Alert archive / Kansas / Ottawa County
Weather alerts in Ottawa County, Kansas, 2010
151 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 151
- Warnings
- 37
- Watches
- 31
- Advisories
- 36
- Busiest month
- June31 alerts
- Busiest day
- April 30, 20107 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, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 15 | 10 | 33% | 7 | 71% | 22 min |
| Flash flood warnings | 5 | 5 | 0% | 2 | 100% | 36 min |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Topeka, KS: tornado warnings | 32 | 3 | 91% | 7 | 43% | 4 min |
| NWS Topeka, KS: severe thunderstorm warnings | 245 | 165 | 33% | 513 | 86% | 21 min |
| NWS Topeka, KS: flash flood warnings | 50 | 34 | 32% | 82 | 85% | 84 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 5, 2:20 PM CST | Winter Weather Advisory | TOP | 52 hr |
| Jan 6, 3:40 PM CST | Wind Chill Watch | TOP | 12 hr |
| Jan 7, 3:27 AM CST | Wind Chill Warning | TOP | 45 hr |
| Jan 9, 12:34 AM CST | Wind Chill Advisory | TOP | 3 hr |
| Jan 15, 3:07 PM CST | Dense Fog Advisory | TOP | 69 hr |
| Jan 18, 11:54 AM CST | Dense Fog Advisory | TOP | 24 hr |
| Jan 19, 2:58 AM CST | Freezing Fog Advisory | TOP | 9 hr |
| Jan 19, 5:29 PM CST | Dense Fog Advisory | TOP | 14 hr |
| Feb 3, 3:30 AM CST | Freezing Fog Advisory | TOP | 6 hr |
| Feb 3, 3:14 PM CST | Winter Weather Advisory | TOP | 51 hr |
| Feb 6, 3:27 AM CST | Winter Storm Watch | TOP | 24 hr |
| Feb 7, 3:28 AM CST | Winter Weather Advisory | TOP | 36 hr |
| Feb 14, 3:42 AM CST | Wind Advisory | TOP | 12 hr |
| Feb 19, 3:25 PM CST | Winter Storm Watch | TOP | 20 hr |
| Feb 20, 4:07 AM CST | Winter Storm Warning | TOP | 36 hr |
| Feb 21, 11:44 AM CST | Winter Weather Advisory | TOP | 10 hr |
| Mar 19, 1:57 PM CDT | Winter Weather Advisory | TOP | 14 hr |
| Mar 30, 5:30 AM CDT | Red Flag Warning | TOP | 14 hr |
| Apr 1, 3:42 AM CDT | Wind Advisory | TOP | 12 hr |
| Apr 1, 9:26 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Apr 1, 11:50 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Apr 5, 7:39 PM CDT | Tornado Watch | SPC | 3 hr |
| Apr 13, 3:48 AM CDT | Wind Advisory | TOP | 15 hr |
| Apr 22, 10:00 AM CDT | Areal Flood Warning | TOP | 3 hr |
| Apr 22, 10:02 PM CDT | Flood Watch | TOP | 15 hr |
| Apr 22, 11:17 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Apr 24, 1:29 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Apr 28, 4:08 AM CDT | Wind Advisory | TOP | 15 hr |
| Apr 28, 3:52 PM CDT | Wind Advisory | TOP | 26 hr |
| Apr 29, 4:25 PM CDT | Severe Thunderstorm Warning | TOP | 35 min |
| Apr 29, 4:39 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 29, 7:12 PM CDT | Mesoscale Discussion | SPC | 63 min |
| Apr 29, 9:44 PM CDT | Severe Thunderstorm Warning | TOP | 46 min |
| Apr 29, 10:15 PM CDT | Areal Flood Advisory | TOP | 3 hr |
| Apr 29, 10:23 PM CDT | Severe Thunderstorm Warning | TOP | 52 min |
| Apr 29, 11:04 PM CDT | Mesoscale Discussion | SPC | 26 min |
| Apr 29, 11:12 PM CDT | Severe Thunderstorm Warning | TOP | 48 min |
| Apr 29, 11:46 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 2, 2:15 PM CDT | Mesoscale Discussion | SPC | 90 min |
| May 6, 3:45 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 6, 6:16 PM CDT | Mesoscale Discussion | SPC | 59 min |
| May 6, 6:40 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 6, 10:58 PM CDT | Mesoscale Discussion | SPC | 92 min |
| May 7, 3:51 PM CDT | Frost Advisory | TOP | 15 hr |
| May 10, 3:14 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 10, 3:26 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 12, 2:34 AM CDT | Mesoscale Discussion | SPC | 56 min |
| May 18, 3:48 AM CDT | Dense Fog Advisory | TOP | 5 hr |
| May 22, 3:40 AM CDT | Wind Advisory | TOP | 16 hr |
| May 23, 3:24 PM CDT | Wind Advisory | TOP | 28 hr |
| May 24, 9:11 PM CDT | Mesoscale Discussion | SPC | 64 min |
| May 26, 1:17 AM CDT | Mesoscale Discussion | SPC | 58 min |
| Jun 1, 6:20 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 1, 9:17 PM CDT | Mesoscale Discussion | SPC | 118 min |
| Jun 7, 9:07 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Jun 8, 1:59 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 8, 2:56 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 10, 3:25 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 12, 3:14 PM CDT | Flash Flood Watch | TOP | 43 hr |
| Jun 12, 9:02 PM CDT | Areal Flood Advisory | TOP | 88 min |
| Jun 12, 10:35 PM CDT | Areal Flood Warning | TOP | 8 hr |
| Jun 13, 3:38 PM CDT | Severe Thunderstorm Watch | SPC | 3 hr |
| Jun 13, 6:54 PM CDT | Areal Flood Advisory | TOP | 6 hr |
| Jun 13, 9:14 PM CDT | Severe Thunderstorm Warning | TOP | 46 min |
| Jun 13, 10:11 PM CDT | Flash Flood Warning | TOP | 4 hr |
| Jun 17, 4:32 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jun 17, 5:32 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 17, 7:55 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Jun 19, 8:02 AM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 19, 5:05 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 19, 8:07 PM CDT | Severe Thunderstorm Warning | TOP | 38 min |
| Jun 19, 8:45 PM CDT | Severe Thunderstorm Warning | TOP | 45 min |
| Jun 19, 9:22 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 19, 11:13 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 20, 3:07 PM CDT | Tornado Watch | SPC | 8 hr |
| Jun 20, 5:31 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 20, 6:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jun 20, 7:35 PM CDT | Severe Thunderstorm Warning | TOP | 55 min |
| Jun 20, 8:25 PM CDT | Severe Thunderstorm Warning | TOP | 65 min |
| Jun 21, 3:45 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 21, 1:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 21, 4:10 PM CDT | Mesoscale Discussion | SPC | 35 min |
| Jun 21, 5:56 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 4, 4:14 AM CDT | Flood Watch | TOP | 48 hr |
| Jul 4, 11:35 AM CDT | Areal Flood Warning | TOP | 6 hr |
| Jul 4, 5:34 PM CDT | Areal Flood Warning | TOP | 116 min |
| Jul 4, 6:18 PM CDT | River Flood Warning | TOP | 12 hr |
| Jul 5, 11:35 AM CDT | River Flood Warning | TOP | 20 hr |
| Jul 5, 9:34 PM CDT | River Flood Warning | TOP | 33 hr |
| Jul 13, 1:25 PM CDT | Heat Advisory | TOP | 32 hr |
| Jul 14, 2:30 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jul 14, 4:52 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 16, 3:26 PM CDT | Heat Advisory | TOP | 52 hr |
| Jul 17, 12:02 AM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 19, 3:55 AM CDT | Heat Advisory | TOP | 38 hr |
| Jul 20, 3:32 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 20, 3:50 PM CDT | Severe Thunderstorm Warning | TOP | 40 min |
| Jul 20, 3:58 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 20, 5:45 PM CDT | Flash Flood Warning | TOP | 3 hr |
| Jul 20, 6:10 PM CDT | Severe Thunderstorm Warning | TOP | 35 min |
| Jul 21, 3:53 AM CDT | Heat Advisory | TOP | 63 hr |
| Jul 21, 6:07 AM CDT | Flash Flood Warning | TOP | 4 hr |
| Jul 21, 9:16 AM CDT | Flash Flood Warning | TOP | 3 hr |
| Jul 21, 9:26 AM CDT | River Flood Warning | TOP | 5 hr |
| Jul 30, 3:58 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Aug 1, 3:37 PM CDT | Heat Advisory | TOP | 52 hr |
| Aug 7, 3:54 AM CDT | Heat Advisory | TOP | 48 hr |
| Aug 7, 3:13 PM CDT | Excessive Heat Warning | TOP | 7 days |
| Aug 13, 3:08 PM CDT | Severe Thunderstorm Warning | TOP | 37 min |
| Aug 13, 3:11 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Aug 13, 3:28 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 14, 10:28 PM CDT | Mesoscale Discussion | SPC | 62 min |
| Aug 20, 4:26 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 20, 5:29 PM CDT | Severe Thunderstorm Warning | TOP | 46 min |
| Aug 31, 4:59 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Aug 31, 5:17 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 31, 7:29 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Sep 2, 1:51 PM CDT | Special Weather Statement | TOP | 24 min |
| Sep 2, 2:18 PM CDT | Special Weather Statement | TOP | 27 min |
| Sep 13, 1:38 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Sep 13, 2:38 PM CDT | Tornado Watch | SPC | 7 hr |
| Sep 13, 7:40 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Sep 13, 9:58 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Sep 13, 11:12 PM CDT | Special Weather Statement | TOP | 48 min |
| Sep 13, 11:30 PM CDT | Severe Thunderstorm Warning | TOP | 30 min |
| Sep 13, 11:45 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Sep 13, 11:59 PM CDT | Severe Thunderstorm Warning | TOP | 17 min |
| Sep 14, 2:10 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 14, 10:21 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Sep 15, 1:39 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 15, 3:39 AM CDT | Special Weather Statement | TOP | 51 min |
| Sep 15, 4:29 AM CDT | Special Weather Statement | TOP | 46 min |
| Sep 15, 5:06 AM CDT | Flash Flood Warning | TOP | 6 hr |
| Sep 15, 10:58 AM CDT | Areal Flood Warning | TOP | 4 hr |
| Sep 18, 1:15 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 18, 2:21 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 18, 6:09 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Sep 20, 3:33 AM CDT | Wind Advisory | TOP | 15 hr |
| Sep 21, 5:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Oct 25, 3:01 PM CDT | Wind Advisory | TOP | 7 hr |
| Oct 27, 3:25 AM CDT | Red Flag Warning | TOP | 16 hr |
| Oct 27, 9:44 PM CDT | Freeze Warning | TOP | 10 hr |
| Oct 28, 4:07 PM CDT | Fire Weather Watch | TOP | 12 hr |
| Oct 29, 3:54 AM CDT | Red Flag Warning | TOP | 15 hr |
| Nov 5, 9:02 PM CDT | Fire Weather Watch | TOP | 18 hr |
| Nov 6, 3:07 PM CDT | Red Flag Warning | TOP | 28 hr |
| Nov 21, 4:07 AM CST | Dense Fog Advisory | TOP | 5 hr |
| Nov 27, 3:22 PM CST | Wind Advisory | TOP | 27 hr |
| Dec 10, 6:51 PM CST | Wind Advisory | TOP | 33 hr |
| Dec 23, 11:04 AM CST | Winter Weather Advisory | TOP | 25 hr |
| Dec 30, 11:08 AM CST | Winter Weather Advisory | TOP | 25 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 archive20092011
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.