Mostly cloudy with a chance of showers and patchy drizzle. Seasonally cool with temperatures in the 60s to low 70s for locations along & north of the High Knob Massif-Tennessee Valley Divide ( warmer south toward the Tri-Cities ).
Friday Night Into Saturday Morning
Cloudy with a chance of scattered showers during the evening-early overnight. Becoming partly cloudy into morning. Winds shifting ENE-SE at 5-15 mph on middle-upper elevation mountain ridges and plateaus. Temperatures in the 50s to around 60 degrees.
Saturday Afternoon
Any clouds giving way to mostly sunny, blue skies. Pleasant conditions. ESE-SSE winds 5 to 10 mph, with higher gusts. Temperatures varying from upper 60s to lower 70s at the highest elevations into the upper 70s to lower 80s ( warmer toward the southwest and south of the High Knob Massif ).
Saturday Night Into Sunday Morning
Mostly clear. Winds SE-SSE 5-15 mph, with higher gusts, along mid-upper elevation mountain ridges. Temperatures varying from mid-upper 40s to the mid-upper 50s ( coolest within mountain valleys with calm winds ).
Sunday Afternoon
Mostly sunny ( some high clouds possible ). Light SE to S winds. Temperatures varying from the low 70s at highest elevations to the lower-middle 80s.
Sunday Night Into Monday Morning
Mostly clear. Winds becoming S-SW at 5-10 mph along mid to upper elevation mountain ridges. Temperatures varying from the 40s in cooler mountain valley to the 50s to near 60 across exposed ridges-plateaus.
Weather Discussion ( June 16-20 )
Beautiful mammatus clouds, forming on the bottom side of a large cumulonimbus anvil, were captured over western Lee County by photographer Harold L. Jerrell Thursday.
Mammatus Clouds Over Powell River Basin of Lee County – June 16, 2016
Rainfall with storms, as often is the case at this time of year, was not uniform with large variations across southwestern Virginia from nothing up to 1.00″ to 2.00″ .
Doppler Estimated Rainfall During Past 24-Hours Ending June 17, 2016
Locations from central-eastern Dickenson County into Buchanan County and portions of Russell, Tazewell, Washington, Smyth and Grayson counties endured the strongest thunderstorms with power outages still ongoing as of 4:58 PM on Friday ( June 17 ).
AEP Power Outages As of 4:58 PM on Friday – June 17, 2016
A mostly cloudy, cooler air mass has dominated Friday, especially along and north of the High Knob Massif-Tennessee Valley Divide.
High Knob Massif Webcam – University Of Virginia’s College At Wise
Some light showers and drizzle have occurred along with low cloud bases that occasionally obscure the highest ridges.
High Knob Massif Webcam – University Of Virginia’s College At Wise
Friday ( June 17 ) temperatures have been much cooler with afternoon readings only in the 60s to lower 70s in locations along and north of the High Knob Massif & Tennessee Valley Divide.
*The 4:45 PM temperature of 70.7 degrees in Clintwood being down from a PM MAX of 72.8 degrees. Air temps have hovered around 60 degrees at the summit level of the High Knob Massif during the afternoon.
Nora 4 SSE – NWS Station In The Middle Elevations ( Elevation 2650 feet )
The hottest air being suppressed to the south and west, with a major heat dome forming during the weekend into next week across southwestern-central portions of the USA.
European Model Surface-850 MB Analysis At 8 AM Friday – June 17, 2016
A pleasant Father’s Day weekend is on tap with beautiful skies ( low dewpoints ) and seasonally cool nights.
A renewed surge of heat-humidity in advance of another cold front will bring the chance for more strong-severe thunderstorms by the Tuesday-Wednesday period of next week ( June 21-22 ). Stay tuned for updates.
