Alert archive / Illinois / Johnson County / Mesoscale Discussions

Mesoscale Discussions in Johnson County, Illinois, 2009

40 mesoscale discussions in 2009. An alert counts here when it covered this county. The archive of mesoscale discussions reaches back to 2003.

Johnson County and its neighbors

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

Mesoscale Discussions
40
Busiest month
June11 mesoscale discussions
Busiest day
January 27, 20094 mesoscale discussions

Over time

By month

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.

IssuedProductOfficeLasted
Jan 6, 12:06 AM CSTMesoscale DiscussionSPC4 hr
Jan 26, 6:59 PM CSTMesoscale DiscussionSPC5 hr
Jan 26, 11:44 PM CSTMesoscale DiscussionSPC5 hr
Jan 27, 6:06 AM CSTMesoscale DiscussionSPC5 hr
Jan 27, 11:25 AM CSTMesoscale DiscussionSPC4 hr
Jan 27, 6:25 PM CSTMesoscale DiscussionSPC6 hr
Jan 27, 11:31 PM CSTMesoscale DiscussionSPC5 hr
Feb 11, 5:26 AM CSTMesoscale DiscussionSPC64 min
Mar 10, 7:31 PM CDTMesoscale DiscussionSPC119 min
Mar 24, 5:36 PM CDTMesoscale DiscussionSPC54 min
Apr 5, 10:50 AM CDTMesoscale DiscussionSPC115 min
Apr 5, 2:02 PM CDTMesoscale DiscussionSPC88 min
Apr 10, 12:50 AM CDTMesoscale DiscussionSPC85 min
Apr 27, 5:08 PM CDTMesoscale DiscussionSPC97 min
May 7, 9:38 PM CDTMesoscale DiscussionSPC97 min
May 7, 11:46 PM CDTMesoscale DiscussionSPC89 min
May 13, 6:05 PM CDTMesoscale DiscussionSPC85 min
May 13, 11:27 PM CDTMesoscale DiscussionSPC93 min
May 27, 1:49 PM CDTMesoscale DiscussionSPC116 min
Jun 8, 8:49 AM CDTMesoscale DiscussionSPC86 min
Jun 8, 7:18 PM CDTMesoscale DiscussionSPC57 min
Jun 8, 9:35 PM CDTMesoscale DiscussionSPC55 min
Jun 9, 3:04 PM CDTMesoscale DiscussionSPC86 min
Jun 10, 5:20 AM CDTMesoscale DiscussionSPC55 min
Jun 10, 7:10 PM CDTMesoscale DiscussionSPC65 min
Jun 16, 3:53 AM CDTMesoscale DiscussionSPC67 min
Jun 16, 9:38 AM CDTMesoscale DiscussionSPC67 min
Jun 17, 3:07 PM CDTMesoscale DiscussionSPC23 min
Jun 20, 1:07 AM CDTMesoscale DiscussionSPC53 min
Jun 26, 2:34 PM CDTMesoscale DiscussionSPC86 min
Jul 4, 5:27 PM CDTMesoscale DiscussionSPC63 min
Jul 11, 6:20 PM CDTMesoscale DiscussionSPC115 min
Jul 12, 1:05 PM CDTMesoscale DiscussionSPC85 min
Jul 15, 5:36 PM CDTMesoscale DiscussionSPC54 min
Jul 16, 4:59 PM CDTMesoscale DiscussionSPC61 min
Jul 25, 3:09 AM CDTMesoscale DiscussionSPC96 min
Aug 4, 2:36 PM CDTMesoscale DiscussionSPC84 min
Aug 4, 6:21 PM CDTMesoscale DiscussionSPC114 min
Aug 10, 5:58 PM CDTMesoscale DiscussionSPC2 hr
Sep 26, 1:42 PM CDTMesoscale DiscussionSPC93 min

The busiest days

Days with the most alerts issued, by UTC date.

  1. January 27, 20094mesoscale discussions
  2. June 9, 20093mesoscale discussions
  3. January 28, 20092mesoscale discussions
  4. April 5, 20092mesoscale discussions
  5. May 8, 20092mesoscale discussions
  6. June 16, 20092mesoscale discussions
  7. August 4, 20092mesoscale discussions
  8. January 6, 20091mesoscale discussions
  9. February 11, 20091mesoscale discussions
  10. March 11, 20091mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordForecastThe 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.