Alert archive / Idaho / Cassia County
Weather alerts in Cassia County, Idaho, 2019
134 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Cassia County and its neighbors
Each county as a circle sized by its count in 2019. Tap one for its archive.
- Alerts
- 134
- Warnings
- 29
- Watches
- 15
- Advisories
- 33
- Busiest month
- September21 alerts
- Busiest day
- September 10, 201910 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Cassia County, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 10 | 3 | 70% | 19 | 79% | 18 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2019
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pocatello, ID: tornado warnings | 4 | 1 | 75% | 3 | 33% | 0 min |
| NWS Pocatello, ID: severe thunderstorm warnings | 35 | 8 | 77% | 88 | 40% | 16 min |
| NWS Pocatello, ID: flash flood warnings | 2 | 1 | 50% | 4 | 25% | 23 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 10, 5:42 AM MST | Winter Weather Advisory | PIH | 5 hr |
| Jan 11, 2:13 AM MST | Freezing Fog Advisory | PIH | 9 hr |
| Jan 12, 2:13 AM MST | Dense Fog Advisory | PIH | 8 hr |
| Jan 12, 10:05 PM MST | Dense Fog Advisory | PIH | 13 hr |
| Jan 15, 12:53 PM MST | Winter Weather Advisory | PIH | 22 hr |
| Jan 16, 1:32 PM MST | Winter Weather Advisory | PIH | 44 hr |
| Jan 17, 5:34 PM MST | Special Weather Statement | PIH | 26 min |
| Jan 17, 6:08 PM MST | Special Weather Statement | PIH | 22 min |
| Jan 19, 2:11 PM MST | Winter Weather Advisory | PIH | 45 hr |
| Jan 21, 3:24 PM MST | Special Weather Statement | PIH | 4 hr |
| Feb 2, 2:55 AM MST | Winter Weather Advisory | PIH | 4 days |
| Feb 9, 3:38 AM MST | Winter Weather Advisory | PIH | 45 hr |
| Feb 12, 3:41 AM MST | Winter Storm Watch | PIH | 10 hr |
| Feb 12, 3:41 AM MST | Winter Storm Warning | PIH | 3 days |
| Feb 12, 1:28 PM MST | Winter Weather Advisory | PIH | 47 hr |
| Feb 13, 1:24 PM MST | Flood Watch | PIH | 38 hr |
| Feb 19, 2:46 AM MST | Winter Weather Advisory | PIH | 42 hr |
| Feb 26, 2:54 PM MST | Areal Flood Advisory | PIH | 24 hr |
| Mar 7, 2:52 AM MST | Winter Weather Advisory | PIH | 51 hr |
| Mar 8, 3:26 AM MST | Winter Weather Advisory | PIH | 14 hr |
| Mar 12, 9:02 AM MDT | Wind Advisory | PIH | 34 hr |
| Mar 21, 1:41 PM MDT | Flood Watch | PIH | 3 days |
| Apr 8, 1:24 PM MDT | Wind Advisory | PIH | 57 hr |
| Apr 13, 2:14 PM MDT | Wind Advisory | PIH | 31 hr |
| Apr 24, 1:13 PM MDT | High Wind Watch | PIH | 38 hr |
| Apr 26, 2:45 AM MDT | Wind Advisory | PIH | 18 hr |
| Apr 27, 4:07 PM MDT | Freeze Watch | PIH | 21 hr |
| Apr 28, 1:15 PM MDT | Freeze Warning | PIH | 20 hr |
| Apr 30, 1:59 PM MDT | Freeze Warning | PIH | 19 hr |
| May 5, 3:54 PM MDT | Special Weather Statement | PIH | 81 min |
| May 6, 4:08 PM MDT | Special Weather Statement | PIH | 52 min |
| May 16, 9:47 AM MDT | Wind Advisory | PIH | 8 hr |
| May 24, 4:44 PM MDT | Special Weather Statement | PIH | 91 min |
| May 25, 3:46 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| May 26, 2:45 PM MDT | Mesoscale Discussion | SPC | 3 hr |
| May 28, 4:55 PM MDT | Special Weather Statement | PIH | 50 min |
| May 28, 5:43 PM MDT | Special Weather Statement | PIH | 62 min |
| May 28, 6:38 PM MDT | Special Weather Statement | PIH | 52 min |
| May 30, 12:00 PM MDT | Special Weather Statement | PIH | 60 min |
| May 30, 1:24 PM MDT | Special Weather Statement | PIH | 36 min |
| May 30, 3:30 PM MDT | Special Weather Statement | PIH | 60 min |
| May 30, 4:56 PM MDT | Special Weather Statement | PIH | 94 min |
| May 30, 6:25 PM MDT | Special Weather Statement | PIH | 65 min |
| May 31, 1:50 PM MDT | Special Weather Statement | PIH | 40 min |
| May 31, 2:23 PM MDT | Special Weather Statement | PIH | 22 min |
| May 31, 4:54 PM MDT | Special Weather Statement | PIH | 36 min |
| May 31, 7:43 PM MDT | Special Weather Statement | PIH | 62 min |
| Jun 1, 3:30 PM MDT | Special Weather Statement | PIH | 90 min |
| Jun 1, 4:19 PM MDT | Special Weather Statement | PIH | 41 min |
| Jun 2, 10:04 AM MDT | River Flood Warning | PIH | 51 hr |
| Jun 2, 3:19 PM MDT | Special Weather Statement | PIH | 56 min |
| Jun 3, 6:39 PM MDT | Special Weather Statement | PIH | 66 min |
| Jun 6, 1:54 PM MDT | Severe Thunderstorm Watch | SPC | 8 hr |
| Jun 6, 1:55 PM MDT | Special Weather Statement | SLC | 35 min |
| Jun 6, 2:18 PM MDT | Wind Advisory | PIH | 28 hr |
| Jun 6, 2:25 PM MDT | Special Weather Statement | PIH | 65 min |
| Jun 6, 2:42 PM MDT | Severe Thunderstorm Warning | PIH | 48 min |
| Jun 6, 2:57 PM MDT | Severe Thunderstorm Warning | PIH | 33 min |
| Jun 6, 3:17 PM MDT | Severe Thunderstorm Warning | PIH | 43 min |
| Jun 6, 6:45 PM MDT | Severe Thunderstorm Warning | PIH | 45 min |
| Jun 6, 9:55 PM MDT | Special Weather Statement | PIH | 50 min |
| Jun 8, 2:37 AM MDT | Freeze Warning | PIH | 29 hr |
| Jun 18, 1:40 PM MDT | Wind Advisory | PIH | 31 hr |
| Jun 18, 1:40 PM MDT | Wind Advisory | PIH | 53 hr |
| Jun 20, 4:35 AM MDT | High Wind Warning | PIH | 14 hr |
| Jul 7, 4:25 PM MDT | Special Weather Statement | PIH | 50 min |
| Jul 8, 4:50 PM MDT | Special Weather Statement | SLC | 25 min |
| Jul 12, 3:37 PM MDT | Special Weather Statement | PIH | 38 min |
| Jul 12, 4:32 PM MDT | Special Weather Statement | PIH | 43 min |
| Jul 12, 5:24 PM MDT | Special Weather Statement | PIH | 51 min |
| Jul 13, 2:27 AM MDT | Red Flag Warning | PIH | 20 hr |
| Jul 13, 4:39 PM MDT | Special Weather Statement | PIH | 51 min |
| Jul 13, 5:31 PM MDT | Special Weather Statement | PIH | 59 min |
| Jul 13, 8:24 PM MDT | Special Weather Statement | PIH | 66 min |
| Jul 14, 12:17 PM MDT | Red Flag Warning | PIH | 8 hr |
| Jul 14, 2:08 PM MDT | Special Weather Statement | PIH | 82 min |
| Jul 14, 4:08 PM MDT | Special Weather Statement | PIH | 52 min |
| Jul 21, 1:56 PM MDT | Heat Advisory | PIH | 30 hr |
| Jul 22, 4:38 AM MDT | Fire Weather Watch | PIH | 22 hr |
| Jul 23, 3:00 AM MDT | Red Flag Warning | PIH | 18 hr |
| Jul 29, 3:54 PM MDT | Mesoscale Discussion | SPC | 96 min |
| Jul 29, 3:55 PM MDT | Special Weather Statement | PIH | 50 min |
| Aug 1, 3:17 PM MDT | Areal Flood Advisory | PIH | 118 min |
| Aug 4, 6:04 PM MDT | Special Weather Statement | PIH | 41 min |
| Aug 5, 2:22 PM MDT | Special Weather Statement | PIH | 83 min |
| Aug 7, 2:25 PM MDT | Fire Weather Watch | PIH | 8 hr |
| Aug 7, 10:02 PM MDT | Red Flag Warning | PIH | 23 hr |
| Aug 8, 1:10 PM MDT | Flash Flood Watch | PIH | 7 hr |
| Aug 8, 5:48 PM MDT | Special Weather Statement | PIH | 42 min |
| Aug 16, 3:11 AM MDT | Fire Weather Watch | PIH | 11 hr |
| Aug 16, 2:06 PM MDT | Red Flag Warning | PIH | 31 hr |
| Aug 23, 1:35 PM MDT | Red Flag Warning | PIH | 55 hr |
| Aug 24, 2:33 AM MDT | Wind Advisory | PIH | 42 hr |
| Aug 31, 1:34 PM MDT | Red Flag Warning | PIH | 54 hr |
| Sep 4, 1:44 PM MDT | Special Weather Statement | PIH | 91 min |
| Sep 5, 12:58 PM MDT | Fire Weather Watch | PIH | 13 hr |
| Sep 6, 2:23 AM MDT | Red Flag Warning | PIH | 16 hr |
| Sep 6, 1:04 PM MDT | Mesoscale Discussion | SPC | 86 min |
| Sep 6, 2:20 PM MDT | Special Weather Statement | PIH | 40 min |
| Sep 8, 8:38 AM MDT | Special Weather Statement | PIH | 22 min |
| Sep 8, 8:57 AM MDT | Special Weather Statement | PIH | 33 min |
| Sep 9, 7:54 PM MDT | Severe Thunderstorm Warning | PIH | 51 min |
| Sep 10, 10:25 AM MDT | Special Weather Statement | PIH | 50 min |
| Sep 10, 12:14 PM MDT | Mesoscale Discussion | SPC | 2 hr |
| Sep 10, 3:02 PM MDT | Special Weather Statement | PIH | 28 min |
| Sep 10, 3:33 PM MDT | Special Weather Statement | PIH | 42 min |
| Sep 10, 3:41 PM MDT | Special Weather Statement | SLC | 19 min |
| Sep 10, 4:11 PM MDT | Special Weather Statement | SLC | 34 min |
| Sep 10, 4:14 PM MDT | Severe Thunderstorm Warning | PIH | 46 min |
| Sep 10, 4:53 PM MDT | Severe Thunderstorm Warning | PIH | 25 min |
| Sep 10, 5:17 PM MDT | Severe Thunderstorm Warning | PIH | 43 min |
| Sep 28, 4:02 AM MDT | Freeze Watch | PIH | 9 hr |
| Sep 28, 8:08 AM MDT | Flood Watch | PIH | 25 hr |
| Sep 28, 1:26 PM MDT | Freeze Warning | PIH | 45 hr |
| Sep 29, 3:57 AM MDT | Freeze Warning | PIH | 54 hr |
| Oct 1, 1:26 PM MDT | Freeze Warning | PIH | 20 hr |
| Oct 2, 1:36 PM MDT | Freeze Warning | PIH | 19 hr |
| Oct 3, 1:06 PM MDT | Wind Advisory | PIH | 32 hr |
| Oct 7, 1:58 PM MDT | Wind Advisory | PIH | 53 hr |
| Oct 18, 3:52 AM MDT | Wind Advisory | PIH | 14 hr |
| Oct 18, 1:40 PM MDT | Wind Advisory | PIH | 32 hr |
| Oct 19, 2:35 PM MDT | Severe Thunderstorm Warning | PIH | 40 min |
| Oct 19, 2:52 PM MDT | Severe Thunderstorm Warning | PIH | 38 min |
| Oct 19, 3:14 PM MDT | Special Weather Statement | PIH | 61 min |
| Oct 26, 2:08 PM MDT | Special Weather Statement | PIH | 3 hr |
| Oct 28, 1:56 PM MDT | Winter Weather Advisory | PIH | 23 hr |
| Nov 25, 5:51 AM MST | Special Weather Statement | PIH | 4 hr |
| Nov 25, 1:50 PM MST | Winter Storm Watch | PIH | 13 hr |
| Nov 26, 3:18 AM MST | Winter Storm Warning | PIH | 57 hr |
| Nov 26, 3:18 AM MST | Winter Weather Advisory | PIH | 50 hr |
| Nov 28, 4:37 AM MST | Winter Storm Watch | PIH | 8 hr |
| Nov 28, 12:55 PM MST | Winter Weather Advisory | PIH | 46 hr |
| Dec 14, 4:05 AM MST | Winter Weather Advisory | PIH | 10 hr |
| Dec 15, 8:15 AM MST | Special Weather Statement | PIH | 3 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 | 10 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 52 |
| Flooding | |
| River Flood Warning | 1 |
| Flash Flood Watch | 1 |
| Flood Watch | 3 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 2 |
| Winter Storm Watch | 3 |
| Winter Weather Advisory | 14 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 7 |
| Freeze Watch | 2 |
| Wind and dust | |
| High Wind Warning | 1 |
| High Wind Watch | 1 |
| Wind Advisory | 13 |
| Fire | |
| Red Flag Warning | 8 |
| Fire Weather Watch | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 2 |
| Freezing Fog Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20182020
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.