Alert archive / Kansas / Leavenworth County
Weather alerts in Leavenworth County, Kansas, 2018
126 weather alerts in 2018, 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 2018. Tap one for its archive.
- Alerts
- 126
- Warnings
- 39
- Watches
- 14
- Advisories
- 36
- Busiest month
- June26 alerts
- Busiest day
- July 1, 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.
Leavenworth County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 17 | 11 | 35% | 5 | 100% | 37 min |
| Flash flood warnings | 1 | 1 | 0% | 2 | 50% | 170 min |
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 10, 2:01 PM CST | Winter Weather Advisory | EAX | 28 hr |
| Jan 11, 6:52 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 13, 2:54 PM CST | Winter Weather Advisory | EAX | 21 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 21, 9:05 PM CST | Special Weather Statement | EAX | 25 min |
| Jan 26, 3:52 AM CST | Wind Advisory | EAX | 14 hr |
| Feb 4, 10:33 AM CST | Winter Weather Advisory | EAX | 4 hr |
| Feb 6, 3:18 AM CST | Winter Weather Advisory | EAX | 21 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 20, 4:19 AM CST | Ice Storm Warning | EAX | 9 hr |
| Feb 21, 3:42 AM CST | Winter Weather Advisory | EAX | 44 hr |
| Mar 5, 11:23 AM CST | Wind Advisory | EAX | 6 hr |
| Mar 5, 2:44 PM CST | Wind Advisory | EAX | 27 hr |
| Mar 14, 3:02 AM CDT | Red Flag Warning | EAX | 16 hr |
| Mar 15, 9:04 AM CDT | Red Flag Warning | EAX | 10 hr |
| Mar 26, 2:37 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 29, 3:29 AM CDT | Dense Fog Advisory | EAX | 5 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, 2:06 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 13, 2:19 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 13, 4:42 PM CDT | Severe Thunderstorm Warning | EAX | 48 min |
| Apr 13, 5:18 PM CDT | Severe Thunderstorm Warning | EAX | 42 min |
| Apr 13, 5:55 PM CDT | Severe Thunderstorm Warning | EAX | 50 min |
| Apr 13, 7:37 PM CDT | Special Weather Statement | EAX | 38 min |
| Apr 13, 7:54 PM CDT | Severe Thunderstorm Warning | EAX | 36 min |
| 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 |
| Apr 30, 2:51 AM CDT | Wind Advisory | EAX | 16 hr |
| May 1, 9:06 PM CDT | Mesoscale Discussion | SPC | 54 min |
| 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 3, 2:36 PM CDT | Mesoscale Discussion | SPC | 114 min |
| May 3, 7:43 PM CDT | Mesoscale Discussion | SPC | 62 min |
| May 3, 10:58 PM CDT | Special Weather Statement | EAX | 47 min |
| May 13, 8:00 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 14, 12:54 PM CDT | Mesoscale Discussion | SPC | 96 min |
| May 14, 1:20 PM CDT | Severe Thunderstorm Watch | SPC | 11 hr |
| May 19, 1:42 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 19, 4:21 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| May 24, 3:18 PM CDT | Special Weather Statement | EAX | 27 min |
| May 24, 3:41 PM CDT | Special Weather Statement | EAX | 49 min |
| May 26, 12:59 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 28, 7:44 PM CDT | Special Weather Statement | EAX | 31 min |
| May 30, 12:07 AM CDT | Areal Flood Advisory | EAX | 4 hr |
| Jun 2, 12:50 AM CDT | Mesoscale Discussion | SPC | 55 min |
| Jun 2, 3:46 AM CDT | Special Weather Statement | EAX | 44 min |
| Jun 2, 4:26 AM CDT | Severe Thunderstorm Warning | EAX | 34 min |
| Jun 2, 4:47 AM CDT | Severe Thunderstorm Warning | EAX | 43 min |
| Jun 6, 11:23 PM CDT | Special Weather Statement | EAX | 52 min |
| Jun 7, 1:11 AM CDT | Special Weather Statement | EAX | 64 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, 10:12 PM CDT | Severe Thunderstorm Warning | EAX | 33 min |
| Jun 11, 10:47 PM CDT | Severe Thunderstorm Warning | EAX | 28 min |
| Jun 11, 11:15 PM CDT | Severe Thunderstorm Warning | EAX | 30 min |
| Jun 11, 11:45 PM CDT | Severe Thunderstorm Warning | EAX | 30 min |
| Jun 12, 12:12 AM CDT | Severe Thunderstorm Warning | EAX | 33 min |
| Jun 14, 2:44 PM CDT | Heat Advisory | EAX | 5 days |
| Jun 25, 9:24 PM CDT | River Flood Warning | EAX | 71 hr |
| Jun 26, 5:57 AM CDT | Special Weather Statement | EAX | 48 min |
| Jun 26, 12:35 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 26, 12:36 PM CDT | Severe Thunderstorm Warning | EAX | 39 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 |
| Jun 30, 4:12 PM CDT | Severe Thunderstorm Warning | EAX | 33 min |
| Jun 30, 4:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jun 30, 4:57 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 30, 5:27 PM CDT | Severe Thunderstorm Warning | EAX | 48 min |
| Jun 30, 7:08 PM CDT | Severe Thunderstorm Warning | EAX | 67 min |
| Jun 30, 8:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jun 30, 8:56 PM CDT | Areal Flood Advisory | EAX | 3 hr |
| Jun 30, 9:09 PM CDT | Flash Flood Warning | EAX | 4 hr |
| Jun 30, 10:07 PM CDT | Severe Thunderstorm Warning | EAX | 38 min |
| Jun 30, 10:22 PM CDT | River Flood Warning | EAX | 21 hr |
| Jul 1, 12:48 AM CDT | Areal Flood Warning | EAX | 6 hr |
| Jul 1, 6:38 AM CDT | Areal Flood Warning | EAX | 6 hr |
| Jul 1, 12:34 PM CDT | Areal Flood Warning | EAX | 6 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, 11:37 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 19, 12:26 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 19, 2:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jul 19, 3:30 PM CDT | Severe Thunderstorm Warning | EAX | 60 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 24, 3:48 PM CDT | Heat Advisory | EAX | 51 hr |
| Aug 30, 3:44 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 31, 1:10 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Sep 3, 8:54 PM CDT | River Flood Warning | EAX | 55 hr |
| Sep 6, 4:27 AM CDT | Dense Fog Advisory | EAX | 6 hr |
| Oct 3, 6:12 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 5, 2:39 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 7, 9:33 AM CDT | River Flood Warning | EAX | 8 days |
| Oct 7, 3:03 PM CDT | Flash Flood Watch | EAX | 19 hr |
| Oct 8, 3:56 AM CDT | Flood Watch | EAX | 47 hr |
| Oct 8, 8:44 AM CDT | Areal Flood Warning | EAX | 3 hr |
| Oct 8, 9:29 AM CDT | River Flood Warning | EAX | 46 hr |
| Oct 8, 1:49 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Oct 8, 9:37 PM CDT | River Flood Warning | EAX | 64 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 9, 3:50 PM CDT | Areal Flood Warning | EAX | 12 hr |
| Oct 10, 3:31 AM CDT | Areal Flood Warning | EAX | 9 hr |
| Oct 13, 4:25 AM CDT | Dense Fog Advisory | EAX | 4 hr |
| Oct 14, 3:26 AM CDT | Freeze Warning | EAX | 31 hr |
| 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 23, 3:15 AM CST | Winter Storm Watch | EAX | 24 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 |
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 | 17 |
| Severe Thunderstorm Watch | 7 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 27 |
| Special Weather Statement | 10 |
| Flooding | |
| Areal Flood Warning | 6 |
| Flash Flood Warning | 1 |
| River Flood Warning | 6 |
| Flash Flood Watch | 2 |
| Flood Watch | 1 |
| Areal Flood Advisory | 2 |
| Winter | |
| Blizzard Warning | 1 |
| Ice Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 14 |
| Heat | |
| Excessive Heat Warning | 1 |
| Heat Advisory | 8 |
| Cold | |
| Freeze Warning | 4 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 5 |
| Fire | |
| Red Flag Warning | 2 |
| 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.