Alert archive / California / Kern County
Weather alerts in Kern County, California, 2012
35 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Kern County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 35
- Warnings
- 10
- Watches
- 1
- Advisories
- 8
- Busiest month
- December7 alerts
- Busiest day
- December 27, 20124 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Kern County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 5 | 1 | 80% | 5 | 20% | 34 min |
| Flash flood warnings | 2 | 0 | 100% | 3 | 0% |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Hanford, CA: tornado warnings | 1 | 0 | 100% | 4 | 0% | |
| NWS Hanford, CA: severe thunderstorm warnings | 14 | 6 | 57% | 17 | 53% | 18 min |
| NWS Hanford, CA: flash flood warnings | 2 | 0 | 100% | 9 | 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, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 6, 1:30 PM PST | Special Weather Statement | HNX | 15 hr |
| Jan 7, 3:53 AM PST | Special Weather Statement | HNX | 12 hr |
| Jan 23, 4:42 PM PST | Special Weather Statement | HNX | 48 min |
| Feb 3, 11:17 AM PST | Special Weather Statement | HNX | 6 hr |
| Feb 13, 11:55 AM PST | Special Weather Statement | HNX | 35 min |
| Apr 11, 2:49 PM PDT | Special Weather Statement | HNX | 56 min |
| Apr 13, 1:19 PM PDT | Areal Flood Advisory | HNX | 6 hr |
| Apr 13, 3:09 PM PDT | Areal Flood Advisory | HNX | 4 hr |
| Apr 25, 9:18 PM PDT | Special Weather Statement | HNX | 42 min |
| Apr 25, 9:46 PM PDT | Severe Thunderstorm Warning | HNX | 29 min |
| Jun 4, 3:26 PM PDT | Special Weather Statement | HNX | 3 hr |
| Jun 17, 9:05 AM PDT | Red Flag Warning | HNX | 35 hr |
| Jul 8, 11:40 AM PDT | Red Flag Warning | HNX | 8 hr |
| Jul 11, 3:11 PM PDT | Fire Weather Watch | HNX | 12 hr |
| Jul 12, 2:48 AM PDT | Red Flag Warning | HNX | 26 hr |
| Jul 13, 3:53 PM PDT | Flash Flood Warning | HNX | 112 min |
| Aug 11, 5:34 PM PDT | Special Weather Statement | HNX | 41 min |
| Aug 12, 5:33 PM PDT | Severe Thunderstorm Warning | HNX | 27 min |
| Aug 22, 5:55 PM PDT | Areal Flood Advisory | HNX | 108 min |
| Aug 30, 3:26 PM PDT | Severe Thunderstorm Warning | HNX | 34 min |
| Aug 30, 4:04 PM PDT | Areal Flood Advisory | HNX | 6 hr |
| Aug 30, 4:29 PM PDT | Flash Flood Warning | HNX | 96 min |
| Sep 10, 2:34 PM PDT | Special Weather Statement | HNX | 56 min |
| Sep 10, 4:25 PM PDT | Severe Thunderstorm Warning | HNX | 35 min |
| Sep 10, 5:03 PM PDT | Severe Thunderstorm Warning | HNX | 27 min |
| Oct 11, 10:09 AM PDT | Areal Flood Advisory | HNX | 6 hr |
| Oct 11, 3:30 PM PDT | Areal Flood Advisory | HNX | 3 hr |
| Oct 11, 4:00 PM PDT | Areal Flood Advisory | HNX | 3 hr |
| Dec 2, 4:08 PM PST | Areal Flood Advisory | HNX | 3 hr |
| Dec 27, 6:25 AM PST | Special Weather Statement | HNX | 3 hr |
| Dec 27, 9:00 AM PST | Special Weather Statement | HNX | 2 hr |
| Dec 27, 12:41 PM PST | Special Weather Statement | HNX | 3 hr |
| Dec 27, 3:45 PM PST | Special Weather Statement | HNX | 2 hr |
| Dec 27, 4:06 PM PST | Special Weather Statement | HNX | 114 min |
| Dec 30, 2:01 PM PST | Special Weather Statement | HNX | 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 | 5 |
| Special Weather Statement | 16 |
| Flooding | |
| Flash Flood Warning | 2 |
| Areal Flood Advisory | 8 |
| Fire | |
| Red Flag Warning | 3 |
| Fire Weather Watch | 1 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20112013
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.