April 30 map

High wind shear danger on Friday

High wind shear over Friday will be a big threat for tornadoes. Wind shear is what makes clouds turn and rotate. Be careful with the weather.

Picture gallery for Friday April 30

This picture is noon on Friday. Here, the cold front will induce severe thunderstorms with the humid and unstable air.




This is a midnight Friday picture. The warm front has pulled through, and the cold front will create dangerous severe storms.

Update on severe weather threat.

Here are the possibilities and/or likelihoods of severe weather risks:

rain: Likely
thunderstorms: Likely
Supercells: LIKELY, MONITOR FOR DANGER
Bow-echo storm cluster: LIKELY, MONITOR FOR DANGER
Flooding: Possible
Tornadoes: POSSIBLE, LOOK FOR HIGH WINDS
Hail: Possible

Notice

In the case of a severe weather event, I will be issuing warnings and watches for the Midwest areas this Friday. Stay tuned.

Another Friday Map

These are risks for severe weather categories.

Friday's probability for severe weather

You can see the hatched area (llight blue) is in the Chicagoland/Iowa area. It appears the SPC is declaring organized severe thunderstorms such as squall lines are LIKELY for Friday.