Alert archive / Illinois / Special Marine Warnings

Special Marine Warnings in Illinois, 2026

80 special marine warnings in 2026. 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 2026. Tap one for its archive.

Special Marine Warnings
80
Busiest month
April15 special marine warnings
Busiest day
July 3, 20266 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
Jan 8, 8:33 PM CSTSpecial Marine WarningLOT87 min
Jan 8, 9:55 PM CSTSpecial Marine WarningLOT43 min
Jan 14, 7:11 AM CSTSpecial Marine WarningLOT49 min
Mar 6, 4:25 PM CSTSpecial Marine WarningLOT65 min
Mar 10, 5:45 PM CDTSpecial Marine WarningLOT70 min
Mar 10, 9:04 PM CDTSpecial Marine WarningLOT86 min
Mar 10, 10:34 PM CDTSpecial Marine WarningLOT116 min
Mar 26, 4:28 PM CDTSpecial Marine WarningLOT46 min
Mar 26, 6:26 PM CDTSpecial Marine WarningLOT23 min
Mar 26, 7:23 PM CDTSpecial Marine WarningLOT52 min
Mar 30, 9:55 PM CDTSpecial Marine WarningLOT80 min
Mar 30, 10:04 PM CDTSpecial Marine WarningLOT116 min
Mar 30, 11:23 PM CDTSpecial Marine WarningLOT37 min
Mar 31, 11:30 AM CDTSpecial Marine WarningLOT57 min
Mar 31, 4:03 PM CDTSpecial Marine WarningLOT57 min
Apr 2, 7:52 PM CDTSpecial Marine WarningLOT113 min
Apr 2, 9:40 PM CDTSpecial Marine WarningLOT65 min
Apr 2, 10:24 PM CDTSpecial Marine WarningLOT96 min
Apr 2, 11:58 PM CDTSpecial Marine WarningLOT47 min
Apr 14, 1:42 AM CDTSpecial Marine WarningLOT2 hr
Apr 14, 2:21 AM CDTSpecial Marine WarningLOT114 min
Apr 14, 8:29 PM CDTSpecial Marine WarningLOT2 hr
Apr 14, 9:33 PM CDTSpecial Marine WarningLOT117 min
Apr 14, 11:28 PM CDTSpecial Marine WarningLOT2 hr
Apr 15, 9:20 PM CDTSpecial Marine WarningLOT115 min
Apr 15, 9:48 PM CDTSpecial Marine WarningLOT117 min
Apr 17, 8:06 PM CDTSpecial Marine WarningLOT114 min
Apr 17, 9:04 PM CDTSpecial Marine WarningLOT116 min
Apr 17, 9:59 PM CDTSpecial Marine WarningLOT91 min
Apr 22, 11:06 AM CDTSpecial Marine WarningLOT51 min
May 4, 5:22 PM CDTSpecial Marine WarningLOT83 min
May 18, 10:14 AM CDTSpecial Marine WarningLOT2 hr
Jun 6, 12:28 AM CDTSpecial Marine WarningLOT2 hr
Jun 6, 2:32 AM CDTSpecial Marine WarningLOT31 min
Jun 8, 5:49 PM CDTSpecial Marine WarningLOT56 min
Jun 10, 3:06 PM CDTSpecial Marine WarningLOT114 min
Jun 11, 12:58 PM CDTSpecial Marine WarningLOT2 hr
Jun 11, 3:10 PM CDTSpecial Marine WarningLOT95 min
Jun 11, 6:18 PM CDTSpecial Marine WarningLOT3 hr
Jun 11, 6:50 PM CDTSpecial Marine WarningLOT85 min
Jun 11, 8:13 PM CDTSpecial Marine WarningLOT67 min
Jun 13, 10:47 PM CDTSpecial Marine WarningLOT88 min
Jun 13, 11:43 PM CDTSpecial Marine WarningLOT92 min
Jun 17, 10:29 AM CDTSpecial Marine WarningLOT3 hr
Jun 17, 8:58 PM CDTSpecial Marine WarningLOT108 min
Jun 24, 6:38 PM CDTSpecial Marine WarningLOT2 hr
Jun 28, 4:31 PM CDTSpecial Marine WarningLOT119 min
Jul 2, 8:35 PM CDTSpecial Marine WarningLOT85 min
Jul 2, 10:06 PM CDTSpecial Marine WarningLOT3 hr
Jul 3, 1:35 AM CDTSpecial Marine WarningLOT52 min
Jul 3, 12:48 PM CDTSpecial Marine WarningLOT117 min
Jul 3, 2:40 PM CDTSpecial Marine WarningLOT60 min
Jul 3, 2:40 PM CDTSpecial Marine WarningLOT60 min
Jul 3, 9:15 PM CDTSpecial Marine WarningLOT2 hr
Jul 4, 3:12 PM CDTSpecial Marine WarningLOT2 hr
Jul 18, 12:44 PM CDTSpecial Marine WarningLOT61 min
Jul 27, 10:42 AM CDTSpecial Marine WarningLOT3 hr
Jul 27, 11:16 AM CDTSpecial Marine WarningLOT119 min
Jul 27, 1:39 PM CDTSpecial Marine WarningLOT47 min
Jul 27, 1:40 PM CDTSpecial Marine WarningLOT46 min
Jul 27, 2:56 PM CDTSpecial Marine WarningLOT94 min
Jul 27, 3:38 PM CDTSpecial Marine WarningLOT114 min
Aug 5, 4:41 PM CDTSpecial Marine WarningLOT83 min
Aug 9, 11:53 AM CDTSpecial Marine WarningLOT2 hr
Aug 9, 12:53 PM CDTSpecial Marine WarningLOT3 hr
Aug 9, 5:18 PM CDTSpecial Marine WarningLOT42 min
Aug 9, 11:10 PM CDTSpecial Marine WarningLOT95 min
Aug 9, 11:54 PM CDTSpecial Marine WarningLOT96 min
Aug 10, 12:40 AM CDTSpecial Marine WarningLOT45 min
Aug 11, 12:30 AM CDTSpecial Marine WarningLOT67 min
Aug 11, 3:34 AM CDTSpecial Marine WarningLOT86 min
Aug 11, 10:09 AM CDTSpecial Marine WarningLOT2 hr
Aug 12, 9:27 AM CDTSpecial Marine WarningLOT2 hr
Aug 16, 12:44 AM CDTSpecial Marine WarningLOT109 min
Aug 18, 7:36 PM CDTSpecial Marine WarningLOT114 min
Aug 18, 9:18 PM CDTSpecial Marine WarningLOT86 min
Sep 3, 11:19 AM CDTSpecial Marine WarningLOT37 min
Sep 4, 10:26 PM CDTSpecial Marine WarningLOT83 min
Sep 4, 10:39 PM CDTSpecial Marine WarningLOT81 min
Sep 4, 11:12 PM CDTSpecial Marine WarningLOT42 min

The busiest days

Days with the most alerts issued, by UTC date.

  1. July 3, 20266special marine warnings
  2. July 27, 20266special marine warnings
  3. March 31, 20265special marine warnings
  4. April 3, 20264special marine warnings
  5. June 11, 20264special marine warnings
  6. April 15, 20263special marine warnings
  7. April 18, 20263special marine warnings
  8. August 9, 20263special marine warnings
  9. August 10, 20263special marine warnings
  10. August 11, 20263special marine warnings
  11. September 5, 20263special marine warnings
  12. January 9, 20262special marine warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive2025

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.