Alert archive / Idaho / Washington County
Weather alerts in Washington County, Idaho, 2013
69 weather alerts in 2013, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Washington County and its neighbors
Each county as a circle sized by its count in 2013. Tap one for its archive.
- Alerts
- 69
- Warnings
- 13
- Watches
- 8
- Advisories
- 37
- Busiest month
- January18 alerts
- Busiest day
- September 5, 20139 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Washington County, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 3 | 3 | 0% | 0 | ||
| Flash flood warnings | 1 | 1 | 0% | 0 |
Each office's whole area, 2013
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Boise, ID: tornado warnings | 0 | 2 | 0% | |||
| NWS Boise, ID: severe thunderstorm warnings | 33 | 11 | 67% | 33 | 58% | 24 min |
| NWS Boise, ID: flash flood warnings | 17 | 4 | 76% | 13 | 62% | 30 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 7, 12:46 PM MST | Winter Weather Advisory | BOI | 7 hr |
| Jan 8, 3:25 PM MST | Winter Weather Advisory | BOI | 50 hr |
| Jan 16, 11:02 PM MST | Dense Fog Advisory | BOI | 12 hr |
| Jan 17, 4:49 PM MST | Dense Fog Advisory | BOI | 18 hr |
| Jan 18, 2:40 PM MST | Dense Fog Advisory | BOI | 20 hr |
| Jan 19, 2:35 PM MST | Dense Fog Advisory | BOI | 20 hr |
| Jan 20, 10:39 AM MST | Dense Fog Advisory | BOI | 20 hr |
| Jan 21, 2:19 PM MST | Dense Fog Advisory | BOI | 21 hr |
| Jan 23, 1:02 PM MST | Winter Weather Advisory | BOI | 22 hr |
| Jan 24, 2:53 PM MST | Winter Weather Advisory | BOI | 33 hr |
| Jan 24, 2:57 PM MST | Dense Fog Advisory | BOI | 20 hr |
| Jan 26, 12:27 AM MST | Dense Fog Advisory | BOI | 13 hr |
| Jan 26, 1:13 PM MST | Dense Fog Advisory | BOI | 4 hr |
| Jan 27, 1:07 AM MST | Dense Fog Advisory | BOI | 9 hr |
| Jan 27, 1:57 PM MST | Winter Storm Warning | BOI | 51 hr |
| Jan 27, 1:57 PM MST | Winter Weather Advisory | BOI | 24 hr |
| Jan 27, 2:14 PM MST | Wind Advisory | BOI | 23 hr |
| Jan 28, 1:30 PM MST | Winter Weather Advisory | BOI | 28 hr |
| Feb 1, 6:41 AM MST | Dense Fog Advisory | BOI | 30 hr |
| Feb 2, 2:36 PM MST | Dense Fog Advisory | BOI | 20 hr |
| Feb 6, 3:38 AM MST | Dense Fog Advisory | BOI | 8 hr |
| Feb 21, 12:10 PM MST | Winter Storm Watch | BOI | 16 hr |
| Feb 21, 1:47 PM MST | Wind Advisory | BOI | 51 hr |
| Feb 22, 3:44 AM MST | Winter Storm Warning | BOI | 31 hr |
| Feb 22, 3:44 AM MST | Winter Weather Advisory | BOI | 26 hr |
| Feb 28, 10:29 PM MST | Dense Fog Advisory | BOI | 12 hr |
| Mar 1, 10:24 PM MST | Dense Fog Advisory | BOI | 13 hr |
| Mar 20, 4:02 PM MDT | Special Weather Statement | BOI | 88 min |
| Apr 8, 4:12 AM MDT | Wind Advisory | BOI | 17 hr |
| May 12, 12:07 PM MDT | Wind Advisory | BOI | 35 hr |
| May 22, 1:25 PM MDT | Frost Advisory | BOI | 20 hr |
| May 22, 9:11 PM MDT | Freeze Warning | BOI | 12 hr |
| Jun 28, 1:28 PM MDT | Heat Advisory | BOI | 5 days |
| Jul 15, 1:58 PM MDT | Red Flag Warning | BOI | 40 hr |
| Jul 30, 1:54 PM MDT | Fire Weather Watch | BOI | 22 hr |
| Jul 31, 11:43 AM MDT | Red Flag Warning | BOI | 34 hr |
| Aug 11, 8:27 AM MDT | Red Flag Warning | BOI | 13 hr |
| Aug 12, 3:24 AM MDT | Red Flag Warning | BOI | 19 hr |
| Aug 18, 2:10 PM MDT | Fire Weather Watch | BOI | 23 hr |
| Aug 19, 12:47 PM MDT | Red Flag Warning | BOI | 4 days |
| Aug 22, 4:15 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 22, 8:15 PM MDT | Severe Thunderstorm Warning | BOI | 60 min |
| Aug 22, 9:01 PM MDT | Special Weather Statement | BOI | 59 min |
| Aug 27, 9:47 PM MDT | Special Weather Statement | BOI | 43 min |
| Sep 1, 3:27 AM MDT | Flash Flood Watch | BOI | 69 hr |
| Sep 4, 8:50 AM MDT | Flash Flood Watch | BOI | 36 hr |
| Sep 4, 9:49 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Sep 5, 1:08 AM MDT | Special Weather Statement | BOI | 52 min |
| Sep 5, 8:08 AM MDT | Special Weather Statement | BOI | 52 min |
| Sep 5, 1:06 PM MDT | Mesoscale Discussion | SPC | 54 min |
| Sep 5, 1:35 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Sep 5, 4:11 PM MDT | Severe Thunderstorm Warning | BOI | 64 min |
| Sep 5, 4:52 PM MDT | Severe Thunderstorm Warning | BOI | 38 min |
| Sep 5, 4:55 PM MDT | Flash Flood Warning | BOI | 50 min |
| Sep 5, 5:01 PM MDT | Mesoscale Discussion | SPC | 89 min |
| Sep 13, 3:36 AM MDT | Flash Flood Watch | BOI | 19 hr |
| Sep 13, 10:15 PM MDT | Special Weather Statement | BOI | 60 min |
| Sep 14, 3:35 AM MDT | Flash Flood Watch | BOI | 18 hr |
| Sep 15, 7:04 PM MDT | Special Weather Statement | BOI | 56 min |
| Oct 3, 1:33 PM MDT | Frost Advisory | BOI | 14 hr |
| Oct 4, 3:21 AM MDT | Freeze Warning | BOI | 30 hr |
| Nov 15, 2:44 AM MST | Winter Weather Advisory | BOI | 32 hr |
| Dec 5, 3:16 PM MST | Winter Weather Advisory | BOI | 56 hr |
| Dec 16, 1:42 AM MST | Dense Fog Advisory | BOI | 12 hr |
| Dec 16, 2:08 PM MST | Dense Fog Advisory | BOI | 45 hr |
| Dec 19, 2:58 PM MST | Winter Weather Advisory | BOI | 35 hr |
| Dec 25, 8:46 AM MST | Dense Fog Advisory | BOI | 3 hr |
| Dec 25, 2:38 PM MST | Dense Fog Advisory | BOI | 20 hr |
| Dec 26, 7:04 PM MST | Dense Fog Advisory | BOI | 19 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 | 3 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 4 |
| Special Weather Statement | 7 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 4 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 10 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 2 |
| Frost Advisory | 2 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 20 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20122014
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.