Area Forecast Discussion
Issued by NWS Charleston, WV
Issued by NWS Charleston, WV
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636 FXUS61 KRLX 120523 AFDRLX AREA FORECAST DISCUSSION National Weather Service Charleston WV 123 AM EDT Wed Jun 12 2024 .SYNOPSIS... High pressure keeps warm and dry conditions through Thursday. Chance for showers and isolated storms on Friday. Becoming hot and muggy to end the week and start next week. && .NEAR TERM /THROUGH TONIGHT/... As of 120 AM Wednesday... A quiet pattern continues as troughing over the east coast is increasingly replaced by high zonal flow aloft with high pressure at the surface. The main forecast issue for this morning and again Thursday morning will be coverage of fog with near zero flow through 10kft, seasonably moist low levels, and dry air in the mid-levels overhead. With lack of substantial recent rainfall will confined any significantly reduced visibilities to the valleys with a patchy fog mention elsewhere. && .SHORT TERM /THURSDAY THROUGH FRIDAY NIGHT/... As of 140 PM Tuesday... High pressure will continue to be in control across the area on Thursday, with hot conditions. There could be a pop up shower or storm during peak heating across the higher terrain, but overall, expecting a mainly dry forecast. On Friday, a cold front will move into the region, providing a chance for showers and storms once again. An isolated strong to severe storm cannot be completely ruled out during the period, with mainly a damaging wind potential. But overall, coverage of convection doesn`t appear to be that widespread at this point. The front and associated cloud cover and convection will taper high temperatures slightly on Friday compared to Thursday. Front should sag to the south of the area late Friday night into early Saturday. && .LONG TERM /SATURDAY THROUGH TUESDAY/... As of 1205 PM Tuesday... Dry conditions and near seasonal temperatures will take hold for Saturday behind the front. Conditions will become increasingly hot and humid by the end of the week into early next week, as upper heights build, and a warm front moves through the region, with dew points surging across the area, possibly into the upper 60s to lower 70s. This combined with temperatures forecast to be in the mid to upper 90s across the lowlands, particularly on Monday, will result in heat indices nearing 100. In addition, shower and thunderstorm activity looks to increase across the area during the period. && .AVIATION /06Z WEDNESDAY THROUGH SUNDAY/... As of 120 AM Wednesday... With just thin cirrus floating overhead, light winds, and dry mid- levels above us, valley fog will be the main forecast concern this morning. Already starting to see patchy fog develop near CRW/EKN and would expect the valleys to continue to fill in toward daybreak. Highest confidence in IFR impacts at EKN/CRW/CKB, but could also see a brief period of IFR near PKB/HTS near daybreak. Any fog that does form mixing out through 13Z. Thereafter, continued SCT to occasionally BKN cirrus. Winds remain light, weakly favoring a northerly direction. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 06Z THURSDAY... FORECAST CONFIDENCE: Medium for fog this morning. Otherwise, high. ALTERNATE SCENARIOS: Extent/duration of fog this morning could 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 WED 06/12/24 UTC 1HRLY 04 05 06 07 08 09 10 11 12 13 14 15 EDT 1HRLY 00 01 02 03 04 05 06 07 08 09 10 11 CRW CONSISTENCY H H H M L L L L H H H H HTS CONSISTENCY H H H H H M M M H H H H BKW CONSISTENCY H H H H H H M M H H H H EKN CONSISTENCY H H M L M M M M H H H H PKB CONSISTENCY H H H H H H M M H H H H CKB CONSISTENCY H H H M L L L M H H H H AFTER 06Z THURSDAY... IFR valley fog possible Thursday morning. && .RLX WATCHES/WARNINGS/ADVISORIES... WV...None. OH...None. KY...None. VA...None. && $$ SYNOPSIS...JP/MEK NEAR TERM...JP SHORT TERM...SL LONG TERM...SL AVIATION...JP