854 FXUS61 KRLX 230439 AFDRLXAREA FORECAST DISCUSSION National Weather Service Charleston WV 1239 AM EDT Tue Sep 23 2025
.SYNOPSIS... Showers and thunderstorms continue through the work week as multiple disturbances affect the area.
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.NEAR TERM /THROUGH TONIGHT/... As of 1010 PM Monday...
MCS has progressed across much of the CWA this evening, gradually weakening a bit as it has done so, but still with decent structure even as it enters the eastern portion of the CWA at this time. Wind gusts of 35-50+ mph have been observed as it has crossed the forecast area. Expect this trend to continue over the next hour or so as it exits the CWA, with the potential for isolated instances of wind damage remaining. Following this, an additional wave of ISOLD/SCT showers and a few storms moves in for the overnight amid warm overnight temperatures (low/mid 60s lowlands; upper 50s and low 60s mountains). Have significantly increased PoPs across the far north and east to better align with the movement of the MCS this evening. The rest of the forecast remains on track.
As of 520 PM Monday...
Isolated to scattered (garden variety) showers/storms have developed this afternoon across the CWA amid modest buoyancy and weak forcing. Further west, activity has blossomed significantly over the last hour or two in advance of a shortwave trough amid increased mid-level flow of ~35-45kts per KILN and KLVX VAD Wind Profiles. This activity should continue to progressively shift eastward, moving into the western portion of the CWA within the next hour or two. The primary threat continues to be strong to damaging wind gusts, along with heavy downpours. Given current translational velocity of ~35-45kts, wind gusts of 40-50 mph are currently common along this line, with localized gusts up to 60 mph or slightly higher given any bowing features / line surges. The current expectation is for this activity to hold together into at least the western portion of the CWA, and then gradually weaken further east given some remnant cold pools from earlier activity combined with loss of daytime heating. Given some turning with height, a brief spinup is not out of the question. Additionally, a highly localized high water issue or two remains possible given any training of storms. Have modified PoPs over the next few hours to represent the latest trends.
As of 125 PM Monday...
The near term period will continue to be active, with a moist southwesterly flow in place, and multiple waves traversing the region, helping to kick off rounds of showers and storms. Bulk of activity still looks to be in the afternoon and evening hours, and across SE OH, NE KY and the Mid-Ohio Valley region, however, models are indicating another wave crossing in the overnight Monday/early morning hours on Tuesday for another round of activity. Storms will contain brief heavy downpours as PW values surge well above seasonal norms. Isolated strong to severe storms will also be possible on Monday, with ample instability and shear on the order of 30-40 kts. Damaging winds will be the primary hazard with any convection on Monday. Tuesday will continue to be active across the area as additional shortwaves continue to traverse the area. An isolated strong to severe storm will also be possible on Tuesday, although chances look to be somewhat low at this point.
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.SHORT TERM /WEDNESDAY THROUGH FRIDAY NIGHT/... As of 1230 AM Tuesday...
An upper level low to our northwest will continue to push moisture and a frontal boundary into the area for Wednesday and Wednesday night. This will once again lead to numerous showers and thunderstorms. The front could act as a focusing mechanism for precipitation and with some areas already receiving rainfall and more expected today, there is some concern for flash flooding.
Models vary on where the cold front will stall Wednesday night into Thursday, but our region seems to be a prime target. The upper level low to our northwest will eventually evolve into a deep trough and start pushing eastward. This will push the cold front further eastward and east of our area Thursday or Thursday night.
The upper trough will push through the area on Friday, allowing for some showers behind the front.
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.LONG TERM /SATURDAY THROUGH MONDAY/... As of 1230 AM Tuesday...
Models show that as the upper trough pulls away from the region, it leaves behind a cut off low over the southeast United States. Models vary on how far south of us the low is, with the Canadian being furtherest north and possibly affecting southern portions of our region. Some other models also leave some moisture over our mountains, which could lead to some showers. This leads to a lower confidence in the forecast for the weekend, especially for the southern and eastern portions of the forecast area.
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.AVIATION /04Z TUESDAY THROUGH SATURDAY/... As of 850 PM Monday...
Showers and isolated thunderstorms continue to progress eastward across the CWA. A gust front on the leading edge of this activity is producing wind gusts of ~30-40kts, having just moved through CRW/PKB, but should continue to gradually weaken as it progresses further east. Outside of this, MVFR and brief IFR VSBY restrictions are possible within the rain. An additional round of SCT showers and ISOLD thunderstorms is possible later tonight, moving in from the west, and bringing the potential for additional brief MVFR VSBY restrictions. Otherwise, CIGs will gradually lower throughout the night, with MVFR/IFR across much of the area by dawn. A bit of patchy fog cannot be ruled out.
The chance for ISOLD/SCT showers/storms continues on Tuesday, particularly southeast of the Ohio River, with some brief MVFR VSBY restrictions possible. CIGs will gradually rise/scatter into VFR by late in the day for most of the forecast area.
Wind gusts of ~30-40kts remain possible over the next hour or two across the eastern CWA, potentially impacting CKB/EKN. Otherwise, light southerly flow is expected tonight, with light southwest flow on Tuesday, with occasional breezes of 15 or so kts at times.
FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 06Z WEDNESDAY...
FORECAST CONFIDENCE: Medium.
ALTERNATE SCENARIOS: Timing/intensity of restrictions from rain and stratus may vary from the forecast. CIGs at CKB/CRW/EKN could be slightly higher than currently anticipated late tonight into Tuesday morning.
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 TUE 09/23/25 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 H H M L L H H M M H HTS CONSISTENCY H H H H H H H M H H H H BKW CONSISTENCY H H H M L H H H M H M M EKN CONSISTENCY H H H L L L M L L L M H PKB CONSISTENCY M H H H M H H H H M H H CKB CONSISTENCY H M H M L H M M M M H M
AFTER 06Z WEDNESDAY... Brief periods of IFR conditions are possible with heavier showers or thunderstorms throughout the work week. IFR is also possible at night with low stratus and/or fog.
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.RLX WATCHES/WARNINGS/ADVISORIES... WV...None. OH...None. KY...None. VA...None.
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SYNOPSIS...RPY/SL/GW NEAR TERM...SL/GW SHORT TERM...RPY LONG TERM...RPY AVIATION...GW
NWS RLX Office Area Forecast Discussion