Alert archive / Illinois / Tazewell County
Weather alerts in Tazewell County, Illinois, 2009
150 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Tazewell County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 150
- Warnings
- 45
- Watches
- 23
- Advisories
- 42
- Busiest month
- June35 alerts
- Busiest day
- May 15, 200910 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 Tazewell County in 2009 had a tornado report inside them.
Tazewell County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 27 | 23 | 15% | 14 | 71% | 25 min |
| Flash flood warnings | 4 | 3 | 25% | 1 | 100% | 328 min |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Lincoln, IL: tornado warnings | 44 | 10 | 77% | 26 | 65% | 15 min |
| NWS Lincoln, IL: severe thunderstorm warnings | 176 | 98 | 44% | 351 | 74% | 24 min |
| NWS Lincoln, IL: flash flood warnings | 37 | 13 | 65% | 51 | 55% | 100 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 3, 8:40 PM CST | Dense Fog Advisory | ILX | 9 hr |
| Jan 12, 3:06 PM CST | Winter Weather Advisory | ILX | 11 hr |
| Jan 13, 2:53 PM CST | Wind Chill Advisory | ILX | 68 hr |
| Jan 13, 2:53 PM CST | Winter Weather Advisory | ILX | 27 hr |
| Jan 13, 11:38 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 14, 2:49 AM CST | Wind Chill Warning | ILX | 56 hr |
| Feb 3, 3:25 PM CST | Wind Chill Advisory | ILX | 12 hr |
| Feb 10, 10:33 AM CST | Flood Watch | ILX | 29 hr |
| Feb 10, 12:36 PM CST | Wind Advisory | ILX | 32 hr |
| Feb 20, 3:34 AM CST | Winter Weather Advisory | ILX | 38 hr |
| Feb 26, 3:28 AM CST | Dense Fog Advisory | ILX | 7 hr |
| Feb 28, 7:38 PM CST | River Flood Warning | ILX | 5 days |
| Mar 5, 10:32 AM CST | Wind Advisory | ILX | 7 hr |
| Mar 6, 3:05 PM CST | Flash Flood Watch | ILX | 47 hr |
| Mar 7, 9:06 PM CST | River Flood Warning | ILX | 90 days |
| Mar 8, 9:26 AM CDT | Mesoscale Discussion | SPC | 64 min |
| Mar 8, 9:31 AM CDT | Wind Advisory | ILX | 11 hr |
| Mar 8, 10:39 AM CDT | Tornado Watch | SPC | 7 hr |
| Mar 8, 12:13 PM CDT | Tornado Warning | ILX | 47 min |
| Mar 9, 3:03 AM CDT | Flash Flood Watch | ILX | 33 hr |
| Mar 10, 4:49 AM CDT | Areal Flood Advisory | ILX | 6 hr |
| Mar 10, 11:03 AM CDT | River Flood Warning | ILX | 52 hr |
| Mar 10, 3:52 PM CDT | Wind Advisory | ILX | 14 hr |
| Mar 23, 3:30 PM CDT | Wind Advisory | ILX | 24 hr |
| Mar 24, 3:19 PM CDT | High Wind Warning | ILX | 5 hr |
| Mar 27, 2:21 PM CDT | Winter Storm Watch | ILX | 13 hr |
| Mar 28, 3:48 AM CDT | Winter Weather Advisory | ILX | 28 hr |
| Apr 5, 10:50 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 25, 5:32 PM CDT | Mesoscale Discussion | SPC | 73 min |
| Apr 25, 6:23 PM CDT | Special Weather Statement | ILX | 37 min |
| Apr 27, 5:34 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Apr 27, 6:12 PM CDT | Special Weather Statement | ILX | 63 min |
| Apr 27, 6:59 PM CDT | Special Weather Statement | ILX | 61 min |
| Apr 29, 3:11 PM CDT | Flash Flood Watch | ILX | 19 hr |
| Apr 30, 2:09 AM CDT | Areal Flood Advisory | ILX | 6 hr |
| Apr 30, 2:48 AM CDT | Areal Flood Advisory | ILX | 6 hr |
| Apr 30, 3:01 AM CDT | Areal Flood Advisory | ILX | 6 hr |
| May 7, 4:29 PM CDT | Severe Thunderstorm Warning | ILX | 46 min |
| May 8, 8:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 13, 9:27 AM CDT | Mesoscale Discussion | SPC | 63 min |
| May 13, 10:18 AM CDT | Special Weather Statement | ILX | 57 min |
| May 13, 5:36 PM CDT | Severe Thunderstorm Warning | ILX | 24 min |
| May 13, 5:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| May 13, 6:02 PM CDT | Tornado Watch | SPC | 5 hr |
| May 13, 8:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 13, 10:17 PM CDT | Mesoscale Discussion | SPC | 58 min |
| May 14, 3:02 PM CDT | Flash Flood Watch | ILX | 32 hr |
| May 15, 10:58 AM CDT | River Flood Warning | ILX | 56 hr |
| May 15, 11:32 AM CDT | Areal Flood Advisory | ILX | 6 hr |
| May 15, 2:05 PM CDT | Mesoscale Discussion | SPC | 25 min |
| May 15, 2:39 PM CDT | Tornado Watch | SPC | 7 hr |
| May 15, 4:17 PM CDT | Flash Flood Warning | ILX | 6 hr |
| May 15, 4:47 PM CDT | Areal Flood Advisory | ILX | 6 hr |
| May 15, 5:25 PM CDT | Areal Flood Advisory | ILX | 6 hr |
| May 15, 5:31 PM CDT | Mesoscale Discussion | SPC | 119 min |
| May 15, 5:46 PM CDT | Flash Flood Warning | ILX | 5 hr |
| May 15, 5:54 PM CDT | Flash Flood Warning | ILX | 6 hr |
| May 15, 7:35 PM CDT | Flash Flood Warning | ILX | 4 hr |
| May 15, 10:44 PM CDT | Areal Flood Warning | ILX | 6 days |
| May 30, 2:44 PM CDT | Mesoscale Discussion | SPC | 91 min |
| May 30, 6:01 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jun 1, 2:37 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 1, 6:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 1, 7:08 PM CDT | Severe Thunderstorm Warning | ILX | 52 min |
| Jun 1, 7:47 PM CDT | Severe Thunderstorm Warning | ILX | 28 min |
| Jun 1, 8:10 PM CDT | Areal Flood Advisory | ILX | 9 days |
| Jun 1, 8:57 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Jun 8, 11:54 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 18, 3:20 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 18, 4:12 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 18, 4:14 AM CDT | Severe Thunderstorm Warning | ILX | 61 min |
| Jun 18, 5:00 AM CDT | Severe Thunderstorm Warning | ILX | 45 min |
| Jun 18, 5:24 AM CDT | Severe Thunderstorm Warning | ILX | 56 min |
| Jun 18, 5:30 AM CDT | Tornado Warning | ILX | 45 min |
| Jun 18, 10:11 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 18, 1:17 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 19, 10:12 AM CDT | Severe Thunderstorm Warning | ILX | 22 min |
| Jun 19, 2:21 PM CDT | Severe Thunderstorm Warning | ILX | 54 min |
| Jun 19, 2:24 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 19, 3:00 PM CDT | Severe Thunderstorm Warning | ILX | 60 min |
| Jun 19, 3:10 PM CDT | Severe Thunderstorm Warning | ILX | 65 min |
| Jun 19, 5:03 PM CDT | Severe Thunderstorm Warning | ILX | 42 min |
| Jun 19, 5:30 PM CDT | Severe Thunderstorm Warning | ILX | 45 min |
| Jun 19, 5:37 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 19, 7:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 22, 1:54 AM CDT | Heat Advisory | ILX | 65 hr |
| Jun 25, 10:38 AM CDT | Heat Advisory | ILX | 8 hr |
| Jun 25, 12:14 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Jun 25, 12:48 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 25, 2:56 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Jun 25, 5:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 27, 2:41 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 27, 6:22 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 27, 7:30 PM CDT | Severe Thunderstorm Warning | ILX | 60 min |
| Jun 27, 8:29 PM CDT | Severe Thunderstorm Warning | ILX | 46 min |
| Jun 27, 9:16 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jul 8, 3:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jul 15, 2:33 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 15, 2:52 AM CDT | Areal Flood Advisory | ILX | 6 hr |
| Jul 24, 7:20 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 24, 9:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jul 24, 9:51 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 24, 10:19 PM CDT | Severe Thunderstorm Warning | ILX | 56 min |
| Jul 24, 10:42 PM CDT | Severe Thunderstorm Warning | ILX | 48 min |
| Jul 24, 11:01 PM CDT | Severe Thunderstorm Warning | ILX | 44 min |
| Jul 24, 11:16 PM CDT | Severe Thunderstorm Warning | ILX | 59 min |
| Jul 24, 11:46 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Aug 4, 7:39 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 4, 8:11 AM CDT | Severe Thunderstorm Warning | ILX | 55 min |
| Aug 4, 8:19 AM CDT | Severe Thunderstorm Warning | ILX | 41 min |
| Aug 4, 8:37 AM CDT | Severe Thunderstorm Warning | ILX | 38 min |
| Aug 8, 3:10 AM CDT | Heat Advisory | ILX | 40 hr |
| Aug 17, 3:03 AM CDT | Flash Flood Watch | ILX | 12 hr |
| Aug 17, 3:23 PM CDT | Severe Thunderstorm Warning | ILX | 52 min |
| Aug 17, 4:48 PM CDT | Areal Flood Advisory | ILX | 3 hr |
| Aug 19, 11:51 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Aug 19, 12:49 PM CDT | Tornado Watch | SPC | 6 hr |
| Aug 19, 2:43 PM CDT | Severe Thunderstorm Warning | ILX | 62 min |
| Aug 19, 2:54 PM CDT | Severe Thunderstorm Warning | ILX | 66 min |
| Aug 19, 3:19 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 19, 3:24 PM CDT | Severe Thunderstorm Warning | ILX | 66 min |
| Aug 19, 3:48 PM CDT | Severe Thunderstorm Warning | ILX | 57 min |
| Aug 19, 8:56 PM CDT | Flash Flood Watch | ILX | 10 hr |
| Sep 6, 11:38 PM CDT | Dense Fog Advisory | ILX | 9 hr |
| Sep 10, 2:39 AM CDT | Dense Fog Advisory | ILX | 7 hr |
| Sep 10, 8:43 PM CDT | Dense Fog Advisory | ILX | 11 hr |
| Sep 13, 4:55 AM CDT | Dense Fog Advisory | ILX | 4 hr |
| Sep 25, 8:51 PM CDT | Dense Fog Advisory | ILX | 13 hr |
| Sep 26, 1:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Sep 27, 5:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Sep 27, 8:22 PM CDT | Tornado Watch | SPC | 3 hr |
| Oct 1, 6:00 PM CDT | Special Weather Statement | ILX | 30 min |
| Oct 9, 3:25 PM CDT | Frost Advisory | ILX | 18 hr |
| Oct 10, 2:11 AM CDT | Freeze Warning | ILX | 25 hr |
| Oct 17, 3:23 AM CDT | Frost Advisory | ILX | 30 hr |
| Oct 28, 3:21 PM CDT | Flash Flood Watch | ILX | 4 days |
| Oct 30, 3:27 AM CDT | River Flood Warning | ILX | 4 days |
| Oct 31, 11:36 AM CDT | River Flood Warning | ILX | 12 days |
| Nov 20, 5:39 AM CST | Dense Fog Advisory | ILX | 3 hr |
| Nov 20, 9:49 PM CST | Dense Fog Advisory | ILX | 11 hr |
| Dec 7, 2:59 PM CST | Winter Weather Advisory | ILX | 60 hr |
| Dec 10, 2:48 AM CST | Wind Chill Advisory | ILX | 6 hr |
| Dec 12, 7:11 PM CST | Freezing Rain Advisory | ILX | 5 hr |
| Dec 22, 2:57 PM CST | Winter Weather Advisory | ILX | 19 hr |
| Dec 22, 3:10 PM CST | Flood Watch | ILX | 67 hr |
| Dec 25, 1:01 AM CST | River Flood Warning | ILX | 62 hr |
| Dec 26, 10:19 AM CST | Winter Weather Advisory | ILX | 11 hr |
| Dec 27, 3:14 AM CST | Winter Weather Advisory | ILX | 12 hr |
| Dec 27, 11:12 AM CST | River Flood Warning | ILX | 10 days |
| Dec 30, 9:40 AM CST | Winter Weather Advisory | ILX | 14 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 archive20082010
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.