Alert archive / Missouri / DeKalb County
Weather alerts in DeKalb County, Missouri, 2023
103 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
DeKalb County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 103
- Warnings
- 28
- Watches
- 15
- Advisories
- 24
- Busiest month
- July24 alerts
- Busiest day
- June 29, 20237 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
DeKalb County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 19 | 14 | 26% | 4 | 100% | 27 min |
| Flash flood warnings | 0 | 0 |
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 3, 2:23 AM CST | Dense Fog Advisory | EAX | 7 hr |
| Jan 20, 2:54 PM CST | Winter Weather Advisory | EAX | 39 hr |
| Jan 23, 3:10 PM CST | Winter Weather Advisory | EAX | 42 hr |
| Feb 8, 11:33 PM CST | Winter Weather Advisory | EAX | 12 hr |
| Feb 9, 2:58 AM CST | Mesoscale Discussion | SPC | 5 hr |
| Feb 15, 3:36 AM CST | Winter Storm Warning | EAX | 33 hr |
| Feb 15, 3:36 AM CST | Winter Weather Advisory | EAX | 38 hr |
| Feb 24, 1:06 PM CST | Winter Weather Advisory | EAX | 10 hr |
| Feb 26, 2:29 AM CST | Wind Advisory | EAX | 37 hr |
| Feb 27, 1:22 AM CST | Severe Thunderstorm Warning | EAX | 23 min |
| Feb 27, 1:44 AM CST | Severe Thunderstorm Warning | EAX | 46 min |
| Mar 15, 3:11 PM CDT | Wind Advisory | EAX | 33 hr |
| Mar 29, 2:57 PM CDT | Wind Advisory | EAX | 48 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, 11:46 AM CDT | Tornado Watch | SPC | 8 hr |
| Mar 31, 12:38 PM CDT | Special Weather Statement | EAX | 22 min |
| Apr 3, 1:52 PM CDT | Wind Advisory | EAX | 34 hr |
| Apr 4, 1:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Apr 4, 2:48 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 4, 6:18 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Apr 4, 6:18 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 4, 8:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 4, 9:40 PM CDT | Severe Thunderstorm Warning | EAX | 35 min |
| Apr 12, 1:22 PM CDT | Red Flag Warning | EAX | 31 hr |
| Apr 16, 2:32 AM CDT | Wind Advisory | EAX | 16 hr |
| Apr 19, 2:45 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 19, 3:45 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 19, 8:21 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 19, 10:58 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 20, 3:35 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Apr 20, 4:57 AM CDT | Severe Thunderstorm Warning | EAX | 48 min |
| Apr 20, 5:30 AM CDT | Mesoscale Discussion | SPC | 30 min |
| Apr 21, 2:13 AM CDT | Freeze Watch | EAX | 23 hr |
| Apr 21, 2:13 AM CDT | Freeze Warning | EAX | 31 hr |
| Apr 22, 1:41 AM CDT | Freeze Warning | EAX | 31 hr |
| Apr 23, 2:17 AM CDT | Frost Advisory | EAX | 30 hr |
| May 6, 3:20 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 6, 3:56 PM CDT | Tornado Watch | SPC | 7 hr |
| May 7, 9:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 7, 10:02 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 7, 11:30 PM CDT | Special Weather Statement | EAX | 30 min |
| May 7, 11:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 17, 4:56 PM CDT | Severe Thunderstorm Warning | EAX | 34 min |
| Jun 17, 5:29 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 18, 8:20 AM CDT | Areal Flood Advisory | EAX | 3 hr |
| Jun 29, 5:18 AM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 29, 5:49 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 29, 7:29 AM CDT | Severe Thunderstorm Warning | EAX | 46 min |
| Jun 29, 7:42 AM CDT | Severe Thunderstorm Warning | EAX | 48 min |
| Jun 29, 7:58 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 29, 8:23 AM CDT | Severe Thunderstorm Warning | EAX | 52 min |
| Jun 29, 8:38 AM CDT | Severe Thunderstorm Warning | EAX | 52 min |
| Jun 30, 10:00 PM CDT | Severe Thunderstorm Warning | EAX | 45 min |
| Jun 30, 10:37 PM CDT | Severe Thunderstorm Warning | EAX | 38 min |
| Jul 4, 10:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 4, 11:58 PM CDT | Severe Thunderstorm Warning | EAX | 47 min |
| Jul 12, 5:15 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 12, 8:03 AM CDT | Special Weather Statement | EAX | 42 min |
| Jul 14, 1:37 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 17, 8:40 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 24, 5:07 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 24, 5:38 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 24, 6:51 AM CDT | Special Weather Statement | EAX | 39 min |
| Jul 24, 7:24 AM CDT | Special Weather Statement | EAX | 51 min |
| Jul 24, 7:37 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 24, 7:42 AM CDT | Severe Thunderstorm Warning | EAX | 48 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, 6:09 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 29, 7:16 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 29, 9:50 AM CDT | Mesoscale Discussion | SPC | 115 min |
| Jul 29, 10:28 AM CDT | Severe Thunderstorm Warning | EAX | 47 min |
| Jul 29, 10:54 AM CDT | Severe Thunderstorm Warning | EAX | 51 min |
| Jul 30, 6:52 PM CDT | Severe Thunderstorm Warning | EAX | 38 min |
| Jul 30, 7:13 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 30, 7:24 PM CDT | Severe Thunderstorm Warning | EAX | 36 min |
| Aug 2, 2:38 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 4, 3:04 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 4, 4:46 PM CDT | Areal Flood Advisory | EAX | 3 hr |
| Aug 4, 11:12 PM CDT | Areal Flood Warning | EAX | 12 hr |
| Aug 6, 1:43 AM CDT | Special Weather Statement | EAX | 47 min |
| Aug 10, 1:15 AM CDT | Dense Fog Advisory | EAX | 8 hr |
| Aug 11, 12:37 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 11, 3:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Aug 11, 5:53 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 9:48 PM CDT | Severe Thunderstorm Warning | EAX | 42 min |
| Aug 11, 10:28 PM CDT | Severe Thunderstorm Warning | EAX | 47 min |
| 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 26, 12:41 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 26, 2:44 AM CDT | Special Weather Statement | EAX | 61 min |
| Sep 23, 10:09 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 23, 3:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Oct 6, 2:57 AM CDT | Frost Advisory | EAX | 30 hr |
| Oct 17, 2:21 AM CDT | Frost Advisory | EAX | 7 hr |
| Oct 27, 2:50 AM CDT | Freeze Warning | EAX | 31 hr |
| Nov 24, 2:24 PM CST | Winter Weather Advisory | EAX | 40 hr |
| Dec 22, 7:34 PM CST | Dense Fog Advisory | EAX | 12 hr |
| Dec 23, 9:14 AM CST | Dense Fog Advisory | EAX | 5 hr |
| Dec 26, 10:23 AM CST | Winter Weather Advisory | EAX | 20 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 | 19 |
| Severe Thunderstorm Watch | 9 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 29 |
| Special Weather Statement | 7 |
| Flooding | |
| Areal Flood Warning | 1 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Weather Advisory | 7 |
| Heat | |
| Excessive Heat Warning | 2 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 1 |
| Frost Advisory | 3 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 6 |
| Fire | |
| Red Flag Warning | 1 |
| 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 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.