236
FXUS62 KGSP 241056
AFDGSP
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
656 AM EDT WED JUN 24 2026
WHAT HAS CHANGED
UPDATED THE AVIATION DISCUSSION FOR THE 12Z TAFS.
KEY MESSAGES
1. SLIGHTLY COOLER AND DRIER CONDITIONS ARE EXPECTED TODAY.
2. DIURNAL SHOWER AND THUNDERSTORM CHANCES RETURN BY THE END OF
THE WEEK AND CONTINUE THRU THE WEEKEND. HIGH TEMPERATURES OUTSIDE
THE MOUNTAINS ARE EXPECTED TO CLIMB INTO THE MID TO UPPER 90S
THIS WEEKEND.
DISCUSSION
KEY MESSAGE 1: SLIGHTLY COOLER AND DRIER CONDITIONS ARE EXPECTED
TODAY.
THE DEPARTING COLD FRONT HAS MOVED OFF THE ATLANTIC COAST EARLY
THIS MORNING AND THE BREEZY NWLY WINDS BEHIND THE FRONT HAVE
DISSIPATED OVER OUR AREA. NOTABLY DRIER AND SOMEWHAT COOLER AIR
HAS SPREAD ACROSS THE FCST AREA IN THE FRONT'S WAKE AS SFC HIGH
PRESSURE REMAINS CENTERED JUST TO OUR NW. THE SFC HIGH WILL DRIFT
EASTWARD AND WEAKEN AS THE DAY PROGRESSES. WINDS WILL REMAIN LIGHT
TODAY AND TONIGHT WITH FEW TO SCT HIGH CLOUDS STREAMING OVER THE
AREA. HIGH TEMPERATURES SHOULD REMAIN ABOUT 3 TO 6 DEGREES BELOW
NORMAL TODAY AND WARM BACK TO NEAR-NORMAL, IF NOT SLIGHTLY ABOVE,
ON THURSDAY.
KEY MESSAGE 2: DIURNAL SHOWER AND THUNDERSTORM CHANCES RETURN BY THE
END OF THE WEEK AND CONTINUE THRU THE WEEKEND. HIGH TEMPERATURES
OUTSIDE THE MOUNTAINS ARE EXPECTED TO CLIMB INTO THE MID TO UPPER
90S THIS WEEKEND.
A WEAK UPPER TROF PATTERN WILL REMAIN IN PLACE JUST TO OUR NORTH
THRU THE END OF THE WORK WEEK AND INTO THE WEEKEND. INCREASINGLY
MOIST, SLY LOW-LEVEL FLOW WILL RETURN TO THE SOUTHEAST BY LATE WEEK
AS THE BERMUDA HIGH BACK BUILDS OVER THE REGION. EACH DAY, THRU THE
WEEKEND, IS EXPECTED TO SEE A STEADY INCREASE IN AFTERNOON HIGH
TEMPERATURES. THE LATEST LONG-RANGE GUIDANCE CONTINUES TO SUGGEST
THAT TEMPERATURES WILL MODERATE SOMEWHAT ON MONDAY, AND THEN WARM
AGAIN BY THE MIDDLE OF NEXT WEEK. PIEDMONT TEMPERATURES OVER THE
THREE-DAY PERIOD FRIDAY THRU SUNDAY ARE EXPECTED TO REACH THE MID
TO UPPER 90S, WHILE THE UPSTATE REMAINS IN THE LOW TO MID 90S.
DEWPTS ARE EXPECTED TO BE HIGH ENOUGH ON SATURDAY AND SUNDAY TO
PRODUCE HEAT INDICES NEAR OR JUST ABOVE 100 DEGREES FOR MOST OF
OUR I-85 CORRIDOR AND ZONES SOUTH OF IT. I CANNOT RULE OUT HEAT
ADVISORY CONDITIONS ACROSS SOME OF THIS AREA. IT WILL DEPEND ON
HOW MUCH DEWPTS MIX OUT EACH AFTERNOON AND WHETHER HIGH TEMPERA-
TURES TREND WARMER OR COOLER. THE INCREASING MOISTURE WILL BRING
BACK THE DIURNAL CONVECTIVE TREND WITH THE BEST CHANCES FOR SHOWERS
AND THUNDERSTORMS OVER THE NC MTNS, ESPECIALLY ALONG THE NC/TN BORDER
REGION.
AVIATION /12Z WEDNESDAY THROUGH SUNDAY/
AT KCLT AND ELSEWHERE: EXPECT DRY, VFR CONDITIONS TO PREVAIL
THRU THE 12Z TAF PERIOD WITH HIGH PRESSURE OVER THE AREA. OTHER
THAN FEW TO SCT CIRRUS, SKIES SHOULD REMAIN MOSTLY CLEAR THRU
THE PERIOD. SOME VFR STRATOCU IS CURRENTLY MAKING ITS WAY OVER
THE UPSTATE, BUT SHOULD DISSIPATE OVER THE NEXT HOUR OR TWO.
WINDS WILL FAVOR A N TO NE DIRECTION THRU THE MORNING AT KCLT
AND THE UPSTATE TERMINALS, THEN GO LIGHT AND VRB TO CALM FOR
THE REMAINDER OF THE PERIOD. AT KHKY AND KAVL, WINDS SHOULD
REMAIN LIGHT AND VRB TO CALM THRU THE TAF PERIOD.
OUTLOOK: MOSTLY DRY, VFR CONDITIONS EXPECTED THROUGH THURSDAY.
DIURNAL SHOWER AND THUNDERSTORM CHANCES AND THEIR ASSOCIATED
RESTRICTIONS INCREASE AGAIN ON FRIDAY, ESPECIALLY OVER THE NC
MTNS, AND CONTINUE THROUGH THE WEEKEND.
GSP WATCHES/WARNINGS/ADVISORIES
GA...NONE.
NC...NONE.
SC...NONE.
JPT
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