Thursday, June 11, 2009

Thursday/Mid Afternoon

Get ready for another rocky afternoon and evening, as more showers and thunderstorms are developing to our west in Southern Illinois. They are beginning to gain strength and coverage, and it's a good bet one or two will go severe. Whether or not the SPC will issue a WATCH at this time, is pretty sketchy. No Mesoscale Discussions have been issued for the area...yet. However, I do expect that to change if storms begin to increase in strength and coverage, which they are currently doing. We still have a very unstable airmass and the sun has been out for about 1 hour now so the atmosphere will continue to destabilize.

Dew points are in the 70's and CAPE values up to about 1,500 now...

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