textproduct: Key West

KEY MESSAGES

- Chance of showers and thunderstorms continues through tonight as moisture remains plentiful. - Mainly light to gentle broadly easterly breezes will continue with light and variable breezes possible this afternoon.

- Increased moisture content, associated with The Remnants of tropical system Dolly, may bring a period of enhanced rain chances by Thursday and Friday.

DISCUSSION

Issued at 500 AM EDT Wed Sep 2 2026 KBYX has been detecting scattered showers with the occasional thunderstorm for a majority of the overnight period though most of these showers have been over the water leaving the island chain shower-free. Nighttime Microphysics reveals partly cloudy skies. Last night's 00z KKEY sounding measured 2.37 inches of PWAT which according to SPC Climatology surpasses the daily max value by 0.04 inches! Needless to say, there is plenty of moisture in our atmosphere. Temperatures across the island chain are in the mid 80s with dew points in the upper 70s making for another muggy summer morning. Along the Reef, marine locations are reporting easterly winds at near 5 knots. For today, as ample moisture continues, showers and thunderstorms will pop up in various locations. As remnants of Dolly reach our coastal waters by Thursday rain chances will further increase due to broad area of low pressure and deep tropical moisture associated. By the weekend, the Western Atlantic ridge will push south and typical rain chances will return with 30-40% advertised.

MARINE

Issued at 500 AM EDT Wed Sep 2 2026 No watches, warnings, or advisories are currently in effect for the Florida Keys waters. From synopsis, the western periphery of an Atlantic high remains in control of the Keys for the next several days. Therefore, expect continued peaking and lulling breezes. The direction will also vary over the next few days with east to southeasterly breezes overnight and in the morning, becoming northeast to east breezes late afternoon and evening. In addition, the overall flow will keep deep moisture in place across the region with daily chances of showers and thunderstorms. Locally hazardous winds and seas are expected in the vicinity of thunderstorm activity.

AVIATION

(06Z TAFS) Issued at 500 AM EDT Wed Sep 2 2026 VFR conditions will prevail at both EYW and MTH through the TAF period. Showers and thunderstorms are possible at EYW after sunrise therefore PROB30 has been included for the terminal. Thereafter, VCSH will be included for showers passing near either terminal through the afternoon.

KEY WATCHES/WARNINGS/ADVISORIES

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