Surface temp, dewpoint, and MSLP
500 mb / vorticity advection
Mid level lapse rate
Low level lapse rate
0-6 km shear
Mixed layer (100 mb) CAPE and CIN
0-1 km shear
0-1 km SRH
Hail Parameters: -10 to -30C CAPE
Greater CAPE in this layer indicates a "fat" CAPE and potentially vigorous updrafts.
Supercell Composite Parameter
Depends on MUCAPE, SRH, and shear. Higher values favor right-moving supercells.
Vorticity Generation Parameter
Values greater than 0.2 m/s**2 suggest an increasing possibility of tornadic storms.
Energy Helicity Index
0-1-km EHI values greater than 1-2 have been associated with significant tornadoes in supercells.
Surface-2km SR Wind
0-3 km lapse rate and 0-3 km CAPE
Significant tornadoes are more favorable with low LCLs, below 1 km.
Bulk Richardson Number
Incorporates MLCAPE and vertical shear. Values of 10-45 have been associated with supercells in simulations.
Surface theta-e advection
Significant Tornado Parameter
A majority of sig tornadoes (F2 or greater) have been associated with STP values greater than 1.
Large DCAPE = stronger downdrafts.