Area Forecast Discussion
Issued by NWS Key West, FL
Issued by NWS Key West, FL
495 FXUS62 KKEY 310316 AFDKEY Area Forecast Discussion National Weather Service Key West FL 1116 PM EDT Thu Jul 30 2026 ...New DISCUSSION, MARINE, AVIATION... .KEY MESSAGES... - A reverse cloud line is possible this afternoon. Any developing cloud line will tend to favor waterspout development. - Light to gentle southwest to west breezes expected today, becoming mainly light breezes tonight. && .DISCUSSION... Issued at 1116 PM EDT Thu Jul 30 2026 Another afternoon, another late day cloud line. This one was way less impressive than the one that developed yesterday, though it did manage to produce some showers before quickly fizzling out. Since then the radar has been void of any precipitation echos. Meanwhile, the pressure field across the Keys continues to become weaker and more nebulous. This is resulting in slackening winds with winds becoming light and variable. Winds will remain light and chaotic Friday into the first half of the weekend. Starting Sunday, a large surface low will slowly meander eastward from the Mississippi Valley and settle across the eastern half of the U.S. This will tighten the pressure gradient and lead to an increase in winds. In addition, moisture will gradually begin increasing across the region, setting up for a potentially wet pattern early next week. && .MARINE... Issued at 1116 PM EDT Thu Jul 30 2026 Winds have gone light and variable this evening and will continue through the overnight and into the first half of the weekend. The exception will be the waters immediately adjacent to the mainland which will briefly freshen to light to gentle in the afternoon. Starting Sunday, a large surface low will move into the eastern U.S. and gradually tighten the pressure gradient across the region. This will lead to freshening east to southeast breezes into early next week. In addition, there is a potential for a return to a more active weather pattern. && .AVIATION... (00Z TAFS) Issued at 1116 PM EDT Thu Jul 30 2026 VFR conditions expected through the forecast period with light and variable winds generally expected. Conditions are very marginal that a cloud line could develop in the afternoon. && .KEY WATCHES/WARNINGS/ADVISORIES... FL...None. GM...None. && $$ Public/Marine/Fire...LIW Aviation/Nowcasts....LIW Data Acquisition.....DR Visit us on the web at weather.gov/key Follow us on Facebook and X at: www.facebook.com/nwskeywest www.x.com/nwskeywest