Alert archive / California / Inyo County
Weather alerts in Inyo County, California, 2020
74 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Inyo County and its neighbors
Each county as a circle sized by its count in 2020. Tap one for its archive.
- Alerts
- 74
- Warnings
- 23
- Watches
- 22
- Advisories
- 29
- Busiest month
- May12 alerts
- Busiest day
- February 1, 20203 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Inyo County, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 1 | 0 | 100% | 4 | 0% | |
| Flash flood warnings | 0 | 1 | 0% |
Each office's whole area, 2020
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Las Vegas, NV: tornado warnings | 1 | 0 | 100% | 1 | 0% | |
| NWS Las Vegas, NV: severe thunderstorm warnings | 15 | 1 | 93% | 13 | 8% | 15 min |
| NWS Las Vegas, NV: flash flood warnings | 23 | 5 | 78% | 15 | 33% | 92 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, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 11, 8:20 AM PST | Wind Advisory | VEF | 10 hr |
| Jan 12, 2:50 AM PST | High Wind Watch | VEF | 25 hr |
| Jan 13, 3:26 AM PST | Wind Advisory | VEF | 37 hr |
| Jan 14, 2:02 PM PST | Winter Weather Advisory | VEF | 61 hr |
| Jan 15, 3:17 AM PST | Wind Advisory | VEF | 42 hr |
| Jan 17, 12:28 AM PST | High Wind Warning | VEF | 3 hr |
| Feb 1, 2:47 AM PST | High Wind Watch | VEF | 11 hr |
| Feb 1, 2:07 PM PST | High Wind Warning | VEF | 49 hr |
| Feb 1, 2:07 PM PST | Wind Advisory | VEF | 3 days |
| Feb 8, 3:08 AM PST | Wind Advisory | VEF | 3 days |
| Feb 29, 4:18 AM PST | Wind Advisory | VEF | 57 hr |
| Feb 29, 5:10 AM PST | Winter Weather Advisory | VEF | 45 hr |
| Mar 9, 2:44 PM PDT | Flash Flood Watch | VEF | 37 hr |
| Mar 15, 3:49 AM PDT | Winter Weather Advisory | VEF | 47 hr |
| Mar 19, 8:22 PM PDT | Areal Flood Advisory | VEF | 6 hr |
| Mar 25, 2:01 AM PDT | Wind Advisory | VEF | 27 hr |
| Apr 3, 12:48 PM PDT | Winter Storm Watch | VEF | 61 hr |
| Apr 4, 2:03 AM PDT | Wind Advisory | VEF | 45 hr |
| Apr 4, 4:52 AM PDT | Winter Storm Warning | VEF | 5 days |
| Apr 6, 1:02 PM PDT | Flash Flood Watch | VEF | 56 hr |
| Apr 8, 3:28 AM PDT | Winter Weather Advisory | VEF | 32 hr |
| Apr 8, 5:57 AM PDT | Areal Flood Advisory | VEF | 6 hr |
| Apr 8, 8:04 AM PDT | Areal Flood Advisory | VEF | 4 hr |
| Apr 12, 6:15 PM PDT | Areal Flood Advisory | VEF | 5 hr |
| Apr 24, 2:07 PM PDT | Excessive Heat Watch | VEF | 61 hr |
| Apr 25, 2:11 PM PDT | Excessive Heat Warning | VEF | 5 days |
| May 4, 2:14 AM PDT | Excessive Heat Watch | VEF | 72 hr |
| May 7, 2:10 AM PDT | Excessive Heat Warning | VEF | 66 hr |
| May 11, 1:34 PM PDT | Wind Advisory | VEF | 39 hr |
| May 14, 1:45 PM PDT | Fire Weather Watch | VEF | 37 hr |
| May 16, 2:41 AM PDT | Red Flag Warning | VEF | 65 hr |
| May 16, 2:41 AM PDT | High Wind Watch | VEF | 11 hr |
| May 16, 2:41 AM PDT | Wind Advisory | VEF | 3 days |
| May 21, 12:59 PM PDT | Red Flag Warning | VEF | 31 hr |
| May 22, 1:49 PM PDT | Excessive Heat Watch | VEF | 37 hr |
| May 24, 2:32 AM PDT | Excessive Heat Warning | VEF | 6 days |
| May 28, 1:05 PM PDT | Red Flag Warning | VEF | 55 hr |
| May 29, 3:33 AM PDT | Wind Advisory | VEF | 40 hr |
| Jun 1, 2:17 PM PDT | Excessive Heat Watch | VEF | 11 hr |
| Jun 2, 1:06 AM PDT | Excessive Heat Warning | VEF | 67 hr |
| Jun 6, 7:59 PM PDT | Wind Advisory | VEF | 30 hr |
| Jun 7, 3:42 AM PDT | Red Flag Warning | VEF | 16 hr |
| Jun 10, 1:56 PM PDT | Fire Weather Watch | VEF | 25 hr |
| Jun 11, 2:34 PM PDT | Red Flag Warning | VEF | 32 hr |
| Jun 11, 2:38 PM PDT | Wind Advisory | VEF | 30 hr |
| Jun 24, 1:01 PM PDT | Fire Weather Watch | VEF | 48 hr |
| Jun 25, 4:57 PM PDT | Severe Thunderstorm Warning | VEF | 48 min |
| Jun 26, 1:00 PM PDT | Wind Advisory | VEF | 60 hr |
| Jun 26, 1:05 PM PDT | Red Flag Warning | VEF | 3 days |
| Jun 27, 12:13 PM PDT | High Wind Warning | VEF | 37 hr |
| Jul 7, 3:51 AM PDT | Excessive Heat Watch | VEF | 34 hr |
| Jul 8, 1:52 PM PDT | Excessive Heat Warning | VEF | 5 days |
| Jul 28, 3:42 AM PDT | Excessive Heat Warning | VEF | 5 days |
| Aug 11, 12:14 PM PDT | Excessive Heat Watch | VEF | 25 hr |
| Aug 12, 1:10 PM PDT | Excessive Heat Warning | VEF | 9 days |
| Sep 1, 2:01 AM PDT | Excessive Heat Watch | VEF | 34 hr |
| Sep 2, 11:53 AM PDT | Excessive Heat Warning | VEF | 5 days |
| Sep 5, 1:54 PM PDT | Fire Weather Watch | VEF | 23 hr |
| Sep 6, 1:16 PM PDT | Red Flag Warning | VEF | 3 days |
| Sep 6, 1:33 PM PDT | Wind Advisory | VEF | 3 days |
| Sep 15, 1:59 PM PDT | Fire Weather Watch | VEF | 47 hr |
| Oct 23, 1:26 PM PDT | Fire Weather Watch | VEF | 37 hr |
| Oct 24, 1:56 PM PDT | Wind Advisory | VEF | 55 hr |
| Oct 25, 2:24 AM PDT | Red Flag Warning | VEF | 61 hr |
| Nov 4, 2:44 AM PST | Fire Weather Watch | VEF | 12 hr |
| Nov 4, 2:55 PM PST | Red Flag Warning | VEF | 53 hr |
| Nov 5, 3:51 AM PST | Wind Advisory | VEF | 53 hr |
| Nov 7, 2:23 PM PST | Freeze Watch | VEF | 11 hr |
| Nov 8, 1:32 AM PST | Freeze Warning | VEF | 30 hr |
| Nov 16, 10:23 AM PST | High Wind Watch | VEF | 24 hr |
| Nov 17, 3:00 AM PST | Wind Advisory | VEF | 28 hr |
| Nov 18, 12:39 AM PST | Wind Advisory | VEF | 18 hr |
| Nov 24, 1:19 PM PST | Wind Advisory | VEF | 3 days |
| Dec 27, 2:14 AM PST | Winter Weather Advisory | VEF | 43 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 | 1 |
| Flooding | |
| Flash Flood Watch | 2 |
| Areal Flood Advisory | 4 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 1 |
| Winter Weather Advisory | 5 |
| Heat | |
| Excessive Heat Warning | 8 |
| Excessive Heat Watch | 7 |
| Cold | |
| Freeze Warning | 1 |
| Freeze Watch | 1 |
| Wind and dust | |
| High Wind Warning | 3 |
| High Wind Watch | 4 |
| Wind Advisory | 20 |
| Fire | |
| Red Flag Warning | 9 |
| Fire Weather Watch | 7 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20192021
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.