Alert archive / Illinois / Brown County
Weather alerts in Brown County, Illinois, 2026
89 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Brown County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 89
- Warnings
- 25
- Watches
- 21
- Advisories
- 19
- Busiest month
- June28 alerts
- Busiest day
- June 17, 20269 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 18, 1:59 AM CST | Cold Weather Advisory | LSX | 32 hr |
| Jan 22, 2:29 AM CST | Cold Weather Advisory | LSX | 58 hr |
| Jan 23, 2:24 AM CST | Winter Weather Advisory | LSX | 55 hr |
| Jan 24, 1:38 PM CST | Cold Weather Advisory | LSX | 46 hr |
| Feb 26, 2:05 PM CST | Fire Weather Watch | LSX | 10 hr |
| Feb 27, 12:28 AM CST | Red Flag Warning | LSX | 18 hr |
| Mar 4, 8:42 PM CST | Dense Fog Advisory | LSX | 9 hr |
| Mar 10, 5:41 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 10, 5:57 PM CDT | Tornado Watch | SPC | 6 hr |
| Mar 10, 9:44 PM CDT | Severe Thunderstorm Warning | LSX | 31 min |
| Mar 10, 10:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Mar 11, 1:59 AM CDT | Mesoscale Discussion | SPC | 91 min |
| Mar 12, 3:05 AM CDT | Wind Advisory | LSX | 30 hr |
| Mar 14, 10:45 AM CDT | Wind Advisory | LSX | 49 hr |
| Mar 15, 2:37 PM CDT | Winter Weather Advisory | LSX | 16 hr |
| Mar 26, 2:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Mar 26, 4:15 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Mar 26, 7:21 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Mar 26, 10:27 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Mar 27, 11:40 AM CDT | Freeze Warning | LSX | 21 hr |
| Mar 31, 2:44 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 2, 3:46 AM CDT | Wind Advisory | LSX | 15 hr |
| Apr 2, 1:43 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 2, 3:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 3, 1:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 3, 2:20 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 3, 5:15 PM CDT | Severe Thunderstorm Warning | LSX | 25 min |
| Apr 3, 11:52 PM CDT | River Flood Warning | ILX | 39 days |
| Apr 14, 4:23 AM CDT | Severe Thunderstorm Warning | LSX | 39 min |
| Apr 15, 6:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 15, 6:50 PM CDT | Tornado Watch | SPC | 4 hr |
| Apr 17, 7:57 AM CDT | Flood Watch | LSX | 19 hr |
| Apr 17, 3:04 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Apr 17, 3:31 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 17, 4:22 PM CDT | Severe Thunderstorm Warning | LSX | 38 min |
| Apr 17, 7:21 PM CDT | Severe Thunderstorm Warning | LSX | 54 min |
| Apr 17, 8:12 PM CDT | Severe Thunderstorm Warning | LSX | 17 min |
| Apr 27, 8:31 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 27, 4:20 PM CDT | Severe Thunderstorm Warning | LSX | 55 min |
| Apr 27, 4:34 PM CDT | Tornado Warning | LSX | 29 min |
| Apr 27, 5:20 PM CDT | Flash Flood Warning | LSX | 3 hr |
| Apr 28, 11:25 AM CDT | River Flood Warning | LSX | 25 hr |
| May 3, 8:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| May 9, 12:15 AM CDT | Dense Fog Advisory | LSX | 7 hr |
| May 18, 6:51 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 7, 1:26 PM CDT | Flood Watch | LSX | 40 hr |
| Jun 8, 11:44 AM CDT | Heat Advisory | LSX | 32 hr |
| Jun 10, 10:44 AM CDT | Flood Watch | LSX | 16 hr |
| Jun 10, 11:09 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 10, 4:01 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 10, 9:22 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jun 11, 7:31 AM CDT | Tornado Watch | SPC | 7 hr |
| Jun 11, 9:53 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 11, 11:38 AM CDT | River Flood Warning | ILX | 38 days |
| Jun 11, 11:50 AM CDT | Flood Watch | LSX | 7 hr |
| Jun 11, 1:57 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 11, 3:07 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 13, 10:22 AM CDT | Areal Flood Advisory | LSX | 3 hr |
| Jun 14, 9:49 AM CDT | River Flood Warning | LSX | 26 hr |
| Jun 16, 12:39 PM CDT | Wind Advisory | LSX | 31 hr |
| Jun 17, 7:49 AM CDT | Tornado Watch | SPC | 6 hr |
| Jun 17, 8:16 AM CDT | Mesoscale Discussion | SPC | 59 min |
| Jun 17, 9:01 AM CDT | Severe Thunderstorm Warning | LSX | 30 min |
| Jun 17, 1:03 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 17, 2:14 PM CDT | Tornado Watch | SPC | 11 hr |
| Jun 17, 4:00 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jun 17, 4:28 PM CDT | Severe Thunderstorm Warning | LSX | 47 min |
| Jun 17, 4:56 PM CDT | Severe Thunderstorm Warning | LSX | 49 min |
| Jun 17, 5:06 PM CDT | Tornado Warning | LSX | 39 min |
| Jun 18, 11:43 AM CDT | River Flood Warning | LSX | 18 days |
| Jun 20, 1:28 AM CDT | Flood Watch | LSX | 45 hr |
| Jun 27, 1:59 AM CDT | Heat Advisory | LSX | 71 hr |
| Jun 27, 1:15 PM CDT | Extreme Heat Warning | LSX | 7 days |
| Jul 2, 11:50 AM CDT | Heat Advisory | LSX | 54 hr |
| Jul 20, 8:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jul 20, 8:35 PM CDT | Severe Thunderstorm Warning | LSX | 40 min |
| Jul 24, 1:12 AM CDT | Extreme Heat Watch | LSX | 11 hr |
| Jul 24, 12:15 PM CDT | Heat Advisory | LSX | 47 hr |
| Jul 26, 12:40 AM CDT | Extreme Heat Warning | LSX | 66 hr |
| Aug 5, 1:57 AM CDT | Flood Watch | LSX | 35 hr |
| Aug 9, 1:05 AM CDT | Heat Advisory | LSX | 8 days |
| Aug 14, 9:48 PM CDT | Flood Watch | LSX | 12 hr |
| Aug 14, 11:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 15, 10:12 AM CDT | River Flood Warning | ILX | 14 days |
| Aug 16, 12:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 30, 12:27 PM CDT | Heat Advisory | LSX | 3 days |
| Sep 3, 12:12 AM CDT | Extreme Heat Warning | LSX | 68 hr |
| Sep 10, 9:56 PM CDT | Dense Fog Advisory | LSX | 12 hr |
| Sep 15, 2:35 PM CDT | Mesoscale Discussion | SPC | 115 min |
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 | 11 |
| Tornado Warning | 2 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 10 |
| Mesoscale Discussion | 24 |
| Flooding | |
| Flash Flood Warning | 1 |
| River Flood Warning | 6 |
| Flood Watch | 7 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Weather Advisory | 2 |
| Heat | |
| Extreme Heat Warning | 3 |
| Extreme Heat Watch | 1 |
| Heat Advisory | 6 |
| Cold | |
| Freeze Warning | 1 |
| Cold Weather Advisory | 3 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
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.