705
FXUS62 KGSP 101756
AFDGSP
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
156 PM EDT THU SEP 10 2026
WHAT HAS CHANGED
RAIN CHANCES ARE TRENDED DOWNWARD FOR THE WEEKEND.
KEY MESSAGES
1. QUIET WEATHER BEFORE DAILY SHOWER AND THUNDERSTORM CHANCES
RETURN FRIDAY INTO EARLY NEXT WEEK. HUMIDITY AND ABOVE NORMAL
TEMPERATURES REMAIN THROUGH AT LEAST MONDAY.
DISCUSSION
KEY MESSAGE 1: QUIET WEATHER BEFORE DAILY SHOWER AND THUNDERSTORM
CHANCES RETURN FRIDAY INTO EARLY NEXT WEEK. HUMIDITY AND ABOVE
NORMAL TEMPERATURES REMAIN THROUGH AT LEAST MONDAY.
GENERALLY QUIET WEATHER AS UPPER FLOW REMAINS FLAT WITH WEAK SURFACE
HIGH PRESSURE OVER THE SOUTHEAST. BY FRIDAY, A FRONTAL BOUNDARY
APPROACHES THE AREA, BUT LOOKS TO GET HUNG UP WEST OF THE CWA.
HOWEVER, A SERIES OF SHORTWAVES TRAVERSE THROUGH THE REGION AND PEAK
ON SATURDAY, INCREASING SHOWER AND THUNDERSTORM CHANCES. GUIDANCE
DEPICTS RATHER WEAK FORCING AND INSTABILITY, DECREASING CONFIDENCE
FOR ANY SEVERE WEATHER ON SATURDAY. LATEST GUIDANCE ALSO DECREASES
POP CHANCES FOR FRIDAY AND SATURDAY, LIKELY LOCKING ONTO THE ABOVE
MENTIONED HINDRANCES. MOISTURE STARTS TO TICK BACK UP WHEN SURFACE
WINDS BECOME MORE S/SW FRIDAY NIGHT, ELEVATING THE HUMIDITY ONCE
AGAIN. ALL THIS TO SAY, SHOWER AND THUNDERSTORM CHANCES ARE HIGHEST
SATURDAY, WITH PROBABILITIES TAPERING SUNDAY AND MUCH DRIER BY
MONDAY.
ADDITIONALLY, THE HEAT IS NOT QUITE DONE WITH THE SOUTH AS
WIDESPREAD MID 90S PEAK ON FRIDAY FOR LOCATIONS EAST OF THE
MOUNTAINS. HOWEVER, HEIGHT FALLS WITH THE APPROACHING BOUNDARY HELPS
TO SOMEWHAT COOL TEMPS A COUPLE DEGREES. BUT, HUMIDITY KEEPS HEAT
INDICES IN THE UPPER 90S WITH A FEW LOCATIONS FEELING SPOTTY LOW
100S IN THE TYPICAL AREAS.
AVIATION /18Z THURSDAY THROUGH TUESDAY/
AT KCLT AND ELSEWHERE: VFR CONDITIONS PREVAIL THROUGH THE PERIOD.
SCT/FEW050 FOR AFTERNOON CU BEFORE SKC/SCT250 AT ALL SITES
OVERNIGHT. WINDS PREVAIL SW WITH GUSTS OF 15-20KTS AT KCLT THROUGH
00Z. VERY LIGHT TO CALM OVERNIGHT AT ALL TERMINALS BEFORE GENTLY
INCREASING FRIDAY MORNING. BR LIKELY AT KAVL BETWEEN 10Z-13Z, AS
USUAL.
OUTLOOK: RESTRICTIONS COULD RETURN FRIDAY INTO THE WEEKEND WITH
SHOWERS AND THUNDERSTORMS POSSIBLE. MORNING FOG/LOW STRATUS
POSSIBLE, ESPECIALLY IN THE MOUNTAIN VALLEYS.
GSP WATCHES/WARNINGS/ADVISORIES
GA...NONE.
NC...NONE.
SC...NONE.
CP
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