Thunderstorm Power Index (TPI)
Using Real Numeric Inputs
CAPE (J/kg)
e.g., 0–6000+ typical range
Wind Shear (knots)
0–80+ typical range
Lightning (flashes/min)
0–60+ typical range
Mid-level RH (%)
Used for "Dryness" factor
Surface RH (%)
Used for "Humidity" factor
Calculate TPI