Alert archive / Nebraska / Sheridan County
Weather alerts in Sheridan County, Nebraska, 2020
172 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Sheridan County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 172
- Warnings
- 50
- Watches
- 26
- Advisories
- 13
- Busiest month
- July48 alerts
- Busiest day
- July 20, 202011 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Sheridan County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 25 | 15 | 40% | 15 | 87% | 11 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS North Platte, NE: tornado warnings | 17 | 5 | 71% | 22 | 36% | 16 min |
| NWS North Platte, NE: severe thunderstorm warnings | 323 | 183 | 43% | 352 | 82% | 20 min |
| NWS North Platte, NE: flash flood warnings | 9 | 3 | 67% | 22 | 32% | 27 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 31, 1:53 PM MST | Fire Weather Watch | LBF | 13 hr |
| Feb 1, 2:25 AM MST | Red Flag Warning | LBF | 16 hr |
| Feb 3, 2:33 AM MST | Winter Weather Advisory | LBF | 24 hr |
| Feb 17, 10:13 AM MST | Winter Weather Advisory | LBF | 7 hr |
| Feb 24, 2:32 AM MST | Winter Weather Advisory | LBF | 38 hr |
| Mar 3, 1:32 PM MST | Red Flag Warning | LBF | 4 days |
| Mar 11, 2:13 AM MDT | Red Flag Warning | LBF | 17 hr |
| Mar 12, 12:29 PM MDT | Winter Storm Warning | LBF | 38 hr |
| Mar 12, 12:29 PM MDT | Winter Weather Advisory | LBF | 50 hr |
| Mar 16, 1:40 PM MDT | Winter Storm Watch | LBF | 25 hr |
| Mar 17, 2:35 PM MDT | Blizzard Warning | LBF | 54 hr |
| Mar 19, 4:45 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Mar 19, 6:47 PM MDT | Winter Weather Advisory | LBF | 104 min |
| Mar 27, 12:17 PM MDT | Winter Weather Advisory | LBF | 23 hr |
| Mar 31, 2:02 AM MDT | Dense Fog Advisory | LBF | 7 hr |
| Apr 1, 2:51 AM MDT | Winter Weather Advisory | LBF | 47 hr |
| Apr 5, 1:20 PM MDT | Fire Weather Watch | LBF | 13 hr |
| Apr 6, 2:05 AM MDT | Red Flag Warning | LBF | 40 hr |
| Apr 10, 2:17 AM MDT | Winter Storm Watch | LBF | 12 hr |
| Apr 10, 2:23 PM MDT | Winter Storm Warning | LBF | 48 hr |
| Apr 27, 2:19 PM MDT | Red Flag Warning | LBF | 29 hr |
| Apr 28, 3:10 PM MDT | Special Weather Statement | LBF | 95 min |
| Apr 28, 3:45 PM MDT | Special Weather Statement | LBF | 60 min |
| Apr 29, 1:53 AM MDT | Red Flag Warning | LBF | 41 hr |
| Apr 29, 1:51 PM MDT | Fire Weather Watch | LBF | 4 hr |
| Apr 30, 8:14 PM MDT | Special Weather Statement | LBF | 46 min |
| Apr 30, 9:24 PM MDT | Special Weather Statement | LBF | 51 min |
| May 3, 2:44 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 7, 1:59 PM MDT | Frost Advisory | LBF | 18 hr |
| May 9, 2:02 AM MDT | Freeze Warning | LBF | 30 hr |
| May 23, 12:48 PM MDT | Mesoscale Discussion | SPC | 117 min |
| May 23, 1:15 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 23, 2:57 PM MDT | Mesoscale Discussion | SPC | 93 min |
| May 23, 5:27 PM MDT | Mesoscale Discussion | SPC | 93 min |
| May 23, 6:07 PM MDT | Special Weather Statement | LBF | 38 min |
| May 23, 6:46 PM MDT | Special Weather Statement | LBF | 44 min |
| May 23, 7:07 PM MDT | Special Weather Statement | LBF | 38 min |
| May 23, 7:17 PM MDT | Severe Thunderstorm Warning | LBF | 43 min |
| May 23, 7:29 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| May 23, 7:42 PM MDT | Special Weather Statement | LBF | 18 min |
| May 23, 7:55 PM MDT | Special Weather Statement | LBF | 65 min |
| May 31, 3:43 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 1, 5:16 PM MDT | Special Weather Statement | LBF | 29 min |
| Jun 3, 1:05 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 3, 2:56 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 4, 2:48 PM MDT | Special Weather Statement | LBF | 42 min |
| Jun 4, 3:03 PM MDT | Special Weather Statement | LBF | 42 min |
| Jun 4, 3:43 PM MDT | Severe Thunderstorm Warning | LBF | 62 min |
| Jun 5, 7:01 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Jun 5, 8:54 PM MDT | Severe Thunderstorm Warning | LBF | 51 min |
| Jun 6, 2:33 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Jun 6, 4:49 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 6, 5:25 PM MDT | Mesoscale Discussion | SPC | 95 min |
| Jun 6, 5:57 PM MDT | Severe Thunderstorm Warning | LBF | 48 min |
| Jun 6, 6:16 PM MDT | Severe Thunderstorm Warning | LBF | 44 min |
| Jun 6, 7:01 PM MDT | Severe Thunderstorm Warning | LBF | 44 min |
| Jun 7, 2:31 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 7, 5:00 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jun 7, 8:18 PM MDT | Mesoscale Discussion | SPC | 57 min |
| Jun 8, 8:01 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Jun 20, 2:17 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jun 21, 1:05 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 21, 5:06 PM MDT | Special Weather Statement | LBF | 39 min |
| Jun 25, 2:30 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 25, 3:59 PM MDT | Special Weather Statement | LBF | 31 min |
| Jun 25, 5:28 PM MDT | Severe Thunderstorm Warning | LBF | 62 min |
| Jun 25, 5:48 PM MDT | Severe Thunderstorm Warning | LBF | 24 min |
| Jun 26, 7:19 PM MDT | Special Weather Statement | LBF | 56 min |
| Jul 2, 4:53 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 5, 5:00 PM MDT | Special Weather Statement | LBF | 60 min |
| Jul 5, 6:32 PM MDT | Special Weather Statement | LBF | 43 min |
| Jul 5, 7:13 PM MDT | Special Weather Statement | LBF | 32 min |
| Jul 6, 7:07 PM MDT | Special Weather Statement | LBF | 53 min |
| Jul 6, 7:38 PM MDT | Severe Thunderstorm Warning | LBF | 52 min |
| Jul 7, 4:26 PM MDT | Special Weather Statement | LBF | 49 min |
| Jul 7, 4:56 PM MDT | Special Weather Statement | LBF | 64 min |
| Jul 7, 5:57 PM MDT | Special Weather Statement | LBF | 63 min |
| Jul 7, 6:49 PM MDT | Special Weather Statement | LBF | 41 min |
| Jul 7, 9:57 PM MDT | Special Weather Statement | LBF | 63 min |
| Jul 7, 11:01 PM MDT | Special Weather Statement | LBF | 59 min |
| Jul 7, 11:40 PM MDT | Severe Thunderstorm Warning | LBF | 50 min |
| Jul 8, 1:13 AM MDT | Special Weather Statement | LBF | 47 min |
| Jul 8, 6:26 PM MDT | Severe Thunderstorm Warning | LBF | 49 min |
| Jul 8, 6:45 PM MDT | Severe Thunderstorm Warning | LBF | 45 min |
| Jul 9, 12:51 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Jul 9, 7:08 PM MDT | Special Weather Statement | LBF | 52 min |
| Jul 9, 8:28 PM MDT | Severe Thunderstorm Warning | LBF | 47 min |
| Jul 10, 2:14 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 10, 6:56 PM MDT | Severe Thunderstorm Warning | LBF | 49 min |
| Jul 10, 7:01 PM MDT | Severe Thunderstorm Warning | LBF | 27 min |
| Jul 10, 7:07 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 13, 2:36 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 19, 2:50 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jul 19, 4:06 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 19, 6:48 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Jul 19, 8:12 PM MDT | Special Weather Statement | LBF | 33 min |
| Jul 19, 8:14 PM MDT | Special Weather Statement | LBF | 31 min |
| Jul 19, 8:29 PM MDT | Severe Thunderstorm Warning | LBF | 46 min |
| Jul 19, 8:44 PM MDT | Special Weather Statement | LBF | 31 min |
| Jul 19, 9:25 PM MDT | Mesoscale Discussion | SPC | 65 min |
| Jul 19, 9:28 PM MDT | Special Weather Statement | LBF | 32 min |
| Jul 19, 9:46 PM MDT | Severe Thunderstorm Warning | LBF | 44 min |
| Jul 20, 2:51 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Jul 20, 3:49 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 20, 5:35 PM MDT | Special Weather Statement | LBF | 40 min |
| Jul 20, 6:17 PM MDT | Mesoscale Discussion | SPC | 88 min |
| Jul 20, 6:19 PM MDT | Special Weather Statement | LBF | 41 min |
| Jul 20, 6:32 PM MDT | Severe Thunderstorm Warning | LBF | 28 min |
| Jul 20, 6:59 PM MDT | Severe Thunderstorm Warning | LBF | 46 min |
| Jul 20, 7:58 PM MDT | Severe Thunderstorm Warning | LBF | 47 min |
| Jul 24, 1:50 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jul 24, 2:21 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 24, 3:06 PM MDT | Special Weather Statement | LBF | 39 min |
| Jul 24, 3:37 PM MDT | Special Weather Statement | LBF | 53 min |
| Jul 24, 4:19 PM MDT | Special Weather Statement | LBF | 41 min |
| Jul 29, 4:28 PM MDT | Areal Flood Warning | LBF | 3 hr |
| Jul 31, 8:12 PM MDT | Special Weather Statement | LBF | 33 min |
| Aug 4, 4:42 PM MDT | Special Weather Statement | LBF | 33 min |
| Aug 4, 5:05 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Aug 4, 5:39 PM MDT | Severe Thunderstorm Warning | LBF | 51 min |
| Aug 5, 11:25 PM MDT | Special Weather Statement | LBF | 50 min |
| Aug 6, 12:05 AM MDT | Special Weather Statement | LBF | 40 min |
| Aug 6, 5:13 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 8, 1:31 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Aug 8, 5:00 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 8, 6:12 PM MDT | Severe Thunderstorm Warning | LBF | 63 min |
| Aug 8, 7:14 PM MDT | Severe Thunderstorm Warning | LBF | 61 min |
| Aug 8, 7:58 PM MDT | Mesoscale Discussion | SPC | 92 min |
| Aug 11, 1:17 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Aug 11, 4:10 PM MDT | Special Weather Statement | LBF | 50 min |
| Aug 11, 4:51 PM MDT | Special Weather Statement | LBF | 39 min |
| Aug 11, 5:37 PM MDT | Severe Thunderstorm Warning | LBF | 53 min |
| Aug 12, 4:02 PM MDT | Special Weather Statement | LBF | 43 min |
| Aug 12, 4:26 PM MDT | Special Weather Statement | LBF | 19 min |
| Aug 12, 4:28 PM MDT | Mesoscale Discussion | SPC | 92 min |
| Aug 12, 4:44 PM MDT | Special Weather Statement | LBF | 46 min |
| Aug 12, 5:30 PM MDT | Special Weather Statement | LBF | 45 min |
| Aug 12, 6:16 PM MDT | Special Weather Statement | LBF | 14 min |
| Aug 12, 6:27 PM MDT | Special Weather Statement | LBF | 33 min |
| Aug 15, 1:12 PM MDT | Special Weather Statement | LBF | 48 min |
| Aug 15, 1:29 PM MDT | Severe Thunderstorm Warning | LBF | 31 min |
| Aug 15, 1:42 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 15, 2:01 PM MDT | Special Weather Statement | LBF | 44 min |
| Aug 15, 2:05 PM MDT | Areal Flood Advisory | LBF | 55 min |
| Aug 17, 5:00 PM MDT | Special Weather Statement | LBF | 30 min |
| Aug 27, 6:17 PM MDT | Special Weather Statement | LBF | 58 min |
| Aug 30, 2:38 AM MDT | Red Flag Warning | LBF | 17 hr |
| Sep 4, 1:41 PM MDT | Red Flag Warning | LBF | 29 hr |
| Sep 5, 6:55 PM MDT | Red Flag Warning | LBF | 23 hr |
| Sep 25, 3:00 AM MDT | Fire Weather Watch | LBF | 11 hr |
| Sep 25, 1:32 PM MDT | Red Flag Warning | LBF | 29 hr |
| Oct 1, 2:20 AM MDT | Freeze Warning | LBF | 30 hr |
| Oct 4, 2:07 AM MDT | Fire Weather Watch | LBF | 12 hr |
| Oct 4, 1:49 PM MDT | Red Flag Warning | LBF | 29 hr |
| Oct 5, 1:18 PM MDT | Fire Weather Watch | LBF | 12 hr |
| Oct 9, 2:08 AM MDT | Fire Weather Watch | LBF | 12 hr |
| Oct 9, 1:56 PM MDT | Fire Weather Watch | LBF | 24 hr |
| Oct 9, 1:56 PM MDT | Red Flag Warning | LBF | 29 hr |
| Oct 10, 2:14 AM MDT | Red Flag Warning | LBF | 40 hr |
| Oct 11, 2:21 AM MDT | Fire Weather Watch | LBF | 12 hr |
| Oct 11, 1:58 PM MDT | Red Flag Warning | LBF | 29 hr |
| Oct 23, 2:13 AM MDT | Winter Storm Watch | LBF | 24 hr |
| Oct 23, 1:14 PM MDT | Winter Storm Warning | LBF | 65 hr |
| Nov 7, 1:39 AM MST | High Wind Watch | LBF | 23 hr |
| Nov 8, 1:07 AM MST | High Wind Warning | LBF | 13 hr |
| Nov 9, 3:30 AM MST | Winter Weather Advisory | LBF | 8 hr |
| Nov 13, 3:12 AM MST | Red Flag Warning | LBF | 14 hr |
| Nov 18, 11:08 AM MST | Red Flag Warning | LBF | 5 hr |
| Dec 21, 8:13 PM MST | High Wind Watch | LBF | 7 hr |
| Dec 22, 3:20 AM MST | High Wind Warning | LBF | 38 hr |
| Dec 22, 11:08 AM MST | Winter Weather Advisory | LBF | 30 hr |
| Dec 28, 1:59 AM MST | Winter Weather Advisory | LBF | 39 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 | 25 |
| Severe Thunderstorm Watch | 12 |
| Mesoscale Discussion | 31 |
| Special Weather Statement | 52 |
| Flooding | |
| Areal Flood Warning | 1 |
| Areal Flood Advisory | 1 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 10 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 2 |
| Fire | |
| Red Flag Warning | 16 |
| Fire Weather Watch | 9 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.