textproduct: Key West

KEY MESSAGES

- A generally active pattern will remain in place with above normal to well above normal rain chances through mid week, peaking tonight and Monday.

- Heat indices may approach 105 to 110 degrees each afternoon for some Florida Keys island communities, especially in the Upper Keys.

DISCUSSION

Issued at 1007 PM EDT Sun Jul 26 2026

The combination of a mid latitude trough reaching down the Atlantic Coast and an upper level low just south of Cuba has resulted in broad troughing across our area. This along with an essentially uncapped atmosphere, near record daily precipitable water of 2.26 inches, moist confluent flow, and sea breeze and cloud line development has resulted in several rounds of showers and thunderstorms across our area this past afternoon and evening.

Troughing will linger across our area through tonight and drive further rounds of showers and thunderstorms. Will maintain likely chance of showers with a chance for thunderstorms for the overnight. There will likely be a lull in the next few hours given how active it was earlier. Expect overnight lows in the lower to mid 80s with dew points in the mid 70s. Winds will range from west southwesterly over our eastern zones and northwesterly over the western zones.

MARINE

Issued at 1007 PM EDT Sun Jul 26 2026

Broad troughing is in place across Keys waters this evening. This will result in light to gentle southwesterlies breezes on our eastern waters, and northwesterlies on the western side. The trough has brought an active weather pattern. Expect rounds of showers and possibly thunderstorms overnight.

AVIATION

(00Z TAFS) Issued at 1007 PM EDT Sun Jul 26 2026

VFR conditions will prevail at the island terminals overnight. With that said, a wetter than normal pattern has set in and bouts of sub VFR conditions and brief gusty winds will be possible. Otherwise, surface winds will be light, tending west to northwest.

KEY WATCHES/WARNINGS/ADVISORIES

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