Weather alerts in Lyon County, Nevada, 2010

142 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Lyon County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts: 142
Warnings: 15
Watches: 9
Advisories: 109
Busiest month: December19 alerts
Busiest day: November 22, 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.

Lyon County, 2010

	Warnings	With a report	False alarm ratio
Tornado warnings	0
Severe thunderstorm warnings	1	0	100%
Flash flood warnings	1	0	100%

Each office's whole area, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Reno, NV: severe thunderstorm warnings	26	2	92%	8	38%	18 min
NWS Reno, NV: flash flood warnings	19	2	89%	3	67%	20 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 3, 8:54 PM PST	Freezing Fog Advisory	REV	34 hr
Jan 9, 5:18 AM PST	Freezing Fog Advisory	REV	5 hr
Jan 9, 3:42 PM PST	Freezing Fog Advisory	REV	21 hr
Jan 10, 6:39 PM PST	Dense Fog Advisory	REV	17 hr
Jan 11, 3:29 PM PST	Lake Wind Advisory	REV	27 hr
Jan 12, 3:28 AM PST	Wind Advisory	REV	15 hr
Jan 18, 4:02 AM PST	Winter Weather Advisory	REV	21 hr
Jan 18, 9:37 AM PST	Lake Wind Advisory	REV	8 hr
Jan 19, 2:21 AM PST	Winter Storm Watch	REV	25 hr
Jan 19, 10:28 AM PST	Lake Wind Advisory	REV	8 hr
Jan 19, 3:34 PM PST	Lake Wind Advisory	REV	26 hr
Jan 20, 3:00 AM PST	Winter Weather Advisory	REV	24 hr
Jan 21, 3:06 AM PST	Winter Weather Advisory	REV	25 hr
Feb 20, 2:23 PM PST	Winter Weather Advisory	REV	8 hr
Feb 20, 9:53 PM PST	Winter Storm Warning	REV	17 hr
Feb 21, 8:23 PM PST	Freezing Fog Advisory	REV	10 hr
Feb 22, 2:23 PM PST	Winter Weather Advisory	REV	44 hr
Feb 26, 4:22 AM PST	Lake Wind Advisory	REV	16 hr
Mar 1, 2:12 PM PST	Lake Wind Advisory	REV	38 hr
Mar 3, 3:43 AM PST	Lake Wind Advisory	REV	12 hr
Mar 7, 2:32 PM PST	Lake Wind Advisory	REV	28 hr
Mar 11, 2:50 PM PST	Lake Wind Advisory	REV	30 hr
Mar 11, 2:50 PM PST	Wind Advisory	REV	29 hr
Mar 17, 3:28 PM PDT	Lake Wind Advisory	REV	29 hr
Mar 21, 2:48 AM PDT	Lake Wind Advisory	REV	17 hr
Mar 24, 3:03 PM PDT	Wind Advisory	REV	16 hr
Mar 25, 3:57 AM PDT	Lake Wind Advisory	REV	14 hr
Mar 27, 1:22 PM PDT	High Wind Watch	REV	23 hr
Mar 27, 1:22 PM PDT	Lake Wind Advisory	REV	46 hr
Mar 28, 3:57 AM PDT	High Wind Warning	REV	59 hr
Mar 29, 10:52 AM PDT	Dust Storm Warning	REV	9 hr
Mar 30, 10:17 AM PDT	Dust Storm Warning	REV	5 hr
Mar 30, 10:17 AM PDT	Wind Advisory	REV	5 hr
Apr 1, 3:36 PM PDT	High Wind Warning	REV	28 hr
Apr 1, 3:36 PM PDT	Wind Advisory	REV	31 hr
Apr 3, 2:26 PM PDT	Lake Wind Advisory	REV	30 hr
Apr 4, 3:51 AM PDT	Winter Weather Advisory	REV	29 hr
Apr 9, 3:13 PM PDT	Lake Wind Advisory	REV	28 hr
Apr 10, 2:52 PM PDT	Blowing Dust Advisory	REV	29 hr
Apr 10, 2:52 PM PDT	Wind Advisory	REV	29 hr
Apr 19, 2:27 PM PDT	Wind Advisory	REV	24 hr
Apr 23, 8:03 AM PDT	Dense Fog Advisory	REV	117 min
Apr 25, 3:29 AM PDT	High Wind Watch	REV	36 hr
Apr 26, 4:16 AM PDT	High Wind Warning	REV	42 hr
Apr 26, 4:16 AM PDT	Wind Advisory	REV	34 hr
Apr 27, 2:51 PM PDT	Dust Storm Warning	REV	4 hr
Apr 27, 10:44 PM PDT	Lake Wind Advisory	REV	21 hr
Apr 30, 2:29 PM PDT	Lake Wind Advisory	REV	30 hr
May 2, 2:18 PM PDT	Lake Wind Advisory	REV	30 hr
May 4, 9:44 AM PDT	Lake Wind Advisory	REV	6 hr
May 4, 3:31 PM PDT	Blowing Dust Advisory	REV	28 hr
May 4, 3:31 PM PDT	Lake Wind Advisory	REV	28 hr
May 8, 3:31 PM PDT	Lake Wind Advisory	REV	28 hr
May 9, 3:16 PM PDT	Lake Wind Advisory	REV	29 hr
May 9, 3:16 PM PDT	Wind Advisory	REV	29 hr
May 11, 3:30 AM PDT	Lake Wind Advisory	REV	17 hr
May 18, 3:00 PM PDT	Lake Wind Advisory	REV	29 hr
May 20, 1:50 PM PDT	Lake Wind Advisory	REV	33 hr
May 20, 1:50 PM PDT	Wind Advisory	REV	30 hr
May 30, 3:21 PM PDT	Lake Wind Advisory	REV	29 hr
Jun 2, 2:47 PM PDT	Lake Wind Advisory	REV	30 hr
Jun 3, 2:42 PM PDT	Lake Wind Advisory	REV	30 hr
Jun 4, 7:53 PM PDT	River Flood Advisory	REV	38 hr
Jun 5, 3:24 PM PDT	Lake Wind Advisory	REV	29 hr
Jun 6, 9:34 AM PDT	River Flood Warning	REV	54 hr
Jun 8, 2:08 PM PDT	Wind Advisory	REV	31 hr
Jun 10, 5:53 AM PDT	Lake Wind Advisory	REV	14 hr
Jun 11, 3:26 AM PDT	Lake Wind Advisory	REV	34 hr
Jun 16, 3:25 AM PDT	Lake Wind Advisory	REV	17 hr
Jun 18, 2:53 PM PDT	Lake Wind Advisory	REV	31 hr
Jun 28, 3:03 PM PDT	Special Weather Statement	REV	42 min
Jun 29, 2:54 PM PDT	Special Weather Statement	REV	111 min
Jun 29, 3:41 PM PDT	Lake Wind Advisory	REV	28 hr
Jul 9, 6:34 PM PDT	Special Weather Statement	REV	41 min
Jul 13, 12:08 PM PDT	Lake Wind Advisory	REV	9 hr
Jul 16, 6:28 AM PDT	Flash Flood Watch	REV	14 hr
Jul 16, 1:43 PM PDT	Flash Flood Warning	REV	83 min
Jul 16, 9:17 PM PDT	Areal Flood Advisory	REV	3 hr
Jul 17, 2:58 PM PDT	Lake Wind Advisory	REV	30 hr
Jul 25, 2:02 PM PDT	Special Weather Statement	REV	58 min
Jul 26, 1:20 PM PDT	Severe Thunderstorm Warning	REV	20 min
Jul 29, 3:32 PM PDT	Lake Wind Advisory	REV	29 hr
Jul 30, 3:33 PM PDT	Lake Wind Advisory	REV	29 hr
Aug 5, 5:47 PM PDT	Special Weather Statement	REV	28 min
Aug 8, 8:15 AM PDT	Flash Flood Watch	REV	13 hr
Aug 8, 3:13 PM PDT	Special Weather Statement	REV	107 min
Aug 16, 2:57 PM PDT	Lake Wind Advisory	REV	34 hr
Aug 20, 8:21 AM PDT	Lake Wind Advisory	REV	52 hr
Aug 25, 3:38 PM PDT	Lake Wind Advisory	REV	29 hr
Aug 26, 9:01 PM PDT	Lake Wind Advisory	REV	50 hr
Sep 6, 3:16 PM PDT	Lake Wind Advisory	REV	56 hr
Sep 6, 3:16 PM PDT	Wind Advisory	REV	32 hr
Sep 18, 3:00 AM PDT	Lake Wind Advisory	REV	42 hr
Oct 4, 4:49 PM PDT	Areal Flood Advisory	REV	6 hr
Oct 5, 5:32 PM PDT	Special Weather Statement	REV	28 min
Oct 5, 6:46 PM PDT	Areal Flood Advisory	REV	72 min
Oct 17, 3:53 PM PDT	Special Weather Statement	REV	37 min
Oct 17, 4:29 PM PDT	Special Weather Statement	REV	31 min
Oct 22, 2:46 PM PDT	High Wind Watch	REV	20 hr
Oct 23, 10:47 AM PDT	High Wind Warning	REV	41 hr
Oct 23, 10:47 AM PDT	Wind Advisory	REV	41 hr
Oct 25, 10:10 AM PDT	River Flood Advisory	REV	36 hr
Oct 25, 10:10 AM PDT	River Flood Advisory	REV	21 hr
Oct 25, 10:10 AM PDT	River Flood Advisory	REV	36 hr
Oct 25, 2:33 PM PDT	River Flood Advisory	REV	26 hr
Nov 6, 2:48 PM PDT	Lake Wind Advisory	REV	27 hr
Nov 9, 2:57 PM PST	Winter Weather Advisory	REV	19 hr
Nov 17, 3:12 PM PST	Lake Wind Advisory	REV	28 hr
Nov 17, 3:12 PM PST	Wind Advisory	REV	49 hr
Nov 18, 3:00 PM PST	Winter Storm Watch	REV	24 hr
Nov 18, 3:00 PM PST	Winter Storm Warning	REV	3 days
Nov 18, 3:08 PM PST	Wind Advisory	REV	25 hr
Nov 19, 3:42 AM PST	Lake Wind Advisory	REV	12 hr
Nov 19, 3:07 PM PST	Winter Weather Advisory	REV	39 hr
Nov 21, 3:09 AM PST	Winter Storm Watch	REV	34 hr
Nov 21, 6:30 AM PST	Lake Wind Advisory	REV	11 hr
Nov 21, 3:33 PM PST	Winter Weather Advisory	REV	18 hr
Nov 21, 9:13 PM PST	Lake Wind Advisory	REV	25 hr
Nov 22, 3:31 AM PST	Wind Advisory	REV	24 hr
Nov 22, 5:02 AM PST	Winter Storm Warning	REV	35 hr
Nov 22, 12:12 PM PST	Wind Advisory	REV	27 hr
Nov 22, 12:53 PM PST	Winter Weather Advisory	REV	27 hr
Nov 26, 1:42 PM PST	Lake Wind Advisory	REV	25 hr
Dec 2, 3:52 AM PST	Lake Wind Advisory	REV	12 hr
Dec 2, 3:52 AM PST	Wind Advisory	REV	18 hr
Dec 5, 7:26 AM PST	Dense Fog Advisory	REV	3 hr
Dec 7, 12:43 PM PST	Lake Wind Advisory	REV	27 hr
Dec 7, 12:43 PM PST	Wind Advisory	REV	27 hr
Dec 13, 3:11 PM PST	Lake Wind Advisory	REV	28 hr
Dec 13, 3:11 PM PST	Wind Advisory	REV	28 hr
Dec 16, 4:08 PM PST	Winter Storm Warning	REV	4 days
Dec 16, 4:15 PM PST	High Wind Watch	REV	23 hr
Dec 16, 9:40 PM PST	Winter Weather Advisory	REV	31 hr
Dec 17, 3:22 PM PST	High Wind Warning	REV	23 hr
Dec 17, 3:22 PM PST	Lake Wind Advisory	REV	23 hr
Dec 18, 2:48 PM PST	Lake Wind Advisory	REV	11 hr
Dec 18, 10:58 PM PST	Areal Flood Advisory	REV	17 hr
Dec 19, 1:56 AM PST	Wind Advisory	REV	18 hr
Dec 19, 4:20 PM PST	Winter Weather Advisory	REV	11 hr
Dec 23, 3:59 AM PST	Freezing Fog Advisory	REV	8 hr
Dec 28, 4:34 AM PST	Winter Weather Advisory	REV	39 hr
Dec 30, 10:08 AM PST	Lake Wind Advisory	REV	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	1
Special Weather Statement	9
Flooding
Flash Flood Warning	1
River Flood Warning	1
Flash Flood Watch	2
Areal Flood Advisory	4
River Flood Advisory	5
Winter
Winter Storm Warning	4
Winter Storm Watch	3
Winter Weather Advisory	13
Wind and dust
Dust Storm Warning	3
High Wind Warning	5
High Wind Watch	4
Blowing Dust Advisory	2
Lake Wind Advisory	56
Wind Advisory	21
Fog and smoke
Dense Fog Advisory	3
Freezing Fog Advisory	5

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2009 2011

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.