Area Forecast Discussion
Issued by NWS Charleston, WV
Issued by NWS Charleston, WV
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664 FXUS61 KRLX 200004 AFDRLX Area Forecast Discussion National Weather Service Charleston WV 804 PM EDT Sat Sep 19 2026 .WHAT HAS CHANGED... 802 PM Update... ~00z Aviation Forecast Discussion 312 PM Update... Chances of strong storms and locally heavy rain return to the area this evening and then persist into mid week. && .KEY MESSAGES... 1) Unsettled through mid week, with daily chances of locally heavy downpours and a few strong to severe thunderstorms. && .DISCUSSION... KEY MESSAGE 1... An upper-level trough and low, currently located over southern Idaho, is projected to track east into the central Plains this weekend into early next week. As it approaches, a weak ridge of high pressure will retreat south, permitting a series of disturbances to traverse the Middle Ohio Valley (MOV) and Central Appalachians, amid otherwise zonal flow. Meanwhile, a front lifts into the area on SUnday and the lingers nearby through the first part of the work week. Chances of showers and thunderstorms are expected to increase this evening and persist into the work week, with most substantial activity occurring in the vicinity of the front, and in conjunction with the passing disturbances. Heavy downpours and training storms will be capable of depositing a couple inches of rain in a fairly short amount of time. Thus, the primary concern during this time will be a heightened risk of flash flooding. A few strong to severe storms could also be capable of producing locally strong wind gusts. From mid to late week, the pattern remains unsettled as the upper trough progresses into the MOV and then slowly spirals towards the east coast. Additional precipitation over already saturated soils will sustain at least low-end flooding concerns for the majority of the work week. && .AVIATION /00Z SUNDAY THROUGH THURSDAY/... VFR and MVFR conditions remain this evening with SCT to BKN CIGs between 3,000 and 10,000 feet AGL. A line of thunderstorms is moving across central WV causing a significant amount of cloud to ground lightning and winds 30-40 MPH as it crosses the area. A few lingering showers and thunderstorms will remain across the area this evening, but a short reprieve is expected after ~03z. Valley fog is likely to form at many sites tonight into Sunday morning with IFR or lower conditions expected. Another complex of showers and thunderstorms moves into the area from the west between ~07-09z. Heavy rainfall will be the primary risk, but isolated damaging wind gusts are also possible. The mix of rainfall, low CIGs, and dense fog will create poor VIS for many sites between ~07-15z. Improvement to VFR is expected to occur between ~16-18z. Winds will be light to calm tonight with variable direction, becoming light(3-7kts) and S`rly tomorrow. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 00Z MONDAY... FORECAST CONFIDENCE: MEDIUM ALTERNATE SCENARIOS: Timing of showers/storms tonight and Sunday morning and associated restrictions may vary from the forecast. Restrictions and timing associated with fog tonight will likely vary as well. 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 SUN 09/20/26 UTC 1HRLY 00 01 02 03 04 05 06 07 08 09 10 11 EDT 1HRLY 20 21 22 23 00 01 02 03 04 05 06 07 CRW CONSISTENCY H H H H H H M M L L L L HTS CONSISTENCY H H H H H H H H L L L L BKW CONSISTENCY H H H H H H H H M L L H EKN CONSISTENCY H H H H H H L L L L L M PKB CONSISTENCY H H H H H H H H H M H H CKB CONSISTENCY H H H H H H M H H L H H AFTER 00Z MONDAY... IFR conditions possible in showers and storms each day through mid week. && .RLX WATCHES/WARNINGS/ADVISORIES... WV...None. OH...None. KY...None. VA...None. && $$ DISCUSSION...20 AVIATION...LTC