Alert archive / Illinois / Mesoscale Discussions / 2014

Mesoscale Discussions in Illinois, April 2014

31 mesoscale discussions in April 2014. 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 April 2014. Tap one for its archive.

Mesoscale Discussions
31
Busiest day
April 3, 20146 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
Apr 2, 9:17 AM CDTMesoscale DiscussionSPCBond, Calhoun, Clay, Clinton, Edwards, Effingham and 19 more88 min
Apr 2, 3:20 PM CDTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Johnson, Massac, Pope and 4 more2 hr
Apr 3, 1:05 AM CDTMesoscale DiscussionSPCAdams, Hancock, Henderson, McDonough, Mercer, Rock Island and 2 more55 min
Apr 3, 2:49 AM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Bureau, Calhoun, Cass and 44 more116 min
Apr 3, 6:24 AM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Effingham, Fayette, Franklin and 12 more96 min
Apr 3, 9:22 AM CDTMesoscale DiscussionSPCHardin, Massac, Pope83 min
Apr 3, 12:28 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more62 min
Apr 3, 3:17 PM CDTMesoscale DiscussionSPCAdams, Pike58 min
Apr 3, 7:26 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clinton, Fayette, Jersey, Macoupin and 8 more94 min
Apr 3, 8:16 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 8 more59 min
Apr 3, 11:40 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 8 more95 min
Apr 10, 4:01 PM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Coles, Cumberland, Douglas and 12 more89 min
Apr 12, 10:24 AM CDTMesoscale DiscussionSPCBoone, Cook, DuPage, Kane, Lake, McHenry and 2 more2 hr
Apr 12, 2:30 PM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Stephenson2 hr
Apr 12, 6:20 PM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Stephenson55 min
Apr 12, 9:08 PM CDTMesoscale DiscussionSPCBoone, Carroll, Jo Daviess, McHenry, Ogle, Stephenson and 1 more67 min
Apr 12, 11:26 PM CDTMesoscale DiscussionSPCBoone, Carroll, Jo Daviess, McHenry, Ogle, Rock Island and 3 more64 min
Apr 13, 1:37 AM CDTMesoscale DiscussionSPCBoone, Carroll, DeKalb, Jo Daviess, Lee, McHenry and 5 more83 min
Apr 13, 7:41 AM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Greene, Hancock, Henderson and 5 more2 hr
Apr 13, 9:12 PM CDTMesoscale DiscussionSPCBond, Calhoun, Clinton, Jackson, Jersey, Madison and 5 more63 min
Apr 24, 5:50 PM CDTMesoscale DiscussionSPCMassac85 min
Apr 24, 6:12 PM CDTMesoscale DiscussionSPCCass, Macoupin, Madison, Mason, Menard, Monroe and 4 more93 min
Apr 27, 1:59 PM CDTMesoscale DiscussionSPCCalhoun61 min
Apr 27, 4:26 PM CDTMesoscale DiscussionSPCCarroll, Hancock, Henderson, Henry, Jo Daviess, Knox and 3 more64 min
Apr 27, 11:41 PM CDTMesoscale DiscussionSPCAlexander, Hardin, Johnson, Massac, Pope, Pulaski and 1 more94 min
Apr 28, 1:43 AM CDTMesoscale DiscussionSPCBond, Clinton, Franklin, Jackson, Jefferson, Madison and 8 more92 min
Apr 28, 12:54 PM CDTMesoscale DiscussionSPCAdams, Brown, Calhoun, Cass, Fulton, Greene and 16 more2 hr
Apr 28, 3:13 PM CDTMesoscale DiscussionSPCAlexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 9 more2 hr
Apr 28, 3:38 PM CDTMesoscale DiscussionSPCAdams, Bond, Brown, Bureau, Calhoun, Cass and 42 more2 hr
Apr 28, 6:10 PM CDTMesoscale DiscussionSPCBond, Bureau, Christian, Clay, Clinton, Coles and 51 more95 min
Apr 29, 11:47 AM CDTMesoscale DiscussionSPCCook, DuPage, Lake88 min

By county

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

57 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive20132015

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.