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  
 
VISIT US ON THE WEB AT WEATHER.GOV/KEY  
 
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