Alert archive / Illinois / McDonough County
Weather alerts in McDonough County, Illinois, 2024
137 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
McDonough County and its neighbors
Each county as a circle sized by its count in 2024. Tap one for its archive.
- Alerts
- 137
- Warnings
- 36
- Watches
- 24
- Advisories
- 36
- Busiest month
- July32 alerts
- Busiest day
- July 30, 202410 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 3 tornado warnings covering McDonough County in 2024 had a tornado report inside them; 4 of 6 tornado reports fell inside a warning, on average 6 minutes after it went out.
McDonough County, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 1 | 67% | 6 | 67% | 6 min |
| Severe thunderstorm warnings | 22 | 15 | 32% | 22 | 86% | 27 min |
| Flash flood warnings | 2 | 1 | 50% | 1 | 100% | 194 min |
Each office's whole area, 2024
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Quad Cities, IA: tornado warnings | 66 | 18 | 73% | 57 | 72% | 17 min |
| NWS Quad Cities, IA: severe thunderstorm warnings | 364 | 205 | 44% | 646 | 82% | 25 min |
| NWS Quad Cities, IA: flash flood warnings | 30 | 9 | 70% | 23 | 83% | 59 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
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, 2:44 AM CST | Winter Storm Watch | DVN | 24 hr |
| Jan 8, 2:43 AM CST | Winter Storm Warning | DVN | 48 hr |
| Jan 11, 2:14 AM CST | Winter Weather Advisory | DVN | 3 days |
| Jan 11, 3:03 PM CST | Wind Chill Watch | DVN | 47 hr |
| Jan 13, 3:19 AM CST | Wind Chill Warning | DVN | 3 days |
| Jan 15, 2:02 PM CST | Wind Chill Advisory | DVN | 43 hr |
| Jan 18, 2:37 AM CST | Wind Chill Advisory | DVN | 33 hr |
| Jan 18, 2:37 AM CST | Winter Weather Advisory | DVN | 27 hr |
| Jan 19, 2:16 AM CST | Wind Chill Advisory | DVN | 34 hr |
| Jan 20, 2:01 AM CST | Wind Chill Advisory | DVN | 33 hr |
| Jan 21, 2:29 AM CST | Winter Weather Advisory | DVN | 60 hr |
| Jan 22, 2:08 AM CST | Winter Weather Advisory | DVN | 36 hr |
| Jan 22, 3:27 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 23, 1:29 PM CST | Dense Fog Advisory | DVN | 20 hr |
| Jan 24, 3:57 PM CST | Dense Fog Advisory | DVN | 44 hr |
| Jan 26, 1:30 PM CST | Dense Fog Advisory | DVN | 26 hr |
| Jan 28, 1:49 PM CST | Dense Fog Advisory | DVN | 22 hr |
| Feb 8, 2:25 AM CST | Wind Advisory | DVN | 16 hr |
| Feb 16, 3:05 AM CST | Winter Weather Advisory | DVN | 11 hr |
| Feb 25, 1:27 PM CST | Red Flag Warning | DVN | 29 hr |
| Feb 27, 1:58 AM CST | Wind Advisory | DVN | 28 hr |
| Mar 2, 1:41 PM CST | Red Flag Warning | DVN | 28 hr |
| Mar 3, 8:19 AM CST | Wind Advisory | DVN | 10 hr |
| Mar 4, 1:25 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Mar 13, 10:44 PM CDT | Special Weather Statement | DVN | 61 min |
| Mar 13, 11:00 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 14, 2:30 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Mar 14, 4:15 AM CDT | Severe Thunderstorm Warning | DVN | 30 min |
| Mar 24, 2:00 PM CDT | Wind Advisory | DVN | 23 hr |
| Mar 31, 4:51 PM CDT | Severe Thunderstorm Warning | DVN | 54 min |
| Mar 31, 5:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 1, 8:59 PM CDT | River Flood Watch | DVN | 37 hr |
| Apr 2, 2:24 PM CDT | Wind Advisory | DVN | 30 hr |
| Apr 16, 12:06 PM CDT | Tornado Watch | SPC | 10 hr |
| Apr 16, 1:38 PM CDT | Severe Thunderstorm Warning | DVN | 37 min |
| Apr 16, 1:56 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Apr 16, 7:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Apr 16, 8:01 PM CDT | Severe Thunderstorm Warning | DVN | 44 min |
| Apr 18, 1:59 PM CDT | Special Weather Statement | DVN | 61 min |
| Apr 20, 1:43 PM CDT | Freeze Warning | DVN | 18 hr |
| Apr 21, 2:15 PM CDT | Frost Advisory | DVN | 18 hr |
| Apr 26, 9:00 PM CDT | River Flood Warning | DVN | 5 days |
| Apr 27, 1:12 PM CDT | Flood Watch | DVN | 13 hr |
| Apr 27, 5:58 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 27, 9:15 PM CDT | Mesoscale Discussion | SPC | 60 min |
| May 2, 3:35 PM CDT | Special Weather Statement | DVN | 25 min |
| May 2, 3:42 PM CDT | Severe Thunderstorm Warning | DVN | 33 min |
| May 2, 4:35 PM CDT | Severe Thunderstorm Warning | DVN | 25 min |
| May 2, 5:09 PM CDT | Severe Thunderstorm Warning | DVN | 51 min |
| May 2, 5:52 PM CDT | Severe Thunderstorm Warning | DVN | 23 min |
| May 2, 6:23 PM CDT | Special Weather Statement | DVN | 67 min |
| May 2, 6:37 PM CDT | Flash Flood Warning | DVN | 4 hr |
| May 4, 1:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| May 17, 2:44 AM CDT | Dense Fog Advisory | DVN | 6 hr |
| May 21, 5:56 PM CDT | Tornado Watch | SPC | 6 hr |
| May 24, 6:07 AM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| May 24, 10:03 AM CDT | Severe Thunderstorm Warning | DVN | 42 min |
| May 24, 11:37 AM CDT | Tornado Warning | DVN | 38 min |
| May 24, 12:08 PM CDT | Tornado Warning | DVN | 34 min |
| May 24, 12:19 PM CDT | Severe Thunderstorm Warning | DVN | 30 min |
| May 24, 2:39 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
| May 27, 5:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 13, 2:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 13, 2:59 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jun 13, 5:18 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 13, 6:08 PM CDT | Severe Thunderstorm Warning | DVN | 52 min |
| Jun 13, 6:43 PM CDT | Severe Thunderstorm Warning | DVN | 47 min |
| Jun 13, 6:52 PM CDT | Tornado Warning | DVN | 23 min |
| Jun 13, 7:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 16, 12:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 17, 2:04 AM CDT | Heat Advisory | DVN | 42 hr |
| Jun 22, 2:55 AM CDT | Heat Advisory | DVN | 16 hr |
| Jun 22, 6:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 7:36 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 22, 10:43 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 11:10 AM CDT | Flood Watch | DVN | 15 hr |
| Jun 25, 5:17 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 2, 2:04 AM CDT | Flood Watch | DVN | 23 hr |
| Jul 2, 3:14 PM CDT | Tornado Watch | SPC | 7 hr |
| Jul 7, 5:43 PM CDT | Special Weather Statement | DVN | 47 min |
| Jul 10, 6:24 PM CDT | Special Weather Statement | DVN | 66 min |
| Jul 12, 1:46 PM CDT | Heat Advisory | DVN | 30 hr |
| Jul 14, 2:20 AM CDT | Heat Advisory | DVN | 19 hr |
| Jul 15, 2:33 AM CDT | Heat Advisory | DVN | 17 hr |
| Jul 15, 1:59 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 15, 3:18 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 15, 5:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 15, 7:44 PM CDT | Severe Thunderstorm Warning | DVN | 46 min |
| Jul 15, 9:17 PM CDT | Special Weather Statement | DVN | 28 min |
| Jul 15, 11:01 PM CDT | Flash Flood Warning | DVN | 6 hr |
| Jul 28, 11:12 PM CDT | Flood Watch | DVN | 8 hr |
| Jul 29, 2:52 AM CDT | Heat Advisory | DVN | 17 hr |
| Jul 29, 4:19 AM CDT | Special Weather Statement | DVN | 41 min |
| Jul 30, 2:32 AM CDT | Heat Advisory | DVN | 8 hr |
| Jul 30, 4:02 AM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 30, 4:07 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 30, 5:41 AM CDT | Severe Thunderstorm Warning | DVN | 49 min |
| Jul 30, 5:43 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 30, 6:07 AM CDT | Severe Thunderstorm Warning | DVN | 53 min |
| Jul 30, 12:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 30, 2:15 PM CDT | Flood Watch | DVN | 44 hr |
| Jul 30, 3:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 30, 5:35 PM CDT | Special Weather Statement | DVN | 55 min |
| Jul 31, 2:31 AM CDT | Mesoscale Discussion | SPC | 119 min |
| Jul 31, 3:46 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 31, 5:28 AM CDT | Severe Thunderstorm Warning | DVN | 62 min |
| Jul 31, 5:30 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 31, 6:30 AM CDT | Special Weather Statement | DVN | 45 min |
| Jul 31, 8:04 AM CDT | Special Weather Statement | DVN | 41 min |
| Aug 5, 11:02 AM CDT | Heat Advisory | DVN | 9 hr |
| Aug 15, 8:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Aug 15, 9:08 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 15, 10:22 PM CDT | Severe Thunderstorm Warning | DVN | 35 min |
| Aug 15, 11:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 16, 12:03 AM CDT | Special Weather Statement | DVN | 27 min |
| Aug 16, 1:19 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 25, 2:11 AM CDT | Excessive Heat Watch | DVN | 37 hr |
| Aug 25, 2:11 AM CDT | Excessive Heat Warning | DVN | 66 hr |
| Aug 27, 8:13 PM CDT | Severe Thunderstorm Warning | DVN | 47 min |
| Aug 27, 8:51 PM CDT | Severe Thunderstorm Warning | DVN | 24 min |
| Aug 27, 9:17 PM CDT | Severe Thunderstorm Warning | DVN | 21 min |
| Oct 14, 2:51 AM CDT | Freeze Watch | DVN | 11 hr |
| Oct 14, 2:07 PM CDT | Freeze Warning | DVN | 43 hr |
| Oct 24, 4:08 PM CDT | Special Weather Statement | DVN | 52 min |
| Oct 29, 10:12 AM CDT | Red Flag Warning | DVN | 8 hr |
| Oct 30, 10:46 PM CDT | Severe Thunderstorm Warning | DVN | 44 min |
| Oct 30, 11:50 PM CDT | Severe Thunderstorm Warning | DVN | 40 min |
| Nov 4, 8:56 PM CST | Special Weather Statement | DVN | 49 min |
| Nov 14, 9:03 PM CST | Dense Fog Advisory | DVN | 12 hr |
| Nov 18, 8:10 PM CST | Wind Advisory | DVN | 10 hr |
| Nov 21, 1:55 AM CST | Wind Advisory | DVN | 18 hr |
| Dec 4, 2:28 AM CST | Wind Advisory | DVN | 22 hr |
| Dec 12, 2:39 PM CST | Winter Weather Advisory | DVN | 51 hr |
| Dec 14, 4:58 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Dec 14, 9:31 PM CST | Dense Fog Advisory | DVN | 14 hr |
| Dec 25, 1:27 PM CST | Dense Fog Advisory | DVN | 42 hr |
| Dec 28, 8:19 PM CST | Dense Fog Advisory | DVN | 16 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 archive20232025
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.