Alert archive / Illinois / Lake County
Weather alerts in Lake County, Illinois, 2026
158 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Lake County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 158
- Warnings
- 39
- Watches
- 41
- Advisories
- 35
- Busiest month
- April47 alerts
- Busiest day
- April 15, 202612 alerts
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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 7, 7:15 AM CST | Dense Fog Advisory | LOT | 5 hr |
| Jan 18, 2:13 AM CST | Cold Weather Advisory | LOT | 34 hr |
| Jan 20, 4:00 AM CST | Winter Weather Advisory | LOT | 23 hr |
| Jan 21, 3:01 AM CST | Extreme Cold Watch | LOT | 24 hr |
| Jan 22, 3:12 AM CST | Cold Weather Advisory | LOT | 55 hr |
| Jan 22, 3:12 AM CST | Extreme Cold Warning | LOT | 33 hr |
| Jan 24, 1:51 AM CST | Winter Weather Advisory | LOT | 42 hr |
| Jan 25, 2:35 AM CST | Cold Weather Advisory | LOT | 32 hr |
| Jan 29, 1:29 PM CST | Winter Weather Advisory | LOT | 30 hr |
| Feb 17, 1:45 PM CST | Fire Weather Watch | LOT | 11 hr |
| Feb 18, 1:00 AM CST | Red Flag Warning | LOT | 17 hr |
| Feb 18, 1:02 AM CST | Wind Advisory | LOT | 17 hr |
| Feb 19, 1:56 PM CST | Wind Advisory | LOT | 26 hr |
| Mar 4, 1:39 AM CST | Dense Fog Advisory | LOT | 7 hr |
| Mar 4, 8:55 AM CST | Dense Fog Advisory | LOT | 2 hr |
| Mar 4, 8:34 PM CST | Dense Fog Advisory | LOT | 37 hr |
| Mar 10, 4:53 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Mar 10, 5:40 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 10, 7:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Mar 12, 1:33 AM CDT | High Wind Watch | LOT | 10 hr |
| Mar 12, 1:33 AM CDT | Wind Advisory | LOT | 40 hr |
| Mar 12, 11:28 AM CDT | High Wind Warning | LOT | 29 hr |
| Mar 14, 11:57 AM CDT | Wind Advisory | LOT | 30 hr |
| Mar 15, 9:27 AM CDT | Winter Weather Advisory | LOT | 39 hr |
| Mar 30, 9:21 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 30, 11:29 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 31, 1:54 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Apr 2, 1:32 AM CDT | Wind Advisory | LOT | 17 hr |
| Apr 2, 11:46 AM CDT | River Flood Watch | MKX | 24 hr |
| Apr 2, 1:43 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 2, 7:40 PM CDT | Tornado Warning | LOT | 35 min |
| Apr 3, 11:43 AM CDT | River Flood Warning | MKX | 6 days |
| Apr 3, 3:56 PM CDT | Flood Watch | LOT | 18 hr |
| Apr 3, 9:17 PM CDT | River Flood Warning | LOT | 8 days |
| Apr 4, 11:29 AM CDT | River Flood Watch | LOT | 57 hr |
| Apr 4, 11:29 AM CDT | River Flood Warning | LOT | 8 days |
| Apr 5, 9:01 PM CDT | River Flood Watch | LOT | 23 hr |
| Apr 6, 8:23 PM CDT | River Flood Warning | LOT | 61 hr |
| Apr 6, 8:26 PM CDT | River Flood Warning | LOT | 28 days |
| Apr 9, 9:45 AM CDT | River Flood Watch | LOT | 24 hr |
| Apr 10, 4:44 AM CDT | River Flood Watch | MKX | 29 hr |
| Apr 14, 12:19 PM CDT | River Flood Watch | MKX | 23 hr |
| Apr 14, 2:33 PM CDT | Tornado Watch | SPC | 9 hr |
| Apr 14, 7:11 PM CDT | Flood Watch | LOT | 30 hr |
| Apr 14, 8:48 PM CDT | Severe Thunderstorm Warning | LOT | 57 min |
| Apr 14, 9:28 PM CDT | Severe Thunderstorm Warning | LOT | 62 min |
| Apr 14, 10:33 PM CDT | River Flood Watch | LOT | 6 hr |
| Apr 15, 12:24 AM CDT | River Flood Watch | LOT | 21 days |
| Apr 15, 12:24 AM CDT | River Flood Watch | LOT | 6 hr |
| Apr 15, 3:51 AM CDT | Areal Flood Advisory | LOT | 3 hr |
| Apr 15, 4:22 AM CDT | River Flood Warning | LOT | 11 days |
| Apr 15, 6:19 AM CDT | River Flood Warning | LOT | 10 days |
| Apr 15, 10:32 AM CDT | River Flood Warning | LOT | 10 days |
| Apr 15, 10:50 AM CDT | River Flood Warning | MKX | 15 days |
| Apr 15, 4:49 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Apr 15, 7:55 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 15, 9:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 16, 7:01 PM CDT | Dense Fog Advisory | LOT | 15 hr |
| Apr 17, 11:48 AM CDT | Flood Watch | LOT | 15 hr |
| Apr 17, 3:31 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 17, 4:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 17, 8:04 PM CDT | Tornado Warning | LOT | 56 min |
| Apr 17, 8:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 17, 8:12 PM CDT | Flash Flood Warning | LOT | 6 hr |
| Apr 17, 8:18 PM CDT | Severe Thunderstorm Warning | LOT | 72 min |
| Apr 17, 8:36 PM CDT | Tornado Warning | LOT | 39 min |
| Apr 18, 1:54 AM CDT | Areal Flood Warning | LOT | 6 hr |
| Apr 18, 1:29 PM CDT | Frost Advisory | LOT | 20 hr |
| Apr 18, 1:29 PM CDT | Freeze Watch | LOT | 12 hr |
| Apr 18, 2:20 PM CDT | Areal Flood Warning | LOT | 13 days |
| Apr 19, 1:52 AM CDT | Freeze Warning | LOT | 30 hr |
| Apr 21, 1:07 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Apr 27, 11:18 AM CDT | Wind Advisory | LOT | 5 hr |
| Apr 27, 12:50 PM CDT | High Wind Warning | LOT | 3 hr |
| May 1, 3:32 AM CDT | Frost Advisory | LOT | 28 hr |
| May 4, 3:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 6, 1:23 PM CDT | Frost Advisory | LOT | 19 hr |
| May 18, 11:38 AM CDT | Mesoscale Discussion | SPC | 67 min |
| May 20, 3:42 AM CDT | Beach Hazards Statement | LOT | 72 hr |
| May 26, 3:04 PM CDT | Beach Hazards Statement | LOT | 53 hr |
| May 29, 3:16 AM CDT | Beach Hazards Statement | LOT | 42 hr |
| Jun 10, 2:40 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 10, 3:09 PM CDT | Severe Thunderstorm Warning | LOT | 67 min |
| Jun 10, 3:58 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 11, 10:05 AM CDT | Flood Watch | LOT | 11 hr |
| Jun 11, 1:57 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 11, 6:10 PM CDT | Severe Thunderstorm Warning | LOT | 65 min |
| Jun 11, 6:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 11, 6:28 PM CDT | Flash Flood Warning | LOT | 3 hr |
| Jun 11, 8:07 PM CDT | Severe Thunderstorm Warning | LOT | 53 min |
| Jun 11, 9:06 PM CDT | Areal Flood Advisory | LOT | 22 hr |
| Jun 16, 2:19 PM CDT | Beach Hazards Statement | LOT | 49 hr |
| Jun 17, 2:20 AM CDT | Flood Watch | LOT | 15 hr |
| Jun 17, 9:17 AM CDT | Wind Advisory | LOT | 5 hr |
| Jun 17, 9:36 PM CDT | Tornado Warning | LOT | 13 min |
| Jun 20, 3:11 PM CDT | Beach Hazards Statement | LOT | 61 hr |
| Jun 24, 12:44 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 24, 1:55 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 24, 5:28 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 24, 5:57 PM CDT | Severe Thunderstorm Warning | LOT | 48 min |
| Jun 24, 8:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 28, 2:47 AM CDT | Heat Advisory | LOT | 47 hr |
| Jun 28, 11:18 AM CDT | Extreme Heat Warning | LOT | 5 days |
| Jun 28, 4:41 PM CDT | Wind Advisory | LOT | 108 min |
| Jul 2, 2:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jul 2, 7:40 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 2, 8:58 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| Jul 2, 11:43 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 11:15 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 11:52 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 3, 1:20 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Jul 3, 5:05 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 3, 6:37 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 3, 8:32 PM CDT | Flood Watch | LOT | 4 hr |
| Jul 3, 8:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jul 18, 3:50 AM CDT | Beach Hazards Statement | LOT | 36 hr |
| Jul 21, 2:33 AM CDT | Beach Hazards Statement | LOT | 49 hr |
| Jul 27, 2:10 AM CDT | Heat Advisory | LOT | 14 hr |
| Jul 27, 3:57 AM CDT | Beach Hazards Statement | LOT | 54 hr |
| Jul 27, 7:52 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 27, 9:40 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 27, 10:57 AM CDT | Severe Thunderstorm Warning | LOT | 78 min |
| Jul 27, 11:25 AM CDT | Severe Thunderstorm Warning | LOT | 80 min |
| Jul 27, 11:42 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 27, 12:26 PM CDT | Areal Flood Advisory | LOT | 114 min |
| Jul 27, 12:41 PM CDT | Severe Thunderstorm Warning | LOT | 11 min |
| Jul 27, 3:35 PM CDT | Severe Thunderstorm Warning | LOT | 40 min |
| Jul 31, 3:32 AM CDT | Beach Hazards Statement | LOT | 3 days |
| Aug 9, 9:46 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 9, 12:43 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| Aug 9, 5:03 PM CDT | Flood Watch | LOT | 10 hr |
| Aug 9, 8:14 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 9, 8:43 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 9, 11:22 PM CDT | Severe Thunderstorm Warning | LOT | 38 min |
| Aug 10, 5:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 3:49 AM CDT | Severe Thunderstorm Warning | LOT | 27 min |
| Aug 11, 7:22 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 11, 9:00 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 11:39 AM CDT | Areal Flood Advisory | LOT | 3 hr |
| Aug 21, 2:57 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 31, 12:24 PM CDT | Heat Advisory | LOT | 33 hr |
| Aug 31, 12:24 PM CDT | Heat Advisory | LOT | 3 days |
| Sep 3, 7:56 PM CDT | Heat Advisory | LOT | 25 hr |
| Sep 4, 12:41 PM CDT | Beach Hazards Statement | LOT | 6 hr |
| Sep 4, 9:01 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 14, 3:08 AM CDT | Beach Hazards Statement | LOT | 28 hr |
| Sep 17, 2:39 PM CDT | Beach Hazards Statement | LOT | 24 hr |
| Sep 18, 1:47 PM CDT | Flood Watch | LOT | 47 hr |
| Sep 18, 3:02 PM CDT | Beach Hazards Statement | LOT | 28 hr |
| Sep 19, 3:29 AM CDT | Areal Flood Advisory | LOT | 8 hr |
| Sep 19, 9:38 AM CDT | River Flood Watch | LOT | 21 days |
| Sep 19, 9:38 AM CDT | River Flood Watch | LOT | 49 hr |
| Sep 19, 9:38 AM CDT | River Flood Watch | LOT | 21 days |
| Sep 19, 12:27 PM CDT | River Flood Watch | MKX | 22 hr |
| Sep 19, 2:50 PM CDT | Beach Hazards Statement | LOT | 5 days |
| Sep 20, 9:14 AM CDT | River Flood Warning | LOT | 21 days |
| Sep 20, 9:35 AM CDT | River Flood Warning | MKX | 6 days |
| Sep 21, 10:21 AM CDT | River Flood Warning | LOT | 5 days |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 13 |
| Tornado Warning | 4 |
| Severe Thunderstorm Watch | 12 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 29 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 2 |
| River Flood Warning | 12 |
| Flood Watch | 8 |
| River Flood Watch | 13 |
| Areal Flood Advisory | 7 |
| Winter | |
| Winter Weather Advisory | 4 |
| Heat | |
| Extreme Heat Warning | 1 |
| Heat Advisory | 5 |
| Cold | |
| Extreme Cold Warning | 1 |
| Freeze Warning | 1 |
| Extreme Cold Watch | 1 |
| Freeze Watch | 1 |
| Cold Weather Advisory | 3 |
| Frost Advisory | 3 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 1 |
| Wind Advisory | 8 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
| Coast and beach | |
| Beach Hazards Statement | 14 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe 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. Rebuilt daily.