Couple quick thoughts on ProbSevere improvement – based on threats:
Wind:
T/TD depressions
Subcloud/Low Level RH
0-3KM Shear
DCAPE
Vertically integrated “core dump” e.g. track descending Z core
Hail:
Areal extent of negative ZDR cores on 0.5 degrees (difficult)
H7-H5 Lapse Rates
CAPE in Hail Growth Zone
500MB Temps
Tornadoes:
0-1km Bulk Shear
0-1 SRH
MLLCL
Fowle
