tornadotony Posted July 1, 2012 Share Posted July 1, 2012 Intense wind with the southern part of the line. I would estimate gusts over 50. Also getting some pea-sized hail. Link to comment Share on other sites More sharing options...
cyclone77 Posted July 1, 2012 Share Posted July 1, 2012 52mph wind gust reported earlier in Thundersnow12ville (Batavia). Interesting how quickly this thing transitioned from elevated stuff to a ground hugging downburst machine. Link to comment Share on other sites More sharing options...
Hoar_Frost Posted July 1, 2012 Share Posted July 1, 2012 Rain has ended, and skies are beginning to clear here. 0.59". Link to comment Share on other sites More sharing options...
SouthernNJ Posted July 1, 2012 Share Posted July 1, 2012 Chesterton to Valpo about to get an intense storm cluster. Also, the storm nearing Logansport and Kokomo is getting dangerous as well. Link to comment Share on other sites More sharing options...
A-L-E-K Posted July 1, 2012 Share Posted July 1, 2012 52mph wind gust reported earlier in Thundersnow12ville (Batavia). Interesting how quickly this thing transitioned from elevated stuff to a ground hugging downburst machine. the warm front convection propped up by the llj over southern iowa lasted just long enough to send a an outflow boundary north into some seriously unstable air lurking to the north...kind of weird. Link to comment Share on other sites More sharing options...
YHM Supercell Posted July 1, 2012 Share Posted July 1, 2012 Chesterton to Valpo about to get an intense storm cluster. Also, the storm nearing Logansport and Kokomo is getting dangerous as well. Thank you. Link to comment Share on other sites More sharing options...
Indystorm Posted July 1, 2012 Share Posted July 1, 2012 the warm front convection propped up by the llj over southern iowa lasted just long enough to send a an outflow boundary north into some seriously unstable air lurking to the north...kind of weird. Earlier SPC meso discussion even mentioned the possibility of gravity wave movement. Link to comment Share on other sites More sharing options...
tornadotony Posted July 1, 2012 Share Posted July 1, 2012 80 MPH winds in Griffith with the storm that passed through here. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted July 1, 2012 Share Posted July 1, 2012 Passing through GRR on the way home. Probably won't catch northern most cell. Link to comment Share on other sites More sharing options...
Geos Posted July 1, 2012 Share Posted July 1, 2012 About 30mph winds here. Cooled off about 8°. as the outflow boundary pushed through. - clouded back up. Link to comment Share on other sites More sharing options...
A-L-E-K Posted July 1, 2012 Share Posted July 1, 2012 not all that bad downtown...cell had certainly lost some strength as southern action assumed dominance. Link to comment Share on other sites More sharing options...
cyclone77 Posted July 1, 2012 Share Posted July 1, 2012 Gusting to 73mph at LOT at 1:15pm. Hmmmm. Instrument issues? Link to comment Share on other sites More sharing options...
McDude Posted July 1, 2012 Share Posted July 1, 2012 Here at work in the Woodlawn area near 70/Cottage. Very dark clouds, lots of rain. Windy but nothing major, maybe peak gust at 50mph. As someone else reported, low hanging clouds once it went over the cemetery at 67 and Greenwood. Link to comment Share on other sites More sharing options...
Geos Posted July 1, 2012 Share Posted July 1, 2012 Sounds like the Elmhurst got hit pretty good. Out in the Fox Valley as well. 1218 PM TSTM WND GST ST. CHARLES 41.92N 88.30W 07/01/2012 E70.00 MPH KANE IL TRAINED SPOTTER ALSO PEA SIZE HAIL 1238 PM TSTM WND GST ELMHURST 41.90N 87.94W 07/01/2012 E80.00 MPH DUPAGE IL TRAINED SPOTTER LARGE TREES DOWN Link to comment Share on other sites More sharing options...
A-L-E-K Posted July 1, 2012 Share Posted July 1, 2012 going to be a lot of time for things to recharge... Link to comment Share on other sites More sharing options...
cyclone77 Posted July 1, 2012 Share Posted July 1, 2012 going to be a lot of time for things to recharge... Quite a ways away but I notice there's some new convection popping way upstream in southwest Minnesota. Huge surface cape over Iowa. Link to comment Share on other sites More sharing options...
A-L-E-K Posted July 1, 2012 Share Posted July 1, 2012 Quite a ways away but I notice there's some new convection popping way upstream in southwest Minnesota. Huge surface cape over Iowa. i was watching the same thing...pretty sure that will be the next round...track looks to run through all the same areas. Link to comment Share on other sites More sharing options...
Hoar_Frost Posted July 1, 2012 Share Posted July 1, 2012 Southern Minnesota is the area I always keep an eye on for some nicely developed nocturnal MCSs for northern Illinois. Given the favorable conditions downstream (or conditions ripe for "recharging"), I'd say that it's definitely something on which to keep an eye. Link to comment Share on other sites More sharing options...
Geos Posted July 1, 2012 Share Posted July 1, 2012 i was watching the same thing...pretty sure that will be the next round...track looks to run through all the same areas. Hopefully some of that will make it further north. Don't want the high winds though! Outflow cooled it off to around 80°. Link to comment Share on other sites More sharing options...
A-L-E-K Posted July 1, 2012 Share Posted July 1, 2012 Southern Minnesota is the area I always keep an eye on for some nicely developed nocturnal MCSs for northern Illinois. Given the favorable conditions downstream (or conditions ripe for "recharging"), I'd say that it's definitely something on which to keep an eye. quite a few case examples off quality overnight MCSs from that source region...getting things sufficiently organized seems like the major hurdle. Link to comment Share on other sites More sharing options...
tornadotony Posted July 1, 2012 Share Posted July 1, 2012 Reviewing the KLOT radar data, it seems likely that the extreme downburst in DuPage County was at least partly modulated by the lake breeze boundary. The first image shows the lake breeze very clearly, with an outflow boundary from dying cells along with the intensifying cells right behind the boundary. The northern-most storm was the one that would produce the problems. A few minutes later, you can see the northern cell has become quite intense, with a major precip core driving the wet downburst. Once again, you can see the lake breeze and how this storm is basically riding it at this time. The BV image coincident with the previous BR image shows the divergent signature of the downburst very well. Note that with the propagation of the cell being from W to E, you don't see very high velocity values from KLOT. But the major divergence is a dead giveaway to major wind damage potential. Link to comment Share on other sites More sharing options...
A-L-E-K Posted July 1, 2012 Share Posted July 1, 2012 very cool, thanks Tony Link to comment Share on other sites More sharing options...
Hoar_Frost Posted July 1, 2012 Share Posted July 1, 2012 I wonder whether the ASOS at KDPA suffered some damage from the storms as it appears to be out of operation ATTM. Link to comment Share on other sites More sharing options...
kevlon62 Posted July 1, 2012 Share Posted July 1, 2012 Quite a ways away but I notice there's some new convection popping way upstream in southwest Minnesota. Huge surface cape over Iowa. Hoping we get something up here along the northern tier of counties. We got out of breakfast in time to see the outflow boundary from the latest round rushing overhead to the north - I'm not too dismal about missing the severe action - the societal effects seems to have been pretty ridiculous the last few days however the lack of rain even in just the very local area that I am aware of (i.e. McHenry County) continues to be troubling. Talked with Farm Bureau manager up here last week who said at least an inch a week would get things back on track here. This being the severe thread, will be interesting to see how the airmass recovers this afternoon. Link to comment Share on other sites More sharing options...
Geos Posted July 1, 2012 Share Posted July 1, 2012 153,000 200,000 Com Ed customers in the metro Cook County without power + there is still customers out from Friday's storm! via TWC & WGN. http://www.wgntv.com...0,7480814.story Some windows reported blown out in Winnetka. Any damage by you Alek? Link to comment Share on other sites More sharing options...
Thundersnow12 Posted July 1, 2012 Share Posted July 1, 2012 Big time towers on north side of ongoing storms. Probably in extreme sw MI. Almost up to anvil height of others. Link to comment Share on other sites More sharing options...
Baroclinicity Posted July 1, 2012 Share Posted July 1, 2012 I wonder whether the ASOS at KDPA suffered some damage from the storms as it appears to be out of operation ATTM. Check this page for trouble tickets at ASOS sites http://www3.amss.nws.noaa.gov/amsstt.nsf/wFramesetTickets?OpenFrameSet Right now, that site isn't listed as having an issue, but will likely show up since it has the $ maintenance indicator in the metars. Link to comment Share on other sites More sharing options...
Jim Martin Posted July 1, 2012 Share Posted July 1, 2012 Seems like these storms have lost some steam as they have traversed across Indiana this afternoon, so far. Link to comment Share on other sites More sharing options...
Geos Posted July 1, 2012 Share Posted July 1, 2012 Hearing that Villa Park is like a "war zone". Trees and powerlines down everywhere. Trees on cars, houses, across roads. Numbers of power outages reported at least 200K. Link to comment Share on other sites More sharing options...
Indystorm Posted July 1, 2012 Share Posted July 1, 2012 Big time towers on north side of ongoing storms. Probably in extreme sw MI. Almost up to anvil height of others. Svr storm warning issued for Cass and St. Joe Counties in MI from those towers which are just north of my location. Have had some moderate outflow gusts here from them but should pass north of me. I think I'm going to split the difference between these storm complexes this round and still be left high and dry here in Dunlap. Link to comment Share on other sites More sharing options...
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