322
FXUS62 KGSP 202324
AFDGSP
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
724 PM EDT TUE OCT 20 2026
WHAT HAS CHANGED
UPDATED FOR 00Z AVIATION DISCUSSION AND TO REMOVE FIRE DANGER
INFORMATION FROM THIS AFTERNOON.
KEY MESSAGES
1. DRY THROUGH EARLY NEXT WEEK. ABOVE NORMAL HIGH TEMPERATURES
LINGER THROUGH THURSDAY BEFORE NEAR TO BELOW NORMAL HIGHS DEVELOP
FRIDAY INTO THE WEEKEND. ABOVE NORMAL HIGHS RETURN BY EARLY
NEXT WEEK.
DISCUSSION
KEY MESSAGE 1: DRY THROUGH EARLY NEXT WEEK. ABOVE NORMAL HIGH
TEMPERATURES LINGER THROUGH THURSDAY BEFORE NEAR TO BELOW NORMAL
HIGHS DEVELOP FRIDAY INTO THE WEEKEND. ABOVE NORMAL HIGHS RETURN BY
EARLY NEXT WEEK.
COASTAL LOW STALLS OFF THE MID-ATLANTIC COAST THROUGH WEDNESDAY
NIGHT BEFORE GRADUALLY LIFTING AWAY FROM MID-ATLANTIC COAST THURSDAY
INTO THURSDAY NIGHT. MEANWHILE, THE SOUTHERN PERIPHERY OF A SURFACE
RIDGE REMAINS EXTENDED OVER THE SOUTHEAST KEEPING DRY AND ABOVE
NORMAL HIGHS AROUND THROUGH THURSDAY. THE CENTER OF THE HIGH SHIFTS
MORE SOUTH AND EAST OVER NEW ENGLAND FRIDAY INTO SUNDAY ALLOWING DRY
CLASSIC COLD AIR DAMMING TO DEVELOP. ALTHOUGH MOSTLY SUNNY SKIES
WILL PREVAIL, COOLER HIGHS SHOULD DEVELOP FRIDAY INTO THE WEEKEND,
ESPECIALLY ON SATURDAY WHEN THE WEDGE IS AT ITS STRONGEST. HIGHS ON
SATURDAY SHOULD END UP AT LEAST AROUND 5 DEGREES BELOW NORMAL BUT
COULD TREND COOLER IN THE COMING DAYS. ABOVE NORMAL HIGHS MAY RETURN
BY EARLY NEXT WEEK AS THE CENTER OF THE HIGH SINKS SOUTHWARD TOWARDS
THE CAROLINAS BUT CONFIDENCE IS LOW AS THE WEDGE COULD LINGER WITH
NO TRUE EROSION MECHANISM EXPECTED TO ARRIVE. DRY CONDITIONS WILL
LINGER THROUGH EARLY NEXT WEEK.
NO MAJOR FREEZE CONCERNS THROUGH THE PERIOD WITH LOWS EXPECTED TO
REMAIN ABOVE FREEZING FOR LOCATIONS WHERE THE GROWING SEASON IS
STILL ACTIVE. IF THE PRESSURE GRADIENT IS ABLE TO RELAX ENOUGH
SATURDAY NIGHT, FROST MAY DEVELOP ACROSS THE NORTH CAROLINA AND
GEORGIA MOUNTAINS THANKS TO GREAT RADIATIONAL COOLING CONDITIONS.
AVIATION /00Z WEDNESDAY THROUGH SUNDAY/
AT KCLT AND ELSEWHERE: VFR THROUGH THE PERIOD AT TAF SITES. EXPECT
ANOTHER ROUND OF MOUNTAIN VALLEY FOG/LOW STRATUS OVERNIGHT INTO THE
PREDAWN HOURS, BUT SHOULD NOT IMPACT THE TERMINALS. WINDS GENERALLY
OUT OF THE N TO NNE, HOVERING AROUND 5KT THOUGH POSSIBLY GOING
LGT/VRB OVERNIGHT.
OUTLOOK: DRY AND VFR THROUGH EARLY NEXT WEEK OUTSIDE OF THE
POTENTIAL FOR PATCHY FOG AND LOW STRATUS EACH MORNING IN THE
MOUNTAIN VALLEYS AND NEAR LAKES.
GSP WATCHES/WARNINGS/ADVISORIES
GA...NONE.
NC...NONE.
SC...NONE.
AR/TDP
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