2013-06-12 MISC: IA/IL/IN/OH

[Brian]

I was out yesterday, really wish I would have stuck with my initial target of near Joliet Illinois, but I really think that although the models indicated a potentially high risk day, that the actual conditions did not support it. I think that if the cloud cover would have broke up earlier in the day and led to more daytime heating the situation could have warranted a high risk. caught some large hail very heavy rain and wind gusts roughly 45-50 mph in Mchenry county but didn't see any tornadoes. supposedly around Joliet and the Aurora/Oswego areas there was a brief tornado and also heard of a confirmed tornado in paw paw. the paw paw report I got from abc 7 news and the Joliet/aurora/Oswego reports I got from a friend chasing in those areas.

 

[Jason Harris]

One thing I'm curious about is why is it potent cells fired up to the SE in Ohio, the Marion allegedly-tornado-producing cell in particular. In fact, how did that area get a tornado watch so far from the main front of IA/IL while western OH was stranded in mere t-storm watch? As I was driving west, thinking that I'd have a better chance of access to what should be perking in IN, I noticed initiation happening behind me, so turned around, ha. (This was in the late afternoon, long before the bowing night event).

 

[Jason Harris]

Don't think this quite qualifies as a report, but here are some pictures showing some of the stages of one storm that I saw develop as it went to the East. Later on it had some rotation indicated on GR3 but I was too far behind. If I'm not mistaken, you can see the updraft base in the one zoomed in pic, with the fluffy look to it. The very last pic shows what should be the storm that reportedly produced a tornado near Marion, OH.

 

[Jason Harris]

One EF-0 tornado so far indicated from damage pattern from the overnight event in OH:
http://www.daytondailynews.com/news/news/local/winds-in-auglaize-county-classifed-as-tornado/nYKpt/

Don't think they've fully assessed near Marion yet. But here's news pic on Caledonia, OH which must be the same storm, just was referred to as Marion earlier due to Marion being larger town:

http://www.marionstar.com/apps/pbcs...NEWS01&Lopenr=306130801&Ref=PH&nclick_check=1

 

[Jason Harris]

One more update. This confirms the Ef-0 near Custar in Wood County (sw of Bowling Green).
http://www.weather.gov/cle/2013_June12-13

 

[Jason Harris]

Would still like to hear what factors led to tornado watch in the afternoon/early evening in East/Central Ohio so far ahead of the warm front?

 

[Brandon Schmidt]

I wish I knew why a tornado watch went up but I'm not too sure myself. I think it may have been issued based on storms that had already fired but I still don't understand the probabilities with it.

http://www.spc.noaa.gov/products/watch/2013/ww0301.html
(4 moderates and 2 highs)

http://www.spc.noaa.gov/products/watch/2013/ww0298.html
PDS with 6 moderates

Surprised 301 wasn't a PDS although 298 was forecast with 3 inch hail and more numerous intense tornadoes...in my opinion, thoughts of the watch last year on the 29th that should have been a PDS affected this years event forecast and watches.