661
FXUS62 KKEY 090209
AFDKEY
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KEY WEST FL
1009 PM EDT TUE JUL 8 2025
..NEW DISCUSSION, MARINE, AVIATION
DISCUSSION
ISSUED AT 1019 PM EDT TUE JUL 8 2025
A NUMBER OF LONG LIVED THUNDERSTORMS PULSED UP AND DOWN OVER THE
WATERS OF THE FLORIDA KEYS THIS EVENING. AN IMPRESSIVE
THUNDERSTORM FORMED OFF A CLOUD LINE NEAR CAPE SABLE BEFORE
SUNSET, AND ANOTHER CLUSTER OF LONG LIVED THUNDERSTORMS DEVELOPED
SOUTHWEST OF MARCO ISLAND. ASIDE FROM THESE CLUSTERS THE KBYX
RADAR SHOWED CONDITIONS WERE MOSTLY CLEAR ACROSS THE CWA. GOES-E
SATELLITE OBSERVATIONS HIGHLIGHT THE LARGE EXPANSE OF CIRRUS
CLOUDS FROM THE AFOREMENTIONED THUNDERSTORMS. MORE NOTABLY, MIMIC-
TPW SATELLITE RETURNS SAMPLED PWAT IN THE 1.8-1.9 INCH RANGE,
WHICH WAS SUPPORTED BY THE 00Z KKEY SOUNDING.
IN THE SHORT TERM, RAIN CHANCES WILL REMAIN AT 20 PERCENT ACROSS
THE ISLAND CHAIN WITH GENTLE TO MODERATE EASTERLY BREEZES.
TEMPERATURES ARE ON TRACK TO STAY IN THE LOWER 80S OUTSIDE OF
SHOWERS. HOWEVER, WATER VAPOR IMAGERY INDICATES A LARGE PLUME OF
MOISTURE APPROACHING THE KEYS FROM THE SOUTHEAST AHEAD OF AN
EASTERLY WAVE. EXACTLY WHEN SHOWER COVERAGE INCREASES WILL DEPEND
ON THE SPEED OF THE WAVE AND HOW IT INTERACTS WITH LINGERING
BOUNDARIES OVER THE STRAITS. EITHER WAY, EXPECT THE ATMOSPHERE TO
BECOME MORE ACTIVE TOMORROW.
MARINE
ISSUED AT 1019 PM EDT TUE JUL 8 2025
NO WATCHES, WARNINGS, OR ADVISORIES ARE CURRENTLY IN EFFECT FOR
THE COASTAL WATERS OF THE FLORIDA KEY. FROM SYNOPSIS, WHILE THE
ATLANTIC HIGH WILL MAINTAIN GENTLE TO MODERATE BREEZES ACROSS THE
FLORIDA KEYS TONIGHT, BREEZES WILL SLACKEN TO GENTLE IN THE EARLY
MORNING. AN EASTERLY WAVE WILL APPROACH THE FLORIDA KEYS ON
WEDNESDAY ALONG WITH A PLUME OF DEEP TROPICAL MOISTURE. EXPECT
INCREASED SHOWER COVERAGE FROM WEDNESDAY NIGHT THROUGH THE
WEEKEND.
AVIATION
(00Z TAFS)
ISSUED AT 1019 PM EDT TUE JUL 8 2025
VFR CONDITIONS WILL PREVAIL AT EYW AND MTH FOR THE 00Z TAF
PERIOD. EXPECT NEAR SURFACE WINDS TO VEER EASTERLY AFTER 18Z.
CLOUDS AND SHOWER COVERAGE WILL INCREASE TOMORROW AFTERNOON, AND
CLOUD LINES WILL BE A CONCERN AFTER 18Z.
KEY WATCHES/WARNINGS/ADVISORIES
FL...NONE.
GM...NONE.
PUBLIC/MARINE/FIRE...AJP
AVIATION/NOWCASTS....AJP
DATA ACQUISITION.....DR
VISIT US ON THE WEB AT WEATHER.GOV/KEY
FOLLOW US ON FACEBOOK AND TWITTER AT:
WWW.FACEBOOK.COM/NWSKEYWEST
WWW.TWITTER.COM/NWSKEYWEST
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page