The SWEAT index assess low level moisture, convective environment (via TT), and changes in wind speed and direction with height (low level and middle level jet, horizontal vorticity). When all these factors occur together, the severe weather threat and tornado threat is enhanced.
| +250 |
Potential for strong convection |
| +300 |
Threshold for severe thunderstorms |
| +400 |
Threshold for tornadoes |