Alert archive / Kansas / Leavenworth County
Weather alerts in Leavenworth County, Kansas, 2012
80 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Leavenworth County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 80
- Warnings
- 22
- Watches
- 8
- Advisories
- 22
- Busiest month
- March14 alerts
- Busiest day
- August 8, 20125 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Leavenworth County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 10 | 7 | 30% | 13 | 46% | 13 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Kansas City, MO: tornado warnings | 3 | 2 | 33% | 4 | 75% | 4 min |
| NWS Kansas City, MO: severe thunderstorm warnings | 111 | 50 | 55% | 137 | 66% | 15 min |
| NWS Kansas City, MO: flash flood warnings | 8 | 6 | 25% | 8 | 88% | 41 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 11, 11:31 AM CST | Winter Weather Advisory | EAX | 29 hr |
| Jan 26, 3:20 AM CST | Dense Fog Advisory | EAX | 7 hr |
| Jan 29, 2:20 PM CST | Fire Weather Watch | EAX | 13 hr |
| Jan 30, 3:27 AM CST | Red Flag Warning | EAX | 15 hr |
| Feb 5, 9:52 PM CST | Freezing Fog Advisory | EAX | 12 hr |
| Feb 12, 4:08 AM CST | Winter Weather Advisory | EAX | 38 hr |
| Feb 14, 2:48 AM CST | Dense Fog Advisory | EAX | 7 hr |
| Feb 23, 3:37 AM CST | Wind Advisory | EAX | 18 hr |
| Feb 28, 9:44 PM CST | Severe Thunderstorm Warning | EAX | 31 min |
| Feb 28, 9:47 PM CST | Severe Thunderstorm Warning | EAX | 28 min |
| Feb 28, 9:47 PM CST | Mesoscale Discussion | SPC | 58 min |
| Feb 28, 10:30 PM CST | Severe Thunderstorm Warning | EAX | 30 min |
| Mar 4, 3:41 AM CST | Wind Advisory | EAX | 14 hr |
| Mar 4, 3:46 AM CST | Red Flag Warning | EAX | 14 hr |
| Mar 5, 2:46 PM CST | Wind Advisory | EAX | 28 hr |
| Mar 6, 4:43 AM CST | Red Flag Warning | EAX | 14 hr |
| Mar 7, 12:19 AM CST | Wind Advisory | EAX | 15 hr |
| Mar 18, 3:28 AM CDT | Flood Watch | EAX | 3 days |
| Mar 22, 4:35 PM CDT | Special Weather Statement | EAX | 40 min |
| Mar 27, 8:43 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 28, 2:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Mar 28, 5:30 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 28, 5:48 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Mar 28, 7:53 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 28, 9:04 PM CDT | Special Weather Statement | EAX | 41 min |
| Mar 28, 9:16 PM CDT | Special Weather Statement | EAX | 44 min |
| Apr 14, 11:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Apr 15, 4:00 AM CDT | Special Weather Statement | EAX | 45 min |
| Apr 15, 4:17 AM CDT | Wind Advisory | EAX | 16 hr |
| Apr 15, 4:32 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Apr 27, 6:07 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Apr 27, 7:00 PM CDT | Mesoscale Discussion | SPC | 30 min |
| Apr 27, 7:18 PM CDT | Severe Thunderstorm Watch | SPC | 95 min |
| May 6, 2:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| May 6, 3:49 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 6, 6:48 PM CDT | Areal Flood Advisory | EAX | 2 hr |
| May 24, 7:19 PM CDT | Special Weather Statement | EAX | 26 min |
| May 30, 12:52 AM CDT | Special Weather Statement | EAX | 23 min |
| May 30, 12:59 AM CDT | Severe Thunderstorm Warning | EAX | 31 min |
| Jun 10, 6:20 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Jun 10, 10:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 14, 11:22 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 16, 11:40 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Jun 22, 3:28 PM CDT | Heat Advisory | EAX | 53 hr |
| Jun 26, 4:02 AM CDT | Excessive Heat Watch | EAX | 12 hr |
| Jun 26, 4:03 PM CDT | Excessive Heat Warning | EAX | 4 days |
| Jun 30, 8:45 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jun 30, 9:23 PM CDT | Special Weather Statement | EAX | 22 min |
| Jul 2, 3:36 PM CDT | Heat Advisory | EAX | 5 days |
| Jul 4, 9:47 AM CDT | Excessive Heat Warning | EAX | 3 days |
| Jul 8, 11:30 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 8, 3:43 PM CDT | Special Weather Statement | EAX | 32 min |
| Jul 8, 3:48 PM CDT | Severe Thunderstorm Warning | EAX | 27 min |
| Jul 8, 4:13 PM CDT | Severe Thunderstorm Warning | EAX | 32 min |
| Jul 17, 3:35 PM CDT | Excessive Heat Warning | EAX | 8 days |
| Jul 25, 5:04 AM CDT | Red Flag Warning | EAX | 14 hr |
| Jul 27, 3:24 PM CDT | Heat Advisory | EAX | 52 hr |
| Aug 1, 3:41 AM CDT | Heat Advisory | EAX | 15 hr |
| Aug 2, 3:34 PM CDT | Heat Advisory | EAX | 27 hr |
| Aug 8, 12:28 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Aug 8, 4:53 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 8, 6:24 PM CDT | Special Weather Statement | EAX | 36 min |
| Aug 8, 6:29 PM CDT | Severe Thunderstorm Warning | EAX | 31 min |
| Aug 8, 6:45 PM CDT | Severe Thunderstorm Warning | EAX | 30 min |
| Aug 8, 7:03 PM CDT | Severe Thunderstorm Warning | EAX | 27 min |
| Aug 8, 7:07 PM CDT | Special Weather Statement | EAX | 38 min |
| Aug 8, 7:15 PM CDT | Severe Thunderstorm Warning | EAX | 30 min |
| Aug 12, 3:39 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 21, 4:08 AM CDT | Fire Weather Watch | EAX | 12 hr |
| Aug 21, 3:41 PM CDT | Red Flag Warning | EAX | 27 hr |
| Aug 22, 3:34 PM CDT | Red Flag Warning | EAX | 27 hr |
| Sep 1, 5:49 AM CDT | Areal Flood Advisory | EAX | 6 hr |
| Sep 21, 1:07 PM CDT | Red Flag Warning | EAX | 5 hr |
| Oct 6, 3:32 AM CDT | Freeze Warning | EAX | 28 hr |
| Oct 17, 3:30 PM CDT | Wind Advisory | EAX | 28 hr |
| Oct 26, 3:38 AM CDT | Freeze Warning | EAX | 28 hr |
| Dec 1, 9:23 PM CST | Dense Fog Advisory | EAX | 18 hr |
| Dec 16, 8:27 PM CST | Dense Fog Advisory | EAX | 10 hr |
| Dec 18, 3:18 PM CST | Winter Weather Advisory | EAX | 48 hr |
| Dec 30, 12:01 PM CST | Winter Weather Advisory | EAX | 42 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 | 10 |
| Severe Thunderstorm Watch | 4 |
| Mesoscale Discussion | 18 |
| Special Weather Statement | 10 |
| Flooding | |
| Flood Watch | 1 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Weather Advisory | 4 |
| Heat | |
| Excessive Heat Warning | 3 |
| Excessive Heat Watch | 1 |
| Heat Advisory | 5 |
| Cold | |
| Freeze Warning | 2 |
| Wind and dust | |
| Wind Advisory | 6 |
| Fire | |
| Red Flag Warning | 7 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 4 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20112013
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.