Alert archive / Illinois / Winnebago County
Weather alerts in Winnebago County, Illinois, 2022
134 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Winnebago County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 134
- Warnings
- 35
- Watches
- 17
- Advisories
- 42
- Busiest month
- July34 alerts
- Busiest day
- July 5, 202214 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Winnebago County in 2022 had a tornado report inside them.
Winnebago County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 16 | 11 | 31% | 19 | 95% | 27 min |
| Flash flood warnings | 4 | 2 | 50% | 7 | 71% | 175 min |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Chicago, IL: tornado warnings | 15 | 3 | 80% | 15 | 60% | 13 min |
| NWS Chicago, IL: severe thunderstorm warnings | 148 | 102 | 31% | 466 | 77% | 26 min |
| NWS Chicago, IL: flash flood warnings | 19 | 8 | 58% | 33 | 79% | 95 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 1, 2:27 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 4, 3:43 AM CST | Winter Weather Advisory | LOT | 41 hr |
| Jan 6, 1:52 PM CST | Wind Chill Advisory | LOT | 19 hr |
| Jan 7, 2:17 PM CST | Winter Weather Advisory | LOT | 34 hr |
| Jan 22, 9:21 AM CST | Winter Weather Advisory | LOT | 32 hr |
| Jan 23, 3:17 PM CST | Winter Weather Advisory | LOT | 22 hr |
| Jan 24, 8:39 PM CST | Wind Chill Advisory | LOT | 12 hr |
| Jan 25, 3:13 AM CST | Wind Chill Advisory | LOT | 31 hr |
| Feb 18, 3:24 AM CST | Wind Advisory | LOT | 24 hr |
| Feb 18, 7:46 PM CST | Snow Squall Warning | LOT | 59 min |
| Feb 18, 8:07 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Feb 18, 8:42 PM CST | Snow Squall Warning | LOT | 63 min |
| Feb 19, 2:08 PM CST | Wind Advisory | LOT | 25 hr |
| Feb 21, 2:01 PM CST | Flood Watch | LOT | 22 hr |
| Feb 22, 2:36 AM CST | Winter Weather Advisory | LOT | 16 hr |
| Feb 23, 2:50 PM CST | Winter Weather Advisory | LOT | 39 hr |
| Mar 5, 3:25 AM CST | Wind Advisory | LOT | 30 hr |
| Mar 5, 8:09 PM CST | Mesoscale Discussion | SPC | 96 min |
| Mar 5, 8:36 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 5, 9:24 PM CST | Severe Thunderstorm Warning | LOT | 66 min |
| Mar 6, 2:36 PM CST | Winter Weather Advisory | LOT | 21 hr |
| Mar 25, 3:03 AM CDT | Wind Advisory | LOT | 19 hr |
| Mar 25, 2:18 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 2, 3:32 AM CDT | Winter Weather Advisory | LOT | 10 hr |
| Apr 13, 2:08 PM CDT | Wind Advisory | LOT | 21 hr |
| Apr 14, 10:41 AM CDT | High Wind Warning | LOT | 8 hr |
| Apr 25, 3:01 AM CDT | Freeze Warning | LOT | 24 hr |
| Apr 26, 3:20 AM CDT | Freeze Warning | LOT | 29 hr |
| Apr 30, 12:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Apr 30, 1:46 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 30, 3:20 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Apr 30, 5:13 PM CDT | Severe Thunderstorm Warning | LOT | 47 min |
| May 11, 6:36 PM CDT | Special Weather Statement | LOT | 24 min |
| May 13, 2:53 PM CDT | Mesoscale Discussion | SPC | 97 min |
| May 13, 6:47 PM CDT | Severe Thunderstorm Warning | LOT | 43 min |
| May 13, 7:13 PM CDT | Areal Flood Advisory | LOT | 2 hr |
| May 13, 7:50 PM CDT | Flash Flood Warning | LOT | 3 hr |
| May 25, 6:09 PM CDT | Special Weather Statement | LOT | 51 min |
| May 25, 6:24 PM CDT | Tornado Warning | LOT | 21 min |
| Jun 9, 2:48 AM CDT | Dense Fog Advisory | LOT | 5 hr |
| Jun 12, 3:39 AM CDT | Dense Fog Advisory | LOT | 5 hr |
| Jun 12, 3:37 PM CDT | Heat Advisory | LOT | 3 days |
| Jun 13, 5:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 7:53 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 15, 9:48 PM CDT | Special Weather Statement | LOT | 12 min |
| Jun 15, 10:00 PM CDT | Special Weather Statement | LOT | 15 min |
| Jun 20, 2:40 PM CDT | Heat Advisory | LOT | 29 hr |
| Jun 21, 8:06 PM CDT | Special Weather Statement | LOT | 39 min |
| Jul 4, 2:22 PM CDT | Heat Advisory | LOT | 30 hr |
| Jul 4, 2:22 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 4, 2:50 PM CDT | Severe Thunderstorm Warning | LOT | 55 min |
| Jul 4, 3:34 PM CDT | Severe Thunderstorm Warning | LOT | 56 min |
| Jul 4, 6:33 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jul 4, 8:07 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 4, 8:32 PM CDT | Severe Thunderstorm Warning | LOT | 58 min |
| Jul 4, 9:30 PM CDT | Severe Thunderstorm Warning | LOT | 45 min |
| Jul 4, 9:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 4, 9:57 PM CDT | Special Weather Statement | LOT | 93 min |
| Jul 4, 11:04 PM CDT | Severe Thunderstorm Warning | LOT | 56 min |
| Jul 4, 11:25 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 4, 11:31 PM CDT | Areal Flood Advisory | LOT | 6 hr |
| Jul 4, 11:56 PM CDT | Flash Flood Warning | LOT | 5 hr |
| Jul 5, 3:54 AM CDT | Flood Watch | LOT | 23 hr |
| Jul 5, 3:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jul 5, 4:34 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 5, 5:37 PM CDT | Severe Thunderstorm Warning | LOT | 68 min |
| Jul 5, 6:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 5, 8:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 5, 8:50 PM CDT | Areal Flood Advisory | LOT | 4 hr |
| Jul 5, 9:59 PM CDT | Flash Flood Warning | LOT | 5 hr |
| Jul 5, 10:24 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jul 23, 2:05 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 23, 2:52 AM CDT | Flood Watch | LOT | 9 hr |
| Jul 23, 4:01 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 23, 2:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 23, 3:58 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 11:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 12:41 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 24, 2:05 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 24, 2:10 AM CDT | Special Weather Statement | LOT | 20 min |
| Jul 24, 2:32 AM CDT | Special Weather Statement | LOT | 43 min |
| Jul 24, 2:44 AM CDT | Severe Thunderstorm Warning | LOT | 61 min |
| Aug 3, 9:23 AM CDT | Special Weather Statement | LOT | 37 min |
| Aug 6, 12:21 PM CDT | Heat Advisory | LOT | 7 hr |
| Aug 7, 3:51 AM CDT | Areal Flood Advisory | LOT | 3 hr |
| Aug 7, 5:02 AM CDT | Flood Watch | LOT | 29 hr |
| Aug 7, 6:33 AM CDT | Areal Flood Advisory | LOT | 4 hr |
| Aug 8, 3:57 AM CDT | Flash Flood Warning | LOT | 4 hr |
| Aug 8, 8:09 AM CDT | Areal Flood Warning | LOT | 3 hr |
| Aug 8, 9:50 AM CDT | River Flood Warning | LOT | 9 days |
| Aug 19, 11:15 PM CDT | Areal Flood Advisory | LOT | 3 hr |
| Aug 28, 12:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 28, 1:09 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 28, 2:47 PM CDT | Severe Thunderstorm Warning | LOT | 58 min |
| Aug 28, 3:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Aug 29, 9:42 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 29, 10:12 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 29, 10:31 AM CDT | Severe Thunderstorm Warning | LOT | 44 min |
| Aug 29, 10:56 AM CDT | Special Weather Statement | LOT | 64 min |
| Sep 11, 2:38 AM CDT | Flood Watch | LOT | 31 hr |
| Sep 11, 5:15 AM CDT | Areal Flood Advisory | LOT | 108 min |
| Sep 11, 7:03 AM CDT | Areal Flood Warning | LOT | 10 hr |
| Sep 11, 8:41 AM CDT | River Flood Watch | LOT | 25 hr |
| Sep 11, 4:01 PM CDT | River Flood Warning | LOT | 17 hr |
| Sep 11, 4:35 PM CDT | Areal Flood Warning | LOT | 6 hr |
| Sep 20, 3:27 PM CDT | Special Weather Statement | LOT | 48 min |
| Sep 20, 3:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Sep 20, 3:45 PM CDT | Severe Thunderstorm Warning | LOT | 60 min |
| Sep 20, 4:37 PM CDT | Severe Thunderstorm Warning | LOT | 23 min |
| Sep 27, 2:44 PM CDT | Frost Advisory | LOT | 15 hr |
| Sep 28, 3:11 PM CDT | Frost Advisory | LOT | 16 hr |
| Oct 7, 3:06 AM CDT | Freeze Watch | LOT | 11 hr |
| Oct 7, 1:59 PM CDT | Freeze Warning | LOT | 18 hr |
| Oct 13, 2:26 PM CDT | Freeze Warning | LOT | 13 hr |
| Oct 14, 2:36 PM CDT | Freeze Warning | LOT | 17 hr |
| Nov 4, 3:18 AM CDT | Wind Advisory | LOT | 40 hr |
| Nov 4, 10:01 AM CDT | Special Weather Statement | LOT | 44 min |
| Nov 4, 10:13 AM CDT | Severe Thunderstorm Warning | LOT | 19 min |
| Nov 4, 11:28 AM CDT | Special Weather Statement | LOT | 17 min |
| Nov 4, 2:05 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Nov 5, 9:51 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Nov 5, 10:39 AM CDT | Severe Thunderstorm Warning | LOT | 51 min |
| Nov 14, 2:27 PM CST | Winter Weather Advisory | LOT | 35 hr |
| Nov 28, 3:47 AM CST | Dense Fog Advisory | LOT | 4 hr |
| Dec 2, 3:39 AM CST | Wind Advisory | LOT | 29 hr |
| Dec 7, 1:02 AM CST | Dense Fog Advisory | LOT | 9 hr |
| Dec 8, 1:36 PM CST | Winter Weather Advisory | LOT | 23 hr |
| Dec 19, 2:30 PM CST | Winter Storm Watch | LOT | 44 hr |
| Dec 21, 10:41 AM CST | Winter Storm Warning | LOT | 3 days |
| Dec 23, 10:31 AM CST | River Flood Advisory | LOT | 24 hr |
| Dec 24, 3:19 AM CST | Winter Weather Advisory | LOT | 9 hr |
| Dec 24, 1:05 PM CST | Wind Chill Advisory | LOT | 21 hr |
| Dec 25, 11:44 AM CST | River Flood Advisory | LOT | 4 days |
| Dec 25, 7:25 PM CST | River Flood Advisory | LOT | 6 days |
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 archive20212023
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.