Alert archive / Missouri / Pettis County
Weather alerts in Pettis County, Missouri, 2017
138 weather alerts in 2017, 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 2017. Tap one for its archive.
- Alerts
- 138
- Warnings
- 52
- Watches
- 24
- Advisories
- 20
- Busiest month
- March28 alerts
- Busiest day
- March 1, 20176 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 Pettis County in 2017 had a tornado report inside them.
Pettis County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 20 | 17 | 15% | 25 | 72% | 21 min |
| Flash flood warnings | 2 | 2 | 0% | 0 |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Kansas City, MO: tornado warnings | 40 | 15 | 63% | 40 | 53% | 11 min |
| NWS Kansas City, MO: severe thunderstorm warnings | 220 | 136 | 38% | 750 | 69% | 22 min |
| NWS Kansas City, MO: flash flood warnings | 40 | 28 | 30% | 117 | 96% | 135 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, 5:43 PM CST | Dense Fog Advisory | EAX | 9 hr |
| Jan 4, 3:00 AM CST | Winter Weather Advisory | EAX | 32 hr |
| Jan 10, 9:28 AM CST | Wind Advisory | EAX | 7 hr |
| Jan 12, 3:52 AM CST | Winter Storm Watch | EAX | 10 hr |
| Jan 12, 2:21 PM CST | Ice Storm Warning | EAX | 4 days |
| Jan 15, 2:02 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Jan 19, 3:07 PM CST | Dense Fog Advisory | EAX | 20 hr |
| Feb 15, 2:36 PM CST | Fire Weather Watch | EAX | 13 hr |
| Feb 16, 3:11 AM CST | Red Flag Warning | EAX | 15 hr |
| Feb 19, 6:23 AM CST | Dense Fog Advisory | EAX | 3 hr |
| Feb 22, 6:19 AM CST | Dense Fog Advisory | EAX | 3 hr |
| Feb 23, 9:16 PM CST | Special Weather Statement | EAX | 29 min |
| Feb 27, 12:34 AM CST | Dense Fog Advisory | EAX | 8 hr |
| Feb 28, 12:55 PM CST | Wind Advisory | EAX | 4 hr |
| Feb 28, 6:05 PM CST | Mesoscale Discussion | SPC | 115 min |
| Feb 28, 6:23 PM CST | Tornado Watch | SPC | 5 hr |
| Feb 28, 9:46 PM CST | Severe Thunderstorm Warning | EAX | 44 min |
| Feb 28, 10:39 PM CST | Severe Thunderstorm Warning | EAX | 51 min |
| Feb 28, 10:48 PM CST | Special Weather Statement | EAX | 27 min |
| Feb 28, 11:14 PM CST | Severe Thunderstorm Warning | EAX | 31 min |
| Mar 2, 10:27 AM CST | Red Flag Warning | EAX | 8 hr |
| Mar 3, 1:48 PM CST | Fire Weather Watch | EAX | 13 hr |
| Mar 4, 2:42 AM CST | Red Flag Warning | EAX | 16 hr |
| Mar 6, 3:18 AM CST | Fire Weather Watch | EAX | 11 hr |
| Mar 6, 3:23 AM CST | Wind Advisory | EAX | 18 hr |
| Mar 6, 1:48 PM CST | Mesoscale Discussion | SPC | 117 min |
| Mar 6, 2:21 PM CST | Red Flag Warning | EAX | 28 hr |
| Mar 6, 2:27 PM CST | Tornado Watch | SPC | 8 hr |
| Mar 6, 6:31 PM CST | Mesoscale Discussion | SPC | 119 min |
| Mar 6, 8:55 PM CST | Severe Thunderstorm Warning | EAX | 35 min |
| Mar 6, 9:01 PM CST | Severe Thunderstorm Warning | EAX | 29 min |
| Mar 6, 9:23 PM CST | Tornado Warning | EAX | 37 min |
| Mar 6, 9:28 PM CST | Severe Thunderstorm Warning | EAX | 47 min |
| Mar 7, 3:44 PM CST | Fire Weather Watch | EAX | 10 hr |
| Mar 8, 1:50 AM CST | Red Flag Warning | EAX | 16 hr |
| Mar 10, 3:14 AM CST | Freeze Warning | EAX | 57 hr |
| Mar 11, 5:29 PM CST | Freeze Warning | EAX | 19 hr |
| Mar 13, 12:50 PM CDT | Freeze Warning | EAX | 23 hr |
| Mar 13, 12:50 PM CDT | Freeze Warning | EAX | 47 hr |
| Mar 29, 3:48 PM CDT | Tornado Watch | SPC | 7 hr |
| Mar 29, 6:08 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Mar 30, 5:48 AM CDT | River Flood Warning | EAX | 25 hr |
| Apr 4, 9:22 AM CDT | River Flood Warning | EAX | 61 hr |
| Apr 4, 11:34 AM CDT | Flood Watch | EAX | 25 hr |
| Apr 5, 3:26 AM CDT | Wind Advisory | EAX | 16 hr |
| Apr 6, 2:58 AM CDT | Frost Advisory | EAX | 30 hr |
| Apr 27, 2:34 PM CDT | Flash Flood Watch | EAX | 3 days |
| Apr 28, 10:25 AM CDT | River Flood Warning | EAX | 4 days |
| Apr 29, 1:32 PM CDT | Areal Flood Warning | EAX | 12 hr |
| Apr 30, 1:20 AM CDT | Areal Flood Warning | EAX | 60 hr |
| May 2, 1:13 PM CDT | Areal Flood Warning | EAX | 24 hr |
| May 2, 8:47 PM CDT | River Flood Warning | EAX | 71 hr |
| May 10, 12:39 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 17, 3:33 AM CDT | Wind Advisory | EAX | 15 hr |
| May 18, 12:51 PM CDT | Flash Flood Watch | EAX | 37 hr |
| May 18, 2:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| May 18, 9:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| May 19, 9:49 AM CDT | River Flood Warning | EAX | 72 hr |
| May 19, 3:06 PM CDT | Tornado Watch | SPC | 7 hr |
| May 19, 6:04 PM CDT | Mesoscale Discussion | SPC | 86 min |
| May 27, 9:59 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 27, 12:13 PM CDT | Tornado Watch | SPC | 7 hr |
| May 27, 1:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| May 27, 1:36 PM CDT | Severe Thunderstorm Warning | EAX | 43 min |
| May 27, 5:56 PM CDT | Mesoscale Discussion | SPC | 64 min |
| May 27, 6:13 PM CDT | Severe Thunderstorm Warning | EAX | 35 min |
| May 30, 5:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 14, 12:40 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 14, 1:04 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 14, 6:11 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Jun 14, 9:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 15, 2:07 AM CDT | Special Weather Statement | EAX | 38 min |
| Jun 16, 3:25 AM CDT | Heat Advisory | EAX | 37 hr |
| Jun 16, 7:52 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 16, 11:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 17, 1:54 AM CDT | Special Weather Statement | EAX | 51 min |
| Jun 17, 2:00 AM CDT | Severe Thunderstorm Warning | EAX | 32 min |
| Jun 17, 6:12 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 17, 8:23 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 9:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jun 17, 10:07 PM CDT | Severe Thunderstorm Warning | EAX | 53 min |
| Jun 17, 10:38 PM CDT | Severe Thunderstorm Warning | EAX | 51 min |
| Jun 29, 8:02 PM CDT | Severe Thunderstorm Warning | EAX | 28 min |
| Jul 3, 7:33 PM CDT | Special Weather Statement | EAX | 12 min |
| Jul 9, 2:55 PM CDT | Heat Advisory | EAX | 3 days |
| Jul 12, 6:13 PM CDT | Mesoscale Discussion | SPC | 77 min |
| Jul 15, 2:42 PM CDT | Excessive Heat Watch | EAX | 72 hr |
| Jul 17, 2:51 PM CDT | Excessive Heat Warning | EAX | 5 days |
| Jul 22, 5:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 22, 5:55 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 22, 9:22 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 22, 10:54 PM CDT | Severe Thunderstorm Warning | EAX | 51 min |
| Jul 22, 11:37 PM CDT | Severe Thunderstorm Warning | EAX | 53 min |
| Jul 22, 11:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jul 25, 3:10 PM CDT | Heat Advisory | EAX | 24 hr |
| Jul 27, 1:09 AM CDT | Special Weather Statement | EAX | 51 min |
| Jul 27, 1:32 AM CDT | Flash Flood Warning | EAX | 7 hr |
| Jul 27, 3:39 AM CDT | River Flood Warning | EAX | 53 hr |
| Aug 4, 4:34 AM CDT | Flash Flood Watch | EAX | 46 hr |
| Aug 5, 10:33 AM CDT | River Flood Warning | EAX | 3 days |
| Aug 5, 8:16 PM CDT | Flash Flood Warning | EAX | 6 hr |
| Aug 6, 1:55 AM CDT | Areal Flood Warning | EAX | 60 hr |
| Aug 16, 12:42 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 16, 12:56 PM CDT | Special Weather Statement | EAX | 34 min |
| Aug 16, 2:48 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Aug 16, 6:41 PM CDT | Severe Thunderstorm Warning | EAX | 34 min |
| Aug 16, 7:09 PM CDT | Special Weather Statement | EAX | 36 min |
| Aug 16, 7:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Aug 18, 5:50 PM CDT | Mesoscale Discussion | SPC | 115 min |
| Aug 18, 8:58 PM CDT | Severe Thunderstorm Warning | EAX | 47 min |
| Aug 18, 9:34 PM CDT | Severe Thunderstorm Warning | EAX | 41 min |
| Aug 18, 10:11 PM CDT | Special Weather Statement | EAX | 49 min |
| Aug 20, 2:36 PM CDT | Flash Flood Watch | EAX | 43 hr |
| Aug 21, 3:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Aug 21, 5:46 PM CDT | Severe Thunderstorm Warning | EAX | 44 min |
| Aug 21, 6:36 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Aug 22, 3:53 AM CDT | River Flood Warning | EAX | 3 days |
| Aug 22, 7:37 AM CDT | Areal Flood Warning | EAX | 12 hr |
| Aug 22, 7:57 PM CDT | Areal Flood Warning | EAX | 48 hr |
| Aug 28, 2:49 AM CDT | Dense Fog Advisory | EAX | 6 hr |
| Sep 18, 10:15 PM CDT | Dense Fog Advisory | EAX | 11 hr |
| Oct 14, 5:09 PM CDT | Tornado Watch | SPC | 8 hr |
| Oct 14, 6:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Oct 14, 6:59 PM CDT | Severe Thunderstorm Warning | EAX | 31 min |
| Oct 14, 8:37 PM CDT | Special Weather Statement | EAX | 53 min |
| Oct 14, 8:43 PM CDT | Severe Thunderstorm Warning | EAX | 47 min |
| Oct 14, 9:01 PM CDT | Areal Flood Advisory | EAX | 3 hr |
| Oct 15, 1:08 AM CDT | River Flood Warning | EAX | 34 hr |
| Oct 21, 8:10 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Oct 22, 1:31 PM CDT | River Flood Warning | EAX | 36 hr |
| Oct 26, 8:31 AM CDT | Freeze Watch | EAX | 18 hr |
| Oct 27, 2:35 AM CDT | Freeze Warning | EAX | 31 hr |
| Nov 1, 10:15 PM CDT | Dense Fog Advisory | EAX | 11 hr |
| Dec 4, 1:26 PM CST | Mesoscale Discussion | SPC | 94 min |
| Dec 4, 2:34 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
| Dec 4, 3:57 PM CST | Mesoscale Discussion | SPC | 93 min |
| Dec 11, 3:23 AM CST | Red Flag Warning | EAX | 15 hr |
| Dec 29, 3:52 PM CST | Wind Chill Advisory | EAX | 56 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 archive20162018
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.