


Area Forecast Discussion
Issued by NWS Charleston, WV
Issued by NWS Charleston, WV
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472 FXUS61 KRLX 180032 AFDRLX AREA FORECAST DISCUSSION National Weather Service Charleston WV 832 PM EDT Tue Jun 17 2025 .SYNOPSIS... Heavy downpours and flood potential gradually wave tonight, as another disturbance crosses the area. Strong cold front increases the severe potential for Thursday. && .NEAR TERM /THROUGH WEDNESDAY/... As of 830 PM Tuesday... Showers and thunderstorms were producing heavy downpours, but movement was quick enough and coverage sparse enough to preclude flash flooding so far. Temperatures and dew points were on track on another very warm and humid evening. As of 225 PM Tuesday... Key Points: * Flood Watch in effect through this evening. * Isolated storms could produce damaging winds this afternoon or evening. Mainly isolated showers and a few storms have developed throughout the past few hours across the region, but fortunately they have been moving faster than recent days, so no hydro issues as of yet. Shower and storm activity is expected to blossom as we go through the afternoon and into the evening, so increased coverage could lead to a greater risk of training storms, and more intense rainfall is likely, as well. It`s hard right now to pinpoint any one area for flooding potential, as activity may not be focused in any one area, and it likely will be conditional on if some areas can get training or hit multiple times. Additionally, WPC and much of the guidance did bump down the QPF somewhat over the area, so it`s possible we may largely miss out on flooding this time around. A marginal risk of severe weather has been highlighted for portions of northeastern West Virginia, where isolated storms could produce locally damaging winds. However, it will be mainly be a concern if storms can get enough vertical growth, or if we can get some clustering of storms to occur. Otherwise, shear is paltry, so it will be hard to get much in the way of organization or sustained activity. Beyond the flooding concerns, it will remain warm and humid through tomorrow. Dew points in the upper 60s to lower 70s will keep overnight lows very mild tonight, and SW`ly winds and some patchy sunshine tomorrow will push highs into the mid-80s for most of the lowlands, and into the 70s for the mountains. Heat index values are forecast to peak in the low to mid 90s. && .SHORT TERM /WEDNESDAY NIGHT THROUGH FRIDAY NIGHT/... As of 1205 PM Tuesday... Unsettled weather pattern, with a warm and humid air mass in place, continues in the short term period. Wednesday evening into Thursday, an upper trough, will push east through the area, with the frontal boundary that has been located to our north and west, finally sweeping through the area. Severe weather may be possible during this period, and spc already has parts of the area highlighted for Wednesday night and Thursday, with a damaging wind threat looking to be most likely. Models tend to differ a bit with the timing of the frontal passage, and a slower timing to the front/more into the afternoon hours would likely result in a greater threat for severe on Thursday afternoon than is currently highlighted. For now, SPC has much of the area in a marginal risk, with the slight risk located to our east Thursday, with a marginal risk Wednesday night from any lingering convection that develops to our west on Wednesday evening and makes its way eastward into our area. Damaging winds are the primary hazard. Overall drier weather is expected later Thursday and Friday behind the departing system, however, occasional light showers cannot be completely ruled out as additional weak shortwaves cross the area. && .LONG TERM /SATURDAY THROUGH TUESDAY/... As of 1205 PM Tuesday... Mainly dry and increasingly hot this weekend into early next week with a building upper ridge across the eastern U.S. By early next week, daytime high temperatures should reach the mid 90s across much of the lowlands. This combined with dew points in the 70s, will result in heat indices likely hitting advisory criteria Sunday through Tuesday. An isolated shower or storm is possible during the afternoons during this period. && .AVIATION /00Z WEDNESDAY THROUGH SUNDAY/... As of 800 PM Tuesday... Showers and thunderstorms moving through the area this evening may impact TAF sites with MVFR to brief IFR conditions, along with gusty winds. This would most likely impact CKB with a lesser chance EKN and BKW, and nothing more than MVFR showers elsewhere, PKB, HTS and CRW, through 02-03Z tonight. The chance for rain diminishes overnight, but MVFR stratocu is likely to form overnight, and lower to IFR stratus northern sites PKB, CKB and perhaps EKN during the daylight morning hours Wednesday. The stratus and stratocumulus lifts into a VFR cumulus field Wednesday afternoon. There is the chance for a shower or early afternoon thunderstorm Wednesday. Light south to southwest surface flow tonight into Wednesday morning should be enough to preclude much in the way of fog formation overnight, and will become a bit gusty from the southwest by Wednesday afternoon. Flow aloft will be light to moderate southwest. FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 00Z THURSDAY... FORECAST CONFIDENCE: Medium. ALTERNATE SCENARIOS: Timing and intensity of showers/storms and resultant impacts on CIGs/VSBY may vary, particularly this evening and on Wednesday. There may be a bit more overnight fog formation than 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. UTC 1HRLY 21 22 23 00 01 02 03 04 05 06 07 08 EDT 1HRLY 17 18 19 20 21 22 23 00 01 02 03 04 CRW CONSISTENCY M M L H H H H H H H M H HTS CONSISTENCY L L L M M M L M H H H H BKW CONSISTENCY H H H M H H H H L M H H EKN CONSISTENCY H H H H H H H M L M L H PKB CONSISTENCY M L L M H H H M M H H H CKB CONSISTENCY H H H M M H H H H H H H AFTER 00Z THURSDAY... Brief IFR possible in rounds of showers and thunderstorms through Thursday. Locally heavy rain Thursday afternoon could yield patchy fog or low stratus Friday morning. && .RLX WATCHES/WARNINGS/ADVISORIES... WV...Flood Watch until 10 PM EDT this evening for WVZ005>011- 013>020-024>034-039-040-515>526. OH...Flood Watch until 10 PM EDT this evening for OHZ066-067-075- 076-083>087. KY...Flood Watch until 10 PM EDT this evening for KYZ101>103-105. VA...Flood Watch until 10 PM EDT this evening for VAZ003-004. && $$ SYNOPSIS...FK/TRM/SL NEAR TERM...FK/TRM SHORT TERM...SL LONG TERM...SL AVIATION...TRM