Warm front is on the move now, but not southward. It is moving back northward, especially in Illinois.
This is in response to deepening surface low & approach of upper trough & cold front.
We are now pushing 70 at Bloomington & Champaign, Illinois & Covington is back up to 65. I have 61 here at WLFI ob site & Monticello has 57.
Dew points are on the rise, too. Dew point at Covington is a humid 65 & dew point at the station is 60.
So, supercells along warm front & supercells developing ahead of main band or line of storms in Illinois will need to be monitored now to as late as 2 a.m.
In the short-term......
Supercells with flooding threat & large hail threat are training along warm front in our south.
We have already seen hail as large as 1.50" measured in Montgomery County from first supercell. Second one is now coming in with Severe T'Storm Warning until 5:30 p.m. Hail up to 1" in diameter is possible.
Flash Flood Warning is also up in Montgomery County as torrential rains occur over the same areas.
Tornado Watches are in yellow, Severe T'Storm Watches are in pink. Orange polygons are Severe T'Storm Warnings.
Now to 2 a.m. (risk of some severe gusts, couple to a few tornadoes, some hail & flooding rainfall):
High winds with gusts 40-55 mph come late today through Sunday following all of this with a few showers & lots of clouds with much colder temperatures in the 40s.