173
FXUS62 KKEY 111430
AFDKEY
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE KEY WEST FL
1030 AM EDT FRI APR 11 2025
..NEW DISCUSSION, MARINE, AVIATION
DISCUSSION
ISSUED AT 1030 AM EDT FRI APR 11 2025
KBYX IS DETECTING LIGHT SHOWER ACTIVITY OUT IN THE STRAITS OF
FLORIDA AND SOME PULSE SHOWERS NEAR THE LOWER KEYS THIS MORNING
WITH PARTLY TO MOSTLY CLOUDY CONDITIONS SEEN ON THE ISLAND CHAIN.
TEMPERATURES ACROSS THE KEYS ARE IN THE MID 70S. ALONG THE REEF,
WIND DIRECTIONS EARLY THIS MORNING WERE ALL IN DIFFERENT
DIRECTIONS AS OUTFLOWS OF MIAMI DROVE UPPER KEYS TO NORTH TO
NORTHWEST, CONVECTION INFLUENCED EASTERLIES IN THE MIDDLE KEYS,
AND THE LOWER KEYS REMAINED NORTHERLY. AT THIS TIME, WINDS HAVE
BECOME UNIDIRECTIONAL MAINLY OUT OF THE NORTH AT NEAR 10 KNOTS.
THE 12Z SOUNDING DID REVEAL LIMITED MOISTURE, WITH A PWAT OF ONLY
AN INCH, RESIDING MOSTLY IN THE LOWER LEVELS OF THE ATMOSPHERE.
THIS HELPS EXPLAIN WHY THE SHOWERS THAT CONTINUE TO DEVELOP MAINLY
OVER THE EASTERN STRAITS HAVE HAD A HARD TIME REACHING OVER
15KFT. WITH SOME CYCLONIC MOTION AND CONVERGENCE IN THE STRAITS,
SHOWER ACTIVITY IS EXPECTED TO STICK AROUND OUT THERE THROUGH THE
EARLY AFTERNOON. AS FOR THE ISLAND CHAIN, SOME LIGHT SHOWERS COULD
DEVELOP THROUGHOUT THE DAY BUT SIGNIFICANT RAIN IS NOT EXPECTED
AT THIS TIME.
MARINE
ISSUED AT 1030 AM EDT FRI APR 11 2025
NO WATCHES, WARNINGS, OR ADVISORIES ARE CURRENTLY IN EFFECT FOR
THE FLORIDA KEYS WATERS. FROM SYNOPSIS, GENTLE NORTHERLY BREEZES
WILL BECOME MODERATE AND NORTHWESTERLY LATER THIS AFTERNOON AS A
DRY COLD FRONT SLOWLY APPROACHES OUR LOCAL WATERS. A BRIEF PERIOD
OF FRESHENING BREEZES IS LIKELY DURING THE BETWEEN TONIGHT AND
TOMORROW NIGHT, BUT IT IS STILL UNCLEAR AS TO WHETHER OR NOT SMALL
CRAFT ADVISORIES WILL BE NEEDED AS IT LOOKS LIKE IT WILL BE VERY
BORDERLINE. HIGH PRESSURE WILL BUILD IN AGAIN ONCE THE COLD FRONT
PUSHES OUT OF THE AREA ON SUNDAY, AND BREEZES WILL SLACKEN WHILE
VEERING EASTERLY FOR THE BEGINNING OF THE WEEK. AFTER THAT HIGH
PRESSURE TRACKS EASTWARD AND AWAY FROM OUR AREA, A HIGHLY
AMPLIFIED RIDGE MOVING ACROSS THE EASTERN U.S. WILL ALLOW FOR
BREEZES TO SLACKEN FURTHER AND BECOME VARIABLE.
AVIATION
(12Z TAFS)
ISSUED AT 1030 AM EDT FRI APR 11 2025
VRF CONDITIONS ARE EXPECTED TO PREVAIL AT BOTH EYW AND MTH TODAY.
SOME MVFR CIGS HAVE PERIODICALLY CROSSED OVER THE ISLAND CHAIN FROM
ONGOING CONVECTION IN THE EASTERN STRAITS OF FLORIDA, BUT WILL
LIKELY CLEAR AS SHOWERS SLOWLY MEANDER SOUTH AND FALL APART. A FEW
STRAY BUT SHALLOW SHOWERS CANNOT BE RULED OUT AT EITHER TERMINAL
TODAY WITH A SHORT PERIOD OF VCSH REQUIRED FOR NEARBY PULSE
CONVECTION, BUT NO IMMEDIATE IMPACTS FROM ORGANIZED SHOWERS IS
EXPECTED. OUTSIDE OF CONVECTIVE INFLUENCE, NEAR SURFACE WINDS WILL
BE OUT OF THE NORTHWEST TO NORTH AT 5 TO 10 KNOTS.
CLIMATE
ON THIS DAY IN 1987, THE DAILY RECORD LOW TEMPERATURE OF 59F WAS
LAST RECORDED AT KEY WEST, TYING THE RECORD SET IN 1899. ALSO ON
THIS DAY IN 1960 THE DAILY RECORD LOW TEMPERATURE OF 58F WAS
RECORDED AT MARATHON. TEMPERATURE RECORDS FOR KEY WEST DATE BACK TO
1871, AND FOR MARATHON BACK TO 1950.
KEY WATCHES/WARNINGS/ADVISORIES
FL...NONE.
GM...NONE.
PUBLIC/MARINE/FIRE...AP
AVIATION/NOWCASTS....JAM
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
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page