Alert archive / Illinois / Special Marine Warnings

Special Marine Warnings in Illinois, 2018

30 special marine warnings in 2018. 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 special marine warnings reaches back to 1986.

Special Marine Warnings by county

Each county as a circle sized by its count in 2018. Tap one for its archive.

Special Marine Warnings
30
Busiest month
May9 special marine warnings
Busiest day
August 1, 20184 special marine warnings

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.

IssuedProductOfficeCountiesLasted
Feb 20, 1:21 PM CSTSpecial Marine WarningLOT84 min
May 2, 4:43 PM CDTSpecial Marine WarningLOT47 min
May 2, 4:55 PM CDTSpecial Marine WarningLOT35 min
May 2, 7:21 PM CDTSpecial Marine WarningLOT84 min
May 2, 8:41 PM CDTSpecial Marine WarningLOT3 hr
May 2, 11:41 PM CDTSpecial Marine WarningLOT2 hr
May 9, 4:52 PM CDTSpecial Marine WarningLOT53 min
May 9, 5:26 PM CDTSpecial Marine WarningLOT64 min
May 14, 5:29 PM CDTSpecial Marine WarningLOT3 hr
May 31, 2:57 PM CDTSpecial Marine WarningLOT34 min
Jun 16, 12:17 AM CDTSpecial Marine WarningLOT58 min
Jun 16, 2:14 AM CDTSpecial Marine WarningLOT91 min
Jun 18, 4:38 PM CDTSpecial Marine WarningLOT2 hr
Jul 1, 4:28 PM CDTSpecial Marine WarningLOT2 hr
Jul 4, 9:43 PM CDTSpecial Marine WarningLOT62 min
Aug 1, 3:20 PM CDTSpecial Marine WarningLOT25 min
Aug 1, 3:51 PM CDTSpecial Marine WarningLOT39 min
Aug 1, 4:41 PM CDTSpecial Marine WarningLOT49 min
Aug 1, 5:31 PM CDTSpecial Marine WarningLOT29 min
Aug 21, 5:28 AM CDTSpecial Marine WarningLOT2 hr
Aug 28, 5:23 PM CDTSpecial Marine WarningLOT82 min
Aug 28, 6:01 PM CDTSpecial Marine WarningLOT44 min
Aug 28, 9:20 PM CDTSpecial Marine WarningLOT115 min
Aug 29, 5:40 AM CDTSpecial Marine WarningLOT35 min
Aug 31, 8:17 PM CDTSpecial Marine WarningLOT88 min
Sep 3, 1:56 PM CDTSpecial Marine WarningLOT64 min
Sep 3, 2:58 PM CDTSpecial Marine WarningLOT36 min
Sep 5, 2:55 PM CDTSpecial Marine WarningLOT35 min
Sep 25, 4:34 PM CDTSpecial Marine WarningLOT116 min
Sep 25, 6:25 PM CDTSpecial Marine WarningLOT50 min

The busiest days

Days with the most alerts issued, by UTC date.

  1. August 1, 20184special marine warnings
  2. May 3, 20183special marine warnings
  3. May 2, 20182special marine warnings
  4. May 9, 20182special marine warnings
  5. June 16, 20182special marine warnings
  6. August 28, 20182special marine warnings
  7. August 29, 20182special marine warnings
  8. September 3, 20182special marine warnings
  9. September 25, 20182special marine warnings
  10. February 20, 20181special marine warnings
  11. May 14, 20181special marine warnings
  12. May 31, 20181special marine warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20172019

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.