Chicago Storm

probably not. .

this feels like a spartman thread. a lot of useless maps. .

yes, you are.

RFD damage was virtually non-existent. Went from no damage to tornado damage very quickly.

gonna go 0-2 within the past few days. not your season. .

i thought there was a drought? .

LOT has the damage assessment tool up now. Red line is where I was when it hit.

should have gotten on the train while you all could. .

A few additional videos from today...

Alright... So, as I mentioned last night I took a hit from the Naperville/Woodridge/Darien tornado as it crossed I-355 in Woodridge. As the line of storms approached, I noticed that couplet was organizing. It was set to cross I-355 less than 10 minutes from where I live, and I knew I had just enough time to get there. So we jumped in the car and 8 minutes later we were hit. Driving south on 355 approaching, there were several power flashes off to the right side, even as we came to a stop. Then it rolled us, throwing debris at the car (Hard to see it a lot in the video due to rain). After the hit, I spent quite a while out in the damage path, on either side of 355. The damage path is a healthy width, but the significant damage was confined to about a 3 home width or so. Some of the most significant damage I’m guessing could be EF-3, thinking of some of the DI off the top of my head.

I’m alive. More later... .

Just got hit by a tornado on I-355 in Woodridge. .

They’re all rotating a lot just aloft. .

Nice bowing line segment about to push through the metro. A few smaller supercell like structures ahead of the line showing weak rotation at times as well. .

Re: SPC MD... Seems overzealous in the near term.

I didn’t even follow my advice. Got off work at 2, got home and haven’t left. 19z ILX sounding has a sizable cap, dry air aloft, among other things. Maybe the MCV will eventually do something in IN/OH, but IL is mostly done for. Attention then turns to the front in IA, but the issue there is the best threat will likely be confined to IA. Modified flow in off the backside of the first waves activity is feeding northwest, so the corridor of max potential out there is likely only in C IA. All in all, no bueno. .

Could have played both, that's my current plan. I'm off work from ORD at 2. Guessing by then somewhere in the Ottawa-Pontiac-Kankakee area might be in play with the MCV. Will chase around there for a while before hauling west to the IL/IA border. IKK to DVN can be done in 2hrs and 30mins, and with it light out till 9 now, it's doable.

The NAM has come in and reversed a bit of the bleeding that was happening on guidance last night. Would suggest a quality threat with the MCV from the Chicago metro into SW MI and N IN during the mid afternoon through early tonight. Then it has a sig environment in E IA and NW IL during the evening and into early tonight. The cloud cover and precip shield with the hurricane over IA this morning has been steadily fading, with a good deal of clearing already across MO and C/S IL. Everything seems to be on track for now.

90 ORD, 91 MDW, 93 RFD and 93 at ex home on today. 13 - RFD 13 - Ex home 9 - ORD 8 - MDW .

Could envision a moderate risk being needed if guidance up until this point remains consistent. .

MCV interacting with the warm front is easily better than just relying on the cold front. Guidance that has the MCV focused threat (Which is just about all guidance), does have a more back low level flow, in addition to a much stronger flow aloft (850/700/500). Soundings on guidance that have the MCV focused threat also look much better than those that do not. Additionally, the threat post MCV threat would still be quality, given you'd likely be dealing with a cold front and OFB intersection across E IA into N IL later.

It definitely has more potential with the MCV involved. .

90 ORD, 90 MDW, 94 RFD and 92 at ex home on Friday. 12 - RFD 12 - Ex home 8 - ORD 7 - MDW .

Sunday could be significant. Highly dependent on the evolution of an MCV tomorrow night in the Plains though. .

45-55MPH wind gusts at all metro area OBS sites, with the line of t’storms that moved through. .