Alert archive / Illinois / Special Marine Warnings / 2018
Special Marine Warnings in Illinois, May 2018
9 special marine warnings in May 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 May 2018. Tap one for its archive.
- Special Marine Warnings
- 9
- Busiest day
- May 3, 20183 special marine warnings
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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 4:43 PM CDT | Special Marine Warning | LOT | 47 min | |
| May 2, 4:55 PM CDT | Special Marine Warning | LOT | 35 min | |
| May 2, 7:21 PM CDT | Special Marine Warning | LOT | 84 min | |
| May 2, 8:41 PM CDT | Special Marine Warning | LOT | 3 hr | |
| May 2, 11:41 PM CDT | Special Marine Warning | LOT | 2 hr | |
| May 9, 4:52 PM CDT | Special Marine Warning | LOT | 53 min | |
| May 9, 5:26 PM CDT | Special Marine Warning | LOT | 64 min | |
| May 14, 5:29 PM CDT | Special Marine Warning | LOT | 3 hr | |
| May 31, 2:57 PM CDT | Special Marine Warning | LOT | 34 min |
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.