Alert archive / Illinois / Vermilion County
Weather alerts in Vermilion County, Illinois, 2019
129 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Vermilion County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 129
- Warnings
- 30
- Watches
- 22
- Advisories
- 36
- Busiest month
- May29 alerts
- Busiest day
- June 30, 201915 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 2 tornado warnings covering Vermilion County in 2019 had a tornado report inside them; 0 of 3 tornado reports fell inside a warning.
Vermilion County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 3 | 0% | |
| Severe thunderstorm warnings | 17 | 11 | 35% | 54 | 72% | 26 min |
| Flash flood warnings | 4 | 2 | 50% | 2 | 100% | 144 min |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Lincoln, IL: tornado warnings | 36 | 9 | 75% | 23 | 57% | 10 min |
| NWS Lincoln, IL: severe thunderstorm warnings | 194 | 85 | 56% | 398 | 62% | 21 min |
| NWS Lincoln, IL: flash flood warnings | 45 | 12 | 73% | 29 | 76% | 79 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, 3:11 PM CST | Wind Advisory | ILX | 32 hr |
| Jan 11, 3:35 AM CST | Winter Storm Warning | ILX | 50 hr |
| Jan 14, 3:54 AM CST | Dense Fog Advisory | ILX | 8 hr |
| Jan 15, 3:08 PM CST | Winter Weather Advisory | ILX | 15 hr |
| Jan 16, 10:46 AM CST | Winter Weather Advisory | ILX | 22 hr |
| Jan 17, 8:57 AM CST | Dense Fog Advisory | ILX | 7 hr |
| Jan 17, 1:59 PM CST | Winter Storm Watch | ILX | 13 hr |
| Jan 18, 3:10 AM CST | Winter Storm Warning | ILX | 33 hr |
| Jan 21, 2:52 PM CST | Winter Weather Advisory | ILX | 23 hr |
| Jan 23, 2:54 PM CST | Wind Chill Advisory | ILX | 43 hr |
| Jan 28, 3:20 AM CST | Wind Chill Watch | ILX | 11 hr |
| Jan 28, 2:18 PM CST | Wind Chill Warning | ILX | 70 hr |
| Jan 31, 3:29 AM CST | Winter Weather Advisory | ILX | 24 hr |
| Feb 2, 7:41 PM CST | Dense Fog Advisory | ILX | 4 hr |
| Feb 6, 8:53 PM CST | Dense Fog Advisory | ILX | 9 hr |
| Feb 7, 9:38 AM CST | Dense Fog Advisory | ILX | 3 hr |
| Feb 7, 12:53 PM CST | Wind Advisory | ILX | 14 hr |
| Feb 10, 3:17 PM CST | Winter Weather Advisory | ILX | 51 hr |
| Feb 10, 9:01 PM CST | Dense Fog Advisory | ILX | 12 hr |
| Feb 12, 3:55 AM CST | Wind Advisory | ILX | 23 hr |
| Feb 16, 3:44 AM CST | Winter Weather Advisory | ILX | 44 hr |
| Feb 19, 3:42 AM CST | Winter Weather Advisory | ILX | 32 hr |
| Feb 22, 3:23 PM CST | High Wind Watch | ILX | 24 hr |
| Feb 23, 2:54 PM CST | High Wind Warning | ILX | 27 hr |
| Feb 24, 6:07 PM CST | Wind Advisory | ILX | 3 hr |
| Mar 3, 3:05 AM CST | Wind Chill Advisory | ILX | 30 hr |
| Mar 6, 2:53 PM CST | Winter Weather Advisory | ILX | 43 hr |
| Mar 8, 3:18 PM CST | Wind Advisory | ILX | 37 hr |
| Mar 13, 3:18 PM CDT | High Wind Watch | ILX | 13 hr |
| Mar 14, 3:54 AM CDT | High Wind Warning | ILX | 18 hr |
| Mar 14, 12:24 PM CDT | Tornado Watch | SPC | 2 hr |
| Apr 6, 2:04 AM CDT | Dense Fog Advisory | ILX | 8 hr |
| Apr 7, 3:14 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 10, 3:58 PM CDT | Wind Advisory | ILX | 28 hr |
| Apr 29, 2:48 PM CDT | Flash Flood Watch | ILX | 3 days |
| Apr 30, 1:00 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 30, 4:35 PM CDT | Mesoscale Discussion | SPC | 55 min |
| May 2, 2:48 AM CDT | Dense Fog Advisory | ILX | 6 hr |
| May 16, 12:09 PM CDT | Mesoscale Discussion | SPC | 66 min |
| May 16, 12:51 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 16, 2:15 PM CDT | Severe Thunderstorm Warning | ILX | 60 min |
| May 16, 2:47 PM CDT | Mesoscale Discussion | SPC | 118 min |
| May 16, 3:00 PM CDT | Severe Thunderstorm Warning | ILX | 60 min |
| May 16, 3:34 PM CDT | Tornado Warning | ILX | 26 min |
| May 16, 3:55 PM CDT | Tornado Warning | ILX | 35 min |
| May 16, 4:20 PM CDT | Areal Flood Advisory | ILX | 115 min |
| May 16, 4:30 PM CDT | Severe Thunderstorm Warning | ILX | 15 min |
| May 19, 2:06 PM CDT | Mesoscale Discussion | SPC | 114 min |
| May 19, 2:22 PM CDT | Special Weather Statement | ILX | 38 min |
| May 22, 10:26 PM CDT | Tornado Watch | SPC | 8 hr |
| May 23, 1:23 AM CDT | Mesoscale Discussion | SPC | 97 min |
| May 23, 1:53 AM CDT | Severe Thunderstorm Warning | ILX | 52 min |
| May 24, 12:36 PM CDT | Tornado Watch | SPC | 4 hr |
| May 26, 12:24 AM CDT | Mesoscale Discussion | SPC | 66 min |
| May 26, 12:39 AM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 26, 1:30 AM CDT | Severe Thunderstorm Warning | ILX | 45 min |
| May 27, 12:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 27, 1:22 PM CDT | Tornado Watch | SPC | 9 hr |
| May 27, 3:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| May 28, 11:16 AM CDT | Mesoscale Discussion | SPC | 119 min |
| May 28, 12:01 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 28, 3:58 PM CDT | Mesoscale Discussion | SPC | 62 min |
| May 28, 4:04 PM CDT | Special Weather Statement | ILX | 26 min |
| May 29, 8:01 PM CDT | Special Weather Statement | ILX | 29 min |
| May 30, 6:54 PM CDT | Special Weather Statement | ILX | 51 min |
| May 30, 7:19 PM CDT | Special Weather Statement | ILX | 26 min |
| Jun 5, 2:21 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 15, 3:48 AM CDT | Flash Flood Watch | ILX | 27 hr |
| Jun 15, 7:07 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 16, 12:06 AM CDT | Severe Thunderstorm Warning | ILX | 54 min |
| Jun 19, 2:38 AM CDT | Flash Flood Watch | ILX | 22 hr |
| Jun 19, 11:34 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Jun 29, 5:09 PM CDT | Special Weather Statement | ILX | 36 min |
| Jun 29, 6:13 PM CDT | Flash Flood Warning | ILX | 4 hr |
| Jun 29, 6:29 PM CDT | Special Weather Statement | ILX | 31 min |
| Jun 29, 6:47 PM CDT | Special Weather Statement | ILX | 28 min |
| Jun 29, 7:01 PM CDT | Severe Thunderstorm Warning | ILX | 29 min |
| Jun 29, 7:30 PM CDT | Severe Thunderstorm Warning | ILX | 45 min |
| Jun 29, 10:11 PM CDT | Special Weather Statement | ILX | 34 min |
| Jun 29, 10:16 PM CDT | Flash Flood Warning | ILX | 5 hr |
| Jun 29, 10:43 PM CDT | Special Weather Statement | ILX | 47 min |
| Jun 30, 11:43 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 30, 2:05 PM CDT | Special Weather Statement | ILX | 40 min |
| Jun 30, 2:46 PM CDT | Special Weather Statement | ILX | 29 min |
| Jun 30, 2:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 30, 2:59 PM CDT | Severe Thunderstorm Warning | ILX | 46 min |
| Jun 30, 3:16 PM CDT | Severe Thunderstorm Warning | ILX | 44 min |
| Jun 30, 3:27 PM CDT | Severe Thunderstorm Warning | ILX | 48 min |
| Jun 30, 3:59 PM CDT | Severe Thunderstorm Warning | ILX | 22 min |
| Jun 30, 4:08 PM CDT | Severe Thunderstorm Warning | ILX | 35 min |
| Jun 30, 4:14 PM CDT | Flash Flood Warning | ILX | 6 hr |
| Jul 3, 4:47 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 6, 2:14 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 10, 3:50 AM CDT | Heat Advisory | ILX | 15 hr |
| Jul 16, 3:29 PM CDT | Excessive Heat Watch | ILX | 12 hr |
| Jul 16, 3:29 PM CDT | Excessive Heat Warning | ILX | 5 days |
| Jul 21, 12:28 PM CDT | Special Weather Statement | ILX | 32 min |
| Jul 21, 12:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 2:08 PM CDT | Special Weather Statement | ILX | 52 min |
| Aug 8, 3:36 PM CDT | Special Weather Statement | ILX | 54 min |
| Aug 12, 8:23 PM CDT | Tornado Watch | SPC | 5 hr |
| Aug 17, 8:00 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 18, 3:41 PM CDT | Special Weather Statement | ILX | 64 min |
| Aug 18, 3:47 PM CDT | Severe Thunderstorm Warning | ILX | 58 min |
| Aug 18, 5:03 PM CDT | Flash Flood Warning | ILX | 3 hr |
| Aug 20, 6:18 AM CDT | Severe Thunderstorm Watch | SPC | 11 hr |
| Aug 20, 9:04 AM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 20, 11:05 AM CDT | Severe Thunderstorm Warning | ILX | 55 min |
| Aug 20, 11:35 AM CDT | Severe Thunderstorm Warning | ILX | 40 min |
| Aug 21, 4:46 AM CDT | Dense Fog Advisory | ILX | 4 hr |
| Aug 22, 1:34 PM CDT | Special Weather Statement | ILX | 116 min |
| Aug 26, 4:29 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Sep 1, 3:44 PM CDT | Special Weather Statement | ILX | 2 hr |
| Sep 2, 1:19 AM CDT | Dense Fog Advisory | ILX | 8 hr |
| Sep 3, 3:54 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 28, 12:46 AM CDT | Special Weather Statement | ILX | 44 min |
| Sep 29, 5:51 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Sep 29, 6:24 PM CDT | Severe Thunderstorm Warning | ILX | 44 min |
| Oct 13, 2:27 PM CDT | Frost Advisory | ILX | 18 hr |
| Oct 17, 3:27 PM CDT | Frost Advisory | ILX | 17 hr |
| Nov 10, 3:08 PM CST | Winter Weather Advisory | ILX | 29 hr |
| Nov 19, 9:36 PM CST | Dense Fog Advisory | ILX | 11 hr |
| Nov 25, 2:03 PM CST | High Wind Watch | ILX | 21 hr |
| Nov 26, 11:18 AM CST | High Wind Warning | ILX | 31 hr |
| Nov 26, 11:32 PM CST | Mesoscale Discussion | SPC | 118 min |
| Dec 14, 2:11 AM CST | Dense Fog Advisory | ILX | 7 hr |
| Dec 15, 3:53 AM CST | Winter Weather Advisory | ILX | 44 hr |
| Dec 24, 1:58 AM CST | Dense Fog Advisory | ILX | 8 hr |
| Dec 28, 8:52 AM CST | Dense Fog Advisory | ILX | 2 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 archive20182020
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.