042318 Forecast

Mountain Area Headlines ( April 23-25 )

ALERT For Strong SE-SSE Winds Monday Into Tuesday Morning – Especially At Upper Elevations And Within Mountain Wave Zones Lee Of The High Knob Massif, Pine Mountain & Clinch Mountain

Strong SE-SSE winds are expected to continue and increase in strength through the remainder of the overnight into the daylight hours of Monday.  Strongest winds are expected at upper elevations and within mountain wave zones such as the Clinch River Valley of Tazewell-Russell counties, Powell Valley in Wise County, and locations along & just lee of the Pine Mountain ridge near the Virginia-Kentucky stateline.

A wet pattern features the heaviest rain amounts along the eastern slopes of the Blue Ridge, and locally within upslope locations of the High Knob Massif-Cumberland Mountains.

850 MB Streamline Flow

Although Monday will feature a chance of thunderstorms, the better chance arises on Tuesday with locally heavy rain amounts expected.

Storm Prediction Center Thunderstorm Outlook – 8 AM Tuesday to 8 AM Wednesday

A cooler than average temperature pattern will continue this week, but signs for a shift to above average temps is now increasing as the month of May arrives.

Maples Budding In High Knob Lake Basin on April 21, 2018

Reference Explosive Spring Rebirth Period Delayed

Early spring conditions in the high country remain on display in wake of a cold April 1-21 period.

Observed April Temperatures In High Country of High Knob Massif
Numerous days with temperatures dropping into the 10s to lower 20s have been recorded, including up to 9.0 inches of snowfall at the highest elevations during the month.