Alert archive / Nebraska / Perkins County
Weather alerts in Perkins County, Nebraska, 2015
136 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Perkins County and its neighbors
Each county as a circle sized by its count in 2015. Tap one for its archive.
- Alerts
- 136
- Warnings
- 39
- Watches
- 28
- Advisories
- 14
- Busiest month
- June29 alerts
- Busiest day
- June 17, 20159 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Perkins County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 23 | 14 | 39% | 13 | 85% | 19 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS North Platte, NE: tornado warnings | 14 | 3 | 79% | 20 | 25% | 10 min |
| NWS North Platte, NE: severe thunderstorm warnings | 295 | 193 | 35% | 384 | 86% | 20 min |
| NWS North Platte, NE: flash flood warnings | 8 | 3 | 63% | 8 | 50% | 53 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 2, 2:49 PM MST | Winter Weather Advisory | LBF | 32 hr |
| Jan 3, 7:33 PM MST | Wind Chill Advisory | LBF | 15 hr |
| Feb 3, 2:51 AM MST | Winter Weather Advisory | LBF | 32 hr |
| Feb 7, 2:24 AM MST | Red Flag Warning | LBF | 15 hr |
| Feb 20, 1:01 PM MST | Winter Weather Advisory | LBF | 41 hr |
| Mar 13, 1:30 PM MDT | Fire Weather Watch | LBF | 37 hr |
| Mar 14, 2:36 PM MDT | Red Flag Warning | LBF | 30 hr |
| Mar 20, 3:13 AM MDT | Red Flag Warning | LBF | 16 hr |
| Mar 20, 2:56 PM MDT | Fire Weather Watch | LBF | 12 hr |
| Mar 23, 3:31 PM MDT | Red Flag Warning | LBF | 27 hr |
| Apr 1, 2:55 AM MDT | Red Flag Warning | LBF | 18 hr |
| Apr 3, 2:36 AM MDT | Fire Weather Watch | LBF | 42 hr |
| Apr 3, 2:12 PM MDT | Red Flag Warning | LBF | 29 hr |
| Apr 11, 3:00 PM MDT | Fire Weather Watch | LBF | 12 hr |
| Apr 12, 2:41 AM MDT | Red Flag Warning | LBF | 16 hr |
| Apr 13, 3:00 AM MDT | Fire Weather Watch | LBF | 12 hr |
| Apr 13, 2:40 PM MDT | Red Flag Warning | LBF | 29 hr |
| Apr 15, 4:49 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 17, 4:05 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 17, 4:37 PM MDT | Tornado Watch | SPC | 7 hr |
| Apr 17, 6:06 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Apr 17, 7:56 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Apr 18, 1:49 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Apr 18, 2:08 PM MDT | Tornado Watch | SPC | 6 hr |
| Apr 18, 5:07 PM MDT | Mesoscale Discussion | SPC | 53 min |
| Apr 18, 7:27 PM MDT | Mesoscale Discussion | SPC | 63 min |
| Apr 23, 6:27 PM MDT | Severe Thunderstorm Warning | LBF | 48 min |
| Apr 23, 6:45 PM MDT | Severe Thunderstorm Warning | LBF | 45 min |
| May 9, 2:34 PM MDT | Mesoscale Discussion | SPC | 56 min |
| May 9, 5:16 PM MDT | Mesoscale Discussion | SPC | 119 min |
| May 10, 2:26 PM MDT | Frost Advisory | LBF | 17 hr |
| May 11, 3:14 AM MDT | Freeze Watch | LBF | 11 hr |
| May 11, 1:57 PM MDT | Frost Advisory | LBF | 18 hr |
| May 15, 12:14 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 15, 12:58 PM MDT | Tornado Watch | SPC | 7 hr |
| May 15, 5:28 PM MDT | Mesoscale Discussion | SPC | 62 min |
| May 15, 7:21 PM MDT | Severe Thunderstorm Warning | LBF | 39 min |
| May 15, 7:55 PM MDT | Severe Thunderstorm Watch | SPC | 4 hr |
| May 15, 8:01 PM MDT | Severe Thunderstorm Warning | LBF | 44 min |
| May 15, 9:53 PM MDT | Mesoscale Discussion | SPC | 67 min |
| May 28, 12:39 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 28, 1:18 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 28, 4:33 PM MDT | Mesoscale Discussion | SPC | 87 min |
| May 28, 5:36 PM MDT | Areal Flood Advisory | LBF | 6 hr |
| May 29, 1:30 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 2, 8:01 PM MDT | Mesoscale Discussion | SPC | 89 min |
| Jun 3, 2:01 AM MDT | Mesoscale Discussion | SPC | 89 min |
| Jun 5, 4:44 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 5, 7:50 PM MDT | Severe Thunderstorm Warning | LBF | 55 min |
| Jun 6, 2:14 PM MDT | Mesoscale Discussion | SPC | 91 min |
| Jun 6, 4:25 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 6, 6:55 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Jun 6, 9:33 PM MDT | Mesoscale Discussion | SPC | 57 min |
| Jun 7, 1:36 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Jun 10, 1:02 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jun 14, 5:52 PM MDT | Severe Thunderstorm Warning | LBF | 38 min |
| Jun 16, 3:49 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 16, 6:23 PM MDT | Severe Thunderstorm Warning | LBF | 52 min |
| Jun 16, 6:34 PM MDT | Mesoscale Discussion | SPC | 86 min |
| Jun 16, 7:12 PM MDT | Severe Thunderstorm Warning | LBF | 63 min |
| Jun 16, 8:23 PM MDT | Areal Flood Advisory | LBF | 4 hr |
| Jun 16, 9:13 PM MDT | Flash Flood Warning | LBF | 6 hr |
| Jun 16, 9:25 PM MDT | Severe Thunderstorm Warning | LBF | 50 min |
| Jun 16, 9:42 PM MDT | Areal Flood Advisory | LBF | 6 hr |
| Jun 16, 10:11 PM MDT | Severe Thunderstorm Warning | LBF | 49 min |
| Jun 16, 10:23 PM MDT | Mesoscale Discussion | SPC | 37 min |
| Jun 18, 2:49 AM MDT | Mesoscale Discussion | SPC | 116 min |
| Jun 18, 5:10 PM MDT | Areal Flood Advisory | LBF | 24 hr |
| Jun 25, 2:10 PM MDT | Mesoscale Discussion | SPC | 65 min |
| Jun 25, 2:30 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 25, 4:25 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Jun 25, 5:22 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jun 25, 8:04 PM MDT | Severe Thunderstorm Warning | LBF | 41 min |
| Jun 25, 8:43 PM MDT | Severe Thunderstorm Warning | LBF | 47 min |
| Jul 4, 4:18 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Jul 11, 1:53 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 11, 5:51 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Jul 14, 2:20 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Jul 17, 3:03 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 17, 3:38 PM MDT | Severe Thunderstorm Warning | LBF | 52 min |
| Jul 17, 5:02 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jul 18, 3:29 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 6:41 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 18, 8:35 PM MDT | Severe Thunderstorm Warning | LBF | 40 min |
| Jul 18, 9:07 PM MDT | Severe Thunderstorm Warning | LBF | 38 min |
| Jul 19, 4:43 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 19, 7:17 PM MDT | Severe Thunderstorm Warning | LBF | 43 min |
| Jul 23, 1:34 PM MDT | Mesoscale Discussion | SPC | 56 min |
| Jul 23, 2:04 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 23, 4:11 PM MDT | Severe Thunderstorm Warning | LBF | 49 min |
| Jul 23, 5:16 PM MDT | Special Weather Statement | LBF | 44 min |
| Jul 23, 5:35 PM MDT | Special Weather Statement | LBF | 40 min |
| Jul 23, 5:54 PM MDT | Severe Thunderstorm Warning | LBF | 36 min |
| Jul 23, 5:55 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 25, 4:22 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 12:30 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 26, 1:07 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 26, 4:22 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jul 26, 5:20 PM MDT | Special Weather Statement | LBF | 40 min |
| Jul 27, 3:57 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 1, 7:19 PM MDT | Special Weather Statement | LBF | 41 min |
| Aug 4, 10:58 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 4, 11:30 AM MDT | Special Weather Statement | LBF | 45 min |
| Aug 5, 6:15 AM MDT | Dense Fog Advisory | LBF | 3 hr |
| Aug 6, 2:36 PM MDT | Flash Flood Watch | LBF | 37 hr |
| Aug 7, 2:12 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 7, 3:05 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 7, 6:27 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 7, 6:51 PM MDT | Severe Thunderstorm Warning | LBF | 24 min |
| Aug 7, 7:12 PM MDT | Severe Thunderstorm Warning | LBF | 33 min |
| Aug 7, 7:49 PM MDT | Severe Thunderstorm Warning | LBF | 41 min |
| Aug 13, 1:45 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 15, 8:17 PM MDT | Special Weather Statement | LBF | 43 min |
| Aug 16, 2:28 AM MDT | Flash Flood Watch | LBF | 18 hr |
| Aug 21, 12:55 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 7, 4:46 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Sep 7, 5:13 PM MDT | Severe Thunderstorm Warning | LBF | 47 min |
| Sep 7, 5:48 PM MDT | Severe Thunderstorm Warning | LBF | 42 min |
| Sep 7, 5:50 PM MDT | Severe Thunderstorm Watch | SPC | 2 hr |
| Oct 10, 2:38 AM MDT | Fire Weather Watch | LBF | 17 hr |
| Oct 10, 7:33 PM MDT | Red Flag Warning | LBF | 24 hr |
| Oct 12, 2:48 AM MDT | Red Flag Warning | LBF | 14 hr |
| Oct 14, 1:26 PM MDT | Freeze Watch | LBF | 14 hr |
| Oct 15, 2:57 AM MDT | Freeze Warning | LBF | 30 hr |
| Nov 9, 2:11 PM MST | Winter Storm Watch | LBF | 23 hr |
| Nov 10, 12:45 PM MST | Blizzard Warning | LBF | 24 hr |
| Nov 16, 2:43 AM MST | Dense Fog Advisory | LBF | 5 hr |
| Nov 16, 2:59 AM MST | Winter Storm Watch | LBF | 11 hr |
| Nov 16, 1:43 PM MST | Winter Storm Warning | LBF | 25 hr |
| Nov 17, 3:00 AM MST | Blizzard Warning | LBF | 11 hr |
| Nov 18, 10:13 AM MST | Special Weather Statement | LBF | 62 min |
| Nov 25, 2:51 AM MST | Winter Weather Advisory | LBF | 34 hr |
| Nov 29, 3:37 AM MST | Winter Weather Advisory | LBF | 65 hr |
| Dec 10, 1:52 AM MST | Special Weather Statement | LBF | 53 min |
| Dec 13, 2:15 AM MST | Winter Storm Watch | LBF | 35 hr |
| Dec 14, 1:01 PM MST | Winter Storm Warning | LBF | 45 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 archive20142016
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.