textproduct: Key West

KEY MESSAGES

- A Coastal Flood Statement is in effect for the Lower Keys, due to higher water levels around the time of high tide.

- A Saharan Air Layer (SAL) will remain over the region for the next several days, keeping slim to no shower and thunder chances for much of the week.

- Near to slightly above normal temperatures will continue for much of the week with little relief overnight. Remember to stay hydrated and take breaks if spending time outdoors.

DISCUSSION

Issued at 1026 PM EDT Tue Aug 11 2026 Saharan Air Layer over the Keys will continue to result in KBYX being shower free, which it has been for a majority of the day. This evening's KKEY 00z sounding measured 1.48 inches of PWAT which is below the 10 percentile for the day, according to SPC Climatology. These dry conditions have also resulted in mostly clear skies for our area. Temperatures along the island chain have dipped into the mid 80s and with dew points in the upper 70s not much relief from the heat of the day is possible. Across the Reef, marine observation sites are recording east to southeasterly breezes of near 10 knots. While the Saharan Air continues to dominate our weather not much is expected to change for the next few periods, therefore, only a slight chance of shower is in the forecast for tonight. No changes were made to this update forecast package.

MARINE

Issued at 1026 PM EDT Tue Aug 11 2026 While there are no marine hazard products in place across the Florida Keys local waters, a Coastal Flood Statement is in effect for the Lower Keys due to higher water levels around times of high tide. Anyone on the water should be aware of reduced clearance underneath fixed bridges over the next few days. Ridging across Central Florida will shift southwards into Central and South Florida and weaken over the next couple of days. Gentle to moderate breezes will trend downwards to a light breeze through this period, with some directional variability creeping in. Winds are expected to freshen late in the week as the ridge lifts back into northern Florida and a broad lower level trough moves westward across our area. Expect shower and thunderstorm chances to tick up at that time.

AVIATION

(00Z TAFS) Issued at 1026 PM EDT Tue Aug 11 2026 VFR conditions will prevail at both EYW and MTH through the TAF period. Drier air will limit shower development and cloud coverage through the morning, therefore, no mention of VCSH is necessary. Near surface winds will continue to be east to southeast at 5 to 10 knots overnight.

KEY WATCHES/WARNINGS/ADVISORIES

FL...None. GM...None.