Alert archive / Missouri / DeKalb County
Weather alerts in DeKalb County, Missouri, 2015
133 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 133
- Warnings
- 31
- Watches
- 32
- Advisories
- 25
- Busiest month
- June31 alerts
- Busiest day
- June 12, 20156 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, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 12 | 6 | 50% | 2 | 100% | 15 min |
| Flash flood warnings | 7 | 4 | 43% | 2 | 50% | 142 min |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Kansas City, MO: tornado warnings | 37 | 14 | 62% | 25 | 84% | 18 min |
| NWS Kansas City, MO: severe thunderstorm warnings | 280 | 150 | 46% | 418 | 80% | 20 min |
| NWS Kansas City, MO: flash flood warnings | 80 | 47 | 41% | 149 | 90% | 113 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, 3:59 PM CST | Winter Weather Advisory | EAX | 38 hr |
| Jan 6, 3:21 AM CST | Wind Chill Advisory | EAX | 54 hr |
| Jan 31, 4:10 AM CST | Winter Weather Advisory | EAX | 41 hr |
| Feb 3, 2:49 PM CST | Winter Weather Advisory | EAX | 25 hr |
| Feb 4, 7:34 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 17, 3:07 PM CST | Wind Chill Advisory | EAX | 20 hr |
| Feb 20, 3:58 AM CST | Winter Weather Advisory | EAX | 29 hr |
| Feb 27, 3:34 PM CST | Winter Weather Advisory | EAX | 47 hr |
| Mar 14, 3:57 AM CDT | Fire Weather Watch | EAX | 23 hr |
| Mar 15, 3:23 AM CDT | Red Flag Warning | EAX | 17 hr |
| Mar 16, 3:28 AM CDT | Red Flag Warning | EAX | 17 hr |
| Mar 17, 11:06 AM CDT | Red Flag Warning | EAX | 8 hr |
| Mar 25, 3:51 AM CDT | Dense Fog Advisory | EAX | 6 hr |
| Mar 30, 9:22 AM CDT | Red Flag Warning | EAX | 10 hr |
| Apr 2, 1:37 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Apr 7, 3:51 AM CDT | Mesoscale Discussion | SPC | 54 min |
| Apr 8, 6:39 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 4, 2:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 4, 3:26 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 4, 6:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| May 10, 11:52 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 10, 12:50 PM CDT | Special Weather Statement | EAX | 25 min |
| May 10, 1:47 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 10, 3:13 PM CDT | Mesoscale Discussion | SPC | 92 min |
| May 15, 2:13 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 16, 5:57 PM CDT | Tornado Watch | SPC | 5 hr |
| May 16, 8:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| May 16, 9:59 PM CDT | Flash Flood Warning | EAX | 6 hr |
| May 17, 3:59 AM CDT | Flash Flood Warning | EAX | 3 hr |
| May 17, 5:57 AM CDT | Areal Flood Warning | EAX | 24 hr |
| May 22, 2:53 PM CDT | Flash Flood Watch | EAX | 61 hr |
| May 25, 5:08 PM CDT | Mesoscale Discussion | SPC | 67 min |
| May 25, 5:33 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 25, 8:18 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 3, 6:24 AM CDT | Flash Flood Warning | EAX | 6 hr |
| Jun 3, 11:26 AM CDT | Areal Flood Advisory | EAX | 6 hr |
| Jun 3, 12:20 PM CDT | Areal Flood Warning | EAX | 24 hr |
| Jun 3, 2:33 PM CDT | Flash Flood Watch | EAX | 69 hr |
| Jun 4, 2:16 AM CDT | Flash Flood Warning | EAX | 6 hr |
| Jun 4, 3:44 AM CDT | Special Weather Statement | EAX | 31 min |
| Jun 4, 12:34 PM CDT | Areal Flood Warning | EAX | 24 hr |
| Jun 7, 3:36 AM CDT | Flash Flood Watch | EAX | 23 hr |
| Jun 7, 3:33 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 7, 6:21 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 7, 7:23 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 10, 3:13 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 11, 4:35 AM CDT | Flash Flood Watch | EAX | 23 hr |
| Jun 11, 5:22 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 11, 5:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 11, 6:51 PM CDT | Severe Thunderstorm Warning | EAX | 39 min |
| Jun 11, 7:11 PM CDT | Flash Flood Warning | EAX | 6 hr |
| Jun 11, 7:17 PM CDT | Severe Thunderstorm Warning | EAX | 43 min |
| Jun 11, 7:42 PM CDT | Severe Thunderstorm Warning | EAX | 48 min |
| Jun 11, 8:49 PM CDT | Severe Thunderstorm Warning | EAX | 41 min |
| Jun 11, 9:25 PM CDT | Severe Thunderstorm Warning | EAX | 29 min |
| Jun 11, 10:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jun 21, 9:42 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 12:12 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 21, 2:38 PM CDT | Severe Thunderstorm Warning | EAX | 37 min |
| Jun 21, 3:03 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 21, 4:28 PM CDT | Heat Advisory | EAX | 27 hr |
| Jun 21, 4:38 PM CDT | Severe Thunderstorm Warning | EAX | 37 min |
| Jun 25, 3:57 AM CDT | Flash Flood Watch | EAX | 32 hr |
| Jun 25, 5:53 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 25, 9:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Jul 6, 3:44 AM CDT | Flash Flood Watch | EAX | 60 hr |
| Jul 6, 1:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jul 6, 2:55 PM CDT | Severe Thunderstorm Warning | EAX | 50 min |
| Jul 6, 3:26 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 11, 3:04 AM CDT | Heat Advisory | EAX | 4 days |
| Jul 12, 2:43 AM CDT | Excessive Heat Warning | EAX | 42 hr |
| Jul 15, 11:01 PM CDT | Severe Thunderstorm Warning | EAX | 33 min |
| Jul 15, 11:16 PM CDT | Areal Flood Advisory | EAX | 6 hr |
| Jul 15, 11:41 PM CDT | Flash Flood Warning | EAX | 10 hr |
| Jul 15, 11:43 PM CDT | Flash Flood Watch | EAX | 10 hr |
| Jul 16, 9:44 AM CDT | Areal Flood Warning | EAX | 6 hr |
| Jul 16, 3:46 PM CDT | Heat Advisory | EAX | 53 hr |
| Jul 18, 8:16 AM CDT | Special Weather Statement | EAX | 44 min |
| Jul 18, 8:30 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Jul 18, 10:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jul 18, 11:19 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 19, 3:47 AM CDT | Flash Flood Watch | EAX | 33 hr |
| Jul 22, 4:03 PM CDT | Heat Advisory | EAX | 3 days |
| Jul 25, 12:33 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 25, 3:43 PM CDT | Heat Advisory | EAX | 29 hr |
| Jul 25, 3:45 PM CDT | Flash Flood Watch | EAX | 18 hr |
| Jul 25, 9:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 26, 3:55 PM CDT | Heat Advisory | EAX | 53 hr |
| Jul 28, 8:04 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Jul 29, 1:28 AM CDT | Flash Flood Warning | EAX | 6 hr |
| Aug 2, 6:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Aug 2, 6:47 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 3, 12:50 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 3, 1:26 AM CDT | Severe Thunderstorm Warning | EAX | 34 min |
| Aug 3, 6:22 AM CDT | Special Weather Statement | EAX | 23 min |
| Aug 3, 11:14 AM CDT | Special Weather Statement | EAX | 46 min |
| Aug 3, 11:38 AM CDT | Severe Thunderstorm Warning | EAX | 37 min |
| Aug 3, 11:44 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 2:13 PM CDT | Heat Advisory | EAX | 31 hr |
| Aug 8, 3:42 PM CDT | Flash Flood Watch | EAX | 18 hr |
| Aug 8, 8:51 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 9, 12:49 AM CDT | Severe Thunderstorm Warning | EAX | 26 min |
| Aug 9, 1:37 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Aug 18, 5:15 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Aug 22, 2:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Aug 22, 3:48 PM CDT | Tornado Watch | SPC | 8 hr |
| Aug 22, 8:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 30, 8:30 AM CDT | Dense Fog Advisory | EAX | 90 min |
| Sep 7, 4:47 AM CDT | Areal Flood Advisory | EAX | 4 hr |
| Sep 17, 5:47 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Sep 17, 6:38 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 17, 9:30 PM CDT | Special Weather Statement | EAX | 45 min |
| Sep 17, 10:12 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Sep 18, 10:00 AM CDT | Flash Flood Watch | EAX | 11 hr |
| Oct 18, 3:49 PM CDT | Fire Weather Watch | EAX | 11 hr |
| Oct 19, 2:49 AM CDT | Red Flag Warning | EAX | 16 hr |
| Oct 29, 3:05 PM CDT | Frost Advisory | EAX | 17 hr |
| Nov 5, 12:55 PM CST | Mesoscale Discussion | SPC | 95 min |
| Nov 5, 1:16 PM CST | Severe Thunderstorm Watch | SPC | 7 hr |
| Nov 5, 3:17 PM CST | Mesoscale Discussion | SPC | 118 min |
| Nov 10, 3:54 PM CST | Wind Advisory | EAX | 38 hr |
| Nov 11, 10:17 AM CST | Mesoscale Discussion | SPC | 118 min |
| Nov 11, 11:25 AM CST | Tornado Watch | SPC | 6 hr |
| Nov 11, 1:42 PM CST | Mesoscale Discussion | SPC | 93 min |
| Nov 11, 1:56 PM CST | High Wind Warning | EAX | 4 hr |
| Nov 26, 4:04 AM CST | Freezing Rain Advisory | EAX | 3 days |
| Dec 7, 12:18 AM CST | Dense Fog Advisory | EAX | 10 hr |
| Dec 11, 10:28 PM CST | Dense Fog Advisory | EAX | 12 hr |
| Dec 26, 2:02 PM CST | Winter Storm Watch | EAX | 15 hr |
| Dec 27, 4:45 AM CST | Winter Storm Warning | EAX | 40 hr |
| Dec 27, 10:13 PM CST | Winter Weather Advisory | EAX | 23 hr |
| Dec 28, 3:35 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Dec 28, 3:42 PM CST | Mesoscale Discussion | SPC | 4 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 archive20142016
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.