Alert archive / South Dakota / Fall River County
Weather alerts in Fall River County, South Dakota, 2014
144 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Fall River County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 144
- Warnings
- 33
- Watches
- 20
- Advisories
- 37
- Busiest month
- June52 alerts
- Busiest day
- July 23, 20149 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 1 tornado warnings covering Fall River County in 2014 had a tornado report inside them.
Fall River County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 27 | 24 | 11% | 24 | 92% | 22 min |
| Flash flood warnings | 1 | 1 | 0% | 1 | 100% | 132 min |
Each office's whole area, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Rapid City, SD: tornado warnings | 11 | 5 | 55% | 10 | 50% | 7 min |
| NWS Rapid City, SD: severe thunderstorm warnings | 277 | 214 | 23% | 385 | 86% | 22 min |
| NWS Rapid City, SD: flash flood warnings | 10 | 5 | 50% | 8 | 75% | 68 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 3, 3:02 PM MST | Wind Chill Warning | UNR | 69 hr |
| Jan 6, 2:58 AM MST | Wind Chill Advisory | UNR | 9 hr |
| Jan 12, 2:49 PM MST | High Wind Watch | UNR | 13 hr |
| Jan 13, 3:43 AM MST | Wind Advisory | UNR | 35 hr |
| Jan 14, 3:22 PM MST | High Wind Watch | UNR | 22 hr |
| Jan 15, 1:41 PM MST | High Wind Warning | UNR | 28 hr |
| Jan 19, 2:29 PM MST | Wind Advisory | UNR | 24 hr |
| Jan 25, 9:03 AM MST | Wind Advisory | UNR | 35 hr |
| Jan 26, 1:37 PM MST | Wind Chill Advisory | UNR | 19 hr |
| Feb 4, 3:13 AM MST | Wind Chill Advisory | UNR | 57 hr |
| Feb 6, 7:36 PM MST | Wind Chill Advisory | UNR | 13 hr |
| Feb 8, 2:56 PM MST | Winter Weather Advisory | UNR | 21 hr |
| Feb 9, 6:08 AM MST | Special Weather Statement | UNR | 52 min |
| Feb 27, 4:15 AM MST | Winter Storm Watch | UNR | 24 hr |
| Feb 28, 3:51 AM MST | Winter Weather Advisory | UNR | 37 hr |
| Feb 28, 2:32 PM MST | Wind Chill Advisory | UNR | 44 hr |
| Mar 17, 3:18 AM MDT | Winter Weather Advisory | UNR | 30 hr |
| Mar 30, 5:06 AM MDT | Winter Weather Advisory | UNR | 34 hr |
| Apr 2, 7:30 AM MDT | Winter Weather Advisory | UNR | 11 hr |
| Apr 12, 3:01 PM MDT | Winter Weather Advisory | UNR | 19 hr |
| Apr 22, 4:14 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Apr 26, 9:29 PM MDT | Special Weather Statement | UNR | 61 min |
| Apr 26, 9:55 PM MDT | Severe Thunderstorm Warning | UNR | 65 min |
| Apr 26, 11:01 PM MDT | Special Weather Statement | UNR | 44 min |
| Apr 27, 1:41 PM MDT | Wind Advisory | UNR | 30 hr |
| Apr 28, 10:43 AM MDT | Wind Advisory | UNR | 9 hr |
| Apr 29, 6:08 PM MDT | Wind Advisory | UNR | 24 hr |
| May 5, 2:48 PM MDT | Mesoscale Discussion | SPC | 57 min |
| May 7, 3:39 AM MDT | Winter Weather Advisory | UNR | 32 hr |
| May 10, 2:53 PM MDT | Winter Weather Advisory | UNR | 20 hr |
| May 18, 12:37 PM MDT | Mesoscale Discussion | SPC | 83 min |
| May 18, 5:12 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 18, 7:44 PM MDT | Mesoscale Discussion | SPC | 61 min |
| May 25, 4:44 AM MDT | Flash Flood Watch | UNR | 15 hr |
| May 25, 2:29 PM MDT | Special Weather Statement | UNR | 46 min |
| May 25, 4:51 PM MDT | Special Weather Statement | CYS | 24 min |
| May 27, 4:25 PM MDT | Severe Thunderstorm Warning | UNR | 65 min |
| May 27, 4:31 PM MDT | Severe Thunderstorm Warning | UNR | 59 min |
| May 27, 5:29 PM MDT | Severe Thunderstorm Warning | UNR | 61 min |
| May 31, 4:49 PM MDT | Mesoscale Discussion | SPC | 86 min |
| May 31, 7:32 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Jun 3, 12:20 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Jun 3, 1:37 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 3, 5:40 PM MDT | Mesoscale Discussion | SPC | 65 min |
| Jun 4, 12:58 PM MDT | Mesoscale Discussion | SPC | 92 min |
| Jun 4, 1:44 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 4, 4:41 PM MDT | Severe Thunderstorm Warning | UNR | 64 min |
| Jun 4, 5:12 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 4, 5:25 PM MDT | Severe Thunderstorm Warning | UNR | 65 min |
| Jun 4, 5:33 PM MDT | Tornado Warning | UNR | 27 min |
| Jun 10, 2:43 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 10, 2:48 PM MDT | Mesoscale Discussion | SPC | 57 min |
| Jun 10, 6:37 PM MDT | Special Weather Statement | CYS | 23 min |
| Jun 10, 6:37 PM MDT | Severe Thunderstorm Warning | UNR | 53 min |
| Jun 13, 1:46 PM MDT | Mesoscale Discussion | SPC | 89 min |
| Jun 13, 2:09 PM MDT | Severe Thunderstorm Watch | SPC | 9 hr |
| Jun 13, 4:57 PM MDT | Severe Thunderstorm Warning | UNR | 48 min |
| Jun 13, 5:16 PM MDT | Special Weather Statement | UNR | 44 min |
| Jun 13, 6:11 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 13, 8:26 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Jun 14, 4:31 AM MDT | Special Weather Statement | UNR | 44 min |
| Jun 14, 7:21 PM MDT | Severe Thunderstorm Warning | UNR | 54 min |
| Jun 14, 8:16 PM MDT | Special Weather Statement | UNR | 44 min |
| Jun 16, 3:03 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Jun 17, 11:40 AM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 17, 2:22 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Jun 17, 3:31 PM MDT | Special Weather Statement | UNR | 44 min |
| Jun 17, 7:43 PM MDT | Severe Thunderstorm Warning | UNR | 62 min |
| Jun 17, 7:58 PM MDT | Severe Thunderstorm Watch | SPC | 5 hr |
| Jun 17, 8:33 PM MDT | Severe Thunderstorm Warning | UNR | 57 min |
| Jun 17, 9:01 PM MDT | Severe Thunderstorm Warning | UNR | 74 min |
| Jun 21, 1:23 PM MDT | Mesoscale Discussion | SPC | 67 min |
| Jun 21, 1:56 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 24, 2:48 PM MDT | Flash Flood Watch | UNR | 3 days |
| Jun 25, 12:58 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 25, 1:50 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jun 25, 5:07 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jun 25, 6:13 PM MDT | Severe Thunderstorm Warning | UNR | 62 min |
| Jun 25, 6:42 PM MDT | Severe Thunderstorm Warning | UNR | 48 min |
| Jun 25, 7:13 PM MDT | Severe Thunderstorm Warning | UNR | 32 min |
| Jun 25, 8:15 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jun 26, 12:35 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jun 26, 2:07 PM MDT | Mesoscale Discussion | SPC | 53 min |
| Jun 26, 3:01 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 26, 5:48 PM MDT | Mesoscale Discussion | SPC | 87 min |
| Jun 26, 6:51 PM MDT | Special Weather Statement | CYS | 24 min |
| Jun 27, 3:33 PM MDT | Severe Thunderstorm Warning | UNR | 30 min |
| Jun 27, 4:17 PM MDT | Severe Thunderstorm Watch | SPC | 6 hr |
| Jun 27, 4:26 PM MDT | Special Weather Statement | UNR | 34 min |
| Jun 27, 4:38 PM MDT | Severe Thunderstorm Warning | UNR | 42 min |
| Jun 27, 5:47 PM MDT | Mesoscale Discussion | SPC | 58 min |
| Jun 27, 6:41 PM MDT | Mesoscale Discussion | SPC | 94 min |
| Jul 4, 8:05 PM MDT | Severe Thunderstorm Warning | UNR | 55 min |
| Jul 10, 2:37 PM MDT | Mesoscale Discussion | SPC | 83 min |
| Jul 10, 5:22 PM MDT | Special Weather Statement | UNR | 38 min |
| Jul 10, 5:47 PM MDT | Special Weather Statement | UNR | 43 min |
| Jul 12, 3:43 PM MDT | Severe Thunderstorm Warning | UNR | 46 min |
| Jul 18, 1:39 PM MDT | Special Weather Statement | UNR | 51 min |
| Jul 22, 2:30 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jul 22, 2:57 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 22, 6:21 PM MDT | Mesoscale Discussion | SPC | 114 min |
| Jul 22, 7:48 PM MDT | Severe Thunderstorm Warning | UNR | 42 min |
| Jul 22, 8:17 PM MDT | Mesoscale Discussion | SPC | 88 min |
| Jul 22, 8:18 PM MDT | Areal Flood Advisory | UNR | 3 hr |
| Jul 22, 8:28 PM MDT | Severe Thunderstorm Warning | UNR | 49 min |
| Jul 23, 2:01 AM MDT | Severe Thunderstorm Warning | UNR | 44 min |
| Jul 23, 2:19 AM MDT | Mesoscale Discussion | SPC | 116 min |
| Jul 23, 2:30 AM MDT | Severe Thunderstorm Warning | UNR | 51 min |
| Jul 23, 2:15 PM MDT | Mesoscale Discussion | SPC | 60 min |
| Aug 6, 4:39 PM MDT | Special Weather Statement | UNR | 51 min |
| Aug 7, 10:32 PM MDT | Special Weather Statement | UNR | 43 min |
| Aug 9, 2:20 PM MDT | Severe Thunderstorm Warning | UNR | 55 min |
| Aug 9, 2:48 PM MDT | Areal Flood Advisory | UNR | 3 hr |
| Aug 9, 3:12 PM MDT | Severe Thunderstorm Warning | UNR | 42 min |
| Aug 9, 3:32 PM MDT | Special Weather Statement | CYS | 28 min |
| Aug 9, 4:08 PM MDT | Mesoscale Discussion | SPC | 67 min |
| Aug 9, 7:13 PM MDT | Flash Flood Warning | UNR | 6 hr |
| Aug 13, 1:52 PM MDT | Flash Flood Watch | UNR | 44 hr |
| Aug 17, 4:48 PM MDT | Severe Thunderstorm Warning | UNR | 42 min |
| Aug 22, 9:46 PM MDT | Flood Watch | UNR | 23 hr |
| Aug 23, 1:07 PM MDT | Mesoscale Discussion | SPC | 113 min |
| Aug 23, 1:47 PM MDT | Special Weather Statement | UNR | 43 min |
| Aug 30, 5:35 PM MDT | Severe Thunderstorm Warning | UNR | 55 min |
| Aug 31, 3:10 PM MDT | Special Weather Statement | UNR | 65 min |
| Sep 1, 1:47 PM MDT | Mesoscale Discussion | SPC | 88 min |
| Sep 11, 11:53 AM MDT | Freeze Warning | UNR | 20 hr |
| Sep 29, 11:16 AM MDT | Flood Watch | UNR | 24 hr |
| Sep 30, 2:53 AM MDT | Wind Advisory | UNR | 15 hr |
| Sep 30, 6:29 AM MDT | Areal Flood Advisory | UNR | 13 hr |
| Nov 7, 2:54 AM MST | Wind Advisory | UNR | 15 hr |
| Nov 9, 3:16 AM MST | Winter Weather Advisory | UNR | 36 hr |
| Nov 11, 2:36 PM MST | Wind Chill Advisory | UNR | 17 hr |
| Nov 12, 2:10 PM MST | Wind Chill Advisory | UNR | 19 hr |
| Nov 14, 2:55 AM MST | Winter Weather Advisory | UNR | 35 hr |
| Nov 15, 2:46 PM MST | Winter Weather Advisory | UNR | 36 hr |
| Nov 22, 2:50 PM MST | Wind Advisory | UNR | 29 hr |
| Dec 14, 3:29 AM MST | Winter Weather Advisory | UNR | 38 hr |
| Dec 21, 2:55 PM MST | Wind Advisory | UNR | 29 hr |
| Dec 21, 2:55 PM MST | Winter Weather Advisory | UNR | 45 hr |
| Dec 24, 2:02 PM MST | Winter Weather Advisory | UNR | 33 hr |
| Dec 28, 3:34 AM MST | Winter Weather Advisory | UNR | 29 hr |
| Dec 29, 3:40 AM MST | Wind Chill Advisory | UNR | 31 hr |
| Dec 30, 2:30 PM MST | Wind Chill Advisory | UNR | 18 hr |
| Dec 30, 6:09 PM MST | Wind Chill Warning | UNR | 14 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 | 27 |
| Tornado Warning | 1 |
| Severe Thunderstorm Watch | 12 |
| Mesoscale Discussion | 34 |
| Special Weather Statement | 20 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 3 |
| Flood Watch | 2 |
| Areal Flood Advisory | 3 |
| Winter | |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 15 |
| Cold | |
| Freeze Warning | 1 |
| Wind Chill Warning | 2 |
| Wind Chill Advisory | 9 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 2 |
| Wind Advisory | 10 |
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.