Alert archive / Missouri / Shelby County
Weather alerts in Shelby County, Missouri, 2008
167 weather alerts in 2008, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Shelby County and its neighbors
Each county as a circle sized by its count in 2008. Tap one for its archive.
- Alerts
- 167
- Warnings
- 54
- Watches
- 43
- Advisories
- 31
- Busiest month
- June39 alerts
- Busiest day
- June 3, 20089 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 7 tornado warnings covering Shelby County in 2008 had a tornado report inside them.
Shelby County, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 7 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 23 | 7 | 70% | 8 | 63% | 13 min |
| Flash flood warnings | 8 | 3 | 63% | 4 | 100% | 93 min |
Each office's whole area, 2008
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS St. Louis, MO: tornado warnings | 98 | 15 | 85% | 34 | 65% | 23 min |
| NWS St. Louis, MO: severe thunderstorm warnings | 467 | 151 | 68% | 450 | 74% | 23 min |
| NWS St. Louis, MO: flash flood warnings | 100 | 35 | 65% | 145 | 77% | 155 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, 1:47 PM CST | Mesoscale Discussion | SPC | 58 min |
| Jan 7, 1:52 PM CST | Tornado Watch | SPC | 146 days |
| Jan 7, 4:34 PM CST | Mesoscale Discussion | SPC | 86 min |
| Jan 7, 6:11 PM CST | Mesoscale Discussion | SPC | 94 min |
| Jan 7, 7:48 PM CST | Tornado Watch | SPC | 9 hr |
| Jan 18, 3:56 PM CST | Wind Chill Advisory | LSX | 19 hr |
| Jan 21, 4:12 PM CST | Winter Weather Advisory | LSX | 12 hr |
| Jan 23, 3:23 PM CST | Wind Chill Advisory | LSX | 19 hr |
| Jan 27, 2:59 PM CST | Wind Advisory | LSX | 29 hr |
| Jan 28, 8:10 PM CST | Wind Advisory | LSX | 25 hr |
| Feb 3, 12:10 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 3, 8:50 PM CST | Dense Fog Advisory | LSX | 15 hr |
| Feb 4, 3:32 PM CST | Winter Storm Watch | LSX | 13 hr |
| Feb 4, 6:20 PM CST | Mesoscale Discussion | SPC | 85 min |
| Feb 5, 4:20 AM CST | Winter Weather Advisory | LSX | 35 hr |
| Feb 15, 3:10 PM CST | Flash Flood Watch | LSX | 45 hr |
| Feb 19, 3:48 PM CST | Wind Chill Advisory | LSX | 19 hr |
| Feb 21, 4:00 AM CST | Winter Weather Advisory | LSX | 24 hr |
| Feb 25, 3:21 PM CST | Snow and Blowing Snow Advisory | LSX | 13 hr |
| Mar 2, 4:06 AM CST | Flood Watch | LSX | 35 hr |
| Mar 14, 3:48 AM CDT | Dense Fog Advisory | LSX | 7 hr |
| Mar 16, 3:10 PM CDT | Flood Watch | LSX | 64 hr |
| Mar 31, 6:33 AM CDT | Severe Thunderstorm Warning | LSX | 42 min |
| Mar 31, 7:06 AM CDT | Severe Thunderstorm Warning | LSX | 24 min |
| Mar 31, 1:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 7, 3:03 PM CDT | Flash Flood Watch | LSX | 24 hr |
| Apr 9, 4:15 AM CDT | Flash Flood Watch | LSX | 41 hr |
| Apr 10, 4:43 PM CDT | Severe Thunderstorm Warning | LSX | 47 min |
| Apr 10, 4:55 PM CDT | Tornado Watch | SPC | 5 hr |
| Apr 10, 6:44 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Apr 16, 3:59 AM CDT | Wind Advisory | LSX | 11 hr |
| Apr 24, 3:08 AM CDT | Flood Watch | LSX | 7 hr |
| Apr 25, 4:51 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 25, 12:21 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Apr 25, 1:27 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 28, 3:16 AM CDT | Frost Advisory | LSX | 29 hr |
| May 1, 11:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| May 2, 4:42 AM CDT | Severe Thunderstorm Warning | LSX | 36 min |
| May 2, 5:00 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 3, 4:03 PM CDT | Frost Advisory | LSX | 16 hr |
| May 10, 12:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| May 10, 3:30 PM CDT | Wind Advisory | LSX | 28 hr |
| May 13, 9:50 AM CDT | Severe Thunderstorm Warning | LSX | 40 min |
| May 13, 10:02 AM CDT | Tornado Warning | LSX | 28 min |
| May 13, 10:30 AM CDT | Severe Thunderstorm Warning | LSX | 45 min |
| May 13, 10:38 PM CDT | Mesoscale Discussion | SPC | 97 min |
| May 25, 12:53 PM CDT | Mesoscale Discussion | SPC | 67 min |
| May 25, 3:57 PM CDT | Flash Flood Watch | LSX | 71 hr |
| May 25, 3:58 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 25, 6:39 PM CDT | Mesoscale Discussion | SPC | 66 min |
| May 30, 7:56 AM CDT | Tornado Watch | SPC | 6 hr |
| May 30, 1:56 PM CDT | Tornado Watch | SPC | 8 hr |
| May 30, 4:57 PM CDT | Severe Thunderstorm Warning | LSX | 48 min |
| May 30, 5:18 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 2, 5:51 PM CDT | Severe Thunderstorm Warning | LSX | 39 min |
| Jun 2, 8:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 2, 9:15 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 3, 3:31 AM CDT | Tornado Watch | SPC | 10 hr |
| Jun 3, 7:17 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 3, 8:46 AM CDT | Severe Thunderstorm Warning | LSX | 59 min |
| Jun 3, 8:59 AM CDT | Severe Thunderstorm Warning | LSX | 47 min |
| Jun 3, 3:35 PM CDT | Flash Flood Watch | LSX | 24 hr |
| Jun 3, 3:40 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 3, 5:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 3, 7:28 PM CDT | Severe Thunderstorm Warning | LSX | 47 min |
| Jun 3, 8:00 PM CDT | Severe Thunderstorm Warning | LSX | 35 min |
| Jun 3, 8:09 PM CDT | Severe Thunderstorm Warning | LSX | 44 min |
| Jun 3, 8:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 3, 9:01 PM CDT | Flash Flood Warning | LSX | 6 hr |
| Jun 4, 2:50 AM CDT | Areal Flood Warning | LSX | 8 hr |
| Jun 4, 10:41 AM CDT | Areal Flood Warning | LSX | 12 hr |
| Jun 4, 10:54 PM CDT | Areal Flood Warning | LSX | 12 hr |
| Jun 5, 9:43 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 8, 3:50 AM CDT | Flash Flood Watch | LSX | 41 hr |
| Jun 8, 5:26 PM CDT | Mesoscale Discussion | SPC | 34 min |
| Jun 8, 5:36 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 8, 9:24 PM CDT | Areal Flood Advisory | LSX | 6 hr |
| Jun 8, 10:01 PM CDT | Mesoscale Discussion | SPC | 59 min |
| Jun 8, 10:17 PM CDT | Flash Flood Warning | LSX | 6 hr |
| Jun 12, 12:37 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jun 12, 3:06 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 12, 3:37 PM CDT | Flash Flood Watch | LSX | 24 hr |
| Jun 12, 8:18 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 12, 10:11 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 13, 12:53 AM CDT | Flash Flood Warning | LSX | 6 hr |
| Jun 15, 11:17 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 15, 11:42 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 24, 8:17 PM CDT | Severe Thunderstorm Warning | LSX | 43 min |
| Jun 24, 10:21 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jun 25, 2:35 AM CDT | Flash Flood Warning | LSX | 12 hr |
| Jun 25, 11:53 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 26, 1:14 AM CDT | Severe Thunderstorm Warning | LSX | 61 min |
| Jun 27, 8:13 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 8, 1:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jul 8, 1:54 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 8, 2:41 PM CDT | Areal Flood Advisory | LSX | 6 hr |
| Jul 8, 8:25 PM CDT | Areal Flood Warning | LSX | 12 hr |
| Jul 20, 10:17 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 21, 1:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 21, 5:10 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 21, 7:16 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 21, 8:24 PM CDT | Tornado Warning | LSX | 51 min |
| Jul 21, 8:46 PM CDT | Severe Thunderstorm Warning | LSX | 44 min |
| Jul 21, 9:16 PM CDT | Severe Thunderstorm Warning | LSX | 44 min |
| Jul 22, 3:18 AM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 24, 4:12 PM CDT | Flash Flood Watch | LSX | 24 hr |
| Jul 24, 10:23 PM CDT | Flash Flood Warning | LSX | 12 hr |
| Jul 24, 11:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 25, 10:23 AM CDT | Areal Flood Warning | LSX | 8 hr |
| Jul 25, 6:10 PM CDT | Areal Flood Warning | LSX | 12 hr |
| Jul 26, 6:05 AM CDT | Areal Flood Warning | LSX | 8 hr |
| Jul 26, 2:01 PM CDT | Areal Flood Warning | LSX | 6 hr |
| Jul 26, 8:05 PM CDT | Areal Flood Warning | LSX | 12 hr |
| Jul 27, 7:50 AM CDT | Areal Flood Warning | LSX | 14 hr |
| Jul 27, 3:45 PM CDT | Flash Flood Watch | LSX | 18 hr |
| Jul 27, 4:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 27, 5:27 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 27, 7:02 PM CDT | Severe Thunderstorm Warning | LSX | 58 min |
| Jul 27, 8:20 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jul 27, 8:53 PM CDT | Severe Thunderstorm Warning | LSX | 37 min |
| Jul 27, 9:07 PM CDT | Tornado Warning | LSX | 38 min |
| Jul 28, 1:23 AM CDT | Mesoscale Discussion | SPC | 97 min |
| Jul 29, 2:32 PM CDT | Severe Thunderstorm Warning | LSX | 43 min |
| Jul 29, 3:05 PM CDT | Flash Flood Warning | LSX | 4 hr |
| Jul 29, 3:11 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 29, 4:19 PM CDT | Flash Flood Watch | LSX | 19 hr |
| Jul 30, 2:29 AM CDT | Flash Flood Warning | LSX | 6 hr |
| Jul 31, 12:06 AM CDT | Dense Fog Advisory | LSX | 9 hr |
| Aug 3, 4:07 AM CDT | Heat Advisory | LSX | 63 hr |
| Aug 13, 3:22 AM CDT | Dense Fog Advisory | LSX | 5 hr |
| Aug 28, 2:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Aug 28, 3:22 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 28, 6:11 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 28, 6:21 PM CDT | Severe Thunderstorm Warning | LSX | 24 min |
| Aug 28, 6:40 PM CDT | Severe Thunderstorm Warning | LSX | 50 min |
| Sep 2, 3:57 PM CDT | Flash Flood Watch | LSX | 46 hr |
| Sep 6, 5:47 AM CDT | Dense Fog Advisory | LSX | 3 hr |
| Sep 9, 4:00 AM CDT | Dense Fog Advisory | LSX | 5 hr |
| Sep 12, 12:07 PM CDT | Flash Flood Watch | LSX | 47 hr |
| Sep 13, 4:35 PM CDT | Areal Flood Warning | LSX | 18 hr |
| Sep 14, 10:20 AM CDT | Areal Flood Warning | LSX | 12 hr |
| Sep 14, 9:37 PM CDT | Areal Flood Warning | LSX | 12 hr |
| Oct 25, 3:50 PM CDT | Freeze Watch | LSX | 12 hr |
| Oct 25, 3:50 PM CDT | Wind Advisory | LSX | 29 hr |
| Oct 26, 3:36 AM CDT | Freeze Warning | LSX | 24 hr |
| Oct 27, 3:16 AM CDT | Freeze Warning | LSX | 30 hr |
| Nov 1, 10:05 PM CDT | Dense Fog Advisory | LSX | 12 hr |
| Nov 29, 3:39 PM CST | Winter Weather Advisory | LSX | 33 hr |
| Dec 14, 3:36 PM CST | Winter Weather Advisory | LSX | 20 hr |
| Dec 14, 5:47 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 15, 4:07 PM CST | Winter Weather Advisory | LSX | 28 hr |
| Dec 17, 4:09 PM CST | Freezing Rain Advisory | LSX | 32 hr |
| Dec 18, 4:34 AM CST | Ice Storm Warning | LSX | 24 hr |
| Dec 18, 6:46 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Dec 19, 3:41 PM CST | Wind Chill Advisory | LSX | 65 hr |
| Dec 22, 3:57 PM CST | Winter Weather Advisory | LSX | 43 hr |
| Dec 25, 3:56 PM CST | Flash Flood Watch | LSX | 50 hr |
| Dec 26, 11:15 PM CST | Mesoscale Discussion | SPC | 90 min |
| Dec 27, 12:44 AM CST | Tornado Warning | LSX | 46 min |
| Dec 27, 1:31 AM CST | Tornado Warning | LSX | 44 min |
| Dec 27, 1:35 AM CST | Tornado Watch | SPC | 7 hr |
| Dec 27, 2:37 AM CST | Flash Flood Warning | LSX | 6 hr |
| Dec 27, 4:30 AM CST | Tornado Watch | SPC | 8 hr |
| Dec 27, 8:46 AM CST | Severe Thunderstorm Warning | LSX | 29 min |
| Dec 27, 9:05 AM CST | Tornado Warning | LSX | 25 min |
| Dec 27, 9:14 AM CST | Tornado Warning | LSX | 31 min |
| Dec 30, 3:32 PM CST | Wind Advisory | LSX | 11 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 23 |
| Tornado Warning | 7 |
| Severe Thunderstorm Watch | 14 |
| Tornado Watch | 11 |
| Mesoscale Discussion | 39 |
| Flooding | |
| Areal Flood Warning | 13 |
| Flash Flood Warning | 8 |
| Flash Flood Watch | 13 |
| Flood Watch | 3 |
| Areal Flood Advisory | 2 |
| Winter | |
| Ice Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Freezing Rain Advisory | 1 |
| Snow and Blowing Snow Advisory | 1 |
| Winter Weather Advisory | 7 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 4 |
| Wind and dust | |
| Wind Advisory | 6 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20072009
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.