Mountain Area Forecast ( Nov 4-6 )
ALERT For Strong ( ROARING ) SW Winds At Mid-Upper Elevations Into Monday Morning In Advance Of A Line Of Showers-Thunderstorms. Caution Is Advised.
Strong SW winds will continue to blow into the overnight ahead of an approaching line of showers-thunderstorms. Expect wind gusts of 30-40+ mph to continue, and to also mix downward into some SW flow wave zones across the northern portions of Wise and Dickenson counties.
An outbreak of severe thunderstorms is looking likely by later this weekend over the Ohio Valley, with potential for one or more bowing squall lines. The eastward progress of this will need to be watched as it approaches the western side of the Appalachians by Monday.
ALERT For Areas Of Local To Widespread Dense Fog Into Saturday Morning
Overnight Into Saturday Morning
Cloudy. A chance of rain showers, especially by morning. Low clouds with dense fog at upper elevations, and local to widespread at other elevations. Light winds. Temperatures widespread in the 50s.
Saturday Morning Into The Afternoon
Cloudy. A chance of rain showers, especially along and southeast of the Tennessee Valley Divide and High Knob high country. Breaks in the overcast possible by mid-late afternoon, especially north of the high terrain. SSE-SSW winds 5-15 mph, with higher gusts, on mid-upper elevation mountain ridges & plateaus. Temperatures varying from 50s in upper elevations to the middle-upper 60s ( warmest at lower elevations in the Russell Fork-Levisa Fork basins ).
Saturday Night Into Sunday Morning
Partly-mostly cloudy in the evening, becoming cloudy overnight into the morning with a chance of drizzle or showers. SSE-SSW winds 5-15 mph, with higher gusts, on mountain ridges below 2700 feet. S-SW winds 10-20 mph, with higher gusts, on mountain ridges above 2700 feet. Mild for the season with temperatures mostly in the 50s. Area of dense fog possible, especially at high elevations along the High Knob Massif-Tennessee Valley Divide.
Sunday Afternoon Updated
Partly-mostly cloudy. Unseasonably warm & gusty. S-SW winds 10-20 mph, with higher gusts. Temperatures from the 50s to low 60s at upper elevations to the upper 60s to low 70s ( warmest at lower elevations in the Russell & Levisa Fork basins, as well as to the south into the Great Valley ).
Sunday Night Into Monday Morning
Partly-mostly cloudy & windy. A chance of showers and thunderstorms, especially overnight into Monday. Winds S-SSW 10-20 mph, with higher gusts, along mountain ridges-plateaus below 2700 feet. Winds SW at 15-25 mph, with higher gusts, on mountain ridges above 2700 feet.
Transition into a colder weather pattern is expected next week, with temperatures trending back toward near to below average.
Weather Discussion ( Moist-Mild )
Sunday Evening Updated Discussion
Strong SW winds are roaring over mountain ridges-exposed plateaus in the Cumberland Mountains this evening and will continue into the overnight as a line of showers and thunderstorms approaches the Appalachians.
Caution is advised to be extra careful of breaking limbs or trees, especially in the mid-upper elevations, but also at some lower sites in climatologically favored zones where mountain waves on SW winds break downward, such as within the Pound-Clintwood corridor and locations lying downstream of the High Knob Massif – Black Mountains.