Area Forecast Discussion
Issued by NWS Charleston, WV
Issued by NWS Charleston, WV
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502 FXUS61 KRLX 282322 AFDRLX Area Forecast Discussion National Weather Service Charleston WV 722 PM EDT Fri Aug 28 2026 .WHAT HAS CHANGED... 00Z Aviation Forecast Discussion. Updated temps/dew points/RHs this evening to reflect current observations. 238 PM update... Lowered PoPs for this afternoon and evening across the higher terrain. 18Z aviation discussion update. && .KEY MESSAGES... 1.) Dome of high pressure will result in building heat through mid next week amid mainly dry weather. High temperatures in the upper 80s to low/mid 90s are expected across the lowlands beginning Sunday through much of the upcoming work week. && .DISCUSSION... KEY MESSAGE 1... An extended period of relatively quiet weather begins across the forecast area starting today courtesy of high pressure. The broad scale synoptic pattern will see an upper ridge that is currently positioned across the desert southwest, gradually shift eastward throughout the weekend and early/mid next week, eventually ending up across the Tennessee Valley. This translates into a lengthy period of mainly dry weather across the forecast area amid a steady warming trend. A few isolated showers do remain possible this afternoon and evening via terrain enhanced lift, with one or two ongoing at present across the northeast CWA. This also remains possible on Saturday afternoon/evening. A return to a somewhat more active period in terms of showers/storms could occur middle to end of next work week when the ridge is progged to flatten/shift by some guidance. High temperatures today in the low/mid 80s across the lowlands will transition to upper 80s to low 90s by Sunday as a late summer heat wave commences, then remain as such through much of the next work week, with even mid 90s possible in some locations on Tuesday/Wednesday. Mainly clear skies will result in plenty of sunshine during the day, with the potential for valley fog at night, dense in some locations. Tonight will be the coolest night of the period with lows in the 50s to low 60s across much of the area. Thereafter, mid 60s to low 70s are generally expected for overnight lows across the lowlands through much of next week. && .AVIATION /00Z SATURDAY THROUGH WEDNESDAY/... Nearby high pressure yields quiet daytime conditions over the airspace this evening and once again after daybreak Saturday morning. In between, sufficient radiational cooling with promote river valley fog anytime after 03Z for the majority of our TAF sites. IFR or worse conditions will prevail overnight, then branch back out to VFR areawide for the day Saturday. Surface flow will primarily be light and variable through the valid TAF period. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 00Z SUNDAY... FORECAST CONFIDENCE: Medium overnight; High after Saturday morning. ALTERNATE SCENARIOS: Timing, location, and intensity of fog tonight into Saturday morning may vary from the forecast. 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 SAT UTC 1HRLY 23 00 01 02 03 04 05 06 07 08 09 10 EDT 1HRLY 19 20 21 22 23 00 01 02 03 04 05 06 CRW CONSISTENCY H H H H H H H H M L M M HTS CONSISTENCY H H H H H H H H H H H M BKW CONSISTENCY H H H H H H H H H L H H EKN CONSISTENCY H H H H H H M H L L M M PKB CONSISTENCY H H H H H H H H H H M L CKB CONSISTENCY H H H H H H H M H L M M AFTER 00Z SUNDAY... IFR conditions are possible with river valley fog each morning through early next week. && .RLX WATCHES/WARNINGS/ADVISORIES... WV...None. OH...None. KY...None. VA...None. && $$ DISCUSSION...GW AVIATION...05