Alert archive / Nebraska / Butler County
Weather alerts in Butler County, Nebraska, 2017
121 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Butler County and its neighbors
Each county as a circle sized by its count in 2017. Tap one for its archive.
- Alerts
- 121
- Warnings
- 38
- Watches
- 18
- Advisories
- 28
- Busiest month
- June34 alerts
- Busiest day
- June 14, 201712 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Butler County, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 19 | 11 | 42% | 5 | 100% | 16 min |
| Flash flood warnings | 1 | 1 | 0% | 1 | 100% | 127 min |
Each office's whole area, 2017
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Omaha, NE: tornado warnings | 25 | 10 | 60% | 27 | 63% | 14 min |
| NWS Omaha, NE: severe thunderstorm warnings | 258 | 140 | 46% | 412 | 87% | 17 min |
| NWS Omaha, NE: flash flood warnings | 8 | 5 | 38% | 13 | 92% | 69 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, 3:05 PM CST | Wind Chill Advisory | OAX | 19 hr |
| Jan 10, 3:46 AM CST | Winter Weather Advisory | OAX | 8 hr |
| Jan 12, 4:00 PM CST | Winter Storm Watch | OAX | 47 hr |
| Jan 14, 2:37 PM CST | Ice Storm Warning | OAX | 52 hr |
| Jan 16, 10:21 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Jan 16, 3:18 PM CST | Winter Weather Advisory | OAX | 8 hr |
| Jan 19, 3:39 PM CST | Dense Fog Advisory | OAX | 17 hr |
| Jan 20, 6:27 PM CST | Dense Fog Advisory | OAX | 17 hr |
| Jan 23, 3:30 PM CST | Winter Weather Advisory | OAX | 49 hr |
| Feb 7, 11:56 AM CST | Winter Weather Advisory | OAX | 23 hr |
| Feb 20, 3:31 AM CST | Fire Weather Watch | OAX | 23 hr |
| Feb 21, 2:49 AM CST | Red Flag Warning | OAX | 15 hr |
| Feb 23, 4:20 AM CST | Winter Weather Advisory | OAX | 38 hr |
| Feb 23, 6:05 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Mar 4, 3:54 PM CST | Fire Weather Watch | OAX | 24 hr |
| Mar 5, 3:40 PM CST | Red Flag Warning | OAX | 28 hr |
| Mar 5, 3:44 PM CST | Wind Advisory | OAX | 28 hr |
| Mar 6, 2:46 AM CST | Fire Weather Watch | OAX | 14 hr |
| Mar 6, 4:32 PM CST | Red Flag Warning | OAX | 25 hr |
| Mar 7, 3:17 AM CST | Wind Advisory | OAX | 12 hr |
| Apr 3, 1:32 AM CDT | Dense Fog Advisory | OAX | 9 hr |
| Apr 9, 8:26 PM CDT | Special Weather Statement | OAX | 34 min |
| Apr 10, 3:28 PM CDT | Freeze Warning | OAX | 17 hr |
| Apr 14, 9:17 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Apr 15, 5:05 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Apr 19, 2:29 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 19, 3:23 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 26, 3:54 AM CDT | Frost Advisory | OAX | 29 hr |
| Apr 26, 8:33 AM CDT | Freeze Warning | OAX | 24 hr |
| May 10, 1:29 AM CDT | Mesoscale Discussion | SPC | 61 min |
| May 15, 7:41 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| May 15, 10:12 PM CDT | Special Weather Statement | OAX | 18 min |
| May 15, 11:47 PM CDT | Special Weather Statement | OAX | 43 min |
| May 16, 3:58 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 16, 4:52 PM CDT | Severe Thunderstorm Warning | OAX | 38 min |
| May 16, 4:57 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 16, 7:31 PM CDT | Mesoscale Discussion | SPC | 59 min |
| May 16, 9:43 PM CDT | Mesoscale Discussion | SPC | 62 min |
| May 17, 1:58 AM CDT | Severe Thunderstorm Warning | OAX | 32 min |
| May 17, 2:27 AM CDT | Severe Thunderstorm Warning | OAX | 48 min |
| May 18, 2:02 PM CDT | Flash Flood Watch | OAX | 35 hr |
| May 19, 11:36 PM CDT | Areal Flood Warning | OAX | 6 hr |
| May 20, 7:02 PM CDT | Areal Flood Warning | OAX | 53 hr |
| Jun 12, 8:49 AM CDT | Special Weather Statement | OAX | 41 min |
| Jun 12, 8:56 AM CDT | Severe Thunderstorm Warning | OAX | 49 min |
| Jun 13, 3:46 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 13, 5:25 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 13, 7:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 13, 8:05 PM CDT | Severe Thunderstorm Warning | OAX | 25 min |
| Jun 13, 8:21 PM CDT | Severe Thunderstorm Warning | OAX | 24 min |
| Jun 13, 8:29 PM CDT | Severe Thunderstorm Warning | OAX | 31 min |
| Jun 13, 8:42 PM CDT | Severe Thunderstorm Warning | OAX | 33 min |
| Jun 13, 9:07 PM CDT | Severe Thunderstorm Warning | OAX | 23 min |
| Jun 13, 9:27 PM CDT | Severe Thunderstorm Warning | OAX | 33 min |
| Jun 13, 9:36 PM CDT | Mesoscale Discussion | SPC | 54 min |
| Jun 13, 10:50 PM CDT | Special Weather Statement | OAX | 25 min |
| Jun 13, 10:57 PM CDT | Severe Thunderstorm Warning | OAX | 33 min |
| Jun 13, 11:14 PM CDT | Severe Thunderstorm Warning | OAX | 31 min |
| Jun 14, 5:17 AM CDT | Areal Flood Advisory | OAX | 3 hr |
| Jun 15, 5:11 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Jun 16, 1:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jun 16, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 16, 6:16 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 16, 6:23 PM CDT | Severe Thunderstorm Warning | OAX | 52 min |
| Jun 16, 6:47 PM CDT | Severe Thunderstorm Warning | OAX | 28 min |
| Jun 16, 7:07 PM CDT | Severe Thunderstorm Warning | OAX | 38 min |
| Jun 16, 7:14 PM CDT | Severe Thunderstorm Warning | OAX | 16 min |
| Jun 16, 7:43 PM CDT | Severe Thunderstorm Warning | OAX | 47 min |
| Jun 16, 8:23 PM CDT | Severe Thunderstorm Warning | OAX | 52 min |
| Jun 27, 8:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 27, 8:56 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 28, 12:17 AM CDT | Special Weather Statement | OAX | 28 min |
| Jun 28, 12:35 AM CDT | Severe Thunderstorm Warning | OAX | 25 min |
| Jun 29, 3:42 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 29, 6:08 PM CDT | Mesoscale Discussion | SPC | 67 min |
| Jun 29, 8:28 PM CDT | Special Weather Statement | OAX | 32 min |
| Jun 30, 5:51 PM CDT | Special Weather Statement | OAX | 24 min |
| Jul 17, 3:41 PM CDT | Excessive Heat Watch | OAX | 24 hr |
| Jul 18, 3:57 PM CDT | Excessive Heat Warning | OAX | 4 days |
| Jul 26, 12:32 PM CDT | Areal Flood Advisory | OAX | 3 hr |
| Aug 1, 6:53 PM CDT | Special Weather Statement | OAX | 22 min |
| Aug 15, 7:17 PM CDT | Special Weather Statement | OAX | 28 min |
| Aug 15, 7:49 PM CDT | Special Weather Statement | OAX | 41 min |
| Aug 16, 5:31 AM CDT | River Flood Warning | OAX | 3 days |
| Aug 16, 6:38 AM CDT | Flash Flood Warning | OAX | 6 hr |
| Aug 16, 12:38 PM CDT | Areal Flood Warning | OAX | 3 hr |
| Aug 16, 3:24 PM CDT | Areal Flood Warning | OAX | 24 hr |
| Aug 16, 7:52 PM CDT | Areal Flood Warning | OAX | 6 hr |
| Aug 17, 3:12 PM CDT | Areal Flood Advisory | OAX | 3 hr |
| Aug 17, 7:47 PM CDT | Areal Flood Warning | OAX | 36 hr |
| Aug 18, 9:07 AM CDT | Areal Flood Warning | OAX | 6 hr |
| Aug 19, 5:45 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 19, 11:35 PM CDT | Flash Flood Watch | OAX | 7 hr |
| Aug 20, 4:14 AM CDT | Special Weather Statement | OAX | 31 min |
| Aug 20, 7:42 AM CDT | River Flood Warning | OAX | 41 hr |
| Aug 21, 6:35 PM CDT | River Flood Warning | OAX | 36 hr |
| Aug 21, 8:09 PM CDT | Special Weather Statement | OAX | 66 min |
| Aug 21, 9:31 PM CDT | Special Weather Statement | OAX | 59 min |
| Aug 27, 3:58 AM CDT | Special Weather Statement | OAX | 62 min |
| Sep 3, 5:44 AM CDT | Dense Fog Advisory | OAX | 4 hr |
| Sep 15, 5:48 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 1, 10:54 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 2, 6:40 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Oct 2, 8:00 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Oct 4, 3:22 PM CDT | Flood Watch | OAX | 60 hr |
| Oct 6, 3:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Oct 6, 4:46 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 10, 1:24 PM CDT | Freeze Warning | OAX | 21 hr |
| Oct 22, 3:08 PM CDT | Wind Advisory | OAX | 28 hr |
| Oct 24, 3:17 AM CDT | Wind Advisory | OAX | 13 hr |
| Oct 25, 3:22 PM CDT | Wind Advisory | OAX | 45 hr |
| Nov 13, 2:39 AM CST | Dense Fog Advisory | OAX | 7 hr |
| Nov 13, 5:10 PM CST | Dense Fog Advisory | OAX | 16 hr |
| Dec 3, 3:16 PM CST | Wind Advisory | OAX | 33 hr |
| Dec 11, 2:45 AM CST | Wind Advisory | OAX | 15 hr |
| Dec 21, 4:03 AM CST | Winter Weather Advisory | OAX | 19 hr |
| Dec 23, 3:40 AM CST | Winter Weather Advisory | OAX | 26 hr |
| Dec 26, 2:05 PM CST | Wind Chill Advisory | OAX | 20 hr |
| Dec 29, 2:50 PM CST | Wind Chill Watch | OAX | 13 hr |
| Dec 29, 2:50 PM CST | Wind Chill Advisory | OAX | 21 hr |
| Dec 30, 3:55 AM CST | Wind Chill Advisory | OAX | 42 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 archive20162018
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.