Alert archive / Idaho / Bannock County
Weather alerts in Bannock County, Idaho, 2018
82 weather alerts in 2018, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Bannock County and its neighbors
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Alerts
- 82
- Warnings
- 21
- Watches
- 10
- Advisories
- 24
- Busiest month
- August22 alerts
- Busiest day
- August 22, 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.
Bannock County, 2018
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 6 | 2 | 67% | 0 | ||
| Flash flood warnings | 1 | 1 | 0% | 9 | 56% | 40 min |
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 |
|---|---|---|---|
| Feb 15, 3:01 PM MST | Special Weather Statement | PIH | 44 min |
| Mar 23, 6:22 AM MDT | River Flood Watch | PIH | 21 days |
| Mar 23, 9:27 PM MDT | River Flood Warning | PIH | 5 days |
| Apr 7, 7:32 PM MDT | Special Weather Statement | PIH | 58 min |
| Apr 29, 6:32 AM MDT | River Flood Warning | PIH | 72 hr |
| May 16, 3:27 PM MDT | Severe Thunderstorm Warning | PIH | 38 min |
| May 17, 5:21 PM MDT | Severe Thunderstorm Warning | PIH | 39 min |
| May 17, 5:59 PM MDT | Severe Thunderstorm Warning | PIH | 46 min |
| May 18, 4:56 PM MDT | Special Weather Statement | PIH | 64 min |
| May 18, 5:17 PM MDT | Special Weather Statement | PIH | 43 min |
| May 18, 8:00 PM MDT | Flash Flood Warning | PIH | 3 hr |
| May 18, 10:39 PM MDT | Areal Flood Advisory | PIH | 3 hr |
| May 26, 10:09 PM MDT | Special Weather Statement | PIH | 51 min |
| May 27, 1:47 PM MDT | Special Weather Statement | PIH | 43 min |
| May 30, 1:48 PM MDT | Mesoscale Discussion | SPC | 117 min |
| May 30, 2:19 PM MDT | Special Weather Statement | PIH | 41 min |
| May 30, 2:32 PM MDT | Special Weather Statement | PIH | 28 min |
| May 30, 2:39 PM MDT | Severe Thunderstorm Warning | PIH | 51 min |
| May 30, 7:20 PM MDT | Special Weather Statement | PIH | 55 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, 4:35 PM MDT | Mesoscale Discussion | SPC | 85 min |
| Jun 17, 12:17 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Jun 23, 3:36 PM MDT | Special Weather Statement | PIH | 84 min |
| Jun 23, 5:20 PM MDT | Special Weather Statement | PIH | 55 min |
| Jul 9, 11:22 PM MDT | Special Weather Statement | PIH | 23 min |
| Jul 30, 2:33 AM MDT | Lake Wind Advisory | PIH | 10 hr |
| Jul 31, 2:51 PM MDT | Red Flag Warning | PIH | 30 hr |
| Aug 2, 9:41 PM MDT | Red Flag Warning | PIH | 24 hr |
| Aug 3, 2:59 AM MDT | Lake Wind Advisory | PIH | 17 hr |
| Aug 9, 1:31 PM MDT | Heat Advisory | PIH | 55 hr |
| Aug 14, 2:48 AM MDT | Red Flag Warning | PIH | 18 hr |
| 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 16, 7:25 PM MDT | Special Weather Statement | PIH | 35 min |
| Aug 17, 3:30 PM MDT | Special Weather Statement | PIH | 90 min |
| Aug 21, 1:33 PM MDT | Fire Weather Watch | PIH | 14 hr |
| Aug 22, 3:38 AM MDT | Red Flag Warning | PIH | 17 hr |
| Aug 22, 6:16 AM MDT | Special Weather Statement | PIH | 59 min |
| Aug 22, 6:32 AM MDT | Mesoscale Discussion | SPC | 118 min |
| Aug 22, 8:12 AM MDT | Severe Thunderstorm Warning | PIH | 48 min |
| Aug 22, 12:51 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Aug 22, 2:57 PM MDT | Mesoscale Discussion | SPC | 93 min |
| Aug 22, 3:12 PM MDT | Severe Thunderstorm Warning | PIH | 48 min |
| Aug 22, 4:13 PM MDT | Special Weather Statement | PIH | 62 min |
| Aug 22, 5:13 PM MDT | Mesoscale Discussion | SPC | 92 min |
| Aug 22, 8:23 PM MDT | Mesoscale Discussion | SPC | 67 min |
| Aug 23, 1:04 PM MDT | Red Flag Warning | PIH | 56 hr |
| Aug 26, 1:44 AM MDT | Lake Wind Advisory | PIH | 42 hr |
| Aug 26, 9:32 AM MDT | Lake Wind Advisory | PIH | 10 hr |
| Sep 13, 2:07 PM MDT | Fire Weather Watch | PIH | 24 hr |
| Sep 13, 2:07 PM MDT | Red Flag Warning | PIH | 31 hr |
| Sep 14, 2:14 PM MDT | Red Flag Warning | PIH | 31 hr |
| Sep 15, 8:33 AM MDT | Wind Advisory | PIH | 12 hr |
| Sep 15, 2:08 PM MDT | Red Flag Warning | PIH | 31 hr |
| Sep 15, 9:03 PM MDT | Wind Advisory | PIH | 117 min |
| 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 |
| Sep 29, 8:37 AM MDT | Red Flag Warning | PIH | 11 hr |
| Sep 30, 1:24 PM MDT | Flash Flood Watch | PIH | 57 hr |
| Oct 2, 2:08 PM MDT | Special Weather Statement | PIH | 52 min |
| Oct 4, 2:26 AM MDT | Wind Advisory | PIH | 19 hr |
| Oct 7, 3:55 AM MDT | Freeze Warning | PIH | 30 hr |
| Oct 24, 5:06 AM MDT | Dense Fog Advisory | PIH | 7 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 Weather Advisory | PIH | 41 hr |
| Nov 23, 1:42 PM MST | Wind Advisory | PIH | 19 hr |
| Nov 29, 2:09 PM MST | Winter Weather Advisory | PIH | 37 hr |
| Dec 3, 6:50 AM MST | Special Weather Statement | PIH | 55 min |
| Dec 10, 2:01 PM MST | Winter Weather Advisory | PIH | 48 hr |
| Dec 21, 11:34 AM MST | Wind Advisory | PIH | 3 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 29, 1:01 PM MST | Winter Weather Advisory | PIH | 31 hr |
| Dec 29, 5:59 PM MST | Winter Weather Advisory | PIH | 3 hr |
| Dec 30, 11:31 AM MST | Mesoscale Discussion | SPC | 6 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 | 6 |
| Severe Thunderstorm Watch | 2 |
| Mesoscale Discussion | 9 |
| Special Weather Statement | 18 |
| Flooding | |
| Flash Flood Warning | 1 |
| River Flood Warning | 2 |
| Flash Flood Watch | 1 |
| River Flood Watch | 1 |
| Areal Flood Advisory | 1 |
| Winter | |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 7 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Frost Advisory | 3 |
| Wind and dust | |
| Lake Wind Advisory | 4 |
| Wind Advisory | 7 |
| Fire | |
| Red Flag Warning | 11 |
| Fire Weather Watch | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 1 |
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.