Good afternoon gang. The SPC is watching parts of western and central Kentucky into Tennessee for a possible TORNADO WATCH. Here is their map and discussion…

MD 318 graphic
AREAS AFFECTED…PORTIONS OF THE LOWER OH AND TN RIVER VALLEYS
  
   CONCERNING…SEVERE POTENTIAL…TORNADO WATCH LIKELY
  
   VALID 281758Z – 281930Z
  
   SCATTERED TSTMS SHOULD DEVELOP BY 20-21Z ALONG A COLD FRONT
   PROGRESSING EWD ACROSS THE LOWER OH AND TN RIVER VALLEYS. VERY
   STRONG DEEP-LAYER SHEAR AMIDST MODEST SURFACE-BASED INSTABILITY WILL
   RESULT IN SUPERCELLS PRODUCING TORNADOES…LARGE HAIL…AND DAMAGING
   WINDS. A TORNADO WATCH WILL LIKELY BE ISSUED PRIOR TO 19-20Z.
  
   17Z SURFACE ANALYSIS PLACED A 993 MB LOW NEAR SGF WITH AN ARCING
   COLD FRONT FROM CGI TO TUP. BREAKS IN LOW-LEVEL STRATOCUMULUS AND
   PRESENCE OF MID-LEVEL DRY SLOT HAS ALLOWED SURFACE TEMPERATURES TO
   WARM TO AROUND 70 F ALONG AND AHEAD OF THE BOUNDARY…WHILE DEW
   POINTS HAVE RISEN TO AROUND 60 F GIVEN DOWNWARD MIXING/ADVECTION.
   WITH CONTINUED INSOLATION…MODIFIED RUC FORECAST SOUNDINGS SUGGEST
   MLCAPES OF 600 TO 1200 J/KG WILL BE COMMON.
  
   AS THE CYCLONE OVER THE OZARKS PIVOTS NEWD…LARGE-SCALE FORCED
   ASCENT WILL INCREASE AS AN INTENSE /90 KTS AT 500 MB/ S-SWLY
   MID-LEVEL JET OVERSPREADS THE REGION. TSTM INITIATION SHOULD OCCUR
   BY 21Z…WHICH IS SUPPORTED BY 00Z 4-KM WRF-NSSL AND 12Z GFS. WITH
   BACKED S/SELY LOW-LEVEL FLOW…DEEP-LAYER SHEAR WILL BE QUITE STRONG
   /AOA 60 KTS/ AND WILL PROMOTE SUPERCELL DEVELOPMENT. FAVORABLE
   LOW-LEVEL HODOGRAPHS WITH 0-1 KM SRH AOA 200 M2/S2 WILL SUPPORT
   POTENTIAL FOR TORNADOES. WHILE RELATIVELY STEEP MID-LAPSE RATES /AS
   SAMPLED UPSTREAM BY 12Z LZK RAOB/ AND THE VERY STRONG SHEAR WILL
   PROMOTE HAIL DEVELOPMENT AND LOCALLY DAMAGING WINDS.

I will have an update once the watch comes out. Take care.