Alert archive / Idaho / Valley County
Weather alerts in Valley County, Idaho, 2014
35 weather alerts in 2014, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Valley County and its neighbors
Each county as a circle sized by its count in 2014. Tap one for its archive.
- Alerts
- 35
- Warnings
- 6
- Watches
- 9
- Advisories
- 14
- Busiest month
- August7 alerts
- Busiest day
- August 10, 20142 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Valley County, 2014
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 1 | 0 | 100% | 1 | 0% | |
| Flash flood warnings | 0 | 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, 3:17 PM MST | Winter Weather Advisory | BOI | 50 hr |
| Jan 16, 6:14 AM MST | Dense Fog Advisory | BOI | 55 hr |
| Jan 28, 3:47 AM MST | Winter Weather Advisory | BOI | 37 hr |
| Feb 5, 3:42 AM MST | Winter Weather Advisory | BOI | 4 days |
| Feb 10, 2:59 PM MST | Winter Weather Advisory | BOI | 52 hr |
| Feb 13, 3:05 PM MST | Flood Watch | BOI | 60 hr |
| Mar 4, 10:13 AM MST | Flood Watch | BOI | 63 hr |
| Mar 8, 2:30 PM MST | Flood Watch | BOI | 45 hr |
| Mar 27, 1:47 PM MDT | Flood Watch | BOI | 52 hr |
| May 31, 5:53 PM MDT | Special Weather Statement | BOI | 52 min |
| Jun 3, 8:11 PM MDT | Special Weather Statement | BOI | 49 min |
| Jun 15, 10:35 PM MDT | Special Weather Statement | BOI | 40 min |
| Jul 20, 1:37 PM MDT | Fire Weather Watch | BOI | 23 hr |
| Jul 22, 3:28 AM MDT | Red Flag Warning | BOI | 25 hr |
| Jul 23, 8:40 AM MDT | Red Flag Warning | BOI | 12 hr |
| Jul 23, 6:17 PM MDT | Special Weather Statement | BOI | 43 min |
| Jul 29, 12:57 PM MDT | Fire Weather Watch | PIH | 14 hr |
| Jul 30, 3:20 AM MDT | Red Flag Warning | PIH | 17 hr |
| Aug 10, 8:27 AM MDT | Red Flag Warning | BOI | 61 hr |
| Aug 10, 2:16 PM MDT | Fire Weather Watch | BOI | 39 hr |
| Aug 12, 9:06 PM MDT | Red Flag Warning | BOI | 27 hr |
| Aug 13, 3:48 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Aug 14, 7:56 AM MDT | Severe Thunderstorm Warning | BOI | 49 min |
| Aug 14, 12:47 PM MDT | Mesoscale Discussion | SPC | 88 min |
| Aug 22, 9:03 AM MDT | Flash Flood Watch | BOI | 12 hr |
| Nov 11, 1:47 PM MST | Winter Weather Advisory | BOI | 3 days |
| Nov 12, 1:09 PM MST | Winter Storm Watch | BOI | 15 hr |
| Nov 21, 3:58 AM MST | Winter Weather Advisory | BOI | 31 hr |
| Nov 24, 2:14 PM MST | Winter Weather Advisory | BOI | 27 hr |
| Dec 1, 4:15 AM MST | Winter Weather Advisory | BOI | 24 hr |
| Dec 7, 2:20 PM MST | Dense Fog Advisory | BOI | 21 hr |
| Dec 19, 3:13 PM MST | Winter Weather Advisory | BOI | 36 hr |
| Dec 23, 3:29 PM MST | Winter Weather Advisory | BOI | 42 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 | 1 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 4 |
| Flooding | |
| Flash Flood Watch | 1 |
| Flood Watch | 4 |
| Winter | |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 12 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 3 |
| 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.