Alert archive / Arizona / Coconino County

Weather alerts in Coconino County, Arizona, 2009

127 weather alerts in 2009, 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 2009. Tap one for its archive.

Alerts: 127
Warnings: 46
Watches: 24
Advisories: 56
Busiest month: April24 alerts
Busiest day: July 20, 20099 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 reports fell inside a warning.

Coconino County, 2009

	Warnings	With a report	False alarm ratio	Reports	Inside a warning
Tornado warnings	0			2	0%
Severe thunderstorm warnings	9	0	100%	0
Flash flood warnings	2	1	50%	1	0%

Each office's whole area, 2009

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Flagstaff, AZ: tornado warnings	0			3	0%
NWS Flagstaff, AZ: severe thunderstorm warnings	24	0	100%	3	0%
NWS Flagstaff, AZ: flash flood warnings	12	2	83%	5	60%	75 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 4, 4:14 AM MST	Winter Weather Advisory	FGZ	24 hr
Feb 7, 3:59 AM MST	Winter Weather Advisory	FGZ	43 hr
Feb 8, 3:12 PM MST	Winter Storm Watch	FGZ	13 hr
Feb 8, 3:12 PM MST	Winter Storm Warning	FGZ	48 hr
Feb 9, 4:32 AM MST	Winter Weather Advisory	FGZ	31 hr
Feb 9, 4:03 PM MST	Mesoscale Discussion	SPC	6 hr
Feb 16, 1:43 PM MST	Winter Weather Advisory	FGZ	22 hr
Mar 4, 4:28 AM MST	Wind Advisory	FGZ	15 hr
Mar 5, 3:54 AM MST	Wind Advisory	FGZ	14 hr
Mar 6, 3:47 AM MST	Wind Advisory	FGZ	15 hr
Mar 8, 3:04 PM MST	Wind Advisory	FGZ	30 hr
Mar 21, 3:33 PM MST	High Wind Watch	FGZ	12 hr
Mar 21, 3:33 PM MST	Wind Advisory	FGZ	30 hr
Mar 22, 3:47 AM MST	High Wind Warning	FGZ	19 hr
Mar 22, 4:40 AM MST	Red Flag Warning	FGZ	15 hr
Mar 25, 9:00 AM MST	Wind Advisory	FGZ	34 hr
Mar 28, 2:00 PM MST	Red Flag Warning	FGZ	30 hr
Mar 28, 2:14 PM MST	High Wind Watch	FGZ	14 hr
Mar 28, 2:14 PM MST	Wind Advisory	FGZ	38 hr
Mar 29, 4:37 AM MST	High Wind Warning	FGZ	15 hr
Mar 31, 5:50 AM MST	Fire Weather Watch	FGZ	23 hr
Mar 31, 2:47 PM MST	Wind Advisory	FGZ	28 hr
Apr 1, 4:32 AM MST	Red Flag Warning	FGZ	15 hr
Apr 1, 3:10 PM MST	High Wind Watch	FGZ	31 hr
Apr 2, 9:49 PM MST	High Wind Warning	FGZ	25 hr
Apr 2, 9:49 PM MST	Wind Advisory	FGZ	24 hr
Apr 7, 2:38 AM MST	Fire Weather Watch	FGZ	12 hr
Apr 7, 2:41 PM MST	Red Flag Warning	FGZ	28 hr
Apr 7, 3:08 PM MST	Wind Advisory	FGZ	30 hr
Apr 10, 3:05 PM MST	Winter Weather Advisory	FGZ	23 hr
Apr 13, 3:14 PM MST	High Wind Watch	FGZ	24 hr
Apr 13, 3:14 PM MST	Wind Advisory	FGZ	45 hr
Apr 14, 3:09 PM MST	High Wind Warning	FGZ	27 hr
Apr 15, 11:50 AM MST	Wind Advisory	FGZ	6 hr
Apr 15, 5:58 PM MST	Wind Advisory	FGZ	3 hr
Apr 23, 2:31 PM MST	Fire Weather Watch	FGZ	12 hr
Apr 24, 2:41 AM MST	Red Flag Warning	FGZ	17 hr
Apr 24, 3:01 AM MST	Wind Advisory	FGZ	16 hr
Apr 24, 2:48 PM MST	Fire Weather Watch	FGZ	13 hr
Apr 24, 3:20 PM MST	High Wind Watch	FGZ	12 hr
Apr 24, 3:20 PM MST	Wind Advisory	FGZ	28 hr
Apr 25, 3:34 AM MST	High Wind Warning	FGZ	15 hr
Apr 25, 4:00 AM MST	Red Flag Warning	FGZ	14 hr
Apr 27, 4:00 AM MST	Fire Weather Watch	FGZ	24 hr
Apr 27, 2:36 PM MST	Wind Advisory	FGZ	28 hr
Apr 28, 4:25 AM MST	Red Flag Warning	FGZ	15 hr
May 2, 1:11 PM MST	Wind Advisory	FGZ	7 hr
May 4, 3:02 PM MST	Fire Weather Watch	FGZ	14 hr
May 5, 5:01 AM MST	Red Flag Warning	FGZ	4 hr
May 6, 2:31 PM MST	Fire Weather Watch	FGZ	13 hr
May 8, 1:42 PM MST	Fire Weather Watch	FGZ	15 hr
May 12, 2:56 AM MST	Red Flag Warning	FGZ	17 hr
May 22, 9:40 AM MST	Areal Flood Advisory	FGZ	5 hr
May 22, 10:36 AM MST	Flash Flood Warning	FGZ	3 hr
May 22, 4:46 PM MST	Areal Flood Advisory	FGZ	3 hr
May 24, 6:01 PM MST	Areal Flood Advisory	FGZ	119 min
May 30, 11:42 AM MST	Severe Thunderstorm Warning	FGZ	33 min
May 30, 12:37 PM MST	Areal Flood Advisory	FGZ	113 min
May 30, 3:07 PM MST	Areal Flood Advisory	FGZ	3 hr
Jun 3, 5:15 AM MST	Fire Weather Watch	FGZ	24 hr
Jun 4, 5:38 AM MST	Red Flag Warning	FGZ	13 hr
Jun 4, 2:57 PM MST	Wind Advisory	FGZ	28 hr
Jun 5, 3:51 AM MST	Red Flag Warning	FGZ	15 hr
Jun 5, 2:48 PM MST	Fire Weather Watch	FGZ	13 hr
Jun 6, 2:53 AM MST	Wind Advisory	FGZ	17 hr
Jun 6, 3:52 AM MST	Red Flag Warning	FGZ	16 hr
Jun 13, 10:38 AM MST	Wind Advisory	FGZ	8 hr
Jun 13, 11:37 AM MST	Red Flag Warning	FGZ	8 hr
Jun 17, 2:29 PM MST	Areal Flood Advisory	FGZ	3 hr
Jul 6, 12:05 PM MST	Fire Weather Watch	FGZ	16 hr
Jul 7, 3:40 AM MST	Red Flag Warning	FGZ	16 hr
Jul 18, 3:37 AM MST	Excessive Heat Warning	FGZ	16 hr
Jul 20, 11:00 AM MST	Severe Thunderstorm Warning	FGZ	30 min
Jul 20, 11:14 AM MST	Severe Thunderstorm Warning	FGZ	31 min
Jul 20, 11:58 AM MST	Severe Thunderstorm Warning	FGZ	32 min
Jul 20, 12:18 PM MST	Areal Flood Advisory	FGZ	3 hr
Jul 20, 12:50 PM MST	Areal Flood Advisory	FGZ	3 hr
Jul 20, 1:41 PM MST	Severe Thunderstorm Warning	FGZ	49 min
Jul 20, 1:59 PM MST	Severe Thunderstorm Warning	FGZ	31 min
Jul 20, 2:09 PM MST	Areal Flood Advisory	FGZ	3 hr
Jul 20, 3:54 PM MST	Areal Flood Advisory	FGZ	3 hr
Jul 23, 1:43 PM MST	Areal Flood Advisory	FGZ	3 hr
Jul 28, 4:24 PM MST	Areal Flood Advisory	FGZ	3 hr
Jul 29, 2:27 PM MST	Severe Thunderstorm Warning	FGZ	33 min
Aug 4, 8:35 PM MST	Fire Weather Watch	FGZ	42 hr
Aug 6, 2:15 PM MST	Red Flag Warning	FGZ	30 hr
Aug 7, 2:43 AM MST	Wind Advisory	FGZ	17 hr
Aug 13, 3:24 PM MST	Areal Flood Advisory	FGZ	3 hr
Aug 13, 6:12 PM MST	Areal Flood Advisory	FGZ	108 min
Aug 15, 4:05 AM MST	Red Flag Warning	FGZ	15 hr
Aug 22, 1:38 PM MST	Severe Thunderstorm Warning	FGZ	37 min
Sep 2, 12:14 PM MST	Areal Flood Advisory	FGZ	2 hr
Sep 5, 10:17 AM MST	Flash Flood Watch	FGZ	8 hr
Sep 5, 3:47 PM MST	Severe Thunderstorm Warning	FGZ	43 min
Sep 9, 2:08 PM MST	Areal Flood Advisory	FGZ	112 min
Sep 10, 1:25 PM MST	Areal Flood Advisory	FGZ	3 hr
Sep 10, 2:08 PM MST	Flash Flood Warning	FGZ	2 hr
Sep 12, 3:32 PM MST	Areal Flood Advisory	FGZ	3 hr
Sep 13, 1:11 PM MST	Areal Flood Advisory	FGZ	115 min
Sep 22, 2:35 AM MST	Freeze Warning	FGZ	30 hr
Sep 27, 2:05 PM MST	Fire Weather Watch	FGZ	38 hr
Sep 28, 1:40 PM MST	Wind Advisory	FGZ	51 hr
Sep 29, 3:37 AM MST	Red Flag Warning	FGZ	15 hr
Sep 29, 7:58 PM MST	Red Flag Warning	FGZ	24 hr
Sep 30, 3:21 AM MST	High Wind Warning	FGZ	14 hr
Oct 1, 1:10 PM MST	Freeze Warning	FGZ	20 hr
Oct 3, 1:50 PM MST	High Wind Watch	FGZ	15 hr
Oct 3, 1:50 PM MST	High Wind Warning	FGZ	30 hr
Oct 3, 1:50 PM MST	Wind Advisory	FGZ	30 hr
Oct 3, 2:13 PM MST	Fire Weather Watch	FGZ	14 hr
Oct 5, 9:08 AM MST	Wind Advisory	FGZ	9 hr
Oct 25, 2:01 PM MST	Fire Weather Watch	FGZ	37 hr
Oct 26, 2:31 PM MST	Wind Advisory	FGZ	33 hr
Oct 27, 3:00 AM MST	Red Flag Warning	FGZ	15 hr
Oct 28, 2:18 PM MST	Freeze Warning	FGZ	18 hr
Nov 28, 11:33 AM MST	Winter Weather Advisory	FGZ	16 hr
Dec 5, 6:44 AM MST	Winter Storm Watch	FGZ	47 hr
Dec 6, 2:56 PM MST	Blizzard Warning	FGZ	41 hr
Dec 6, 2:56 PM MST	Winter Storm Warning	FGZ	43 hr
Dec 7, 3:53 AM MST	Wind Advisory	FGZ	23 hr
Dec 7, 5:29 AM MST	Winter Weather Advisory	FGZ	23 hr
Dec 7, 11:14 PM MST	High Wind Warning	FGZ	6 hr
Dec 12, 3:31 PM MST	Winter Weather Advisory	FGZ	24 hr
Dec 13, 11:05 AM MST	Wind Advisory	FGZ	8 hr
Dec 21, 5:15 AM MST	Winter Weather Advisory	FGZ	56 hr
Dec 22, 9:34 AM MST	Winter Storm Warning	FGZ	23 hr
Dec 30, 3:53 AM MST	Winter Weather Advisory	FGZ	22 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	9
Mesoscale Discussion	1
Flooding
Flash Flood Warning	2
Flash Flood Watch	1
Areal Flood Advisory	19
Winter
Blizzard Warning	1
Winter Storm Warning	3
Winter Storm Watch	2
Winter Weather Advisory	10
Heat
Excessive Heat Warning	1
Cold
Freeze Warning	3
Wind and dust
High Wind Warning	8
High Wind Watch	6
Wind Advisory	27
Fire
Red Flag Warning	19
Fire Weather Watch	15

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2008 2010

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.