Alert archive / Iowa / Dickinson County
Weather alerts in Dickinson County, Iowa, 2014
135 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Dickinson County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 135
- Warnings
- 29
- Watches
- 16
- Advisories
- 58
- Busiest month
- June39 alerts
- Busiest day
- June 16, 201412 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 Dickinson County in 2014 had a tornado report inside them.
Dickinson County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 8 | 6 | 25% | 11 | 73% | 14 min |
| Flash flood warnings | 3 | 0 | 100% | 1 | 0% |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Sioux Falls, SD: tornado warnings | 46 | 22 | 52% | 52 | 85% | 19 min |
| NWS Sioux Falls, SD: severe thunderstorm warnings | 216 | 124 | 43% | 250 | 85% | 17 min |
| NWS Sioux Falls, SD: flash flood warnings | 39 | 17 | 56% | 24 | 92% | 112 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 |
|---|---|---|---|
| Dec 31, 8:23 PM CST | Wind Chill Advisory | FSD | 16 hr |
| Jan 1, 3:09 PM CST | Wind Chill Advisory | FSD | 21 hr |
| Jan 2, 3:57 PM CST | Wind Chill Advisory | FSD | 12 hr |
| Jan 2, 3:57 PM CST | Winter Weather Advisory | FSD | 41 hr |
| Jan 3, 3:38 PM CST | Wind Chill Watch | FSD | 12 hr |
| Jan 4, 3:34 AM CST | Wind Chill Warning | FSD | 72 hr |
| Jan 4, 3:02 PM CST | Wind Chill Advisory | FSD | 19 hr |
| Jan 7, 3:13 AM CST | Wind Chill Advisory | FSD | 3 hr |
| Jan 13, 3:53 AM CST | Wind Advisory | FSD | 37 hr |
| Jan 14, 3:16 PM CST | High Wind Watch | FSD | 24 hr |
| Jan 15, 2:50 PM CST | Blizzard Warning | FSD | 33 hr |
| Jan 15, 2:50 PM CST | High Wind Warning | FSD | 30 hr |
| Jan 16, 3:11 PM CST | Wind Chill Advisory | FSD | 20 hr |
| Jan 17, 4:21 AM CST | Winter Weather Advisory | FSD | 35 hr |
| Jan 20, 3:43 AM CST | Wind Chill Advisory | FSD | 28 hr |
| Jan 21, 3:26 PM CST | Wind Chill Advisory | FSD | 49 hr |
| Jan 21, 3:26 PM CST | Winter Weather Advisory | FSD | 24 hr |
| Jan 22, 3:27 PM CST | Wind Chill Warning | FSD | 21 hr |
| Jan 24, 3:13 PM CST | Blizzard Watch | FSD | 23 hr |
| Jan 25, 2:42 PM CST | Blizzard Warning | FSD | 33 hr |
| Jan 26, 3:27 AM CST | Wind Chill Warning | FSD | 56 hr |
| Feb 1, 2:43 PM CST | Wind Chill Advisory | FSD | 18 hr |
| Feb 4, 3:40 AM CST | Wind Chill Advisory | FSD | 3 days |
| Feb 8, 2:38 PM CST | Wind Chill Advisory | FSD | 21 hr |
| Feb 9, 3:45 AM CST | Wind Chill Advisory | FSD | 29 hr |
| Feb 10, 5:53 PM CST | Wind Chill Advisory | FSD | 15 hr |
| Feb 16, 2:39 PM CST | Winter Weather Advisory | FSD | 18 hr |
| Feb 17, 3:29 AM CST | Mesoscale Discussion | SPC | 3 hr |
| Feb 19, 4:37 AM CST | Winter Weather Advisory | FSD | 43 hr |
| Feb 20, 11:20 AM CST | Mesoscale Discussion | SPC | 6 hr |
| Feb 20, 7:44 PM CST | Blizzard Warning | FSD | 8 hr |
| Feb 24, 3:53 AM CST | Wind Chill Advisory | FSD | 30 hr |
| Feb 25, 3:50 AM CST | Wind Chill Advisory | FSD | 29 hr |
| Feb 25, 4:25 PM CST | Winter Weather Advisory | FSD | 28 hr |
| Feb 26, 4:07 AM CST | Wind Chill Advisory | FSD | 32 hr |
| Feb 27, 3:25 AM CST | Wind Chill Advisory | FSD | 24 hr |
| Feb 28, 3:54 AM CST | Wind Chill Advisory | FSD | 3 days |
| Mar 1, 3:30 PM CST | Wind Chill Warning | FSD | 21 hr |
| Mar 1, 3:30 PM CST | Wind Chill Advisory | FSD | 43 hr |
| Mar 26, 3:55 AM CDT | Wind Advisory | FSD | 18 hr |
| Mar 29, 4:10 PM CDT | Special Weather Statement | MFL | 50 min |
| Mar 30, 3:52 PM CDT | Wind Advisory | FSD | 39 hr |
| Apr 1, 3:54 PM CDT | Winter Storm Watch | FSD | 24 hr |
| Apr 2, 3:42 PM CDT | Winter Storm Warning | FSD | 39 hr |
| Apr 2, 3:42 PM CDT | Winter Weather Advisory | FSD | 39 hr |
| Apr 22, 3:53 PM CDT | Wind Advisory | FSD | 28 hr |
| Apr 26, 12:14 PM CDT | Wind Advisory | FSD | 8 hr |
| Apr 27, 3:31 AM CDT | Wind Advisory | FSD | 11 hr |
| May 7, 2:28 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 7, 5:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| May 7, 9:44 PM CDT | Mesoscale Discussion | SPC | 91 min |
| May 8, 3:46 AM CDT | Mesoscale Discussion | SPC | 119 min |
| May 8, 12:23 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 8, 1:46 PM CDT | Tornado Watch | SPC | 7 hr |
| May 8, 5:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| May 10, 5:07 PM CDT | Mesoscale Discussion | SPC | 83 min |
| May 11, 9:31 PM CDT | Mesoscale Discussion | SPC | 59 min |
| May 13, 2:16 PM CDT | Frost Advisory | FSD | 18 hr |
| May 14, 3:55 PM CDT | Frost Advisory | FSD | 16 hr |
| May 15, 3:08 PM CDT | Frost Advisory | FSD | 17 hr |
| May 16, 3:05 PM CDT | Frost Advisory | FSD | 17 hr |
| May 31, 1:18 PM CDT | Mesoscale Discussion | SPC | 117 min |
| Jun 1, 1:54 AM CDT | Flash Flood Watch | FSD | 19 hr |
| Jun 1, 11:33 AM CDT | Flash Flood Warning | FSD | 3 hr |
| Jun 1, 1:28 PM CDT | Severe Thunderstorm Watch | SPC | 10 hr |
| Jun 1, 2:34 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 5, 1:55 PM CDT | Mesoscale Discussion | SPC | 95 min |
| Jun 5, 4:06 PM CDT | Severe Thunderstorm Warning | FSD | 39 min |
| Jun 5, 4:35 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Jun 5, 4:40 PM CDT | Severe Thunderstorm Warning | FSD | 20 min |
| Jun 5, 4:55 PM CDT | Tornado Watch | SPC | 4 hr |
| Jun 5, 8:24 PM CDT | Mesoscale Discussion | SPC | 96 min |
| Jun 14, 2:51 PM CDT | Flash Flood Watch | FSD | 13 hr |
| Jun 16, 3:39 AM CDT | Flash Flood Watch | FSD | 20 hr |
| Jun 16, 10:19 AM CDT | Mesoscale Discussion | SPC | 116 min |
| Jun 16, 11:07 AM CDT | Flash Flood Warning | FSD | 9 hr |
| Jun 16, 12:25 PM CDT | Tornado Watch | SPC | 8 hr |
| Jun 16, 2:54 PM CDT | Tornado Warning | FSD | 21 min |
| Jun 16, 3:11 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 16, 4:10 PM CDT | Severe Thunderstorm Warning | FSD | 35 min |
| Jun 16, 4:39 PM CDT | Severe Thunderstorm Warning | FSD | 36 min |
| Jun 16, 4:58 PM CDT | Severe Thunderstorm Warning | FSD | 47 min |
| Jun 16, 5:11 PM CDT | Flash Flood Warning | FSD | 3 hr |
| Jun 16, 5:37 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 16, 5:57 PM CDT | Severe Thunderstorm Warning | FSD | 48 min |
| Jun 16, 7:25 PM CDT | Areal Flood Warning | FSD | 48 hr |
| Jun 16, 8:18 PM CDT | River Flood Warning | FSD | 3 days |
| Jun 16, 11:31 PM CDT | River Flood Warning | FSD | 10 days |
| Jun 17, 6:48 PM CDT | Tornado Watch | SPC | 6 hr |
| Jun 17, 10:18 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Jun 17, 11:23 PM CDT | Mesoscale Discussion | SPC | 37 min |
| Jun 17, 11:39 PM CDT | Tornado Watch | SPC | 5 hr |
| Jun 18, 1:52 AM CDT | Mesoscale Discussion | SPC | 83 min |
| Jun 18, 1:01 PM CDT | River Flood Warning | FSD | 12 hr |
| Jun 18, 8:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Jun 19, 9:49 AM CDT | River Flood Warning | FSD | 6 days |
| Jun 19, 1:28 PM CDT | Tornado Warning | FSD | 32 min |
| Jun 21, 11:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Jun 22, 3:32 AM CDT | Flash Flood Watch | FSD | 12 hr |
| Jun 26, 2:54 PM CDT | Mesoscale Discussion | SPC | 3 hr |
| Jun 28, 1:12 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 20, 3:41 PM CDT | Heat Advisory | FSD | 29 hr |
| Aug 4, 2:06 PM CDT | Mesoscale Discussion | SPC | 84 min |
| Aug 16, 4:46 AM CDT | Dense Fog Advisory | FSD | 4 hr |
| Aug 18, 2:57 PM CDT | Mesoscale Discussion | SPC | 93 min |
| Aug 18, 6:49 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Aug 21, 3:50 AM CDT | Severe Thunderstorm Warning | FSD | 40 min |
| Aug 21, 3:58 AM CDT | Mesoscale Discussion | SPC | 92 min |
| Aug 31, 2:20 PM CDT | Mesoscale Discussion | SPC | 85 min |
| Aug 31, 3:31 PM CDT | Tornado Watch | SPC | 5 hr |
| Sep 9, 4:13 AM CDT | Dense Fog Advisory | FSD | 7 hr |
| Sep 12, 2:50 PM CDT | Frost Advisory | FSD | 18 hr |
| Sep 19, 6:19 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 19, 9:42 PM CDT | Severe Thunderstorm Warning | FSD | 33 min |
| Sep 19, 10:34 PM CDT | Mesoscale Discussion | SPC | 116 min |
| Oct 2, 2:07 PM CDT | Wind Advisory | FSD | 29 hr |
| Oct 3, 3:57 AM CDT | Freeze Warning | FSD | 29 hr |
| Oct 9, 3:17 PM CDT | Frost Advisory | FSD | 18 hr |
| Oct 10, 2:34 PM CDT | Freeze Warning | FSD | 18 hr |
| Oct 23, 1:21 AM CDT | Dense Fog Advisory | FSD | 9 hr |
| Nov 7, 3:48 AM CST | Wind Advisory | FSD | 24 hr |
| Nov 10, 2:36 PM CST | Wind Advisory | FSD | 13 hr |
| Nov 14, 3:53 AM CST | Winter Weather Advisory | FSD | 44 hr |
| Nov 15, 3:24 PM CST | Winter Weather Advisory | FSD | 30 hr |
| Nov 16, 9:36 PM CST | Winter Weather Advisory | FSD | 20 hr |
| Nov 17, 3:26 PM CST | Wind Chill Advisory | FSD | 12 hr |
| Nov 22, 4:56 AM CST | Dense Fog Advisory | FSD | 6 hr |
| Nov 23, 3:22 PM CST | Wind Advisory | FSD | 27 hr |
| Nov 25, 2:53 PM CST | Winter Weather Advisory | FSD | 18 hr |
| Dec 5, 7:55 AM CST | Dense Fog Advisory | FSD | 5 hr |
| Dec 13, 2:29 PM CST | Dense Fog Advisory | FSD | 17 hr |
| Dec 15, 6:20 PM CST | Wind Advisory | FSD | 10 hr |
| Dec 26, 3:06 AM CST | Winter Weather Advisory | FSD | 30 hr |
| Dec 29, 3:09 AM CST | Wind Chill Advisory | FSD | 33 hr |
| Dec 30, 1:54 PM CST | Wind Chill Advisory | FSD | 19 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 archive20132015
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.