Alert archive / Illinois / DeKalb County
Weather alerts in DeKalb County, Illinois, 2020
131 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
DeKalb County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 131
- Warnings
- 28
- Watches
- 16
- Advisories
- 44
- Busiest month
- May26 alerts
- Busiest day
- May 15, 202010 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 9, 1:36 PM CST | Winter Storm Watch | LOT | 22 hr |
| Jan 10, 4:03 AM CST | Winter Storm Warning | LOT | 44 hr |
| Jan 11, 3:10 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 12, 7:37 PM CST | Winter Weather Advisory | LOT | 7 hr |
| Jan 14, 2:33 PM CST | Winter Weather Advisory | LOT | 21 hr |
| Jan 16, 2:44 PM CST | Winter Weather Advisory | LOT | 51 hr |
| Jan 18, 2:24 PM CST | Wind Chill Advisory | LOT | 20 hr |
| Jan 24, 3:12 AM CST | Winter Weather Advisory | LOT | 35 hr |
| Jan 24, 8:34 AM CST | Dense Fog Advisory | LOT | 11 hr |
| Feb 8, 1:38 PM CST | Winter Weather Advisory | LOT | 26 hr |
| Feb 11, 2:38 PM CST | Winter Weather Advisory | LOT | 52 hr |
| Feb 13, 2:07 PM CST | Wind Chill Advisory | LOT | 20 hr |
| Feb 17, 8:24 PM CST | Dense Fog Advisory | LOT | 6 hr |
| Feb 23, 2:11 PM CST | Winter Storm Watch | LOT | 48 hr |
| Mar 5, 2:10 PM CST | Wind Advisory | LOT | 22 hr |
| Mar 19, 6:41 AM CDT | Dense Fog Advisory | LOT | 3 hr |
| Mar 23, 5:21 AM CDT | Dense Fog Advisory | LOT | 5 hr |
| Mar 25, 4:39 AM CDT | Dense Fog Advisory | LOT | 6 hr |
| Mar 28, 12:52 AM CDT | Areal Flood Advisory | LOT | 4 hr |
| Mar 28, 2:39 AM CDT | River Flood Advisory | LOT | 36 hr |
| Mar 28, 2:43 PM CDT | Wind Advisory | LOT | 29 hr |
| Mar 28, 8:06 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Mar 28, 8:41 PM CDT | Tornado Watch | SPC | 3 hr |
| Mar 28, 10:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Apr 6, 11:03 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 7, 3:06 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Apr 7, 5:07 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Apr 7, 5:26 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 7, 7:22 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Apr 7, 7:27 PM CDT | Severe Thunderstorm Warning | LOT | 48 min |
| Apr 7, 8:27 PM CDT | Special Weather Statement | LOT | 18 min |
| Apr 7, 8:38 PM CDT | Severe Thunderstorm Warning | LOT | 25 min |
| Apr 8, 4:16 AM CDT | Dense Fog Advisory | LOT | 5 hr |
| Apr 8, 4:37 PM CDT | Severe Thunderstorm Warning | LOT | 23 min |
| Apr 8, 5:08 PM CDT | Special Weather Statement | LOT | 37 min |
| Apr 9, 3:18 AM CDT | Wind Advisory | LOT | 16 hr |
| Apr 12, 3:57 AM CDT | Wind Advisory | LOT | 36 hr |
| Apr 15, 5:22 AM CDT | Winter Weather Advisory | LOT | 5 hr |
| Apr 16, 3:28 AM CDT | Winter Weather Advisory | LOT | 32 hr |
| Apr 20, 7:06 PM CDT | Special Weather Statement | LOT | 54 min |
| Apr 28, 4:29 PM CDT | Special Weather Statement | LOT | 16 min |
| Apr 28, 4:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Apr 29, 3:55 AM CDT | Flood Watch | LOT | 26 hr |
| May 7, 3:33 AM CDT | Freeze Watch | LOT | 24 hr |
| May 8, 3:56 AM CDT | Freeze Warning | LOT | 27 hr |
| May 11, 2:45 PM CDT | Frost Advisory | LOT | 17 hr |
| May 14, 12:06 PM CDT | Flash Flood Watch | LOT | 17 hr |
| May 14, 6:15 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 14, 10:47 PM CDT | Areal Flood Advisory | LOT | 4 hr |
| May 14, 10:57 PM CDT | Severe Thunderstorm Warning | LOT | 48 min |
| May 14, 11:40 PM CDT | Severe Thunderstorm Warning | LOT | 50 min |
| May 14, 11:53 PM CDT | Tornado Warning | LOT | 22 min |
| May 15, 12:11 AM CDT | Flash Flood Warning | LOT | 4 hr |
| May 15, 1:20 AM CDT | Areal Flood Warning | LOT | 9 hr |
| May 15, 1:50 AM CDT | River Flood Advisory | LOT | 36 hr |
| May 15, 4:05 AM CDT | Areal Flood Warning | LOT | 6 hr |
| May 15, 10:14 AM CDT | River Flood Warning | LOT | 18 hr |
| May 15, 10:41 AM CDT | Areal Flood Advisory | LOT | 6 hr |
| May 16, 2:47 PM CDT | Flash Flood Watch | LOT | 32 hr |
| May 16, 7:26 PM CDT | River Flood Advisory | LOT | 48 hr |
| May 17, 1:44 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 17, 2:04 PM CDT | Areal Flood Advisory | LOT | 6 hr |
| May 17, 10:10 PM CDT | Areal Flood Warning | LOT | 30 hr |
| May 23, 12:33 PM CDT | Tornado Watch | SPC | 8 hr |
| May 23, 2:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| May 23, 6:04 PM CDT | Severe Thunderstorm Warning | LOT | 56 min |
| May 23, 6:13 PM CDT | Tornado Warning | LOT | 47 min |
| May 23, 6:48 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| May 28, 4:53 PM CDT | Special Weather Statement | LOT | 22 min |
| Jun 5, 12:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jun 9, 2:33 AM CDT | Wind Advisory | LOT | 21 hr |
| Jun 9, 6:20 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Jun 22, 12:48 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 12:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 1:38 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 26, 3:39 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 5:37 PM CDT | Severe Thunderstorm Warning | LOT | 68 min |
| Jun 26, 6:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 26, 6:41 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| Jun 26, 6:52 PM CDT | Special Weather Statement | LOT | 23 min |
| Jun 26, 7:01 PM CDT | Severe Thunderstorm Warning | LOT | 44 min |
| Jun 29, 5:00 PM CDT | Areal Flood Advisory | LOT | 2 hr |
| Jul 7, 7:30 PM CDT | Special Weather Statement | LOT | 45 min |
| Jul 9, 2:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 9, 5:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 9, 6:11 PM CDT | Special Weather Statement | LOT | 64 min |
| Jul 9, 8:10 PM CDT | Special Weather Statement | LOT | 65 min |
| Jul 11, 3:58 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 11, 8:25 PM CDT | Severe Thunderstorm Warning | LOT | 80 min |
| Jul 12, 2:58 AM CDT | Special Weather Statement | LOT | 47 min |
| Jul 12, 3:53 AM CDT | Special Weather Statement | LOT | 52 min |
| Jul 17, 3:36 AM CDT | Heat Advisory | LOT | 40 hr |
| Jul 18, 11:00 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 12:44 PM CDT | Severe Thunderstorm Warning | LOT | 38 min |
| Jul 19, 5:09 AM CDT | Special Weather Statement | LOT | 36 min |
| Jul 19, 10:12 AM CDT | Mesoscale Discussion | SPC | 93 min |
| Jul 26, 5:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Aug 10, 10:42 AM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 10, 11:26 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 10, 1:36 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Aug 10, 2:03 PM CDT | Severe Thunderstorm Warning | LOT | 87 min |
| Aug 10, 3:11 PM CDT | Tornado Warning | LOT | 34 min |
| Aug 10, 3:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Aug 10, 4:23 PM CDT | High Wind Warning | LOT | 90 min |
| Aug 15, 4:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Aug 25, 3:32 PM CDT | Flash Flood Warning | LOT | 3 min |
| Aug 28, 5:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Sep 6, 4:14 AM CDT | Special Weather Statement | LOT | 46 min |
| Sep 6, 9:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Oct 4, 3:46 AM CDT | Frost Advisory | LOT | 28 hr |
| Oct 14, 3:33 AM CDT | Wind Advisory | LOT | 15 hr |
| Oct 14, 7:41 PM CDT | Freeze Watch | LOT | 7 hr |
| Oct 15, 2:35 AM CDT | Freeze Warning | LOT | 30 hr |
| Oct 16, 2:40 PM CDT | Wind Advisory | LOT | 28 hr |
| Oct 16, 2:52 PM CDT | Fire Weather Watch | LOT | 12 hr |
| Oct 16, 2:52 PM CDT | Red Flag Warning | LOT | 29 hr |
| Oct 22, 6:29 AM CDT | Areal Flood Advisory | LOT | 3 hr |
| Oct 31, 10:44 AM CDT | Wind Advisory | LOT | 30 hr |
| Nov 10, 2:58 AM CST | Wind Advisory | LOT | 24 hr |
| Nov 10, 1:28 PM CST | Mesoscale Discussion | SPC | 92 min |
| Nov 10, 2:05 PM CST | Tornado Watch | SPC | 6 hr |
| Nov 10, 3:20 PM CST | Severe Thunderstorm Warning | LOT | 70 min |
| Nov 10, 4:10 PM CST | Severe Thunderstorm Warning | LOT | 80 min |
| Nov 14, 3:04 AM CST | Wind Advisory | LOT | 41 hr |
| Nov 18, 2:15 PM CST | Wind Advisory | LOT | 26 hr |
| Nov 23, 2:24 PM CST | Winter Weather Advisory | LOT | 19 hr |
| Dec 23, 2:32 AM CST | Wind Advisory | LOT | 25 hr |
| Dec 28, 3:04 PM CST | Winter Storm Warning | LOT | 42 hr |
| Dec 28, 3:04 PM CST | Winter Weather Advisory | LOT | 39 hr |
| Dec 29, 2:17 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 30, 1:15 AM CST | Mesoscale Discussion | SPC | 6 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.