Alert archive / Kansas / Ottawa County
Weather alerts in Ottawa County, Kansas, 2019
232 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Ottawa County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 232
- Warnings
- 67
- Watches
- 41
- Advisories
- 45
- Busiest month
- May52 alerts
- Busiest day
- May 24, 201910 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Ottawa County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 29 | 9 | 69% | 8 | 88% | 19 min |
| Flash flood warnings | 9 | 5 | 44% | 2 | 100% | 58 min |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Topeka, KS: tornado warnings | 52 | 15 | 71% | 36 | 89% | 18 min |
| NWS Topeka, KS: severe thunderstorm warnings | 330 | 145 | 56% | 363 | 85% | 24 min |
| NWS Topeka, KS: flash flood warnings | 74 | 30 | 59% | 77 | 94% | 90 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 10, 3:14 PM CST | Winter Weather Advisory | TOP | 48 hr |
| Jan 11, 8:37 PM CST | Winter Storm Warning | TOP | 16 hr |
| Jan 14, 9:06 PM CST | Dense Fog Advisory | TOP | 16 hr |
| Jan 15, 3:31 PM CST | Dense Fog Advisory | TOP | 24 hr |
| Jan 16, 4:04 AM CST | Winter Weather Advisory | TOP | 28 hr |
| Jan 17, 3:03 PM CST | Winter Weather Advisory | TOP | 35 hr |
| Jan 21, 3:01 PM CST | Winter Weather Advisory | TOP | 36 hr |
| Jan 27, 3:24 PM CST | Wind Advisory | TOP | 27 hr |
| Feb 2, 3:34 AM CST | Dense Fog Advisory | TOP | 8 hr |
| Feb 5, 3:12 AM CST | Winter Weather Advisory | TOP | 56 hr |
| Feb 14, 3:15 AM CST | Winter Weather Advisory | TOP | 40 hr |
| Feb 16, 2:40 AM CST | Winter Weather Advisory | TOP | 27 hr |
| Feb 18, 3:25 PM CST | Winter Weather Advisory | TOP | 40 hr |
| Feb 19, 3:24 AM CST | Winter Storm Warning | TOP | 28 hr |
| Feb 21, 2:24 PM CST | Winter Storm Watch | TOP | 23 hr |
| Feb 22, 1:53 PM CST | Blizzard Warning | TOP | 31 hr |
| Mar 1, 3:22 AM CST | Winter Storm Watch | TOP | 24 hr |
| Mar 1, 3:23 PM CST | Winter Storm Warning | TOP | 45 hr |
| Mar 2, 3:45 AM CST | Wind Chill Advisory | TOP | 56 hr |
| Mar 3, 1:23 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Mar 4, 8:59 PM CST | Wind Chill Advisory | TOP | 11 hr |
| Mar 8, 4:37 AM CST | Dense Fog Advisory | TOP | 5 hr |
| Mar 8, 3:49 PM CST | Wind Advisory | TOP | 26 hr |
| Mar 8, 6:06 PM CST | Dense Fog Advisory | TOP | 18 hr |
| Mar 11, 3:24 AM CDT | Flood Watch | TOP | 56 hr |
| Mar 12, 4:01 AM CDT | High Wind Watch | TOP | 24 hr |
| Mar 12, 3:21 PM CDT | Wind Advisory | TOP | 52 hr |
| Mar 12, 10:48 PM CDT | Special Weather Statement | TOP | 27 min |
| Mar 13, 4:01 AM CDT | High Wind Warning | TOP | 35 hr |
| Mar 13, 3:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Mar 23, 2:56 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 27, 11:47 AM CDT | Wind Advisory | TOP | 7 hr |
| Mar 28, 7:43 AM CDT | Special Weather Statement | TOP | 32 min |
| Mar 28, 7:52 AM CDT | Mesoscale Discussion | SPC | 113 min |
| Mar 28, 7:59 AM CDT | Severe Thunderstorm Warning | TOP | 31 min |
| Mar 29, 9:37 AM CDT | Special Weather Statement | TOP | 38 min |
| Apr 6, 3:30 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 7, 1:43 AM CDT | Mesoscale Discussion | SPC | 62 min |
| Apr 10, 3:54 PM CDT | Wind Advisory | TOP | 20 hr |
| Apr 10, 6:39 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 10, 10:08 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 11, 12:15 PM CDT | Freeze Warning | TOP | 22 hr |
| Apr 12, 3:44 PM CDT | Freeze Warning | TOP | 17 hr |
| Apr 13, 1:57 PM CDT | Freeze Warning | TOP | 19 hr |
| Apr 18, 2:56 PM CDT | Special Weather Statement | TOP | 34 min |
| Apr 18, 3:31 PM CDT | Special Weather Statement | TOP | 29 min |
| Apr 21, 7:15 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Apr 21, 9:53 PM CDT | Special Weather Statement | TOP | 52 min |
| Apr 27, 3:38 AM CDT | Wind Advisory | TOP | 13 hr |
| Apr 28, 3:28 AM CDT | Flood Watch | TOP | 25 hr |
| Apr 28, 8:00 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Apr 28, 8:40 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Apr 28, 11:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 3, 10:32 PM CDT | Dense Fog Advisory | TOP | 11 hr |
| May 5, 6:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| May 5, 6:52 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 5, 9:18 PM CDT | Mesoscale Discussion | SPC | 57 min |
| May 6, 3:50 AM CDT | Flash Flood Watch | TOP | 68 hr |
| May 6, 4:33 PM CDT | Severe Thunderstorm Warning | TOP | 42 min |
| May 6, 5:08 PM CDT | Mesoscale Discussion | SPC | 97 min |
| May 6, 11:46 PM CDT | Flash Flood Warning | TOP | 4 hr |
| May 8, 10:12 AM CDT | River Flood Warning | TOP | 5 days |
| May 8, 10:12 AM CDT | River Flood Warning | TOP | 70 hr |
| May 8, 8:50 PM CDT | River Flood Warning | TOP | 43 hr |
| May 8, 8:50 PM CDT | River Flood Warning | TOP | 18 hr |
| May 17, 10:35 PM CDT | Tornado Watch | SPC | 3 hr |
| May 17, 10:53 PM CDT | Severe Thunderstorm Warning | TOP | 52 min |
| May 17, 11:14 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 17, 11:33 PM CDT | Severe Thunderstorm Warning | TOP | 42 min |
| May 18, 12:14 AM CDT | Special Weather Statement | TOP | 61 min |
| May 18, 2:22 AM CDT | Special Weather Statement | TOP | 23 min |
| May 18, 10:51 PM CDT | Areal Flood Advisory | TOP | 4 hr |
| May 19, 4:17 AM CDT | Flash Flood Watch | TOP | 63 hr |
| May 19, 8:04 PM CDT | River Flood Warning | TOP | 10 days |
| May 19, 8:06 PM CDT | River Flood Warning | TOP | 21 days |
| May 20, 10:16 AM CDT | River Flood Warning | TOP | 7 days |
| May 21, 2:34 PM CDT | Special Weather Statement | TOP | 26 min |
| May 21, 3:34 PM CDT | Mesoscale Discussion | SPC | 56 min |
| May 21, 3:56 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 21, 5:14 PM CDT | Severe Thunderstorm Warning | TOP | 46 min |
| May 21, 5:59 PM CDT | Special Weather Statement | TOP | 31 min |
| May 21, 6:06 PM CDT | Mesoscale Discussion | SPC | 114 min |
| May 21, 9:39 PM CDT | Areal Flood Warning | TOP | 3 hr |
| May 22, 3:24 AM CDT | Flash Flood Watch | TOP | 5 days |
| May 23, 5:13 PM CDT | River Flood Warning | TOP | 17 hr |
| May 23, 5:56 PM CDT | Tornado Watch | SPC | 6 hr |
| May 23, 7:07 PM CDT | Mesoscale Discussion | SPC | 83 min |
| May 23, 7:20 PM CDT | Severe Thunderstorm Warning | TOP | 40 min |
| May 23, 7:28 PM CDT | Special Weather Statement | TOP | 32 min |
| May 23, 7:30 PM CDT | Severe Thunderstorm Warning | TOP | 45 min |
| May 23, 7:40 PM CDT | Severe Thunderstorm Warning | TOP | 50 min |
| May 23, 8:08 PM CDT | Areal Flood Warning | TOP | 3 hr |
| May 23, 11:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| May 24, 1:37 AM CDT | Tornado Watch | SPC | 5 hr |
| May 24, 2:17 AM CDT | Severe Thunderstorm Warning | TOP | 43 min |
| May 24, 2:56 AM CDT | Severe Thunderstorm Warning | TOP | 49 min |
| May 26, 5:27 PM CDT | Mesoscale Discussion | SPC | 63 min |
| May 26, 8:53 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 26, 11:23 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 27, 12:56 AM CDT | Severe Thunderstorm Warning | TOP | 64 min |
| May 27, 1:22 AM CDT | Severe Thunderstorm Warning | TOP | 53 min |
| May 27, 7:34 PM CDT | Mesoscale Discussion | SPC | 56 min |
| May 28, 9:39 AM CDT | Mesoscale Discussion | SPC | 96 min |
| May 28, 1:56 PM CDT | Tornado Watch | SPC | 8 hr |
| May 28, 5:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 9, 3:42 AM CDT | Special Weather Statement | TOP | 33 min |
| Jun 14, 11:39 PM CDT | Special Weather Statement | TOP | 36 min |
| Jun 18, 1:17 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 21, 3:20 AM CDT | Special Weather Statement | TOP | 55 min |
| Jun 21, 3:34 AM CDT | Severe Thunderstorm Warning | TOP | 56 min |
| Jun 21, 4:34 AM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 21, 6:50 AM CDT | Special Weather Statement | TOP | 40 min |
| Jun 21, 7:47 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 21, 11:05 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 22, 2:51 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 22, 4:32 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 22, 1:58 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 22, 2:42 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 22, 4:52 PM CDT | Severe Thunderstorm Warning | TOP | 38 min |
| Jun 22, 5:30 PM CDT | Severe Thunderstorm Warning | TOP | 45 min |
| Jun 22, 6:21 PM CDT | Flash Flood Warning | TOP | 4 hr |
| Jun 22, 7:46 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 23, 1:32 AM CDT | Areal Flood Advisory | TOP | 3 hr |
| Jun 25, 1:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 25, 3:08 PM CDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 25, 8:29 PM CDT | Severe Thunderstorm Warning | TOP | 46 min |
| Jun 25, 8:59 PM CDT | Severe Thunderstorm Warning | TOP | 46 min |
| Jun 25, 9:17 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jun 25, 10:07 PM CDT | Special Weather Statement | TOP | 38 min |
| Jun 27, 3:14 PM CDT | Heat Advisory | TOP | 29 hr |
| Jun 28, 3:13 AM CDT | Heat Advisory | TOP | 41 hr |
| Jun 29, 2:58 AM CDT | Heat Advisory | TOP | 40 hr |
| Jul 4, 3:56 AM CDT | Areal Flood Advisory | TOP | 3 hr |
| Jul 4, 4:22 AM CDT | Flash Flood Warning | TOP | 4 hr |
| Jul 4, 8:05 AM CDT | Areal Flood Warning | TOP | 4 hr |
| Jul 4, 11:02 AM CDT | River Flood Warning | TOP | 26 hr |
| Jul 5, 4:54 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 2:27 PM CDT | Flash Flood Watch | TOP | 16 hr |
| Jul 10, 5:58 AM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jul 15, 3:46 PM CDT | Excessive Heat Watch | TOP | 24 hr |
| Jul 16, 3:37 PM CDT | Excessive Heat Warning | TOP | 5 days |
| Jul 21, 3:30 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 28, 8:11 PM CDT | Special Weather Statement | TOP | 34 min |
| Jul 31, 3:26 PM CDT | Flash Flood Watch | TOP | 60 hr |
| Aug 1, 10:54 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 3:34 AM CDT | Flash Flood Warning | TOP | 4 hr |
| Aug 2, 4:50 AM CDT | Flash Flood Warning | TOP | 115 min |
| Aug 2, 7:22 AM CDT | River Flood Warning | TOP | 64 hr |
| Aug 2, 7:25 AM CDT | Flash Flood Warning | TOP | 110 min |
| Aug 2, 8:28 AM CDT | River Flood Warning | TOP | 49 hr |
| Aug 2, 9:15 AM CDT | Areal Flood Warning | TOP | 8 hr |
| Aug 2, 9:12 PM CDT | River Flood Warning | TOP | 51 hr |
| Aug 7, 3:04 AM CDT | Flash Flood Watch | TOP | 32 hr |
| Aug 7, 3:44 AM CDT | Mesoscale Discussion | SPC | 61 min |
| Aug 7, 4:08 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 7, 5:00 AM CDT | Special Weather Statement | TOP | 30 min |
| Aug 11, 1:46 AM CDT | Mesoscale Discussion | SPC | 119 min |
| Aug 11, 3:33 AM CDT | Special Weather Statement | TOP | 27 min |
| Aug 11, 3:56 AM CDT | Special Weather Statement | TOP | 34 min |
| Aug 11, 4:08 AM CDT | Severe Thunderstorm Warning | TOP | 52 min |
| Aug 11, 9:11 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 9:40 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 11, 11:30 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 12, 1:32 AM CDT | Severe Thunderstorm Warning | TOP | 43 min |
| Aug 12, 1:54 AM CDT | Special Weather Statement | TOP | 36 min |
| Aug 15, 3:51 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Aug 15, 6:10 PM CDT | Tornado Watch | SPC | 6 hr |
| Aug 15, 8:22 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Aug 16, 8:43 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 16, 11:40 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 17, 12:21 AM CDT | Severe Thunderstorm Warning | TOP | 54 min |
| Aug 17, 1:28 AM CDT | Flash Flood Warning | TOP | 4 hr |
| Aug 17, 2:40 AM CDT | Mesoscale Discussion | SPC | 95 min |
| Aug 17, 8:25 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 17, 10:40 PM CDT | Special Weather Statement | TOP | 50 min |
| Aug 18, 2:38 PM CDT | Heat Advisory | TOP | 29 hr |
| Aug 18, 2:38 PM CDT | Heat Advisory | TOP | 54 hr |
| Aug 21, 1:46 PM CDT | Flash Flood Watch | TOP | 13 hr |
| Aug 24, 3:06 PM CDT | Flash Flood Watch | TOP | 15 hr |
| Aug 24, 11:04 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Aug 24, 11:24 PM CDT | Areal Flood Advisory | TOP | 3 hr |
| Aug 24, 11:54 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 25, 1:32 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Aug 25, 1:34 AM CDT | Flash Flood Warning | TOP | 4 hr |
| Aug 29, 3:19 PM CDT | Flash Flood Watch | TOP | 18 hr |
| Aug 29, 7:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 29, 7:50 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 29, 9:36 PM CDT | Severe Thunderstorm Warning | TOP | 24 min |
| Aug 29, 9:52 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Aug 29, 10:00 PM CDT | Severe Thunderstorm Warning | TOP | 45 min |
| Aug 29, 10:45 PM CDT | Severe Thunderstorm Warning | TOP | 45 min |
| Aug 30, 5:29 AM CDT | River Flood Warning | TOP | 3 days |
| Sep 1, 5:25 AM CDT | Dense Fog Advisory | TOP | 5 hr |
| Sep 8, 11:37 PM CDT | Special Weather Statement | TOP | 23 min |
| Sep 14, 6:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 20, 3:51 AM CDT | Flash Flood Watch | TOP | 55 hr |
| Sep 21, 5:07 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 21, 7:25 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 21, 9:08 PM CDT | Severe Thunderstorm Warning | TOP | 52 min |
| Sep 21, 9:58 PM CDT | Special Weather Statement | TOP | 47 min |
| Sep 21, 10:32 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Sep 24, 2:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Sep 24, 5:30 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Sep 24, 5:42 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Sep 24, 5:49 PM CDT | Special Weather Statement | TOP | 56 min |
| Sep 24, 6:27 PM CDT | Severe Thunderstorm Warning | TOP | 48 min |
| Sep 24, 7:13 PM CDT | Severe Thunderstorm Warning | TOP | 47 min |
| Sep 24, 7:40 PM CDT | Areal Flood Advisory | TOP | 3 hr |
| Sep 24, 8:01 PM CDT | Special Weather Statement | TOP | 29 min |
| Sep 24, 8:25 PM CDT | Severe Thunderstorm Warning | TOP | 50 min |
| Sep 24, 8:26 PM CDT | Areal Flood Advisory | TOP | 3 hr |
| Sep 24, 8:36 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Sep 24, 8:50 PM CDT | Flash Flood Warning | TOP | 4 hr |
| Sep 24, 9:10 PM CDT | Severe Thunderstorm Warning | TOP | 43 min |
| Sep 28, 11:15 PM CDT | Dense Fog Advisory | TOP | 6 hr |
| Sep 30, 3:36 AM CDT | Flash Flood Watch | TOP | 57 hr |
| Oct 1, 2:45 PM CDT | Tornado Watch | SPC | 7 hr |
| Oct 1, 4:58 PM CDT | Severe Thunderstorm Warning | TOP | 47 min |
| Oct 9, 3:12 AM CDT | Freeze Watch | TOP | 24 hr |
| Oct 10, 3:19 AM CDT | Freeze Warning | TOP | 31 hr |
| Oct 11, 3:13 AM CDT | Freeze Warning | TOP | 30 hr |
| Oct 17, 2:54 PM CDT | Wind Advisory | TOP | 27 hr |
| Oct 21, 4:31 AM CDT | Wind Advisory | TOP | 14 hr |
| Oct 29, 3:26 AM CDT | Winter Weather Advisory | TOP | 46 hr |
| Nov 22, 10:57 AM CST | Winter Weather Advisory | TOP | 3 hr |
| Nov 26, 3:25 AM CST | Wind Advisory | TOP | 23 hr |
| Nov 27, 3:02 PM CST | Winter Weather Advisory | TOP | 33 hr |
| Nov 29, 3:12 PM CST | High Wind Warning | TOP | 39 hr |
| Nov 29, 3:12 PM CST | Wind Advisory | TOP | 48 hr |
| Dec 9, 2:52 AM CST | Wind Advisory | TOP | 7 hr |
| Dec 14, 3:34 AM CST | Winter Weather Advisory | TOP | 40 hr |
| Dec 16, 9:20 PM CST | Dense Fog Advisory | TOP | 14 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 archive20182020
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.