Severe Weather

Surface Obs/Initiation
Sfc Thermo/Shear
Elevated
Supercell
Non-Supercell
Tornado
Hail
Wind
Heavy Rain
Surface Obs/Initiation
MSLP
Sfc Obs
SFC Dewpoint
3hr MSLP Change
Visible Satellite
3hr Temp Change
Moisture Convergence
SFC Theta-E Advection
SFC Theta-E Advection
Deep Moist Convergence
Sfc FGen
1000-925 FGen

Surface Based Thermo/Shear
SB CAPE
ML CAPE
0-6 km Shear
3hr SB CAPE Change
3hr ML CAPE Change
Effective Shear
Low Level Lapse Rates
Mid Level Lapse Rates
Max LR (in 2-6km layer)
Storm Motion (850-300mb Mean Wind)
SB LI
EL Temp / MUCAPE / MUCIN
Lightning more likely with MUCAPE > 100
and EL Temp < -20
LCL-LFC Mean RH
>40% Favorable for avoiding
Dry Air Entrainment

Elevated Convection
MU CAPE
850 MB
Low Level Jet
MU LI

Supercell
Supercell Composite (> 1)
Supercell Composite (Left-Moving)
BRN Shear (> 35-40)
Craven/Brooks Sig Severe(>20K)
0-3km SRH (>250 m2/s2)
Sfc-2km Storm Rel Winds (>15-20kts)
Anvil Level (9-11km) Winds
<40kts - "High Precip" Supercells
40-60kts - "Classic" Supercells
>60kts "Low Precip" Supercells

Non-Supercell Tornado/Landspout
NST Parameter
SFC Vort/0-3 km CAPE
Low Level Lapse Rates

Tornado Ingredients
0-1 km Shear
LL Mesocyclone (>20 kts)
0-1 SRH
Updraft Rotation (>150 m2/s2)
0-3 km Lapse Rate and ML CAPE
LL Parcel Acceleration (>100 J/Kg)
LCL Height
RFD Bouyancy (<1000 m)
0-3 km Vorticity Generation Parameter
Tilting/Stretching of H. Vort. (>0.2 m2/s2)
Sig Tor. Parameter
Supercell Tors (>1)
EHI (Sfc-1km)
EF-2+ Tor have occurred with > 1-2
0-2 km Storm Relative Winds
Baroclinc H. Vort. Generation
Violent Tor Parm (VTP)
CWASP
EF-2+ Tor have occurred with >70
Critical Angle
Angle near 90deg infer streamwise vort.
near ground
Enhanced Stretching Potential
Anvil Level Storm Relative Winds
Baroclinic H. Vort. Generation
Cond. Prob SigTor (Eq1)
Cond. Prob SigTor (Eq1)
Cond. EF0+ Prob. RM Supercell (Eff STP)
Cond. EF2+ Prob. RM Supercell (Eff STP)
Cond. EF4+ Prob. RM Supercell (Eff STP)
QLCS Tor (MUCAPE)
QLCS Tor (MLCAPE)
QLCS Tor - 0-3KM Bulk Shear
(>=30kts Line Normal)
SHERBE - Low CAPE / High Shear
Values over 1 favorable
Modified SHERBE

Hail Ingredients
Hail CAPE
-10-30 C Layer (>500 J/Kg)
Significant Hail Parameter
Greater Than 2 Inch Hail (SHP>2)
Normalized CAPE
Parcel Accel. ( > 0.3 = Fat CAPE Profile)
SARS Hail Size
"Best Guess"
SARS Sig. Hail Percentage
Color Fill: % of Analog with 2+" hail;
Contour: # of Matching Cases (100 Common)
Large Hail Parameter (LHP)
Hail < 1.25": Values <4
Hail >2": Values > 5
Hail >3.5": Values > 7

Damaging Wind Ingredients
Downdraft CAPE 
Downdraft Strength (>700 J/Kg)
Derecho Composite
Low Level Lapse Rate
MCS Maintenance
Microburst Composite
Slight (3-4), Chance (5-8), Likely (>=9)

Heavy Rain Ingredients
PWAT
925 mb Moisture Transport
850 mb Moisture Transport
PWAT + 850 mb Moisture Transport
Corfidi Vectors
Backbuilding/Regeneration (<15 kts)
Precip. Potential Placement
PWAT/RH/Moisture Convergence