Super Outbreak Sounding Data - BNA

The April 3rd and 4th 1974 Tornado Outbreak in Alabama - Nashville Soundings

LFC =  874mb                  BNA / 04/03/74 /  12Z                     V(2/98)
                          OBSERVED SOUNDING PARAMETERS

  +--------------------------CONVECTIVE POTENTIAL----------------------------+
        B+.............13978 J/Kg                  K-Index............  21     
        B-.............   47 J/Kg                  Precip Water.......  1.15 in
        LI.............   -8                       Showalter Index.... -7      
        Cap Strength...    2.9 C                  Total Totals.......  59     
        LPL..(PMAX)....  1132 ft/ 944 mb           Sweat Index........  488    
                                                                            
        Tropopause......... -999 ft.               700-500mb LR...  9.1 C/km  
        Equilibrium Level..  38900 ft.             TEI( 940- 620). 20.8 C     
        Max Parcel Level...   -999 ft.             BRN............  556       
        Wet-Bulb Zero......   8600 ft.             BRN Shear......   25 (M/S)
  +---------------------------WIND / STORM TYPE------------------------------+
        Cloud Lyr Mn Wind.. 232/ 29 kts     0-2km SR MoFlux...... 102 g/kg/hr  
        Mean Wind (0-6Km).. 214/ 24 kts     Pos Shear   (0-2Km).. 5 (10-3 S-1) 
        Storm Motion....... 232/ 22 kts     SR Dir Shr  (0-3km).. 122         
                                                                           
        Energy/Helicity Index...  5.42      SR Helicity (0-3Km).. 73 (M/S)   
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LFC =  750mb                  BNA / 04/04/74 / 00Z                      V(2/98)
                          OBSERVED SOUNDING PARAMETERS

  +--------------------------CONVECTIVE POTENTIAL----------------------------+
  ï¿½   B+............. -999 J/Kg                  K-Index............  38     ï¿½
  ï¿½   B-............. -999 J/Kg                  Precip Water.......  1.54 inï¿½
  ï¿½   LI.............   -8                       Showalter Index.... -5      ï¿½
  ï¿½   Cap Strength...    3.7 ï¿½C                  Total Totals.......  57     ï¿½
  ï¿½   LPL..(PMAX)....   502 ft/ 959 mb           Sweat Index........  532    ï¿½
  ï¿½                                                                          ï¿½
  ï¿½   Tropopause......... -999 ft.               700-500mb LR...  7.6 ï¿½C/km  ï¿½
  ï¿½   Equilibrium Level..   -999 ft.             TEI( 820- 700).  8.9 ï¿½C     ï¿½
  ï¿½   Max Parcel Level...   -999 ft.             BRN............ -999        ï¿½
  ï¿½   Wet-Bulb Zero......  12100 ft.             BRN Shear......  206 (M/S)ï¿½ ï¿½
  +---------------------------WIND / STORM TYPE------------------------------ï¿½
  ï¿½   Cloud Lyr Mn Wind.. 234/ 76 kts     0-2km SR MoFlux...... 243 g/kg/hr  ï¿½
  ï¿½   Mean Wind (0-6Km).. 228/ 50 kts     Pos Shear   (0-2Km).. 11 (10-3 S-1)ï¿½
  ï¿½   Storm Motion....... 234/ 57 kts     SR Dir Shr  (0-3km).. 127ï¿½         ï¿½
  ï¿½                                                                          ï¿½
  ï¿½   Energy/Helicity Index...-99.00      SR Helicity (0-3Km).. 114 (M/S)ï¿½   ï¿½
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