397 FXUS61 KRLX 140542 AFDRLXAREA FORECAST DISCUSSION National Weather Service Charleston WV 142 AM EDT Sun Sep 14 2025
.SYNOPSIS... Redundant dry and unseasonably warm pattern continues until at least mid week. Chances for precipitation return for some late Tuesday. Elevated risk for wildfire start continues.
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.NEAR TERM /THROUGH TONIGHT/... As of 140 AM Sunday...
Seeing some high-level cloud cover moving over the forecast area with a disturbance posturing to our west. This front will slowly migrate towards the area later this morning into the afternoon. Radar shows some slight returns appearing over the area with some moisture aloft. A spot of drizzle or two is possible, but surface high pressure and drier air remains too stubborn to allow the majority of it to reach the surface and will evaporate. That said, fog formation will be tentative with the cloud cover and light winds. Spots across the northeastern mountains with no dew point depression have higher chances for seeing fog form. If skies clear out later this morning then more fog development will be on the table.
Otherwise, the forecast for today remains unchanged. Skies will be mostly clear, but fleeting mid to high level clouds are possible during the day with the front nearby. High temperatures will be very warm to hot with the lowlands reaching the upper 80s, with some locations flirting with 90 degrees. The mountains will stay in the 70s to the lower 80s. These temperatures are unseasonably warm for this time of the year.
Partial fire weather risks linger with relative humidity percentages dropping into the upper 20s and 30s once again this afternoon. Winds will be light enough to allow for decrease in spread should one spawn and thus mitigates the need for headlines. RH values will recover tonight with lows dropping into the 50s and lower 60s. More abundant fog development will be more possible tonight into Monday morning with clearer skies in the forecast.
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.SHORT TERM /MONDAY THROUGH TUESDAY NIGHT/... As of 145 PM Saturday ...
An upper level ridge will build over the region for the remainder of the weekend into early next week. This will continue the stretch of dry weather with mostly clear skies and unseasonably warm temperatures. Highs on Sunday and Monday will be about 10 degrees above normal for mid-September, reaching the upper 80s, with some locations in the Metro Valley possibly touching 90 degrees.
The elevated risk for wildfire starts will continue each afternoon, as minimum humidity percentages drop into the upper 20s to lower 30s. Light winds should again limit the risk for fire spread. Overnight lows will be mild, dropping into the upper 50s and lower 60s, with areas of valley fog redeveloping each night. By Tuesday, the ridge begins to flatten, marking the start of a pattern change.
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.LONG TERM /WEDNESDAY THROUGH SATURDAY/... As of 145 PM Saturday...
The upper ridge that brings the warm and dry conditions early in the week will begin to deamplify and shift eastward by midweek. At the same time, troughing is forecast to develop along the southeast coast. This will promote a more onshore flow, gradually increasing moisture across the forecast area, especially along the higher terrain. This may bring a return of precipitation chances, initially confined to the higher terrain of the mountains on Wednesday.
There is still some uncertainty in model guidance regarding the evolution of this area of low pressure, which will impact how much moisture ultimately makes it into the lower elevations and resultant precipitation chances. For now will defer to drier central guidance solution, but there is some hope in at least some model families for some modest relief from the dry conditions.
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.AVIATION /06Z SUNDAY THROUGH THURSDAY/... As of 110 AM Sunday...
VFR conditions remain in place for now. Fog development is possible, but confidence is not high on exactly where. EKN has the greatest chance for fog this morning given their current lack of dew point depression. If skies clear out then more fog development will occur. A shortwave disturbance to our west will eventually approach our area this morning. As a result, high-level cloud cover will be moving through at times this morning, which will likely disrupt fog formation for some areas. Isolated spots of drizzle are possible.
VFR is expected tomorrow with some mid-level cloud cover at at times with the front nearby. Winds will be light and variable through the period.
FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 06Z MONDAY...
FORECAST CONFIDENCE: Medium.
ALTERNATE SCENARIOS: Except for KEKN, fog formation is not certain this 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 SUN 09/14/25 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 L M M M M M 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 L M M M M M M L H H PKB CONSISTENCY H H H M M M M M M M H H CKB CONSISTENCY H H L L M M M M L H H H
AFTER 06Z MONDAY... IFR conditions are possible in valley fog each morning through at least early next week.
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.FIRE WEATHER... As of 145 PM Saturday...
Dry and unseasonably warm conditions will lead to an elevated risk for fire ignition into early next week. Minimum relative humidity values across the lowlands will generally be in the upper 20s to lower 30s, but overnight recoveries should remain good. Winds will remain light, generally below 10 mph, which will limit the threat of fire spread.
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.RLX WATCHES/WARNINGS/ADVISORIES... WV...None. OH...None. KY...None. VA...None.
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SYNOPSIS...LTC NEAR TERM...LTC SHORT TERM...JP LONG TERM...JP AVIATION...LTC
FIRE WEATHER...JP
NWS RLX Office Area Forecast Discussion