906
FXUS61 KRLX 040547
AFDRLX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE CHARLESTON WV
147 AM EDT TUE AUG 4 2026
WHAT HAS CHANGED
06Z AVIATION DISCUSSION UPDATE.
KEY MESSAGES
1) BUILDING HIGH PRESSURE WILL LIMIT DAYTIME SHOWER AND STORM
CHANCES TO THE HIGHER TERRAIN THROUGH TUESDAY.
2) ACTIVE WEATHER RETURNS FOR MIDWEEK ONWARD WITH DAILY SHOWERS
AND STORMS AMID HOT AND MUGGY CONDITIONS.
DISCUSSION
KEY MESSAGE 1...
CONVECTIVE ACTIVITY THIS AFTERNOON LOOKS TO BE ORIENTED ALONG
A COLD FRONT THAT COMPLETED ITS PASSAGE THROUGH THE FORECAST
AREA EARLIER THIS MORNING. STRONGER STORMS THIS AFTERNOON WILL
THEREFORE REMAIN OUT OF OUR TERRITORY, BUT A FEW LINGERING
SHOWERS WILL PROMPT ONE FINAL DOUSING OF RAIN OVER THE FOOTHILLS
AND LOWER APPALACHIAN MOUNTAINS AS THE FRONT DRIFTS TO THE SOUTH
AND EAST.
HIGH PRESSURE BUILDING IN FROM THE NORTHWEST WILL NUDGE
LINGERING OVERCAST SOUTHWARD THROUGH THE COURSE OF THE AFTERNOON
AND EVENING, RETURNING SUNSHINE TO MOST OF THE FORECAST AREA BY
THE END OF THE DAY. WEBCAMS ON REGIONAL ROAD NETWORKS SHOW THE
RETURN OF SUNSHINE ACROSS THE NORTH-CENTRAL LOWLANDS, WHILE
HERE IN THE CHARLESTON METRO AREA WE REMAIN UNDER BLANKETED
OVERCAST. TEMPERATURE SPREAD FOR TODAY WILL BE REFLECTED BY
SATELLITE TRENDS, WITH LOCATIONS UNDER AMPLE SUNSHINE RISING
INTO THE LOW 80S AND IN THE 60S/70S FOR THOSE UNDER LINGERING
CLOUDS.
OPTIMAL CONDITIONS FOR FOG DEVELOPMENT WILL TAKE SHAPE TONIGHT
WITH RADIATIONAL COOLING AMID CLEARING SKIES. FOG EROSION AFTER
DAYBREAK TUESDAY MORNING WILL GIVE WAY TO A MOSTLY DRY DAY UNDER
THE GUISE OF PASSING HIGH PRESSURE. DAYTIME TEMPERATURES SOAR
INTO THE 70S ALONG THE HIGHER TERRAIN AND INTO THE 80S ACROSS
THE LOWLANDS FOR TUESDAY AFTERNOON.
KEY MESSAGE 2...
UPPER LEVEL TROUGHING ARRIVING AROUND MIDWEEK WILL WORK IN
TANDEM WITH A CLOSED LOW OVER THE MISSISSIPPI VALLEY TO PROMOTE
ACTIVE WEATHER SETTLING BACK OVER THE REGION. INCREASED
MOISTURE, COUPLED WITH WARM TEMPERATURES, WILL YIELD AN
ENVIRONMENT CONDUCIVE FOR DIURNALLY DRIVEN SHOWER AND
THUNDERSTORM DEVELOPMENT EACH DAY FOR THE SECOND HALF OF THE
WORK WEEK AS A RESULT.
MACHINE LEARNING PROBABILITIES HINT AT THE RETURN OF STRONG TO
POTENTIALLY SEVERE ACTIVITY BEGINNING ON THURSDAY AND INTO THE
WEEKEND. THIS WILL GIVE RISE TO THE RISK OF LOCALLY DAMAGING
WIND GUSTS AND HEAVY DOWNPOURS, WHICH COULD LEAD TO FLASH
FLOODING CONCERNS. THIS SUMMERTIME WEATHER PATTERN LOOKS TO
PREVAIL THROUGH THE WEEKEND AND INTO THE START OF NEXT WEEK
WHILE THE LONGWAVE TROUGH REMAINS PLANTED OVER THE EASTERN HALF
OF THE COUNTRY.
AVIATION /06Z TUESDAY THROUGH SATURDAY/
VALLEY FOG HAS QUICKLY DEVELOPED ACROSS THE SOUTHERN COALFIELDS
OVER THE PAST COUPLE OF HOURS, AND IS GRADUALLY DEVELOPING
FURTHER NORTHWARD. WHILE DRY ADVECTION FROM THE NORTH WILL
PROBABLY SLOW EXPANSION OF FOG GOING FORWARD, DO EXPECT MOST
TERMINALS TO BE IMPACTED AS THE NIGHT GOES ON WITH MVFR OR
WORSE, HTS BEING THE EXCEPTION. ANY FOG SHOULD QUICKLY LIFT /
DISSIPATE SHORTLY AFTER SUNRISE TO 13Z. THIS GIVES WAY TO A
MAINLY DRY AND VFR DAY AMID A FEW/SCT CU FIELD, WITH ISOLD
SHOWERS AND PERHAPS A RUMBLE OF THUNDER POSSIBLE ACROSS SW VA
AND EASTERN/SOUTHERN WV. BRIEF MVFR VSBY COULD OCCUR AT BKW WITH
THIS, BUT CONFIDENCE IS TOO LOW FOR ANYTHING OTHER THAN A VCSH
MENTION AT THIS POINT.
CALM FLOW THIS MORNING WILL TRANSITION TO LIGHT ENE TO ESE
DURING THE DAY.
FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 06Z WEDNESDAY...
FORECAST CONFIDENCE: MEDIUM THIS MORNING, HIGH THEREAFTER.
ALTERNATE SCENARIOS: EXTENT AND TIMING OF VALLEY FOG THIS
MORNING AND ASSOCIATED RESTRICTIONS MAY VARY FROM THE FORECAST.
BRIEF MVFR VSBY COULD OCCUR ACROSS THE SOUTH (INCLUDING AT BKW)
WITH ISOLD SHOWERS AND A FEW STORMS TODAY.
EXPERIMENTAL TABLE OF FLIGHT CATEGORY OBJECTIVELY SHOWS CONSISTENCY
OF WFO FORECAST TO AVAILABLE MODEL INFORMATION:
H = HIGH: TAF CONSISTENT WITH ALL MODELS OR ALL BUT ONE MODEL.
M = MEDIUM: TAF HAS VARYING LEVEL OF CONSISTENCY WITH MODELS.
L = LOW: TAF INCONSISTENT WITH ALL MODELS OR ALL BUT ONE MODEL.
DATE TUE 08/04/26
UTC 1HRLY 05 06 07 08 09 10 11 12 13 14 15 16
EDT 1HRLY 01 02 03 04 05 06 07 08 09 10 11 12
CRW CONSISTENCY M M L L L M L L H H H H
HTS CONSISTENCY H H H H H H H H H H H H
BKW CONSISTENCY M M M L L M M H H H H H
EKN CONSISTENCY M L L M M M M L H H H H
PKB CONSISTENCY H H M M M L L H H H H H
CKB CONSISTENCY H H M M M M M H H H H H
AFTER 06Z WEDNESDAY...
BRIEF IFR RESTRICTIONS ARE POSSIBLE WITH DAILY SHOWERS AND
THUNDERSTORMS WEDNESDAY ONWARD, PRIMARILY DURING THE AFTERNOON
AND EVENING HOURS. IFR COULD ALSO OCCUR IN RIVER VALLEY FOG
DURING THE EARLY MORNING HOURS THIS WEEK.
RLX WATCHES/WARNINGS/ADVISORIES
WV...NONE.
OH...NONE.
KY...NONE.
VA...NONE.
DISCUSSION...05
AVIATION...GW
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