2. Parameters

Stability Assessment » SWEAT Index Skew-T Procedure

From the Skew-T, determine the following values:

The SWEAT index is computed as follows:

           SWEAT= 12(850Td) + 20(TT - 49) + 2(V850) + (V500) + 125(sin(dd500 - dd850) + 0.2)

Note the following rules:

  1. If TT is less than 49, then that term of the equation is set to zero.
  2. If any term is negative, then that term is set to zero.
  3. Winds must be veering with height or that term is set to zero.