Effective Inflow Layer

Beginning at the ground and working upward, each data level in the sounding is lifted to calculate CAPE and CINH. Those lifted parcels with CAPE > 100 J/kg and CINH > -250 J/kg are considered to be part of the potential thunderstorm "inflow" layer. The sounding plot marks the top and bottom (in m AGL) of the first contiguous layer of parcels that satisfy the CAPE and CINH constraints. The storm-relative helicity value for the effective inflow layer is plotted also plotted, using the storm motion algorithm developed by Bunkers et al. (2000). Please see Thompson et al. (2007) for more information.