Alert archive / Arizona / Coconino County

Weather alerts in Coconino County, Arizona, 2015

219 weather alerts in 2015, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Coconino County and its neighbors

Each county as a circle sized by its count in 2015. Tap one for its archive.

Alerts: 219
Warnings: 107
Watches: 7
Advisories: 78
Busiest month: August81 alerts
Busiest day: August 31, 201515 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 2 tornado warnings covering Coconino County in 2015 had a tornado report inside them.

Coconino County, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	2	0	100%	0
Severe thunderstorm warnings	73	7	90%	11	82%	12 min
Flash flood warnings	21	3	86%	6	33%	79 min

Each office's whole area, 2015

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Flagstaff, AZ: tornado warnings	6	0	100%	1	0%
NWS Flagstaff, AZ: severe thunderstorm warnings	144	13	91%	39	51%	13 min
NWS Flagstaff, AZ: flash flood warnings	46	10	78%	28	36%	65 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 12, 4:42 AM MST	Winter Weather Advisory	FGZ	48 hr
Feb 21, 2:10 PM MST	Winter Storm Warning	FGZ	51 hr
Feb 22, 3:30 PM MST	Winter Weather Advisory	FGZ	26 hr
Feb 27, 5:24 PM MST	Wind Advisory	FGZ	26 hr
Feb 28, 2:34 AM MST	Winter Weather Advisory	FGZ	21 hr
Mar 1, 4:12 AM MST	Winter Storm Warning	FGZ	39 hr
Mar 1, 8:10 AM MST	Winter Weather Advisory	FGZ	11 hr
Mar 1, 10:56 AM MST	Areal Flood Advisory	FGZ	36 hr
Mar 1, 4:11 PM MST	Winter Weather Advisory	FGZ	30 hr
Mar 2, 3:35 AM MST	Wind Advisory	FGZ	13 hr
Mar 31, 3:09 PM MST	Fire Weather Watch	FGZ	23 hr
Apr 1, 2:25 PM MST	Red Flag Warning	FGZ	30 hr
Apr 1, 2:27 PM MST	Wind Advisory	FGZ	30 hr
Apr 4, 3:15 AM MST	Fire Weather Watch	FGZ	35 hr
Apr 5, 9:02 AM MST	Wind Advisory	FGZ	33 hr
Apr 5, 2:42 PM MST	Red Flag Warning	FGZ	29 hr
Apr 5, 2:42 PM MST	Red Flag Warning	FGZ	53 hr
Apr 6, 3:06 PM MST	Wind Advisory	FGZ	27 hr
Apr 8, 3:28 AM MST	Wind Advisory	FGZ	15 hr
Apr 13, 2:41 PM MST	Red Flag Warning	FGZ	29 hr
Apr 13, 2:53 PM MST	Wind Advisory	FGZ	29 hr
May 15, 7:05 AM MST	Winter Weather Advisory	FGZ	25 hr
May 25, 10:21 PM MST	Areal Flood Advisory	FGZ	12 hr
Jun 5, 12:36 PM MST	Mesoscale Discussion	SPC	114 min
Jun 5, 1:32 PM MST	Areal Flood Advisory	FGZ	3 hr
Jun 5, 4:37 PM MST	Mesoscale Discussion	SPC	113 min
Jun 5, 6:50 PM MST	Areal Flood Advisory	FGZ	5 hr
Jun 5, 9:11 PM MST	Severe Thunderstorm Warning	FGZ	19 min
Jun 5, 9:33 PM MST	Severe Thunderstorm Warning	FGZ	27 min
Jun 6, 11:53 AM MST	Severe Thunderstorm Warning	FGZ	22 min
Jun 6, 12:10 PM MST	Mesoscale Discussion	SPC	2 hr
Jun 6, 12:13 PM MST	Flash Flood Warning	FGZ	62 min
Jun 13, 1:44 PM MST	Areal Flood Advisory	FGZ	2 hr
Jun 13, 2:06 PM MST	Areal Flood Advisory	FGZ	3 hr
Jun 17, 3:24 PM MST	Excessive Heat Warning	FGZ	5 days
Jun 27, 2:37 AM MST	Excessive Heat Warning	FGZ	18 hr
Jun 30, 3:36 PM MST	Severe Thunderstorm Warning	FGZ	24 min
Jun 30, 3:40 PM MST	Severe Thunderstorm Warning	FGZ	35 min
Jun 30, 4:06 PM MST	Severe Thunderstorm Warning	FGZ	24 min
Jun 30, 4:29 PM MST	Severe Thunderstorm Warning	FGZ	32 min
Jun 30, 7:28 PM MST	Severe Thunderstorm Warning	FGZ	32 min
Jul 1, 2:17 PM MST	Severe Thunderstorm Warning	FGZ	28 min
Jul 1, 2:36 PM MST	Severe Thunderstorm Warning	FGZ	24 min
Jul 1, 2:43 PM MST	Severe Thunderstorm Warning	FGZ	32 min
Jul 1, 3:05 PM MST	Severe Thunderstorm Warning	FGZ	25 min
Jul 1, 3:12 PM MST	Severe Thunderstorm Warning	FGZ	48 min
Jul 1, 3:29 PM MST	Severe Thunderstorm Warning	FGZ	16 min
Jul 1, 3:30 PM MST	Severe Thunderstorm Warning	FGZ	20 min
Jul 1, 4:21 PM MST	Severe Thunderstorm Warning	FGZ	24 min
Jul 1, 4:49 PM MST	Severe Thunderstorm Warning	FGZ	12 min
Jul 1, 5:13 PM MST	Areal Flood Advisory	FGZ	3 hr
Jul 1, 9:05 PM MST	Flash Flood Warning	FGZ	3 hr
Jul 1, 10:15 PM MST	Severe Thunderstorm Warning	FGZ	15 min
Jul 1, 11:49 PM MST	Areal Flood Advisory	FGZ	116 min
Jul 2, 4:40 PM MST	Special Weather Statement	FGZ	35 min
Jul 2, 6:15 PM MST	Flash Flood Warning	FGZ	2 hr
Jul 3, 12:02 PM MST	Special Weather Statement	FGZ	28 min
Jul 3, 3:06 PM MST	Special Weather Statement	FGZ	39 min
Jul 3, 8:00 PM MST	Areal Flood Advisory	FGZ	2 hr
Jul 4, 2:07 PM MST	Areal Flood Advisory	FGZ	4 hr
Jul 4, 3:44 PM MST	Severe Thunderstorm Warning	FGZ	46 min
Jul 4, 5:55 PM MST	Areal Flood Advisory	FGZ	3 hr
Jul 4, 6:42 PM MST	Areal Flood Advisory	FGZ	3 hr
Jul 5, 1:11 PM MST	Areal Flood Advisory	FGZ	4 hr
Jul 6, 4:22 PM MST	Special Weather Statement	FGZ	23 min
Jul 7, 2:49 PM MST	Severe Thunderstorm Warning	FGZ	26 min
Jul 7, 3:00 PM MST	Severe Thunderstorm Warning	FGZ	30 min
Jul 8, 11:31 AM MST	Flash Flood Warning	FGZ	5 hr
Jul 8, 11:56 AM MST	Special Weather Statement	FGZ	34 min
Jul 14, 2:31 PM MST	Flash Flood Warning	FGZ	3 hr
Jul 14, 7:10 PM MST	Flash Flood Warning	FGZ	2 hr
Jul 15, 12:16 PM MST	Areal Flood Advisory	FGZ	119 min
Jul 16, 1:01 PM MST	Special Weather Statement	FGZ	14 min
Jul 16, 2:02 PM MST	Flash Flood Watch	FGZ	57 hr
Jul 17, 1:19 PM MST	Flash Flood Watch	FGZ	34 hr
Jul 17, 9:04 PM MST	Areal Flood Advisory	FGZ	4 hr
Jul 18, 2:13 PM MST	Areal Flood Advisory	FGZ	107 min
Jul 18, 3:55 PM MST	Areal Flood Advisory	FGZ	110 min
Jul 18, 5:25 PM MST	Areal Flood Advisory	FGZ	3 hr
Jul 18, 5:57 PM MST	Areal Flood Advisory	FGZ	108 min
Jul 20, 10:47 AM MST	Flash Flood Warning	FGZ	118 min
Aug 1, 12:07 PM MST	Severe Thunderstorm Warning	FGZ	23 min
Aug 2, 12:51 PM MST	Special Weather Statement	FGZ	39 min
Aug 2, 1:12 PM MST	Flash Flood Watch	FGZ	5 hr
Aug 2, 2:31 PM MST	Areal Flood Advisory	FGZ	3 hr
Aug 6, 11:47 AM MST	Flash Flood Watch	FGZ	36 hr
Aug 7, 10:36 AM MST	Areal Flood Advisory	FGZ	3 hr
Aug 7, 11:15 AM MST	Flash Flood Warning	FGZ	3 hr
Aug 7, 11:27 AM MST	Mesoscale Discussion	SPC	2 hr
Aug 7, 11:59 AM MST	Severe Thunderstorm Warning	FGZ	46 min
Aug 7, 1:49 PM MST	Areal Flood Advisory	FGZ	9 hr
Aug 7, 2:15 PM MST	Flash Flood Warning	FGZ	90 min
Aug 7, 6:07 PM MST	Severe Thunderstorm Warning	FGZ	23 min
Aug 7, 6:25 PM MST	Severe Thunderstorm Warning	FGZ	35 min
Aug 7, 10:40 PM MST	Areal Flood Advisory	FGZ	110 min
Aug 8, 12:20 PM MST	Special Weather Statement	FGZ	25 min
Aug 8, 12:27 PM MST	Mesoscale Discussion	SPC	93 min
Aug 8, 12:32 PM MST	Areal Flood Advisory	FGZ	118 min
Aug 8, 12:54 PM MST	Special Weather Statement	FGZ	51 min
Aug 8, 1:17 PM MST	Severe Thunderstorm Warning	FGZ	28 min
Aug 8, 2:22 PM MST	Special Weather Statement	FGZ	23 min
Aug 8, 2:45 PM MST	Severe Thunderstorm Warning	FGZ	30 min
Aug 9, 12:58 PM MST	Severe Thunderstorm Warning	FGZ	47 min
Aug 9, 2:05 PM MST	Special Weather Statement	FGZ	25 min
Aug 9, 2:10 PM MST	Severe Thunderstorm Warning	FGZ	50 min
Aug 9, 2:22 PM MST	Tornado Warning	FGZ	23 min
Aug 9, 2:42 PM MST	Severe Thunderstorm Warning	FGZ	33 min
Aug 9, 3:00 PM MST	Severe Thunderstorm Warning	FGZ	21 min
Aug 9, 3:29 PM MST	Flash Flood Warning	FGZ	3 hr
Aug 11, 10:28 AM MST	Mesoscale Discussion	SPC	92 min
Aug 11, 11:30 AM MST	Severe Thunderstorm Warning	FGZ	30 min
Aug 11, 12:00 PM MST	Severe Thunderstorm Warning	FGZ	33 min
Aug 11, 12:52 PM MST	Severe Thunderstorm Warning	FGZ	23 min
Aug 11, 3:42 PM MST	Severe Thunderstorm Warning	FGZ	48 min
Aug 11, 7:11 PM MST	Severe Thunderstorm Warning	FGZ	49 min
Aug 11, 8:10 PM MST	Severe Thunderstorm Warning	FGZ	50 min
Aug 12, 12:19 PM MST	Areal Flood Advisory	FGZ	12 hr
Aug 12, 2:28 PM MST	Severe Thunderstorm Warning	FGZ	47 min
Aug 12, 4:39 PM MST	Areal Flood Advisory	FGZ	4 hr
Aug 12, 5:13 PM MST	Severe Thunderstorm Warning	FGZ	32 min
Aug 13, 1:53 PM MST	Areal Flood Advisory	FGZ	3 hr
Aug 13, 2:07 PM MST	Special Weather Statement	FGZ	23 min
Aug 15, 1:57 PM MST	Areal Flood Advisory	FGZ	3 hr
Aug 15, 2:36 PM MST	Areal Flood Advisory	FGZ	3 hr
Aug 15, 4:45 PM MST	Areal Flood Advisory	FGZ	3 hr
Aug 22, 6:21 PM MST	Areal Flood Advisory	FGZ	114 min
Aug 23, 2:13 PM MST	Severe Thunderstorm Warning	FGZ	32 min
Aug 23, 2:38 PM MST	Severe Thunderstorm Warning	FGZ	22 min
Aug 24, 3:16 PM MST	Severe Thunderstorm Warning	FGZ	17 min
Aug 25, 6:14 PM MST	Areal Flood Advisory	FGZ	3 hr
Aug 26, 1:53 PM MST	Severe Thunderstorm Warning	FGZ	31 min
Aug 26, 2:12 PM MST	Severe Thunderstorm Warning	FGZ	48 min
Aug 26, 2:41 PM MST	Areal Flood Advisory	FGZ	3 hr
Aug 26, 2:46 PM MST	Areal Flood Advisory	FGZ	3 hr
Aug 26, 4:01 PM MST	Flash Flood Warning	FGZ	4 hr
Aug 27, 5:47 AM MST	Areal Flood Advisory	FGZ	8 hr
Aug 27, 3:49 PM MST	Severe Thunderstorm Warning	FGZ	24 min
Aug 27, 6:44 PM MST	Severe Thunderstorm Warning	FGZ	31 min
Aug 30, 10:59 AM MST	Special Weather Statement	FGZ	31 min
Aug 30, 12:17 PM MST	Severe Thunderstorm Warning	FGZ	28 min
Aug 30, 12:52 PM MST	Severe Thunderstorm Warning	FGZ	23 min
Aug 30, 1:09 PM MST	Flash Flood Warning	FGZ	3 hr
Aug 30, 1:23 PM MST	Areal Flood Advisory	FGZ	112 min
Aug 30, 1:24 PM MST	Flash Flood Warning	FGZ	3 hr
Aug 30, 1:51 PM MST	Areal Flood Advisory	FGZ	3 hr
Aug 30, 2:14 PM MST	Flash Flood Warning	FGZ	3 hr
Aug 30, 4:44 PM MST	Severe Thunderstorm Warning	FGZ	31 min
Aug 30, 5:16 PM MST	Severe Thunderstorm Warning	FGZ	18 min
Aug 31, 11:25 AM MST	Areal Flood Advisory	FGZ	3 hr
Aug 31, 12:08 PM MST	Severe Thunderstorm Warning	FGZ	37 min
Aug 31, 12:31 PM MST	Flash Flood Warning	FGZ	3 hr
Aug 31, 12:32 PM MST	Special Weather Statement	FGZ	28 min
Aug 31, 12:38 PM MST	Severe Thunderstorm Warning	FGZ	22 min
Aug 31, 12:46 PM MST	Flash Flood Warning	FGZ	3 hr
Aug 31, 1:18 PM MST	Special Weather Statement	FGZ	27 min
Aug 31, 1:20 PM MST	Severe Thunderstorm Warning	FGZ	40 min
Aug 31, 1:26 PM MST	Severe Thunderstorm Warning	FGZ	34 min
Aug 31, 1:33 PM MST	Areal Flood Advisory	FGZ	3 hr
Aug 31, 1:33 PM MST	Severe Thunderstorm Warning	FGZ	27 min
Aug 31, 2:05 PM MST	Areal Flood Advisory	FGZ	3 hr
Aug 31, 3:34 PM MST	Areal Flood Advisory	FGZ	3 hr
Aug 31, 4:27 PM MST	Severe Thunderstorm Warning	FGZ	33 min
Aug 31, 5:03 PM MST	Flash Flood Warning	FGZ	3 hr
Sep 1, 12:58 PM MST	Flash Flood Warning	FGZ	3 hr
Sep 1, 1:16 PM MST	Special Weather Statement	FGZ	29 min
Sep 1, 1:36 PM MST	Flash Flood Warning	FGZ	3 hr
Sep 1, 1:59 PM MST	Areal Flood Advisory	FGZ	3 hr
Sep 2, 1:14 PM MST	Special Weather Statement	FGZ	16 min
Sep 2, 2:52 PM MST	Severe Thunderstorm Warning	FGZ	23 min
Sep 2, 4:32 PM MST	Special Weather Statement	FGZ	28 min
Sep 3, 2:28 PM MST	Areal Flood Advisory	FGZ	3 hr
Sep 6, 2:35 PM MST	Areal Flood Advisory	FGZ	3 hr
Sep 6, 7:13 PM MST	Areal Flood Advisory	FGZ	6 hr
Sep 14, 12:34 PM MST	Areal Flood Advisory	FGZ	3 hr
Sep 14, 1:27 PM MST	Special Weather Statement	FGZ	33 min
Sep 14, 1:34 PM MST	Severe Thunderstorm Warning	FGZ	26 min
Sep 14, 1:34 PM MST	Severe Thunderstorm Warning	FGZ	41 min
Sep 14, 3:33 PM MST	Areal Flood Advisory	FGZ	5 hr
Sep 14, 10:21 PM MST	Special Weather Statement	FGZ	24 min
Sep 15, 2:04 PM MST	Flash Flood Warning	FGZ	6 hr
Sep 15, 8:10 PM MST	Flash Flood Warning	FGZ	3 hr
Sep 20, 1:15 PM MST	Flash Flood Watch	FGZ	38 hr
Sep 22, 3:15 PM MST	Areal Flood Advisory	FGZ	2 hr
Oct 2, 5:07 AM MST	Red Flag Warning	FGZ	14 hr
Oct 2, 2:23 PM MST	Freeze Warning	FGZ	18 hr
Oct 5, 12:55 PM MST	Mesoscale Discussion	SPC	3 hr
Oct 5, 4:38 PM MST	Severe Thunderstorm Warning	FGZ	37 min
Oct 5, 7:11 PM MST	Severe Thunderstorm Warning	FGZ	34 min
Oct 6, 5:40 PM MST	Tornado Warning	FGZ	20 min
Oct 6, 6:06 PM MST	Severe Thunderstorm Warning	FGZ	24 min
Oct 18, 8:09 PM MST	Severe Thunderstorm Warning	FGZ	36 min
Oct 18, 10:37 PM MST	Severe Thunderstorm Warning	FGZ	23 min
Oct 18, 11:34 PM MST	Severe Thunderstorm Warning	FGZ	41 min
Oct 19, 12:01 AM MST	Severe Thunderstorm Warning	FGZ	29 min
Oct 19, 2:59 AM MST	Severe Thunderstorm Warning	FGZ	16 min
Oct 19, 3:15 AM MST	Severe Thunderstorm Warning	FGZ	30 min
Oct 19, 6:27 PM MST	Areal Flood Advisory	FGZ	12 hr
Oct 20, 1:56 AM MST	Severe Thunderstorm Warning	FGZ	24 min
Oct 20, 6:24 AM MST	Areal Flood Advisory	FGZ	6 hr
Oct 20, 9:37 AM MST	Severe Thunderstorm Warning	FGZ	23 min
Oct 20, 9:59 AM MST	Severe Thunderstorm Warning	FGZ	15 min
Oct 20, 10:24 AM MST	Severe Thunderstorm Warning	FGZ	36 min
Oct 20, 11:28 AM MST	Severe Thunderstorm Warning	FGZ	32 min
Nov 1, 3:10 AM MST	Wind Advisory	FGZ	39 hr
Nov 3, 3:45 AM MST	Wind Advisory	FGZ	14 hr
Nov 3, 2:28 PM MST	Winter Weather Advisory	FGZ	33 hr
Nov 5, 5:01 AM MST	Freeze Warning	FGZ	27 hr
Nov 10, 4:33 AM MST	Wind Advisory	FGZ	14 hr
Nov 15, 3:34 PM MST	Winter Weather Advisory	FGZ	31 hr
Nov 23, 2:49 PM MST	Wind Advisory	FGZ	52 hr
Dec 10, 2:23 PM MST	Wind Advisory	FGZ	29 hr
Dec 11, 6:07 AM MST	Winter Weather Advisory	FGZ	36 hr
Dec 13, 3:35 AM MST	Winter Weather Advisory	FGZ	38 hr
Dec 14, 5:57 PM MST	Winter Weather Advisory	FGZ	2 hr
Dec 22, 8:54 PM MST	Dense Fog Advisory	FGZ	12 hr
Dec 22, 8:54 PM MST	Freezing Fog Advisory	FGZ	7 hr
Dec 23, 2:46 PM MST	Winter Weather Advisory	FGZ	44 hr
Dec 24, 5:34 PM MST	Wind Advisory	FGZ	23 hr
Dec 26, 3:50 AM MST	Wind Advisory	FGZ	16 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	73
Tornado Warning	2
Mesoscale Discussion	7
Special Weather Statement	20
Flooding
Flash Flood Warning	21
Flash Flood Watch	5
Areal Flood Advisory	50
Winter
Winter Storm Warning	2
Winter Weather Advisory	12
Heat
Excessive Heat Warning	2
Cold
Freeze Warning	2
Wind and dust
Wind Advisory	14
Fire
Red Flag Warning	5
Fire Weather Watch	2
Fog and smoke
Dense Fog Advisory	1
Freezing Fog Advisory	1

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2014 2016

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.