Thundersnow12 Posted September 24, 2011 Author Share Posted September 24, 2011 taken by Scott Weberpal Link to comment Share on other sites More sharing options...
Hoosier Posted September 24, 2011 Share Posted September 24, 2011 I remember the 5/10/03 event. I'm pretty sure there were PDS tornado watches that night. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted September 24, 2011 Author Share Posted September 24, 2011 I remember the 5/10/03 event. I'm pretty sure there were PDS tornado watches that night. Correct, I think 6 or so all together with the last one being issued at 9pm. I'd have to go back and check but this might be the last event where a PDS tornado watch was issued for northeast IL and chi metro. Link to comment Share on other sites More sharing options...
Hoosier Posted September 24, 2011 Share Posted September 24, 2011 yep...here ya go thundersnow/chicago storm URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 348 NWS STORM PREDICTION CENTER NORMAN OK 805 PM CDT SAT MAY 10 2003 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF NORTHEASTERN ILLINOIS NORTHWEST INDIANA SOUTHEAST WISCONSIN LAKE MICHIGAN EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 805 PM UNTIL 200 AM CDT. ...THIS IS A PARTICULARLY DANGEROUS SITUATION... DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER... THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 60 STATUTE MILES EAST AND WEST OF A LINE FROM 70 MILES SOUTH SOUTHEAST OF MARSEILLES ILLINOIS TO 55 MILES NORTH OF MILWAUKEE WISCONSIN. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. OTHER WATCH INFORMATION...CONTINUE...WW 341...WW 342...WW 343...WW 344...WW 345...WW 346...WW 347... DISCUSSION...INTENSE TORNADIC SUPERCELLS WRN IL WILL MOVE RAPIDLY NEWD AHEAD OF DEEPENING LOW. STRONG DEEP LAYER SHEAR AND VERY UNSTABLE AIRMASS WILL CONTINUE TO SUPPORT POTENTIAL FOR LONG LIVED TORNADIC SUPERCELLS ACROSS THE WATCH AREA. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR 24040. ...HALES Link to comment Share on other sites More sharing options...
Chicago Storm Posted September 24, 2011 Share Posted September 24, 2011 taken by Scott Weberpal Great video...especially from IL. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted September 24, 2011 Author Share Posted September 24, 2011 Great video...especially from IL. I watched the Kirksville supercell on 5/13/09 come into IL in Lima where he took that video. Link to comment Share on other sites More sharing options...
Chicago Storm Posted September 24, 2011 Share Posted September 24, 2011 5/10/03... I saw my first lowering/funnel with this event. A cluster of tor warned cells moved into the area from N-C. Illinois. One of the tor warned cells within the cluster(now in the form of a line) moved passed, and as I watched from my front door I witnessed my first lowering/funnel IMBY, which was illuminated by frequent lightning. Looking back at KLOT data, any rotation was weak, but there was enough to produced what was seen. Link to comment Share on other sites More sharing options...
Chicago Storm Posted September 24, 2011 Share Posted September 24, 2011 There's another event that i'm trying to remember that occured several years back. I was in Hanover Park when the cell passed (late afternoon/early evening), and it ended up producing a lowering/clear rotation. I know it was sometime between 2000-2006, but I can't figure out the exact date. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted September 24, 2011 Author Share Posted September 24, 2011 yep...here ya go thundersnow/chicago storm URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 348 NWS STORM PREDICTION CENTER NORMAN OK 805 PM CDT SAT MAY 10 2003 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF NORTHEASTERN ILLINOIS ...THIS IS A PARTICULARLY DANGEROUS SITUATION... DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER... a great trivia question. Link to comment Share on other sites More sharing options...
Chicago Storm Posted September 28, 2011 Share Posted September 28, 2011 Once again, spread out across two posts... 4/20/04... This was a surprise event event. Even the SPC was caught off-guard, with no risk over the area. Precip was ongoing even into mid afternoon, north of the warm front where the main action would occur later. The precip rapidly moved out of the area, a low CAPE environment for as enough destabilization occured with temps recovering into the 60's and dp's around 60. Cells quickly developed after 4PM and pushed northeast across N. Illinois, before weakening later in the evening as they approached a less favorable environment in the Chicago area. Maps and soundings below will tell the rest of the story for the day... Soundings: 12z DVN 12z ILX 0z DVN 0z ILX 12z 500mb, 700mb, and 850mb maps: 0z 500mb, 700mb, and 850mb maps: Link to comment Share on other sites More sharing options...
Chicago Storm Posted September 28, 2011 Share Posted September 28, 2011 Continued... 18z, 21z, and 0z Surface Maps: Radar: Tornado Count: Illinois: 16 F0: 8 F1: 5 F2: 2 F3: 1 Indiana: 12 F0: 8 F1: 4 Nebraska: 2 F0: 2 Iowa: 1 F1: 1 Texas: 1 F0: 1 Link to comment Share on other sites More sharing options...
Hoosier Posted September 28, 2011 Share Posted September 28, 2011 I will probably remember 4/20/04 as long as I live. I remember the first report of a funnel/tornado out of ILX and still not thinking much would happen. Then all hell broke loose with multiple mini low topped tornadic cells. The thing that obviously sticks out is how underforecast this event was. I really gained an appreciation for low instability/high shear setups following that day. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted September 28, 2011 Author Share Posted September 28, 2011 Great write-ups and papers done by two of the best Jon Davies- http://www.jondavies.net/042004ilin/042004ilin.htm Albert Pietrycha (was working at LOT at the time, now at GLD) http://www.stormeyes.org/pietrycha/040420/summary.html Link to comment Share on other sites More sharing options...
Chicago Storm Posted September 30, 2011 Share Posted September 30, 2011 The next few posts will be outside of the threads time range, but given the amount of events already in the thread...this could be a nice archive thread. With that said, the next few posts will contain events from 1960-1990. Most information will be provided through visuals once again, so there will be a lack of text. Link to comment Share on other sites More sharing options...
Chicago Storm Posted September 30, 2011 Share Posted September 30, 2011 3/12/76... Notes: An F2 tornado passed near ORD, which produced significant damage and killed 2. Soundings: 12z DVN 12z ILX 0z DVN 0z ILX 12z Upper Air Maps: 0z Upper Air Maps: Tornado Count: 27 Illinois: 3 F2: 1 F3: 2 Indiana: 13 F0: 2 F1: 5 F2: 3 F3: 3 Michigan: 7 F1: 2 F2: 5 Ohio: 1 F1: Alabama: 6 F1: 2 F2: 2 F3: 2 Link to comment Share on other sites More sharing options...
Chicago Storm Posted September 30, 2011 Share Posted September 30, 2011 11/12/65... Notes: The F2 tornado that moved through Grundy and Will counties produced significant damage and killed 2. The F2 tornado that moved through LaSalle and Grundy counties caused damage to planes and hangars at the Streator airport. Soundings: ILX not avaliable. DTX used in it's place. 12z DVN 0z DVN 12z DTX 0z DTX 12z Upper Air Maps: 0z Upper Air Maps: Tornado Count: 7 Illinois: 6 F0: 1 F2: 5 Indiana: 1 F3: 1 Link to comment Share on other sites More sharing options...
Chicago Storm Posted September 30, 2011 Share Posted September 30, 2011 5/26/65... Notes: The F2 tornado that pushed across DuPage and Cook counties moved close to ORD. Soundings: 12z DVN 0z DVN 12z Upper Air Maps: 0z Upper Air Maps: Tornado Count: 8 Illinois: 3 F1: 1 F2: 2 Indiana: 1 F0: 1 Ohio: 1 F1: 1 Kentucky: 1 F2: 1 Arkansas: 1 F2: 1 Mississippi: 1 F1: 1 Link to comment Share on other sites More sharing options...
Thundersnow12 Posted September 30, 2011 Author Share Posted September 30, 2011 nice work on all 3 of those man Link to comment Share on other sites More sharing options...
Chicago Storm Posted September 30, 2011 Share Posted September 30, 2011 nice work on all 3 of those man thanks I have several more already done, but i'll limit myself to posting a few a night. slow and boring periods at work gives me a lot of free time. in other words, i'm taking over your thread. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted September 30, 2011 Author Share Posted September 30, 2011 thanks I have several more already done, but i'll limit myself to posting a few a night. slow and boring periods at work gives me a lot of free time. in other words, i'm taking over your thread. lol if I get some time I will add a few but have been doing stuff for my blizzard talk. Link to comment Share on other sites More sharing options...
MoeWx Posted September 30, 2011 Share Posted September 30, 2011 This is a pretty neat thread! I'll have to keep an eye on it. Link to comment Share on other sites More sharing options...
Chicago Storm Posted October 1, 2011 Share Posted October 1, 2011 3/27/91... Notes: There were 7 injuries associated with the F3 tornado that pushed through Will and Cook counties. Soundings: 12z DVN 0z DVN 12z DTX 0z DTX 12z Upper Air Soundings: 0z Upper Air Soundings: Tornado Count: 26 Illinois: 4 F0: 2 F1: 1 F3: 1 Michigan: 15 F0: 5 F1: 3 F2: 3 F3: 4 Indiana: 4 F0: 3 F3: 1 Wisconsin: 1 F2: 1 Iowa: 1 F2: 1 Ohio: 1 F3: 1 Tennessee: 1 F1: 1 Link to comment Share on other sites More sharing options...
Hoosier Posted October 1, 2011 Share Posted October 1, 2011 I know this would be more difficult but any plans to do pre-1950? Link to comment Share on other sites More sharing options...
Chicago Storm Posted October 1, 2011 Share Posted October 1, 2011 I know this would be more difficult but any plans to do pre-1950? I'll likely just end up ploting the pre-1950 tornadoes, as other information becomes very limited or non-existent. Link to comment Share on other sites More sharing options...
Hoosier Posted October 1, 2011 Share Posted October 1, 2011 I'll likely just end up ploting the pre-1950 tornadoes, as other information becomes very limited or non-existent. Cool...looking forward to it. If I may submit a request...I'd like to see 3/28/1920 Link to comment Share on other sites More sharing options...
Chicago Storm Posted October 1, 2011 Share Posted October 1, 2011 Cool...looking forward to it. If I may submit a request...I'd like to see 3/28/1920 Without a doubt that one will be done. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted October 1, 2011 Author Share Posted October 1, 2011 Cool...looking forward to it. If I may submit a request...I'd like to see 3/28/1920 That was IN/OH I believe? Link to comment Share on other sites More sharing options...
Hoosier Posted October 1, 2011 Share Posted October 1, 2011 That was IN/OH I believe? And Illinois, Michigan, Alabama, and Georgia (might be leaving out a few). It was pretty much the benchmark outbreak for Chicagoland until 4/21/67. Link to comment Share on other sites More sharing options...
Thundersnow12 Posted October 1, 2011 Author Share Posted October 1, 2011 And Illinois, Michigan, Alabama, and Georgia (might be leaving out a few). It was pretty much the benchmark outbreak for Chicagoland until 4/21/67. Well I got 2 states right lol Link to comment Share on other sites More sharing options...
Hoosier Posted October 1, 2011 Share Posted October 1, 2011 Well I got 2 states right lol 3/28/20 is one of those events that we'll never know how significant it truly was. Many tornadoes likely weren't counted and blacks were not counted in the death toll back then. Link to comment Share on other sites More sharing options...
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