Alert archive / Missouri / Shannon County
Weather alerts in Shannon County, Missouri, 2019
173 weather alerts in 2019, 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 2019. Tap one for its archive.
- Alerts
- 173
- Warnings
- 59
- Watches
- 29
- Advisories
- 47
- Busiest month
- May39 alerts
- Busiest day
- May 21, 201912 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 3 tornado warnings covering Shannon County in 2019 had a tornado report inside them.
Shannon County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 1 | 67% | 0 | ||
| Severe thunderstorm warnings | 24 | 15 | 38% | 7 | 100% | 25 min |
| Flash flood warnings | 7 | 4 | 43% | 1 | 100% | 174 min |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Springfield, MO: tornado warnings | 115 | 46 | 60% | 88 | 76% | 16 min |
| NWS Springfield, MO: severe thunderstorm warnings | 382 | 212 | 45% | 582 | 82% | 23 min |
| NWS Springfield, MO: flash flood warnings | 122 | 78 | 36% | 168 | 88% | 112 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 4, 9:44 AM CST | Areal Flood Warning | SGF | 4 hr |
| Jan 4, 1:42 PM CST | Areal Flood Warning | SGF | 4 hr |
| Jan 4, 4:50 PM CST | Areal Flood Advisory | SGF | 18 hr |
| Jan 10, 3:00 AM CST | Winter Storm Watch | SGF | 12 hr |
| Jan 10, 3:27 PM CST | Winter Weather Advisory | SGF | 63 hr |
| Jan 11, 10:37 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 18, 3:05 AM CST | Winter Weather Advisory | SGF | 42 hr |
| Jan 19, 2:52 AM CST | Wind Advisory | SGF | 15 hr |
| Jan 28, 2:05 PM CST | Wind Chill Advisory | SGF | 46 hr |
| Jan 29, 10:00 PM CST | Winter Weather Advisory | SGF | 7 hr |
| Jan 31, 2:02 PM CST | Winter Weather Advisory | SGF | 13 hr |
| Feb 2, 2:01 AM CST | Dense Fog Advisory | SGF | 8 hr |
| Feb 5, 1:35 PM CST | Dense Fog Advisory | SGF | 35 hr |
| Feb 5, 2:47 PM CST | Flood Watch | SGF | 45 hr |
| Feb 7, 12:50 AM CST | Mesoscale Discussion | SPC | 55 min |
| Feb 7, 2:21 AM CST | Severe Thunderstorm Watch | SPC | 6 hr |
| Feb 7, 5:37 AM CST | Severe Thunderstorm Warning | SGF | 23 min |
| Feb 7, 8:55 AM CST | Areal Flood Warning | SGF | 8 hr |
| Feb 7, 9:42 AM CST | Areal Flood Warning | SGF | 10 hr |
| Feb 7, 4:44 PM CST | Areal Flood Warning | SGF | 17 hr |
| Feb 8, 9:39 AM CST | Areal Flood Warning | SGF | 11 hr |
| Feb 9, 3:22 AM CST | Winter Weather Advisory | SGF | 33 hr |
| Feb 9, 2:55 PM CST | Flood Watch | SGF | 60 hr |
| Feb 10, 1:15 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 11, 7:57 AM CST | Areal Flood Warning | SGF | 8 hr |
| Feb 11, 3:51 PM CST | Areal Flood Advisory | SGF | 18 hr |
| Feb 12, 10:52 AM CST | Areal Flood Advisory | SGF | 24 hr |
| Feb 14, 11:51 AM CST | Winter Weather Advisory | SGF | 35 hr |
| Feb 16, 3:22 AM CST | Winter Weather Advisory | SGF | 31 hr |
| Feb 18, 2:51 PM CST | Winter Weather Advisory | SGF | 42 hr |
| Feb 22, 10:36 PM CST | Dense Fog Advisory | SGF | 13 hr |
| Feb 23, 2:28 AM CST | Wind Advisory | SGF | 28 hr |
| Feb 26, 2:37 PM CST | Winter Weather Advisory | SGF | 48 hr |
| Mar 1, 4:05 AM CST | Winter Storm Watch | SGF | 24 hr |
| Mar 2, 3:38 AM CST | Winter Weather Advisory | SGF | 32 hr |
| Mar 8, 9:01 AM CST | Dense Fog Advisory | SGF | 3 hr |
| Mar 8, 2:48 PM CST | Wind Advisory | SGF | 30 hr |
| Mar 9, 2:31 AM CST | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 12, 3:18 PM CDT | Wind Advisory | SGF | 52 hr |
| Mar 24, 1:53 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 24, 2:52 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 24, 3:56 PM CDT | Special Weather Statement | SGF | 34 min |
| Mar 24, 5:11 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 24, 6:56 PM CDT | Severe Thunderstorm Warning | SGF | 64 min |
| Mar 24, 8:01 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Apr 10, 3:12 PM CDT | Wind Advisory | SGF | 24 hr |
| Apr 14, 3:10 AM CDT | Frost Advisory | SGF | 29 hr |
| Apr 18, 1:15 AM CDT | Mesoscale Discussion | SPC | 60 min |
| Apr 18, 1:57 AM CDT | Flash Flood Watch | SGF | 17 hr |
| Apr 24, 12:21 PM CDT | Special Weather Statement | SGF | 39 min |
| Apr 25, 1:01 PM CDT | Areal Flood Warning | SGF | 10 hr |
| Apr 25, 11:10 PM CDT | Areal Flood Warning | SGF | 11 hr |
| Apr 29, 3:02 AM CDT | Flash Flood Watch | SGF | 4 days |
| Apr 30, 12:02 PM CDT | Tornado Watch | SPC | 13 hr |
| Apr 30, 6:00 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Apr 30, 9:37 PM CDT | River Flood Warning | SGF | 26 hr |
| Apr 30, 10:07 PM CDT | Severe Thunderstorm Warning | SGF | 53 min |
| Apr 30, 10:13 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Apr 30, 10:27 PM CDT | Tornado Warning | SGF | 33 min |
| Apr 30, 10:49 PM CDT | Severe Thunderstorm Warning | SGF | 56 min |
| Apr 30, 11:17 PM CDT | Areal Flood Warning | SGF | 36 hr |
| May 1, 8:24 AM CDT | River Flood Warning | SGF | 43 hr |
| May 2, 12:13 AM CDT | Severe Thunderstorm Warning | SGF | 47 min |
| May 2, 10:23 AM CDT | River Flood Warning | SGF | 30 hr |
| May 2, 10:23 AM CDT | River Flood Warning | SGF | 47 hr |
| May 2, 10:30 AM CDT | Areal Flood Warning | SGF | 24 hr |
| May 3, 3:18 AM CDT | Flash Flood Watch | SGF | 24 hr |
| May 4, 3:04 AM CDT | Dense Fog Advisory | SGF | 6 hr |
| May 7, 8:01 PM CDT | Severe Thunderstorm Warning | SGF | 44 min |
| May 7, 8:12 PM CDT | Severe Thunderstorm Warning | SGF | 48 min |
| May 7, 9:06 PM CDT | Flash Flood Warning | SGF | 10 hr |
| May 8, 1:32 PM CDT | Areal Flood Warning | SGF | 12 hr |
| May 18, 3:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| May 18, 4:40 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 18, 5:15 PM CDT | Severe Thunderstorm Warning | SGF | 60 min |
| May 19, 3:33 AM CDT | Flash Flood Watch | SGF | 63 hr |
| May 20, 8:20 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 21, 12:28 AM CDT | Severe Thunderstorm Warning | SGF | 62 min |
| May 21, 12:55 AM CDT | Mesoscale Discussion | SPC | 95 min |
| May 21, 1:11 AM CDT | Flash Flood Warning | SGF | 2 hr |
| May 21, 2:21 AM CDT | Flash Flood Warning | SGF | 4 hr |
| May 21, 3:25 AM CDT | Areal Flood Warning | SGF | 10 hr |
| May 21, 5:53 AM CDT | Areal Flood Warning | SGF | 29 hr |
| May 21, 10:25 AM CDT | River Flood Warning | SGF | 10 hr |
| May 21, 11:32 AM CDT | Tornado Watch | SPC | 7 hr |
| May 21, 1:20 PM CDT | Areal Flood Warning | SGF | 21 hr |
| May 21, 4:41 PM CDT | Severe Thunderstorm Warning | SGF | 49 min |
| May 21, 5:33 PM CDT | Special Weather Statement | SGF | 27 min |
| May 21, 7:02 PM CDT | Flood Watch | SGF | 5 hr |
| May 22, 10:31 AM CDT | Areal Flood Warning | SGF | 23 hr |
| May 22, 10:31 AM CDT | Areal Flood Warning | SGF | 12 hr |
| May 28, 2:31 PM CDT | Flash Flood Watch | SGF | 30 hr |
| May 29, 3:36 PM CDT | Special Weather Statement | SGF | 39 min |
| May 29, 4:27 PM CDT | Severe Thunderstorm Warning | SGF | 48 min |
| Jun 1, 2:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 4, 2:52 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 4, 4:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 4, 5:22 PM CDT | Severe Thunderstorm Warning | SGF | 38 min |
| Jun 6, 3:21 AM CDT | Flash Flood Watch | SGF | 23 hr |
| Jun 17, 8:19 AM CDT | Flash Flood Watch | SGF | 13 hr |
| Jun 17, 3:44 PM CDT | Flash Flood Warning | SGF | 4 hr |
| Jun 17, 7:25 PM CDT | Areal Flood Warning | SGF | 6 hr |
| Jun 18, 1:20 AM CDT | Dense Fog Advisory | SGF | 8 hr |
| Jun 21, 8:28 AM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 21, 2:24 PM CDT | Special Weather Statement | SGF | 66 min |
| Jun 21, 3:36 PM CDT | Severe Thunderstorm Warning | SGF | 39 min |
| Jun 22, 11:10 AM CDT | Special Weather Statement | SGF | 35 min |
| Jun 22, 2:57 PM CDT | Flash Flood Watch | SGF | 25 hr |
| Jun 23, 12:06 PM CDT | Special Weather Statement | SGF | 54 min |
| Jun 23, 12:27 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 23, 1:09 PM CDT | Severe Thunderstorm Warning | SGF | 66 min |
| Jun 23, 1:31 PM CDT | Areal Flood Advisory | SGF | 6 hr |
| Jun 26, 1:06 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jul 8, 7:51 PM CDT | Areal Flood Advisory | SGF | 4 hr |
| Jul 9, 2:55 PM CDT | Heat Advisory | SGF | 23 hr |
| Jul 10, 2:25 PM CDT | Special Weather Statement | SGF | 65 min |
| Jul 13, 2:55 PM CDT | Flash Flood Watch | SGF | 49 hr |
| Jul 16, 2:53 PM CDT | Heat Advisory | SGF | 5 days |
| Jul 17, 4:36 PM CDT | Flash Flood Warning | SGF | 6 hr |
| Jul 17, 9:26 PM CDT | Special Weather Statement | SGF | 49 min |
| Jul 17, 10:24 PM CDT | Areal Flood Advisory | SGF | 6 hr |
| Jul 21, 8:02 PM CDT | Flash Flood Watch | SGF | 11 hr |
| Jul 22, 1:58 AM CDT | Flash Flood Warning | SGF | 6 hr |
| Jul 22, 6:11 AM CDT | Areal Flood Warning | SGF | 10 hr |
| Aug 7, 11:35 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Aug 7, 12:01 PM CDT | Special Weather Statement | SGF | 59 min |
| Aug 7, 12:25 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 7, 5:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 10, 3:43 AM CDT | Dense Fog Advisory | SGF | 5 hr |
| Aug 10, 2:56 PM CDT | Heat Advisory | SGF | 54 hr |
| Aug 16, 4:28 AM CDT | Special Weather Statement | SGF | 62 min |
| Aug 18, 12:35 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Aug 18, 3:09 PM CDT | Heat Advisory | SGF | 52 hr |
| Aug 20, 3:44 PM CDT | Special Weather Statement | SGF | 46 min |
| Aug 20, 7:01 PM CDT | Heat Advisory | SGF | 25 hr |
| Aug 21, 5:30 PM CDT | Areal Flood Advisory | SGF | 4 hr |
| Aug 21, 6:05 PM CDT | Flash Flood Warning | SGF | 6 hr |
| Aug 26, 12:12 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 26, 2:20 PM CDT | Severe Thunderstorm Warning | SGF | 55 min |
| Aug 26, 2:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Aug 26, 3:10 PM CDT | Severe Thunderstorm Warning | SGF | 65 min |
| Aug 26, 4:13 PM CDT | Severe Thunderstorm Warning | SGF | 32 min |
| Aug 26, 10:49 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 27, 12:15 AM CDT | Severe Thunderstorm Warning | SGF | 45 min |
| Sep 1, 9:58 PM CDT | Dense Fog Advisory | SGF | 12 hr |
| Oct 11, 3:42 AM CDT | Frost Advisory | SGF | 10 hr |
| Oct 11, 1:13 PM CDT | Freeze Warning | SGF | 19 hr |
| Oct 15, 6:50 PM CDT | Severe Thunderstorm Warning | SGF | 40 min |
| Oct 20, 10:21 PM CDT | Tornado Watch | SPC | 5 hr |
| Oct 21, 2:26 AM CDT | Tornado Warning | SGF | 34 min |
| Oct 21, 2:29 AM CDT | Tornado Warning | SGF | 31 min |
| Oct 21, 2:38 AM CDT | Severe Thunderstorm Warning | SGF | 47 min |
| Oct 21, 2:58 AM CDT | Severe Thunderstorm Warning | SGF | 26 min |
| Oct 27, 1:43 AM CDT | Dense Fog Advisory | SGF | 9 hr |
| Nov 10, 2:34 PM CST | Winter Weather Advisory | SGF | 29 hr |
| Nov 26, 2:57 AM CST | Wind Advisory | SGF | 31 hr |
| Nov 26, 4:27 PM CST | Mesoscale Discussion | SPC | 63 min |
| Nov 26, 4:41 PM CST | Tornado Watch | SPC | 5 hr |
| Nov 26, 5:02 PM CST | Special Weather Statement | SGF | 43 min |
| Nov 26, 9:48 PM CST | Special Weather Statement | SGF | 27 min |
| Nov 29, 8:36 PM CST | Dense Fog Advisory | SGF | 6 hr |
| Nov 29, 11:06 PM CST | Severe Thunderstorm Warning | SGF | 39 min |
| Nov 30, 8:15 AM CST | Special Weather Statement | SGF | 45 min |
| Nov 30, 1:58 PM CST | Wind Advisory | SGF | 28 hr |
| Dec 8, 1:11 AM CST | Dense Fog Advisory | SGF | 8 hr |
| Dec 14, 4:02 AM CST | Winter Weather Advisory | SGF | 68 hr |
| Dec 16, 4:24 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Dec 16, 10:36 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 26, 11:40 PM CST | Dense Fog Advisory | SGF | 8 hr |
| Dec 27, 11:15 PM CST | Dense Fog Advisory | SGF | 12 hr |
| Dec 28, 10:41 PM CST | Special Weather Statement | SGF | 64 min |
| Dec 28, 10:48 PM CST | Severe Thunderstorm Warning | SGF | 42 min |
| Dec 28, 10:57 PM CST | Severe Thunderstorm Warning | SGF | 37 min |
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 | 24 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 10 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 22 |
| Special Weather Statement | 16 |
| Flooding | |
| Areal Flood Warning | 19 |
| Flash Flood Warning | 7 |
| River Flood Warning | 5 |
| Flash Flood Watch | 10 |
| Flood Watch | 3 |
| Areal Flood Advisory | 7 |
| Winter | |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 12 |
| Heat | |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 1 |
| Frost Advisory | 2 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 7 |
| Fog and smoke | |
| Dense Fog Advisory | 13 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
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.