


Area Forecast Discussion
Issued by NWS Charleston, WV
Issued by NWS Charleston, WV
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054 FXUS61 KRLX 230052 AFDRLX AREA FORECAST DISCUSSION National Weather Service Charleston WV 852 PM EDT Fri Aug 22 2025 .SYNOPSIS... Mainly dry and warmer today with an isolated shower or storm possible in/near the mountains. Strong cold front crosses this weekend, bringing a better chance for showers/storms. Cooler and mainly dry next week. && .NEAR TERM /THROUGH SATURDAY/... As of 850 PM Friday... Extended duration of showers along the higher terrain through late this evening. Should continue to see these decrease in intensity until falling apart. As of 300 PM Friday... Lingering low stratus across the northwest lowlands is finally beginning to mix out, with diurnal Cu having developed throughout the rest of the forecast area where clearing occurred earlier. This will translate into a mixture of clouds and sunshine for the afternoon and evening. While much of the area remains dry, weak low/mid level flow and modest buoyancy south/east leads to the potential for isolated showers and perhaps a thunderstorm or two along the spine of the higher terrain via lift courtesy of anabatic convergence. Any activity that develops will quickly diminish near or slightly after sunset. Highs today will be slightly warmer than yesterday (mid 80s lowlands; 70s mountains). The overnight will feature seasonably warm temperatures, with low/mid 60s across the lowlands, while mid 50s to low 60s in the mountains. Some river valley fog is expected to develop once again. The chance for showers/storms returns throughout the day on Saturday across a larger portion of the area courtesy of return flow and associated low/mid level moisture advection, with a weak pressure trough being the main forcing mechanism. The best chance for rain will be in/near the mountains (30-60%), with gradually decreasing chances further northwest. High temperatures on Saturday will be similar to that of today, perhaps a degree or two warmer. && .SHORT TERM /SATURDAY NIGHT THROUGH SUNDAY NIGHT/... As of 300 PM Friday... The chance for showers/storms will continue Saturday night and on Sunday as a cold front slowly approaches and eventually crosses the area, bringing the forecast area its best chance for rain over the next week. The highest probability for rain is locations southeast of the Ohio River, particularly in/near the mountains (60-70%), with gradually decreasing chances further northwest. While severe weather is not anticipated, a few strong storms with gusty winds does remain possible as the front crosses on Sunday, along with the potential for locally heavy rain. Given antecedent very dry conditions, the probability for any hydro issues remains quite low, but non-zero. Dry weather returns area-wide Sunday night following the passage of the front. High temperatures on Sunday will be in the low/mid 80s across the lowlands, with upper 60s and 70s in the mountains. Lows will be in the 50s area-wide Sunday night. && .LONG TERM /MONDAY THROUGH FRIDAY/... As of 300 PM Friday... Mainly dry and significantly cooler weather is expected for the start of the new work week following the passage of the cold front on Sunday, as broad surface high pressure gradually noses in from the west. High temperatures will generally be in the 70s across the lowlands, with upper 50s and 60s across the mountains, with Tuesday currently expected to be the coolest day. Lows will range from the mid 40s to mid 50s in the lowlands, with upper 30s and 40s in the mountains. River valley fog is expected each night. Slightly warmer temperatures can be expected on Wednesday, but particularly by Thursday. While mainly dry weather is expected, weak upper waves moving through the broad/high amplitude upper trough across the eastern CONUS will lead to the potential for ISOLD showers at times, especially at times w/ a favorable moisture feed from the Great Lakes and/or diurnal heating given cold pool aloft. The `best` chance for this would be later Monday through Tuesday, with building/crossing high pressure bringing dry weather thereafter. Will stay with central guidance for now that maintains a dry forecast, but the potential for some showers does exist, especially in/near the higher terrain. && .AVIATION /01Z SATURDAY THROUGH WEDNESDAY/... As of 720 PM Friday... An isolated shower is developing near KBKW which may affect the terminal for the first 30-60 minutes of this TAF period before dissipating. Otherwise, VFR conditions are expected to prevail at most terminals for the first few hours of the TAF period. However, as winds become light and variable overnight, MVFR to IFR conditions are expected to develop in valley fog and low stratus at KEKN, KCRW, KHTS, KPKB, and KCKB between 06Z and 13Z. While guidance favors dense fog, there may be just enough boundary layer flow to keep conditions primarily as low stratus rather than dense fog. After 13Z Saturday, any fog and stratus will lift, with VFR conditions returning to all TAF sites. Scattered showers and thunderstorms may develop during the afternoon, primarily impacting terminals in West Virginia (KCRW, KHTS, KBKW, KCKB, KEKN) with brief MVFR conditions possible, although confidence in convective coverage is too low to include in this TAF package. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 00Z SUNDAY... FORECAST CONFIDENCE: Medium. ALTERNATE SCENARIOS: Restrictions overnight with fog and/or low stratus may vary from the forecast. Convection may approach the terminals Saturday afternoon. 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 08/23/25 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 H L M M M M HTS CONSISTENCY H H H H H H H L M M M M BKW CONSISTENCY M H H H H H H H H M H M EKN CONSISTENCY H H H H H H L M M M M M PKB CONSISTENCY H H H H H H H L M M M M CKB CONSISTENCY H H H H H H H H H M L H AFTER 00Z SUNDAY... Brief IFR possible in showers/thunderstorms through Sunday. IFR possible in river valley fog each morning beginning on Monday. && .RLX WATCHES/WARNINGS/ADVISORIES... WV...None. OH...None. KY...None. VA...None. && $$ SYNOPSIS...GW NEAR TERM...JP/GW SHORT TERM...GW LONG TERM...GW AVIATION...JP