Mountain Area Forecast ( Sep 14-16 )
Low clouds & widespread dense fog will dominate upper elevations of the High Knob Massif-Black Mountain area into Thursday. Areas of dense fog will also be possible in middle elevation gaps, such as Little Stone Mountain Gap along U.S. 23 between the City of Norton & Big Stone Gap.
Overnight Into Thursday Morning
Low clouds with occasional showers. Dense fog widespread at upper elevations and locally in middle elevations along and southwest of the High Knob Massif-Tennessee Valley Divide ( e.g., near Powell Valley Overlook ). SW winds 6-18 mph, with gusts 20 to 30 mph, along mid-upper elevation mountain ridges & plateaus. Temperatures varying from upper 40s to the upper 50s ( coolest at highest elevations where wind chills will be 40-45 degrees in gusts ).
Cloudy. A chance of showers. Dense fog ( low clouds ) at upper elevations. SSW-WSW winds 5-15 mph, with some higher gusts on mountain ridges. Temperatures varying from mid-upper 50s to mid-upper 60s ( coolest within the highest elevations ).
Thursday Night Into Friday Morning
Mostly cloudy. A chance of showers. Low clouds continuing at high elevations. Winds becoming light & variable. Temps varying from upper 40s to lower 50s in upper elevations to the mid 50s to around 60 degrees. Areas of dense fog.
Becoming partly sunny. Pleasant. Light winds. Temps varying from low-mid 60s in upper elevations to the lower to middle 70s.
Friday Night Into Saturday Morning
Mostly clear. Light winds. Large vertical temp spread developing between mountain ridges & valleys. Temps varying from low-mid 40s in colder mountain valleys to upper 50s to lower 60s on exposed ridges. Areas of dense valley fog ( especially in lower elevations ).