Alert archive / Idaho / Cassia County
Weather alerts in Cassia County, Idaho, 2010
29 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 29
- Warnings
- 7
- Watches
- 1
- Advisories
- 1
- Busiest month
- July11 alerts
- Busiest day
- July 30, 20104 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, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 7 | 1 | 86% | 1 | 100% | 41 min |
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pocatello, ID: tornado warnings | 2 | 0 | 100% | 0 | ||
| NWS Pocatello, ID: severe thunderstorm warnings | 59 | 15 | 75% | 49 | 47% | 26 min |
| NWS Pocatello, ID: flash flood warnings | 4 | 0 | 100% | 2 | 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 26, 4:07 AM MST | Special Weather Statement | PIH | 113 min |
| Jan 26, 6:44 AM MST | Special Weather Statement | PIH | 2 hr |
| Feb 7, 6:35 AM MST | Special Weather Statement | PIH | 3 hr |
| Apr 8, 1:14 PM MDT | Special Weather Statement | PIH | 3 hr |
| Apr 20, 6:47 PM MDT | Special Weather Statement | PIH | 88 min |
| Apr 20, 11:35 PM MDT | Special Weather Statement | PIH | 55 min |
| Apr 27, 7:40 PM MDT | Special Weather Statement | SLC | 20 min |
| May 12, 3:45 PM MDT | Special Weather Statement | PIH | 45 min |
| Jun 15, 3:57 PM MDT | Special Weather Statement | PIH | 63 min |
| Jun 20, 4:09 PM MDT | Severe Thunderstorm Warning | PIH | 33 min |
| Jun 20, 4:48 PM MDT | Severe Thunderstorm Warning | PIH | 13 min |
| Jun 25, 10:14 PM MDT | Special Weather Statement | PIH | 46 min |
| Jun 30, 1:28 PM MDT | Mesoscale Discussion | SPC | 62 min |
| Jul 27, 4:36 PM MDT | Special Weather Statement | PIH | 54 min |
| Jul 27, 5:27 PM MDT | Severe Thunderstorm Warning | PIH | 48 min |
| Jul 28, 1:41 PM MDT | Severe Thunderstorm Watch | SPC | 7 hr |
| Jul 28, 4:41 PM MDT | Special Weather Statement | PIH | 64 min |
| Jul 29, 4:28 PM MDT | Special Weather Statement | PIH | 62 min |
| Jul 29, 5:17 PM MDT | Special Weather Statement | PIH | 43 min |
| Jul 29, 5:58 PM MDT | Severe Thunderstorm Warning | PIH | 47 min |
| Jul 30, 1:53 PM MDT | Mesoscale Discussion | SPC | 67 min |
| Jul 30, 3:45 PM MDT | Special Weather Statement | PIH | 60 min |
| Jul 30, 4:04 PM MDT | Severe Thunderstorm Warning | PIH | 29 min |
| Jul 30, 4:57 PM MDT | Severe Thunderstorm Warning | PIH | 48 min |
| Aug 5, 4:15 PM MDT | Severe Thunderstorm Warning | PIH | 45 min |
| Aug 5, 6:41 PM MDT | Special Weather Statement | PIH | 49 min |
| Aug 5, 7:03 PM MDT | Areal Flood Advisory | PIH | 3 hr |
| Aug 7, 5:09 PM MDT | Special Weather Statement | PIH | 81 min |
| Dec 17, 5:58 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 | 7 |
| Severe Thunderstorm Watch | 1 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 18 |
| Flooding | |
| Areal Flood Advisory | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20092011
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.