Alert archive / California / Inyo County

Weather alerts in Inyo County, California, 2009

80 weather alerts in 2009, 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 2009. Tap one for its archive.

Alerts
80
Warnings
31
Watches
21
Advisories
28
Busiest month
March11 alerts
Busiest day
July 21, 20095 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, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings10100%0
Flash flood warnings8188%1100%18 min

Each office's whole area, 2009

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Las Vegas, NV: severe thunderstorm warnings53787%3926%17 min
NWS Las Vegas, NV: flash flood warnings32778%1937%55 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 2, 5:28 PM PSTWind AdvisoryVEF4 hr
Feb 4, 3:44 PM PSTWinter Storm WatchVEF48 hr
Feb 5, 3:54 PM PSTWinter Storm WarningVEF60 hr
Feb 5, 3:54 PM PSTWinter Weather AdvisoryVEF36 hr
Feb 7, 4:09 AM PSTWinter Weather AdvisoryVEF24 hr
Feb 7, 3:06 PM PSTFlash Flood WarningVEF3 hr
Feb 7, 5:54 PM PSTFlash Flood WarningVEF2 hr
Feb 8, 4:16 AM PSTWinter Weather AdvisoryVEF39 hr
Feb 14, 3:52 PM PSTWinter Storm WatchVEF35 hr
Feb 15, 3:46 PM PSTWinter Storm WarningVEF32 hr
Mar 1, 3:38 PM PSTHigh Wind WatchVEF13 hr
Mar 2, 4:42 AM PSTWind AdvisoryVEF39 hr
Mar 3, 4:03 AM PSTWinter Weather AdvisoryVEF34 hr
Mar 8, 4:48 AM PDTHigh Wind WatchVEF10 hr
Mar 8, 3:10 PM PDTWind AdvisoryVEF33 hr
Mar 9, 12:15 PM PDTHigh Wind WarningVEF9 hr
Mar 20, 10:03 PM PDTWind AdvisoryVEF47 hr
Mar 25, 3:33 PM PDTWind AdvisoryVEF28 hr
Mar 28, 2:07 PM PDTWind AdvisoryVEF37 hr
Mar 29, 8:00 AM PDTHigh Wind WarningVEF19 hr
Mar 31, 3:34 PM PDTHigh Wind WatchVEF47 hr
Apr 1, 3:49 PM PDTWind AdvisoryVEF53 hr
Apr 2, 5:01 PM PDTHigh Wind WarningVEF17 hr
Apr 2, 9:41 PM PDTWind AdvisoryVEF24 hr
Apr 6, 6:48 PM PDTWind AdvisoryVEF36 hr
Apr 12, 3:03 PM PDTHigh Wind WatchVEF24 hr
Apr 13, 3:27 PM PDTWind AdvisoryVEF36 hr
Apr 22, 3:08 PM PDTWind AdvisoryVEF41 hr
Apr 23, 3:11 PM PDTHigh Wind WarningVEF19 hr
Apr 23, 3:11 PM PDTWind AdvisoryVEF40 hr
May 1, 2:42 PM PDTWinter Weather AdvisoryVEF14 hr
May 3, 3:53 AM PDTHigh Wind WarningVEF16 hr
May 15, 1:10 PM PDTExcessive Heat WatchVEF24 hr
Jul 15, 2:31 AM PDTExcessive Heat WatchVEF36 hr
Jul 16, 2:02 PM PDTExcessive Heat WarningVEF62 hr
Jul 20, 2:44 PM PDTFlash Flood WarningVEF90 min
Jul 20, 5:52 PM PDTFlash Flood WarningVEF57 min
Jul 20, 6:10 PM PDTFlash Flood WarningVEF53 min
Jul 20, 6:43 PM PDTFlash Flood WarningVEF2 hr
Jul 20, 7:23 PM PDTSevere Thunderstorm WarningVEF37 min
Jul 20, 8:26 PM PDTFlash Flood WarningVEF94 min
Jul 25, 2:29 PM PDTFlash Flood WarningVEF2 hr
Jul 28, 9:26 AM PDTExcessive Heat WarningVEF11 hr
Aug 4, 2:37 PM PDTRed Flag WarningVEF54 hr
Aug 5, 3:10 PM PDTWind AdvisoryVEF30 hr
Aug 20, 2:43 PM PDTExcessive Heat WarningVEF28 hr
Aug 27, 3:35 AM PDTExcessive Heat WatchVEF25 hr
Aug 27, 3:35 AM PDTExcessive Heat WarningVEF39 hr
Aug 28, 4:22 AM PDTExcessive Heat WarningVEF39 hr
Sep 27, 2:05 PM PDTFire Weather WatchVEF26 hr
Sep 27, 2:05 PM PDTHigh Wind WatchVEF38 hr
Sep 28, 3:09 PM PDTWind AdvisoryVEF37 hr
Sep 28, 3:16 PM PDTRed Flag WarningVEF31 hr
Sep 29, 3:50 AM PDTHigh Wind WarningVEF24 hr
Oct 2, 2:36 PM PDTHigh Wind WatchVEF22 hr
Oct 3, 3:59 AM PDTWind AdvisoryVEF39 hr
Oct 13, 4:38 AM PDTHigh Wind WatchVEF9 hr
Oct 13, 4:38 AM PDTWind AdvisoryVEF16 hr
Oct 25, 3:47 PM PDTHigh Wind WatchVEF23 hr
Oct 26, 3:02 PM PDTHigh Wind WarningVEF24 hr
Oct 26, 3:19 PM PDTRed Flag WarningVEF23 hr
Oct 27, 3:08 PM PDTWind AdvisoryVEF29 hr
Nov 11, 1:59 AM PSTHigh Wind WatchVEF8 hr
Nov 11, 10:22 AM PSTHigh Wind WarningVEF12 hr
Nov 11, 10:22 AM PSTWind AdvisoryVEF32 hr
Nov 18, 2:33 PM PSTHigh Wind WatchVEF25 hr
Nov 19, 3:07 PM PSTHigh Wind WarningVEF31 hr
Nov 19, 3:07 PM PSTWind AdvisoryVEF37 hr
Nov 28, 1:55 AM PSTWinter Weather AdvisoryVEF26 hr
Dec 4, 2:00 PM PSTWind AdvisoryVEF30 hr
Dec 5, 2:45 PM PSTHigh Wind WatchVEF13 hr
Dec 5, 3:43 PM PSTWinter Storm WatchVEF23 hr
Dec 6, 3:58 AM PSTHigh Wind WarningVEF18 hr
Dec 6, 3:58 AM PSTWind AdvisoryVEF24 hr
Dec 6, 2:26 PM PSTWinter Storm WarningVEF37 hr
Dec 10, 4:31 AM PSTWinter Storm WatchVEF35 hr
Dec 11, 3:53 PM PSTWinter Storm WarningVEF42 hr
Dec 21, 4:12 AM PSTHigh Wind WatchVEF21 hr
Dec 21, 2:59 PM PSTWind AdvisoryVEF33 hr
Dec 28, 2:32 PM PSTHigh Wind WatchVEF25 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 archive20082010

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.