Alert archive / Nebraska / Dawes County
Weather alerts in Dawes County, Nebraska, 2009
134 weather alerts in 2009, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Dawes County and its neighbors
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Alerts
- 134
- Warnings
- 39
- Watches
- 28
- Advisories
- 25
- Busiest month
- June33 alerts
- Busiest day
- July 3, 20098 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Dawes County, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 23 | 11 | 52% | 16 | 81% | 18 min |
| Flash flood warnings | 3 | 1 | 67% | 1 | 100% | 13 min |
Each office's whole area, 2009
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Cheyenne, WY: tornado warnings | 28 | 10 | 64% | 26 | 69% | 18 min |
| NWS Cheyenne, WY: severe thunderstorm warnings | 186 | 86 | 54% | 227 | 66% | 20 min |
| NWS Cheyenne, WY: flash flood warnings | 25 | 14 | 44% | 26 | 69% | 70 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 7, 9:14 AM MST | Wind Advisory | CYS | 9 hr |
| Jan 7, 1:49 PM MST | High Wind Watch | CYS | 4 hr |
| Jan 8, 1:15 PM MST | High Wind Watch | CYS | 15 hr |
| Jan 9, 4:32 AM MST | Wind Advisory | CYS | 12 hr |
| Jan 11, 3:38 PM MST | Wind Advisory | CYS | 13 hr |
| Jan 12, 4:59 AM MST | High Wind Warning | CYS | 8 hr |
| Jan 17, 3:48 AM MST | Wind Advisory | CYS | 11 hr |
| Jan 18, 4:00 AM MST | Wind Advisory | CYS | 8 hr |
| Jan 18, 12:24 PM MST | High Wind Warning | CYS | 5 hr |
| Jan 19, 4:47 AM MST | Wind Advisory | CYS | 7 hr |
| Jan 19, 12:11 PM MST | High Wind Warning | CYS | 6 hr |
| Jan 24, 1:41 AM MST | Winter Weather Advisory | CYS | 61 hr |
| Feb 9, 12:20 PM MST | Wind Advisory | CYS | 7 hr |
| Feb 12, 1:55 AM MST | Winter Weather Advisory | CYS | 34 hr |
| Mar 5, 11:12 AM MST | Wind Advisory | CYS | 7 hr |
| Mar 21, 2:35 PM MDT | Winter Storm Watch | CYS | 15 hr |
| Mar 21, 5:23 PM MDT | Mesoscale Discussion | SPC | 97 min |
| Mar 22, 6:03 AM MDT | Blizzard Warning | CYS | 48 hr |
| Mar 23, 1:50 PM MDT | Winter Weather Advisory | CYS | 27 hr |
| Mar 28, 5:01 AM MDT | Winter Storm Watch | CYS | 31 hr |
| Mar 29, 5:24 AM MDT | Winter Weather Advisory | CYS | 41 hr |
| Mar 29, 11:57 AM MDT | Winter Storm Warning | CYS | 27 hr |
| Apr 2, 4:10 AM MDT | Winter Storm Watch | CYS | 33 hr |
| Apr 3, 4:00 AM MDT | Winter Storm Warning | CYS | 41 hr |
| Apr 4, 4:57 AM MDT | Mesoscale Discussion | SPC | 4 hr |
| Apr 4, 8:34 AM MDT | Blizzard Warning | CYS | 18 hr |
| Apr 11, 3:57 AM MDT | Wind Advisory | CYS | 14 hr |
| Apr 27, 2:11 PM MDT | Wind Advisory | CYS | 28 hr |
| May 12, 2:32 PM MDT | Wind Advisory | CYS | 28 hr |
| May 20, 4:21 PM MDT | Severe Thunderstorm Warning | CYS | 37 min |
| May 22, 6:29 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 24, 6:31 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Jun 5, 2:48 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 5, 4:38 PM MDT | Severe Thunderstorm Warning | CYS | 52 min |
| Jun 5, 5:37 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jun 5, 11:00 PM MDT | Severe Thunderstorm Warning | CYS | 60 min |
| Jun 13, 1:56 PM MDT | Tornado Watch | SPC | 9 hr |
| Jun 13, 4:26 PM MDT | Mesoscale Discussion | SPC | 64 min |
| Jun 13, 5:21 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 13, 6:42 PM MDT | Mesoscale Discussion | SPC | 63 min |
| Jun 13, 7:18 PM MDT | Severe Thunderstorm Warning | CYS | 30 min |
| Jun 13, 7:58 PM MDT | Mesoscale Discussion | SPC | 62 min |
| Jun 14, 1:06 PM MDT | Mesoscale Discussion | SPC | 54 min |
| Jun 14, 1:50 PM MDT | Tornado Watch | SPC | 7 hr |
| Jun 17, 4:02 PM MDT | Mesoscale Discussion | SPC | 88 min |
| Jun 17, 4:26 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Jun 17, 9:13 PM MDT | Severe Thunderstorm Warning | CYS | 47 min |
| Jun 18, 5:35 PM MDT | Severe Thunderstorm Warning | CYS | 40 min |
| Jun 18, 5:52 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Jun 18, 6:16 PM MDT | Severe Thunderstorm Warning | CYS | 44 min |
| Jun 22, 10:24 PM MDT | Severe Thunderstorm Warning | CYS | 37 min |
| Jun 23, 12:07 AM MDT | Mesoscale Discussion | SPC | 53 min |
| Jun 23, 1:59 AM MDT | Severe Thunderstorm Warning | CYS | 16 min |
| Jun 23, 2:17 AM MDT | Mesoscale Discussion | SPC | 88 min |
| Jun 23, 2:18 PM MDT | Mesoscale Discussion | SPC | 87 min |
| Jun 23, 2:51 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 25, 1:30 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 25, 4:22 PM MDT | Mesoscale Discussion | SPC | 53 min |
| Jun 25, 5:50 PM MDT | Mesoscale Discussion | SPC | 55 min |
| Jun 26, 2:23 PM MDT | Mesoscale Discussion | SPC | 67 min |
| Jun 26, 2:38 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 29, 3:36 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Jun 29, 8:23 PM MDT | Severe Thunderstorm Warning | CYS | 52 min |
| Jun 29, 9:34 PM MDT | Flash Flood Warning | CYS | 68 min |
| Jun 30, 5:40 PM MDT | Mesoscale Discussion | SPC | 65 min |
| Jul 1, 12:33 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Jul 1, 4:29 PM MDT | Mesoscale Discussion | SPC | 61 min |
| Jul 1, 6:38 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 1, 9:19 PM MDT | Mesoscale Discussion | SPC | 56 min |
| Jul 2, 2:17 PM MDT | Mesoscale Discussion | SPC | 88 min |
| Jul 2, 6:29 PM MDT | Mesoscale Discussion | SPC | 61 min |
| Jul 2, 6:49 PM MDT | Severe Thunderstorm Warning | CYS | 56 min |
| Jul 2, 8:14 PM MDT | Severe Thunderstorm Warning | CYS | 38 min |
| Jul 2, 8:17 PM MDT | Flash Flood Warning | CYS | 3 hr |
| Jul 2, 9:00 PM MDT | Flash Flood Warning | CYS | 3 hr |
| Jul 2, 9:08 PM MDT | Mesoscale Discussion | SPC | 97 min |
| Jul 2, 9:40 PM MDT | Severe Thunderstorm Warning | CYS | 51 min |
| Jul 3, 2:48 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 6, 2:07 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 6, 5:35 PM MDT | Mesoscale Discussion | SPC | 55 min |
| Jul 9, 8:59 PM MDT | Mesoscale Discussion | SPC | 91 min |
| Jul 10, 5:20 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Jul 10, 6:38 PM MDT | Severe Thunderstorm Warning | CYS | 41 min |
| Jul 10, 7:10 PM MDT | Severe Thunderstorm Warning | CYS | 42 min |
| Jul 11, 12:08 AM MDT | Severe Thunderstorm Warning | CYS | 49 min |
| Jul 11, 12:28 AM MDT | Mesoscale Discussion | SPC | 62 min |
| Jul 11, 3:56 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jul 13, 1:45 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 13, 6:45 PM MDT | Severe Thunderstorm Warning | CYS | 41 min |
| Jul 19, 2:22 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Jul 20, 2:25 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jul 20, 5:01 PM MDT | Mesoscale Discussion | SPC | 89 min |
| Aug 3, 6:46 PM MDT | Mesoscale Discussion | SPC | 119 min |
| Aug 3, 7:37 PM MDT | Severe Thunderstorm Warning | CYS | 52 min |
| Aug 4, 3:37 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 4, 5:19 PM MDT | Mesoscale Discussion | SPC | 56 min |
| Aug 4, 6:40 PM MDT | Mesoscale Discussion | SPC | 65 min |
| Aug 4, 9:07 PM MDT | Severe Thunderstorm Warning | CYS | 53 min |
| Aug 4, 9:50 PM MDT | Severe Thunderstorm Warning | CYS | 42 min |
| Aug 5, 3:51 PM MDT | Mesoscale Discussion | SPC | 84 min |
| Aug 6, 4:07 PM MDT | Tornado Watch | SPC | 4 hr |
| Aug 6, 7:34 PM MDT | Mesoscale Discussion | SPC | 86 min |
| Aug 7, 5:37 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Aug 7, 10:19 PM MDT | Severe Thunderstorm Warning | CYS | 37 min |
| Aug 8, 2:18 AM MDT | Mesoscale Discussion | SPC | 117 min |
| Aug 8, 7:29 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 15, 2:08 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 15, 4:13 PM MDT | Severe Thunderstorm Warning | CYS | 62 min |
| Aug 18, 2:35 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Aug 18, 4:50 PM MDT | Severe Thunderstorm Warning | CYS | 25 min |
| Sep 20, 10:06 AM MDT | Wind Advisory | CYS | 29 hr |
| Sep 27, 3:13 AM MDT | Freeze Watch | CYS | 12 hr |
| Sep 27, 8:17 AM MDT | Wind Advisory | CYS | 6 hr |
| Sep 27, 2:45 PM MDT | Freeze Warning | CYS | 17 hr |
| Sep 30, 5:18 AM MDT | High Wind Watch | CYS | 22 hr |
| Oct 1, 3:36 AM MDT | High Wind Warning | CYS | 14 hr |
| Oct 2, 4:00 AM MDT | Wind Advisory | CYS | 14 hr |
| Oct 10, 2:26 PM MDT | Winter Weather Advisory | CYS | 28 hr |
| Oct 26, 4:30 PM MDT | Winter Storm Watch | CYS | 36 hr |
| Oct 27, 5:19 AM MDT | Winter Storm Warning | CYS | 66 hr |
| Oct 28, 12:13 PM MDT | Mesoscale Discussion | SPC | 6 hr |
| Oct 28, 9:56 PM MDT | Mesoscale Discussion | SPC | 4 hr |
| Oct 29, 9:30 PM MDT | Winter Weather Advisory | CYS | 21 hr |
| Dec 7, 2:04 AM MST | Winter Storm Watch | CYS | 12 hr |
| Dec 7, 1:45 PM MST | Winter Weather Advisory | CYS | 23 hr |
| Dec 8, 2:49 PM MST | Wind Chill Advisory | CYS | 20 hr |
| Dec 9, 2:44 PM MST | Wind Chill Advisory | CYS | 18 hr |
| Dec 21, 5:07 AM MST | Winter Storm Watch | CYS | 23 hr |
| Dec 22, 4:22 AM MST | Winter Storm Warning | CYS | 31 hr |
| Dec 22, 4:22 AM MST | Winter Weather Advisory | CYS | 46 hr |
| Dec 24, 1:34 PM MST | Wind Chill Advisory | CYS | 15 hr |
| Dec 24, 1:34 PM MST | Winter Storm Watch | CYS | 15 hr |
| Dec 25, 4:22 AM MST | Winter Storm Warning | CYS | 37 hr |
| Dec 25, 1:13 PM MST | Blizzard Warning | CYS | 16 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 | 23 |
| Severe Thunderstorm Watch | 13 |
| Tornado Watch | 4 |
| Mesoscale Discussion | 42 |
| Flooding | |
| Flash Flood Warning | 3 |
| Winter | |
| Blizzard Warning | 3 |
| Winter Storm Warning | 5 |
| Winter Storm Watch | 7 |
| Winter Weather Advisory | 8 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Wind Chill Advisory | 3 |
| Wind and dust | |
| High Wind Warning | 4 |
| High Wind Watch | 3 |
| Wind Advisory | 14 |
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.