Alert archive / Nebraska / Hayes County
Weather alerts in Hayes County, Nebraska, 2009
141 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Hayes County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 141
- Warnings
- 31
- Watches
- 32
- Advisories
- 36
- Busiest month
- June28 alerts
- Busiest day
- July 17, 20096 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Hayes County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 14 | 6 | 57% | 8 | 100% | 12 min |
| Flash flood warnings | 1 | 1 | 0% | 1 | 100% | 98 min |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS North Platte, NE: tornado warnings | 71 | 11 | 85% | 20 | 65% | 15 min |
| NWS North Platte, NE: severe thunderstorm warnings | 416 | 197 | 53% | 456 | 76% | 22 min |
| NWS North Platte, NE: flash flood warnings | 8 | 4 | 50% | 4 | 100% | 61 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 9, 3:34 AM CST | Wind Advisory | LBF | 14 hr |
| Jan 11, 3:16 PM CST | Wind Advisory | LBF | 27 hr |
| Jan 12, 2:46 AM CST | High Wind Warning | LBF | 13 hr |
| Jan 14, 2:58 AM CST | Wind Advisory | LBF | 7 hr |
| Jan 15, 1:42 AM CST | Winter Weather Advisory | LBF | 10 hr |
| Jan 17, 3:17 AM CST | Wind Advisory | LBF | 12 hr |
| Jan 18, 3:30 AM CST | Wind Advisory | LBF | 15 hr |
| Jan 19, 3:19 AM CST | Wind Advisory | LBF | 15 hr |
| Jan 19, 12:30 PM CST | Red Flag Warning | LBF | 6 hr |
| Feb 5, 2:29 PM CST | Fire Weather Watch | LBF | 13 hr |
| Feb 6, 3:43 AM CST | Red Flag Warning | LBF | 14 hr |
| Feb 9, 3:34 PM CST | Wind Advisory | LBF | 12 hr |
| Feb 11, 2:57 PM CST | Winter Storm Watch | LBF | 24 hr |
| Feb 12, 3:24 PM CST | Winter Storm Warning | LBF | 24 hr |
| Feb 13, 6:18 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Mar 4, 3:31 PM CST | Fire Weather Watch | LBF | 12 hr |
| Mar 5, 3:24 AM CST | Red Flag Warning | LBF | 16 hr |
| Mar 7, 3:40 AM CST | Winter Weather Advisory | LBF | 29 hr |
| Mar 15, 3:10 PM CDT | Fire Weather Watch | LBF | 13 hr |
| Mar 16, 3:50 AM CDT | Red Flag Warning | LBF | 16 hr |
| Mar 21, 2:28 AM CDT | Dense Fog Advisory | LBF | 8 hr |
| Mar 23, 3:30 AM CDT | Wind Advisory | LBF | 21 hr |
| Mar 24, 3:41 AM CDT | Wind Advisory | LBF | 17 hr |
| Mar 25, 3:33 PM CDT | Winter Storm Watch | LBF | 12 hr |
| Mar 26, 3:36 AM CDT | Winter Weather Advisory | LBF | 21 hr |
| Mar 30, 10:02 PM CDT | Wind Advisory | LBF | 21 hr |
| Apr 2, 3:28 AM CDT | Winter Storm Watch | LBF | 24 hr |
| Apr 3, 3:36 AM CDT | Blizzard Warning | LBF | 51 hr |
| Apr 3, 3:36 AM CDT | Winter Storm Warning | LBF | 32 hr |
| Apr 4, 11:25 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 4, 3:20 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 5, 7:03 AM CDT | Winter Weather Advisory | LBF | 6 hr |
| Apr 5, 12:59 PM CDT | Wind Advisory | LBF | 6 hr |
| Apr 14, 5:28 PM CDT | Wind Advisory | LBF | 28 hr |
| Apr 22, 3:03 PM CDT | Fire Weather Watch | LBF | 13 hr |
| Apr 23, 4:18 AM CDT | Red Flag Warning | LBF | 16 hr |
| Apr 30, 12:42 AM CDT | Severe Thunderstorm Warning | LBF | 63 min |
| Apr 30, 1:36 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 30, 7:20 AM CDT | Areal Flood Warning | LBF | 5 hr |
| May 8, 2:13 PM CDT | Wind Advisory | LBF | 5 hr |
| May 12, 3:09 PM CDT | Wind Advisory | LBF | 29 hr |
| May 13, 3:29 PM CDT | Frost Advisory | LBF | 17 hr |
| May 19, 3:34 AM CDT | Wind Advisory | LBF | 19 hr |
| Jun 1, 2:55 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 2, 2:03 AM CDT | Areal Flood Advisory | LBF | 3 hr |
| Jun 5, 6:06 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 5, 9:38 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 5, 11:53 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Jun 6, 5:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 6, 5:51 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 6, 9:28 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 7, 1:35 AM CDT | Mesoscale Discussion | SPC | 55 min |
| Jun 14, 5:48 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 14, 7:46 PM CDT | Tornado Watch | SPC | 5 hr |
| Jun 15, 3:34 PM CDT | Tornado Watch | SPC | 8 hr |
| Jun 15, 6:19 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 15, 8:04 PM CDT | Severe Thunderstorm Warning | LBF | 41 min |
| Jun 15, 9:07 PM CDT | Severe Thunderstorm Warning | LBF | 38 min |
| Jun 17, 2:29 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Jun 17, 3:30 PM CDT | Tornado Watch | SPC | 8 hr |
| Jun 17, 5:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 17, 10:34 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jun 18, 11:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 18, 11:55 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 23, 2:39 PM CDT | Mesoscale Discussion | SPC | 111 min |
| Jun 25, 7:30 PM CDT | Severe Thunderstorm Warning | LBF | 30 min |
| Jun 25, 7:59 PM CDT | Severe Thunderstorm Warning | LBF | 31 min |
| Jun 25, 9:36 PM CDT | Flash Flood Watch | LBF | 6 hr |
| Jun 26, 4:50 PM CDT | Tornado Watch | SPC | 7 hr |
| Jun 26, 7:33 PM CDT | Severe Thunderstorm Warning | LBF | 42 min |
| Jun 28, 4:33 PM CDT | Flash Flood Warning | LBF | 3 hr |
| Jul 1, 5:29 PM CDT | Mesoscale Discussion | SPC | 61 min |
| Jul 1, 10:19 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jul 2, 1:07 AM CDT | Mesoscale Discussion | SPC | 53 min |
| Jul 3, 4:54 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jul 3, 9:20 PM CDT | Mesoscale Discussion | SPC | 55 min |
| Jul 7, 5:47 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jul 11, 1:28 AM CDT | Mesoscale Discussion | SPC | 62 min |
| Jul 13, 5:52 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 13, 7:32 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Jul 16, 4:12 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 17, 10:45 AM CDT | Severe Thunderstorm Warning | LBF | 45 min |
| Jul 17, 11:07 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 17, 11:20 AM CDT | Severe Thunderstorm Warning | LBF | 40 min |
| Jul 17, 11:40 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 17, 11:57 AM CDT | Severe Thunderstorm Warning | LBF | 33 min |
| Jul 17, 12:05 PM CDT | Severe Thunderstorm Warning | LBF | 40 min |
| Jul 18, 6:56 AM CDT | River Flood Warning | LBF | 7 hr |
| Jul 20, 3:25 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 20, 6:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 22, 2:16 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Jul 22, 2:55 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 22, 6:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 23, 3:30 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 23, 7:41 PM CDT | Mesoscale Discussion | SPC | 64 min |
| Jul 24, 8:52 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jul 24, 10:24 PM CDT | Severe Thunderstorm Warning | LBF | 66 min |
| Jul 31, 5:39 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 31, 7:43 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 6, 9:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 6, 9:44 PM CDT | Severe Thunderstorm Warning | LBF | 46 min |
| Aug 6, 10:29 PM CDT | Severe Thunderstorm Warning | LBF | 46 min |
| Aug 10, 2:29 AM CDT | Mesoscale Discussion | SPC | 61 min |
| Aug 10, 2:49 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 10, 6:02 AM CDT | Mesoscale Discussion | SPC | 118 min |
| Aug 12, 2:22 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Aug 14, 2:32 PM CDT | Mesoscale Discussion | SPC | 58 min |
| Aug 14, 4:28 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 14, 7:45 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Aug 15, 5:10 PM CDT | Mesoscale Discussion | SPC | 65 min |
| Aug 16, 7:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 18, 6:10 PM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Aug 18, 7:53 PM CDT | Severe Thunderstorm Warning | LBF | 52 min |
| Aug 24, 5:48 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Sep 3, 4:16 AM CDT | Dense Fog Advisory | LBF | 5 hr |
| Sep 5, 1:09 AM CDT | Dense Fog Advisory | LBF | 9 hr |
| Sep 6, 3:58 AM CDT | Dense Fog Advisory | LBF | 3 hr |
| Sep 8, 2:53 PM CDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Sep 8, 7:10 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 30, 3:35 AM CDT | High Wind Watch | LBF | 24 hr |
| Sep 30, 3:57 PM CDT | Wind Advisory | LBF | 49 hr |
| Oct 1, 3:51 AM CDT | High Wind Warning | LBF | 17 hr |
| Oct 2, 1:58 PM CDT | Freeze Warning | LBF | 19 hr |
| Oct 9, 11:20 PM CDT | Mesoscale Discussion | SPC | 4 hr |
| Oct 11, 3:41 AM CDT | Winter Weather Advisory | LBF | 30 hr |
| Oct 12, 3:46 PM CDT | Freezing Rain Advisory | LBF | 12 hr |
| Oct 13, 9:34 AM CDT | Freezing Rain Advisory | LBF | 6 hr |
| Oct 20, 7:07 AM CDT | Dense Fog Advisory | LBF | 5 hr |
| Oct 21, 1:53 PM CDT | Winter Weather Advisory | LBF | 24 hr |
| Oct 27, 4:04 PM CDT | Winter Storm Warning | LBF | 66 hr |
| Oct 29, 3:08 AM CDT | Winter Weather Advisory | LBF | 34 hr |
| Oct 29, 6:57 PM CDT | Mesoscale Discussion | SPC | 4 hr |
| Dec 6, 3:13 AM CST | Winter Weather Advisory | LBF | 15 hr |
| Dec 6, 11:12 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 6, 2:56 PM CST | Winter Storm Watch | LBF | 24 hr |
| Dec 7, 3:18 PM CST | Winter Storm Warning | LBF | 36 hr |
| Dec 8, 3:41 AM CST | Wind Chill Advisory | LBF | 30 hr |
| Dec 9, 3:43 PM CST | Wind Chill Advisory | LBF | 18 hr |
| Dec 21, 4:13 AM CST | Winter Storm Watch | LBF | 11 hr |
| Dec 21, 3:40 PM CST | Winter Storm Warning | LBF | 5 days |
| Dec 24, 4:44 AM CST | Winter Weather Advisory | 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 archive20082010
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.