Alert archive / Illinois / Richland County
Weather alerts in Richland County, Illinois, 2015
112 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 112
- Warnings
- 34
- Watches
- 20
- Advisories
- 27
- Busiest month
- April22 alerts
- Busiest day
- April 8, 20159 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
1 of 2 tornado warnings covering Richland County in 2015 had a tornado report inside them; 2 of 2 tornado reports fell inside a warning, on average 3 minutes after it went out.
Richland County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 1 | 50% | 2 | 100% | 3 min |
| Severe thunderstorm warnings | 5 | 2 | 60% | 1 | 100% | 1 min |
| Flash flood warnings | 6 | 1 | 83% | 1 | 100% | 4 min |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Lincoln, IL: tornado warnings | 20 | 4 | 80% | 16 | 31% | 3 min |
| NWS Lincoln, IL: severe thunderstorm warnings | 150 | 72 | 52% | 307 | 67% | 22 min |
| NWS Lincoln, IL: flash flood warnings | 78 | 25 | 68% | 55 | 80% | 144 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 2, 1:07 PM CST | River Flood Warning | ILX | 9 days |
| Jan 6, 3:13 AM CST | Wind Chill Advisory | ILX | 57 hr |
| Jan 10, 3:17 PM CST | Winter Weather Advisory | ILX | 42 hr |
| Feb 15, 3:14 AM CST | Winter Weather Advisory | ILX | 38 hr |
| Feb 15, 2:38 PM CST | Winter Storm Warning | ILX | 27 hr |
| Feb 17, 3:19 PM CST | Wind Chill Advisory | ILX | 45 hr |
| Feb 20, 4:02 AM CST | Winter Weather Advisory | ILX | 11 hr |
| Feb 20, 2:42 PM CST | Winter Storm Warning | ILX | 19 hr |
| Feb 22, 3:12 AM CST | Wind Chill Advisory | ILX | 30 hr |
| Feb 28, 3:09 AM CST | Winter Weather Advisory | ILX | 39 hr |
| Mar 2, 3:06 PM CST | Winter Weather Advisory | ILX | 19 hr |
| Mar 3, 3:30 PM CST | Winter Weather Advisory | ILX | 28 hr |
| Mar 9, 9:03 PM CDT | River Flood Warning | ILX | 10 days |
| Mar 10, 7:54 PM CDT | Dense Fog Advisory | ILX | 16 hr |
| Mar 12, 3:10 PM CDT | Flood Watch | ILX | 36 hr |
| Mar 26, 9:52 AM CDT | River Flood Warning | ILX | 4 days |
| Apr 2, 2:46 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Apr 2, 7:32 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Apr 3, 9:55 PM CDT | River Flood Warning | ILX | 54 hr |
| Apr 8, 12:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Apr 8, 1:05 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 8, 1:48 PM CDT | Severe Thunderstorm Warning | ILX | 42 min |
| Apr 8, 2:25 PM CDT | Severe Thunderstorm Warning | ILX | 35 min |
| Apr 8, 2:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 8, 3:01 PM CDT | Severe Thunderstorm Warning | ILX | 17 min |
| Apr 8, 3:17 PM CDT | Flash Flood Watch | ILX | 32 hr |
| Apr 8, 4:05 PM CDT | Flash Flood Warning | ILX | 6 hr |
| Apr 8, 4:45 PM CDT | Special Weather Statement | ILX | 60 min |
| Apr 8, 8:02 PM CDT | River Flood Warning | ILX | 7 days |
| Apr 9, 3:45 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Apr 9, 6:48 PM CDT | Tornado Watch | SPC | 6 hr |
| Apr 9, 8:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Apr 9, 10:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Apr 17, 2:05 AM CDT | Dense Fog Advisory | ILX | 7 hr |
| Apr 22, 3:04 PM CDT | Frost Advisory | ILX | 17 hr |
| Apr 23, 3:39 PM CDT | Frost Advisory | ILX | 16 hr |
| Apr 25, 12:55 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 25, 3:25 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 8, 12:59 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 10, 6:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| May 11, 8:50 AM CDT | River Flood Warning | ILX | 5 days |
| May 15, 5:01 PM CDT | Special Weather Statement | ILX | 29 min |
| May 24, 10:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| May 27, 7:57 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 30, 10:51 AM CDT | Mesoscale Discussion | SPC | 114 min |
| May 30, 6:23 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Jun 7, 7:48 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 8, 4:39 AM CDT | River Flood Warning | ILX | 29 days |
| Jun 16, 3:14 AM CDT | Flash Flood Watch | ILX | 40 hr |
| Jun 18, 3:19 PM CDT | Flash Flood Watch | ILX | 35 hr |
| Jun 19, 5:33 AM CDT | Flash Flood Warning | ILX | 6 hr |
| Jun 19, 12:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 19, 1:37 PM CDT | Flash Flood Warning | ILX | 5 hr |
| Jun 19, 4:45 PM CDT | Tornado Warning | ILX | 45 min |
| Jun 19, 5:13 PM CDT | Tornado Warning | ILX | 47 min |
| Jun 19, 6:27 PM CDT | Areal Flood Warning | ILX | 15 hr |
| Jun 20, 9:33 AM CDT | Areal Flood Warning | ILX | 3 hr |
| Jun 20, 11:28 PM CDT | Special Weather Statement | ILX | 62 min |
| Jun 21, 11:38 PM CDT | Flash Flood Warning | ILX | 6 hr |
| Jun 25, 3:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 4:53 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 25, 9:50 PM CDT | Special Weather Statement | ILX | 25 min |
| Jun 25, 10:05 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 26, 4:05 AM CDT | Flash Flood Watch | ILX | 18 hr |
| Jun 26, 11:50 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Jun 26, 6:18 PM CDT | Areal Flood Advisory | ILX | 3 hr |
| Jun 28, 9:39 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jul 3, 5:11 PM CDT | Flash Flood Warning | ILX | 3 hr |
| Jul 7, 2:46 PM CDT | Flash Flood Watch | ILX | 39 hr |
| Jul 8, 3:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 8, 6:05 PM CDT | Tornado Watch | SPC | 7 hr |
| Jul 8, 9:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 9, 10:14 AM CDT | River Flood Warning | ILX | 3 days |
| Jul 11, 3:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 12, 3:27 PM CDT | Flash Flood Watch | ILX | 31 hr |
| Jul 12, 9:42 PM CDT | River Flood Warning | ILX | 9 hr |
| Jul 13, 9:17 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 13, 6:59 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 13, 7:22 PM CDT | Tornado Watch | SPC | 7 hr |
| Jul 14, 12:56 AM CDT | Mesoscale Discussion | SPC | 64 min |
| Jul 14, 2:06 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 17, 10:16 AM CDT | Heat Advisory | ILX | 33 hr |
| Jul 27, 3:01 PM CDT | Heat Advisory | ILX | 29 hr |
| Aug 8, 2:54 AM CDT | Dense Fog Advisory | ILX | 6 hr |
| Aug 18, 6:35 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Sep 10, 3:45 AM CDT | Dense Fog Advisory | ILX | 4 hr |
| Oct 16, 2:45 AM CDT | Freeze Watch | ILX | 11 hr |
| Oct 16, 2:45 AM CDT | Freeze Warning | ILX | 30 hr |
| Oct 17, 2:33 PM CDT | Freeze Warning | ILX | 18 hr |
| Nov 1, 5:58 AM CST | Dense Fog Advisory | ILX | 3 hr |
| Nov 1, 11:06 PM CST | Dense Fog Advisory | ILX | 8 hr |
| Nov 2, 6:58 AM CST | Dense Fog Advisory | ILX | 3 hr |
| Nov 2, 7:59 PM CST | Dense Fog Advisory | ILX | 14 hr |
| Nov 3, 7:16 PM CST | Dense Fog Advisory | ILX | 15 hr |
| Nov 10, 2:12 AM CST | Dense Fog Advisory | ILX | 7 hr |
| Nov 16, 3:08 AM CST | Flood Watch | ILX | 51 hr |
| Nov 18, 7:45 AM CST | River Flood Warning | ILX | 4 days |
| Nov 27, 11:22 PM CST | River Flood Warning | ILX | 5 days |
| Dec 4, 1:52 AM CST | Dense Fog Advisory | ILX | 11 hr |
| Dec 4, 5:53 PM CST | Dense Fog Advisory | ILX | 18 hr |
| Dec 11, 3:03 AM CST | Dense Fog Advisory | ILX | 8 hr |
| Dec 23, 9:05 AM CST | Mesoscale Discussion | SPC | 85 min |
| Dec 23, 9:13 AM CST | Tornado Watch | SPC | 8 hr |
| Dec 23, 9:31 AM CST | River Flood Warning | ILX | 12 days |
| Dec 23, 11:59 AM CST | Severe Thunderstorm Warning | ILX | 31 min |
| Dec 23, 12:06 PM CST | Mesoscale Discussion | SPC | 84 min |
| Dec 23, 12:41 PM CST | Severe Thunderstorm Warning | ILX | 34 min |
| Dec 25, 3:27 AM CST | Flash Flood Watch | ILX | 5 days |
| Dec 28, 11:51 AM CST | Areal Flood Warning | ILX | 24 hr |
| Dec 29, 11:46 AM CST | Areal Flood Warning | ILX | 24 hr |
| Dec 30, 10:17 AM CST | Flash Flood Warning | ILX | 14 hr |
| Dec 30, 11:57 AM CST | Areal Flood Warning | ILX | 24 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 archive20142016
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.