Alert archive / Illinois / Mesoscale Discussions / 2009

Mesoscale Discussions in Illinois, June 2009

63 mesoscale discussions in June 2009. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of mesoscale discussions reaches back to 2003.

Mesoscale Discussions by county

Each county as a circle sized by its count in June 2009. Tap one for its archive.

Mesoscale Discussions
63
Busiest day
June 19, 20097 mesoscale discussions

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
Jun 1, 1:31 PM CDTMesoscale DiscussionSPCBureau, Carroll, Cook, DeKalb, DuPage, Ford and 15 more59 min
Jun 1, 6:34 PM CDTMesoscale DiscussionSPCBureau, DuPage, Ford, Grundy, Iroquois, Kankakee and 13 more86 min
Jun 1, 8:57 PM CDTMesoscale DiscussionSPCChampaign, DeWitt, Ford, Fulton, Iroquois, McDonough and 6 more63 min
Jun 2, 11:58 AM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Clark, Clay, Clinton and 40 more92 min
Jun 2, 3:47 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 34 more88 min
Jun 2, 6:22 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Christian and 32 more83 min
Jun 7, 4:45 AM CDTMesoscale DiscussionSPCHancock30 min
Jun 8, 3:25 AM CDTMesoscale DiscussionSPCAdams, Brown, Hancock, Henderson, McDonough, Mercer and 2 more65 min
Jun 8, 8:49 AM CDTMesoscale DiscussionSPCBond, Clark, Clay, Clinton, Coles, Crawford and 26 more86 min
Jun 8, 11:54 AM CDTMesoscale DiscussionSPCBond, Boone, Brown, Bureau, Calhoun, Cass and 43 more96 min
Jun 8, 3:20 PM CDTMesoscale DiscussionSPCBond, Clinton, Franklin, Jackson, Jefferson, Jersey and 9 more85 min
Jun 8, 3:53 PM CDTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Grundy, Iroquois and 11 more67 min
Jun 8, 5:46 PM CDTMesoscale DiscussionSPCLake59 min
Jun 8, 7:18 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Hamilton, Jackson, Johnson, Perry and 6 more57 min
Jun 8, 9:35 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Jackson, Johnson, Massac, Pope and 4 more55 min
Jun 9, 3:04 PM CDTMesoscale DiscussionSPCAlexander, Jackson, Johnson, Massac, Pulaski, Union86 min
Jun 10, 5:20 AM CDTMesoscale DiscussionSPCAlexander, Hardin, Jackson, Johnson, Massac, Pope and 3 more55 min
Jun 10, 3:13 PM CDTMesoscale DiscussionSPCBond, Clark, Clay, Clinton, Crawford, Cumberland and 17 more92 min
Jun 10, 7:10 PM CDTMesoscale DiscussionSPCAlexander, Bond, Calhoun, Clay, Clinton, Effingham and 25 more65 min
Jun 10, 8:58 PM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Clark, Clay, Clinton and 36 more62 min
Jun 11, 1:00 PM CDTMesoscale DiscussionSPCBond, Clay, Effingham, Fayette, Macoupin, Montgomery60 min
Jun 11, 3:07 PM CDTMesoscale DiscussionSPCClark, Clay, Crawford, Edgar, Edwards, Effingham and 10 more53 min
Jun 11, 3:42 PM CDTMesoscale DiscussionSPCClark, Clay, Crawford, Edgar, Edwards, Effingham and 10 more33 min
Jun 11, 6:02 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Massac, Pope, Pulaski58 min
Jun 14, 6:05 PM CDTMesoscale DiscussionSPCHardin55 min
Jun 15, 6:24 AM CDTMesoscale DiscussionSPCAlexander, Massac, Pulaski, Union96 min
Jun 15, 9:59 AM CDTMesoscale DiscussionSPCAlexander, Pulaski31 min
Jun 15, 1:56 PM CDTMesoscale DiscussionSPCAlexander, Massac, Pulaski, Union64 min
Jun 16, 3:53 AM CDTMesoscale DiscussionSPCBond, Clinton, Franklin, Jackson, Jefferson, Jersey and 12 more67 min
Jun 16, 9:38 AM CDTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Johnson, Massac, Pope and 3 more67 min
Jun 16, 1:10 PM CDTMesoscale DiscussionSPCEdwards, Gallatin, Wabash, Wayne, White35 min
Jun 17, 3:07 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 14 more23 min
Jun 17, 6:42 PM CDTMesoscale DiscussionSPCCalhoun, Monroe2 hr
Jun 18, 1:01 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Fulton, Greene and 11 more89 min
Jun 18, 3:20 AM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Christian, DeWitt, Douglas and 27 more85 min
Jun 18, 6:09 AM CDTMesoscale DiscussionSPCClark, Clay, Coles, Crawford, Cumberland, Edgar and 15 more2 hr
Jun 18, 9:42 AM CDTMesoscale DiscussionSPCBureau, Carroll, Henderson, Henry, Knox, LaSalle and 9 more93 min
Jun 18, 1:17 PM CDTMesoscale DiscussionSPCBureau, Carroll, Fulton, Henderson, Henry, Knox and 17 more88 min
Jun 18, 8:23 PM CDTMesoscale DiscussionSPCBoone, Carroll, DeKalb, Jo Daviess, Lee, McHenry and 4 more97 min
Jun 18, 11:07 PM CDTMesoscale DiscussionSPCBoone, Carroll, Cook, DeKalb, DuPage, Grundy and 11 more53 min
Jun 19, 2:38 AM CDTMesoscale DiscussionSPCBoone, Cook, DeKalb, DuPage, Grundy, Kane and 9 more97 min
Jun 19, 6:58 AM CDTMesoscale DiscussionSPCBureau, Carroll, DeKalb, Henry, Jo Daviess, Kendall and 6 more62 min
Jun 19, 10:57 AM CDTMesoscale DiscussionSPCAdams, Brown, Hancock, McDonough, Schuyler93 min
Jun 19, 1:54 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, DuPage, Grundy and 24 more96 min
Jun 19, 5:37 PM CDTMesoscale DiscussionSPCAdams, Brown, Bureau, Calhoun, Carroll, Cass and 54 more53 min
Jun 19, 7:10 PM CDTMesoscale DiscussionSPCBoone, McHenry95 min
Jun 19, 7:48 PM CDTMesoscale DiscussionSPCBond, Clinton, Madison, Monroe, Perry, Randolph and 2 more87 min
Jun 19, 7:59 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Calhoun, Cass, Champaign and 39 more91 min
Jun 19, 9:45 PM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Clark, Clay, Coles and 16 more30 min
Jun 20, 1:07 AM CDTMesoscale DiscussionSPCClay, Clinton, Crawford, Edwards, Franklin, Gallatin and 18 more53 min
Jun 21, 2:23 PM CDTMesoscale DiscussionSPCChampaign, Christian, Clark, Coles, Crawford, Cumberland and 16 more97 min
Jun 21, 6:14 PM CDTMesoscale DiscussionSPCClay, Crawford, Edwards, Jasper, Lawrence, Richland and 2 more91 min
Jun 22, 6:25 PM CDTMesoscale DiscussionSPCClay, Edwards, Jasper, Richland, Wabash, Wayne and 1 more65 min
Jun 23, 5:32 PM CDTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Hancock, Henderson and 8 more58 min
Jun 25, 12:14 PM CDTMesoscale DiscussionSPCBrown, Bureau, Carroll, Cass, Fulton, Hancock and 18 more61 min
Jun 25, 2:56 PM CDTMesoscale DiscussionSPCBureau, Carroll, Fulton, Henderson, Henry, Jo Daviess and 15 more64 min
Jun 25, 5:36 PM CDTMesoscale DiscussionSPCBureau, Carroll, Fulton, Hancock, Henderson, Henry and 13 more84 min
Jun 26, 2:34 PM CDTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Johnson, Massac, Pope and 4 more86 min
Jun 27, 1:19 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, Henderson, Henry, Jo Daviess and 11 more56 min
Jun 27, 5:43 PM CDTMesoscale DiscussionSPCAdams, Brown, Schuyler62 min
Jun 27, 6:22 PM CDTMesoscale DiscussionSPCBoone, Bureau, Carroll, DeKalb, Fulton, Grundy and 24 more113 min
Jun 27, 7:39 PM CDTMesoscale DiscussionSPCAdams, Pike2 hr
Jun 27, 9:16 PM CDTMesoscale DiscussionSPCCass, Champaign, Christian, Coles, DeWitt, Douglas and 14 more59 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

62 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive20082010

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.