Alert archive / Nebraska / Banner County
Weather alerts in Banner County, Nebraska, 2019
205 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Banner County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 205
- Warnings
- 43
- Watches
- 36
- Advisories
- 29
- Busiest month
- August47 alerts
- Busiest day
- August 16, 20199 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 2 tornado warnings covering Banner County in 2019 had a tornado report inside them.
Banner County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 24 | 15 | 38% | 2 | 100% | 19 min |
| Flash flood warnings | 1 | 1 | 0% | 1 | 100% | 95 min |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Cheyenne, WY: tornado warnings | 36 | 15 | 58% | 34 | 71% | 11 min |
| NWS Cheyenne, WY: severe thunderstorm warnings | 418 | 166 | 60% | 360 | 90% | 22 min |
| NWS Cheyenne, WY: flash flood warnings | 36 | 21 | 42% | 36 | 94% | 67 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, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 6, 4:08 AM MST | High Wind Warning | CYS | 52 hr |
| Jan 20, 3:12 AM MST | Winter Storm Watch | CYS | 23 hr |
| Jan 20, 1:13 PM MST | Winter Storm Warning | CYS | 46 hr |
| Jan 20, 1:13 PM MST | Winter Weather Advisory | CYS | 46 hr |
| Jan 25, 11:45 AM MST | High Wind Warning | CYS | 63 hr |
| Feb 5, 1:38 AM MST | Winter Weather Advisory | CYS | 47 hr |
| Feb 6, 1:52 AM MST | Wind Chill Watch | CYS | 12 hr |
| Feb 6, 1:58 PM MST | Wind Chill Warning | CYS | 21 hr |
| Feb 6, 1:58 PM MST | Wind Chill Advisory | CYS | 43 hr |
| Feb 16, 6:08 PM MST | Snow Squall Warning | CYS | 52 min |
| Feb 21, 2:22 PM MST | Winter Weather Advisory | CYS | 40 hr |
| Feb 28, 1:48 AM MST | Winter Storm Watch | CYS | 36 hr |
| Feb 28, 1:48 AM MST | Winter Storm Warning | CYS | 3 days |
| Mar 2, 1:08 PM MST | Wind Chill Advisory | CYS | 45 hr |
| Mar 3, 10:25 AM MST | Wind Chill Warning | CYS | 24 hr |
| Mar 4, 1:55 PM MST | Wind Chill Advisory | CYS | 16 hr |
| Mar 6, 3:47 AM MST | Winter Weather Advisory | CYS | 25 hr |
| Mar 7, 2:33 PM MST | Winter Weather Advisory | CYS | 44 hr |
| Mar 7, 11:18 PM MST | Freezing Fog Advisory | CYS | 9 hr |
| Mar 11, 3:06 AM MDT | Winter Storm Watch | CYS | 12 hr |
| Mar 11, 3:25 PM MDT | Blizzard Warning | CYS | 3 days |
| Mar 13, 10:27 AM MDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 13, 1:37 PM MDT | Mesoscale Discussion | SPC | 4 hr |
| Mar 13, 5:26 PM MDT | Mesoscale Discussion | SPC | 6 hr |
| Mar 21, 2:47 AM MDT | Flood Watch | CYS | 60 hr |
| Mar 22, 9:27 AM MDT | Areal Flood Advisory | CYS | 24 hr |
| Mar 23, 8:52 AM MDT | Areal Flood Advisory | CYS | 24 hr |
| Mar 28, 3:59 AM MDT | Winter Weather Advisory | CYS | 50 hr |
| Apr 8, 2:55 AM MDT | Winter Storm Watch | CYS | 34 hr |
| Apr 9, 3:27 AM MDT | Blizzard Warning | CYS | 58 hr |
| Apr 11, 1:18 PM MDT | Winter Weather Advisory | CYS | 6 hr |
| Apr 24, 8:11 PM MDT | Special Weather Statement | CYS | 64 min |
| Apr 26, 2:57 PM MDT | Severe Thunderstorm Warning | CYS | 48 min |
| Apr 27, 2:31 PM MDT | Winter Storm Watch | CYS | 37 hr |
| Apr 29, 3:35 AM MDT | Winter Weather Advisory | CYS | 53 hr |
| May 7, 7:00 PM MDT | Dense Fog Advisory | CYS | 14 hr |
| May 16, 1:22 PM MDT | Mesoscale Discussion | SPC | 113 min |
| May 16, 3:33 PM MDT | Special Weather Statement | CYS | 27 min |
| May 16, 7:19 PM MDT | Special Weather Statement | CYS | 41 min |
| May 16, 7:39 PM MDT | Special Weather Statement | CYS | 51 min |
| May 17, 12:14 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 17, 12:54 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 17, 4:07 PM MDT | Mesoscale Discussion | SPC | 113 min |
| May 20, 3:29 AM MDT | Winter Weather Advisory | CYS | 48 hr |
| May 24, 2:00 PM MDT | Flood Watch | CYS | 5 days |
| May 26, 2:43 AM MDT | Severe Thunderstorm Warning | CYS | 47 min |
| May 26, 3:25 AM MDT | Severe Thunderstorm Warning | CYS | 50 min |
| May 26, 1:47 PM MDT | Flash Flood Watch | CYS | 52 hr |
| May 26, 5:03 PM MDT | Mesoscale Discussion | SPC | 57 min |
| May 27, 12:56 PM MDT | Tornado Watch | SPC | 8 hr |
| May 27, 2:43 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 27, 4:55 PM MDT | Special Weather Statement | CYS | 50 min |
| May 27, 5:43 PM MDT | Special Weather Statement | CYS | 47 min |
| May 28, 1:19 PM MDT | Areal Flood Advisory | CYS | 3 hr |
| Jun 2, 3:59 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 2, 4:22 PM MDT | Special Weather Statement | CYS | 38 min |
| Jun 2, 5:02 PM MDT | Special Weather Statement | CYS | 43 min |
| Jun 2, 5:46 PM MDT | Mesoscale Discussion | SPC | 89 min |
| Jun 2, 6:26 PM MDT | Areal Flood Advisory | CYS | 3 hr |
| Jun 2, 6:50 PM MDT | Severe Thunderstorm Warning | CYS | 25 min |
| Jun 3, 3:02 AM MDT | Flash Flood Watch | CYS | 17 hr |
| Jun 3, 1:31 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Jun 4, 12:59 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 7, 2:54 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 7, 5:09 PM MDT | Special Weather Statement | CYS | 36 min |
| Jun 13, 5:58 PM MDT | Special Weather Statement | CYS | 17 min |
| Jun 14, 5:25 PM MDT | Special Weather Statement | CYS | 50 min |
| Jun 16, 1:38 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 12:04 PM MDT | Mesoscale Discussion | SPC | 86 min |
| Jun 17, 12:23 PM MDT | Special Weather Statement | CYS | 37 min |
| Jun 17, 5:24 PM MDT | Severe Thunderstorm Warning | CYS | 51 min |
| Jun 17, 5:37 PM MDT | Severe Thunderstorm Warning | CYS | 38 min |
| Jun 17, 5:55 PM MDT | Tornado Warning | CYS | 35 min |
| Jun 17, 6:12 PM MDT | Severe Thunderstorm Warning | CYS | 48 min |
| Jun 17, 6:44 PM MDT | Severe Thunderstorm Warning | CYS | 46 min |
| Jun 20, 2:51 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Jun 20, 4:04 PM MDT | Tornado Watch | SPC | 6 hr |
| Jun 22, 5:56 PM MDT | Special Weather Statement | CYS | 49 min |
| Jun 26, 2:36 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 4:37 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 26, 4:54 PM MDT | Special Weather Statement | CYS | 51 min |
| Jun 29, 3:19 PM MDT | Special Weather Statement | CYS | 41 min |
| Jun 29, 4:02 PM MDT | Special Weather Statement | CYS | 43 min |
| Jun 29, 4:07 PM MDT | Special Weather Statement | CYS | 38 min |
| Jun 30, 8:09 PM MDT | Special Weather Statement | CYS | 51 min |
| Jun 30, 9:13 PM MDT | Special Weather Statement | CYS | 47 min |
| Jun 30, 9:39 PM MDT | Severe Thunderstorm Warning | CYS | 36 min |
| Jun 30, 10:06 PM MDT | Severe Thunderstorm Warning | CYS | 54 min |
| Jul 1, 9:14 PM MDT | Special Weather Statement | CYS | 31 min |
| Jul 1, 9:44 PM MDT | Special Weather Statement | CYS | 46 min |
| Jul 2, 7:29 PM MDT | Special Weather Statement | CYS | 31 min |
| Jul 4, 3:12 AM MDT | Flash Flood Watch | CYS | 21 hr |
| Jul 4, 1:56 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 4, 2:37 PM MDT | Tornado Watch | SPC | 9 hr |
| Jul 4, 4:53 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 12:44 PM MDT | Mesoscale Discussion | SPC | 61 min |
| Jul 5, 1:15 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 5, 4:01 PM MDT | Special Weather Statement | CYS | 29 min |
| Jul 5, 5:19 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Jul 5, 7:58 PM MDT | Severe Thunderstorm Warning | CYS | 47 min |
| Jul 5, 8:48 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Jul 6, 12:25 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Jul 6, 12:42 PM MDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jul 6, 4:55 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Jul 6, 8:06 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Jul 6, 8:28 PM MDT | Severe Thunderstorm Warning | CYS | 62 min |
| Jul 6, 9:23 PM MDT | Severe Thunderstorm Warning | CYS | 52 min |
| Jul 6, 9:28 PM MDT | Severe Thunderstorm Warning | CYS | 32 min |
| Jul 6, 9:58 PM MDT | Severe Thunderstorm Warning | CYS | 47 min |
| Jul 6, 10:10 PM MDT | Severe Thunderstorm Warning | CYS | 50 min |
| Jul 7, 2:14 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 7, 8:10 PM MDT | Special Weather Statement | CYS | 50 min |
| Jul 7, 8:18 PM MDT | Special Weather Statement | CYS | 42 min |
| Jul 8, 3:24 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 8, 4:13 PM MDT | Special Weather Statement | CYS | 47 min |
| Jul 12, 2:26 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Jul 12, 6:15 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 15, 2:20 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 15, 2:54 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 15, 5:42 PM MDT | Mesoscale Discussion | SPC | 93 min |
| Jul 16, 4:58 PM MDT | Severe Thunderstorm Warning | CYS | 32 min |
| Jul 26, 1:30 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 27, 1:50 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 27, 5:34 PM MDT | Special Weather Statement | CYS | 41 min |
| Jul 29, 2:31 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Jul 31, 12:50 PM MDT | Flash Flood Watch | CYS | 32 hr |
| Aug 1, 1:25 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Aug 1, 1:55 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 1, 2:00 PM MDT | Special Weather Statement | CYS | 45 min |
| Aug 1, 2:14 PM MDT | Severe Thunderstorm Warning | CYS | 46 min |
| Aug 1, 2:40 PM MDT | Flash Flood Warning | CYS | 3 hr |
| Aug 1, 2:59 PM MDT | Special Weather Statement | CYS | 46 min |
| Aug 1, 4:52 PM MDT | Areal Flood Advisory | CYS | 3 hr |
| Aug 4, 2:39 PM MDT | Special Weather Statement | CYS | 36 min |
| Aug 7, 4:56 PM MDT | Special Weather Statement | CYS | 49 min |
| Aug 8, 2:30 PM MDT | Special Weather Statement | CYS | 30 min |
| Aug 11, 12:54 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 11, 1:24 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 11, 4:51 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Aug 11, 6:13 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 14, 1:54 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 15, 3:59 PM MDT | Severe Thunderstorm Warning | CYS | 46 min |
| Aug 15, 8:56 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 15, 10:45 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 16, 12:56 AM MDT | Severe Thunderstorm Warning | CYS | 79 min |
| Aug 16, 1:13 AM MDT | Mesoscale Discussion | SPC | 92 min |
| Aug 16, 1:40 PM MDT | Mesoscale Discussion | SPC | 65 min |
| Aug 16, 2:54 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 16, 2:56 PM MDT | Special Weather Statement | CYS | 49 min |
| Aug 16, 5:27 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 16, 5:40 PM MDT | Special Weather Statement | CYS | 50 min |
| Aug 16, 7:43 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 17, 1:34 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Aug 20, 2:30 PM MDT | Mesoscale Discussion | SPC | 60 min |
| Aug 20, 3:03 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 20, 6:00 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Aug 20, 10:07 PM MDT | Severe Thunderstorm Warning | CYS | 53 min |
| Aug 20, 10:34 PM MDT | Mesoscale Discussion | SPC | 56 min |
| Aug 20, 10:50 PM MDT | Severe Thunderstorm Warning | CYS | 55 min |
| Aug 20, 11:02 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 20, 11:37 PM MDT | Areal Flood Advisory | CYS | 3 hr |
| Aug 20, 11:39 PM MDT | Severe Thunderstorm Warning | CYS | 66 min |
| Aug 21, 9:53 PM MDT | Special Weather Statement | CYS | 22 min |
| Aug 21, 10:15 PM MDT | Special Weather Statement | CYS | 45 min |
| Aug 22, 2:11 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Aug 22, 5:44 PM MDT | Special Weather Statement | CYS | 46 min |
| Aug 22, 6:03 PM MDT | Severe Thunderstorm Warning | CYS | 42 min |
| Aug 23, 2:08 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 23, 2:58 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 23, 5:32 PM MDT | Mesoscale Discussion | SPC | 58 min |
| Aug 23, 6:32 PM MDT | Special Weather Statement | CYS | 28 min |
| Aug 23, 7:48 PM MDT | Special Weather Statement | CYS | 42 min |
| Aug 30, 4:54 PM MDT | Mesoscale Discussion | SPC | 96 min |
| Sep 6, 8:56 PM MDT | Special Weather Statement | CYS | 49 min |
| Sep 8, 7:42 PM MDT | Special Weather Statement | CYS | 63 min |
| Sep 8, 8:43 PM MDT | Special Weather Statement | CYS | 47 min |
| Sep 10, 12:51 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Sep 10, 5:59 PM MDT | Tornado Warning | CYS | 31 min |
| Sep 11, 7:19 AM MDT | Dense Fog Advisory | CYS | 4 hr |
| Sep 11, 11:28 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 11, 2:31 PM MDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Sep 28, 9:09 PM MDT | Dense Fog Advisory | CYS | 12 hr |
| Oct 2, 2:15 AM MDT | Freeze Watch | CYS | 11 hr |
| Oct 2, 1:16 PM MDT | Freeze Warning | CYS | 20 hr |
| Oct 9, 4:15 AM MDT | Winter Weather Advisory | CYS | 34 hr |
| Oct 9, 10:07 PM MDT | Mesoscale Discussion | SPC | 6 hr |
| Oct 18, 3:10 AM MDT | High Wind Watch | CYS | 36 hr |
| Oct 19, 1:42 AM MDT | High Wind Warning | CYS | 43 hr |
| Oct 25, 3:37 AM MDT | Winter Storm Watch | CYS | 24 hr |
| Oct 26, 3:58 AM MDT | Winter Weather Advisory | CYS | 41 hr |
| Oct 28, 3:18 AM MDT | Winter Weather Advisory | CYS | 47 hr |
| Nov 6, 8:50 AM MST | Freezing Fog Advisory | CYS | 4 hr |
| Nov 6, 2:54 PM MST | Freezing Fog Advisory | CYS | 15 hr |
| Nov 10, 2:39 AM MST | Winter Weather Advisory | CYS | 27 hr |
| Nov 23, 1:07 PM MST | Winter Storm Watch | CYS | 24 hr |
| Nov 24, 1:54 AM MST | Winter Storm Warning | CYS | 63 hr |
| Nov 26, 1:34 AM MST | Mesoscale Discussion | SPC | 5 hr |
| Nov 27, 1:56 PM MST | High Wind Watch | CYS | 37 hr |
| Nov 29, 3:20 AM MST | Blizzard Warning | CYS | 50 hr |
| Nov 29, 3:20 AM MST | Winter Weather Advisory | CYS | 56 hr |
| Nov 29, 3:24 AM MST | High Wind Warning | CYS | 16 hr |
| Nov 29, 7:16 PM MST | High Wind Warning | CYS | 32 hr |
| Nov 29, 9:49 PM MST | Mesoscale Discussion | SPC | 4 hr |
| Dec 26, 2:55 AM MST | Winter Storm Watch | CYS | 24 hr |
| Dec 27, 3:19 AM MST | Winter Storm Warning | CYS | 59 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.