Area Forecast Discussion
Issued by NWS Key West, FL
Issued by NWS Key West, FL
740 FXUS62 KKEY 110233 AFDKEY Area Forecast Discussion National Weather Service Key West FL 1033 PM EDT Fri May 10 2024 ...New DISCUSSION, MARINE, AVIATION... .DISCUSSION... Issued at 1032 PM EDT Fri May 10 2024 It is a quiet night across the Florida Keys. KBYX is detecting nothing on radar and GOES 16 Nighttime Microphysics is showing just some high cirrus streaming from west to east across the distant Straits of Florida. Temperatures along the Island Chain are in the lower 80s with dew points in the lower to mid 70s. The Big Pine Key RAWS is the cool spot this evening so far with a temperature of 75 degrees due to radiational cooling that has taken place. High pressure that dominated the weather across the Keys the last few days has loosened its grip across the region as a frontal boundary associated with a developing low pressure off the North Carolina coast sags slowly southward along the Florida Peninsula. Due to this, breezes along the Island Chain have become light and variable with marine platforms around the Keys mainly variable near 5 knots but the easternmost platforms are southwest to west between 5 to 10 knots. .SHORT TERM FORECAST... The 00z sounding this evening remains dry from the surface all the way up to nearly the top of the atmosphere. However, between 200 and 100 mb, there was a slight moistening present to the profile which makes sense since GOES 16 Nighttime Microphysics shows very high clouds streaming from west to east across the distant Straits of Florida. The wind profile remains chaotic showing variable conditions and winds generally 10 knots or less. With the winds becoming light and variable this evening, Big Pine Key has been able to experience a decent radiational cooling setup which has allowed them to cool to 75 degrees so far. Therefore, the forecast was updated for clearer conditions tonight and with the light winds, decided to go ahead and update the forecast to mostly clear and lows of 75 to 80. && .MARINE... Issued at 1032 PM EDT Fri May 10 2024 There are currently no watches, warnings, or advisories in effect across Florida Keys coastal waters. From synopsis, variable breezes this evening will becoming southwest to west overnight as a frontal boundary moves down the Florida Peninsula. Winds will continue to veer around the compass during the weekend as this front approaches and dissipates in the vicinity of the Keys on Sunday. Gentle to moderate southeast breezes will resume early next week as another high pressure area moves over the western Atlantic. && .AVIATION... (00Z TAFS) Issued at 1032 PM EDT Fri May 10 2024 VFR conditions are expected to persist through the TAF package. Light and variable surface winds this evening will become southwest late overnight through Saturday morning before becoming west to northwest late Saturday afternoon. && .PRELIMINARY POINT TEMPS/POPS... Key West 87 79 88 80 / 0 0 0 0 Marathon 87 80 89 80 / 0 10 0 0 && .KEY WATCHES/WARNINGS/ADVISORIES... FL...None. GM...None. && $$ Public/Marine/Fire...MJV Aviation/Nowcasts....MJV Data Acquisition.....JAM Visit us on the web at weather.gov/key Follow us on Facebook and Twitter at: www.facebook.com/nwskeywest www.twitter.com/nwskeywest