Alert archive / Nebraska / Dawson County
Weather alerts in Dawson County, Nebraska, 2009
151 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Dawson County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 151
- Warnings
- 35
- Watches
- 20
- Advisories
- 40
- Busiest month
- June36 alerts
- Busiest day
- June 19, 20097 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Dawson County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 26 | 10 | 62% | 14 | 93% | 19 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Hastings, NE: tornado warnings | 20 | 10 | 50% | 17 | 94% | 18 min |
| NWS Hastings, NE: severe thunderstorm warnings | 216 | 135 | 38% | 256 | 88% | 19 min |
| NWS Hastings, NE: flash flood warnings | 5 | 2 | 60% | 5 | 100% | 49 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, 3:49 AM CST | Wind Advisory | GID | 14 hr |
| Jan 11, 2:28 PM CST | Wind Advisory | GID | 24 hr |
| Jan 12, 4:18 AM CST | High Wind Warning | GID | 14 hr |
| Jan 19, 3:31 AM CST | Wind Advisory | GID | 14 hr |
| Jan 24, 3:01 PM CST | Winter Weather Advisory | GID | 36 hr |
| Feb 8, 2:52 PM CST | Wind Advisory | GID | 31 hr |
| Feb 11, 10:22 AM CST | Winter Storm Watch | GID | 26 hr |
| Feb 12, 12:24 PM CST | Winter Storm Warning | GID | 27 hr |
| Feb 13, 6:18 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Feb 20, 3:32 PM CST | Wind Advisory | GID | 12 hr |
| Mar 5, 3:11 AM CST | Red Flag Warning | GID | 16 hr |
| Mar 7, 4:38 AM CST | Winter Weather Advisory | GID | 23 hr |
| Mar 9, 3:31 PM CDT | Winter Weather Advisory | GID | 20 hr |
| Mar 21, 2:14 AM CDT | Dense Fog Advisory | GID | 8 hr |
| Mar 22, 3:08 PM CDT | Wind Advisory | GID | 30 hr |
| Mar 23, 10:13 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Mar 23, 12:37 PM CDT | Severe Thunderstorm Warning | GID | 38 min |
| Mar 24, 4:04 AM CDT | Wind Advisory | GID | 16 hr |
| Mar 30, 3:05 PM CDT | Wind Advisory | GID | 28 hr |
| Apr 2, 3:31 PM CDT | Winter Storm Watch | GID | 36 hr |
| Apr 3, 11:54 AM CDT | Blizzard Watch | GID | 16 hr |
| Apr 4, 3:31 AM CDT | Wind Advisory | GID | 39 hr |
| Apr 4, 3:39 AM CDT | Winter Storm Warning | GID | 24 hr |
| Apr 4, 3:39 AM CDT | Winter Weather Advisory | GID | 31 hr |
| Apr 4, 3:20 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 14, 3:35 PM CDT | Wind Advisory | GID | 29 hr |
| Apr 21, 2:09 PM CDT | Red Flag Warning | GID | 4 hr |
| Apr 26, 1:44 AM CDT | Special Weather Statement | GID | 31 min |
| May 5, 4:20 PM CDT | Special Weather Statement | GID | 25 min |
| May 5, 4:47 PM CDT | Special Weather Statement | GID | 28 min |
| May 5, 5:09 PM CDT | Special Weather Statement | GID | 36 min |
| May 5, 5:47 PM CDT | Severe Thunderstorm Warning | GID | 43 min |
| May 11, 3:32 AM CDT | Dense Fog Advisory | GID | 5 hr |
| May 13, 12:46 AM CDT | Mesoscale Discussion | SPC | 29 min |
| May 13, 1:18 AM CDT | Severe Thunderstorm Warning | GID | 42 min |
| May 13, 1:23 AM CDT | Severe Thunderstorm Warning | GID | 37 min |
| May 13, 1:50 AM CDT | Severe Thunderstorm Warning | GID | 40 min |
| May 15, 3:02 PM CDT | Wind Advisory | GID | 5 hr |
| May 19, 3:23 AM CDT | Wind Advisory | GID | 18 hr |
| May 23, 4:17 PM CDT | Special Weather Statement | GID | 28 min |
| May 25, 12:52 PM CDT | Flash Flood Watch | GID | 13 hr |
| Jun 1, 2:55 PM CDT | Mesoscale Discussion | SPC | 2 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, 12:04 AM CDT | Severe Thunderstorm Warning | GID | 41 min |
| Jun 6, 12:21 AM CDT | Severe Thunderstorm Warning | GID | 24 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 15, 3:34 PM CDT | Tornado Watch | SPC | 8 hr |
| Jun 15, 6:19 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 15, 7:33 PM CDT | Mesoscale Discussion | SPC | 87 min |
| Jun 15, 8:44 PM CDT | Special Weather Statement | GID | 31 min |
| Jun 15, 9:00 PM CDT | Severe Thunderstorm Warning | GID | 25 min |
| Jun 15, 9:17 PM CDT | Severe Thunderstorm Warning | GID | 28 min |
| Jun 15, 9:35 PM CDT | Severe Thunderstorm Warning | GID | 25 min |
| Jun 15, 9:54 PM CDT | Severe Thunderstorm Warning | GID | 13 min |
| Jun 17, 12:52 PM CDT | Tornado Watch | SPC | 8 hr |
| Jun 17, 2:47 PM CDT | Mesoscale Discussion | SPC | 28 min |
| Jun 17, 5:43 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 17, 8:04 PM CDT | Mesoscale Discussion | SPC | 56 min |
| Jun 17, 9:04 PM CDT | Tornado Watch | SPC | 3 hr |
| Jun 18, 1:46 AM CDT | Mesoscale Discussion | SPC | 89 min |
| Jun 18, 11:12 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 18, 11:47 PM CDT | Severe Thunderstorm Warning | GID | 43 min |
| Jun 18, 11:55 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| Jun 19, 12:22 AM CDT | Severe Thunderstorm Warning | GID | 38 min |
| Jun 19, 1:04 AM CDT | Special Weather Statement | GID | 26 min |
| Jun 19, 1:23 AM CDT | Severe Thunderstorm Warning | GID | 52 min |
| Jun 19, 3:35 AM CDT | Areal Flood Advisory | GID | 4 hr |
| Jun 23, 2:39 PM CDT | Mesoscale Discussion | SPC | 111 min |
| Jun 23, 3:28 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 24, 3:36 PM CDT | Mesoscale Discussion | SPC | 114 min |
| Jun 26, 8:19 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 26, 8:28 PM CDT | Special Weather Statement | GID | 32 min |
| Jun 26, 8:43 PM CDT | Severe Thunderstorm Warning | GID | 47 min |
| Jun 26, 9:05 PM CDT | Severe Thunderstorm Watch | SPC | 4 hr |
| 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 12, 11:57 PM CDT | Special Weather Statement | GID | 33 min |
| Jul 13, 12:15 AM CDT | Severe Thunderstorm Warning | GID | 30 min |
| Jul 13, 12:25 AM CDT | Areal Flood Advisory | GID | 3 hr |
| Jul 13, 12:45 AM CDT | Special Weather Statement | GID | 30 min |
| Jul 13, 11:24 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Jul 16, 4:12 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 16, 4:19 AM CDT | Special Weather Statement | GID | 26 min |
| Jul 17, 2:22 AM CDT | Special Weather Statement | GID | 23 min |
| 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, 3:10 PM CDT | Severe Thunderstorm Warning | GID | 50 min |
| Jul 22, 3:51 PM CDT | Severe Thunderstorm Warning | GID | 39 min |
| Jul 22, 4:23 PM CDT | Severe Thunderstorm Warning | GID | 37 min |
| Jul 22, 6:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jul 24, 5:37 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jul 31, 5:39 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 31, 7:43 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 31, 7:55 PM CDT | Special Weather Statement | GID | 35 min |
| Jul 31, 8:02 PM CDT | Severe Thunderstorm Warning | GID | 28 min |
| Jul 31, 8:22 PM CDT | Severe Thunderstorm Warning | GID | 38 min |
| Aug 3, 10:40 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 4, 1:06 AM CDT | Severe Thunderstorm Warning | GID | 54 min |
| Aug 4, 1:10 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 4, 1:56 AM CDT | Severe Thunderstorm Warning | GID | 64 min |
| Aug 4, 11:37 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Aug 5, 2:42 AM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 5, 6:50 AM CDT | Special Weather Statement | GID | 25 min |
| Aug 6, 9:15 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Aug 7, 1:23 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 9, 5:01 AM CDT | Mesoscale Discussion | SPC | 59 min |
| Aug 9, 5:14 AM CDT | Special Weather Statement | GID | 31 min |
| Aug 9, 5:28 AM CDT | Severe Thunderstorm Warning | GID | 32 min |
| Aug 12, 2:22 PM CDT | Mesoscale Discussion | SPC | 83 min |
| Aug 14, 7:45 PM CDT | Mesoscale Discussion | SPC | 60 min |
| Aug 24, 10:23 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Sep 5, 3:51 AM CDT | Dense Fog Advisory | GID | 7 hr |
| Sep 10, 3:30 AM CDT | Dense Fog Advisory | GID | 7 hr |
| Sep 24, 1:23 PM CDT | Special Weather Statement | GID | 37 min |
| Sep 26, 3:00 PM CDT | Wind Advisory | GID | 27 hr |
| Sep 28, 4:02 AM CDT | Frost Advisory | GID | 29 hr |
| Sep 30, 3:22 PM CDT | Wind Advisory | GID | 28 hr |
| Sep 30, 6:01 PM CDT | Mesoscale Discussion | SPC | 89 min |
| Oct 1, 2:46 PM CDT | Wind Advisory | GID | 29 hr |
| Oct 2, 3:00 AM CDT | Freeze Warning | GID | 29 hr |
| Oct 4, 12:53 AM CDT | Freeze Warning | GID | 7 hr |
| Oct 10, 3:29 AM CDT | Winter Weather Advisory | GID | 9 hr |
| Oct 10, 5:56 AM CDT | Mesoscale Discussion | SPC | 5 hr |
| Oct 11, 3:19 PM CDT | Winter Weather Advisory | GID | 19 hr |
| Oct 12, 2:48 PM CDT | Freezing Rain Advisory | GID | 13 hr |
| Oct 13, 9:32 AM CDT | Freezing Rain Advisory | GID | 5 hr |
| Oct 20, 8:00 AM CDT | Dense Fog Advisory | GID | 4 hr |
| Oct 21, 2:34 PM CDT | Winter Weather Advisory | GID | 23 hr |
| Oct 22, 5:25 AM CDT | Mesoscale Discussion | SPC | 6 hr |
| Oct 29, 3:27 PM CDT | Winter Weather Advisory | GID | 21 hr |
| Oct 29, 11:44 PM CDT | Winter Storm Warning | GID | 13 hr |
| Nov 22, 3:35 AM CST | Dense Fog Advisory | GID | 6 hr |
| Nov 22, 7:56 PM CST | Dense Fog Advisory | GID | 15 hr |
| Dec 6, 4:04 AM CST | Winter Storm Watch | GID | 24 hr |
| Dec 6, 4:04 AM CST | Winter Weather Advisory | GID | 17 hr |
| Dec 6, 11:12 AM CST | Mesoscale Discussion | SPC | 4 hr |
| Dec 7, 3:51 AM CST | Winter Storm Warning | GID | 48 hr |
| Dec 8, 9:58 PM CST | Wind Chill Advisory | GID | 13 hr |
| Dec 9, 3:41 PM CST | Wind Chill Advisory | GID | 18 hr |
| Dec 14, 3:23 AM CST | Wind Chill Advisory | GID | 6 hr |
| Dec 21, 3:56 AM CST | Winter Storm Watch | GID | 24 hr |
| Dec 21, 3:38 PM CST | Blizzard Watch | GID | 46 hr |
| Dec 22, 3:49 AM CST | Winter Storm Warning | GID | 48 hr |
| Dec 24, 4:03 AM CST | Winter Weather Advisory | GID | 3 days |
| Dec 24, 9:53 PM CST | Blizzard Warning | GID | 32 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 | 24 |
| Severe Thunderstorm Watch | 10 |
| Tornado Watch | 3 |
| Mesoscale Discussion | 40 |
| Special Weather Statement | 16 |
| Flooding | |
| Flash Flood Watch | 1 |
| Areal Flood Advisory | 2 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 5 |
| Blizzard Watch | 2 |
| Winter Storm Watch | 4 |
| Freezing Rain Advisory | 2 |
| Winter Weather Advisory | 10 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 1 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 15 |
| Fire | |
| Red Flag Warning | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 7 |
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.