Alert archive / Missouri / Shannon County
Weather alerts in Shannon County, Missouri, 2013
155 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Shannon County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 155
- Warnings
- 45
- Watches
- 24
- Advisories
- 43
- Busiest month
- August32 alerts
- Busiest day
- June 1, 201310 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 Shannon County in 2013 had a tornado report inside them.
Shannon County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 10 | 2 | 80% | 1 | 100% | 37 min |
| Flash flood warnings | 11 | 8 | 27% | 3 | 0% |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Springfield, MO: tornado warnings | 35 | 9 | 74% | 21 | 52% | 12 min |
| NWS Springfield, MO: severe thunderstorm warnings | 236 | 123 | 48% | 320 | 77% | 24 min |
| NWS Springfield, MO: flash flood warnings | 115 | 88 | 23% | 255 | 92% | 160 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 |
|---|---|---|---|
| Dec 31, 11:26 PM CST | Dense Fog Advisory | SGF | 7 hr |
| Jan 10, 5:40 PM CST | Mesoscale Discussion | SPC | 2 hr |
| Jan 12, 3:55 AM CST | Winter Weather Advisory | SGF | 31 hr |
| Jan 12, 6:17 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 13, 8:46 AM CST | Areal Flood Advisory | SGF | 6 hr |
| Jan 29, 11:54 AM CST | Mesoscale Discussion | SPC | 96 min |
| Jan 29, 12:35 PM CST | Tornado Watch | SPC | 7 hr |
| Jan 29, 3:31 PM CST | Mesoscale Discussion | SPC | 89 min |
| Feb 12, 10:39 AM CST | Winter Weather Advisory | SGF | 19 hr |
| Feb 19, 4:40 AM CST | Winter Storm Watch | SGF | 24 hr |
| Feb 20, 4:20 AM CST | Winter Storm Warning | SGF | 38 hr |
| Feb 21, 9:27 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 21, 5:44 PM CST | Winter Weather Advisory | SGF | 4 hr |
| Feb 26, 10:07 AM CST | Areal Flood Warning | SGF | 24 hr |
| Mar 10, 7:59 PM CDT | Areal Flood Advisory | SGF | 12 hr |
| Mar 11, 7:30 AM CDT | Areal Flood Advisory | SGF | 8 hr |
| Mar 17, 11:57 PM CDT | Areal Flood Warning | SGF | 12 hr |
| Mar 18, 11:45 AM CDT | Areal Flood Advisory | SGF | 24 hr |
| Mar 19, 3:41 PM CDT | Winter Storm Watch | SGF | 24 hr |
| Mar 20, 3:43 PM CDT | Winter Weather Advisory | SGF | 39 hr |
| Mar 23, 4:03 AM CDT | Winter Weather Advisory | SGF | 39 hr |
| Apr 7, 2:19 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 7, 8:38 PM CDT | Mesoscale Discussion | SPC | 37 min |
| Apr 10, 10:19 AM CDT | Flood Watch | SGF | 12 hr |
| Apr 10, 1:03 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Apr 10, 1:46 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 10, 3:01 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Apr 10, 6:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Apr 11, 4:08 AM CDT | Frost Advisory | SGF | 28 hr |
| Apr 12, 4:05 AM CDT | Frost Advisory | SGF | 28 hr |
| Apr 15, 8:59 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Apr 18, 4:02 AM CDT | Mesoscale Discussion | SPC | 58 min |
| Apr 18, 7:26 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 18, 9:25 AM CDT | Tornado Watch | SPC | 8 hr |
| Apr 18, 10:27 AM CDT | Severe Thunderstorm Warning | SGF | 33 min |
| Apr 18, 11:09 AM CDT | Flash Flood Warning | SGF | 6 hr |
| Apr 18, 5:02 PM CDT | Areal Flood Warning | SGF | 18 hr |
| Apr 18, 5:08 PM CDT | River Flood Warning | SGF | 25 hr |
| Apr 19, 3:33 AM CDT | Frost Advisory | SGF | 28 hr |
| Apr 19, 11:02 AM CDT | Areal Flood Advisory | SGF | 6 hr |
| Apr 24, 2:16 PM CDT | Frost Advisory | SGF | 18 hr |
| Apr 26, 7:17 PM CDT | Areal Flood Advisory | SGF | 15 hr |
| Apr 27, 10:02 AM CDT | Areal Flood Advisory | SGF | 25 hr |
| May 2, 2:32 PM CDT | Flood Watch | SGF | 33 hr |
| May 18, 2:12 AM CDT | Dense Fog Advisory | SGF | 7 hr |
| May 20, 4:44 AM CDT | Flash Flood Watch | SGF | 23 hr |
| May 20, 6:53 PM CDT | Mesoscale Discussion | SPC | 67 min |
| May 20, 7:39 PM CDT | Tornado Watch | SPC | 6 hr |
| May 20, 9:44 PM CDT | Severe Thunderstorm Warning | SGF | 61 min |
| May 20, 11:10 PM CDT | Severe Thunderstorm Warning | SGF | 65 min |
| May 30, 4:03 AM CDT | Flash Flood Watch | SGF | 51 hr |
| May 30, 11:29 AM CDT | Mesoscale Discussion | SPC | 61 min |
| May 30, 1:21 PM CDT | Tornado Watch | SPC | 8 hr |
| May 30, 4:11 PM CDT | Special Weather Statement | SGF | 34 min |
| May 31, 12:04 AM CDT | Special Weather Statement | SGF | 41 min |
| May 31, 12:48 AM CDT | Severe Thunderstorm Warning | SGF | 57 min |
| May 31, 12:51 AM CDT | Tornado Warning | SGF | 39 min |
| May 31, 1:12 AM CDT | Flash Flood Warning | SGF | 6 hr |
| May 31, 6:51 AM CDT | Areal Flood Warning | SGF | 12 hr |
| May 31, 8:46 PM CDT | Mesoscale Discussion | SPC | 59 min |
| May 31, 9:37 PM CDT | Tornado Watch | SPC | 6 hr |
| May 31, 11:09 PM CDT | Flash Flood Warning | SGF | 9 hr |
| Jun 1, 1:51 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 1, 3:29 AM CDT | Flash Flood Warning | SGF | 6 hr |
| Jun 1, 7:43 AM CDT | Areal Flood Warning | SGF | 4 hr |
| Jun 1, 10:34 AM CDT | River Flood Warning | SGF | 20 hr |
| Jun 1, 12:02 PM CDT | Areal Flood Warning | SGF | 8 hr |
| Jun 1, 12:03 PM CDT | Areal Flood Warning | SGF | 23 hr |
| Jun 1, 4:33 PM CDT | River Flood Warning | SGF | 33 hr |
| Jun 2, 11:01 AM CDT | Areal Flood Advisory | SGF | 9 hr |
| Jun 9, 1:28 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Jun 17, 7:13 PM CDT | Areal Flood Advisory | SGF | 6 hr |
| Jun 22, 3:38 PM CDT | Severe Thunderstorm Warning | SGF | 52 min |
| Jun 22, 4:19 PM CDT | Special Weather Statement | SGF | 56 min |
| Jun 28, 12:09 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 28, 1:04 AM CDT | Mesoscale Discussion | SPC | 56 min |
| Jun 28, 2:53 AM CDT | Severe Thunderstorm Warning | SGF | 67 min |
| Jun 29, 6:50 PM CDT | Special Weather Statement | SGF | 25 min |
| Jun 29, 7:11 PM CDT | Special Weather Statement | SGF | 49 min |
| Jul 6, 4:11 PM CDT | Special Weather Statement | SGF | 34 min |
| Jul 6, 4:15 PM CDT | Severe Thunderstorm Warning | SGF | 30 min |
| Jul 10, 3:53 AM CDT | Heat Advisory | SGF | 15 hr |
| Jul 20, 3:12 PM CDT | Special Weather Statement | SGF | 33 min |
| Jul 23, 12:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 23, 3:02 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 4:16 PM CDT | Severe Thunderstorm Warning | SGF | 44 min |
| Jul 23, 5:34 PM CDT | Severe Thunderstorm Warning | SGF | 26 min |
| Jul 23, 5:51 PM CDT | Areal Flood Advisory | SGF | 6 hr |
| Jul 23, 5:56 PM CDT | Special Weather Statement | SGF | 34 min |
| Jul 23, 7:13 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 26, 11:39 PM CDT | Dense Fog Advisory | SGF | 7 hr |
| Jul 30, 3:23 PM CDT | Dense Fog Advisory | SGF | 17 hr |
| Aug 2, 3:20 AM CDT | Flash Flood Watch | SGF | 8 days |
| Aug 2, 9:47 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Aug 2, 11:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Aug 3, 1:15 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Aug 3, 1:29 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 5, 8:56 AM CDT | Areal Flood Warning | SGF | 8 hr |
| Aug 5, 5:13 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 6, 1:33 AM CDT | Flash Flood Warning | SGF | 6 hr |
| Aug 6, 5:51 AM CDT | Flash Flood Warning | SGF | 6 hr |
| Aug 6, 7:56 AM CDT | Areal Flood Warning | SGF | 12 hr |
| Aug 6, 12:04 PM CDT | Areal Flood Warning | SGF | 12 hr |
| Aug 6, 3:11 PM CDT | River Flood Warning | SGF | 17 hr |
| Aug 7, 2:12 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 7, 2:45 AM CDT | Flash Flood Warning | SGF | 5 hr |
| Aug 7, 6:21 AM CDT | Severe Thunderstorm Warning | SGF | 39 min |
| Aug 7, 6:36 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Aug 7, 6:50 AM CDT | Areal Flood Advisory | SGF | 3 hr |
| Aug 7, 6:51 AM CDT | Special Weather Statement | SGF | 39 min |
| Aug 7, 8:01 AM CDT | Flash Flood Warning | SGF | 4 hr |
| Aug 7, 9:51 AM CDT | Areal Flood Advisory | SGF | 6 hr |
| Aug 7, 11:53 AM CDT | Areal Flood Warning | SGF | 24 hr |
| Aug 7, 2:40 PM CDT | River Flood Warning | SGF | 18 hr |
| Aug 8, 11:53 AM CDT | Areal Flood Warning | SGF | 21 hr |
| Aug 9, 8:53 AM CDT | Areal Flood Advisory | SGF | 24 hr |
| Aug 9, 11:28 PM CDT | Flash Flood Warning | SGF | 9 hr |
| Aug 10, 1:07 AM CDT | Flash Flood Warning | SGF | 7 hr |
| Aug 10, 2:46 AM CDT | Flash Flood Warning | SGF | 7 hr |
| Aug 10, 6:40 AM CDT | River Flood Warning | SGF | 19 hr |
| Aug 10, 8:15 AM CDT | Areal Flood Warning | SGF | 13 hr |
| Aug 10, 8:27 PM CDT | Areal Flood Advisory | SGF | 21 hr |
| Aug 12, 3:33 AM CDT | Flash Flood Watch | SGF | 24 hr |
| Aug 12, 10:57 AM CDT | Mesoscale Discussion | SPC | 93 min |
| Sep 1, 8:56 AM CDT | Mesoscale Discussion | SPC | 64 min |
| Oct 1, 7:20 AM CDT | Dense Fog Advisory | SGF | 3 hr |
| Oct 22, 3:15 AM CDT | Frost Advisory | SGF | 30 hr |
| Oct 22, 3:04 PM CDT | Freeze Watch | SGF | 36 hr |
| Oct 23, 3:19 PM CDT | Freeze Warning | SGF | 42 hr |
| Oct 28, 4:09 AM CDT | Dense Fog Advisory | SGF | 8 hr |
| Oct 29, 3:22 PM CDT | Flash Flood Watch | SGF | 46 hr |
| Oct 31, 12:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Oct 31, 2:54 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Nov 17, 10:17 AM CST | Mesoscale Discussion | SPC | 118 min |
| Nov 21, 10:28 AM CST | Areal Flood Advisory | SGF | 3 hr |
| Nov 21, 12:58 PM CST | Areal Flood Advisory | SGF | 6 hr |
| Nov 25, 7:30 AM CST | Winter Weather Advisory | SGF | 7 hr |
| Dec 2, 11:10 PM CST | Dense Fog Advisory | SGF | 11 hr |
| Dec 3, 9:16 PM CST | Dense Fog Advisory | SGF | 13 hr |
| Dec 4, 3:32 AM CST | Winter Storm Watch | SGF | 11 hr |
| Dec 4, 2:55 PM CST | Winter Storm Warning | SGF | 48 hr |
| Dec 5, 7:07 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 5, 12:00 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 5, 6:25 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 6, 11:31 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 6, 3:24 PM CST | Wind Chill Advisory | SGF | 19 hr |
| Dec 8, 7:17 AM CST | Winter Weather Advisory | SGF | 8 hr |
| Dec 8, 6:17 PM CST | Winter Weather Advisory | SGF | 9 hr |
| Dec 9, 3:24 AM CST | Winter Weather Advisory | SGF | 24 hr |
| Dec 12, 2:59 PM CST | Winter Weather Advisory | SGF | 43 hr |
| Dec 13, 11:31 PM CST | Mesoscale Discussion | SPC | 5 hr |
| Dec 19, 3:28 AM CST | Flood Watch | SGF | 63 hr |
| Dec 21, 6:21 AM CST | Areal Flood Warning | SGF | 28 hr |
| Dec 22, 9:53 AM CST | Areal Flood Advisory | SGF | 6 hr |
| Dec 22, 10:17 AM CST | Areal Flood Advisory | SGF | 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 archive20122014
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.