Weather alerts in Mohave County, Arizona, 2020

125 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Mohave County and its neighbors

Each county as a circle sized by its count in 2020. Tap one for its archive.

Alerts: 125
Warnings: 63
Watches: 26
Advisories: 35
Busiest month: July23 alerts
Busiest day: July 24, 20209 alerts

Over time

By month

Warning verification

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

0 of 1 tornado warnings covering Mohave County in 2020 had a tornado report inside them; 0 of 1 tornado reports fell inside a warning.

Mohave County, 2020

	Warnings	With a report	False alarm ratio	Reports	Inside a warning
Tornado warnings	1	0	100%	1	0%
Severe thunderstorm warnings	12	0	100%	1	0%
Flash flood warnings	14	1	93%	5	0%

Each office's whole area, 2020

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Las Vegas, NV: tornado warnings	1	0	100%	1	0%
NWS Las Vegas, NV: severe thunderstorm warnings	15	1	93%	13	8%	15 min
NWS Las Vegas, NV: flash flood warnings	23	5	78%	15	33%	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, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Lasted
Jan 5, 3:57 AM MST	Wind Advisory	VEF	35 hr
Jan 28, 4:08 AM MST	Wind Advisory	VEF	41 hr
Feb 1, 3:47 AM MST	High Wind Watch	VEF	11 hr
Feb 1, 3:07 PM MST	High Wind Warning	VEF	49 hr
Feb 1, 3:07 PM MST	Wind Advisory	VEF	3 days
Feb 8, 4:08 AM MST	Wind Advisory	VEF	3 days
Feb 24, 2:43 AM MST	Lake Wind Advisory	VEF	41 hr
Mar 11, 3:30 AM MST	Flash Flood Watch	VEF	48 hr
Mar 12, 4:07 PM MST	Flash Flood Warning Considerable damage threat	VEF	4 hr
Mar 12, 6:14 PM MST	Flash Flood Warning Considerable damage threat	VEF	3 hr
Mar 13, 3:29 AM MST	Areal Flood Advisory	VEF	5 hr
Mar 13, 9:57 AM MST	Areal Flood Warning	VEF	12 hr
Mar 23, 1:31 PM MST	Areal Flood Advisory	VEF	3 hr
Apr 6, 1:02 PM MST	Flash Flood Watch	VEF	56 hr
Apr 12, 3:26 PM MST	Severe Thunderstorm Warning	VEF	34 min
Apr 12, 3:59 PM MST	Severe Thunderstorm Warning	VEF	46 min
Apr 12, 5:25 PM MST	Severe Thunderstorm Warning	VEF	50 min
Apr 12, 9:24 PM MST	Areal Flood Advisory	VEF	2 hr
Apr 12, 9:40 PM MST	Flash Flood Warning Considerable damage threat	VEF	2 hr
Apr 24, 2:07 PM MST	Excessive Heat Watch	VEF	61 hr
Apr 25, 2:11 PM MST	Excessive Heat Warning	VEF	5 days
May 4, 2:14 AM MST	Excessive Heat Watch	VEF	72 hr
May 7, 2:13 PM MST	Fire Weather Watch	VEF	23 hr
May 8, 1:05 PM MST	Red Flag Warning	VEF	56 hr
May 10, 12:45 PM MST	Severe Thunderstorm Warning	VEF	45 min
May 10, 2:01 PM MST	Red Flag Warning	VEF	30 hr
May 10, 3:21 PM MST	Severe Thunderstorm Warning	VEF	39 min
May 11, 12:56 PM MST	Red Flag Warning	VEF	31 hr
May 11, 1:34 PM MST	Wind Advisory	VEF	39 hr
May 16, 2:41 AM MST	Red Flag Warning	VEF	65 hr
May 19, 10:31 AM MST	Wind Advisory	VEF	8 hr
May 21, 3:17 AM MST	Wind Advisory	VEF	41 hr
May 21, 12:59 PM MST	Red Flag Warning	VEF	31 hr
May 22, 1:49 PM MST	Excessive Heat Watch	VEF	37 hr
May 24, 2:32 AM MST	Excessive Heat Warning	VEF	6 days
May 27, 12:24 PM MST	Fire Weather Watch	VEF	25 hr
May 28, 1:05 PM MST	Red Flag Warning	VEF	55 hr
Jun 1, 2:17 PM MST	Excessive Heat Watch	VEF	11 hr
Jun 2, 1:06 AM MST	Excessive Heat Warning	VEF	67 hr
Jun 3, 12:53 PM MST	Fire Weather Watch	VEF	25 hr
Jun 4, 1:45 PM MST	Red Flag Warning	VEF	30 hr
Jun 5, 8:36 PM MST	Wind Advisory	VEF	23 hr
Jun 6, 7:59 PM MST	Wind Advisory	VEF	30 hr
Jun 7, 2:26 AM MST	Lake Wind Advisory	VEF	35 hr
Jun 7, 3:42 AM MST	Red Flag Warning	VEF	16 hr
Jun 8, 7:52 AM MST	Red Flag Warning	VEF	7 hr
Jun 10, 1:56 PM MST	Fire Weather Watch	VEF	25 hr
Jun 11, 2:55 AM MST	Fire Weather Watch	VEF	12 hr
Jun 11, 2:34 PM MST	Red Flag Warning	VEF	32 hr
Jun 11, 2:34 PM MST	Red Flag Warning	VEF	52 hr
Jun 12, 2:43 AM MST	Lake Wind Advisory	VEF	18 hr
Jun 13, 1:24 PM MST	Fire Weather Watch	VEF	24 hr
Jun 14, 1:38 PM MST	Red Flag Warning	VEF	54 hr
Jun 24, 1:01 PM MST	Fire Weather Watch	VEF	48 hr
Jun 26, 1:00 PM MST	Wind Advisory	VEF	60 hr
Jun 26, 1:05 PM MST	Red Flag Warning	VEF	3 days
Jul 4, 1:29 PM MST	Fire Weather Watch	VEF	24 hr
Jul 5, 1:35 PM MST	Red Flag Warning	VEF	54 hr
Jul 6, 2:16 AM MST	Fire Weather Watch	VEF	11 hr
Jul 6, 1:26 PM MST	Red Flag Warning	VEF	55 hr
Jul 7, 3:51 AM MST	Excessive Heat Watch	VEF	34 hr
Jul 8, 1:52 PM MST	Excessive Heat Warning	VEF	5 days
Jul 9, 2:32 PM MST	Heat Advisory	VEF	4 days
Jul 12, 3:37 AM MST	Red Flag Warning	VEF	41 hr
Jul 14, 1:52 AM MST	Red Flag Warning	VEF	18 hr
Jul 20, 11:39 AM MST	Red Flag Warning	VEF	32 hr
Jul 21, 1:55 PM MST	Red Flag Warning	VEF	31 hr
Jul 23, 9:07 PM MST	Flash Flood Warning Considerable damage threat	VEF	3 hr
Jul 24, 1:20 AM MST	Flash Flood Warning Considerable damage threat	VEF	3 hr
Jul 24, 10:56 AM MST	Tornado Warning Tornado observed	VEF	34 min
Jul 24, 11:00 AM MST	Areal Flood Advisory	VEF	52 min
Jul 24, 11:43 AM MST	Flash Flood Warning Considerable damage threat	VEF	4 hr
Jul 24, 12:44 PM MST	Flash Flood Warning Considerable damage threat	VEF	86 min
Jul 24, 1:16 PM MST	Flash Flood Warning Considerable damage threat	VEF	3 hr
Jul 24, 1:30 PM MST	Flash Flood Warning Considerable damage threat	VEF	3 hr
Jul 24, 4:06 PM MST	Flash Flood Warning Considerable damage threat	VEF	3 hr
Jul 24, 5:35 PM MST	Flash Flood Warning Considerable damage threat	VEF	112 min
Jul 27, 1:16 AM MST	Excessive Heat Watch	VEF	26 hr
Jul 28, 3:42 AM MST	Excessive Heat Warning	VEF	5 days
Aug 3, 12:49 PM MST	Fire Weather Watch	VEF	25 hr
Aug 4, 1:34 PM MST	Red Flag Warning	VEF	54 hr
Aug 11, 12:14 PM MST	Excessive Heat Watch	VEF	25 hr
Aug 12, 1:10 PM MST	Excessive Heat Warning	VEF	9 days
Aug 16, 3:57 PM MST	Severe Thunderstorm Warning	VEF	48 min
Aug 18, 3:29 PM MST	Severe Thunderstorm Warning	VEF	61 min
Aug 18, 4:10 PM MST	Severe Thunderstorm Warning	VEF	50 min
Aug 18, 4:23 PM MST	Severe Thunderstorm Warning	VEF	52 min
Aug 18, 4:56 PM MST	Severe Thunderstorm Warning	VEF	19 min
Aug 18, 5:50 PM MST	Areal Flood Advisory	VEF	70 min
Aug 18, 7:32 PM MST	Areal Flood Advisory	VEF	118 min
Aug 21, 5:41 PM MST	Areal Flood Advisory	VEF	3 hr
Aug 22, 2:45 PM MST	Mesoscale Discussion	SPC	90 min
Aug 22, 5:55 PM MST	Flash Flood Warning Considerable damage threat	VEF	3 hr
Aug 23, 2:42 AM MST	Excessive Heat Warning	VEF	5 days
Aug 23, 3:00 PM MST	Severe Thunderstorm Warning	VEF	45 min
Aug 23, 4:26 PM MST	Areal Flood Advisory	VEF	88 min
Aug 23, 6:12 PM MST	Flash Flood Warning Considerable damage threat	VEF	3 hr
Aug 23, 7:30 PM MST	Areal Flood Advisory	VEF	3 hr
Aug 30, 12:47 PM MST	Severe Thunderstorm Warning	VEF	43 min
Aug 30, 1:19 PM MST	Flash Flood Warning Considerable damage threat	VEF	3 hr
Sep 1, 2:01 AM MST	Excessive Heat Watch	VEF	34 hr
Sep 2, 11:53 AM MST	Excessive Heat Warning	VEF	5 days
Sep 5, 1:54 PM MST	Fire Weather Watch	VEF	23 hr
Sep 6, 1:35 AM MST	High Wind Watch	VEF	38 hr
Sep 6, 1:16 PM MST	Red Flag Warning	VEF	3 days
Sep 6, 1:33 PM MST	Wind Advisory	VEF	3 days
Sep 7, 3:30 PM MST	High Wind Warning	VEF	32 hr
Sep 17, 1:07 PM MST	Red Flag Warning	VEF	55 hr
Sep 21, 11:10 AM MST	Areal Flood Advisory	VEF	2 hr
Sep 21, 3:01 PM MST	Areal Flood Advisory	VEF	3 hr
Sep 26, 11:56 AM MST	Fire Weather Watch	VEF	24 hr
Oct 14, 2:30 PM MST	Red Flag Warning	VEF	29 hr
Oct 23, 1:26 PM MST	Fire Weather Watch	VEF	37 hr
Oct 24, 1:56 PM MST	Wind Advisory	VEF	55 hr
Oct 25, 2:24 AM MST	Red Flag Warning	VEF	61 hr
Oct 27, 1:54 AM MST	Lake Wind Advisory	VEF	14 hr
Nov 6, 4:24 AM MST	Winter Storm Watch	VEF	23 hr
Nov 7, 3:04 AM MST	Winter Weather Advisory	VEF	50 hr
Nov 7, 2:58 PM MST	Wind Advisory	VEF	26 hr
Nov 18, 1:39 AM MST	Wind Advisory	VEF	18 hr
Nov 24, 2:19 PM MST	Wind Advisory	VEF	3 days
Nov 25, 2:02 PM MST	Red Flag Warning	VEF	51 hr
Nov 30, 2:29 PM MST	Lake Wind Advisory	VEF	28 hr
Dec 2, 1:49 AM MST	Lake Wind Advisory	VEF	19 hr
Dec 22, 3:13 AM MST	Wind Advisory	VEF	40 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	12
Tornado Warning	1
Mesoscale Discussion	1
Flooding
Areal Flood Warning	1
Flash Flood Warning	14
Flash Flood Watch	2
Areal Flood Advisory	11
Winter
Winter Storm Watch	1
Winter Weather Advisory	1
Heat
Excessive Heat Warning	8
Excessive Heat Watch	8
Heat Advisory	1
Wind and dust
High Wind Warning	2
High Wind Watch	2
Lake Wind Advisory	6
Wind Advisory	16
Fire
Red Flag Warning	25
Fire Weather Watch	13

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2019 2021

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.