Alert archive / Nebraska / Perkins County
Weather alerts in Perkins County, Nebraska, 2019
187 weather alerts in 2019, 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 2019. Tap one for its archive.
- Alerts
- 187
- Warnings
- 55
- Watches
- 29
- Advisories
- 34
- Busiest month
- August40 alerts
- Busiest day
- May 28, 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.
Perkins County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 32 | 23 | 28% | 16 | 75% | 34 min |
| Flash flood warnings | 6 | 2 | 67% | 1 | 100% | 85 min |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS North Platte, NE: tornado warnings | 14 | 7 | 50% | 19 | 63% | 16 min |
| NWS North Platte, NE: severe thunderstorm warnings | 294 | 181 | 38% | 370 | 86% | 23 min |
| NWS North Platte, NE: flash flood warnings | 39 | 14 | 64% | 30 | 87% | 212 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 17, 2:10 AM MST | Winter Weather Advisory | LBF | 39 hr |
| Jan 21, 2:12 AM MST | Winter Weather Advisory | LBF | 37 hr |
| Feb 5, 1:49 PM MST | Winter Weather Advisory | LBF | 45 hr |
| Feb 7, 2:22 AM MST | Wind Chill Advisory | LBF | 30 hr |
| Feb 10, 2:15 AM MST | Winter Weather Advisory | LBF | 41 hr |
| Feb 17, 7:00 PM MST | Wind Chill Advisory | LBF | 14 hr |
| Feb 18, 1:40 PM MST | Winter Weather Advisory | LBF | 42 hr |
| Feb 21, 2:35 AM MST | Winter Weather Advisory | LBF | 60 hr |
| Mar 1, 2:00 AM MST | Winter Weather Advisory | LBF | 49 hr |
| Mar 2, 2:15 AM MST | Wind Chill Advisory | LBF | 48 hr |
| Mar 2, 1:36 PM MST | Wind Chill Warning | LBF | 44 hr |
| Mar 4, 2:25 PM MST | Wind Chill Advisory | LBF | 18 hr |
| Mar 7, 5:18 PM MST | Freezing Fog Advisory | LBF | 16 hr |
| Mar 8, 2:48 AM MST | Winter Weather Advisory | LBF | 38 hr |
| Mar 11, 1:54 AM MDT | Winter Storm Watch | LBF | 48 hr |
| Mar 12, 7:41 PM MDT | Flood Watch | LBF | 22 hr |
| Mar 13, 1:37 AM MDT | Winter Storm Warning | LBF | 40 hr |
| Mar 13, 1:44 AM MDT | High Wind Warning | LBF | 40 hr |
| Mar 13, 9:41 AM MDT | Areal Flood Advisory | LBF | 3 hr |
| Apr 8, 3:34 AM MDT | Winter Storm Watch | LBF | 34 hr |
| Apr 9, 2:56 AM MDT | Blizzard Warning | LBF | 64 hr |
| Apr 11, 2:01 PM MDT | Winter Weather Advisory | LBF | 5 hr |
| Apr 20, 1:35 PM MDT | Red Flag Warning | LBF | 5 hr |
| Apr 24, 10:10 PM MDT | Special Weather Statement | LBF | 65 min |
| Apr 26, 6:03 PM MDT | Special Weather Statement | LBF | 42 min |
| Apr 28, 3:48 PM MDT | Severe Thunderstorm Warning | LBF | 42 min |
| Apr 28, 4:22 PM MDT | Severe Thunderstorm Warning | LBF | 38 min |
| May 7, 9:38 PM MDT | Dense Fog Advisory | LBF | 9 hr |
| May 8, 2:02 PM MDT | Freeze Watch | LBF | 12 hr |
| May 9, 2:12 AM MDT | Freeze Warning | LBF | 30 hr |
| May 11, 2:33 PM MDT | Frost Advisory | LBF | 17 hr |
| May 14, 6:23 PM MDT | Special Weather Statement | LBF | 52 min |
| May 16, 6:38 PM MDT | Special Weather Statement | LBF | 37 min |
| May 16, 7:06 PM MDT | Mesoscale Discussion | SPC | 114 min |
| May 17, 12:55 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 17, 1:59 PM MDT | Tornado Watch | SPC | 9 hr |
| May 17, 3:27 PM MDT | Severe Thunderstorm Warning | LBF | 48 min |
| May 17, 4:45 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 17, 4:58 PM MDT | Severe Thunderstorm Warning | LBF | 47 min |
| May 27, 3:39 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 27, 4:27 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| May 27, 5:40 PM MDT | Severe Thunderstorm Warning | LBF | 65 min |
| May 27, 6:25 PM MDT | Severe Thunderstorm Warning | LBF | 65 min |
| May 27, 6:31 PM MDT | Severe Thunderstorm Warning | LBF | 59 min |
| May 27, 6:59 PM MDT | Areal Flood Advisory | LBF | 3 hr |
| May 27, 7:24 PM MDT | Severe Thunderstorm Warning | LBF | 66 min |
| May 27, 7:47 PM MDT | Mesoscale Discussion | SPC | 118 min |
| May 27, 7:50 PM MDT | Special Weather Statement | LBF | 40 min |
| May 27, 8:02 PM MDT | Severe Thunderstorm Warning | LBF | 43 min |
| May 27, 8:18 PM MDT | Flash Flood Warning | LBF | 5 hr |
| May 28, 1:13 AM MDT | Areal Flood Warning | LBF | 9 hr |
| Jun 2, 5:24 PM MDT | Mesoscale Discussion | SPC | 66 min |
| Jun 2, 10:17 PM MDT | Special Weather Statement | LBF | 43 min |
| Jun 2, 10:59 PM MDT | Special Weather Statement | LBF | 61 min |
| Jun 4, 6:51 PM MDT | Severe Thunderstorm Warning | LBF | 54 min |
| Jun 8, 1:18 PM MDT | Mesoscale Discussion | SPC | 87 min |
| Jun 8, 1:51 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 8, 4:51 PM MDT | Mesoscale Discussion | SPC | 54 min |
| Jun 13, 9:01 PM MDT | Special Weather Statement | LBF | 59 min |
| Jun 16, 3:29 AM MDT | Flood Watch | LBF | 23 hr |
| Jun 16, 1:07 PM MDT | Special Weather Statement | LBF | 23 min |
| Jun 16, 1:36 PM MDT | Special Weather Statement | LBF | 39 min |
| Jun 16, 1:38 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 16, 1:46 PM MDT | Severe Thunderstorm Warning | LBF | 44 min |
| Jun 17, 2:56 AM MDT | Flood Watch | LBF | 22 hr |
| Jun 17, 6:13 PM MDT | Areal Flood Advisory | LBF | 3 hr |
| Jun 17, 7:08 PM MDT | Flash Flood Warning | LBF | 3 hr |
| Jun 17, 9:25 PM MDT | Flash Flood Warning | LBF | 3 hr |
| Jun 20, 4:04 PM MDT | Tornado Watch | SPC | 6 hr |
| Jun 20, 7:14 PM MDT | Mesoscale Discussion | SPC | 91 min |
| Jun 20, 8:44 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 23, 11:46 AM MDT | Special Weather Statement | LBF | 29 min |
| Jun 23, 12:18 PM MDT | Special Weather Statement | LBF | 57 min |
| Jun 26, 2:36 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 26, 4:37 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 1, 10:36 PM MDT | Special Weather Statement | LBF | 54 min |
| Jul 4, 2:09 AM MDT | Special Weather Statement | LBF | 51 min |
| Jul 4, 3:03 AM MDT | Special Weather Statement | LBF | 42 min |
| Jul 4, 7:54 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 4, 9:08 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 5, 12:43 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 6:31 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jul 5, 11:47 PM MDT | Special Weather Statement | LBF | 58 min |
| Jul 6, 12:08 AM MDT | Areal Flood Advisory | LBF | 3 hr |
| Jul 6, 12:20 AM MDT | Severe Thunderstorm Warning | LBF | 55 min |
| Jul 6, 12:56 AM MDT | Severe Thunderstorm Warning | LBF | 64 min |
| Jul 6, 1:18 AM MDT | Areal Flood Advisory | LBF | 3 hr |
| Jul 6, 9:52 PM MDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jul 6, 10:52 PM MDT | Severe Thunderstorm Warning | LBF | 53 min |
| Jul 6, 11:44 PM MDT | Severe Thunderstorm Warning | LBF | 61 min |
| Jul 7, 12:22 AM MDT | Severe Thunderstorm Warning | LBF | 53 min |
| Jul 7, 12:27 AM MDT | Areal Flood Advisory | LBF | 3 hr |
| Jul 7, 12:58 AM MDT | Areal Flood Warning | LBF | 3 hr |
| Jul 7, 1:49 AM MDT | Mesoscale Discussion | SPC | 86 min |
| Jul 8, 1:26 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 8, 3:24 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 8, 5:50 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jul 9, 10:45 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 9, 11:43 PM MDT | Special Weather Statement | LBF | 62 min |
| Jul 12, 6:15 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 12, 7:00 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 12, 8:20 PM MDT | Special Weather Statement | LBF | 25 min |
| Jul 12, 8:44 PM MDT | Special Weather Statement | LBF | 61 min |
| Jul 12, 9:02 PM MDT | Mesoscale Discussion | SPC | 88 min |
| Jul 15, 11:08 PM MDT | Special Weather Statement | LBF | 52 min |
| Jul 18, 1:44 PM MDT | Heat Advisory | LBF | 29 hr |
| Jul 21, 1:06 AM MDT | Special Weather Statement | LBF | 39 min |
| Jul 26, 1:30 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 27, 9:34 PM MDT | Special Weather Statement | LBF | 41 min |
| Aug 4, 7:38 PM MDT | Severe Thunderstorm Warning | LBF | 37 min |
| Aug 5, 2:43 AM MDT | Special Weather Statement | LBF | 32 min |
| Aug 8, 12:41 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Aug 8, 2:21 PM MDT | Areal Flood Warning | LBF | 54 min |
| Aug 8, 8:12 PM MDT | Areal Flood Advisory | LBF | 3 hr |
| Aug 8, 9:05 PM MDT | Flash Flood Warning | LBF | 6 hr |
| Aug 10, 2:54 PM MDT | Special Weather Statement | LBF | 51 min |
| Aug 10, 3:30 PM MDT | Severe Thunderstorm Warning | LBF | 45 min |
| Aug 10, 4:12 PM MDT | Special Weather Statement | LBF | 48 min |
| Aug 10, 4:41 PM MDT | Severe Thunderstorm Warning | LBF | 49 min |
| Aug 10, 5:32 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Aug 11, 1:37 AM MDT | Flash Flood Warning | LBF | 4 hr |
| Aug 11, 2:09 AM MDT | Flash Flood Watch | LBF | 24 hr |
| Aug 11, 2:20 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Aug 11, 2:46 PM MDT | Tornado Watch | SPC | 7 hr |
| Aug 11, 5:05 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Aug 11, 8:11 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 13, 11:32 AM MDT | Mesoscale Discussion | SPC | 118 min |
| Aug 13, 11:49 AM MDT | Tornado Watch | SPC | 7 hr |
| Aug 13, 12:37 PM MDT | Severe Thunderstorm Warning | LBF | 53 min |
| Aug 13, 1:00 PM MDT | Severe Thunderstorm Warning | LBF | 45 min |
| Aug 13, 1:28 PM MDT | Areal Flood Advisory | LBF | 3 hr |
| Aug 13, 1:29 PM MDT | Severe Thunderstorm Warning | LBF | 46 min |
| Aug 13, 1:45 PM MDT | Flash Flood Warning | LBF | 2 hr |
| Aug 13, 1:57 PM MDT | Severe Thunderstorm Warning | LBF | 48 min |
| Aug 13, 2:04 PM MDT | Mesoscale Discussion | SPC | 86 min |
| Aug 16, 5:27 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 16, 7:43 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 17, 1:34 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Aug 20, 10:34 PM MDT | Mesoscale Discussion | SPC | 56 min |
| Aug 20, 11:02 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 22, 9:04 PM MDT | Special Weather Statement | LBF | 41 min |
| Aug 23, 2:49 AM MDT | Flood Watch | LBF | 7 hr |
| Aug 23, 9:31 AM MDT | Flash Flood Watch | LBF | 26 hr |
| Aug 25, 4:20 AM MDT | Dense Fog Advisory | LBF | 5 hr |
| Aug 29, 1:44 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 29, 2:21 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 29, 2:54 PM MDT | Special Weather Statement | LBF | 36 min |
| Aug 29, 3:10 PM MDT | Severe Thunderstorm Warning | LBF | 50 min |
| Aug 29, 3:43 PM MDT | Severe Thunderstorm Warning | LBF | 47 min |
| Sep 11, 1:28 PM MDT | Mesoscale Discussion | SPC | 92 min |
| Sep 11, 2:31 PM MDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Sep 11, 4:53 PM MDT | Special Weather Statement | LBF | 37 min |
| Sep 11, 5:53 PM MDT | Severe Thunderstorm Warning | LBF | 52 min |
| Sep 11, 5:56 PM MDT | Severe Thunderstorm Warning | LBF | 49 min |
| Sep 11, 6:32 PM MDT | Severe Thunderstorm Warning | LBF | 43 min |
| Sep 11, 7:13 PM MDT | Severe Thunderstorm Warning | LBF | 47 min |
| Sep 11, 7:14 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 11, 7:53 PM MDT | Severe Thunderstorm Warning | LBF | 67 min |
| Sep 11, 8:41 PM MDT | Severe Thunderstorm Warning | LBF | 64 min |
| Sep 19, 1:48 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 19, 5:41 PM MDT | Special Weather Statement | LBF | 49 min |
| Sep 19, 6:25 PM MDT | Special Weather Statement | LBF | 50 min |
| Sep 19, 7:44 PM MDT | Special Weather Statement | LBF | 46 min |
| Sep 19, 8:16 PM MDT | Severe Thunderstorm Warning | LBF | 59 min |
| Sep 28, 8:04 PM MDT | Dense Fog Advisory | LBF | 11 hr |
| Oct 2, 2:05 AM MDT | Frost Advisory | LBF | 31 hr |
| Oct 6, 1:36 AM MDT | Frost Advisory | LBF | 30 hr |
| Oct 9, 2:15 AM MDT | Freeze Warning | LBF | 34 hr |
| Oct 17, 1:59 AM MDT | Red Flag Warning | LBF | 16 hr |
| Oct 19, 1:55 PM MDT | Fire Weather Watch | LBF | 18 hr |
| Oct 20, 8:20 AM MDT | Red Flag Warning | LBF | 10 hr |
| Oct 28, 1:34 PM MDT | Winter Weather Advisory | LBF | 37 hr |
| Nov 8, 12:13 PM MST | Special Weather Statement | LBF | 3 hr |
| Nov 9, 2:25 AM MST | Red Flag Warning | LBF | 15 hr |
| Nov 10, 2:21 AM MST | Winter Weather Advisory | LBF | 28 hr |
| Nov 20, 11:55 AM MST | Winter Weather Advisory | LBF | 15 hr |
| Nov 23, 1:22 PM MST | Winter Storm Watch | LBF | 24 hr |
| Nov 24, 1:28 PM MST | Winter Storm Warning | LBF | 61 hr |
| Nov 26, 1:34 AM MST | Mesoscale Discussion | SPC | 5 hr |
| Nov 26, 9:58 AM MST | Mesoscale Discussion | SPC | 6 hr |
| Nov 27, 1:41 PM MST | High Wind Watch | LBF | 37 hr |
| Nov 27, 2:00 PM MST | Winter Weather Advisory | LBF | 46 hr |
| Nov 29, 2:59 AM MST | High Wind Warning | LBF | 53 hr |
| Nov 29, 7:00 PM MST | Dense Fog Advisory | LBF | 7 hr |
| Nov 30, 6:53 AM MST | Snow Squall Warning | LBF | 67 min |
| Dec 26, 2:56 AM MST | Winter Storm Watch | LBF | 24 hr |
| Dec 27, 2:29 AM MST | Winter Storm Warning | LBF | 3 days |
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.