Alert archive / California / Kern County
Weather alerts in Kern County, California, 2010
45 weather alerts in 2010, 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 2010. Tap one for its archive.
- Alerts
- 45
- Warnings
- 14
- Watches
- 0
- Advisories
- 18
- Busiest month
- October15 alerts
- Busiest day
- August 26, 20105 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 1 tornado reports fell inside a warning.
Kern County, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 1 | 0% | |||
| Severe thunderstorm warnings | 5 | 0 | 100% | 4 | 0% | |
| Flash flood warnings | 5 | 0 | 100% | 3 | 0% |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Hanford, CA: tornado warnings | 1 | 1 | 0% | 2 | 50% | 0 min |
| NWS Hanford, CA: severe thunderstorm warnings | 6 | 0 | 100% | 12 | 0% | |
| NWS Hanford, CA: flash flood warnings | 6 | 0 | 100% | 3 | 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 18, 12:28 PM PST | Severe Thunderstorm Warning | HNX | 47 min |
| Jan 18, 1:39 PM PST | Areal Flood Advisory | HNX | 3 hr |
| Jan 18, 1:45 PM PST | Special Weather Statement | HNX | 60 min |
| Jan 19, 11:34 AM PST | Areal Flood Advisory | HNX | 9 hr |
| Jan 19, 2:09 PM PST | Areal Flood Advisory | HNX | 6 hr |
| Jan 20, 9:14 AM PST | Areal Flood Advisory | HNX | 32 hr |
| Jan 20, 6:40 PM PST | Special Weather Statement | HNX | 65 min |
| Jan 21, 12:27 PM PST | Areal Flood Advisory | HNX | 2 hr |
| Jan 21, 6:06 PM PST | Areal Flood Advisory | HNX | 24 hr |
| Feb 6, 3:35 PM PST | Areal Flood Advisory | HNX | 3 hr |
| Feb 9, 3:27 PM PST | Areal Flood Advisory | HNX | 3 hr |
| Feb 27, 10:24 AM PST | Areal Flood Advisory | HNX | 6 hr |
| Apr 20, 10:54 PM PDT | Special Weather Statement | HNX | 66 min |
| Jul 15, 7:00 PM PDT | Areal Flood Advisory | HNX | 3 hr |
| Aug 25, 4:04 PM PDT | Special Weather Statement | HNX | 86 min |
| Aug 25, 5:19 PM PDT | Flash Flood Warning | HNX | 107 min |
| Aug 26, 1:20 PM PDT | Special Weather Statement | HNX | 70 min |
| Aug 26, 1:29 PM PDT | Flash Flood Warning | HNX | 107 min |
| Aug 26, 2:47 PM PDT | Severe Thunderstorm Warning | HNX | 43 min |
| Aug 26, 3:21 PM PDT | Flash Flood Warning | HNX | 71 min |
| Oct 1, 1:21 PM PDT | Mesoscale Discussion | SPC | 84 min |
| Oct 1, 1:48 PM PDT | Areal Flood Advisory | HNX | 6 hr |
| Oct 2, 1:06 PM PDT | Severe Thunderstorm Warning | HNX | 32 min |
| Oct 2, 1:46 PM PDT | Special Weather Statement | HNX | 29 min |
| Oct 2, 1:57 PM PDT | Special Weather Statement | HNX | 33 min |
| Oct 2, 2:31 PM PDT | Flash Flood Warning | HNX | 3 hr |
| Oct 3, 11:45 PM PDT | Mesoscale Discussion | SPC | 90 min |
| Oct 6, 5:37 PM PDT | Areal Flood Advisory | HNX | 6 hr |
| Oct 17, 3:55 PM PDT | Special Weather Statement | HNX | 35 min |
| Oct 17, 4:48 PM PDT | Areal Flood Advisory | HNX | 3 hr |
| Oct 19, 2:28 AM PDT | Special Weather Statement | HNX | 32 min |
| Oct 19, 4:59 PM PDT | Special Weather Statement | HNX | 31 min |
| Oct 19, 5:09 PM PDT | Severe Thunderstorm Warning | HNX | 51 min |
| Oct 19, 5:32 PM PDT | Severe Thunderstorm Warning | HNX | 43 min |
| Oct 19, 6:15 PM PDT | Special Weather Statement | HNX | 60 min |
| Nov 21, 1:03 AM PST | Areal Flood Advisory | HNX | 4 hr |
| Dec 18, 7:18 PM PST | Areal Flood Advisory | HNX | 10 hr |
| Dec 19, 8:30 AM PST | Areal Flood Warning | HNX | 48 hr |
| Dec 19, 9:11 AM PST | Areal Flood Advisory | HNX | 15 hr |
| Dec 20, 8:16 AM PST | Areal Flood Warning | HNX | 24 hr |
| Dec 20, 6:49 PM PST | Flash Flood Warning | HNX | 4 hr |
| Dec 22, 11:48 AM PST | Areal Flood Advisory | HNX | 6 hr |
| Dec 22, 3:25 PM PST | Areal Flood Warning | HNX | 3 hr |
| Dec 25, 9:12 PM PST | Areal Flood Advisory | HNX | 3 hr |
| Dec 29, 1:22 AM PST | Areal Flood Warning | HNX | 10 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 |
| Mesoscale Discussion | 2 |
| Special Weather Statement | 11 |
| Flooding | |
| Areal Flood Warning | 4 |
| Flash Flood Warning | 5 |
| Areal Flood Advisory | 18 |
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.