Area Forecast Discussion
Issued by NWS Charleston, WV

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033 FXUS61 KRLX 141609 AFDRLX AREA FORECAST DISCUSSION National Weather Service Charleston WV 1209 PM EDT Fri Jun 14 2024 .SYNOPSIS...
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A chance for showers and storms this afternoon and evening with a cold front. An extended stretch of hot and dry weather will begin Sunday and last much of next week.
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&& .NEAR TERM /THROUGH TONIGHT/... As of 1110 AM Friday... Radar imagery show how weak convection, associated with an approaching cold front, is trying to develop across OH. Expect an increase in convection along the front as it crosses east this afternoon and evening. Adjusted down afternoon temperatures per latest surface observation trends, and abundant clouds noted. Rest of forecast remains on track. As of 645 AM Friday... Updated POPs for SE Ohio and the Huntington Tri-State area for the light showers that are encroaching on that area. Some may not be reaching the ground, but there are some moderate echoes that likely are getting to the surface. Otherwise, no major changes made at this time. As of 315 AM Friday... Mostly calm and clear the rest of tonight, though some clouds are working into our SE Ohio and Mid-Ohio Valley counties. We still have a few hours where some river valley fog could form, but none has as of press time. If any does form, it likely will be more patchy than previous nights. Another warm day is in store for today, with forecast highs several degrees above normal for most of the area. Some showers have been noted over ILN`s area, but have generally dissipated as they moved southeast towards our CWA. However, as a weak cold front gradually pushes south and southeast towards the area, some isolated to scattered showers and thunderstorms will eventually make it into the CWA. Greatest chances still look to be across the northern half of the CWA, but at least isolated activity is possible areawide. With surface CAPE over 1500 J/kg in spots, and modest shear of 25-40 kts possible, a few storms could have longevity and produce strong winds or marginally severe hail. Most storms should weaken and eventually dissipate in the few hours following sunset, with clearing expected overnight. Areas that receive rain today could then see some fog tonight. && .SHORT TERM /SATURDAY THROUGH SUNDAY NIGHT/...
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As of 1207 PM Friday... Upper-level high pressure will be centered over the Deep South Sunday, slowly moving northeastward throughout the day. Temperatures will start to heat up across the lowlands with afternoon highs expected to be in the lower 90s by Sunday afternoon. Winds will become southerly, leading to the return of more humidity. Expect heat indices to reach the lower and middle 90s across the lowlands Sunday afternoon. This will just be the start of an extended stretch of hot and dry weather on the way. The cooler spots will be the higher elevations of the West Virginia mountains, where temperatures will remain in the 70s and lower 80s during the hottest parts of the day.
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&& .LONG TERM /MONDAY THROUGH THURSDAY/...
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As of 1207 PM Friday... Confidence in the potential of a heat wave over the region next week is increasing. Models seem to be coming into better agreement regarding the placement of the upper-level ridge axis, which seems to be right over or slightly east of the Appalachian mountains for much of next week. This would provide support for an extended stretch of very hot and dry weather across most of the region, with the exception of the higher elevations, where temperatures will be cooler and isolated thunderstorms may develop. Rain chances next week look minimal at this time, but if the upper-level ridge ends up being farther to the east than what models are currently predicting, then our region could end up cloudier and cooler with more convection. That will be one thing to watch over the coming days with subsequent model runs. However, if our current forecast of largely dry weather pans out, many places will likely see worsening drought conditions throughout the week. From Monday through next Thursday, highs are projected to reach the upper 90s across the lowlands with heat index values approaching 100 degrees each afternoon. It will be very important to put heat safety into practice next week. This includes drinking plenty of fluids, taking frequent breaks in the air conditioning or the shade whenever possible, checking on the elderly and sensitive groups, and using plenty of sunscreen. Stay tuned for updates as the potential heat wave approaches.
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&& .AVIATION /16Z FRIDAY THROUGH TUESDAY/...
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As of 700 AM Friday... Aside from a brief reduction at EKN and mention of valley fog in the CRW METAR, fog has been largely a non-factor overnight. A few showers may impact HTS in the next few hours, but no flight category reductions are anticipated. As a cold front pushes down from the north and northwest this afternoon and evening, showers and thunderstorms will develop across the area, especially the northern half of the CWA. However, coverage is questionable so POPs were kept on the lower side. SHRA and TS were not included as prevailing weather in any TAFs, but VCTS was put in for all TAFs except CRW and BKW. With some rain this afternoon/evening, and clearing and lighter winds tonight, fog is more likely tonight, and was included as prevailing in a few TAFs. Outside of any t-storms, winds should remain on the lighter side - generally SW-W`ly ahead of the front, and N`ly once it pushes through. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 18Z SATURDAY... FORECAST CONFIDENCE: Medium due to uncertainty on fog extent and timing tonight, and timing/coverage of t-storms later today. ALTERNATE SCENARIOS: Fog extent and timing tonight may differ from the forecast. Thunderstorms could wind up a bit more widespread than expected. 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. UTC 1HRLY 15 16 17 18 19 20 21 22 23 00 01 02 EDT 1HRLY 11 12 13 14 15 16 17 18 19 20 21 22 CRW CONSISTENCY H H H H H H H H H H H H HTS CONSISTENCY H H H H H H H H H H H H BKW CONSISTENCY H H H H H H H H H H H H EKN CONSISTENCY H H H H H H H H H H H H PKB CONSISTENCY H H H H H H H H H H H H CKB CONSISTENCY H H H H H H H H H H H H AFTER 18Z SATURDAY... No widespread IFR expected at this time.
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&& .RLX WATCHES/WARNINGS/ADVISORIES... WV...None. OH...None. KY...None. VA...None. && $$ SYNOPSIS...FK/JMC NEAR TERM...FK/ARJ SHORT TERM...JMC LONG TERM...JMC AVIATION...FK