textproduct: Key West

This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.

KEY MESSAGES

- Conditions will be marginally conducive for a reverse cloud line to develop this afternoon. - Light and variable winds will persist into the afternoon.

DISCUSSION

Issued at 512 AM EDT Fri Jul 31 2026 A mostly uneventful night for the Florida Keys unfolded into a peaceful morning. KBYX has remained shower-free for the last several hours. Last night's KKEY 00z sounding revealed a drier profile explaining the lack of showers experienced overnight. Across the island chain temperatures are in the mid to lower 80s with dewpoints in the mid 70s. Cloud coverage seen on Nighttime Microphysics is mostly clear for the Lower Keys while the Upper Keys have some upper level clouds drifting through. Along the Reef, marine locations are reporting mostly light and variable winds. For today, with these light and variable winds cloud line development is possible similarly to yesterday with possible waterspouts associated with that. Outside of showers produced from the cloud lines, limited shower development is expected for the day. This pattern is expected to last for the next few periods. As a trough moves easterly on Sunday, winds are expected to freshen and become southeast to east once again. This trough will also reignite the moisture resulting in higher rain chances for later in the week. Stay tuned.

MARINE

Issued at 512 AM EDT Fri Jul 31 2026 No watches, warnings, or advisories are currently in effect for the Florida Keys waters. From synopsis, the western periphery of an Atlantic surface ridge will continue to slide westward across the Florida Keys coastal waters. This will result in a weak nebulous flow, resulting in light to gentle breezes. A col region will set up today into the first part of the weekend, resulting in a potential period of light and variable breezes. As high pressure strengthens in the North Atlantic, southeast breezes will freshen by the second half of the weekend and into early next week.

AVIATION

(06Z TAFS) Issued at 512 AM EDT Fri Jul 31 2026 VFR conditions will prevail at both EYW and MTH through the TAF period. Light and variable winds today could potentially lead to a cloud line. No mention of VCSH at this time but if a cloud line does develop it will be added to the terminals.

KEY WATCHES/WARNINGS/ADVISORIES

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

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