Chicago Storm

Few weak LE bands pushing inland across NE. IL currently. It's actually snowing here now because of them.

That's one big positive from the last ice event... With that event we had temps of mid to upper 30's being advected in from MI/IN, but this go around we have temps in the mid 20's to low 30's being advected in. Additionally, we are going into this event colder days prior, unlike last time where there was that brief mild period prior.

Can't wait to see negative nancy Cyclone roll in with another 6"+ event when it ends.

The 12z RGEM following the NAM, and coming in SE. .

Likely would be WSW’s, given a mix of p-types. .

0.6" at ORD and here, from the snow with the lead wave on Sunday.

By the way, the RAP and HRRR continue to trend south each run, and are going to be horrendous in their extended ranges as they have been with several recent systems. .

Low balling your area like usual. .

Right now I’m thinking 1-6” snow/sleet spread across the area, lower towards I-80 and highest near IL/WI border. Then probably an axis of 0.10-0.25” ice accrual across the heart of the LOT CWA as well. .

Sunday looking like a minor snow event, 0.5-2.5" area wide.

Another ice threat for some areas tonight. Might be a decent NNE/SSW axis that runs up around DBQ as well.

THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A * FLASH FLOOD WARNING FOR... WEST CENTRAL WILL COUNTY IN NORTHEASTERN ILLINOIS... NORTHEASTERN GRUNDY COUNTY IN NORTHEASTERN ILLINOIS... * UNTIL 1245 PM CST * AT 942 AM CST, EMERGENCY MANAGEMENT OFFICIALS REPORTED FLASH FLOODING OCCURRING DUE TO RAPID BREAK-UP OF AN ICE JAM ON THE KANKAKEE RIVER. EVACUATIONS ARE CURRENTLY UNDERWAY AND MULTIPLE ROADWAYS ARE FLOODED. * SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... LOW-LYING AREAS ALONG THE KANKAKEE RIVER NEAR CHANNAHON, MINOOKA, COAL CITY AND DIAMOND. THIS WARNING INCLUDES... CHANNAHON STATE PARK. .

Still raining, but not freezing anymore with a temp up to 34 now. Backside of precip area will be moving in shortly. Gonna finish with close to 0.15" ice accrual.

0.30" official ice total for DVN.

+TSFZRA here.

It's like a tropical downpour right now, and still only 31. Rain is way too heavy to have much, if any, accum though. With heavy rates like this you need temps in the mid-20's or lower. So looks like QPF amounts will work out, but ice accrual amounts will under-perform due to high rates in a more marginal temp environment.

Solid FZRA right now, sitting at 29.

Widespread thunderstorms from the Quad Cities down into W. Illinois.

Pea size hail report in QC area.

You should do well up there with the ice. Temps still in the upper 20's there currently, and might not go above 32 the whole event.

Yea, we're definitely in disagreement lol.

Suburbs to me go out to DKB-Morris-IKK. Those areas on in to the main metro are out of the equation for decent icing.

There's no way they would downgrade at this point...but it's pretty clear a significant ice threat is not happening in the metro, or even the suburbs at this point. I-39 area on towards the QC has the best chance for highest amounts.

Decent amount of TS in SE. Iowa right now.

ARR 35 and JOT 36. This one might be over before it starts for some areas under headlines.