Jim Martin Posted July 21, 2017 Share Posted July 21, 2017 Quarters and 70 about to move through the Rockford area. Link to comment Share on other sites More sharing options...
Jim Martin Posted July 21, 2017 Share Posted July 21, 2017 lotchat 2017/07/21 4:10 PM iembot Rockford [Winnebago Co, IL] LAW ENFORCEMENT reports TSTM WND DMG at 2:53 PM CDT -- NUMEROUS CALLS OF TREES AND POWERLINES DOWNED THROUGHOUT THE CITY Link to comment Share on other sites More sharing options...
SchaumburgStormer Posted July 21, 2017 Share Posted July 21, 2017 2 minutes ago, Jim Martin said: lotchat 2017/07/21 4:10 PM iembot Rockford [Winnebago Co, IL] LAW ENFORCEMENT reports TSTM WND DMG at 2:53 PM CDT -- NUMEROUS CALLS OF TREES AND POWERLINES DOWNED THROUGHOUT THE CITY Smoked right through the city Link to comment Share on other sites More sharing options...
Jim Martin Posted July 21, 2017 Share Posted July 21, 2017 13 minutes ago, SchaumburgStormer said: Smoked right through the city Cross your fingers Rockford does not get hit hard again later this evening and tonight. Link to comment Share on other sites More sharing options...
Hoosier Posted July 21, 2017 Share Posted July 21, 2017 5 minutes ago, Jim Martin said: Cross your fingers Rockford does not get hit hard again later this evening and tonight. Already reports of flash flooding and that cell was in and out. Link to comment Share on other sites More sharing options...
DaveNay Posted July 21, 2017 Share Posted July 21, 2017 Just now, Hoosier said: Already reports of flash flooding and that cell was in and out. That cell accelerated like a Ferrari on the radar loop Link to comment Share on other sites More sharing options...
Jim Martin Posted July 21, 2017 Share Posted July 21, 2017 91° air temperature & 80° dewpoint currently at Iowa City, Iowa. Link to comment Share on other sites More sharing options...
hawkeye_wx Posted July 21, 2017 Share Posted July 21, 2017 8 minutes ago, Jim Martin said: 91° air temperature & 80° dewpoint currently at Iowa City, Iowa. And... a severe storm warning just issued for Iowa City as a cell has popped along the stationary outflow boundary. Link to comment Share on other sites More sharing options...
Jim Martin Posted July 21, 2017 Share Posted July 21, 2017 Hodograph currenty at Des Moines, Iowa. Link to comment Share on other sites More sharing options...
Jim Martin Posted July 21, 2017 Share Posted July 21, 2017 Current radar of severe storm in eastern Iowa. Link to comment Share on other sites More sharing options...
SchaumburgStormer Posted July 21, 2017 Share Posted July 21, 2017 42 minutes ago, Hoosier said: Already reports of flash flooding and that cell was in and out. Moved through quickly and threw down some boundaries for later. Going to be messy tonight Link to comment Share on other sites More sharing options...
OceanStWx Posted July 21, 2017 Share Posted July 21, 2017 Boy that convection developing in western IA looks like it could turn into a freight train down that theta-e axis Link to comment Share on other sites More sharing options...
Hoosier Posted July 21, 2017 Share Posted July 21, 2017 Area Forecast Discussion National Weather Service Chicago/Romeoville, IL 431 PM CDT Fri Jul 21 2017 .MESOSCALE DISCUSSION... 426 PM CDT Severe thunderstorm threat increasing across northern Illinois late this afternoon within a strongly unstable and moderately sheared airmass. Couple areas of concern noted per regional obs and satellite imagery. First, an outflow boundary is draped from the northern suburbs of Chicago WSW to near the Quad Cities this afternoon. Satellite imagery reveals changes in the characteristics of the cloud cover along the boundary suggesting weakening convective inhibition and would expect thunderstorm coverage to further increase over the next hour or two along this boundary. Moderately strong deep layer bulk shear would support supercell development, and low LCL heights and increased SRH along the aforementioned boundary suggests there is some threat for tornadoes this afternoon/evening. Second area of concern is a warm frontal boundary draped from near the Quad Cities southeast through near Pontiac to Danville. Cumulus not really well defined along this boundary at the moment but there are some thunderstorms developing just south within the warm sector. If further development occurs along the front, Bunkers right moving supercell vectors oriented parallel to the boundary suggest that storms could become latched onto the boundary which would also be an area of concern for supercells/tornadoes. Beyond the next couple hours, strengthening low level jet this evening will result in renewed thunderstorm development to our west with training thunderstorms producing heavy rain and a heightened flooding concern, especially given saturated soils in place. Deubelbeiss Link to comment Share on other sites More sharing options...
Hoosier Posted July 21, 2017 Share Posted July 21, 2017 Big hailer potential near Chicago as we get into rush hour. Looks like the hail core is south of I-90 though. Link to comment Share on other sites More sharing options...
Jim Martin Posted July 21, 2017 Share Posted July 21, 2017 West of Iowa City currently. Link to comment Share on other sites More sharing options...
Hoosier Posted July 21, 2017 Share Posted July 21, 2017 Warning update on Chicago area cell mentions tennis balls. Link to comment Share on other sites More sharing options...
SchaumburgStormer Posted July 21, 2017 Share Posted July 21, 2017 2 minutes ago, Hoosier said: Big hailer potential near Chicago as we get into rush hour. Looks like the hail core is south of I-90 though. Warned for tennis balls Link to comment Share on other sites More sharing options...
Hoosier Posted July 21, 2017 Share Posted July 21, 2017 3 minutes ago, SchaumburgStormer said: Warned for tennis balls Core should pass close to O'Hare. Link to comment Share on other sites More sharing options...
Stebo Posted July 21, 2017 Share Posted July 21, 2017 1 minute ago, Hoosier said: Core should pass close to O'Hare. Wow ya, that isn't good at all especially if hail golfball or larger is realized. Link to comment Share on other sites More sharing options...
Hoosier Posted July 21, 2017 Share Posted July 21, 2017 3 minutes ago, Stebo said: Wow ya, that isn't good at all especially if hail golfball or larger is realized. So far the reports coming in are under golfball size, but that could obviously change. Link to comment Share on other sites More sharing options...
Hoosier Posted July 21, 2017 Share Posted July 21, 2017 74 mph gust near Itasca. Link to comment Share on other sites More sharing options...
Hoosier Posted July 21, 2017 Share Posted July 21, 2017 Reflectivities have come down some on the latest scan. Link to comment Share on other sites More sharing options...
Hoosier Posted July 21, 2017 Share Posted July 21, 2017 Decent sized corridor with backed low level winds. Will be something to watch. Link to comment Share on other sites More sharing options...
Jim Martin Posted July 21, 2017 Share Posted July 21, 2017 Link to comment Share on other sites More sharing options...
Chinook Posted July 21, 2017 Share Posted July 21, 2017 funnel cloud spotted on the supercell SE of Iowa City Link to comment Share on other sites More sharing options...
hawkeye_wx Posted July 21, 2017 Share Posted July 21, 2017 It's looking like locations from CR westward will have to wait until the LLJ kicks in later. Link to comment Share on other sites More sharing options...
Jim Martin Posted July 21, 2017 Share Posted July 21, 2017 South of Chicago and west of Kanakee currently. Link to comment Share on other sites More sharing options...
SchaumburgStormer Posted July 21, 2017 Share Posted July 21, 2017 Rotation on that storm near forreston il Link to comment Share on other sites More sharing options...
Torchageddon Posted July 22, 2017 Share Posted July 22, 2017 On July 20, 2017 at 1:15 PM, BuffaloWeather said: A tornado just hit 2 mins from my house!! I can't believe I wasn't able to chase... I saw that on GRLevel 3 when I was following the storms in ON. The purple triangle had a 9 in it which must mean something. Are you familiar with the spot where that viral video of the car getting lifted briefly was captured? Link to comment Share on other sites More sharing options...
cyclone77 Posted July 22, 2017 Share Posted July 22, 2017 15 minutes ago, SchaumburgStormer said: Rotation on that storm near forreston il That thing is a BEAST. Serious deviant movement with that storm. Gonna get a thin line of storms here in a bit. Lots of thunder already in the western sky. Link to comment Share on other sites More sharing options...
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