Straits of Florida from west end of Seven Mile Bridge to south of Halfmoon Shoal out 20 NM Marine Forecast
| Tonight...Northeast Winds Near 10 Knots, Becoming Northeast To East And Decreasing To 5 To 10 Knots. Seas 2 To 3 Feet. Wave Detail: Northeast 3 Feet At 11 Seconds And Northwest 2 Feet At 7 Seconds. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Thursday...Northeast Winds 5 To 10 Knots, Increasing To 10 To 15 Knots. Seas 3 To 5 Feet, Occasionally To 6 Feet. Wave Detail: Northeast 3 Feet At 11 Seconds And Northwest 2 Feet At 7 Seconds. A Chance Of Showers With A Slight Chance Of Thunderstorms. |
| Thursday Night...Northeast To East Winds Near 20 Knots. Seas 4 To 6 Feet, Occasionally To 8 Feet. Wave Detail: Northeast 4 Feet At 5 Seconds And Northeast 3 Feet At 11 Seconds. A Slight Chance Of Showers. |
| Friday...Northeast To East Winds 20 To 25 Knots. Seas 5 To 7 Feet, Occasionally To 9 Feet. A Slight Chance Of Showers. |
| Friday Night...Northeast To East Winds 20 To 25 Knots. Seas 6 To 8 Feet, Occasionally To 10 Feet. A Slight Chance Of Showers. |
| Saturday...Northeast To East Winds 20 To 25 Knots. Seas 6 To 8 Feet, Occasionally To 10 Feet. A Slight Chance Of Showers. |
| Saturday Night...Northeast To East Winds 20 To 25 Knots. Seas 6 To 8 Feet, Occasionally To 10 Feet. A Slight Chance Of Showers. |
| Sunday...Northeast To East Winds 20 To 25 Knots. Seas 6 To 8 Feet, Occasionally To 10 Feet. |
| Sunday Night...Northeast To East Winds 20 To 25 Knots. Seas 6 To 8 Feet, Occasionally To 10 Feet |
| Monday...East Winds 20 To 25 Knots. Seas 6 To 8 Feet, Occasionally To 10 Feet. |
| Monday Night...East Winds 20 To 25 Knots. Seas 6 To 8 Feet, Occasionally To 10 Feet. |
| Area Forecast Discussion National Weather Service Key West FL 125pm EDT Wednesday April 8 2026 .PREVIOUS Issued at 430am EDT Wednesday April 8 2026 A messy weather pattern will greet those across the Florida Keys this morning. A frontal boundary is slowly moving across the Keys coastal waters, providing a source of lift for the moisture-rich environment. Last night's KKEY sounding sampled an environmental PWAT (Precipitable Water) above the 90th percentile for the day, which is corroborated by GOES-East derived precipitable water. While moisture and a source of lift are present, the front has lost most of its characteristics. Breezes across the Keys are northeasterly along the reef and in the bayside waters. A clear difference in dew point is not obvious over Southern Florida compared to the Keys. The front is a lingering boundary that will allow showers to wax and wane across the Florida Keys today and tonight. Expect another damp and humid day. The slow nature of the front does cause a couple of issues. Gale force breezes are present along the Florida Peninsula, which are responsible for the elevated swell in the western waters. Fresh to strong breezes are expected to reach the Florida Keys waters sometime on Thursday, and breezy conditions may start as early as Thursday evening. Drier air will struggle to filter into the Florida Keys. Statistical guidance suggests dew points will stay closer to the upper 60s through Saturday. Numerical model soundings suggest that a dry air mass associated with higher pressure over the eastern United States will take until Sunday to Monday to reach the Keys. After the dry air moves in, there is medium to high confidence that drier, breezy to windy conditions will persist through at least early next week. The trend of persistent blocking patterns continues. Marine Issued at 1128am EDT Wednesday April 8 2026 A Coastal Flood Statement is in effect for the Middle and Upper Keys. From synopsis, a stalled frontal boundary near the Florida Keys is responsible for the slow moving showers across the Keys coastal waters. Seas will be elevated in the western marine zones due to a northwest swell. While light to gentle breezes will prevail through tonight, the front is forecast to move south of the Keys by tomorrow morning. Dry air and fresh breezes will surge in behind the front. NOAA Key West FL Office: Watches - Warnings - Advisories FL...None. GM...None. |
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