775
FXUS62 KRAH 070526
AFDRAH
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RALEIGH NC
125 AM EDT TUE OCT 7 2025
SYNOPSIS
HIGH PRESSURE WILL BE OVER THE REGION FOR ONE MORE DAY BEFORE A COLD
FRONT BRINGS SHOWERS ON WEDNESDAY FOLLOWED BY COLDER TEMPERATURES
FOR THE END OF THE WEEK AND THE WEEKEND.
NEAR TERM /TODAY THROUGH TONIGHT/
AS OF 125 AM TUESDAY...
THE SURFACE HIGH THAT HAS REMAINED STEADY FOR DAYS JUST OFF THE
ATLANTIC COAST WILL FINALLY PUSH EAST TODAY, WITH RIDGING MOVING
ALONG THE COASTLINE BY SUNSET. A SURFACE LOW WILL BEGIN THE PERIOD
ALONG THE ONTARIO/QUEBEC BORDER, MOVING NORTHEAST THROUGH THE DAY
AND DRAGGING A SOUTHWESTWARD EXTENDING COLD FRONT TO THE EAST. WHILE
THE FRONT WILL BE WEST OF THE APPALACHIANS THIS EVENING, A ROGUE
SHOWER CANNOT BE RULED OUT IN THE TRIAD. AS THE FRONT MOVES OVER THE
MOUNTAINS TONIGHT, THE CHANCE OF SHOWERS WILL EXTEND EAST. WITH
MOSTLY SUNNY SKIES TODAY, MOST LOCATIONS WILL RISE INTO THE LOW TO
MID 80S - THE WARMEST DAY OUT OF THE NEXT SEVEN. INCREASING
CLOUDINESS OVERNIGHT ALONG WITH SOUTHERLY FLOW WILL ALSO MAKE
TONIGHT THE WARMEST OF THE NEXT SEVEN NIGHTS - LOWS WILL PRIMARILY
BE IN THE 60S WITH AN ISOLATED 70 DEGREE READING POSSIBLE.
SHORT TERM /WEDNESDAY AND WEDNESDAY NIGHT/
AS OF 125 AM TUESDAY...
THE COLD FRONT WILL BE ALONG THE SPINE OF THE APPALACHIAN MOUNTAINS
WEDNESDAY MORNING AND REACH THE COASTLINE BY WEDNESDAY EVENING. IN
BETWEEN, THERE IS A 50-80% CHANCE OF SHOWERS, LOWEST ACROSS THE
SOUTHEAST. THE RAINFALL WILL BE WELCOME, BUT WILL DO LITTLE AGAINST
THE DROUGHT, WITH TOTALS EXPECTED TO REMAIN LESS THAN HALF AN INCH.
WHILE THERE WILL BE SOME MINIMAL INSTABILITY TO ALLOW FOR
THUNDERSTORMS, A SEVERE WEATHER THREAT DOES NOT APPEAR TO BE
PRESENT. THE MORNING WILL SEE THE FOCUS OF SHOWERS WEST OF I-95,
WHILE THE AFTERNOON WILL SEE THE FOCUS OF SHOWERS EAST OF US-1.
WHILE A SHOWER COULD PERSIST SOUTH OF US-64 IN THE EVENING,
CONDITIONS SHOULD DRY OUT AFTER MIDNIGHT. WEDNESDAY WILL BE A
TRANSITION DAY IN REGARDS TO TEMPERATURES - HIGHS WILL DROP SEVERAL
DEGREES WITH PRECIPITATION, RANGING FROM THE MID 70S TO THE MID 80S.
THE DROP IN LOW TEMPERATURES WILL BE MORE NOTICEABLE WEDNESDAY
NIGHT, WITH MOST LOCATIONS 10 TO 15 DEGREES COLDER THAN THE NIGHT
BEFORE - THE FORECAST CALLS FOR TEMPERATURES FROM THE MID 40S TO THE
MID 50S.
LONG TERM /THURSDAY THROUGH MONDAY/
AS OF 125 AM TUESDAY...
* A SIGNIFICANT DROP IN TEMPERATURES BEHIND THE FRONT, WITH MAINLY
BELOW NORMAL HIGHS EXPECTED INTO EARLY NEXT WEEK.
* UNCERTAINTY REMAINS REGARDING A WEEKEND COASTAL LOW AND HOW FAR
WEST PRECIPITATION MAY STRETCH.
ALOFT, IN THE WAKE OF THE TROUGH, A S/W WILL MOVE ESEWD FROM THE TN
VALLEY TO OVER THE SOUTHEAST US THU/THU NIGHT, WHILE THE SUB-
TROPICAL RIDGE BUILDS NWD OVER THE PLAINS/FRONT RANGE. ANOTHER S/W
SHOULD TRACK ACROSS SRN ONTARIO/QUEBEC FRI/FRI NIGHT, WITH SOME S/W
ENERGY BREAKING OFF AND TRACKING ACROSS THE OH VALLEY. AS THE NRN
S/W CONTINUES EWD ACROSS QUEBEC/THE NORTHEAST US SAT/SAT NIGHT, THE
SRN S/W SHOULD STRENGTHEN, BECOMING A CLOSED LOW ALONG THE SOUTHEAST
OR MID-ATLANTIC COAST. MEANWHILE, THE RIDGE WILL SHIFT EASTWARD,
EXTENDING FROM THE SRN PLAINS NEWD TO THE GREAT LAKES BY MON. THERE
IS STILL SOME UNCERTAINTY WRT THE LOCATION, STRENGTH, AND
PROGRESSION OF THE LOW FROM SAT NIGHT ONWARD. AT THE SURFACE, AS THE
~1034 MB HIGH PROGRESSES EWD ACROSS THE GREAT LAKES/SRN ONTARIO AND
THE NORTHEAST US, IT WILL RIDGE SWD INTO THE AREA THU/FRI. HOW LONG
AND WHERE THE RIDGE LINGERS WILL DEPEND ON THE THE STRENGTH AND
LOCATION OF A COASTAL LOW, BUT FOR NOW, IT APPEARS THE COOL, NLY
FLOW WILL PERSIST OVER MUCH OF THE AREA THROUGH THE WEEKEND, EVEN IF
THE RIDGE AXIS SHIFTS WWD TO ALONG THE APPALACHIANS. THE COASTAL
LOW, WHICH IS EXPECTED TO DEVELOP OFF THE SOUTHEAST US COAST ON SAT,
SHOULD RAPIDLY DEEPEN SAT NIGHT/SUN AS IT LIFTS NWD TO NEAR THE NC
COAST BY SUN. THE PROGRESSION THEREAFTER REMAINS UNCERTAIN, WITH THE
GFS EVENTUALLY TAKING THE LOW NEWD AWAY FROM THE AREA AND THE EC
BRINGING IT INLAND OVER THE CAROLINAS, EARLY NEXT WEEK.
PRECIPITATION: THE NEXT CHANCE FOR SOME RAIN WILL BE OVER THE
WEEKEND, HIGHEST EAST, BUT WILL DEPEND ON THE TRACK AND STRENGTH OF
THE COASTAL LOW.
TEMPERATURES: BELOW NORMAL HIGHS EXPECTED THROUGH EARLY NEXT WEEK.
AVIATION /06Z TUESDAY THROUGH SATURDAY/
AS OF 125 AM TUESDAY...
TAF PERIOD: ONCE AGAIN, UNCERTAINTY REMAINS FOR FOG POTENTIAL
OVERNIGHT. AM NOT CONVINCED THAT ALL SITES HAVE A CHANCE FOR FOG
OVERNIGHT, AND HAVE REMOVED THIS MENTION FROM ALL LOCATIONS EXCEPT
RWI, WHERE THE ARRIVAL TIME WAS SLIGHTLY DELAYED. AFTER SUNRISE, ALL
LOCATIONS SHOULD DEVELOP A SOUTHERLY WIND BETWEEN 5-10 KT, UNLIKE
PREVIOUS DAYS WHERE THE WIND REMAINED LIGHT AND VARIABLE. CANNOT
RULE OUT AN ISOLATED SHOWER REACHING INT/GSO BEFORE 06Z WED WITH AN
APPROACHING COLD FRONT, BUT THE ODDS ARE TOO LOW TO INCLUDE AT THIS
TIME.
OUTLOOK: EXPECT WIDESPREAD MVFR CEILINGS AND ISOLATED IFR CEILINGS
ALONG WITH SHOWERS AS A COLD FRONT MOVES THROUGH TONIGHT AND
WEDNESDAY. MVFR CIGS COULD PERSIST INTO WEDNESDAY NIGHT. WHILE
SHOWERS SHOULD BE LIGHT, CANNOT RULE OUT ISOLATED LOCATIONS OF FOG
THURSDAY MORNING IF/WHERE HEAVIER RAIN OCCURRED ON WEDNESDAY. AT
THIS TIME, IT APPEARS THAT A SYSTEM POTENTIALLY DEVELOPING ALONG THE
COASTLINE WOULD REMAIN TOO FAR EAST TO HAVE MUCH IMPACT ON CENTRAL
NORTH CAROLINA TERMINALS.
RAH WATCHES/WARNINGS/ADVISORIES
NONE.
SYNOPSIS...GREEN
NEAR TERM...GREEN
SHORT TERM...GREEN
LONG TERM...KC
AVIATION...GREEN
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