Area Forecast Discussion
Issued by NWS Charleston, WV

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000 FXUS61 KRLX 170550 CCA AFDRLX Area Forecast Discussion...CORRECTED National Weather Service Charleston WV 150 AM EDT Sun Sep 17 2017 .SYNOPSIS... Weak high pressure through the weekend and most of next week, providing warm afternoons and cool nights. && .NEAR TERM /THROUGH TODAY/...
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As of 130 AM Sunday... No changes necessary. As of 618 PM Saturday... While there is still the possibility of a few showers developing this evening, it does not appear that coverage will be as high as expected. So have lowered PoPs top slight chance category for the next few hours. Otherwise, nothing else changes at this time. As of 1250 PM Saturday... A high pressure system will remain over the area. Low level moisture is trapped under the high however, possible allowing for some afternoon showers in the WV mountains. Expect some dense fog to form again tonight.
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&& .SHORT TERM /TONIGHT THROUGH TUESDAY NIGHT/... As of 230 PM Saturday... Weak high pressure at the surface and aloft will lead to slightly above normal temperatures. Expect patchy dense river valley fog each morning. Isolated to scattered showers and thunderstorms are possible both Sunday and Monday afternoon, across the mountains. && .LONG TERM /WEDNESDAY THROUGH SATURDAY/... As of 230 PM Saturday... No significant systems foreseen in the extended. There will be a lingering weakness in the mean upper level flow that may help to generate a few showers or thundershowers each afternoon, primarily across the high terrain. && .AVIATION /05Z SUNDAY THROUGH THURSDAY/... As of 130 AM Sunday... Mostly clear skies, calm flow and abundant low level moisture will allow for radiational cooling and associated dense IFR/LIFR fog along most river valleys. Satellite and sfc obs suggest dense river valley fog has already develop. Any fog should start dissipating around 13-14Z. Expect VFR cumulus deck once again forming by mid morning. A few showers are possible across West Virginia mountains after 18Z. Another dense fog event will be possible tonight into Monday morning. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 06Z MONDAY... FORECAST CONFIDENCE: High. ALTERNATE SCENARIOS: None. 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 09/17/17 UTC 1HRLY 03 04 05 06 07 08 09 10 11 12 13 14 EDT 1HRLY 23 00 01 02 03 04 05 06 07 08 09 10 CRW CONSISTENCY H H L L L L L L L L L M HTS CONSISTENCY M M L L L L L L L M M L BKW CONSISTENCY H H H H M M M M M M M M EKN CONSISTENCY L L L L L L L L L L L L PKB CONSISTENCY H L M M L L M L L L L L CKB CONSISTENCY H L L L L L L L L L L M AFTER 06Z MONDAY... No widespread IFR conditions at this time. && .RLX WATCHES/WARNINGS/ADVISORIES... WV...None. OH...None. KY...None. VA...None. && $$ SYNOPSIS...RPY/30 NEAR TERM...JSH/ARJ/RPY SHORT TERM...30 LONG TERM...30 AVIATION...ARJ is the U.S. government's official web portal to all federal, state and local government web resources and services.