Alert archive / California / Mono County

Weather alerts in Mono County, California, 2023

85 weather alerts in 2023, 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 2023. Tap one for its archive.

Alerts: 85
Warnings: 22
Watches: 21
Advisories: 31
Busiest month: June16 alerts
Busiest day: June 6, 20234 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, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning
Tornado warnings	0			0
Severe thunderstorm warnings	1	0	100%	1	0%
Flash flood warnings	6	0	100%	1	0%

Each office's whole area, 2023

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Reno, NV: severe thunderstorm warnings	18	1	94%	8	13%	21 min
NWS Reno, NV: flash flood warnings	18	0	100%	16	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, 1:11 PM PST	Winter Storm Watch	REV	14 hr
Jan 3, 3:12 AM PST	Winter Storm Warning	REV	70 hr
Jan 6, 2:37 AM PST	Winter Storm Watch	REV	34 hr
Jan 6, 2:37 AM PST	Winter Storm Warning	REV	5 days
Jan 9, 1:28 PM PST	Areal Flood Advisory	REV	7 hr
Jan 11, 3:07 PM PST	Winter Storm Watch	REV	24 hr
Jan 12, 3:08 PM PST	Winter Storm Warning	REV	4 days
Feb 2, 1:17 PM PST	Winter Storm Watch	REV	24 hr
Feb 3, 1:34 PM PST	Winter Storm Warning	REV	53 hr
Feb 13, 12:49 PM PST	Wind Advisory	REV	30 hr
Feb 18, 2:23 PM PST	High Wind Watch	REV	24 hr
Feb 19, 2:10 PM PST	High Wind Warning	REV	55 hr
Feb 22, 4:21 AM PST	Winter Storm Watch	REV	24 hr
Feb 23, 4:12 AM PST	Winter Storm Warning	REV	3 days
Feb 24, 1:33 PM PST	Winter Storm Watch	REV	27 hr
Feb 25, 4:19 PM PST	Blizzard Warning	REV	3 days
Feb 25, 4:19 PM PST	Winter Storm Warning	REV	3 days
Mar 1, 2:35 PM PST	Winter Storm Watch	REV	23 hr
Mar 2, 1:36 PM PST	Winter Storm Warning	REV	4 days
Mar 7, 1:12 PM PST	Flood Watch	REV	48 hr
Mar 7, 1:37 PM PST	Winter Storm Watch	REV	26 hr
Mar 8, 3:11 PM PST	Winter Storm Warning	REV	6 days
Mar 9, 1:00 PM PST	Areal Flood Advisory	REV	3 days
Mar 12, 1:20 PM PDT	Flood Watch	REV	24 hr
Mar 13, 1:25 PM PDT	Areal Flood Advisory	REV	24 hr
Mar 17, 1:58 PM PDT	Winter Storm Watch	REV	3 days
Mar 18, 1:24 PM PDT	Winter Weather Advisory	REV	46 hr
Mar 20, 2:17 PM PDT	Winter Storm Warning	REV	39 hr
Mar 24, 2:11 PM PDT	Winter Storm Watch	REV	48 hr
Mar 26, 2:03 PM PDT	Winter Storm Warning	REV	63 hr
Mar 31, 3:11 PM PDT	Wind Advisory	REV	56 hr
Apr 1, 3:18 PM PDT	Wind Advisory	REV	54 hr
Apr 16, 1:58 PM PDT	Wind Advisory	REV	45 hr
Apr 24, 2:36 PM PDT	Flood Watch	REV	6 days
May 17, 12:45 PM PDT	Flood Watch	REV	6 days
May 17, 4:42 PM PDT	River Flood Warning	REV	9 days
May 20, 3:25 PM PDT	Special Weather Statement	HNX	35 min
May 20, 3:40 PM PDT	Special Weather Statement	HNX	35 min
May 21, 3:44 PM PDT	Areal Flood Advisory	REV	76 min
May 25, 7:53 AM PDT	Flood Watch	REV	14 hr
May 26, 1:39 PM PDT	River Flood Advisory	REV	20 days
May 28, 8:27 AM PDT	Flood Watch	REV	58 hr
May 29, 5:04 PM PDT	Flash Flood Warning	REV	106 min
May 31, 4:09 PM PDT	Flash Flood Warning	REV	111 min
Jun 2, 12:22 PM PDT	Areal Flood Advisory	REV	58 hr
Jun 6, 10:50 AM PDT	Special Weather Statement	REV	40 min
Jun 6, 11:35 AM PDT	Special Weather Statement	REV	40 min
Jun 6, 12:15 PM PDT	Special Weather Statement	REV	45 min
Jun 6, 2:02 PM PDT	Areal Flood Advisory	REV	3 hr
Jun 8, 3:02 PM PDT	Areal Flood Advisory	REV	105 min
Jun 11, 1:13 AM PDT	Flood Watch	REV	44 hr
Jun 11, 4:22 PM PDT	Flash Flood Warning	REV	83 min
Jun 15, 1:05 PM PDT	River Flood Warning	REV	55 hr
Jun 15, 1:56 PM PDT	Areal Flood Advisory	REV	6 days
Jun 16, 1:19 PM PDT	Lake Wind Advisory	REV	3 days
Jun 17, 7:56 PM PDT	River Flood Advisory	REV	37 hr
Jun 19, 8:43 AM PDT	River Flood Warning	REV	30 hr
Jun 20, 10:35 AM PDT	River Flood Advisory	REV	20 days
Jun 26, 2:40 PM PDT	Flood Watch	REV	4 days
Jun 30, 12:47 PM PDT	Areal Flood Advisory	REV	10 days
Jul 12, 2:42 AM PDT	Heat Advisory	REV	5 days
Jul 12, 1:33 PM PDT	Flood Watch	REV	47 hr
Jul 14, 12:32 PM PDT	Areal Flood Advisory	REV	70 hr
Jul 17, 3:10 PM PDT	Special Weather Statement	HNX	35 min
Jul 19, 4:40 PM PDT	Severe Thunderstorm Warning	REV	50 min
Jul 19, 5:49 PM PDT	Areal Flood Advisory	REV	86 min
Jul 19, 7:10 PM PDT	Flash Flood Warning	REV	3 hr
Aug 11, 2:17 PM PDT	Special Weather Statement	REV	43 min
Aug 12, 7:28 PM PDT	Special Weather Statement	HNX	32 min
Aug 12, 7:57 PM PDT	Special Weather Statement	HNX	33 min
Aug 17, 1:32 PM PDT	Flood Watch	REV	5 days
Aug 17, 6:30 PM PDT	Areal Flood Advisory	REV	106 min
Aug 18, 6:05 PM PDT	Flash Flood Warning	REV	85 min
Aug 21, 1:21 AM PDT	Flash Flood Warning	REV	6 hr
Aug 22, 6:20 AM PDT	Areal Flood Advisory	REV	2 hr
Aug 30, 1:01 PM PDT	Lake Wind Advisory	REV	34 hr
Aug 31, 12:58 PM PDT	Wind Advisory	REV	31 hr
Sep 10, 5:25 PM PDT	Areal Flood Advisory	REV	97 min
Sep 28, 1:26 PM PDT	Winter Weather Advisory	REV	3 days
Sep 30, 2:36 AM PDT	Special Weather Statement	HNX	24 min
Sep 30, 5:03 AM PDT	Special Weather Statement	HNX	27 min
Nov 5, 1:07 PM PST	Winter Weather Advisory	REV	38 hr
Nov 17, 2:01 PM PST	Winter Weather Advisory	REV	36 hr
Dec 5, 1:10 AM PST	Wind Advisory	REV	45 hr
Dec 28, 12:34 PM 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
Severe Thunderstorm Warning	1
Special Weather Statement	11
Flooding
Flash Flood Warning	6
River Flood Warning	3
Flood Watch	10
Areal Flood Advisory	14
River Flood Advisory	3
Winter
Blizzard Warning	1
Winter Storm Warning	10
Winter Storm Watch	10
Winter Weather Advisory	5
Heat
Heat Advisory	1
Wind and dust
High Wind Warning	1
High Wind Watch	1
Lake Wind Advisory	2
Wind Advisory	6

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2022 2024

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.