>Severe Weather Situation #010

>This is Severe Weather Situation #010.
As of 6:41pm CDT on March 20, 2011… Strong storms were redeveloping in North Illinois.
Sunshine succeeding the afternoon storms appears to have warmed the previously cold environment to a point that storms had potential to occur.

A trained weather spotter has indicated cloud to ground lightning is occurring in that area.
Radar is also indicating that the storms may be strong in nature.

People in the counties ALONG THE WISCONSIN/ILLINOIS BORDERS are advised to keep an eye to the sky this evening.

Additionally… short range forecast composite reflectivity indicates showers and storms developing in central Illinois moving north while weakening.

Specific Concerns…
CAPE values ~1000 j/kg
Best Lifted Index ~ -4 degrees
Lapse Rates 6.5-8 degrees
Overall atmospheric instability: Moderately Unstable.

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