Indystorm Posted June 27, 2018 Share Posted June 27, 2018 BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE LINCOLN IL 846 PM CDT TUE JUN 26 2018 THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A * TORNADO WARNING FOR... NORTHERN VERMILION COUNTY IN EAST CENTRAL ILLINOIS... * UNTIL 915 PM CDT * AT 846 PM CDT, A CONFIRMED TORNADO WAS LOCATED NEAR GIFFORD, OR 12 MILES EAST OF RANTOUL, MOVING NORTHEAST AT 30 MPH. HAZARD...DAMAGING TORNADO. SOURCE...WEATHER SPOTTERS CONFIRMED TORNADO. IMPACT...FLYING DEBRIS WILL BE DANGEROUS TO THOSE CAUGHT WITHOUT SHELTER. MOBILE HOMES WILL BE DAMAGED OR DESTROYED. DAMAGE TO ROOFS, WINDOWS, AND VEHICLES WILL OCCUR. TREE DAMAGE IS LIKELY. * THE TORNADO WILL BE NEAR... POTOMAC AROUND 855 PM CDT. RANKIN AROUND 900 PM CDT. HOOPESTON AND ROSSVILLE AROUND 915 PM CDT. Link to comment Share on other sites More sharing options...
Hoosier Posted June 27, 2018 Share Posted June 27, 2018 PRELIMINARY LOCAL STORM REPORT NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 1027 PM CDT TUE JUN 26 2018 ..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON... ..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE.... ..REMARKS.. 0528 PM TORNADO 4 SSE MAPLE PARK 41.85N 88.57W 06/26/2018 KANE IL TRAINED SPOTTER VIDEO SHOWED A FEW VERY BRIEF SURFACE-BASED VORTICES THAT KICKED UP SOME WATER IN A FIELD SOUTHWEST OF THE PERRY ROAD AND MINER ROAD INTERSECTION. THESE ONLY LASTED A FEW SECONDS AND PRODUCED NO DAMAGE. DELAYED REPORT. TIME ESTIMATED FROM RADAR. Link to comment Share on other sites More sharing options...
AppsRunner Posted June 27, 2018 Share Posted June 27, 2018 On mobile so the link may not work, but here’s a video from the Rantoul tornado from ILX’s warning: https://mobile.twitter.com/KevinLighty/status/1011802095719198721 Link to comment Share on other sites More sharing options...
Chambana Posted June 27, 2018 Share Posted June 27, 2018 8 hours ago, AppsRunner said: On mobile so the link may not work, but here’s a video from the Rantoul tornado from ILX’s warning: https://mobile.twitter.com/KevinLighty/status/1011802095719198721 Brief touchdown in Gifford, which if you all remember was the same town that got leveled during the 11/17/13 outbreak. Link to comment Share on other sites More sharing options...
SchaumburgStormer Posted June 27, 2018 Share Posted June 27, 2018 8 hours ago, AppsRunner said: On mobile so the link may not work, but here’s a video from the Rantoul tornado from ILX’s warning: https://mobile.twitter.com/KevinLighty/status/1011802095719198721 I can’t determine if the cameraman is simply really close to the tornado, or is a terrible photographer Link to comment Share on other sites More sharing options...
Chicago Storm Posted June 27, 2018 Share Posted June 27, 2018 As of now it looks like 4 tors confirmed from yesterday. 1 near Hinckley, 2 near Manhattan and 1 near Rantoul. With better lapse rates and a bit more shear/CAPE, definitely could have been a much more significant event. Link to comment Share on other sites More sharing options...
Hoosier Posted June 27, 2018 Share Posted June 27, 2018 EF1 in Manhattan Link to comment Share on other sites More sharing options...
nwohweather Posted June 27, 2018 Share Posted June 27, 2018 Nice to see someone get severe. It’s amazing that I haven’t storm chased once this year! Just a total lack of it here in the Toledo area Link to comment Share on other sites More sharing options...
Hoosier Posted June 28, 2018 Share Posted June 28, 2018 Some video from the Manhattan tornado Link to comment Share on other sites More sharing options...
snowlover2 Posted June 28, 2018 Share Posted June 28, 2018 1 hour ago, Hoosier said: Some video from the Manhattan tornado Wow! Can't get any closer to one than that. Good thing it was weak. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted June 28, 2018 Share Posted June 28, 2018 Chased two different times yesterday being so close to home. Initially went WNW after the first storm to move NE through Kane county that was outflow dominate the entire time I was on it from about NW of Kaneville to east of Burlington. Then ended up going back home only to go back out when new storms were developing south of ARR/I-88 coming northward. Let that ARR storm continue northward to Elburn, letting that go with eyes on the two smaller storms SW of ARR/hwy 30. Positioned SW of Big Rock, a little south of hwy 30 and lapsed the organizing low topped supercell (the southern storm of the two was the one to eventually take off.) It had a lot of good rising motion and inflow feeders into the updraft region and what looked like a little meso hand off early on as a new base and eventual lowering/wall cloud developed to the NNE of where I was, more so along the forward flank almost. I finally stopped lapsing and got back in my car as the left side of the wall cloud really began to spin. Hauling back north across hwy 30 and on a few gravel roads, the area of interest was a big bowl shape wall and the entire thing was spinning. I really believe if surface temperatures were a little warmer/steeper low level lapse rates, this storm would've put down a really sizable tornado as it had the look like it wanted to (the Manhattan storm I believe had slightly warmer surface temps and had better low level structure/clear slot and that was even closer to a really nice large cone tornado.) Anyways, I eventually got back to a north/south road (Dauberman rd) and continued north as really nice funnel formed as the meso hit the boundary and stretched that thing as much as it could. I was looking NW when I took the picture below, on Dauberman rd just south of Kaneville, IL. Another chaser was quite close and had video of ground contact/swirl circulations in a field next to him to confirm that it was a brief/weak tornado. All in all a cool little day and my first tornado in my home county. Link to comment Share on other sites More sharing options...
hawkeye_wx Posted June 28, 2018 Share Posted June 28, 2018 The CAMs totally whiffed on the severe storms with 60-80 mph wind tracking from Nebraska through southeast Iowa today. There are many reports of trees down as they tracked south of Des Moines. Link to comment Share on other sites More sharing options...
Hoosier Posted June 28, 2018 Share Posted June 28, 2018 St. Louis area getting hammered. Link to comment Share on other sites More sharing options...
cyclone77 Posted June 28, 2018 Share Posted June 28, 2018 46 minutes ago, Hoosier said: St. Louis area getting hammered. That complex is plowing right through that extreme surface moisture axis. SPC meso analysis shows PWs over 2" all along that axis, so rainfall rates are likely exceptional with that line. Link to comment Share on other sites More sharing options...
Jackstraw Posted June 29, 2018 Share Posted June 29, 2018 If that ridge was just centered 150 miles east it would be game on. Link to comment Share on other sites More sharing options...
zinski1990 Posted June 29, 2018 Share Posted June 29, 2018 wonder if this is a derecho? Link to comment Share on other sites More sharing options...
Chicago Storm Posted June 29, 2018 Share Posted June 29, 2018 Classic ridge riding derecho today. Link to comment Share on other sites More sharing options...
cyclone77 Posted June 29, 2018 Share Posted June 29, 2018 2 hours ago, Chicago Storm said: Classic ridge riding derecho today. Yep. Started way out in western NE about this time last night. Still going (although not severe anymore) and entering northern Mississippi. https://mesonet.agron.iastate.edu/current/mcview.phtml?prod=usrad&java=script&mode=archive&frames=200&interval=5&year=2018&month=6&day=28&hour=0&minute=30 Link to comment Share on other sites More sharing options...
Chinook Posted June 29, 2018 Share Posted June 29, 2018 It is kind of interesting that there were two or more disconnected squall line events, that produced such a perfectly connected pattern of wind damage reports. This would probably fit the definition of a (couple of) derecho(es). I suppose the classic definition of derecho is contained in Johns and Hirt (1987) Not that I want to look this up and read this, but the paper citation is: Johns, R. H., and W. D. Hirt, 1987: Derechos: widespread convectively induced windstorms. Wea. Forecasting, 2, 32-49. Link to comment Share on other sites More sharing options...
The_Doctor Posted June 29, 2018 Share Posted June 29, 2018 32 minutes ago, Chinook said: It is kind of interesting that there were two or more disconnected squall line events, that produced such a perfectly connected pattern of wind damage reports. This would probably fit the definition of a (couple of) derecho(es). I suppose the classic definition of derecho is contained in Johns and Hirt (1987) Not that I want to look this up and read this, but the paper citation is: Johns, R. H., and W. D. Hirt, 1987: Derechos: widespread convectively induced windstorms. Wea. Forecasting, 2, 32-49. Found this definition on the SPC website: "By definition, if the swath of wind damage extends for more than 250 miles (about 400 kilometers), includes wind gusts of at least 58 mph (93 km/h) along most of its length, and also includes several, well-separated 75 mph (121 km/h) or greater gusts, then the event may be classified as a derecho. " I think that the North Dakota and Southern Illinois storms would be considered derechos under this definition. Certainly a very active day of severe weather Link to comment Share on other sites More sharing options...
Chinook Posted June 29, 2018 Share Posted June 29, 2018 Looking back at yesterday, should the SPC have given a moderate or high risk for wind damage in the areas that got the derecho(es)? You may think it's a dumb question. I suppose this may be an interestingly bad bust -- some 400-500 (300-400 filtered?) storm reports were in a marginal and/or slight risk yesterday, far away from the moderate risk in the north. Link to comment Share on other sites More sharing options...
HillsdaleMIWeather Posted June 29, 2018 Share Posted June 29, 2018 1 hour ago, Chinook said: Looking back at yesterday, should the SPC have given a moderate or high risk for wind damage in the areas that got the derecho(es)? You may think it's a dumb question. I suppose this may be an interestingly bad bust -- some 400-500 (300-400 filtered?) storm reports were in a marginal and/or slight risk yesterday, far away from the moderate risk in the north. I have to agree, Once the Illinois one got going I was expecting an Enhanced at the least. Link to comment Share on other sites More sharing options...
Chicago Storm Posted June 29, 2018 Share Posted June 29, 2018 SPC did a downright horrible job yesterday. Not only how they handled outlooks, but also watch issuance. Goes to show how reliant on CAM’s they are. CAM’s showed absolutely nothing yesterday, even while the even was unfolding. The HRRR really didn’t catch on until around noon in showing anything. Link to comment Share on other sites More sharing options...
Powerball Posted June 29, 2018 Share Posted June 29, 2018 2 hours ago, Chinook said: Looking back at yesterday, should the SPC have given a moderate or high risk for wind damage in the areas that got the derecho(es)? You may think it's a dumb question. I suppose this may be an interestingly bad bust -- some 400-500 (300-400 filtered?) storm reports were in a marginal and/or slight risk yesterday, far away from the moderate risk in the north. In all fairness, it was a marginal setup that could have easily gone the other way. It was all dependent on mesoscale waves (which models always struggle to handle) that happened to overachieve. Link to comment Share on other sites More sharing options...
HillsdaleMIWeather Posted June 30, 2018 Share Posted June 30, 2018 1 hour ago, Powerball said: In all fairness, it was a marginal setup that could have easily gone the other way. It was all dependent on mesoscale waves (which models always struggle to handle) that happened to overachieve. They still should've fixed the outlook accordingly at the 1630Z Outlook Link to comment Share on other sites More sharing options...
HillsdaleMIWeather Posted June 30, 2018 Share Posted June 30, 2018 Link to comment Share on other sites More sharing options...
snowlover2 Posted June 30, 2018 Share Posted June 30, 2018 Don't know if yesterday's event can be called a derecho but it would have been ironic if it happened today being the anniversary of the 2012 derecho. That one was a beauty. Link to comment Share on other sites More sharing options...
Chicago Storm Posted June 30, 2018 Share Posted June 30, 2018 1 hour ago, snowlover2 said: Don't know if yesterday's event can be called a derecho but it would have been ironic if it happened today being the anniversary of the 2012 derecho. That one was a beauty. The main MCS was definitely a derecho. Link to comment Share on other sites More sharing options...
Tim from Springfield (IL) Posted June 30, 2018 Share Posted June 30, 2018 15 hours ago, snowlover2 said: Don't know if yesterday's event can be called a derecho but it would have been ironic if it happened today being the anniversary of the 2012 derecho. That one was a beauty. Also the 20th anniversary of the 6/29/1998 "Corn Belt Derecho." (IA, most of IL, C/S IN, N KY). Which occurred primarily south of the areas affected 14 years later on 6/29/2012. That day SPC issued tornado watches in anticipation of the event. I can't remember for sure but the one that was in E IA/western and central IL might have even been a PDS tornado watch (but don't quote me on that). Many areas didn't have power restored until at least July 4th. https://www.spc.noaa.gov/misc/AbtDerechos/casepages/jun291998page.htm Link to comment Share on other sites More sharing options...
CheeselandSkies Posted June 30, 2018 Share Posted June 30, 2018 Radar over Iowa lit up pretty good. New blue box includes Madison, although complex crossing the MS is mostly sub-severe ATTM.Sent from my SM-G955U using Tapatalk Link to comment Share on other sites More sharing options...
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