Alert archive / Missouri / Lafayette County
Weather alerts in Lafayette County, Missouri, 2018
116 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Lafayette County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 116
- Warnings
- 47
- Watches
- 13
- Advisories
- 34
- Busiest month
- May23 alerts
- Busiest day
- May 14, 20189 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 3 tornado warnings covering Lafayette County in 2018 had a tornado report inside them.
Lafayette County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 26 | 14 | 46% | 5 | 100% | 14 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Kansas City, MO: tornado warnings | 15 | 4 | 73% | 9 | 67% | 8 min |
| NWS Kansas City, MO: severe thunderstorm warnings | 218 | 96 | 56% | 241 | 84% | 21 min |
| NWS Kansas City, MO: flash flood warnings | 9 | 6 | 33% | 15 | 87% | 169 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 6, 2:59 AM CST | Winter Weather Advisory | EAX | 39 hr |
| Jan 7, 9:09 PM CST | Dense Fog Advisory | EAX | 11 hr |
| Jan 8, 3:04 PM CST | Dense Fog Advisory | EAX | 19 hr |
| Jan 10, 2:01 PM CST | Winter Weather Advisory | EAX | 28 hr |
| Jan 14, 3:08 PM CST | Wind Chill Advisory | EAX | 45 hr |
| Jan 14, 3:08 PM CST | Winter Weather Advisory | EAX | 14 hr |
| Jan 26, 3:52 AM CST | Wind Advisory | EAX | 14 hr |
| Feb 4, 10:33 AM CST | Winter Weather Advisory | EAX | 4 hr |
| Feb 5, 3:58 PM CST | Winter Weather Advisory | EAX | 5 hr |
| Feb 9, 3:49 PM CST | Winter Weather Advisory | EAX | 17 hr |
| Feb 10, 4:16 AM CST | Winter Weather Advisory | EAX | 29 hr |
| Feb 18, 3:32 AM CST | Wind Advisory | EAX | 14 hr |
| Feb 19, 3:53 AM CST | Winter Weather Advisory | EAX | 44 hr |
| Feb 21, 3:42 AM CST | Winter Weather Advisory | EAX | 44 hr |
| Mar 5, 2:44 PM CST | Wind Advisory | EAX | 27 hr |
| Mar 26, 2:37 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 26, 7:36 AM CDT | Special Weather Statement | EAX | 39 min |
| Mar 26, 8:25 AM CDT | Areal Flood Advisory | EAX | 5 hr |
| Mar 26, 2:12 PM CDT | Areal Flood Warning | EAX | 24 hr |
| Mar 31, 3:36 AM CDT | Winter Weather Advisory | EAX | 39 hr |
| Apr 1, 1:38 PM CDT | Mesoscale Discussion | SPC | 4 hr |
| Apr 13, 2:19 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 14, 3:11 AM CDT | Freeze Warning | EAX | 30 hr |
| Apr 15, 2:53 AM CDT | Freeze Warning | EAX | 30 hr |
| Apr 16, 2:31 PM CDT | Frost Advisory | EAX | 18 hr |
| May 2, 1:35 PM CDT | Flash Flood Watch | EAX | 15 hr |
| May 2, 5:27 PM CDT | Tornado Watch | SPC | 8 hr |
| May 2, 8:00 PM CDT | Mesoscale Discussion | SPC | 90 min |
| May 2, 9:22 PM CDT | Severe Thunderstorm Warning | EAX | 38 min |
| May 2, 9:28 PM CDT | Tornado Warning | EAX | 32 min |
| May 2, 9:44 PM CDT | Tornado Warning | EAX | 46 min |
| May 2, 9:57 PM CDT | Severe Thunderstorm Warning | EAX | 63 min |
| May 2, 10:22 PM CDT | Tornado Warning | EAX | 23 min |
| May 14, 12:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| May 14, 1:13 PM CDT | Severe Thunderstorm Warning | EAX | 47 min |
| May 14, 1:20 PM CDT | Severe Thunderstorm Watch | SPC | 11 hr |
| May 14, 1:42 PM CDT | Severe Thunderstorm Warning | EAX | 24 min |
| May 14, 1:54 PM CDT | Severe Thunderstorm Warning | EAX | 51 min |
| May 14, 2:04 PM CDT | Severe Thunderstorm Warning | EAX | 26 min |
| May 14, 2:19 PM CDT | Severe Thunderstorm Warning | EAX | 26 min |
| May 14, 2:40 PM CDT | Severe Thunderstorm Warning | EAX | 35 min |
| May 14, 3:07 PM CDT | Severe Thunderstorm Warning | EAX | 23 min |
| May 19, 4:21 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 20, 12:42 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 26, 12:59 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 28, 2:27 PM CDT | Special Weather Statement | EAX | 48 min |
| May 28, 2:31 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 28, 3:06 PM CDT | Severe Thunderstorm Warning | EAX | 24 min |
| Jun 2, 12:50 AM CDT | Mesoscale Discussion | SPC | 55 min |
| Jun 2, 5:10 AM CDT | Severe Thunderstorm Warning | EAX | 50 min |
| Jun 2, 5:41 AM CDT | Severe Thunderstorm Warning | EAX | 49 min |
| Jun 2, 5:48 AM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 2, 6:25 AM CDT | Severe Thunderstorm Warning | EAX | 35 min |
| Jun 11, 6:12 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 11, 9:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 11, 11:03 PM CDT | Severe Thunderstorm Warning | EAX | 27 min |
| Jun 11, 11:30 PM CDT | Severe Thunderstorm Warning | EAX | 30 min |
| Jun 12, 12:07 AM CDT | Special Weather Statement | EAX | 23 min |
| Jun 14, 2:44 PM CDT | Heat Advisory | EAX | 5 days |
| Jun 26, 7:39 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 10:22 AM CDT | River Flood Warning | EAX | 12 days |
| Jun 26, 10:22 AM CDT | River Flood Warning | EAX | 12 days |
| Jun 26, 12:35 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 26, 12:54 PM CDT | Severe Thunderstorm Warning | EAX | 36 min |
| Jun 26, 1:22 PM CDT | Severe Thunderstorm Warning | EAX | 68 min |
| Jun 26, 3:44 PM CDT | Heat Advisory | EAX | 22 hr |
| Jun 26, 3:44 PM CDT | Heat Advisory | EAX | 4 days |
| Jun 27, 1:30 PM CDT | Excessive Heat Warning | EAX | 3 days |
| Jun 27, 1:30 PM CDT | Heat Advisory | EAX | 23 hr |
| Jul 2, 2:37 PM CDT | Heat Advisory | EAX | 60 hr |
| Jul 9, 1:46 PM CDT | Heat Advisory | EAX | 5 days |
| Jul 18, 2:19 PM CDT | Heat Advisory | EAX | 26 hr |
| Jul 19, 9:58 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 19, 11:22 AM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 19, 12:16 PM CDT | Severe Thunderstorm Warning | EAX | 29 min |
| Jul 19, 12:38 PM CDT | Severe Thunderstorm Warning | EAX | 37 min |
| Jul 19, 2:02 PM CDT | Severe Thunderstorm Warning | EAX | 23 min |
| Jul 19, 4:15 PM CDT | Severe Thunderstorm Warning | EAX | 60 min |
| Aug 10, 2:12 PM CDT | Special Weather Statement | EAX | 33 min |
| Aug 10, 3:14 PM CDT | Special Weather Statement | EAX | 46 min |
| Aug 16, 3:12 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Aug 16, 3:28 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 16, 6:19 PM CDT | Severe Thunderstorm Warning | EAX | 26 min |
| Aug 16, 6:39 PM CDT | Severe Thunderstorm Warning | EAX | 36 min |
| Aug 16, 7:37 PM CDT | Special Weather Statement | EAX | 38 min |
| Aug 16, 7:47 PM CDT | Severe Thunderstorm Warning | EAX | 28 min |
| Aug 16, 8:11 PM CDT | Severe Thunderstorm Warning | EAX | 49 min |
| Aug 24, 3:48 PM CDT | Heat Advisory | EAX | 51 hr |
| Aug 28, 5:06 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 28, 5:41 PM CDT | Severe Thunderstorm Warning | EAX | 49 min |
| Aug 31, 6:50 AM CDT | Special Weather Statement | EAX | 40 min |
| Aug 31, 10:07 AM CDT | Areal Flood Advisory | EAX | 3 hr |
| Sep 3, 9:35 AM CDT | River Flood Warning | EAX | 8 days |
| Sep 3, 9:35 AM CDT | River Flood Warning | EAX | 8 days |
| Sep 6, 3:08 AM CDT | Flash Flood Watch | EAX | 54 hr |
| Sep 6, 4:27 AM CDT | Dense Fog Advisory | EAX | 6 hr |
| Sep 28, 9:34 AM CDT | River Flood Warning | EAX | 4 days |
| Sep 29, 7:57 PM CDT | River Flood Warning | EAX | 59 hr |
| Oct 6, 9:48 AM CDT | River Flood Warning | EAX | 14 days |
| Oct 6, 9:48 AM CDT | River Flood Warning | EAX | 15 days |
| Oct 7, 7:38 PM CDT | Areal Flood Advisory | EAX | 3 hr |
| Oct 9, 11:31 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Oct 9, 1:46 PM CDT | Tornado Watch | SPC | 7 hr |
| Oct 9, 3:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Oct 15, 3:23 AM CDT | Freeze Warning | EAX | 30 hr |
| Nov 6, 9:59 PM CST | Dense Fog Advisory | EAX | 5 hr |
| Nov 8, 10:03 AM CST | Winter Weather Advisory | EAX | 12 hr |
| Nov 11, 2:00 PM CST | Winter Weather Advisory | EAX | 28 hr |
| Nov 24, 3:30 AM CST | Winter Weather Advisory | EAX | 32 hr |
| Nov 24, 2:24 PM CST | Blizzard Warning | EAX | 31 hr |
| Nov 25, 10:59 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Nov 30, 9:55 AM CST | Dense Fog Advisory | EAX | 8 hr |
| Dec 1, 9:54 AM CST | River Flood Warning | EAX | 4 days |
| Dec 1, 9:54 AM CST | River Flood Warning | EAX | 5 days |
| Dec 26, 11:12 AM CST | River Flood Warning | EAX | 8 days |
| Dec 26, 11:12 AM CST | River Flood Warning | EAX | 8 days |
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 | 26 |
| Tornado Warning | 3 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 15 |
| Special Weather Statement | 7 |
| Flooding | |
| Areal Flood Warning | 1 |
| River Flood Warning | 12 |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 3 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Weather Advisory | 13 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 8 |
| Cold | |
| Freeze Warning | 3 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 3 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.