Alert archive / Idaho / Twin Falls County
Weather alerts in Twin Falls County, Idaho, 2014
101 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Twin Falls County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 101
- Warnings
- 25
- Watches
- 7
- Advisories
- 36
- Busiest month
- August48 alerts
- Busiest day
- August 13, 20148 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Twin Falls County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 12 | 5 | 58% | 7 | 100% | 25 min |
| Flash flood warnings | 1 | 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 Boise, ID: severe thunderstorm warnings | 39 | 8 | 79% | 24 | 71% | 21 min |
| NWS Boise, ID: flash flood warnings | 26 | 1 | 96% | 7 | 14% | 142 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 8, 1:42 PM MST | Winter Weather Advisory | BOI | 21 hr |
| Jan 10, 2:59 PM MST | Wind Advisory | BOI | 32 hr |
| Jan 12, 3:58 AM MST | Wind Advisory | BOI | 13 hr |
| Jan 13, 3:15 AM MST | Wind Advisory | BOI | 11 hr |
| Jan 18, 2:44 PM MST | Dense Fog Advisory | BOI | 44 hr |
| Jan 21, 8:54 PM MST | Dense Fog Advisory | BOI | 14 hr |
| Jan 24, 2:16 AM MST | Dense Fog Advisory | BOI | 9 hr |
| Jan 24, 9:09 PM MST | Dense Fog Advisory | BOI | 14 hr |
| Jan 25, 8:25 PM MST | Dense Fog Advisory | BOI | 17 hr |
| Jan 26, 2:20 PM MST | Dense Fog Advisory | BOI | 23 hr |
| Feb 4, 3:00 PM MST | Winter Weather Advisory | BOI | 13 hr |
| Feb 5, 3:42 AM MST | Winter Weather Advisory | BOI | 4 days |
| Feb 6, 2:33 PM MST | Winter Storm Warning | BOI | 39 hr |
| Feb 15, 1:59 PM MST | Wind Advisory | BOI | 27 hr |
| Feb 18, 1:06 PM MST | Wind Advisory | BOI | 28 hr |
| Mar 6, 6:29 PM MST | Special Weather Statement | BOI | 61 min |
| Mar 15, 1:21 PM MDT | Wind Advisory | BOI | 56 hr |
| Mar 16, 4:34 AM MDT | High Wind Warning | BOI | 37 hr |
| Mar 31, 3:21 PM MDT | Winter Weather Advisory | BOI | 42 hr |
| Apr 14, 2:05 PM MDT | Wind Advisory | BOI | 30 hr |
| Apr 17, 3:20 AM MDT | Wind Advisory | BOI | 24 hr |
| May 10, 2:39 PM MDT | Frost Advisory | BOI | 18 hr |
| May 21, 1:30 PM MDT | Special Weather Statement | LKN | 30 min |
| May 21, 2:14 PM MDT | Special Weather Statement | BOI | 46 min |
| Jul 14, 3:37 AM MDT | Red Flag Warning | PIH | 18 hr |
| Jul 14, 1:30 PM MDT | Special Weather Statement | BOI | 60 min |
| Jul 14, 2:05 PM MDT | Mesoscale Discussion | SPC | 115 min |
| Jul 14, 2:45 PM MDT | Special Weather Statement | BOI | 60 min |
| Jul 14, 4:05 PM MDT | Special Weather Statement | LKN | 40 min |
| Jul 14, 5:42 PM MDT | Mesoscale Discussion | SPC | 63 min |
| Jul 19, 3:19 AM MDT | Red Flag Warning | PIH | 18 hr |
| Jul 19, 1:56 PM MDT | Red Flag Warning | PIH | 57 hr |
| Jul 21, 12:25 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| Jul 21, 4:16 PM MDT | Special Weather Statement | BOI | 44 min |
| Jul 21, 4:29 PM MDT | Severe Thunderstorm Warning | BOI | 46 min |
| Jul 22, 2:55 AM MDT | Fire Weather Watch | PIH | 34 hr |
| Jul 23, 12:53 PM MDT | Red Flag Warning | PIH | 32 hr |
| Jul 29, 6:17 PM MDT | Special Weather Statement | BOI | 88 min |
| Aug 3, 4:14 AM MDT | Flash Flood Watch | BOI | 4 days |
| Aug 4, 7:45 PM MDT | Special Weather Statement | LKN | 45 min |
| Aug 5, 7:15 AM MDT | Areal Flood Advisory | BOI | 3 hr |
| Aug 5, 10:14 AM MDT | Areal Flood Advisory | BOI | 6 hr |
| Aug 5, 4:14 PM MDT | Areal Flood Advisory | BOI | 4 hr |
| Aug 6, 12:45 AM MDT | Areal Flood Advisory | BOI | 6 hr |
| Aug 6, 1:38 AM MDT | Areal Flood Warning | BOI | 6 hr |
| Aug 6, 8:08 AM MDT | Areal Flood Warning | BOI | 3 hr |
| Aug 6, 11:02 AM MDT | Areal Flood Warning | BOI | 9 hr |
| Aug 7, 1:49 PM MDT | Flash Flood Watch | BOI | 14 hr |
| Aug 7, 9:04 PM MDT | Flash Flood Watch | BOI | 6 hr |
| Aug 8, 2:07 PM MDT | Special Weather Statement | LKN | 23 min |
| Aug 8, 2:14 PM MDT | Special Weather Statement | BOI | 46 min |
| Aug 8, 2:55 PM MDT | Special Weather Statement | BOI | 50 min |
| Aug 8, 3:08 PM MDT | Severe Thunderstorm Warning | BOI | 52 min |
| Aug 12, 2:35 PM MDT | Special Weather Statement | BOI | 40 min |
| Aug 12, 2:37 PM MDT | Mesoscale Discussion | SPC | 53 min |
| Aug 12, 3:36 PM MDT | Severe Thunderstorm Warning | BOI | 39 min |
| Aug 12, 4:42 PM MDT | Special Weather Statement | BOI | 48 min |
| Aug 12, 5:28 PM MDT | Special Weather Statement | BOI | 62 min |
| Aug 12, 5:37 PM MDT | Severe Thunderstorm Warning | BOI | 25 min |
| Aug 13, 12:44 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 13, 1:21 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Aug 13, 2:42 PM MDT | Severe Thunderstorm Warning | BOI | 31 min |
| Aug 13, 3:08 PM MDT | Severe Thunderstorm Warning | BOI | 67 min |
| Aug 13, 3:27 PM MDT | Severe Thunderstorm Warning | BOI | 63 min |
| Aug 13, 4:26 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 13, 4:30 PM MDT | Areal Flood Advisory | BOI | 3 hr |
| Aug 13, 4:56 PM MDT | Flash Flood Warning | BOI | 9 hr |
| Aug 18, 5:45 PM MDT | Special Weather Statement | BOI | 45 min |
| Aug 19, 7:46 PM MDT | Severe Thunderstorm Warning | BOI | 33 min |
| Aug 21, 2:54 PM MDT | Special Weather Statement | LKN | 51 min |
| Aug 21, 3:26 PM MDT | Special Weather Statement | BOI | 49 min |
| Aug 21, 3:54 PM MDT | Special Weather Statement | BOI | 51 min |
| Aug 21, 4:05 PM MDT | Severe Thunderstorm Warning | BOI | 55 min |
| Aug 21, 5:45 PM MDT | Severe Thunderstorm Warning | BOI | 45 min |
| Aug 22, 1:48 PM MDT | Special Weather Statement | BOI | 27 min |
| Aug 22, 2:14 PM MDT | Special Weather Statement | BOI | 31 min |
| Aug 22, 2:19 PM MDT | Special Weather Statement | BOI | 26 min |
| Aug 22, 2:50 PM MDT | Special Weather Statement | BOI | 25 min |
| Aug 22, 7:26 PM MDT | Severe Thunderstorm Warning | BOI | 64 min |
| Aug 22, 8:13 PM MDT | Severe Thunderstorm Warning | BOI | 47 min |
| Aug 22, 8:25 PM MDT | Areal Flood Advisory | BOI | 2 hr |
| Aug 24, 8:29 AM MDT | Fire Weather Watch | BOI | 6 hr |
| Aug 24, 2:09 PM MDT | Red Flag Warning | BOI | 24 hr |
| Aug 26, 5:51 PM MDT | Special Weather Statement | BOI | 24 min |
| Aug 26, 6:18 PM MDT | Special Weather Statement | BOI | 42 min |
| Aug 30, 9:50 PM MDT | Special Weather Statement | BOI | 40 min |
| Sep 18, 1:32 PM MDT | Mesoscale Discussion | SPC | 118 min |
| Sep 21, 11:18 AM MDT | Flash Flood Watch | BOI | 11 hr |
| Oct 15, 10:47 AM MDT | Wind Advisory | BOI | 4 hr |
| Oct 15, 12:19 PM MDT | Wind Advisory | BOI | 6 hr |
| Oct 27, 2:47 PM MDT | Freeze Warning | BOI | 19 hr |
| Nov 9, 3:44 AM MST | Wind Advisory | BOI | 25 hr |
| Nov 11, 1:47 PM MST | Winter Weather Advisory | BOI | 3 days |
| Nov 14, 10:04 AM MST | Winter Weather Advisory | BOI | 13 hr |
| Dec 12, 3:32 AM MST | Wind Advisory | BOI | 7 hr |
| Dec 20, 2:08 PM MST | Wind Advisory | BOI | 25 hr |
| Dec 22, 10:15 AM MST | Wind Advisory | BOI | 9 hr |
| Dec 23, 3:29 PM MST | Winter Weather Advisory | BOI | 42 hr |
| Dec 24, 7:09 PM MST | Winter Storm Warning | BOI | 15 hr |
| Dec 25, 3:11 AM MST | Wind Advisory | BOI | 14 hr |
| Dec 26, 1:46 PM MST | Winter Weather Advisory | BOI | 45 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 | 12 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 7 |
| Special Weather Statement | 26 |
| Flooding | |
| Areal Flood Warning | 3 |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 4 |
| Areal Flood Advisory | 6 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Weather Advisory | 8 |
| Cold | |
| Freeze Warning | 1 |
| Frost Advisory | 1 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 15 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 6 |
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.