National Weather Service United States Department of Commerce

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

LFC =  898mb                  MGM / 04/03/74 /  12Z                     V(2/98)
                          OBSERVED SOUNDING PARAMETERS

  +--------------------------CONVECTIVE POTENTIAL----------------------------+
        B+............. -999 J/Kg                  K-Index............  18     
        B-............. -999 J/Kg                  Precip Water.......  1.30 in
        LI.............   -7                       Showalter Index.... -4      
        Cap Strength...    2.5 C                  Total Totals.......  54    
        LPL..(PMAX)....     0 ft/1001 mb           Sweat Index........  495    
                                                                            
        Tropopause......... -999 ft.               700-500mb LR...  8.9 C/km  
        Equilibrium Level..   -999 ft.             TEI(1001- 740). 28.4 C     
        Max Parcel Level...   -999 ft.             BRN............ -999        
        Wet-Bulb Zero......   8200 ft.             BRN Shear......  139 (M/S)
  +---------------------------WIND / STORM TYPE------------------------------+
        Cloud Lyr Mn Wind.. 240/ 58 kts     0-2km SR MoFlux...... 219 g/kg/hr  
        Mean Wind (0-6Km).. 224/ 40 kts     Pos Shear   (0-2Km).. 11 (10-3 S-1)
        Storm Motion....... 240/ 44 kts     SR Dir Shr  (0-3km)..  80        
                                                                           
        Energy/Helicity Index...-99.00      SR Helicity (0-3Km).. 302 (M/S)
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LFC =  759mb                  MGM / 04/04/74 / 00Z                      V(2/98)
                          OBSERVED SOUNDING PARAMETERS

  +--------------------------CONVECTIVE POTENTIAL----------------------------+
  �   B+............. -999 J/Kg                  K-Index............  33     �
  �   B-............. -999 J/Kg                  Precip Water.......  1.62 in�
  �   LI.............   -8                       Showalter Index.... -3      �
  �   Cap Strength...    1.4 �C                  Total Totals.......  54     �
  �   LPL..(PMAX)....  1489 ft/ 950 mb           Sweat Index........  460    �
  �                                                                          �
  �   Tropopause......... -999 ft.               700-500mb LR...  8.0 �C/km  �
  �   Equilibrium Level..   -999 ft.             TEI( 760- 560). 14.9 �C     �
  �   Max Parcel Level...   -999 ft.             BRN............ -999        �
  �   Wet-Bulb Zero......  11200 ft.             BRN Shear......   74 (M/S)� �
  +---------------------------WIND / STORM TYPE------------------------------�
  �   Cloud Lyr Mn Wind.. 238/ 53 kts     0-2km SR MoFlux...... 217 g/kg/hr  �
  �   Mean Wind (0-6Km).. 218/ 42 kts     Pos Shear   (0-2Km).. 8 (10-3 S-1) �
  �   Storm Motion....... 238/ 40 kts     SR Dir Shr  (0-3km)..  83�         �
  �                                                                          �
  �   Energy/Helicity Index...-99.00      SR Helicity (0-3Km).. 194 (M/S)�   �
  �--------------------------------------------------------------------------�
  �   (F1)-Print               (F3)-Skew T                (F5)-Next Screen   �
  �   (F2)-Main Menu           (F4)-Hodograph             (F7)-Help          �
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