fxus64 kmrx 231930 

Area forecast discussion 
National Weather Service Morristown Tennessee 
330 PM EDT Fri Jun 23 2017 

Short term (this afternoon through saturday)... 
the circulation around the remnants of Cindy is producing very 
favorable hodographs/shear for rotating updrafts. Main limitation 
is instability. Mixing has lowered dewpoints some across the 
region into the middle 60s to near 70, which is still quite high. 

As mid-level dry slot continues to move into the region this 
afternoon instability will increase with MLCAPE increasing to 
400-800 j/kg. Low Cape and high shear environment will be 
conducive to the potential of low topped supercells. 

Latest meso-analysis data shows 0-1km shear of 30-35 and 0-6km 
shear of 40-50, so very high shear values stp values of 4-5 near 
Huntsville with 1-2 across the plateau and southeast Tennessee. 
Besides the shear, strong low-level jet of 50-60kts later today 
will increase the potential of damaging winds due to Bow radar 

Tornado Watch has been issued for the western half of the area 
through 01z. 

Circulation/low pressure will move east of the area late this 
evening/early morning. Next feature of interest will be frontal 
boundary that is moving across the Ohio Valley. This boundary will 
move across the area Saturday. Airmass along and ahead of the 
front will be unstable, so expected scattered/broken showers and 
thunderstorms, mainly during the morning Saturday. 

Dry air will pull into the region for Saturday afternoon with a 
return of sunshine. 

Long term...(saturday night through thursday)... 
front will be south east of our area along with the precipitation 
and moisture from Cindy as well. A surface high pressure and mid 
level zonal/weak trough will then set up over our area. The drier 
air out of the northwest will help keep the skies mostly sunny the 
end of the weekend and into work week. Temperatures will remain 
below normal and winds will be light during this time frame. The 
next round of weather will hold off until the end of the work week 
into next weekend. The surface high will eventually move off the 
East Coast and increased moisture will be allowed in from the Gulf 
of Mexico. Warmer temperatures will also be brought in and the 
combination of warm temperatures and increased moisture will lead 
to shower and thunderstorm activity over next weekend. This is 
still far enough away that the details are a bit fuzzy at this 
time for this next event. 


Preliminary point temps/pops... 
Chattanooga Airport, Tennessee 72 85 64 84 / 80 60 10 0 
Knoxville McGhee Tyson Airport, Tennessee 70 82 62 81 / 90 50 0 0 
Oak Ridge, Tennessee 71 84 62 82 / 90 40 0 0 
Tri Cities Airport, Tennessee 68 82 59 79 / 80 50 0 10 


Mrx watches/warnings/advisories... 
Tennessee...Wind Advisory until 1 am EDT Saturday for Blount Smoky Mountains- 
Cocke Smoky Mountains-Sevier Smoky Mountains. 

National Weather Service Glossary of Abbreviations
Back to forecast page
Non-Expanded Version (with abbreviations)

Units: English | Metric

Find the Weather for any City, State or Zipcode, or Country:

U.S. State List | Severe Weather | Tropical Storms | Ski Conditions
United States | Canada | Central America | South America | Asia | Europe | Australia | Africa | Islands

Weather Underground

© Copyright 2017
The Weather Company, LLC