Alert archive / Nebraska / Polk County
Weather alerts in Polk County, Nebraska, 2023
121 weather alerts in 2023, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Polk County and its neighbors
Each county as a circle sized by its count in 2023. Tap one for its archive.
- Alerts
- 121
- Warnings
- 36
- Watches
- 18
- Advisories
- 26
- Busiest month
- July29 alerts
- Busiest day
- May 12, 20237 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 2 tornado warnings covering Polk County in 2023 had a tornado report inside them.
Polk County, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 15 | 8 | 47% | 12 | 92% | 20 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2023
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Hastings, NE: tornado warnings | 31 | 4 | 87% | 13 | 38% | 9 min |
| NWS Hastings, NE: severe thunderstorm warnings | 323 | 166 | 49% | 516 | 82% | 23 min |
| NWS Hastings, NE: flash flood warnings | 10 | 1 | 90% | 3 | 33% | 38 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 1, 2:17 PM CST | Winter Storm Warning | GID | 25 hr |
| Jan 1, 2:17 PM CST | Winter Weather Advisory | GID | 52 hr |
| Jan 2, 3:25 PM CST | Ice Storm Warning | GID | 14 hr |
| Jan 12, 9:26 PM CST | Dense Fog Advisory | GID | 15 hr |
| Jan 15, 2:29 PM CST | Winter Storm Watch | GID | 48 hr |
| Jan 16, 2:10 PM CST | Winter Storm Warning | GID | 64 hr |
| Jan 22, 9:46 PM CST | Dense Fog Advisory | GID | 10 hr |
| Jan 27, 2:05 PM CST | Wind Chill Advisory | GID | 45 hr |
| Feb 15, 2:17 AM CST | Winter Weather Advisory | GID | 34 hr |
| Feb 16, 2:00 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 21, 3:10 AM CST | Winter Weather Advisory | GID | 48 hr |
| Feb 21, 2:23 PM CST | Wind Chill Advisory | GID | 46 hr |
| Mar 6, 1:48 AM CST | Dense Fog Advisory | GID | 7 hr |
| Mar 8, 1:57 PM CST | Winter Weather Advisory | GID | 24 hr |
| Mar 10, 2:44 PM CST | Winter Weather Advisory | GID | 20 hr |
| Mar 15, 3:55 AM CDT | Winter Storm Watch | GID | 10 hr |
| Mar 15, 3:55 AM CDT | Winter Weather Advisory | GID | 34 hr |
| Mar 19, 2:08 AM CDT | Red Flag Warning | GID | 19 hr |
| Mar 25, 3:41 PM CDT | Winter Weather Advisory | GID | 17 hr |
| Mar 30, 7:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 6, 2:40 PM CDT | Red Flag Warning | GID | 29 hr |
| Apr 7, 3:56 AM CDT | Fire Weather Watch | GID | 11 hr |
| Apr 7, 2:55 PM CDT | Red Flag Warning | GID | 30 hr |
| Apr 10, 2:54 AM CDT | Fire Weather Watch | GID | 12 hr |
| Apr 10, 2:25 PM CDT | Red Flag Warning | GID | 30 hr |
| Apr 11, 3:04 PM CDT | Red Flag Warning | GID | 30 hr |
| Apr 12, 3:03 AM CDT | Fire Weather Watch | GID | 10 hr |
| Apr 12, 1:04 PM CDT | Red Flag Warning | GID | 32 hr |
| Apr 15, 2:46 PM CDT | Red Flag Warning | GID | 29 hr |
| Apr 18, 9:45 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Apr 19, 11:53 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Apr 21, 2:33 AM CDT | Freeze Watch | GID | 24 hr |
| Apr 21, 2:33 AM CDT | Freeze Warning | GID | 30 hr |
| Apr 22, 2:33 AM CDT | Freeze Warning | GID | 30 hr |
| Apr 28, 3:02 AM CDT | Frost Advisory | GID | 29 hr |
| Apr 30, 3:08 AM CDT | Freeze Warning | GID | 29 hr |
| May 1, 2:54 AM CDT | Freeze Warning | GID | 29 hr |
| May 6, 12:52 AM CDT | Severe Thunderstorm Warning | GID | 38 min |
| May 6, 1:30 AM CDT | Special Weather Statement | GID | 45 min |
| May 6, 5:32 PM CDT | Mesoscale Discussion | SPC | 88 min |
| May 7, 4:51 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 7, 6:02 PM CDT | Mesoscale Discussion | SPC | 88 min |
| May 7, 6:45 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| May 12, 12:17 PM CDT | Mesoscale Discussion | SPC | 118 min |
| May 12, 1:09 PM CDT | Tornado Watch | SPC | 8 hr |
| May 12, 2:54 PM CDT | Tornado Warning | GID | 36 min |
| May 12, 3:14 PM CDT | Special Weather Statement | GID | 16 min |
| May 12, 3:21 PM CDT | Severe Thunderstorm Warning | GID | 24 min |
| May 12, 3:23 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 12, 3:26 PM CDT | Tornado Warning | GID | 34 min |
| May 25, 4:28 PM CDT | Special Weather Statement | GID | 17 min |
| May 29, 10:09 PM CDT | Special Weather Statement | GID | 51 min |
| Jun 2, 4:45 PM CDT | Special Weather Statement | GID | 45 min |
| Jun 3, 5:26 AM CDT | Dense Fog Advisory | GID | 3 hr |
| Jun 16, 2:57 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 16, 5:59 PM CDT | Special Weather Statement | GID | 31 min |
| Jun 16, 6:27 PM CDT | Special Weather Statement | GID | 33 min |
| Jun 23, 10:19 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jun 23, 10:38 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 24, 1:51 AM CDT | Mesoscale Discussion | SPC | 84 min |
| Jun 24, 4:29 AM CDT | Severe Thunderstorm Warning | GID | 20 min |
| Jul 4, 2:17 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 4, 3:29 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 4, 5:28 PM CDT | Special Weather Statement | GID | 47 min |
| Jul 4, 5:38 PM CDT | Severe Thunderstorm Warning | GID | 52 min |
| Jul 4, 6:07 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Jul 4, 6:23 PM CDT | Severe Thunderstorm Warning | GID | 37 min |
| Jul 4, 6:58 PM CDT | Severe Thunderstorm Warning | GID | 17 min |
| Jul 4, 7:31 PM CDT | Areal Flood Advisory | GID | 3 hr |
| Jul 7, 4:23 AM CDT | Special Weather Statement | GID | 37 min |
| Jul 7, 7:23 AM CDT | Special Weather Statement | GID | 37 min |
| Jul 10, 2:09 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 10, 3:12 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 10, 8:16 PM CDT | Special Weather Statement | GID | 29 min |
| Jul 10, 8:29 PM CDT | Severe Thunderstorm Warning | GID | 31 min |
| Jul 10, 9:00 PM CDT | Severe Thunderstorm Warning | GID | 30 min |
| Jul 12, 4:41 AM CDT | Mesoscale Discussion | SPC | 94 min |
| Jul 14, 8:13 AM CDT | Special Weather Statement | GID | 32 min |
| Jul 16, 4:04 AM CDT | Severe Thunderstorm Warning | GID | 26 min |
| Jul 17, 11:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 18, 2:12 AM CDT | Special Weather Statement | GID | 48 min |
| Jul 18, 8:40 AM CDT | Special Weather Statement | GID | 35 min |
| Jul 23, 2:40 PM CDT | Heat Advisory | GID | 5 days |
| Jul 27, 3:12 AM CDT | Excessive Heat Warning | GID | 60 hr |
| Jul 28, 3:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jul 29, 3:59 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 29, 6:09 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 29, 6:10 AM CDT | Severe Thunderstorm Warning | GID | 65 min |
| Jul 29, 7:14 AM CDT | Severe Thunderstorm Warning | GID | 46 min |
| Jul 30, 3:26 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 2, 2:38 AM CDT | Mesoscale Discussion | SPC | 3 hr |
| Aug 4, 3:19 AM CDT | Dense Fog Advisory | GID | 6 hr |
| Aug 17, 2:08 PM CDT | Excessive Heat Watch | GID | 24 hr |
| Aug 18, 2:29 PM CDT | Excessive Heat Warning | GID | 7 days |
| Aug 18, 2:29 PM CDT | Heat Advisory | GID | 30 hr |
| Aug 19, 3:56 PM CDT | Heat Advisory | GID | 5 days |
| Sep 7, 11:11 PM CDT | Special Weather Statement | GID | 49 min |
| Sep 23, 8:21 AM CDT | Severe Thunderstorm Warning | GID | 39 min |
| Oct 3, 4:45 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Oct 3, 5:03 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Oct 3, 6:09 PM CDT | Severe Thunderstorm Warning | GID | 51 min |
| Oct 3, 6:22 PM CDT | Special Weather Statement | GID | 38 min |
| Oct 3, 6:35 PM CDT | Severe Thunderstorm Warning | GID | 40 min |
| Oct 3, 6:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Oct 5, 2:20 AM CDT | Freeze Watch | GID | 25 hr |
| Oct 6, 2:55 AM CDT | Freeze Warning | GID | 30 hr |
| Oct 11, 10:36 PM CDT | Special Weather Statement | GID | 39 min |
| Oct 11, 10:59 PM CDT | Severe Thunderstorm Warning | GID | 20 min |
| Oct 12, 1:12 PM CDT | Tornado Watch | SPC | 6 hr |
| Oct 12, 5:11 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Oct 15, 2:29 PM CDT | Frost Advisory | GID | 19 hr |
| Oct 25, 4:25 PM CDT | Dense Fog Advisory | GID | 14 hr |
| Oct 27, 3:47 AM CDT | Freeze Warning | GID | 30 hr |
| Dec 20, 5:09 AM CST | Dense Fog Advisory | GID | 5 hr |
| Dec 20, 10:50 PM CST | Dense Fog Advisory | GID | 20 hr |
| Dec 21, 7:08 PM CST | Dense Fog Advisory | GID | 15 hr |
| Dec 23, 1:24 PM CST | Winter Storm Watch | GID | 25 hr |
| Dec 24, 3:07 AM CST | Blizzard Warning | GID | 39 hr |
| Dec 24, 3:07 AM CST | Winter Weather Advisory | GID | 71 hr |
| Dec 25, 7:00 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Dec 28, 4:15 AM CST | Dense Fog Advisory | GID | 8 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 archive20222024
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.