textproduct: Key West

KEY MESSAGES

- A Small Craft Advisory remains in effect for all Florida Keys coastal waters overnight. Breezy conditions will persist through at least Tuesday evening. - Little to no measurable rain will maintain continued moderate drought conditions in the Florida Keys for the next week.

- Temperatures will remain near normal, with highs in the lower 80s, and lows in the lower 70s.

SHORT TERM FORECAST

The 00z evening sounding at KEY sampled decent shallow moisture up to around 850 mb, capped by a more stout temperature inversion than at this time last evening. The air above this inversion was even drier than at this time last evening. The sounding also shows weak backing with height. Winds shift from 080 at 1000 ft to 070 at 3000 ft. The sounding measured a PWAT value of 0.83 inches which is close to the 10th percentile for the date. This is indicative of a very dry atmosphere. Outside of some nocturnal showers due to the continued fresh breezes overnight, no forecast changes are expected with this update.

MARINE

Issued at 1000 PM EDT Mon Apr 13 2026 A Small Craft Advisory remains in effect for all the Florida Keys coastal waters overnight. From synopsis, a high pressure system over the central North Atlantic will maintain fresh northeast to east breezes through early Tuesday morning. Occasional fast- moving light showers cannot be ruled out, especially in the overnight periods. Breezes may briefly lull during the late afternoon and early evening across the Gulf waters due to the heating of South Florida. As the high moves farther eastward and slowly weakens, easterly breezes will modestly slacken for Thursday and Friday.

AVIATION

(00Z TAFS) Issued at 1000 PM EDT Mon Apr 13 2026 VFR conditions are expected to prevail at both MTH and EYW terminals through the TAF period. Near surface winds will remain mostly easterly between 9 to 15 knots overnight and 12 to 18 knots during the day. Frequent gusts of 20 to 25 knots are mainly expected during the daylight hours again on Tuesday. We also cannot rule out an occasional passing light shower, especially overnight.

PRELIMINARY POINT TEMPS/POPS

Key West 82 72 82 73 / 10 10 10 10 Marathon 80 73 81 73 / 10 10 10 10

KEY WATCHES/WARNINGS/ADVISORIES

FL...None. GM...Small Craft Advisory until 5 AM EDT Tuesday for GMZ031>035- 042>044-052>055-072>075.