Alert archive / Nebraska / Jefferson County
Weather alerts in Jefferson County, Nebraska, 2022
135 weather alerts in 2022, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Jefferson County and its neighbors
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Alerts
- 135
- Warnings
- 39
- Watches
- 23
- Advisories
- 39
- Busiest month
- April32 alerts
- Busiest day
- April 29, 20225 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 3 tornado warnings covering Jefferson County in 2022 had a tornado report inside them.
Jefferson County, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 3 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 13 | 9 | 31% | 7 | 71% | 10 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2022
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Omaha, NE: tornado warnings | 37 | 7 | 81% | 18 | 56% | 15 min |
| NWS Omaha, NE: severe thunderstorm warnings | 293 | 159 | 46% | 463 | 84% | 21 min |
| NWS Omaha, NE: flash flood warnings | 8 | 3 | 63% | 8 | 75% | 23 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 1, 4:26 AM CST | Wind Chill Advisory | OAX | 29 hr |
| Jan 1, 10:31 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Jan 4, 3:14 AM CST | Wind Advisory | OAX | 27 hr |
| Jan 4, 2:42 PM CST | Wind Chill Advisory | OAX | 45 hr |
| Jan 29, 2:55 AM CST | Red Flag Warning | OAX | 15 hr |
| Feb 2, 2:56 AM CST | Wind Chill Advisory | OAX | 31 hr |
| Feb 8, 4:15 AM CST | Red Flag Warning | OAX | 14 hr |
| Feb 15, 3:14 AM CST | Red Flag Warning | OAX | 15 hr |
| Feb 22, 2:29 AM CST | Wind Chill Advisory | OAX | 34 hr |
| Mar 8, 2:54 PM CST | Winter Storm Watch | OAX | 12 hr |
| Mar 9, 2:50 AM CST | Winter Storm Warning | OAX | 25 hr |
| Mar 9, 2:50 AM CST | Winter Weather Advisory | OAX | 36 hr |
| Mar 9, 3:42 PM CST | Mesoscale Discussion | SPC | 6 hr |
| Mar 17, 2:46 PM CDT | Wind Advisory | OAX | 13 hr |
| Mar 19, 2:29 PM CDT | Red Flag Warning | OAX | 31 hr |
| Mar 21, 3:21 PM CDT | Winter Weather Advisory | OAX | 21 hr |
| Mar 21, 3:26 PM CDT | Wind Advisory | OAX | 31 hr |
| Mar 24, 3:30 AM CDT | Fire Weather Watch | OAX | 12 hr |
| Mar 24, 3:11 PM CDT | Red Flag Warning | OAX | 29 hr |
| Mar 29, 3:17 AM CDT | Red Flag Warning | OAX | 16 hr |
| Mar 29, 3:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 5, 3:05 PM CDT | Wind Advisory | OAX | 28 hr |
| Apr 6, 3:11 AM CDT | Wind Advisory | OAX | 42 hr |
| Apr 6, 3:10 PM CDT | High Wind Warning | OAX | 30 hr |
| Apr 7, 3:28 AM CDT | Fire Weather Watch | OAX | 11 hr |
| Apr 7, 10:29 AM CDT | Blowing Dust Advisory | OAX | 8 hr |
| Apr 7, 2:38 PM CDT | Red Flag Warning | OAX | 29 hr |
| Apr 8, 3:23 PM CDT | Red Flag Warning | OAX | 29 hr |
| Apr 11, 4:21 AM CDT | Fire Weather Watch | OAX | 24 hr |
| Apr 11, 3:55 PM CDT | Wind Advisory | OAX | 37 hr |
| Apr 12, 3:56 AM CDT | Fire Weather Watch | OAX | 24 hr |
| Apr 12, 3:56 AM CDT | Red Flag Warning | OAX | 17 hr |
| Apr 12, 6:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 12, 6:46 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 12, 7:16 PM CDT | Severe Thunderstorm Warning | OAX | 44 min |
| Apr 12, 8:15 PM CDT | Severe Thunderstorm Warning | OAX | 45 min |
| Apr 13, 3:33 AM CDT | Fire Weather Watch | OAX | 24 hr |
| Apr 13, 3:33 AM CDT | Red Flag Warning | OAX | 17 hr |
| Apr 14, 3:17 AM CDT | Red Flag Warning | OAX | 18 hr |
| Apr 20, 11:08 PM CDT | Dense Fog Advisory | OAX | 12 hr |
| Apr 21, 3:33 PM CDT | High Wind Watch | OAX | 19 hr |
| Apr 21, 10:13 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 22, 3:32 AM CDT | Wind Advisory | OAX | 14 hr |
| Apr 22, 3:29 PM CDT | Wind Advisory | OAX | 31 hr |
| Apr 23, 2:23 AM CDT | Red Flag Warning | OAX | 18 hr |
| Apr 25, 3:27 AM CDT | Fire Weather Watch | OAX | 11 hr |
| Apr 25, 2:20 PM CDT | Red Flag Warning | OAX | 30 hr |
| Apr 29, 3:34 PM CDT | Tornado Watch | SPC | 7 hr |
| Apr 29, 3:44 PM CDT | Wind Advisory | OAX | 30 hr |
| Apr 29, 6:09 PM CDT | Severe Thunderstorm Warning | OAX | 66 min |
| Apr 29, 6:46 PM CDT | Areal Flood Advisory | OAX | 4 hr |
| Apr 29, 6:57 PM CDT | Tornado Warning | OAX | 33 min |
| Apr 29, 7:31 PM CDT | Severe Thunderstorm Warning | OAX | 44 min |
| May 12, 2:14 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| May 12, 5:07 PM CDT | Mesoscale Discussion | SPC | 53 min |
| May 12, 7:01 PM CDT | Severe Thunderstorm Warning | OAX | 44 min |
| May 15, 3:38 AM CDT | Mesoscale Discussion | SPC | 97 min |
| May 17, 6:12 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 29, 5:49 PM CDT | Mesoscale Discussion | SPC | 86 min |
| May 30, 3:35 AM CDT | Wind Advisory | OAX | 19 hr |
| Jun 4, 7:19 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 6, 3:46 PM CDT | Mesoscale Discussion | SPC | 119 min |
| Jun 6, 11:15 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Jun 7, 5:44 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Jun 7, 6:36 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 7, 8:18 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 7, 9:36 PM CDT | Severe Thunderstorm Warning | OAX | 39 min |
| Jun 7, 10:39 PM CDT | Special Weather Statement | OAX | 21 min |
| Jun 11, 3:37 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 11, 4:03 PM CDT | Severe Thunderstorm Warning | OAX | 42 min |
| Jun 11, 4:32 PM CDT | Tornado Warning | OAX | 43 min |
| Jun 11, 5:13 PM CDT | Tornado Warning | OAX | 32 min |
| Jun 11, 5:14 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 12, 7:08 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 12, 7:10 AM CDT | Severe Thunderstorm Warning | OAX | 50 min |
| Jun 12, 7:55 AM CDT | Severe Thunderstorm Warning | OAX | 50 min |
| Jun 12, 2:46 PM CDT | Heat Advisory | OAX | 52 hr |
| Jun 14, 5:32 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 14, 7:33 PM CDT | Severe Thunderstorm Warning | OAX | 42 min |
| Jun 14, 9:23 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 16, 2:25 PM CDT | Excessive Heat Watch | OAX | 37 hr |
| Jun 16, 10:13 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 17, 4:08 PM CDT | Heat Advisory | OAX | 3 days |
| Jun 24, 11:19 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 30, 6:29 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 3, 2:59 PM CDT | Heat Advisory | OAX | 53 hr |
| Jul 3, 9:00 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 6, 2:57 PM CDT | Flood Watch | OAX | 18 hr |
| Jul 7, 2:32 AM CDT | Special Weather Statement | OAX | 43 min |
| Jul 7, 3:03 AM CDT | Areal Flood Advisory | OAX | 78 min |
| Jul 7, 4:21 AM CDT | Flash Flood Warning | OAX | 4 hr |
| Jul 7, 7:52 AM CDT | Areal Flood Advisory | OAX | 2 hr |
| Jul 7, 7:52 PM CDT | Mesoscale Discussion | SPC | 113 min |
| Jul 7, 10:26 PM CDT | Special Weather Statement | OAX | 19 min |
| Jul 14, 2:57 PM CDT | Heat Advisory | OAX | 29 hr |
| Jul 16, 6:37 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 16, 7:40 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 16, 10:39 PM CDT | Special Weather Statement | OAX | 36 min |
| Jul 16, 10:49 PM CDT | Special Weather Statement | OAX | 26 min |
| Jul 16, 11:07 PM CDT | Special Weather Statement | OAX | 23 min |
| Jul 16, 11:26 PM CDT | Special Weather Statement | OAX | 19 min |
| Jul 22, 3:14 AM CDT | Heat Advisory | OAX | 41 hr |
| Jul 26, 8:03 PM CDT | Severe Thunderstorm Warning | OAX | 42 min |
| Aug 1, 2:44 AM CDT | Heat Advisory | OAX | 41 hr |
| Aug 4, 2:56 PM CDT | Heat Advisory | OAX | 29 hr |
| Aug 5, 3:28 AM CDT | Heat Advisory | OAX | 42 hr |
| Aug 19, 3:06 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Aug 19, 4:48 PM CDT | Special Weather Statement | OAX | 42 min |
| Sep 5, 5:58 AM CDT | Dense Fog Advisory | OAX | 4 hr |
| Sep 17, 5:15 AM CDT | Special Weather Statement | OAX | 30 min |
| Sep 17, 5:11 PM CDT | Mesoscale Discussion | SPC | 4 hr |
| Sep 17, 5:46 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Oct 7, 3:24 AM CDT | Freeze Warning | OAX | 30 hr |
| Oct 11, 3:47 PM CDT | Fire Weather Watch | OAX | 19 hr |
| Oct 11, 3:47 PM CDT | Fire Weather Watch | OAX | 23 hr |
| Oct 11, 10:48 PM CDT | Severe Thunderstorm Warning | OAX | 42 min |
| Oct 11, 11:24 PM CDT | Severe Thunderstorm Warning | OAX | 51 min |
| Oct 12, 3:36 AM CDT | Red Flag Warning | OAX | 15 hr |
| Oct 12, 2:48 PM CDT | Red Flag Warning | OAX | 28 hr |
| Oct 13, 2:45 PM CDT | Red Flag Warning | OAX | 28 hr |
| Oct 22, 10:20 AM CDT | Red Flag Warning | OAX | 34 hr |
| Oct 22, 3:05 PM CDT | Wind Advisory | OAX | 35 hr |
| Nov 4, 12:50 AM CDT | Special Weather Statement | OAX | 40 min |
| Nov 28, 2:43 AM CST | Winter Weather Advisory | OAX | 39 hr |
| Dec 1, 3:41 PM CST | Wind Advisory | OAX | 32 hr |
| Dec 7, 3:47 PM CST | Winter Weather Advisory | OAX | 32 hr |
| Dec 10, 12:52 AM CST | Dense Fog Advisory | OAX | 8 hr |
| Dec 19, 3:56 AM CST | Winter Storm Watch | OAX | 34 hr |
| Dec 19, 7:25 AM CST | Winter Weather Advisory | OAX | 5 hr |
| Dec 19, 12:15 PM CST | Winter Weather Advisory | OAX | 6 hr |
| Dec 19, 1:44 PM CST | Wind Chill Warning | OAX | 5 days |
| Dec 20, 1:58 PM CST | Winter Storm Warning | OAX | 40 hr |
| Dec 20, 1:58 PM CST | Winter Weather Advisory | OAX | 3 days |
| Dec 21, 11:48 PM CST | Mesoscale Discussion | SPC | 3 hr |
| Dec 23, 1:54 PM CST | Wind Chill Advisory | OAX | 21 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 archive20212023
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.