Alert archive / Illinois / Mercer County
Weather alerts in Mercer County, Illinois, 2020
137 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Mercer County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 137
- Warnings
- 42
- Watches
- 25
- Advisories
- 28
- Busiest month
- July24 alerts
- Busiest day
- April 8, 20209 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, 3:33 AM CST | Wind Advisory | DVN | 11 hr |
| Jan 9, 11:21 AM CST | Winter Storm Watch | DVN | 16 hr |
| Jan 10, 3:17 AM CST | Winter Storm Warning | DVN | 43 hr |
| Jan 14, 2:11 PM CST | Winter Weather Advisory | DVN | 24 hr |
| Jan 15, 3:43 PM CST | Winter Storm Watch | DVN | 23 hr |
| Jan 16, 2:17 PM CST | Winter Storm Warning | DVN | 52 hr |
| Jan 18, 3:13 PM CST | Wind Chill Advisory | DVN | 21 hr |
| Jan 23, 9:06 PM CST | Winter Weather Advisory | DVN | 15 hr |
| Jan 24, 8:29 AM CST | Dense Fog Advisory | DVN | 7 hr |
| Feb 11, 3:00 PM CST | Winter Weather Advisory | DVN | 45 hr |
| Feb 13, 10:05 AM CST | Wind Chill Advisory | DVN | 24 hr |
| Feb 17, 5:27 PM CST | Dense Fog Advisory | DVN | 7 hr |
| Feb 23, 10:35 AM CST | Winter Storm Watch | DVN | 28 hr |
| Feb 24, 2:23 PM CST | Winter Weather Advisory | DVN | 28 hr |
| Mar 4, 2:55 PM CST | Wind Advisory | DVN | 36 hr |
| Mar 4, 2:56 PM CST | Fire Weather Watch | DVN | 12 hr |
| Mar 5, 2:56 AM CST | Red Flag Warning | DVN | 15 hr |
| Mar 17, 10:55 AM CDT | River Flood Watch | DVN | 21 days |
| Mar 17, 8:31 PM CDT | River Flood Watch | DVN | 21 days |
| Mar 18, 11:02 AM CDT | River Flood Watch | DVN | 21 days |
| Mar 18, 8:50 PM CDT | River Flood Warning | DVN | 38 days |
| Mar 18, 8:50 PM CDT | River Flood Warning | DVN | 36 days |
| Mar 18, 8:50 PM CDT | River Flood Warning | DVN | 37 days |
| Mar 25, 4:41 AM CDT | Dense Fog Advisory | DVN | 5 hr |
| Mar 27, 11:51 PM CDT | Flash Flood Warning | DVN | 4 hr |
| Mar 28, 1:34 AM CDT | Mesoscale Discussion | SPC | 56 min |
| Mar 28, 4:49 AM CDT | Special Weather Statement | DVN | 26 min |
| Mar 28, 2:45 PM CDT | Tornado Watch | SPC | 6 hr |
| Mar 28, 5:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Mar 28, 7:14 PM CDT | Tornado Warning | DVN | 31 min |
| Mar 28, 9:26 PM CDT | Wind Advisory | DVN | 22 hr |
| Apr 7, 5:07 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Apr 7, 7:22 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Apr 7, 9:27 PM CDT | Severe Thunderstorm Warning | DVN | 33 min |
| Apr 7, 9:40 PM CDT | Severe Thunderstorm Warning | DVN | 35 min |
| Apr 7, 9:57 PM CDT | Severe Thunderstorm Warning | DVN | 33 min |
| Apr 7, 10:09 PM CDT | Severe Thunderstorm Warning | DVN | 36 min |
| Apr 7, 10:43 PM CDT | Severe Thunderstorm Warning | DVN | 17 min |
| Apr 8, 1:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Apr 8, 3:08 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 8, 4:09 PM CDT | Severe Thunderstorm Warning | DVN | 25 min |
| Apr 9, 2:52 AM CDT | Wind Advisory | DVN | 16 hr |
| Apr 12, 3:42 AM CDT | Wind Advisory | DVN | 36 hr |
| Apr 15, 3:13 PM CDT | Winter Storm Watch | DVN | 11 hr |
| Apr 16, 2:12 AM CDT | Winter Storm Warning | DVN | 29 hr |
| Apr 23, 4:11 PM CDT | Special Weather Statement | DVN | 34 min |
| Apr 23, 4:49 PM CDT | Special Weather Statement | DVN | 56 min |
| Apr 28, 3:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| May 7, 4:00 AM CDT | Freeze Watch | DVN | 23 hr |
| May 8, 3:16 AM CDT | Freeze Warning | DVN | 29 hr |
| May 10, 2:36 PM CDT | Frost Advisory | DVN | 16 hr |
| May 14, 11:38 AM CDT | Flash Flood Watch | DVN | 19 hr |
| May 14, 5:19 PM CDT | Mesoscale Discussion | SPC | 116 min |
| May 14, 6:15 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 14, 8:36 PM CDT | Severe Thunderstorm Warning | DVN | 39 min |
| May 14, 9:12 PM CDT | Severe Thunderstorm Warning | DVN | 33 min |
| May 14, 9:38 PM CDT | Mesoscale Discussion | SPC | 52 min |
| May 23, 10:28 AM CDT | Severe Thunderstorm Warning | DVN | 25 min |
| May 23, 11:29 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 23, 12:33 PM CDT | Tornado Watch | SPC | 8 hr |
| Jun 3, 7:30 AM CDT | Special Weather Statement | DVN | 45 min |
| Jun 3, 9:17 AM CDT | Special Weather Statement | DVN | 58 min |
| Jun 3, 6:37 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 4, 8:56 AM CDT | River Flood Warning | DVN | 5 days |
| Jun 5, 10:36 AM CDT | River Flood Warning | DVN | 4 days |
| Jun 8, 3:23 AM CDT | Flash Flood Watch | DVN | 40 hr |
| Jun 9, 9:35 PM CDT | River Flood Warning | DVN | 21 days |
| Jun 19, 6:59 PM CDT | Special Weather Statement | DVN | 46 min |
| Jun 19, 7:51 PM CDT | Special Weather Statement | DVN | 39 min |
| Jun 20, 5:18 PM CDT | Special Weather Statement | DVN | 27 min |
| Jun 20, 5:55 PM CDT | Special Weather Statement | DVN | 35 min |
| Jun 22, 5:24 AM CDT | Special Weather Statement | DVN | 66 min |
| Jun 22, 6:12 AM CDT | Special Weather Statement | DVN | 63 min |
| Jun 26, 1:38 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 26, 5:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jun 26, 8:44 PM CDT | Special Weather Statement | DVN | 61 min |
| Jun 26, 9:06 PM CDT | River Flood Watch | DVN | 62 hr |
| Jun 29, 10:35 AM CDT | River Flood Warning | DVN | 32 hr |
| Jul 7, 2:38 PM CDT | Heat Advisory | DVN | 28 hr |
| Jul 9, 10:24 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 9, 11:05 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 9, 2:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 9, 5:08 PM CDT | Severe Thunderstorm Warning | DVN | 52 min |
| Jul 9, 5:35 PM CDT | Severe Thunderstorm Warning | DVN | 40 min |
| Jul 9, 5:39 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 9, 6:06 PM CDT | Severe Thunderstorm Warning | DVN | 39 min |
| Jul 9, 6:09 PM CDT | Severe Thunderstorm Warning | DVN | 51 min |
| Jul 11, 9:36 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 11, 10:04 AM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 11, 3:58 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 11, 6:00 PM CDT | Severe Thunderstorm Warning | DVN | 27 min |
| Jul 11, 6:46 PM CDT | Severe Thunderstorm Warning | DVN | 44 min |
| Jul 11, 6:57 PM CDT | Severe Thunderstorm Warning | DVN | 48 min |
| Jul 11, 7:17 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jul 11, 7:27 PM CDT | Severe Thunderstorm Warning | DVN | 48 min |
| Jul 17, 3:04 AM CDT | Heat Advisory | DVN | 41 hr |
| Jul 19, 8:27 AM CDT | Severe Thunderstorm Warning | DVN | 48 min |
| Jul 19, 8:47 AM CDT | Severe Thunderstorm Warning | DVN | 43 min |
| Jul 21, 3:11 PM CDT | Special Weather Statement | DVN | 64 min |
| Jul 21, 3:40 PM CDT | Special Weather Statement | DVN | 65 min |
| Jul 25, 2:30 AM CDT | Heat Advisory | DVN | 41 hr |
| Jul 26, 5:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Aug 2, 2:48 PM CDT | Special Weather Statement | DVN | 27 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, 12:42 PM CDT | Severe Thunderstorm Warning | DVN | 48 min |
| Aug 10, 1:15 PM CDT | Severe Thunderstorm Warning | DVN | 60 min |
| Aug 10, 1:23 PM CDT | Severe Thunderstorm Warning | DVN | 52 min |
| Aug 10, 1:36 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Aug 15, 10:34 AM CDT | Special Weather Statement | DVN | 41 min |
| Aug 24, 12:18 PM CDT | Heat Advisory | DVN | 7 hr |
| Aug 25, 3:07 AM CDT | Heat Advisory | DVN | 16 hr |
| Aug 28, 2:56 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Aug 28, 5:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Sep 6, 2:32 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Sep 6, 2:53 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 6, 5:30 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Sep 6, 7:19 AM CDT | Special Weather Statement | DVN | 26 min |
| Sep 11, 2:28 PM CDT | Flash Flood Watch | DVN | 15 hr |
| Oct 4, 2:54 AM CDT | Frost Advisory | DVN | 29 hr |
| Oct 14, 4:19 AM CDT | Wind Advisory | DVN | 15 hr |
| Oct 15, 3:15 AM CDT | Freeze Warning | DVN | 29 hr |
| Oct 16, 1:43 PM CDT | Wind Advisory | DVN | 28 hr |
| Oct 22, 2:35 AM CDT | Dense Fog Advisory | DVN | 9 hr |
| Nov 10, 2:41 AM CST | Wind Advisory | DVN | 17 hr |
| Nov 10, 11:22 AM CST | Severe Thunderstorm Watch | SPC | 7 hr |
| Nov 10, 1:28 PM CST | Severe Thunderstorm Warning | DVN | 47 min |
| Nov 10, 1:48 PM CST | Mesoscale Discussion | SPC | 87 min |
| Nov 10, 1:49 PM CST | Tornado Warning | DVN | 26 min |
| Nov 10, 1:57 PM CST | Tornado Warning | DVN | 15 min |
| Nov 10, 2:11 PM CST | Severe Thunderstorm Warning | DVN | 34 min |
| Nov 14, 3:35 AM CST | Wind Advisory | DVN | 38 hr |
| Dec 23, 3:43 AM CST | Wind Advisory | DVN | 23 hr |
| Dec 28, 3:19 AM CST | Winter Storm Watch | DVN | 17 hr |
| Dec 28, 3:15 PM CST | Winter Storm Warning | DVN | 38 hr |
| Dec 28, 3:15 PM CST | Winter Weather Advisory | DVN | 38 hr |
| Dec 29, 2:17 PM CST | Mesoscale Discussion | SPC | 4 hr |
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 | 24 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 9 |
| Tornado Watch | 2 |
| Mesoscale Discussion | 25 |
| Special Weather Statement | 17 |
| Flooding | |
| Flash Flood Warning | 1 |
| River Flood Warning | 7 |
| Flash Flood Watch | 3 |
| River Flood Watch | 4 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 5 |
| Winter Weather Advisory | 5 |
| Heat | |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 10 |
| Fire | |
| Red Flag Warning | 1 |
| Fire Weather Watch | 1 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
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.