August 2: Very Strong Storms Expected in N. Illinois

Supercell Composite. Higher values are dangerous.

MUCAPE. Higher values above 2000 are extremely dangerous.

Derecho Composite. Higher numbers indicate higher likelihood of a derecho.

EHI- spinning and energy in the atmosphere. High values are dangerous.

Lifted Index. Lower values are more unstable.

All of the above parameters are severe weather parameters. As we can see, South WI into Illinois are very dangerous atmosphere conditions.
Out in west IL, we see the storms are beginning to develop.
We will keep you up to date on all of this information.