405 FXUS61 KRLX 112223 AFDRLXAREA FORECAST DISCUSSION National Weather Service Charleston WV 623 PM EDT Thu Sep 11 2025
.SYNOPSIS... Surface high pressure will continue to dominate the pattern, leading to dry conditions and a gradual warming trend through the weekend and into early next week.
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.NEAR TERM /THROUGH FRIDAY/... As of 130 PM Thursday...
Key Message:
* Little to no chance for precipitation through at least early next week.
An upper level trough continues to slide east across the region, but with very dry air in place at the low and mid levels, weather will remain quiet. High pressure at the surface will support mostly clear skies and light northerly winds through Friday. Afternoon high temperatures will be near normal, ranging from the mid 70s to mid 80s in the lowlands. Afternoon relative humidity values will range from the upper 20s to mid 30s across a bulk of the region both days, supporting continuing drying conditions of the soil and fine, unsheltered fuels. Winds remaining light and generally good overnight RH recoveries will help to limit any more substantial wildfire risk.
Overnight, with clear skies and calm winds, we will see another night of effective radiational cooling, dropping into the mid 40s to 50s across the lower elevations. These conditions will also be favorable for the development of patchy valley fog, especially in the river valleys, which could be locally dense and reduce visibilities toward sunrise.
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.SHORT TERM /FRIDAY NIGHT THROUGH SUNDAY/... As of 130 PM Thursday...
Dry weather continues into the weekend as an upper level ridge begins to build in from the west. This will reinforce the surface high pressure already in place, leading to a stretch of tranquil weather. Temperatures will continue their warming trend, with highs on Saturday reaching the low to mid 80s in the lowlands and upper 70s in the mountains, a few degrees above normal for this time of year. Overnight lows will remain pleasant, primarily in the upper 40s to 50s.
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.LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/... As of 130 PM Thursday...
The upper level ridge is expected to remain the dominant feature through the long term, keeping conditions dry and temperatures above normal. Highs are forecast to be in the mid to upper 80s for much of the period. There is some signal that an area of low pressure could develop off Atlantic coast and try to drift in underneath the ridge by Tuesday/Wednesday. While confidence is low at this time, this feature would introduce enhanced moisture into our area by the middle of next week increasing precipitation chances. For now, given low confidence, the forecast reflects central guidance, which remains dry through the next 7 days.
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.AVIATION /00Z FRIDAY THROUGH TUESDAY/... As of 622 PM Thursday...
VFR conditions can be expected through the period, with the exception of some dense late night river valley fog.
FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 00Z SATURDAY...
FORECAST CONFIDENCE: High, medium with fog.
ALTERNATE SCENARIOS: Timing of fog forming and the airports affected 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 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 H H H H H H H H H H H L 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 H H H H H H H M M M PKB CONSISTENCY H H H H H H H H H H H H CKB CONSISTENCY H H H H H H H H H H H L
AFTER 00Z SATURDAY... IFR possible in early morning valley fog each morning.
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.RLX WATCHES/WARNINGS/ADVISORIES... WV...None. OH...None. KY...None. VA...None.
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SYNOPSIS...JP NEAR TERM...JP SHORT TERM...JP LONG TERM...JP AVIATION...RPY
NWS RLX Office Area Forecast Discussion