Alert archive / Illinois / Richland County
Weather alerts in Richland County, Illinois, 2009
133 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Richland County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 133
- Warnings
- 39
- Watches
- 22
- Advisories
- 31
- Busiest month
- June42 alerts
- Busiest day
- June 11, 20099 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 Richland County in 2009 had a tornado report inside them.
Richland County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 12 | 3 | 75% | 0 | ||
| Flash flood warnings | 3 | 1 | 67% | 1 | 0% |
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 5, 3:12 PM CST | Winter Weather Advisory | ILX | 20 hr |
| Jan 6, 12:06 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 13, 2:53 PM CST | Wind Chill Advisory | ILX | 68 hr |
| Jan 25, 3:01 PM CST | Winter Storm Watch | ILX | 13 hr |
| Jan 26, 3:35 AM CST | Winter Storm Warning | ILX | 44 hr |
| Jan 26, 3:35 AM CST | Winter Weather Advisory | ILX | 54 hr |
| Jan 26, 6:59 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 27, 6:25 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 7, 8:45 PM CST | River Flood Warning | ILX | 11 days |
| Feb 10, 10:33 AM CST | Flood Watch | ILX | 29 hr |
| Feb 10, 12:36 PM CST | Wind Advisory | ILX | 32 hr |
| Feb 11, 6:15 AM CST | Areal Flood Advisory | ILX | 14 hr |
| Mar 5, 10:32 AM CST | Wind Advisory | ILX | 7 hr |
| Mar 8, 9:31 AM CDT | Wind Advisory | ILX | 11 hr |
| Mar 8, 10:39 AM CDT | Tornado Watch | SPC | 7 hr |
| Mar 8, 12:52 PM CDT | Tornado Warning | ILX | 38 min |
| Mar 10, 3:52 PM CDT | Wind Advisory | ILX | 14 hr |
| Mar 10, 7:31 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Mar 18, 2:22 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Mar 23, 3:30 PM CDT | Wind Advisory | ILX | 24 hr |
| Mar 24, 3:19 PM CDT | High Wind Warning | ILX | 5 hr |
| Apr 3, 2:41 AM CDT | River Flood Warning | ILX | 14 days |
| Apr 3, 3:34 PM CDT | Frost Advisory | ILX | 17 hr |
| Apr 5, 10:50 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 6, 2:53 PM CDT | Freeze Watch | ILX | 22 hr |
| Apr 6, 2:53 PM CDT | Freeze Warning | ILX | 17 hr |
| Apr 7, 1:04 PM CDT | Freeze Warning | ILX | 20 hr |
| Apr 10, 12:50 AM CDT | Mesoscale Discussion | SPC | 85 min |
| Apr 19, 9:27 PM CDT | River Flood Warning | ILX | 5 days |
| Apr 26, 1:29 PM CDT | Wind Advisory | ILX | 6 hr |
| Apr 27, 1:57 AM CDT | Wind Advisory | ILX | 12 hr |
| Apr 28, 1:35 PM CDT | River Flood Warning | ILX | 9 days |
| May 7, 1:13 AM CDT | Dense Fog Advisory | ILX | 8 hr |
| May 7, 5:56 PM CDT | Mesoscale Discussion | SPC | 64 min |
| May 7, 6:14 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 7, 11:46 PM CDT | Mesoscale Discussion | SPC | 89 min |
| May 8, 9:44 PM CDT | River Flood Warning | ILX | 3 days |
| May 13, 9:27 AM CDT | Mesoscale Discussion | SPC | 63 min |
| May 13, 10:05 AM CDT | River Flood Warning | ILX | 9 days |
| May 13, 2:44 PM CDT | Flood Watch | ILX | 14 hr |
| May 13, 3:00 PM CDT | Tornado Watch | SPC | 5 hr |
| May 13, 6:05 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 13, 9:56 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 13, 11:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| May 14, 1:18 AM CDT | Severe Thunderstorm Warning | ILX | 57 min |
| May 14, 1:41 AM CDT | Flash Flood Warning | ILX | 5 hr |
| May 14, 2:14 AM CDT | Severe Thunderstorm Warning | ILX | 43 min |
| May 14, 7:36 AM CDT | Areal Flood Warning | ILX | 5 hr |
| May 15, 5:31 PM CDT | Mesoscale Discussion | SPC | 119 min |
| May 15, 8:14 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 15, 9:39 PM CDT | Areal Flood Advisory | ILX | 3 hr |
| May 16, 12:45 AM CDT | Areal Flood Warning | ILX | 146 days |
| May 25, 11:58 AM CDT | Areal Flood Advisory | ILX | 6 hr |
| May 25, 12:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| May 25, 1:59 PM CDT | Flash Flood Warning | ILX | 5 hr |
| May 25, 9:30 PM CDT | River Flood Warning | ILX | 5 days |
| May 27, 1:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| May 30, 3:49 PM CDT | Severe Thunderstorm Watch | SPC | 11 hr |
| May 30, 6:01 PM CDT | Mesoscale Discussion | SPC | 59 min |
| May 30, 8:53 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Jun 1, 8:10 PM CDT | Areal Flood Advisory | ILX | 9 days |
| Jun 2, 11:58 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 2, 12:27 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 2, 3:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 8, 8:49 AM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 8, 4:33 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 10, 3:13 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 10, 7:46 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 10, 8:58 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Jun 11, 2:22 PM CDT | Special Weather Statement | ILX | 53 min |
| Jun 11, 3:07 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 11, 3:29 PM CDT | Special Weather Statement | ILX | 61 min |
| Jun 11, 3:42 PM CDT | Mesoscale Discussion | SPC | 33 min |
| Jun 11, 4:02 PM CDT | Severe Thunderstorm Warning | ILX | 37 min |
| Jun 11, 4:30 PM CDT | Severe Thunderstorm Warning | ILX | 36 min |
| Jun 11, 5:16 PM CDT | River Flood Warning | ILX | 4 days |
| Jun 16, 9:46 PM CDT | River Flood Warning | ILX | 40 hr |
| Jun 18, 4:12 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 18, 6:09 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 18, 7:19 AM CDT | Severe Thunderstorm Warning | ILX | 56 min |
| Jun 19, 9:50 AM CDT | Heat Advisory | ILX | 9 hr |
| Jun 19, 2:24 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 19, 7:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 19, 8:45 PM CDT | Severe Thunderstorm Warning | ILX | 45 min |
| Jun 19, 9:45 PM CDT | Mesoscale Discussion | SPC | 30 min |
| Jun 19, 10:18 PM CDT | Severe Thunderstorm Warning | ILX | 57 min |
| Jun 19, 11:51 PM CDT | Areal Flood Advisory | ILX | 5 hr |
| Jun 20, 12:28 AM CDT | Special Weather Statement | ILX | 62 min |
| Jun 20, 12:56 AM CDT | Severe Thunderstorm Warning | ILX | 54 min |
| Jun 20, 1:07 AM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 20, 12:53 PM CDT | River Flood Warning | ILX | 6 days |
| Jun 20, 7:45 PM CDT | Special Weather Statement | ILX | 60 min |
| Jun 21, 2:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 21, 5:44 PM CDT | Severe Thunderstorm Warning | ILX | 46 min |
| Jun 21, 6:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 21, 6:20 PM CDT | Severe Thunderstorm Warning | ILX | 40 min |
| Jun 22, 1:54 AM CDT | Heat Advisory | ILX | 65 hr |
| Jun 22, 5:25 PM CDT | Special Weather Statement | ILX | 65 min |
| Jun 22, 5:52 PM CDT | Severe Thunderstorm Warning | ILX | 38 min |
| Jun 22, 6:25 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jun 25, 10:38 AM CDT | Heat Advisory | ILX | 8 hr |
| Jun 26, 1:52 AM CDT | Heat Advisory | ILX | 17 hr |
| Jul 8, 3:42 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jul 8, 5:05 PM CDT | Areal Flood Advisory | ILX | 5 hr |
| Jul 16, 11:02 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 16, 11:16 PM CDT | Flash Flood Warning | ILX | 5 hr |
| Jul 25, 1:26 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 25, 1:32 AM CDT | Severe Thunderstorm Warning | ILX | 73 min |
| Aug 4, 7:39 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Aug 8, 3:10 AM CDT | Heat Advisory | ILX | 40 hr |
| Aug 19, 5:11 PM CDT | Tornado Watch | SPC | 5 hr |
| 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 9, 4:45 AM CDT | Dense Fog Advisory | ILX | 6 hr |
| Sep 10, 2:39 AM CDT | Dense Fog Advisory | ILX | 7 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 26, 2:27 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Oct 7, 3:43 AM CDT | Flash Flood Watch | ILX | 57 hr |
| Oct 8, 5:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 8, 9:21 PM CDT | River Flood Warning | ILX | 5 days |
| Oct 17, 3:23 AM CDT | Frost Advisory | ILX | 30 hr |
| Oct 23, 9:30 AM CDT | River Flood Warning | ILX | 4 days |
| Oct 28, 3:21 PM CDT | Flash Flood Watch | ILX | 4 days |
| Oct 31, 8:56 AM CDT | River Flood Warning | ILX | 4 days |
| Nov 19, 1:24 PM CST | River Flood Warning | ILX | 46 hr |
| Nov 20, 5:39 AM CST | Dense Fog Advisory | ILX | 3 hr |
| Dec 3, 8:04 PM CST | River Flood Warning | ILX | 42 hr |
| Dec 8, 2:18 PM CST | Wind Advisory | ILX | 28 hr |
| Dec 9, 4:02 AM CST | River Flood Warning | ILX | 10 days |
| Dec 12, 10:23 PM CST | Areal Flood Advisory | ILX | 10 hr |
| Dec 22, 3:10 PM CST | Flood Watch | ILX | 67 hr |
| Dec 24, 8:47 AM CST | River Flood Warning | ILX | 9 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 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.