Alert archive / Illinois / Vermilion County
Weather alerts in Vermilion County, Illinois, 2010
170 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 170
- Warnings
- 34
- Watches
- 34
- Advisories
- 50
- Busiest month
- June52 alerts
- Busiest day
- June 22, 20107 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
3 of 6 tornado warnings covering Vermilion County in 2010 had a tornado report inside them; 2 of 3 tornado reports fell inside a warning, on average 3 minutes after it went out.
Vermilion County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 6 | 3 | 50% | 3 | 67% | 3 min |
| Severe thunderstorm warnings | 8 | 2 | 75% | 10 | 20% | 23 min |
| Flash flood warnings | 8 | 2 | 75% | 2 | 50% | 34 min |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Lincoln, IL: tornado warnings | 39 | 8 | 79% | 22 | 77% | 16 min |
| NWS Lincoln, IL: severe thunderstorm warnings | 203 | 82 | 60% | 291 | 66% | 27 min |
| NWS Lincoln, IL: flash flood warnings | 56 | 18 | 68% | 56 | 66% | 42 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 5, 2:16 PM CST | Winter Storm Watch | ILX | 23 hr |
| Jan 6, 12:59 PM CST | Winter Storm Warning | ILX | 26 hr |
| Jan 6, 12:59 PM CST | Winter Weather Advisory | ILX | 45 hr |
| Jan 9, 3:07 PM CST | Wind Chill Advisory | ILX | 19 hr |
| Jan 15, 2:07 PM CST | Freezing Fog Advisory | ILX | 22 hr |
| Jan 16, 2:58 PM CST | Freezing Fog Advisory | ILX | 21 hr |
| Jan 17, 1:47 PM CST | Freezing Fog Advisory | ILX | 20 hr |
| Jan 18, 3:20 PM CST | Freezing Fog Advisory | ILX | 20 hr |
| Jan 19, 3:21 PM CST | Freezing Rain Advisory | ILX | 39 hr |
| Jan 22, 10:27 PM CST | Dense Fog Advisory | ILX | 5 hr |
| Jan 25, 3:14 PM CST | Winter Weather Advisory | ILX | 18 hr |
| Feb 4, 2:47 PM CST | Winter Weather Advisory | ILX | 36 hr |
| Feb 6, 3:41 PM CST | Winter Storm Watch | ILX | 35 hr |
| Feb 8, 2:56 AM CST | Winter Weather Advisory | ILX | 32 hr |
| Feb 8, 3:38 PM CST | Winter Storm Warning | ILX | 19 hr |
| Feb 9, 11:02 AM CST | Winter Weather Advisory | ILX | 15 hr |
| Mar 8, 2:44 AM CST | Dense Fog Advisory | ILX | 9 hr |
| Mar 8, 7:11 PM CST | Dense Fog Advisory | ILX | 11 hr |
| Mar 11, 1:56 PM CST | Mesoscale Discussion | SPC | 94 min |
| Apr 2, 4:18 PM CDT | Red Flag Warning | ILX | 4 hr |
| Apr 4, 10:05 PM CDT | Special Weather Statement | ILX | 40 min |
| Apr 5, 2:51 PM CDT | Tornado Watch | SPC | 4 hr |
| Apr 5, 5:47 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Apr 6, 11:04 AM CDT | Wind Advisory | ILX | 5 hr |
| Apr 7, 12:54 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 7, 1:24 PM CDT | Tornado Watch | SPC | 8 hr |
| Apr 7, 3:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 7, 5:43 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Apr 15, 3:40 AM CDT | Red Flag Warning | ILX | 15 hr |
| Apr 17, 2:39 AM CDT | Frost Advisory | ILX | 29 hr |
| Apr 17, 2:23 PM CDT | Freeze Warning | ILX | 18 hr |
| Apr 24, 3:20 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 24, 3:54 PM CDT | Wind Advisory | ILX | 6 hr |
| Apr 24, 5:14 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Apr 27, 1:56 PM CDT | Frost Advisory | ILX | 18 hr |
| Apr 29, 3:50 AM CDT | Wind Advisory | ILX | 15 hr |
| Apr 30, 9:03 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 30, 11:41 PM CDT | Mesoscale Discussion | SPC | 64 min |
| May 1, 9:45 PM CDT | Mesoscale Discussion | SPC | 30 min |
| May 1, 10:14 PM CDT | Tornado Watch | SPC | 7 hr |
| May 2, 2:09 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 3, 12:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| May 3, 1:45 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 3, 5:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| May 7, 2:30 PM CDT | Tornado Watch | SPC | 9 hr |
| May 8, 2:51 AM CDT | Frost Advisory | ILX | 28 hr |
| May 13, 6:53 AM CDT | Severe Thunderstorm Watch | SPC | 2 hr |
| May 21, 10:26 AM CDT | Mesoscale Discussion | SPC | 64 min |
| May 21, 12:23 PM CDT | Tornado Warning | ILX | 37 min |
| May 21, 1:50 PM CDT | Flash Flood Warning | ILX | 6 hr |
| May 21, 2:09 PM CDT | Flash Flood Warning | ILX | 6 hr |
| May 21, 11:24 PM CDT | Dense Fog Advisory | ILX | 10 hr |
| May 26, 5:40 PM CDT | Areal Flood Advisory | ILX | 4 hr |
| May 26, 5:52 PM CDT | Severe Thunderstorm Warning | ILX | 38 min |
| May 26, 6:15 PM CDT | Flash Flood Warning | ILX | 4 hr |
| May 31, 2:29 PM CDT | Areal Flood Advisory | ILX | 5 hr |
| Jun 1, 2:13 AM CDT | Dense Fog Advisory | ILX | 7 hr |
| Jun 1, 9:53 PM CDT | Flash Flood Watch | ILX | 17 hr |
| Jun 2, 1:31 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 2, 1:54 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 2, 3:15 AM CDT | Severe Thunderstorm Warning | ILX | 60 min |
| Jun 4, 3:54 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 5, 6:29 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Jun 5, 7:37 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 5, 11:17 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 11, 12:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 11, 2:24 PM CDT | Special Weather Statement | ILX | 51 min |
| Jun 12, 12:24 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 12, 12:50 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 12, 3:49 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 12, 5:50 PM CDT | Areal Flood Advisory | ILX | 5 hr |
| Jun 13, 12:24 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 13, 3:14 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Jun 13, 4:22 PM CDT | Severe Thunderstorm Warning | ILX | 23 min |
| Jun 13, 4:46 PM CDT | Severe Thunderstorm Warning | ILX | 29 min |
| Jun 13, 6:13 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Jun 14, 1:45 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jun 14, 2:17 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 14, 4:32 PM CDT | Severe Thunderstorm Warning | ILX | 58 min |
| Jun 14, 5:01 PM CDT | Flash Flood Warning | ILX | 6 hr |
| Jun 15, 9:51 AM CDT | Flash Flood Watch | ILX | 10 hr |
| Jun 15, 11:55 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Jun 15, 12:29 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 15, 2:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 15, 5:34 PM CDT | Special Weather Statement | ILX | 56 min |
| Jun 18, 5:06 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jun 18, 5:24 PM CDT | Severe Thunderstorm Warning | ILX | 66 min |
| Jun 18, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 18, 6:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jun 18, 10:46 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 18, 11:38 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 21, 3:11 PM CDT | Heat Advisory | ILX | 24 hr |
| Jun 21, 4:36 PM CDT | Tornado Watch | SPC | 5 hr |
| Jun 21, 6:22 PM CDT | Tornado Warning | ILX | 38 min |
| Jun 21, 6:57 PM CDT | Tornado Warning | ILX | 63 min |
| Jun 21, 7:00 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jun 21, 7:22 PM CDT | Flash Flood Warning | ILX | 6 hr |
| Jun 21, 8:17 PM CDT | Tornado Warning | ILX | 21 min |
| Jun 21, 9:43 PM CDT | Flash Flood Warning | ILX | 6 hr |
| Jun 21, 9:51 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 22, 12:08 AM CDT | Severe Thunderstorm Warning | ILX | 37 min |
| Jun 22, 1:27 AM CDT | Areal Flood Advisory | ILX | 9 hr |
| Jun 23, 3:52 AM CDT | Heat Advisory | ILX | 16 hr |
| Jun 23, 11:06 AM CDT | Flash Flood Watch | ILX | 14 hr |
| Jun 23, 6:50 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 23, 8:29 PM CDT | Special Weather Statement | ILX | 61 min |
| Jun 25, 2:12 PM CDT | Heat Advisory | ILX | 29 hr |
| Jun 27, 10:02 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Jul 14, 3:15 PM CDT | Heat Advisory | ILX | 28 hr |
| Jul 15, 11:32 AM CDT | Mesoscale Discussion | SPC | 58 min |
| Jul 15, 11:57 AM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 15, 1:33 PM CDT | Flash Flood Warning | ILX | 6 hr |
| Jul 15, 2:47 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jul 15, 5:23 PM CDT | Flash Flood Warning | ILX | 6 hr |
| Jul 15, 5:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 16, 3:45 PM CDT | Heat Advisory | ILX | 27 hr |
| Jul 17, 7:24 PM CDT | Special Weather Statement | ILX | 66 min |
| Jul 17, 8:02 PM CDT | Areal Flood Advisory | ILX | 6 hr |
| Jul 18, 1:36 AM CDT | Heat Advisory | ILX | 5 hr |
| Jul 19, 11:02 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 20, 8:44 AM CDT | Flash Flood Watch | ILX | 19 hr |
| Jul 21, 12:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 21, 1:25 PM CDT | Tornado Warning | ILX | 35 min |
| Jul 21, 2:03 PM CDT | Tornado Warning | ILX | 28 min |
| Jul 21, 3:08 PM CDT | Heat Advisory | ILX | 60 hr |
| Jul 24, 2:51 AM CDT | Excessive Heat Warning | ILX | 16 hr |
| Jul 24, 1:21 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jul 24, 1:53 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 24, 3:37 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 28, 2:54 AM CDT | Heat Advisory | ILX | 16 hr |
| Jul 28, 2:23 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 28, 6:01 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Aug 2, 3:53 PM CDT | Heat Advisory | ILX | 50 hr |
| Aug 3, 7:22 PM CDT | Excessive Heat Warning | ILX | 24 hr |
| Aug 4, 2:27 PM CDT | Mesoscale Discussion | SPC | 33 min |
| Aug 4, 3:12 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 4, 5:06 PM CDT | Special Weather Statement | ILX | 39 min |
| Aug 4, 6:01 PM CDT | Special Weather Statement | ILX | 59 min |
| Aug 4, 6:13 PM CDT | Special Weather Statement | ILX | 62 min |
| Aug 4, 6:22 PM CDT | Severe Thunderstorm Warning | ILX | 53 min |
| Aug 8, 3:22 PM CDT | Excessive Heat Warning | ILX | 6 days |
| Aug 8, 3:22 PM CDT | Heat Advisory | ILX | 72 hr |
| Sep 2, 4:25 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Sep 2, 4:43 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 2, 7:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 2, 8:47 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Oct 3, 2:35 PM CDT | Frost Advisory | ILX | 16 hr |
| Oct 4, 11:35 AM CDT | Frost Advisory | ILX | 19 hr |
| Oct 21, 3:38 PM CDT | Frost Advisory | ILX | 16 hr |
| Oct 24, 3:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 25, 3:08 AM CDT | Wind Advisory | ILX | 40 hr |
| Oct 26, 2:56 AM CDT | High Wind Warning | ILX | 12 hr |
| Oct 26, 3:28 AM CDT | Tornado Watch | SPC | 8 hr |
| Oct 26, 6:00 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 28, 2:50 AM CDT | Freeze Warning | ILX | 30 hr |
| Oct 30, 3:34 AM CDT | Red Flag Warning | ILX | 14 hr |
| Nov 20, 3:45 AM CST | Dense Fog Advisory | ILX | 6 hr |
| Nov 22, 4:50 PM CST | Tornado Watch | SPC | 7 hr |
| Nov 22, 7:31 PM CST | Mesoscale Discussion | SPC | 89 min |
| Nov 24, 9:31 AM CST | Freezing Rain Advisory | ILX | 3 hr |
| Dec 3, 3:10 PM CST | Winter Weather Advisory | ILX | 27 hr |
| Dec 4, 12:18 AM CST | Winter Storm Warning | ILX | 18 hr |
| Dec 10, 3:38 PM CST | Winter Weather Advisory | ILX | 53 hr |
| Dec 12, 3:01 PM CST | Wind Chill Advisory | ILX | 18 hr |
| Dec 15, 3:50 AM CST | Winter Weather Advisory | ILX | 32 hr |
| Dec 20, 3:00 PM CST | Freezing Rain Advisory | ILX | 11 hr |
| Dec 23, 2:59 PM CST | Winter Weather Advisory | ILX | 38 hr |
| Dec 29, 10:01 AM CST | Dense Fog Advisory | ILX | 20 hr |
| Dec 31, 1:16 PM CST | Tornado Watch | SPC | 6 hr |
| Dec 31, 2:12 PM CST | Mesoscale Discussion | SPC | 93 min |
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 archive20092011
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.