Alert archive / South Dakota / Sully County
Weather alerts in Sully County, South Dakota, 2014
102 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Sully County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 102
- Warnings
- 27
- Watches
- 10
- Advisories
- 47
- Busiest month
- June27 alerts
- Busiest day
- June 18, 20147 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Sully County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 18 | 13 | 28% | 4 | 100% | 19 min |
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Aberdeen, SD: tornado warnings | 15 | 8 | 47% | 15 | 73% | 12 min |
| NWS Aberdeen, SD: severe thunderstorm warnings | 141 | 78 | 45% | 133 | 75% | 19 min |
| NWS Aberdeen, SD: flash flood warnings | 31 | 22 | 29% | 35 | 97% | 104 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 3, 2:03 PM CST | Wind Advisory | ABR | 14 hr |
| Jan 4, 4:12 AM CST | Wind Chill Warning | ABR | 72 hr |
| Jan 13, 3:36 AM CST | Wind Advisory | ABR | 31 hr |
| Jan 14, 2:58 PM CST | High Wind Watch | ABR | 13 hr |
| Jan 15, 3:52 AM CST | High Wind Warning | ABR | 38 hr |
| Jan 17, 10:27 AM CST | Wind Advisory | ABR | 25 hr |
| Jan 19, 12:30 PM CST | Wind Advisory | ABR | 3 hr |
| Jan 20, 3:59 AM CST | Wind Advisory | ABR | 5 hr |
| Jan 20, 9:07 AM CST | High Wind Warning | ABR | 6 hr |
| Jan 21, 6:12 PM CST | Wind Advisory | ABR | 116 min |
| Jan 24, 4:22 AM CST | Wind Advisory | ABR | 19 hr |
| Jan 25, 4:24 AM CST | High Wind Watch | ABR | 6 hr |
| Jan 25, 10:38 AM CST | High Wind Warning | ABR | 34 hr |
| Jan 26, 2:33 PM CST | Wind Chill Advisory | ABR | 45 hr |
| Feb 4, 2:50 PM CST | Wind Chill Advisory | ABR | 44 hr |
| Feb 6, 2:51 PM CST | Wind Chill Advisory | ABR | 19 hr |
| Feb 18, 3:47 AM CST | Wind Advisory | ABR | 14 hr |
| Feb 19, 3:44 PM CST | Wind Advisory | ABR | 26 hr |
| Feb 24, 3:32 AM CST | Wind Chill Advisory | ABR | 30 hr |
| Feb 24, 10:44 AM CST | Winter Weather Advisory | ABR | 8 hr |
| Feb 28, 6:45 AM CST | Wind Advisory | ABR | 9 hr |
| Feb 28, 4:02 PM CST | Wind Chill Advisory | ABR | 44 hr |
| Mar 1, 3:12 PM CST | Wind Chill Warning | ABR | 21 hr |
| Mar 2, 3:44 PM CST | Wind Chill Advisory | ABR | 18 hr |
| Mar 17, 2:56 PM CDT | Winter Weather Advisory | ABR | 17 hr |
| Mar 29, 4:26 AM CDT | Blizzard Watch | ABR | 48 hr |
| Mar 30, 12:01 PM CDT | Blizzard Warning | ABR | 42 hr |
| Mar 31, 3:49 PM CDT | Mesoscale Discussion | SPC | 5 hr |
| Apr 3, 8:43 AM CDT | Winter Weather Advisory | ABR | 3 hr |
| Apr 18, 3:56 AM CDT | Wind Advisory | ABR | 27 hr |
| Apr 23, 4:12 AM CDT | Wind Advisory | ABR | 15 hr |
| Apr 26, 10:35 AM CDT | Wind Advisory | ABR | 32 hr |
| Apr 27, 1:58 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 11, 3:12 PM CDT | Wind Advisory | ABR | 28 hr |
| May 13, 3:00 PM CDT | Frost Advisory | ABR | 17 hr |
| May 14, 3:18 PM CDT | Freeze Warning | ABR | 17 hr |
| May 15, 3:18 PM CDT | Frost Advisory | ABR | 17 hr |
| May 27, 2:14 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| May 30, 2:56 PM CDT | Mesoscale Discussion | SPC | 94 min |
| May 30, 6:27 PM CDT | Flash Flood Warning | ABR | 6 hr |
| May 31, 1:50 PM CDT | Flash Flood Watch | ABR | 31 hr |
| Jun 10, 9:41 PM CDT | Mesoscale Discussion | SPC | 94 min |
| Jun 13, 3:56 AM CDT | Wind Advisory | ABR | 12 hr |
| Jun 13, 9:46 PM CDT | Severe Thunderstorm Warning | ABR | 59 min |
| Jun 13, 10:44 PM CDT | Severe Thunderstorm Warning | ABR | 45 min |
| Jun 14, 7:14 AM CDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 16, 7:33 AM CDT | Mesoscale Discussion | SPC | 57 min |
| Jun 16, 8:50 AM CDT | Severe Thunderstorm Warning | ABR | 40 min |
| Jun 18, 3:30 AM CDT | Severe Thunderstorm Warning | ABR | 60 min |
| Jun 18, 4:29 AM CDT | Severe Thunderstorm Warning | ABR | 61 min |
| Jun 18, 4:45 AM CDT | Mesoscale Discussion | SPC | 90 min |
| Jun 18, 5:30 AM CDT | Severe Thunderstorm Warning | ABR | 60 min |
| Jun 18, 8:58 AM CDT | Severe Thunderstorm Warning | ABR | 62 min |
| Jun 18, 1:13 PM CDT | Mesoscale Discussion | SPC | 92 min |
| Jun 18, 1:28 PM CDT | Tornado Watch | SPC | 9 hr |
| Jun 19, 2:37 PM CDT | Mesoscale Discussion | SPC | 53 min |
| Jun 19, 3:18 PM CDT | Severe Thunderstorm Warning | ABR | 42 min |
| Jun 19, 4:54 PM CDT | Severe Thunderstorm Warning | ABR | 36 min |
| Jun 19, 5:20 PM CDT | Severe Thunderstorm Warning | ABR | 40 min |
| Jun 21, 2:56 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 21, 5:49 PM CDT | Mesoscale Discussion | SPC | 86 min |
| Jun 21, 6:18 PM CDT | Severe Thunderstorm Warning | ABR | 57 min |
| Jun 21, 6:47 PM CDT | Severe Thunderstorm Warning | ABR | 58 min |
| Jun 21, 7:46 PM CDT | Severe Thunderstorm Warning | ABR | 44 min |
| Jun 21, 8:10 PM CDT | Severe Thunderstorm Warning | ABR | 25 min |
| Jun 21, 8:14 PM CDT | Mesoscale Discussion | SPC | 91 min |
| Jun 26, 7:44 PM CDT | Flash Flood Watch | ABR | 31 hr |
| Jun 30, 3:33 AM CDT | Wind Advisory | ABR | 16 hr |
| Jul 5, 5:03 PM CDT | Mesoscale Discussion | SPC | 57 min |
| Jul 11, 5:46 PM CDT | Severe Thunderstorm Warning | ABR | 44 min |
| Jul 11, 6:21 PM CDT | Severe Thunderstorm Warning | ABR | 39 min |
| Jul 20, 4:09 AM CDT | Heat Advisory | ABR | 41 hr |
| Jul 24, 11:22 PM CDT | Severe Thunderstorm Warning | ABR | 29 min |
| Aug 1, 5:09 PM CDT | Mesoscale Discussion | SPC | 66 min |
| Aug 16, 5:02 AM CDT | Dense Fog Advisory | ABR | 4 hr |
| Aug 20, 3:42 PM CDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 20, 5:00 PM CDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 20, 7:53 PM CDT | Mesoscale Discussion | SPC | 97 min |
| Aug 22, 11:03 PM CDT | Flood Watch | ABR | 22 hr |
| Aug 30, 11:00 PM CDT | Mesoscale Discussion | SPC | 90 min |
| Sep 1, 2:47 PM CDT | Mesoscale Discussion | SPC | 88 min |
| Sep 7, 7:37 PM CDT | Severe Thunderstorm Warning | ABR | 18 min |
| Sep 11, 2:46 PM CDT | Frost Advisory | ABR | 18 hr |
| Sep 24, 5:59 AM CDT | Dense Fog Advisory | ABR | 3 hr |
| Sep 30, 3:33 AM CDT | Wind Advisory | ABR | 15 hr |
| Oct 2, 3:26 PM CDT | Wind Advisory | ABR | 27 hr |
| Oct 3, 4:41 AM CDT | Freeze Warning | ABR | 28 hr |
| Oct 5, 3:45 AM CDT | Wind Advisory | ABR | 11 hr |
| Oct 16, 3:50 AM CDT | Wind Advisory | ABR | 15 hr |
| Nov 4, 3:23 PM CST | Wind Advisory | ABR | 26 hr |
| Nov 7, 3:53 AM CST | Wind Advisory | ABR | 20 hr |
| Nov 8, 3:27 PM CST | Winter Storm Watch | ABR | 13 hr |
| Nov 9, 4:07 AM CST | Winter Weather Advisory | ABR | 41 hr |
| Nov 14, 3:50 AM CST | Winter Weather Advisory | ABR | 36 hr |
| Nov 15, 3:25 PM CST | Winter Weather Advisory | ABR | 30 hr |
| Nov 22, 3:39 PM CST | Wind Advisory | ABR | 44 hr |
| Dec 14, 2:58 PM CST | Winter Weather Advisory | ABR | 33 hr |
| Dec 15, 3:24 AM CST | Freezing Rain Advisory | ABR | 6 hr |
| Dec 22, 2:47 AM CST | Winter Weather Advisory | ABR | 36 hr |
| Dec 24, 2:35 PM CST | Winter Weather Advisory | ABR | 34 hr |
| Dec 29, 3:20 AM CST | Wind Chill Advisory | ABR | 33 hr |
| Dec 30, 3:01 PM CST | Wind Chill Advisory | ABR | 18 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 | 18 |
| Severe Thunderstorm Watch | 2 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 18 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 2 |
| Flood Watch | 1 |
| Winter | |
| Blizzard Warning | 1 |
| Blizzard Watch | 1 |
| Winter Storm Watch | 1 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 9 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 2 |
| Wind Chill Warning | 2 |
| Frost Advisory | 3 |
| Wind Chill Advisory | 8 |
| Wind and dust | |
| High Wind Warning | 3 |
| High Wind Watch | 2 |
| Wind Advisory | 23 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
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.