470
FXUS62 KKEY 090907
AFDKEY
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KEY WEST FL
507 AM EDT WED JUL 9 2025
..NEW DISCUSSION, MARINE, AVIATION
DISCUSSION
ISSUED AT 505 AM EDT WED JUL 9 2025
SCATTERED SHOWERS WITH ISOLATED THUNDERSTORMS HAVE DWINDLED INTO
THE MORNING HOURS AS ONLY A FEW LIGHT SHOWERS ARE CURRENTLY BEING
DETECTED BY KBYX RADAR. NIGHTTIME MICROPHYSICS REVEALS PARTLY
CLOUDY SKIES OUTSIDE OF CONVECTION WITH LESS COVERAGE ON LAND.
TEMPERATURES ACROSS THE ISLAND CHAIN ARE IN THE LOWER 80S. ALONG
THE REEF, WINDS ARE NORTHEASTERLY AT NEAR 10 KNOTS. TODAY, GENTLE
TO MODERATE BREEZES WILL SLACKEN SLIGHTLY AND BECOME MORE GENTLE
WHILE GRADUALLY VEERING TO THE EAST THEN EAST TO SOUTHEAST BY
TONIGHT. SHOWER ACTIVITY WILL BE POSSIBLE THROUGH TODAY AND
TONIGHT AS MOISTURE COMES IN OFF AN EASTERLY WAVE APPROACHING THE
KEYS. THIS IS VERIFIED BY MIMIC PRECIPITABLE WATER SHOWING AN
INCREASE IN MOISTURE PUSHING INTO OUR AREA.
HIGHER RAIN CHANCES ARE EXPECTED FOR THURSDAY AND THURSDAY NIGHT
AS THE AREA REMAINS UNDER THE INFLUENCE OF A WARM, MOIST TROPICAL
AIRMASS PROVIDED FROM THE EAST TO SOUTHEASTERLY WINDS AND THE
EASTERLY WAVE ENTERS OUR WATERS. AT THE END OF THE WEEK INTO THE
WEEKEND, A SURFACE HIGH IN THE ATLANTIC WILL STRENGTHEN RESULTING
IN A TIGHTENING OF THE PRESSURE GRADIENT AND BREEZES BECOMING
MODERATE. THIS INCREASE IN BREEZES WILL BE BRIEF AS THEY ONCE
AGAIN SLACKEN AT THE BEGINNING OF THE WEEKEND. FOR THE WEEKEND,
A TYPICAL SUMMER PATTERN IS EXPECTED WITH A CHANCE OF SHOWERS
AND A SLIGHT CHANCE OF THUNDERSTORMS.
MARINE
ISSUED AT 505 AM EDT WED JUL 9 2025
NO WATCHES, WARNINGS, OR ADVISORIES ARE CURRENTLY IN EFFECT IN THE
FLORIDA KEYS WATERS. FROM SYNOPSIS, AN ATLANTIC HIGH WILL
MAINTAIN GENTLE TO MODERATE BREEZES ACROSS THE FLORIDA KEYS
THROUGH TODAY. AN EASTERLY WAVE WILL APPROACH THE KEYS TODAY AND
IN CONJUNCTION WITH VEERING WINDS, ELEVATE SHOWER COVERAGE FROM
THIS EVENING THROUGH THE END OF THE WEEK.
AVIATION
(06Z TAFS)
ISSUED AT 505 AM EDT WED JUL 9 2025
VFR CONDITIONS ARE EXPECTED TO PREVAIL AT THE TERMINALS THROUGH THE
TAF PERIOD. SHOWER AND THUNDERSTORM CHANCES ARE EXPECTED TO INCREASE
DURING THE AFTERNOON AND EVENING, BUT FOR NOW THE TIMING AND
COVERAGE OF ANY ACTIVITY THAT MAY IMPACT THE TERMINALS IS TOO
UNCERTAIN FOR TAF INCLUSION, SO AMENDMENTS AND LATER ROUTINE TAFS
WILL COVER ACTIVITY THAT DOES OCCUR. EAST WINDS AT 5 TO 10 KNOTS
WILL PERSIST. HIGHER GUSTS ARE POSSIBLE WITH PASSING SHOWERS.
CLIMATE
ON THIS DAY IN 2005, HURRICANE DENNIS HAMMERED THE KEYS. IT PRODUCED
A COOL HIGH TEMPERATURE OF 82F AND 4.25" OF RAIN AT KEY WEST
INTERNATIONAL AIRPORT ON THE 9TH, BOTH DAILY RECORDS. THIS IS THE
ONLY HURRICANE TO DIRECTLY AFFECT THE KEYS DURING THE MONTH OF JULY
IN THE LAST HUNDRED YEARS.
KEY WATCHES/WARNINGS/ADVISORIES
FL...NONE.
GM...NONE.
PUBLIC/MARINE/FIRE...AP
AVIATION/NOWCASTS....MC
DATA ACQUISITION.....MC
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