Alert archive / Idaho / Blaine County
Weather alerts in Blaine County, Idaho, 2020
122 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Blaine County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 122
- Warnings
- 40
- Watches
- 14
- Advisories
- 49
- Busiest month
- August22 alerts
- Busiest day
- August 25, 20207 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Blaine County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 12 | 6 | 50% | 11 | 36% | 24 min |
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pocatello, ID: tornado warnings | 5 | 0 | 100% | 0 | ||
| NWS Pocatello, ID: severe thunderstorm warnings | 52 | 19 | 63% | 158 | 41% | 21 min |
| NWS Pocatello, ID: flash flood warnings | 1 | 0 | 100% | 0 |
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 9, 2:57 AM MST | Winter Storm Watch | PIH | 31 hr |
| Jan 10, 9:45 AM MST | Winter Storm Warning | PIH | 5 days |
| Jan 10, 9:45 AM MST | Winter Weather Advisory | PIH | 34 hr |
| Jan 12, 11:05 AM MST | Winter Weather Advisory | PIH | 30 hr |
| Jan 13, 1:07 PM MST | Winter Weather Advisory | PIH | 33 hr |
| Jan 14, 6:43 PM MST | Snow Squall Warning | PIH | 32 min |
| Jan 15, 2:21 AM MST | Winter Weather Advisory | PIH | 22 hr |
| Jan 15, 2:00 PM MST | Winter Weather Advisory | PIH | 52 hr |
| Jan 17, 1:25 AM MST | Special Weather Statement | PIH | 4 hr |
| Feb 1, 2:45 PM MST | Winter Weather Advisory | PIH | 51 hr |
| Feb 4, 2:35 PM MST | Winter Weather Advisory | PIH | 72 hr |
| Feb 6, 2:32 AM MST | Wind Advisory | PIH | 40 hr |
| Feb 8, 10:04 AM MST | Wind Advisory | PIH | 8 hr |
| Feb 14, 1:45 PM MST | Winter Weather Advisory | PIH | 56 hr |
| Feb 16, 1:50 AM MST | Wind Advisory | PIH | 18 hr |
| Feb 23, 4:10 AM MST | Wind Advisory | PIH | 22 hr |
| Feb 23, 7:08 PM MST | Special Weather Statement | PIH | 112 min |
| Feb 23, 9:20 PM MST | Special Weather Statement | PIH | 115 min |
| Mar 6, 2:43 AM MST | Winter Weather Advisory | PIH | 44 hr |
| Mar 13, 1:32 PM MDT | Winter Weather Advisory | PIH | 52 hr |
| Mar 29, 2:05 PM MDT | Winter Weather Advisory | PIH | 52 hr |
| Mar 30, 2:15 PM MDT | Wind Advisory | PIH | 28 hr |
| Apr 10, 4:13 AM MDT | Wind Advisory | PIH | 42 hr |
| Apr 14, 2:19 PM MDT | Wind Advisory | PIH | 28 hr |
| Apr 22, 1:20 PM MDT | Wind Advisory | PIH | 33 hr |
| Apr 26, 1:53 PM MDT | Wind Advisory | PIH | 31 hr |
| Apr 30, 2:58 PM MDT | Mesoscale Discussion | SPC | 92 min |
| Apr 30, 4:29 PM MDT | Severe Thunderstorm Warning | PIH | 46 min |
| Apr 30, 4:39 PM MDT | Severe Thunderstorm Warning | PIH | 51 min |
| Apr 30, 5:17 PM MDT | Severe Thunderstorm Warning | PIH | 43 min |
| Apr 30, 5:17 PM MDT | Severe Thunderstorm Warning | PIH | 43 min |
| Apr 30, 5:59 PM MDT | Severe Thunderstorm Warning | PIH | 46 min |
| May 4, 3:11 AM MDT | Frost Advisory | PIH | 30 hr |
| May 4, 2:34 PM MDT | High Wind Watch | PIH | 23 hr |
| May 5, 2:03 PM MDT | High Wind Warning | PIH | 31 hr |
| May 5, 2:03 PM MDT | Wind Advisory | PIH | 31 hr |
| May 6, 1:35 PM MDT | Freeze Warning | PIH | 19 hr |
| May 7, 1:44 PM MDT | Frost Advisory | PIH | 18 hr |
| May 19, 4:35 PM MDT | Special Weather Statement | PIH | 25 min |
| May 19, 4:53 PM MDT | Special Weather Statement | PIH | 37 min |
| May 29, 2:12 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 31, 11:13 AM MDT | River Flood Advisory | PIH | 46 hr |
| Jun 7, 2:35 AM MDT | Winter Weather Advisory | PIH | 33 hr |
| Jun 8, 2:21 AM MDT | Frost Advisory | PIH | 30 hr |
| Jun 8, 2:21 AM MDT | Wind Advisory | PIH | 18 hr |
| Jun 11, 1:34 PM MDT | Wind Advisory | PIH | 52 hr |
| Jun 15, 1:13 PM MDT | Winter Weather Advisory | PIH | 47 hr |
| Jun 25, 3:46 PM MDT | Flash Flood Warning | PIH | 115 min |
| Jun 25, 5:38 PM MDT | Severe Thunderstorm Warning | PIH | 29 min |
| Jul 3, 4:58 PM MDT | Special Weather Statement | PIH | 47 min |
| Jul 3, 5:08 PM MDT | Special Weather Statement | PIH | 37 min |
| Jul 11, 2:34 PM MDT | Red Flag Warning | PIH | 30 hr |
| Jul 12, 2:56 PM MDT | Red Flag Warning | PIH | 30 hr |
| Jul 16, 1:52 PM MDT | Red Flag Warning | PIH | 31 hr |
| Jul 17, 1:09 PM MDT | Red Flag Warning | PIH | 32 hr |
| Jul 20, 2:10 PM MDT | Fire Weather Watch | PIH | 23 hr |
| Jul 21, 12:48 PM MDT | Red Flag Warning | PIH | 32 hr |
| Jul 23, 5:00 PM MDT | Mesoscale Discussion | SPC | 90 min |
| Jul 23, 6:25 PM MDT | Severe Thunderstorm Warning | PIH | 50 min |
| Jul 23, 8:04 PM MDT | Special Weather Statement | PIH | 56 min |
| Jul 26, 1:07 PM MDT | Fire Weather Watch | PIH | 25 hr |
| Jul 27, 1:52 PM MDT | Red Flag Warning | PIH | 28 hr |
| Jul 29, 2:30 AM MDT | Heat Advisory | PIH | 5 days |
| Aug 2, 12:54 PM MDT | Red Flag Warning | PIH | 32 hr |
| Aug 5, 1:14 PM MDT | Red Flag Warning | PIH | 32 hr |
| Aug 9, 12:03 PM MDT | Fire Weather Watch | PIH | 24 hr |
| Aug 10, 11:47 AM MDT | Red Flag Warning | PIH | 33 hr |
| Aug 14, 1:33 PM MDT | Heat Advisory | PIH | 5 days |
| Aug 17, 12:22 PM MDT | Red Flag Warning | PIH | 34 hr |
| Aug 19, 1:41 PM MDT | Red Flag Warning | PIH | 31 hr |
| Aug 25, 3:28 AM MDT | Red Flag Warning | PIH | 18 hr |
| Aug 25, 1:18 PM MDT | Mesoscale Discussion | SPC | 117 min |
| Aug 25, 3:20 PM MDT | Severe Thunderstorm Warning | PIH | 40 min |
| Aug 25, 3:55 PM MDT | Severe Thunderstorm Warning | PIH | 50 min |
| Aug 25, 3:59 PM MDT | Special Weather Statement | PIH | 46 min |
| Aug 25, 4:37 PM MDT | Severe Thunderstorm Warning | PIH | 38 min |
| Aug 25, 5:09 PM MDT | Severe Thunderstorm Warning | PIH | 51 min |
| Aug 26, 3:29 AM MDT | Red Flag Warning | PIH | 41 hr |
| Aug 26, 6:37 PM MDT | Severe Thunderstorm Warning | PIH | 38 min |
| Aug 26, 7:04 PM MDT | Mesoscale Discussion | SPC | 116 min |
| Aug 26, 7:16 PM MDT | Special Weather Statement | PIH | 44 min |
| Aug 26, 8:03 PM MDT | Special Weather Statement | PIH | 57 min |
| Aug 26, 8:38 PM MDT | Special Weather Statement | PIH | 52 min |
| Aug 28, 2:22 AM MDT | Fire Weather Watch | PIH | 10 hr |
| Aug 28, 12:34 PM MDT | Red Flag Warning | PIH | 56 hr |
| Sep 3, 1:36 PM MDT | Fire Weather Watch | PIH | 25 hr |
| Sep 3, 3:19 PM MDT | Heat Advisory | PIH | 54 hr |
| Sep 4, 1:11 AM MDT | Fire Weather Watch | PIH | 14 hr |
| Sep 4, 3:03 PM MDT | Red Flag Warning | PIH | 30 hr |
| Sep 4, 3:03 PM MDT | Red Flag Warning | PIH | 54 hr |
| Sep 5, 1:45 PM MDT | High Wind Watch | PIH | 24 hr |
| Sep 6, 2:23 AM MDT | Red Flag Warning | PIH | 43 hr |
| Sep 6, 1:42 PM MDT | High Wind Warning | PIH | 40 hr |
| Sep 6, 1:42 PM MDT | Wind Advisory | PIH | 40 hr |
| Sep 7, 1:22 PM MDT | Freeze Warning | PIH | 44 hr |
| Sep 8, 5:45 AM MDT | Wind Advisory | PIH | 8 hr |
| Sep 15, 2:06 PM MDT | Fire Weather Watch | PIH | 24 hr |
| Sep 16, 1:50 PM MDT | Red Flag Warning | PIH | 55 hr |
| Sep 19, 1:54 PM MDT | Special Weather Statement | PIH | 51 min |
| Sep 19, 2:56 PM MDT | Special Weather Statement | PIH | 49 min |
| Sep 25, 2:22 AM MDT | Wind Advisory | PIH | 40 hr |
| Sep 27, 2:21 AM MDT | Frost Advisory | PIH | 31 hr |
| Oct 12, 7:49 PM MDT | Wind Advisory | PIH | 39 hr |
| Oct 13, 2:11 PM MDT | Freeze Watch | PIH | 12 hr |
| Oct 14, 2:05 AM MDT | Freeze Warning | PIH | 31 hr |
| Oct 14, 11:06 AM MDT | Wind Advisory | PIH | 8 hr |
| Oct 16, 1:41 PM MDT | Wind Advisory | PIH | 30 hr |
| Oct 17, 2:02 AM MDT | Wind Advisory | PIH | 42 hr |
| Oct 20, 1:44 AM MDT | Wind Advisory | PIH | 42 hr |
| Oct 23, 2:29 AM MDT | Wind Advisory | PIH | 43 hr |
| Nov 6, 4:05 AM MST | Winter Storm Watch | PIH | 23 hr |
| Nov 7, 2:54 AM MST | Winter Weather Advisory | PIH | 38 hr |
| Nov 11, 2:19 PM MST | Winter Storm Watch | PIH | 25 hr |
| Nov 12, 3:26 PM MST | Winter Storm Warning | PIH | 35 hr |
| Nov 12, 3:26 PM MST | Winter Weather Advisory | PIH | 46 hr |
| Nov 14, 2:20 AM MST | Wind Advisory | PIH | 15 hr |
| Nov 14, 2:36 PM MST | Winter Weather Advisory | PIH | 32 hr |
| Nov 16, 1:31 PM MST | Winter Storm Watch | PIH | 13 hr |
| Nov 17, 2:43 AM MST | Winter Storm Warning | PIH | 44 hr |
| Dec 1, 1:34 PM MST | Air Stagnation Advisory | PIH | 8 days |
| Dec 21, 1:40 PM MST | Wind Advisory | PIH | 27 hr |
| Dec 25, 1:31 PM MST | Winter Weather Advisory | PIH | 39 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 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 14 |
| Flooding | |
| Flash Flood Warning | 1 |
| River Flood Advisory | 1 |
| Winter | |
| Snow Squall Warning | 1 |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 17 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 3 |
| Freeze Watch | 1 |
| Frost Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 2 |
| High Wind Watch | 2 |
| Wind Advisory | 23 |
| Fire | |
| Red Flag Warning | 18 |
| Fire Weather Watch | 7 |
| Fog and smoke | |
| Air Stagnation Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.