


Area Forecast Discussion
Issued by NWS Charleston, WV
Issued by NWS Charleston, WV
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908 FXUS61 KRLX 031453 AFDRLX AREA FORECAST DISCUSSION National Weather Service Charleston WV 1053 AM EDT Thu Apr 3 2025 .SYNOPSIS... A system serves up showers and thunderstorms at times through the weekend, with flooding increasingly likely for the Mid-Ohio Valley region. && .NEAR TERM /THROUGH TONIGHT/... As of 1050 AM Thursday... The forecast is behaving as anticipated this morning, so only very minor adjustments were necessary. National mosaic radar depicts a conveyor belt of rain spanning the coast of New Jersey and down into Texas, cutting through the heart of our forecast area. This denotes the current placement of the frontal boundary that will now take residency overhead for the next several days. So far this morning, the front has contributed to a hybrid of severe weather and localized flooding issues. This combination is progged to continue through the course of the afternoon and evening before transitioning over to mainly a flooding threat. As of 1235 AM Thursday... Showers and thunderstorms associated with a cold front will push into our area early this morning. A low level jet (currently 60 knots at 3000 feet near Charleston) will keep very strong winds just off the surface this morning. There is concern that these storms could mix these winds to the ground and produce damaging wind gusts. Model soundings also show helicity values of 800 to 900 as the line hits our western counties with shear values of 50 to 60. Therefore, tornados are also a possibility. With effective CAPE of 500 to 1000 in this area as well, some large hail is possible. The cold front will then stall over eastern Kentucky and West Virginia today and tonight. Heating south of the front should once again create conditions favorable for severe weather this afternoon. The threat of flash flooding also increases. A couple of meso models are showing some heavy precipitation getting into northeastern West Virginia, although the majority are not. This does lead to concerns that the Flood Watch may need to be extended across the rest of northern West Virginia, but will hold off for now until models are in better agreement. && .SHORT TERM /FRIDAY THROUGH SUNDAY NIGHT/... As of 405 AM Thursday... Active weather continues in the short term with additional chances for showers and thunderstorms associated with a stationary boundary across the Ohio Valley. The boundary will likely be situated somewhere along the Ohio River early Friday before lifting northward as a warm front, shifting more warm and moist air back into the southern half of our area. This will provide the focus for renewed chances of showers and thunderstorms through the weekend, with the heaviest axis of precipitation for our area across NE KY, SE OH, and far western WV. There will be the potential for a few of the thunderstorms Friday and Friday night to be strong to severe, highly dependent on the front location and the amount of instability that can be realized given substantial antecedent precipitation and cloud cover. There is a slightly better chance for some severe weather across a the western two-thirds of the area Saturday, where a bit more instability can be realized, pending once again the location of the frontal boundary and how the previous day plays out as each day is highly dependent on mesoscale features that won`t be resolved until the near term. Nonetheless, heavy rain can be expected with the activity through the weekend, leading to potential for flooding across mainly western WV, SE OH, and NE KY. The stalled boundary should finally be kicked eastward thanks to an upper level shortwave that will swing southeast across the region Sunday, putting an end to the continuous stream of moisture. After the frontal passage, much cooler and drier conditions are expected into early next week. && .LONG TERM /MONDAY THROUGH WEDNESDAY/... As of 405 AM Thursday... As the deep upper level trough shifts across the region, colder temperatures are expected early in the week, with a slow warming trend after Tuesday. Some scattered showers and even snow is possible through early Tuesday and again late Wednesday as another system approaches from the west. No snow accumulations expected at this time. Runoff as a result of persistent rainfall this weekend may also persist in area creeks, streams, and rivers leading to a continued possibility of flooding even after most precipitation comes to an end early next week. && .AVIATION /15Z THURSDAY THROUGH MONDAY/... As of 510 AM Thursday... Showers and thunderstorms associated with a cold front are pushing across the area this morning, creating brief IFR conditions. A low level jet (currently 50 knots at 3000 feet near Charleston) will keep very strong winds just off the surface this morning. This will allow the storms to produce damaging wind gusts. Tornados are also possible. Behind the line, some rain will create MVFR or IFR conditions for an hour or two. The line should weaken some as it pushes into eastern West Virginia. The cold front will stall over the area today and tonight. This will create some MVFR clouds north of the front, with some areas dropping to IFR tonight. Generally VFR clouds can be expected south of the front. However, showers and thunderstorms at times will create brief IFR conditions. Some thunderstorms this afternoon south of the cold front could become severe. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 12Z FRIDAY... FORECAST CONFIDENCE: Medium this morning, then low. ALTERNATE SCENARIOS: Timing and intensity of restrictions with showers and thunderstorms could vary. The location of the front stalling could vary. 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 M M H H H H M HTS CONSISTENCY H H L H H H H H H H H M BKW CONSISTENCY H H H H H H H M H M M M EKN CONSISTENCY H H H H H M M M L H M M PKB CONSISTENCY H L H H H H H H H M M M CKB CONSISTENCY H H H H L M M H H H H H AFTER 12Z FRIDAY... IFR conditions possible in showers and thunderstorms Friday night through Sunday. && .RLX WATCHES/WARNINGS/ADVISORIES... WV...Flood Watch through Sunday morning for WVZ005>011-014-017-019. OH...Flood Watch through Sunday morning for OHZ066-067-075-076- 083>087. KY...Flood Watch through Sunday morning for KYZ101>103-105. VA...None. && $$ SYNOPSIS...28/RPY NEAR TERM...MEK/RPY SHORT TERM...28 LONG TERM...28 AVIATION...RPY