Straits of Florida from Craig Key to West End of Seven Mile Bridge out 20 - 60 NM Marine Forecast
| Today...East To Southeast Winds 10 To 15 Knots, Decreasing To Near 10 Knots. Seas 2 To 3 Feet. Wave Detail: East To Southeast 3 Feet At 5 Seconds. Isolated Showers. |
| Tonight...East To Southeast Winds Near 10 Knots. Seas 1 To 3 Feet. Wave Detail: East 2 Feet At 4 Seconds. Isolated Showers. |
| Saturday...East To Southeast Winds 5 To 10 Knots. Seas 1 To 2 Feet. Wave Detail: East To Southeast 1 Foot At 3 Seconds. Isolated Showers. |
| Saturday Night...Northeast To East Winds 5 To 10 Knots. Seas 1 To 2 Feet. Scattered Showers. |
| Sunday...Northeast Winds Near 10 Knots. Seas Building To Around 2 Feet. Isolated Showers. |
| Sunday Night...Northeast To East Winds 10 To 15 Knots. Seas 2 To 3 Feet. Isolated Showers. |
| Monday...Northeast To East Winds Near 15 Knots. Seas Building To 2 To 4 Feet, Occasionally To 5 Feet. Isolated Showers. |
| Monday Night...Northeast To East Winds 15 To 20 Knots. Seas Building To 4 To 6 Feet, Occasionally To 8 Feet. Isolated Showers. |
| Tuesday And Tuesday Night...Northeast To East Winds 15 To 20 Knots. Seas 4 To 6 Feet, Occasionally To 8 Feet. Isolated Showers. |
| Area Forecast Discussion National Weather Service Key West FL 420am EST Fri Feb 27 2026 Issued at 420am EST Fri Feb 27 2026 February is coming to an endon a warm note across the Florida Keys. Yesterday's highs rose to near 80 in Key West, while the upper 70s were measured in Marathon. Dew points are measuring in the upper 60s to near 70 across the island chain. A comparison to CIMSS MIMIC Layer TPW estimates around 1.25 inches of PWAT (Precipitable Water) over the Keys in the early morning hours, a significant recovery from the 0.17 inches measured on Tuesday evening by the 00Z KKEY radiosonde. Cloud cover was able to return to the Keys as well. Nighttime microphysics observations from GOES-E show pulses of shallow cumulus cloud and occasional cirrus over the coastal waters. Anemometers out at the reef are measuring light to gentle southeasterlies, and winds are expected to slacken before sunset. While this is tempting fate, conditions look to be rather quiet today for the Florida Keys. The anticipated lighter winds across the Keys can be attributed to the eastward movement of the Atlantic ridge and the development of frontal systems in the southeastern US. A front is forecast to stall over northern Florida on Saturday, because the energy is not present to push the boundary into the Gulf. This would be why we may see a col region over some of the northern waters over the weekend. Rain chances will remain low because the kinematic forcing is not present. Wind speed convergence is slight if present, and backing winds over the weekend will further limit shower formation. March is on track to begin rather uneventfully for the Keys. The feature of interest for Keys weather this forecast cycle will not be near the island chain at all. A strong high pressure system moving into the northern Plains from Canada will tighten the pressure gradient across the coastal waters. Moderate to fresh breezes are likely mid week. The next question would be if sustained winds would exceed Small Craft Advisory thresholds. Currently, we are not advertising windy weather. The high is forecast to rapidly move east across the country instead of sinking south towards the southern states. Keep an eye on the forecast because the high could move further south, slow down, deepen, or become weaker. Seasonal changes are chaotic and we are approaching spring! Marine Issued at 420am EST Fri Feb 27 2026 No watches, warnings, or advisories are in effect for the Florida Keys coastal waters. From synopsis, light to moderate east to southeasterly breezes across the Keys coastal waters will persist through the end of the month. Over the weekend, the Atlantic ridge will shift further eastward as a couple of frontal systems stall over northern Florida. Expect a period of light and variable winds as a col region forms near the northern waters on Saturday. A Cuban Shadow will keep shower coverage limited during this period. Next week, a broad high pressure system is forecast to migrate into the eastern United States, which would support rapidly freshening breezes across the southern waters. NOAA Key West FL Office: Watches - Warnings - Advisories FL...None. GM...None. |
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