Hawk Channel from Seven Mile Bridge to Halfmoon Shoal out to the reef Marine Forecast
| This Afternoon...North To Northeast Winds 20 To 25 Knots, Decreasing To Near 20 Knots. Seas 2 To 4 Feet, Occasionally To 5 Feet, Except 4 To 6 Feet, Occasionally To 8 Feet West Of Cosgrove Shoal Light. Nearshore Waters Very Rough, Becoming Rough. A Slight Chance Of Showers. |
| Tonight...North To Northeast Winds Near 20 Knots. Seas 2 To 3 Feet, Except 4 To 5 Feet, Occasionally To 6 Feet West Of Cosgrove Shoal Light. Nearshore Waters Rough. A Slight Chance Of Showers. |
| Friday...North To Northeast Winds Near 20 Knots, Decreasing To 15 To 20 Knots. Seas 2 To 3 Feet, Except 4 To 5 Feet, Occasionally To 6 Feet West Of Cosgrove Shoal Light. Nearshore Waters Rough, Becoming Choppy. A Slight Chance Of Showers. |
| Friday Night...Northeast Winds 15 To 20 Knots. Seas 2 To 3 Feet, Except 3 To 4 Feet, Occasionally To 5 Feet West Of Cosgrove Shoal Light. Nearshore Waters Choppy. |
| Saturday...Northeast Winds Near 15 Knots, Decreasing To 10 To 15 Knots. Seas 2 To 3 Feet. Nearshore Waters A Moderate Chop, Becoming A Light To Moderate Chop. |
| Saturday Night...Northeast To East Winds Near 10 Knots. Seas Around 2 Feet, Subsiding To 1 To 2 Feet. Nearshore Waters A Light Chop. |
| Sunday...East Winds 5 To 10 Knots. Seas 1 To 2 Feet. Nearshore Waters Smooth To A Light Chop. |
| Sunday Night...East Winds Near 10 Knots. Seas 1 To 2 Feet. Nearshore Waters A Light Chop. |
| Monday And Monday Night...Northeast To East Winds 5 To 10 Knots. Seas 1 To 2 Feet. Nearshore Waters Smooth To A Light Chop. |
| Area Forecast Discussion National Weather Service Key West FL 1029am EDT Thu Mar 19 2026 Issued at 940am EDT Thu Mar 19 2026 GOES-19 infrared satellite imagery suggests the stubborn stationary boundary responsible for the cloudy, cool, and dreary conditions over the past several days has finally drifted southward, now extending from central Cuba northeastward to the eastern Bahamas. The 12z morning sounding at KEY highlighted residual boundary layer moisture, but as dry air depicted in satellite-derived total precipitable water product continues to advect southward, low-level moisture will quickly erode over the next several hours, with near-nil rain chances expected thereafter for the foreseeable future. Outside of removing thunder from the Straits of Florida due to the negative moisture advection, no changes proposed for this late morning update package. Issued at 534am EDT Thu Mar 19 2026 Small Craft Advisory is in effect for all of the coastal waters and the current Reef observations support that recording near 20 knots. While showers are possible throughout today, models are suggesting a majority of the activity will remain in the Straits. High pressure has built in behind the recent cold front passage earlier in the week. This has resulted in fresh to occasionally strong breezes across the coastal waters. These fresh to strong breezes will start to slacken overnight into Friday as the high starts to lose it's grip. As the weekend unfolds, rain chances will decrease with only a slight chance expected through early next week. Temperatures will start to gradually warm back up from our brief cool temperatures, though the dew points will remain near 60 making for a pleasant few upcoming days! Marine Issued at 940am EDT Thu Mar 19 2026 A Small Craft Advisory remains in effect for all Keys marine zones. From synopsis, high pressure building in behind the recent frontal passage will maintain fresh to occasionally strong breezes through tonight. Breezes will slacken appreciably beginning Friday, with light to gentle breezes expected for the weekend into early next week. NOAA Key West FL Office: Watches - Warnings - Advisories FL...None. GM...Small Craft Advisory until 9pm EDT this evening for GMZ031>035- 042>044-052>055-072>075. |
Key West FL Radar
Southeast Radar