Alert archive / Illinois / Mesoscale Discussions / 2003

Mesoscale Discussions in Illinois, March 2003

13 mesoscale discussions in March 2003. 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 March 2003. Tap one for its archive.

Mesoscale Discussions
13
Busiest day
March 28, 20034 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
Mar 4, 10:21 AM CSTMesoscale DiscussionSPCBoone, Carroll, DeKalb, Jo Daviess, Kane, Lake and 7 more4 hr
Mar 8, 1:23 PM CSTMesoscale DiscussionSPCBond, Champaign, Christian, Clark, Clay, Clinton and 26 more3 hr
Mar 8, 4:58 PM CSTMesoscale DiscussionSPCClark, Clay, Coles, Crawford, Cumberland, Douglas and 16 more2 hr
Mar 12, 9:28 PM CSTMesoscale DiscussionSPCChristian, Clark, Coles, Cumberland, Douglas, Greene and 9 more2 hr
Mar 12, 9:52 PM CSTMesoscale DiscussionSPCMonroe, Saint Clair113 min
Mar 13, 1:35 AM CSTMesoscale DiscussionSPCAlexander, Franklin, Hamilton, Jackson, Jefferson, Johnson and 7 more115 min
Mar 19, 1:29 PM CSTMesoscale DiscussionSPCAlexander, Bond, Clark, Clay, Clinton, Coles and 29 more3 hr
Mar 20, 12:23 PM CSTMesoscale DiscussionSPCHardin3 hr
Mar 24, 5:54 PM CSTMesoscale DiscussionSPCAdams, Brown, Cass, Fulton, Hancock, Henderson and 12 more3 hr
Mar 28, 7:35 AM CSTMesoscale DiscussionSPCClark, Edgar, Vermilion3 hr
Mar 28, 10:22 AM CSTMesoscale DiscussionSPCClark, Crawford, Cumberland, Edgar, Edwards, Gallatin and 13 more113 min
Mar 28, 3:30 PM CSTMesoscale DiscussionSPCHardin, Wabash2 hr
Mar 28, 5:27 PM CSTMesoscale DiscussionSPCGallatin, Hardin, Wabash93 min

By county

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

46 more counties

Nearby

Alerts in force nowTornadoes on recordThe radar archive20022004

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.