Alert archive / California / Mono County

Weather alerts in Mono County, California, 2019

70 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Mono County and its neighbors

Each county as a circle sized by its count in 2019. Tap one for its archive.

Alerts: 70
Warnings: 18
Watches: 16
Advisories: 23
Busiest month: January13 alerts
Busiest day: January 4, 20193 alerts

Over time

By month

Warning verification

How often warnings here had a storm report inside them, and how much warning the reports had.

Mono County, 2019

	Warnings	With a report	False alarm ratio
Tornado warnings	0
Severe thunderstorm warnings	0
Flash flood warnings	3	0	100%

Each office's whole area, 2019

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Reno, NV: severe thunderstorm warnings	7	0	100%	3	0%
NWS Reno, NV: flash flood warnings	6	0	100%	1	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 2, 2:23 PM PST	Winter Storm Watch	REV	37 hr
Jan 4, 3:04 AM PST	Winter Storm Warning	REV	3 days
Jan 4, 3:04 AM PST	Winter Weather Advisory	REV	53 hr
Jan 4, 1:47 PM PST	High Wind Watch	REV	38 hr
Jan 6, 4:14 AM PST	High Wind Warning	REV	24 hr
Jan 14, 3:38 PM PST	Winter Storm Watch	REV	23 hr
Jan 14, 3:38 PM PST	Winter Weather Advisory	REV	48 hr
Jan 15, 2:14 PM PST	Blizzard Warning	REV	41 hr
Jan 15, 2:14 PM PST	Winter Storm Warning	REV	57 hr
Jan 18, 12:04 PM PST	Winter Storm Watch	REV	24 hr
Jan 19, 12:10 PM PST	Winter Weather Advisory	REV	40 hr
Jan 30, 2:12 PM PST	Winter Storm Watch	REV	24 hr
Jan 31, 2:15 PM PST	Winter Storm Warning	REV	5 days
Feb 3, 11:14 AM PST	Blizzard Warning	REV	35 hr
Feb 7, 1:30 PM PST	Winter Storm Warning	REV	3 days
Feb 11, 3:39 AM PST	Winter Storm Watch	REV	27 hr
Feb 12, 6:26 AM PST	Winter Storm Warning	REV	6 days
Feb 24, 12:27 PM PST	Winter Weather Advisory	REV	4 days
Feb 24, 12:51 PM PST	High Wind Warning	REV	33 hr
Feb 28, 3:53 AM PST	Winter Storm Watch	REV	24 hr
Mar 1, 3:45 AM PST	Winter Weather Advisory	REV	38 hr
Mar 3, 3:22 PM PST	Winter Storm Watch	REV	23 hr
Mar 4, 2:17 PM PST	Winter Weather Advisory	REV	67 hr
Mar 23, 2:45 PM PDT	Winter Storm Watch	REV	49 hr
Mar 25, 3:25 PM PDT	Winter Storm Warning	REV	56 hr
May 6, 1:44 PM PDT	Special Weather Statement	REV	3 hr
May 6, 7:07 PM PDT	Areal Flood Advisory	REV	70 min
May 15, 2:08 PM PDT	Winter Weather Advisory	REV	18 hr
May 17, 3:40 AM PDT	Winter Weather Advisory	REV	54 hr
May 25, 2:30 AM PDT	Winter Weather Advisory	REV	51 hr
May 31, 12:46 PM PDT	Special Weather Statement	REV	59 min
Jun 5, 3:02 PM PDT	Lake Wind Advisory	REV	30 hr
Jun 9, 10:49 AM PDT	River Flood Watch	REV	21 days
Jun 10, 11:15 AM PDT	Areal Flood Advisory	REV	8 days
Jun 16, 2:58 PM PDT	Flash Flood Warning	REV	92 min
Jun 16, 4:30 PM PDT	Flash Flood Warning	REV	2 hr
Jun 17, 2:04 PM PDT	Special Weather Statement	REV	3 hr
Jun 18, 8:38 AM PDT	Areal Flood Advisory	REV	5 days
Jun 19, 4:02 PM PDT	Lake Wind Advisory	REV	30 hr
Jun 24, 3:42 PM PDT	Lake Wind Advisory	REV	3 days
Jul 12, 4:12 PM PDT	Special Weather Statement	REV	108 min
Jul 23, 1:52 PM PDT	Special Weather Statement	REV	3 hr
Jul 24, 4:24 PM PDT	Special Weather Statement	REV	81 min
Jul 25, 3:20 PM PDT	Special Weather Statement	REV	40 min
Jul 25, 5:39 PM PDT	Special Weather Statement	REV	111 min
Aug 7, 1:08 PM PDT	Special Weather Statement	REV	52 min
Aug 7, 3:28 PM PDT	Special Weather Statement	REV	107 min
Aug 8, 12:06 PM PDT	Special Weather Statement	REV	114 min
Aug 8, 12:43 PM PDT	Flash Flood Warning	REV	77 min
Sep 3, 5:51 PM PDT	Special Weather Statement	HNX	24 min
Sep 4, 12:51 PM PDT	Special Weather Statement	REV	3 hr
Sep 16, 3:48 AM PDT	Wind Advisory	REV	16 hr
Sep 27, 9:38 AM PDT	Freeze Watch	REV	71 hr
Sep 27, 9:38 AM PDT	Freeze Watch	REV	53 hr
Sep 27, 9:10 PM PDT	Wind Advisory	REV	23 hr
Sep 29, 3:04 PM PDT	Freeze Warning	REV	18 hr
Nov 18, 3:00 AM PST	Winter Storm Watch	REV	23 hr
Nov 19, 2:11 AM PST	Winter Weather Advisory	REV	34 hr
Nov 22, 1:12 PM PST	Winter Storm Watch	REV	49 hr
Nov 24, 2:00 PM PST	Winter Storm Warning	REV	4 days
Nov 24, 2:05 PM PST	Wind Advisory	REV	18 hr
Nov 25, 7:38 AM PST	High Wind Warning	REV	7 hr
Nov 27, 12:53 PM PST	Winter Storm Watch	REV	51 hr
Nov 29, 3:44 PM PST	Winter Storm Warning	REV	66 hr
Dec 3, 2:26 PM PST	Winter Storm Watch	REV	48 hr
Dec 3, 2:26 PM PST	Winter Weather Advisory	REV	28 hr
Dec 5, 2:45 PM PST	Winter Storm Warning	REV	67 hr
Dec 7, 3:27 AM PST	Wind Advisory	REV	19 hr
Dec 20, 6:46 PM PST	Wind Advisory	REV	45 hr
Dec 22, 2:28 AM PST	Winter Weather Advisory	REV	50 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
Special Weather Statement	13
Flooding
Flash Flood Warning	3
River Flood Watch	1
Areal Flood Advisory	3
Winter
Blizzard Warning	2
Winter Storm Warning	9
Winter Storm Watch	12
Winter Weather Advisory	12
Cold
Freeze Warning	1
Freeze Watch	2
Wind and dust
High Wind Warning	3
High Wind Watch	1
Lake Wind Advisory	3
Wind 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 2018 2020

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.