SWEAT

Casinos who are upset by players winning or having skill are said to "sweat" out their games. Also, a player who is losing and is worried.

S evere W eather Thr EAT index; a stability index developed by the Air Force which incorporates instability, wind shear, and wind speeds as follows:

SWEAT=(12 Td 850 ) + (20 [TT-49]) +( 2 f 850) + f 500 + (125 [s+0.2]) where

• Td 850 is the dew point temperature at 850 mb,
• TT is the total-totals index,
• f 850 is the 850-mb wind speed (in knots),
• f 500 is the 500-mb wind speed (in knots), and
• s is the sine of the angle between the wind directions at 500 mb and 850 mb (thus representing the directional shear in this layer).

SWEAT values of about 250-300 or more indicate a greater potential for severe weather, but as with all stability indices, there are no magic numbers.

The SWEAT index has the advantage (and disadvantage) of using only mandatory-level data (i.e., 500 mb and 850 mb), but has fallen into relative disuse with the advent of more detailed upper air sounding analysis programs.