Alert archive / Missouri / Maries County
Weather alerts in Maries County, Missouri, 2020
109 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Maries County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 109
- Warnings
- 26
- Watches
- 18
- Advisories
- 34
- Busiest month
- January21 alerts
- Busiest day
- November 15, 20205 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 Maries County in 2020 had a tornado report inside them.
Maries County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 5 | 4 | 20% | 1 | 100% | 19 min |
| Flash flood warnings | 3 | 2 | 33% | 1 | 100% | 76 min |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Springfield, MO: tornado warnings | 27 | 1 | 96% | 4 | 50% | 5 min |
| NWS Springfield, MO: severe thunderstorm warnings | 281 | 167 | 41% | 499 | 88% | 21 min |
| NWS Springfield, MO: flash flood warnings | 58 | 41 | 29% | 171 | 88% | 207 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 8, 2:15 PM CST | Flash Flood Watch | SGF | 62 hr |
| Jan 10, 2:55 AM CST | Winter Weather Advisory | SGF | 39 hr |
| Jan 10, 5:33 PM CST | Flash Flood Warning | SGF | 17 hr |
| Jan 10, 7:01 PM CST | Severe Thunderstorm Warning | SGF | 44 min |
| Jan 10, 10:54 PM CST | Areal Flood Warning | SGF | 12 hr |
| Jan 11, 10:14 AM CST | Areal Flood Warning | SGF | 24 hr |
| Jan 11, 3:10 PM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 12, 9:50 AM CST | Areal Flood Advisory | SGF | 24 hr |
| Jan 13, 7:05 AM CST | Dense Fog Advisory | SGF | 6 hr |
| Jan 16, 2:22 AM CST | Flood Watch | SGF | 52 hr |
| Jan 16, 3:03 AM CST | Winter Weather Advisory | SGF | 41 hr |
| Jan 17, 9:45 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 18, 12:36 AM CST | Areal Flood Warning | SGF | 12 hr |
| Jan 18, 12:26 PM CST | Areal Flood Advisory | SGF | 10 hr |
| Jan 20, 2:27 PM CST | Winter Weather Advisory | SGF | 4 hr |
| Jan 21, 2:55 PM CST | Winter Weather Advisory | SGF | 21 hr |
| Jan 22, 12:18 PM CST | Winter Weather Advisory | SGF | 24 hr |
| Jan 23, 3:17 AM CST | Winter Weather Advisory | SGF | 36 hr |
| Jan 26, 8:47 PM CST | Dense Fog Advisory | SGF | 13 hr |
| Jan 27, 10:19 PM CST | Dense Fog Advisory | SGF | 11 hr |
| Jan 28, 3:09 AM CST | Winter Weather Advisory | SGF | 33 hr |
| Feb 4, 3:51 AM CST | Winter Storm Watch | SGF | 12 hr |
| Feb 4, 3:51 AM CST | Winter Weather Advisory | SGF | 53 hr |
| Feb 4, 3:28 PM CST | Winter Storm Warning | SGF | 23 hr |
| Feb 5, 2:30 PM CST | Winter Weather Advisory | SGF | 13 hr |
| Feb 11, 2:49 PM CST | Winter Weather Advisory | SGF | 33 hr |
| Feb 22, 2:54 AM CST | Flood Watch | SGF | 63 hr |
| Feb 25, 12:48 PM CST | Winter Weather Advisory | SGF | 17 hr |
| Mar 5, 3:05 AM CST | Red Flag Warning | SGF | 15 hr |
| Mar 8, 3:53 AM CDT | Red Flag Warning | SGF | 15 hr |
| Mar 12, 9:21 AM CDT | Mesoscale Discussion | SPC | 114 min |
| Mar 19, 10:26 AM CDT | Areal Flood Warning | SGF | 10 hr |
| Mar 26, 10:27 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Mar 27, 4:06 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Mar 27, 5:15 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Mar 28, 1:17 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Apr 8, 1:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Apr 8, 4:24 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 9, 2:57 AM CDT | Freeze Warning | SGF | 29 hr |
| Apr 12, 3:57 AM CDT | Freeze Warning | SGF | 30 hr |
| Apr 12, 3:57 AM CDT | Wind Advisory | SGF | 27 hr |
| Apr 13, 3:05 PM CDT | Freeze Warning | SGF | 18 hr |
| Apr 17, 10:54 AM CDT | Freeze Warning | SGF | 22 hr |
| Apr 28, 3:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Apr 28, 3:51 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 28, 6:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| May 3, 8:34 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 4, 6:33 AM CDT | Severe Thunderstorm Watch | SPC | 12 hr |
| May 4, 1:04 PM CDT | Mesoscale Discussion | SPC | 86 min |
| May 8, 3:51 AM CDT | Frost Advisory | SGF | 27 hr |
| May 10, 1:44 PM CDT | Frost Advisory | SGF | 17 hr |
| May 14, 1:41 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 15, 1:06 AM CDT | Mesoscale Discussion | SPC | 114 min |
| May 15, 1:40 AM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 15, 3:20 AM CDT | Mesoscale Discussion | SPC | 85 min |
| May 24, 2:58 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 25, 2:15 PM CDT | Mesoscale Discussion | SPC | 90 min |
| May 27, 9:25 PM CDT | Dense Fog Advisory | SGF | 12 hr |
| Jun 4, 1:55 AM CDT | Flash Flood Warning | SGF | 11 hr |
| Jun 4, 12:41 PM CDT | Areal Flood Warning | SGF | 4 hr |
| Jun 5, 3:31 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 5, 3:41 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 7, 3:25 AM CDT | Flash Flood Watch | SGF | 55 hr |
| Jun 9, 9:30 AM CDT | Areal Flood Warning | SGF | 5 hr |
| Jun 9, 2:41 PM CDT | Areal Flood Warning | SGF | 12 hr |
| Jun 10, 2:38 AM CDT | Areal Flood Advisory | SGF | 8 hr |
| Jun 27, 4:34 PM CDT | Special Weather Statement | SGF | 41 min |
| Jun 27, 4:47 PM CDT | Severe Thunderstorm Warning | SGF | 43 min |
| Jun 27, 7:15 PM CDT | Special Weather Statement | SGF | 45 min |
| Jul 1, 5:40 AM CDT | Mesoscale Discussion | SPC | 65 min |
| Jul 1, 8:53 AM CDT | Special Weather Statement | SGF | 52 min |
| Jul 3, 2:07 AM CDT | Special Weather Statement | SGF | 23 min |
| Jul 3, 3:57 AM CDT | Special Weather Statement | SGF | 33 min |
| Jul 3, 4:10 AM CDT | Areal Flood Advisory | SGF | 6 hr |
| Jul 3, 8:16 PM CDT | Flash Flood Warning | SGF | 6 hr |
| Jul 15, 1:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 15, 2:10 PM CDT | Tornado Watch | SPC | 7 hr |
| Jul 17, 3:30 AM CDT | Heat Advisory | SGF | 65 hr |
| Jul 20, 2:01 PM CDT | Special Weather Statement | SGF | 44 min |
| Aug 10, 2:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 10:29 AM CDT | Special Weather Statement | SGF | 46 min |
| Aug 31, 8:41 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 31, 11:04 AM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 31, 11:11 AM CDT | Severe Thunderstorm Warning | SGF | 49 min |
| Sep 3, 12:40 AM CDT | Dense Fog Advisory | SGF | 8 hr |
| Sep 8, 3:01 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Sep 8, 5:33 PM CDT | Special Weather Statement | SGF | 42 min |
| Sep 9, 3:34 AM CDT | Dense Fog Advisory | SGF | 5 hr |
| Sep 23, 9:01 PM CDT | Dense Fog Advisory | SGF | 14 hr |
| Sep 27, 3:51 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Oct 4, 2:18 AM CDT | Frost Advisory | SGF | 30 hr |
| Oct 13, 2:17 PM CDT | Fire Weather Watch | SGF | 13 hr |
| Oct 14, 2:55 AM CDT | Red Flag Warning | SGF | 15 hr |
| Oct 15, 2:26 AM CDT | Frost Advisory | SGF | 31 hr |
| Oct 16, 3:30 AM CDT | Fire Weather Watch | SGF | 11 hr |
| Oct 16, 2:16 PM CDT | Red Flag Warning | SGF | 29 hr |
| Oct 16, 2:27 PM CDT | Wind Advisory | SGF | 28 hr |
| Nov 14, 5:14 PM CST | Tornado Watch | SPC | 8 hr |
| Nov 14, 7:33 PM CST | Severe Thunderstorm Warning | SGF | 57 min |
| Nov 14, 7:34 PM CST | Mesoscale Discussion | SPC | 86 min |
| Nov 14, 7:56 PM CST | Tornado Warning | SGF | 34 min |
| Nov 14, 8:08 PM CST | Severe Thunderstorm Warning | SGF | 52 min |
| Nov 14, 9:03 PM CST | Special Weather Statement | SGF | 57 min |
| Nov 18, 1:20 PM CST | Wind Advisory | SGF | 29 hr |
| Nov 19, 2:41 AM CST | Red Flag Warning | SGF | 15 hr |
| Nov 22, 11:33 PM CST | Dense Fog Advisory | SGF | 11 hr |
| Dec 7, 8:36 PM CST | Dense Fog Advisory | SGF | 13 hr |
| Dec 19, 9:37 PM CST | Dense Fog Advisory | SGF | 11 hr |
| Dec 23, 2:39 AM CST | Wind Advisory | SGF | 15 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 | 5 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 22 |
| Special Weather Statement | 9 |
| Flooding | |
| Areal Flood Warning | 7 |
| Flash Flood Warning | 3 |
| Flash Flood Watch | 2 |
| Flood Watch | 2 |
| Areal Flood Advisory | 4 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 11 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 4 |
| Frost Advisory | 4 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 10 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.