437
FXUS62 KKEY 061533
AFDKEY
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KEY WEST FL
1033 AM EST THU MAR 6 2025
..NEW DISCUSSION, MARINE, AVIATION
DISCUSSION
ISSUED AT 848 AM EST THU MAR 6 2025
POST COLD FRONTAL CONDITIONS DESCRIBE THE MORNING WEATHER OVER
KEY WEST. WINDS AT THE REEF ARE MEASURING NEAR 20 KNOTS WITH GUSTS
NEAR 25 KNOTS AT BOTH THE KEY WEST AND MARATHON AIRPORTS. KBYX
DETECTIONS DO NOT SHOW RAIN THIS MORNING. GOES EAST DAY CLOUD
PHASE RGBS SHOW CLOUD COVER ACROSS THE CWA IS LIMITED TO LOW LEVEL
STRATUS BEHIND THE FRONT. THE EXTENT OF DRY AIR IS SUPPORTED BY
THE 12Z KKEY BALLOON, WHICH SAMPLED A DISTINCT INVERSION CAPPING
CLOUD HEIGHTS BELOW 5000 FT AND AN OVERALL PWAT WELL BELOW THE
10TH PERCENTILE FOR THE DAY. DEW POINTS ACROSS THE ISLAND CHAIN
ARE STILL NEAR 60F, AND OBSERVATIONS ALONG THE FLORIDA PENINSULA
SHOW THE DEEP COLD AIR ASSOCIATED WITH THE CANADIAN AIR MASS IS
STILL NEAR ORLANDO. TODAY, EXPECTING DEW POINTS TO DECREASE INTO
THE UPPER 50S WITH WINDS GRADUALLY SLACKENING AS THE PRESSURE
GRADIENT WEAKENS.
MARINE
ISSUED AT 848 AM EST THU MAR 6 2025
A SMALL CRAFT ADVISORY REMAINS IN EFFECT FOR ALL THE FLORIDA KEYS
COASTAL WATERS TODAY, ESPECIALLY EARLY THIS AFTERNOON. FROM
SYNOPSIS, FRESH BREEZES IN THE AFTERMATH OF A COLD FRONT WILL
SLACKEN BRIEFLY THIS AFTERNOON ACROSS THE KEYS COASTAL WATERS.
DESPITE WEAK HIGH PRESSURE BUILDING OVER THE GULF, AN OFFSHORE
WIND SURGE WEST OF THE FLORIDA PENINSULA WILL RESULT IN A BRIEF
PERIOD OF SMALL CRAFT ADVISORY CONDITIONS THIS EVENING. BREEZES
WILL SLACKEN EVERYWHERE OVERNIGHT AND VEER TO THE NORTHEAST BY
FRIDAY MORNING. WEAK HIGH PRESSURE REMAINS IN CONTROL THROUGH THE
WEEKEND AS IT SLIDES ACROSS FLORIDA AND INTO THE WESTERN NORTH
ATLANTIC RESULTING IN GENTLE TO MODERATE BREEZES, OCCASIONALLY
LIGHT OVER THE WEEKEND. A SECOND FRONTAL SYSTEM IS EXPECTED SUNDAY
NIGHT TO MONDAY, WITH THE POSSIBILITY FOR SMALL CRAFT ADVISORY
CONDITIONS AT THE START OF NEXT WEEK.
AVIATION
(12Z TAFS)
ISSUED AT 848 AM EST THU MAR 6 2025
VFR CONDITIONS WILL PREVAIL AT THE ISLAND TERMINALS THIS AFTERNOON.
FRESH NORTHWESTERLY BREEZES WILL LULL BRIEFLY THIS AFTERNOON, THEN
FRESHEN AGAIN LATE THIS AFTERNOON. CROSSWINDS WILL BE PRESENT.
CLIMATE
ON THIS DAY IN 1957, HAIL SMALLER THAN 3/4" FELL IN KEY WEST.
PRELIMINARY POINT TEMPS/POPS
KEY WEST 72 62 75 70 / 0 0 0 0
MARATHON 74 61 76 71 / 0 0 0 0
KEY WATCHES/WARNINGS/ADVISORIES
FL...NONE.
GM...SMALL CRAFT ADVISORY UNTIL 5 PM EST THIS AFTERNOON FOR
GMZ031>035-042>044-052>055-072>075.
PUBLIC/MARINE/FIRE...AJP
AVIATION/NOWCASTS....11
DATA ACQUISITION.....11
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