Alert archive / Nebraska / Box Butte County
Weather alerts in Box Butte County, Nebraska, 2010
148 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Box Butte County and its neighbors
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Alerts
- 148
- Warnings
- 50
- Watches
- 26
- Advisories
- 35
- Busiest month
- June43 alerts
- Busiest day
- May 24, 201013 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
4 of 5 tornado warnings covering Box Butte County in 2010 had a tornado report inside them; 3 of 3 tornado reports fell inside a warning, on average 6 minutes after it went out.
Box Butte County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 5 | 4 | 20% | 3 | 100% | 6 min |
| Severe thunderstorm warnings | 32 | 20 | 38% | 43 | 72% | 32 min |
| Flash flood warnings | 3 | 0 | 100% | 0 |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Cheyenne, WY: tornado warnings | 44 | 20 | 55% | 47 | 72% | 15 min |
| NWS Cheyenne, WY: severe thunderstorm warnings | 180 | 94 | 48% | 354 | 71% | 23 min |
| NWS Cheyenne, WY: flash flood warnings | 17 | 9 | 47% | 40 | 83% | 57 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 5, 4:27 AM MST | Winter Weather Advisory | CYS | 38 hr |
| Jan 6, 2:38 PM MST | Wind Chill Warning | CYS | 12 hr |
| Jan 7, 2:45 AM MST | Wind Chill Advisory | CYS | 6 hr |
| Jan 7, 1:49 PM MST | Wind Chill Warning | CYS | 21 hr |
| Jan 24, 4:03 AM MST | Wind Advisory | CYS | 14 hr |
| Jan 25, 2:08 AM MST | Wind Advisory | CYS | 16 hr |
| Feb 3, 2:16 PM MST | Winter Weather Advisory | CYS | 24 hr |
| Feb 17, 12:14 PM MST | Winter Weather Advisory | CYS | 38 hr |
| Feb 19, 8:54 PM MST | Winter Weather Advisory | CYS | 31 hr |
| Mar 8, 6:47 AM MST | Dense Fog Advisory | CYS | 3 hr |
| Mar 11, 2:40 AM MST | Wind Advisory | CYS | 14 hr |
| Mar 17, 2:35 PM MDT | Winter Storm Watch | CYS | 23 hr |
| Mar 18, 3:27 AM MDT | Winter Weather Advisory | CYS | 34 hr |
| Mar 26, 2:35 PM MDT | Wind Advisory | CYS | 26 hr |
| Apr 3, 5:49 AM MDT | Wind Advisory | CYS | 14 hr |
| Apr 5, 3:15 PM MDT | Winter Weather Advisory | CYS | 39 hr |
| Apr 12, 9:19 PM MDT | Wind Advisory | CYS | 20 hr |
| Apr 13, 11:19 AM MDT | Mesoscale Discussion | SPC | 86 min |
| Apr 23, 1:54 PM MDT | Wind Advisory | CYS | 22 hr |
| May 3, 10:21 AM MDT | High Wind Warning | CYS | 33 hr |
| May 3, 10:21 AM MDT | Wind Advisory | CYS | 17 hr |
| May 6, 4:03 AM MDT | Wind Advisory | CYS | 15 hr |
| May 10, 1:32 AM MDT | Mesoscale Discussion | SPC | 88 min |
| May 11, 3:49 AM MDT | Winter Weather Advisory | CYS | 34 hr |
| May 17, 2:16 AM MDT | Dense Fog Advisory | CYS | 7 hr |
| May 21, 1:30 PM MDT | Mesoscale Discussion | SPC | 60 min |
| May 21, 2:26 PM MDT | Tornado Watch | SPC | 8 hr |
| May 22, 2:09 PM MDT | Mesoscale Discussion | SPC | 96 min |
| May 23, 10:40 AM MDT | High Wind Watch | CYS | 31 hr |
| May 23, 10:39 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 24, 3:47 AM MDT | High Wind Warning | CYS | 16 hr |
| May 24, 5:06 AM MDT | Mesoscale Discussion | SPC | 114 min |
| May 24, 10:55 AM MDT | Mesoscale Discussion | SPC | 95 min |
| May 24, 11:21 AM MDT | Tornado Watch | SPC | 9 hr |
| May 24, 11:48 AM MDT | Severe Thunderstorm Warning | CYS | 57 min |
| May 24, 11:54 AM MDT | Tornado Warning | CYS | 66 min |
| May 24, 12:40 PM MDT | Severe Thunderstorm Warning | CYS | 65 min |
| May 24, 1:42 PM MDT | Severe Thunderstorm Warning | CYS | 63 min |
| May 24, 1:44 PM MDT | Severe Thunderstorm Warning | CYS | 61 min |
| May 24, 2:08 PM MDT | Tornado Warning | CYS | 37 min |
| May 24, 2:33 PM MDT | Mesoscale Discussion | SPC | 57 min |
| May 24, 2:44 PM MDT | Severe Thunderstorm Warning | CYS | 61 min |
| May 26, 1:26 PM MDT | Mesoscale Discussion | SPC | 64 min |
| May 26, 1:49 PM MDT | Tornado Watch | SPC | 7 hr |
| May 27, 10:47 AM MDT | Wind Advisory | CYS | 15 hr |
| May 28, 5:30 AM MDT | Wind Advisory | CYS | 9 hr |
| Jun 6, 2:24 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 7, 3:31 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 7, 5:57 PM MDT | Severe Thunderstorm Warning | CYS | 63 min |
| Jun 7, 6:12 PM MDT | Severe Thunderstorm Warning | CYS | 63 min |
| Jun 7, 6:23 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 7, 6:40 PM MDT | Severe Thunderstorm Warning | CYS | 38 min |
| Jun 7, 6:43 PM MDT | Severe Thunderstorm Warning | CYS | 62 min |
| Jun 7, 6:44 PM MDT | Areal Flood Advisory | CYS | 3 hr |
| Jun 7, 7:02 PM MDT | Tornado Warning | CYS | 28 min |
| Jun 7, 7:14 PM MDT | Tornado Warning | CYS | 31 min |
| Jun 7, 7:43 PM MDT | Tornado Warning | CYS | 47 min |
| Jun 7, 8:01 PM MDT | Flash Flood Warning | CYS | 4 hr |
| Jun 7, 8:42 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 9, 2:39 PM MDT | Tornado Watch | SPC | 6 hr |
| Jun 9, 8:26 PM MDT | Mesoscale Discussion | SPC | 64 min |
| Jun 9, 8:45 PM MDT | Severe Thunderstorm Watch | SPC | 11 hr |
| Jun 9, 10:52 PM MDT | Severe Thunderstorm Warning | CYS | 38 min |
| Jun 9, 10:52 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jun 9, 11:11 PM MDT | Severe Thunderstorm Warning | CYS | 49 min |
| Jun 9, 11:29 PM MDT | Severe Thunderstorm Warning | CYS | 47 min |
| Jun 10, 12:30 AM MDT | Severe Thunderstorm Warning | CYS | 60 min |
| Jun 10, 12:41 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 10, 12:46 AM MDT | Flash Flood Warning | CYS | 5 hr |
| Jun 10, 1:26 AM MDT | Severe Thunderstorm Warning | CYS | 64 min |
| Jun 10, 6:01 PM MDT | Tornado Watch | SPC | 5 hr |
| Jun 10, 6:45 PM MDT | Areal Flood Warning | CYS | 13 hr |
| Jun 10, 7:05 PM MDT | Severe Thunderstorm Warning | CYS | 25 min |
| Jun 10, 9:37 PM MDT | Mesoscale Discussion | SPC | 53 min |
| Jun 11, 3:01 AM MDT | Flood Watch | CYS | 4 days |
| Jun 11, 5:45 PM MDT | Severe Thunderstorm Warning | CYS | 47 min |
| Jun 16, 3:16 AM MDT | High Wind Warning | CYS | 35 hr |
| Jun 16, 3:16 AM MDT | Wind Advisory | CYS | 38 hr |
| Jun 16, 4:01 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 16, 7:06 PM MDT | Severe Thunderstorm Warning | CYS | 47 min |
| Jun 19, 9:08 PM MDT | Mesoscale Discussion | SPC | 67 min |
| Jun 19, 10:20 PM MDT | Severe Thunderstorm Warning | CYS | 55 min |
| Jun 20, 1:30 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 21, 2:08 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 21, 6:42 PM MDT | Mesoscale Discussion | SPC | 93 min |
| Jun 21, 8:08 PM MDT | Severe Thunderstorm Warning | CYS | 26 min |
| Jun 22, 3:07 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jun 22, 4:03 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 26, 4:30 PM MDT | Severe Thunderstorm Warning | CYS | 60 min |
| Jul 3, 12:02 PM MDT | Mesoscale Discussion | SPC | 88 min |
| Jul 3, 2:02 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 3, 2:53 PM MDT | Severe Thunderstorm Warning | CYS | 37 min |
| Jul 3, 3:26 PM MDT | Severe Thunderstorm Warning | CYS | 49 min |
| Jul 3, 4:12 PM MDT | Severe Thunderstorm Warning | CYS | 35 min |
| Jul 3, 6:06 PM MDT | Mesoscale Discussion | SPC | 54 min |
| Jul 6, 2:42 AM MDT | Flash Flood Watch | CYS | 23 hr |
| Jul 6, 1:06 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Jul 6, 1:50 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 6, 5:22 PM MDT | Mesoscale Discussion | SPC | 53 min |
| Jul 6, 6:10 PM MDT | Severe Thunderstorm Warning | CYS | 65 min |
| Jul 6, 8:20 PM MDT | Mesoscale Discussion | SPC | 25 min |
| Jul 10, 12:34 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Jul 10, 3:26 PM MDT | Severe Thunderstorm Warning | CYS | 17 min |
| Jul 10, 3:41 PM MDT | Severe Thunderstorm Warning | CYS | 34 min |
| Jul 10, 4:17 PM MDT | Mesoscale Discussion | SPC | 58 min |
| Jul 11, 12:47 PM MDT | Mesoscale Discussion | SPC | 28 min |
| Jul 11, 1:33 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 11, 2:17 PM MDT | Severe Thunderstorm Warning | CYS | 33 min |
| Jul 11, 2:47 PM MDT | Severe Thunderstorm Warning | CYS | 38 min |
| Jul 18, 2:00 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 7:08 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 18, 7:14 PM MDT | Severe Thunderstorm Warning | CYS | 30 min |
| Jul 19, 8:09 PM MDT | Severe Thunderstorm Warning | CYS | 66 min |
| Jul 19, 9:02 PM MDT | Severe Thunderstorm Warning | CYS | 28 min |
| Jul 21, 6:22 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jul 22, 5:35 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Jul 22, 6:42 PM MDT | Flash Flood Warning | CYS | 2 hr |
| Jul 29, 9:00 AM MDT | Flash Flood Watch | CYS | 11 hr |
| Aug 1, 3:49 PM MDT | Mesoscale Discussion | SPC | 86 min |
| Aug 1, 7:03 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Aug 3, 2:02 PM MDT | Mesoscale Discussion | SPC | 58 min |
| Aug 3, 4:56 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 9, 2:48 PM MDT | Mesoscale Discussion | SPC | 87 min |
| Aug 9, 8:46 PM MDT | Mesoscale Discussion | SPC | 89 min |
| Aug 16, 2:34 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 16, 5:44 PM MDT | Mesoscale Discussion | SPC | 61 min |
| Sep 5, 9:45 PM MDT | Wind Advisory | CYS | 17 hr |
| Sep 6, 3:02 PM MDT | Freeze Warning | CYS | 17 hr |
| Sep 9, 5:33 PM MDT | Mesoscale Discussion | SPC | 57 min |
| Sep 9, 5:47 PM MDT | Severe Thunderstorm Warning | CYS | 50 min |
| Sep 14, 4:43 PM MDT | Mesoscale Discussion | SPC | 92 min |
| Oct 12, 10:07 AM MDT | Freeze Watch | CYS | 4 hr |
| Oct 25, 4:59 AM MDT | Wind Advisory | CYS | 13 hr |
| Oct 25, 3:01 PM MDT | High Wind Watch | CYS | 13 hr |
| Oct 26, 4:09 AM MDT | High Wind Warning | CYS | 14 hr |
| Oct 27, 3:42 AM MDT | High Wind Warning | CYS | 14 hr |
| Nov 12, 2:24 AM MST | Dense Fog Advisory | CYS | 6 hr |
| Nov 20, 5:57 PM MST | Dense Fog Advisory | CYS | 19 hr |
| Nov 24, 9:01 AM MST | Wind Advisory | CYS | 9 hr |
| Nov 24, 6:05 PM MST | Wind Chill Advisory | CYS | 14 hr |
| Nov 28, 1:20 PM MST | Wind Advisory | CYS | 32 hr |
| Dec 3, 12:52 PM MST | Wind Advisory | CYS | 5 hr |
| Dec 6, 2:02 AM MST | Dense Fog Advisory | CYS | 11 hr |
| Dec 10, 4:25 PM MST | Wind Advisory | CYS | 25 hr |
| Dec 20, 10:23 AM MST | Wind Advisory | CYS | 7 hr |
| Dec 25, 2:49 PM MST | Dense Fog Advisory | CYS | 18 hr |
| Dec 28, 2:52 PM MST | Winter Storm Watch | CYS | 22 hr |
| Dec 29, 12:37 PM MST | Blizzard Warning | CYS | 59 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 32 |
| Tornado Warning | 5 |
| Severe Thunderstorm Watch | 8 |
| Tornado Watch | 10 |
| Mesoscale Discussion | 37 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 3 |
| Flash Flood Watch | 2 |
| Flood Watch | 1 |
| Areal Flood Advisory | 1 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Watch | 2 |
| Winter Weather Advisory | 7 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Warning | 2 |
| Freeze Watch | 1 |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 5 |
| High Wind Watch | 2 |
| Wind Advisory | 19 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
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.