Alert archive / Illinois / Johnson County / Mesoscale Discussions

Mesoscale Discussions in Johnson County, Illinois, 2017

34 mesoscale discussions in 2017. 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 2017. Tap one for its archive.

Mesoscale Discussions
34
Busiest month
April10 mesoscale discussions
Busiest day
March 1, 20174 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 13, 3:39 AM CSTMesoscale DiscussionSPC6 hr
Feb 28, 1:46 PM CSTMesoscale DiscussionSPC2 hr
Feb 28, 5:28 PM CSTMesoscale DiscussionSPC2 hr
Feb 28, 7:46 PM CSTMesoscale DiscussionSPC119 min
Feb 28, 10:09 PM CSTMesoscale DiscussionSPC66 min
Mar 1, 2:09 AM CSTMesoscale DiscussionSPC2 hr
Mar 1, 4:19 AM CSTMesoscale DiscussionSPC56 min
Mar 6, 11:13 PM CSTMesoscale DiscussionSPC2 hr
Mar 7, 2:58 AM CSTMesoscale DiscussionSPC92 min
Mar 30, 11:56 AM CDTMesoscale DiscussionSPC64 min
Apr 3, 5:02 PM CDTMesoscale DiscussionSPC58 min
Apr 16, 2:02 PM CDTMesoscale DiscussionSPC2 hr
Apr 20, 2:07 PM CDTMesoscale DiscussionSPC53 min
Apr 26, 12:26 PM CDTMesoscale DiscussionSPC94 min
Apr 26, 3:53 PM CDTMesoscale DiscussionSPC97 min
Apr 28, 1:10 PM CDTMesoscale DiscussionSPC2 hr
Apr 28, 6:28 PM CDTMesoscale DiscussionSPC3 hr
Apr 28, 11:55 PM CDTMesoscale DiscussionSPC95 min
Apr 29, 3:39 AM CDTMesoscale DiscussionSPC96 min
Apr 29, 6:30 PM CDTMesoscale DiscussionSPC60 min
May 11, 12:58 PM CDTMesoscale DiscussionSPC3 hr
May 20, 1:45 AM CDTMesoscale DiscussionSPC90 min
May 27, 1:16 PM CDTMesoscale DiscussionSPC59 min
May 27, 3:50 PM CDTMesoscale DiscussionSPC85 min
Jun 16, 12:45 PM CDTMesoscale DiscussionSPC3 hr
Jun 18, 4:48 AM CDTMesoscale DiscussionSPC117 min
Aug 20, 1:06 PM CDTMesoscale DiscussionSPC84 min
Oct 7, 4:40 PM CDTMesoscale DiscussionSPC3 hr
Oct 10, 3:10 PM CDTMesoscale DiscussionSPC2 hr
Nov 2, 7:31 PM CDTMesoscale DiscussionSPC119 min
Nov 5, 2:51 PM CSTMesoscale DiscussionSPC114 min
Nov 5, 6:07 PM CSTMesoscale DiscussionSPC113 min
Nov 18, 10:24 AM CSTMesoscale DiscussionSPC2 hr
Nov 18, 1:48 PM CSTMesoscale DiscussionSPC57 min

The busiest days

Days with the most alerts issued, by UTC date.

  1. March 1, 20174mesoscale discussions
  2. April 29, 20173mesoscale discussions
  3. February 28, 20172mesoscale discussions
  4. March 7, 20172mesoscale discussions
  5. April 26, 20172mesoscale discussions
  6. April 28, 20172mesoscale discussions
  7. May 27, 20172mesoscale discussions
  8. November 18, 20172mesoscale discussions
  9. January 13, 20171mesoscale discussions
  10. March 30, 20171mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20162018

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.