Alert archive / Idaho / Blaine County
Weather alerts in Blaine County, Idaho, 2018
77 weather alerts in 2018, 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 2018. Tap one for its archive.
- Alerts
- 77
- Warnings
- 38
- Watches
- 9
- Advisories
- 20
- Busiest month
- May23 alerts
- Busiest day
- May 31, 20189 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 2 tornado warnings covering Blaine County in 2018 had a tornado report inside them.
Blaine County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 2 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 15 | 4 | 73% | 2 | 0% | |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pocatello, ID: tornado warnings | 10 | 3 | 70% | 14 | 14% | 12 min |
| NWS Pocatello, ID: severe thunderstorm warnings | 65 | 20 | 69% | 106 | 70% | 17 min |
| NWS Pocatello, ID: flash flood warnings | 1 | 1 | 0% | 21 | 24% | 40 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 |
|---|---|---|---|
| Mar 13, 10:53 PM MDT | Areal Flood Advisory | PIH | 48 hr |
| Mar 22, 12:08 PM MDT | Areal Flood Advisory | PIH | 9 hr |
| Mar 22, 3:50 PM MDT | Areal Flood Warning | PIH | 3 hr |
| Mar 22, 3:56 PM MDT | Areal Flood Warning | PIH | 44 hr |
| Mar 22, 6:16 PM MDT | Areal Flood Warning | PIH | 18 hr |
| Mar 22, 8:16 PM MDT | River Flood Warning | PIH | 18 hr |
| Apr 7, 4:37 PM MDT | Special Weather Statement | PIH | 53 min |
| Apr 7, 5:44 PM MDT | Special Weather Statement | PIH | 46 min |
| May 8, 2:41 PM MDT | River Flood Advisory | PIH | 18 days |
| May 16, 2:11 PM MDT | Severe Thunderstorm Warning | PIH | 38 min |
| May 20, 1:23 PM MDT | Severe Thunderstorm Warning | PIH | 67 min |
| May 20, 1:30 PM MDT | Severe Thunderstorm Warning | PIH | 60 min |
| May 20, 2:07 PM MDT | Severe Thunderstorm Warning | PIH | 38 min |
| May 20, 2:26 PM MDT | Severe Thunderstorm Warning | PIH | 49 min |
| May 20, 3:01 PM MDT | Severe Thunderstorm Warning | PIH | 44 min |
| May 20, 3:40 PM MDT | Severe Thunderstorm Warning | PIH | 50 min |
| May 22, 4:48 PM MDT | Severe Thunderstorm Warning | PIH | 22 min |
| May 26, 5:30 AM MDT | River Flood Warning | PIH | 4 days |
| May 26, 12:07 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 26, 4:36 PM MDT | Severe Thunderstorm Warning | PIH | 24 min |
| May 26, 5:38 PM MDT | Special Weather Statement | PIH | 52 min |
| May 30, 10:54 AM MDT | River Flood Warning | PIH | 50 hr |
| May 30, 8:19 PM MDT | Special Weather Statement | PIH | 56 min |
| May 31, 12:33 PM MDT | Mesoscale Discussion | SPC | 117 min |
| May 31, 1:10 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| May 31, 2:42 PM MDT | Severe Thunderstorm Warning | PIH | 48 min |
| May 31, 3:02 PM MDT | Severe Thunderstorm Warning | PIH | 43 min |
| May 31, 3:12 PM MDT | Tornado Warning | PIH | 33 min |
| May 31, 3:27 PM MDT | Tornado Warning | PIH | 34 min |
| May 31, 3:57 PM MDT | Severe Thunderstorm Warning | PIH | 44 min |
| May 31, 5:22 PM MDT | Severe Thunderstorm Warning | PIH | 38 min |
| Jun 1, 1:16 PM MDT | River Flood Advisory | PIH | 11 days |
| Aug 1, 9:19 PM MDT | Red Flag Warning | PIH | 24 hr |
| Aug 2, 9:41 PM MDT | Red Flag Warning | PIH | 24 hr |
| Aug 5, 6:07 AM MDT | Special Weather Statement | PIH | 53 min |
| Aug 8, 1:55 PM MDT | Fire Weather Watch | PIH | 24 hr |
| Aug 9, 1:31 PM MDT | Heat Advisory | PIH | 55 hr |
| Aug 9, 2:14 PM MDT | Red Flag Warning | PIH | 3 days |
| Aug 15, 2:03 PM MDT | Fire Weather Watch | PIH | 24 hr |
| Aug 16, 3:39 AM MDT | Red Flag Warning | PIH | 48 hr |
| Aug 17, 1:41 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Aug 17, 1:53 PM MDT | Special Weather Statement | PIH | 52 min |
| Aug 17, 5:31 PM MDT | Special Weather Statement | PIH | 44 min |
| Aug 17, 5:51 PM MDT | Severe Thunderstorm Warning | PIH | 39 min |
| Aug 17, 6:19 PM MDT | Severe Thunderstorm Warning | PIH | 41 min |
| Aug 19, 1:52 PM MDT | Fire Weather Watch | PIH | 13 hr |
| Aug 19, 1:52 PM MDT | Red Flag Warning | PIH | 30 hr |
| Aug 23, 1:04 PM MDT | Red Flag Warning | PIH | 56 hr |
| Sep 6, 1:52 PM MDT | Fire Weather Watch | PIH | 25 hr |
| Sep 7, 2:30 PM MDT | Red Flag Warning | PIH | 31 hr |
| Sep 9, 1:37 PM MDT | Red Flag Warning | PIH | 31 hr |
| Sep 15, 2:08 PM MDT | Red Flag Warning | PIH | 31 hr |
| Sep 17, 8:58 AM MDT | Red Flag Warning | PIH | 11 hr |
| Sep 20, 12:48 PM MDT | Fire Weather Watch | PIH | 23 hr |
| Sep 21, 11:40 AM MDT | Red Flag Warning | PIH | 32 hr |
| Sep 23, 4:32 AM MDT | Frost Advisory | PIH | 28 hr |
| Sep 23, 4:32 AM MDT | Freeze Watch | PIH | 33 hr |
| Sep 24, 1:29 PM MDT | Frost Advisory | PIH | 20 hr |
| Sep 25, 1:35 PM MDT | Frost Advisory | PIH | 19 hr |
| Oct 7, 3:55 AM MDT | Freeze Warning | PIH | 30 hr |
| Oct 11, 2:11 PM MDT | Freeze Warning | PIH | 20 hr |
| Oct 12, 1:12 PM MDT | Frost Advisory | PIH | 20 hr |
| Oct 13, 9:28 AM MDT | Hard Freeze Warning | PIH | 26 hr |
| Nov 1, 2:50 AM MDT | Wind Advisory | PIH | 41 hr |
| Nov 3, 2:05 AM MDT | Wind Advisory | PIH | 40 hr |
| Nov 20, 1:23 PM MST | Winter Storm Watch | PIH | 48 hr |
| Nov 22, 1:01 PM MST | Winter Storm Warning | PIH | 47 hr |
| Nov 22, 1:01 PM MST | Winter Weather Advisory | PIH | 41 hr |
| Dec 1, 3:27 AM MST | Winter Weather Advisory | PIH | 32 hr |
| Dec 10, 2:01 PM MST | Winter Weather Advisory | PIH | 48 hr |
| Dec 17, 1:32 PM MST | Winter Weather Advisory | PIH | 44 hr |
| Dec 24, 4:50 AM MST | Winter Weather Advisory | PIH | 47 hr |
| Dec 26, 3:53 AM MST | Winter Weather Advisory | PIH | 40 hr |
| Dec 28, 1:09 PM MST | Winter Storm Watch | PIH | 24 hr |
| Dec 29, 1:01 PM MST | Winter Weather Advisory | PIH | 31 hr |
| Dec 29, 1:09 PM MST | Wind Advisory | PIH | 28 hr |
| Dec 29, 5:59 PM MST | Winter Weather Advisory | PIH | 3 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20172019
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.