Issued at 1016pm EDT Tuesday September 8 2026 No watches, warnings, or advisories are in effect for the Florida Keys coastal waters. From synopsis, Florida Keys coastal waters will initially remain under a broad nebulous pressure pattern tonight, leading to light and variable winds. By early Wednesday, the western extent of the Atlantic Ridge will begin building in and allow breezes to become more easterly while freshening to gentle to moderate. Waves of low- level moisture pushing across the Keys will support elevated rain and thunder chances through Sunday. NOAA Key West FL Office: Watches - Warnings - Advisories FL...None. GM...None. |
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