Area Forecast Discussion
Issued by NWS Charleston, WV

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000 FXUS61 KRLX 290909 AFDRLX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE CHARLESTON WV 509 AM EDT WED JUL 29 2015 .SYNOPSIS... HEAT CONTINUES ON TODAY BEFORE STRONG A COLD FRONT ARRIVES LATE TONIGHT. A DRY STRETCH WILL FOLLOW STARTING FRIDAY...WITH TEMPERATURES CLIMBING BACK ABOVE NORMAL OVER THE WEEKEND. && .NEAR TERM /UNTIL 6 PM THIS EVENING/... THE MAJORITY OF MODELS KEEP THE AREA DRY AHEAD OF AN APPROACHING COLD FRONT. ONLY THE NAM IS FASTER WITH THE PCPN ARRIVING TO SOUTHEAST OH BY 00Z THURSDAY. HOWEVER...A VERY JUICY AIRMASS AND HOT TEMPERATURES COULD PRODUCE ISOLATED TO SCATTERED AFTERNOON SHOWERS TODAY. KEPT SLIGHT CHANCE POPS ACROSS CENTRAL WV AND THE EASTERN MOUNTAINS. THE GFS AND ECMWF ARE SLOWER WITH THE COLD FRONT BRINGING THE BULK OF PCPN WEDNESDAY NIGHT INTO THURSDAY. WENT WITH A COMPROMISE HAVING CHANCE POPS REACHING SOUTHEAST OH AROUND 06Z THURSDAY SPREADING EAST INTO 12Z. BEHIND THE FRONT...FRESHER AIR IS EXPECTED TO LOWER DEWPOINTS INTO THE MID TO UPPER 60S. TEMPERATURES WILL CLIMB INTO THE LOWER 90S THIS AFTERNOON PER PLENTY OF SUNSHINE. WITH DEWPOINTS IN THE LOWER 70S...HEAT INDICES COULD REACH 100F THIS AFTERNOON. AT THE MOMENT SEEMS LIKE THERE WILL BE ISOLATED AREAS THAT WILL REACH 100F. WILL HOLD ON THE HEAT ADVISORY FOR NOW BUT WILL KEEP MENTION OF POSSIBLE HEAT ADVISORY IN THE HWO. TWEAKED THE SUPER BLEND NUMBERS FOR TEMPERATURES THROUGH THE PERIOD. && .SHORT TERM /6 PM THIS EVENING THROUGH FRIDAY/...
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REMNANTS OF A COLD FRONT WILL QUICKLY EXIT THE AREA THURSDAY MORNING. THEN A TRANSITION BACK INTO A STRONG SURFACE RIDGING PATTERN WITH THE TEMPERATURES AND DEWPOINTS SLOWLY CREEPING UPWARDS AGAIN...WITH DRY CONDITIONS.
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&& .LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/... EXTENDED REMAINS DRY UNTIL THE MIDDLE OF NEXT WEEK WHEN LOW CHANCES FOR POPS COME BACK INTO PLAY. LOWLAND FORECAST HIGHS RANGE FROM THE UPPER 80S TO 90 DEGREES...WITH THE MOUNTAINS THEIR USUAL 5-15 DEGREES OFF THE PACE. && .AVIATION /09Z WEDNESDAY THROUGH SUNDAY/...
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IR SATELLITE IMAGES SHOW FEW MID LEVEL CLOUDS PASSING ACROSS...BUT OVERALL MOSTLY CLEAR SKIES WILL PREVAIL. DEWPOINTS REMAIN AROUND 70 DEGREES. WITH TEMPERATURES DROPPING INTO THE LOWER 70S...EXPECT IFR FOG FORMATION OVER SOME RIVER VALLEYS DURING THE PREDAWN HOURS. PKB ALREADY SHOWING MVFR VISIBILITIES DUE TO FOG. EXPECT DENSE VALLEY FOG DEVELOPING AROUND 09Z AT MOST PLACES...EXCEPT BKW. ANY MORNING FOG WILL QUICKLY DISSIPATE BY 12-13Z...LEADING TO VFR CONDITIONS FOR WEDNESDAY. SCATTERED CONVECTION WED AFTERNOON WILL BE CONFINED MAINLY TO THE MOUNTAINS. FLOW WILL CONTINUE LIGHT AND VARIABLE AT THE SFC AND LIGHT NW ALOFT. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 06Z THURSDAY... FORECAST CONFIDENCE: MEDIUM TO HIGH. ALTERNATE SCENARIOS...TIMING AND INTENSITY OF OVERNIGHT AND WED MORNING FOG MAY VARY. 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 WED 07/29/15 UTC 1HRLY 09 10 11 12 13 14 15 16 17 18 19 20 EDT 1HRLY 05 06 07 08 09 10 11 12 13 14 15 16 CRW CONSISTENCY L L L L L M H H H H H H HTS CONSISTENCY L L L L M H H H H H H H BKW CONSISTENCY H H H H M M M M M M M M EKN CONSISTENCY L L L L L M H H H H H H PKB CONSISTENCY L L L L L M H H H H H H CKB CONSISTENCY L L L L L M H H H H H H AFTER 06Z THURSDAY... AHEAD OF AND ALONG A STRONG COLD FRONT...IFR POSSIBLE IN SHOWERS/STORM OVERNIGHT WEDNESDAY NIGHT INTO THURSDAY. LOW CLOUDS/FOG POSSIBLE IN WAKE OF FRONT IN THE SOUTH AND EAST THURSDAY NIGHT/EARLY FRIDAY MORNING.
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&& .RLX WATCHES/WARNINGS/ADVISORIES... WV...NONE. OH...NONE. KY...NONE. VA...NONE. && $$ SYNOPSIS...TRM/30/26 NEAR TERM...ARJ SHORT TERM...JW LONG TERM...26/DTC AVIATION...ARJ

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