Alert archive / Missouri / Pettis County
Weather alerts in Pettis County, Missouri, 2023
111 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Pettis County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 111
- Warnings
- 33
- Watches
- 16
- Advisories
- 28
- Busiest month
- July27 alerts
- Busiest day
- March 31, 202311 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Pettis County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 24 | 17 | 29% | 12 | 75% | 14 min |
| Flash flood warnings | 2 | 1 | 50% | 1 | 100% | 85 min |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Kansas City, MO: tornado warnings | 21 | 6 | 71% | 11 | 64% | 12 min |
| NWS Kansas City, MO: severe thunderstorm warnings | 293 | 182 | 38% | 459 | 92% | 22 min |
| NWS Kansas City, MO: flash flood warnings | 24 | 11 | 54% | 21 | 86% | 96 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, 1:50 AM CST | Dense Fog Advisory | EAX | 16 hr |
| Jan 23, 3:10 PM CST | Winter Weather Advisory | EAX | 42 hr |
| Jan 29, 7:01 PM CST | Winter Weather Advisory | EAX | 9 hr |
| Feb 13, 2:20 PM CST | Wind Advisory | EAX | 28 hr |
| Feb 15, 3:36 AM CST | Winter Weather Advisory | EAX | 38 hr |
| Feb 26, 2:29 AM CST | Wind Advisory | EAX | 37 hr |
| Feb 27, 1:43 AM CST | Mesoscale Discussion | SPC | 62 min |
| Feb 27, 2:20 AM CST | Special Weather Statement | EAX | 25 min |
| Feb 27, 2:30 AM CST | Severe Thunderstorm Warning | EAX | 30 min |
| Mar 23, 3:12 AM CDT | Dense Fog Advisory | EAX | 2 hr |
| Mar 30, 2:36 AM CDT | Wind Advisory | EAX | 40 hr |
| Mar 30, 2:46 PM CDT | Red Flag Warning | EAX | 30 hr |
| Mar 31, 3:23 AM CDT | High Wind Warning | EAX | 16 hr |
| Mar 31, 3:23 AM CDT | Wind Advisory | EAX | 31 hr |
| Mar 31, 8:36 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Mar 31, 11:13 AM CDT | Special Weather Statement | EAX | 32 min |
| Mar 31, 11:24 AM CDT | Mesoscale Discussion | SPC | 96 min |
| Mar 31, 11:46 AM CDT | Tornado Watch | SPC | 8 hr |
| Mar 31, 1:30 PM CDT | Severe Thunderstorm Warning | EAX | 30 min |
| Mar 31, 1:36 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Mar 31, 1:47 PM CDT | Severe Thunderstorm Warning | EAX | 43 min |
| Mar 31, 1:50 PM CDT | Severe Thunderstorm Warning | EAX | 40 min |
| Mar 31, 2:25 PM CDT | Severe Thunderstorm Warning | EAX | 35 min |
| Apr 2, 12:18 PM CDT | Red Flag Warning | EAX | 6 hr |
| Apr 3, 1:52 PM CDT | Wind Advisory | EAX | 34 hr |
| Apr 4, 2:17 PM CDT | Severe Thunderstorm Warning | EAX | 43 min |
| Apr 5, 12:05 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Apr 5, 1:34 AM CDT | Severe Thunderstorm Warning | EAX | 26 min |
| Apr 5, 1:57 AM CDT | Severe Thunderstorm Warning | EAX | 33 min |
| Apr 5, 2:20 AM CDT | Severe Thunderstorm Warning | EAX | 25 min |
| Apr 5, 2:42 AM CDT | Severe Thunderstorm Warning | EAX | 33 min |
| Apr 5, 3:13 AM CDT | Special Weather Statement | EAX | 47 min |
| Apr 5, 2:13 PM CDT | Frost Advisory | EAX | 18 hr |
| Apr 6, 9:22 PM CDT | Frost Advisory | EAX | 12 hr |
| Apr 21, 2:13 AM CDT | Freeze Watch | EAX | 23 hr |
| Apr 22, 1:41 AM CDT | Freeze Warning | EAX | 31 hr |
| Apr 23, 2:17 AM CDT | Frost Advisory | EAX | 30 hr |
| May 8, 2:07 AM CDT | Mesoscale Discussion | SPC | 113 min |
| May 14, 6:05 PM CDT | Flash Flood Warning | EAX | 85 min |
| May 14, 8:30 PM CDT | Areal Flood Advisory | EAX | 3 hr |
| Jun 27, 1:57 PM CDT | Heat Advisory | EAX | 3 days |
| Jun 30, 4:27 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 30, 5:14 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 1, 6:30 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 5, 2:28 AM CDT | Special Weather Statement | EAX | 47 min |
| Jul 11, 12:17 PM CDT | Heat Advisory | EAX | 31 hr |
| Jul 12, 7:26 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 12, 8:20 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 12, 9:56 PM CDT | Severe Thunderstorm Warning | EAX | 34 min |
| Jul 12, 11:02 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jul 14, 1:37 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 14, 3:52 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 14, 4:58 PM CDT | Severe Thunderstorm Warning | EAX | 47 min |
| Jul 14, 5:00 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jul 14, 5:39 PM CDT | Severe Thunderstorm Warning | EAX | 51 min |
| Jul 16, 1:01 PM CDT | Special Weather Statement | EAX | 44 min |
| Jul 17, 1:28 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 17, 5:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 17, 8:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 17, 9:00 PM CDT | Severe Thunderstorm Warning | EAX | 35 min |
| Jul 18, 7:45 AM CDT | Special Weather Statement | EAX | 30 min |
| Jul 18, 7:58 AM CDT | Severe Thunderstorm Warning | EAX | 27 min |
| Jul 23, 4:58 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 24, 5:38 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 24, 9:22 AM CDT | Special Weather Statement | EAX | 38 min |
| Jul 25, 2:07 PM CDT | Heat Advisory | EAX | 45 hr |
| Jul 27, 3:14 AM CDT | Excessive Heat Warning | EAX | 60 hr |
| Jul 29, 11:04 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 29, 11:28 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 30, 8:50 PM CDT | Severe Thunderstorm Warning | EAX | 55 min |
| Jul 31, 8:01 PM CDT | Flood Watch | EAX | 14 hr |
| Aug 1, 2:56 AM CDT | Severe Thunderstorm Warning | EAX | 34 min |
| Aug 1, 3:24 AM CDT | Severe Thunderstorm Warning | EAX | 51 min |
| Aug 1, 3:29 AM CDT | Areal Flood Advisory | EAX | 51 min |
| Aug 1, 3:30 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 1, 4:18 AM CDT | Special Weather Statement | EAX | 27 min |
| Aug 1, 4:20 AM CDT | Flash Flood Warning | EAX | 5 hr |
| Aug 1, 5:33 AM CDT | Special Weather Statement | EAX | 27 min |
| Aug 1, 9:39 AM CDT | Areal Flood Advisory | EAX | 3 hr |
| Aug 1, 2:25 PM CDT | Heat Advisory | EAX | 30 hr |
| Aug 2, 5:30 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 2, 7:58 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 4, 3:15 AM CDT | Areal Flood Advisory | EAX | 6 hr |
| Aug 4, 5:17 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 4, 7:38 PM CDT | Severe Thunderstorm Warning | EAX | 52 min |
| Aug 4, 7:47 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Aug 4, 8:17 PM CDT | Severe Thunderstorm Warning | EAX | 28 min |
| Aug 4, 9:21 PM CDT | Areal Flood Advisory | EAX | 6 hr |
| Aug 10, 1:15 AM CDT | Dense Fog Advisory | EAX | 8 hr |
| Aug 10, 2:53 PM CDT | Heat Advisory | EAX | 29 hr |
| Aug 13, 7:38 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 17, 2:54 PM CDT | Excessive Heat Watch | EAX | 36 hr |
| Aug 18, 2:13 PM CDT | Excessive Heat Warning | EAX | 7 days |
| Aug 22, 5:21 AM CDT | Dense Fog Advisory | EAX | 4 hr |
| Sep 5, 4:04 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 5, 5:30 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 5, 7:11 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 5, 7:33 PM CDT | Special Weather Statement | EAX | 27 min |
| Sep 5, 7:47 PM CDT | Severe Thunderstorm Warning | EAX | 43 min |
| Sep 12, 2:02 AM CDT | Dense Fog Advisory | EAX | 7 hr |
| Sep 23, 10:09 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 23, 1:02 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 23, 2:16 PM CDT | Special Weather Statement | EAX | 29 min |
| Sep 23, 2:37 PM CDT | Severe Thunderstorm Warning | EAX | 23 min |
| Sep 23, 3:05 PM CDT | Severe Thunderstorm Warning | EAX | 25 min |
| Sep 23, 3:27 PM CDT | Severe Thunderstorm Warning | EAX | 33 min |
| Sep 23, 3:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Sep 23, 6:38 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 6, 2:57 AM CDT | Frost Advisory | EAX | 30 hr |
| Oct 28, 2:19 PM CDT | Freeze Warning | EAX | 44 hr |
| Nov 5, 3:11 AM CST | Dense Fog Advisory | EAX | 6 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 | 24 |
| Severe Thunderstorm Watch | 12 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 23 |
| Special Weather Statement | 11 |
| Flooding | |
| Flash Flood Warning | 2 |
| Flood Watch | 1 |
| Areal Flood Advisory | 5 |
| Winter | |
| Winter Weather Advisory | 3 |
| Heat | |
| Excessive Heat Warning | 2 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 2 |
| Freeze Watch | 1 |
| Frost Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20222024
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.