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

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings10100%40%
Flash flood warnings010%

Each office's whole area, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Las Vegas, NV: tornado warnings10100%10%
NWS Las Vegas, NV: severe thunderstorm warnings15193%138%15 min
NWS Las Vegas, NV: flash flood warnings23578%1533%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.

IssuedProductOfficeLasted
Jan 11, 8:20 AM PSTWind AdvisoryVEF10 hr
Jan 12, 2:50 AM PSTHigh Wind WatchVEF25 hr
Jan 13, 3:26 AM PSTWind AdvisoryVEF37 hr
Jan 14, 2:02 PM PSTWinter Weather AdvisoryVEF61 hr
Jan 15, 3:17 AM PSTWind AdvisoryVEF42 hr
Jan 17, 12:28 AM PSTHigh Wind WarningVEF3 hr
Feb 1, 2:47 AM PSTHigh Wind WatchVEF11 hr
Feb 1, 2:07 PM PSTHigh Wind WarningVEF49 hr
Feb 1, 2:07 PM PSTWind AdvisoryVEF3 days
Feb 8, 3:08 AM PSTWind AdvisoryVEF3 days
Feb 29, 4:18 AM PSTWind AdvisoryVEF57 hr
Feb 29, 5:10 AM PSTWinter Weather AdvisoryVEF45 hr
Mar 9, 2:44 PM PDTFlash Flood WatchVEF37 hr
Mar 15, 3:49 AM PDTWinter Weather AdvisoryVEF47 hr
Mar 19, 8:22 PM PDTAreal Flood AdvisoryVEF6 hr
Mar 25, 2:01 AM PDTWind AdvisoryVEF27 hr
Apr 3, 12:48 PM PDTWinter Storm WatchVEF61 hr
Apr 4, 2:03 AM PDTWind AdvisoryVEF45 hr
Apr 4, 4:52 AM PDTWinter Storm WarningVEF5 days
Apr 6, 1:02 PM PDTFlash Flood WatchVEF56 hr
Apr 8, 3:28 AM PDTWinter Weather AdvisoryVEF32 hr
Apr 8, 5:57 AM PDTAreal Flood AdvisoryVEF6 hr
Apr 8, 8:04 AM PDTAreal Flood AdvisoryVEF4 hr
Apr 12, 6:15 PM PDTAreal Flood AdvisoryVEF5 hr
Apr 24, 2:07 PM PDTExcessive Heat WatchVEF61 hr
Apr 25, 2:11 PM PDTExcessive Heat WarningVEF5 days
May 4, 2:14 AM PDTExcessive Heat WatchVEF72 hr
May 7, 2:10 AM PDTExcessive Heat WarningVEF66 hr
May 11, 1:34 PM PDTWind AdvisoryVEF39 hr
May 14, 1:45 PM PDTFire Weather WatchVEF37 hr
May 16, 2:41 AM PDTRed Flag WarningVEF65 hr
May 16, 2:41 AM PDTHigh Wind WatchVEF11 hr
May 16, 2:41 AM PDTWind AdvisoryVEF3 days
May 21, 12:59 PM PDTRed Flag WarningVEF31 hr
May 22, 1:49 PM PDTExcessive Heat WatchVEF37 hr
May 24, 2:32 AM PDTExcessive Heat WarningVEF6 days
May 28, 1:05 PM PDTRed Flag WarningVEF55 hr
May 29, 3:33 AM PDTWind AdvisoryVEF40 hr
Jun 1, 2:17 PM PDTExcessive Heat WatchVEF11 hr
Jun 2, 1:06 AM PDTExcessive Heat WarningVEF67 hr
Jun 6, 7:59 PM PDTWind AdvisoryVEF30 hr
Jun 7, 3:42 AM PDTRed Flag WarningVEF16 hr
Jun 10, 1:56 PM PDTFire Weather WatchVEF25 hr
Jun 11, 2:34 PM PDTRed Flag WarningVEF32 hr
Jun 11, 2:38 PM PDTWind AdvisoryVEF30 hr
Jun 24, 1:01 PM PDTFire Weather WatchVEF48 hr
Jun 25, 4:57 PM PDTSevere Thunderstorm WarningVEF48 min
Jun 26, 1:00 PM PDTWind AdvisoryVEF60 hr
Jun 26, 1:05 PM PDTRed Flag WarningVEF3 days
Jun 27, 12:13 PM PDTHigh Wind WarningVEF37 hr
Jul 7, 3:51 AM PDTExcessive Heat WatchVEF34 hr
Jul 8, 1:52 PM PDTExcessive Heat WarningVEF5 days
Jul 28, 3:42 AM PDTExcessive Heat WarningVEF5 days
Aug 11, 12:14 PM PDTExcessive Heat WatchVEF25 hr
Aug 12, 1:10 PM PDTExcessive Heat WarningVEF9 days
Sep 1, 2:01 AM PDTExcessive Heat WatchVEF34 hr
Sep 2, 11:53 AM PDTExcessive Heat WarningVEF5 days
Sep 5, 1:54 PM PDTFire Weather WatchVEF23 hr
Sep 6, 1:16 PM PDTRed Flag WarningVEF3 days
Sep 6, 1:33 PM PDTWind AdvisoryVEF3 days
Sep 15, 1:59 PM PDTFire Weather WatchVEF47 hr
Oct 23, 1:26 PM PDTFire Weather WatchVEF37 hr
Oct 24, 1:56 PM PDTWind AdvisoryVEF55 hr
Oct 25, 2:24 AM PDTRed Flag WarningVEF61 hr
Nov 4, 2:44 AM PSTFire Weather WatchVEF12 hr
Nov 4, 2:55 PM PSTRed Flag WarningVEF53 hr
Nov 5, 3:51 AM PSTWind AdvisoryVEF53 hr
Nov 7, 2:23 PM PSTFreeze WatchVEF11 hr
Nov 8, 1:32 AM PSTFreeze WarningVEF30 hr
Nov 16, 10:23 AM PSTHigh Wind WatchVEF24 hr
Nov 17, 3:00 AM PSTWind AdvisoryVEF28 hr
Nov 18, 12:39 AM PSTWind AdvisoryVEF18 hr
Nov 24, 1:19 PM PSTWind AdvisoryVEF3 days
Dec 27, 2:14 AM PSTWinter Weather AdvisoryVEF43 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

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.