Alert archive / Colorado / Garfield County

Weather alerts in Garfield County, Colorado, 2010

191 weather alerts in 2010, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Garfield County and its neighbors

Each county as a circle sized by its count in 2010. Tap one for its archive.

Alerts: 191
Warnings: 68
Watches: 46
Advisories: 73
Busiest month: May33 alerts
Busiest day: June 12, 20106 alerts

Over time

By month

Warning verification

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

Garfield County, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	8	1	88%	10	10%	33 min
Flash flood warnings	0			1	0%

Each office's whole area, 2010

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Grand Junction, CO: tornado warnings	1	0	100%	0
NWS Grand Junction, CO: severe thunderstorm warnings	49	8	84%	38	24%	21 min
NWS Grand Junction, CO: flash flood warnings	20	3	85%	10	40%	60 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 1, 2:55 PM MST	Winter Weather Advisory	GJT	29 hr
Jan 4, 2:49 PM MST	Winter Weather Advisory	GJT	54 hr
Jan 17, 3:29 PM MST	Winter Weather Advisory	GJT	48 hr
Jan 19, 3:30 PM MST	Winter Weather Advisory	GJT	27 hr
Jan 20, 4:09 PM MST	Winter Storm Warning	GJT	5 days
Jan 20, 4:09 PM MST	Winter Weather Advisory	GJT	60 hr
Jan 23, 4:34 AM MST	Winter Weather Advisory	GJT	37 hr
Jan 26, 3:55 PM MST	Winter Storm Warning	GJT	44 hr
Jan 26, 3:55 PM MST	Winter Weather Advisory	GJT	44 hr
Jan 28, 3:06 PM MST	Dense Fog Advisory	GJT	22 hr
Feb 4, 7:22 AM MST	Dense Fog Advisory	GJT	5 hr
Feb 4, 3:09 PM MST	Dense Fog Advisory	GJT	21 hr
Feb 5, 2:43 PM MST	Winter Storm Watch	GJT	13 hr
Feb 6, 3:43 AM MST	Winter Weather Advisory	GJT	54 hr
Feb 7, 8:23 PM MST	Dense Fog Advisory	GJT	13 hr
Feb 12, 4:39 PM MST	Winter Weather Advisory	GJT	40 hr
Feb 16, 7:21 AM MST	Dense Fog Advisory	GJT	4 hr
Feb 16, 6:31 PM MST	Dense Fog Advisory	GJT	17 hr
Feb 17, 3:21 PM MST	Winter Weather Advisory	GJT	37 hr
Feb 18, 4:06 AM MST	Winter Weather Advisory	GJT	4 days
Feb 18, 9:27 PM MST	Winter Storm Warning	GJT	4 days
Feb 18, 9:36 PM MST	Dense Fog Advisory	GJT	13 hr
Feb 24, 4:31 AM MST	Winter Weather Advisory	GJT	48 hr
Mar 3, 3:18 PM MST	Winter Weather Advisory	GJT	63 hr
Mar 6, 4:47 AM MST	Winter Weather Advisory	GJT	61 hr
Mar 13, 3:36 AM MST	Winter Weather Advisory	GJT	43 hr
Mar 15, 3:32 AM MDT	Dense Fog Advisory	GJT	7 hr
Mar 17, 3:27 PM MDT	Winter Storm Warning	GJT	61 hr
Mar 17, 3:27 PM MDT	Winter Weather Advisory	GJT	61 hr
Mar 22, 3:50 AM MDT	Winter Weather Advisory	GJT	55 hr
Mar 25, 4:53 AM MDT	Winter Weather Advisory	GJT	55 hr
Mar 26, 2:42 PM MDT	Winter Storm Warning	GJT	21 hr
Mar 29, 3:54 PM MDT	Wind Advisory	GJT	28 hr
Mar 30, 4:10 AM MDT	Winter Storm Watch	GJT	24 hr
Mar 30, 8:00 PM MDT	Wind Advisory	GJT	25 hr
Mar 31, 4:16 AM MDT	Winter Storm Warning	GJT	59 hr
Mar 31, 4:16 AM MDT	Winter Weather Advisory	GJT	48 hr
Apr 2, 3:34 PM MDT	Winter Weather Advisory	GJT	41 hr
Apr 4, 4:24 AM MDT	Winter Storm Watch	GJT	19 hr
Apr 4, 4:38 AM MDT	Wind Advisory	GJT	46 hr
Apr 4, 3:02 PM MDT	Winter Storm Warning	GJT	66 hr
Apr 11, 3:16 PM MDT	Wind Advisory	GJT	33 hr
Apr 12, 8:52 AM MDT	Red Flag Warning	GJT	15 hr
Apr 22, 2:35 PM MDT	Winter Storm Warning	GJT	45 hr
Apr 22, 2:35 PM MDT	Winter Weather Advisory	GJT	37 hr
Apr 26, 3:07 PM MDT	High Wind Watch	GJT	23 hr
Apr 26, 3:29 PM MDT	Fire Weather Watch	GJT	14 hr
Apr 26, 3:29 PM MDT	Fire Weather Watch	GJT	23 hr
Apr 27, 5:58 AM MDT	Red Flag Warning	GJT	14 hr
Apr 27, 2:21 PM MDT	High Wind Warning	GJT	34 hr
Apr 27, 2:45 PM MDT	Red Flag Warning	GJT	30 hr
Apr 27, 9:17 PM MDT	Winter Weather Advisory	GJT	3 days
Apr 28, 2:56 PM MDT	Freeze Watch	GJT	14 hr
Apr 29, 4:38 AM MDT	Freeze Warning	GJT	28 hr
Apr 29, 11:24 AM MDT	Winter Storm Warning	GJT	43 hr
Apr 29, 3:04 PM MDT	Freeze Watch	GJT	21 hr
Apr 30, 12:27 PM MDT	Freeze Watch	GJT	29 hr
Apr 30, 12:27 PM MDT	Freeze Warning	GJT	21 hr
May 1, 6:13 AM MDT	Dense Fog Advisory	GJT	3 hr
May 1, 2:31 PM MDT	Winter Weather Advisory	GJT	38 hr
May 1, 4:16 PM MDT	Freeze Warning	GJT	15 hr
May 2, 4:48 AM MDT	Freeze Watch	GJT	10 hr
May 2, 2:29 PM MDT	Freeze Warning	GJT	18 hr
May 3, 2:52 PM MDT	Wind Advisory	GJT	30 hr
May 3, 3:04 PM MDT	Fire Weather Watch	GJT	23 hr
May 4, 8:55 AM MDT	Red Flag Warning	GJT	11 hr
May 4, 2:26 PM MDT	Red Flag Warning	GJT	30 hr
May 5, 6:32 AM MDT	Fire Weather Watch	GJT	8 hr
May 5, 2:49 PM MDT	Red Flag Warning	GJT	29 hr
May 6, 4:25 AM MDT	Freeze Watch	GJT	11 hr
May 6, 3:23 PM MDT	Freeze Warning	GJT	18 hr
May 7, 2:58 PM MDT	Fire Weather Watch	GJT	24 hr
May 8, 2:51 PM MDT	Red Flag Warning	GJT	30 hr
May 11, 4:41 AM MDT	Wind Advisory	GJT	15 hr
May 11, 6:32 AM MDT	Red Flag Warning	GJT	13 hr
May 14, 3:00 PM MDT	Winter Weather Advisory	GJT	21 hr
May 17, 3:00 PM MDT	Winter Weather Advisory	GJT	53 hr
May 19, 12:26 PM MDT	Fire Weather Watch	GJT	3 hr
May 19, 12:26 PM MDT	Fire Weather Watch	GJT	26 hr
May 19, 3:07 PM MDT	Red Flag Warning	GJT	54 hr
May 20, 2:48 PM MDT	Fire Weather Watch	GJT	46 hr
May 20, 2:48 PM MDT	Red Flag Warning	GJT	54 hr
May 20, 3:03 PM MDT	High Wind Watch	GJT	13 hr
May 20, 3:03 PM MDT	Wind Advisory	GJT	30 hr
May 21, 4:21 AM MDT	High Wind Warning	GJT	41 hr
May 21, 4:21 AM MDT	Wind Advisory	GJT	41 hr
May 22, 3:32 PM MDT	Wind Advisory	GJT	32 hr
May 25, 2:15 PM MDT	Red Flag Warning	GJT	31 hr
May 26, 10:18 AM MDT	Red Flag Warning	GJT	35 hr
May 27, 2:23 PM MDT	Red Flag Warning	GJT	31 hr
May 27, 8:09 PM MDT	Wind Advisory	GJT	25 hr
Jun 7, 2:20 PM MDT	Severe Thunderstorm Watch	SPC	7 hr
Jun 8, 2:50 PM MDT	Fire Weather Watch	GJT	24 hr
Jun 9, 2:58 PM MDT	Red Flag Warning	GJT	30 hr
Jun 12, 5:09 AM MDT	Severe Thunderstorm Warning	GJT	51 min
Jun 12, 5:11 AM MDT	Severe Thunderstorm Warning	GJT	49 min
Jun 12, 5:55 AM MDT	Severe Thunderstorm Warning	GJT	50 min
Jun 12, 5:59 AM MDT	Severe Thunderstorm Warning	GJT	46 min
Jun 12, 6:48 AM MDT	Severe Thunderstorm Warning	GJT	40 min
Jun 12, 11:29 AM MDT	Severe Thunderstorm Warning	GJT	31 min
Jun 15, 2:18 PM MDT	Red Flag Warning	GJT	31 hr
Jun 16, 3:05 AM MDT	Wind Advisory	GJT	18 hr
Jun 18, 12:42 PM MDT	Fire Weather Watch	GJT	2 hr
Jun 18, 3:01 PM MDT	Red Flag Warning	GJT	30 hr
Jun 19, 3:12 PM MDT	Red Flag Warning	GJT	30 hr
Jun 21, 9:47 AM MDT	Red Flag Warning	GJT	11 hr
Jun 21, 2:43 PM MDT	Red Flag Warning	GJT	30 hr
Jul 3, 1:19 PM MDT	Fire Weather Watch	GJT	14 hr
Jul 3, 1:19 PM MDT	Red Flag Warning	GJT	7 hr
Jul 4, 3:31 AM MDT	Red Flag Warning	GJT	16 hr
Jul 4, 2:42 PM MDT	Mesoscale Discussion	SPC	63 min
Jul 27, 7:07 PM MDT	Areal Flood Advisory	GJT	3 hr
Jul 28, 4:11 AM MDT	Flash Flood Watch	GJT	17 hr
Jul 28, 1:40 PM MDT	Flash Flood Watch	GJT	31 hr
Jul 28, 5:22 PM MDT	Areal Flood Advisory	GJT	3 hr
Jul 31, 3:03 PM MDT	Flash Flood Watch	GJT	3 days
Aug 2, 3:41 PM MDT	Areal Flood Advisory	GJT	3 hr
Aug 4, 3:16 AM MDT	Flash Flood Watch	GJT	18 hr
Aug 4, 12:13 PM MDT	Areal Flood Advisory	GJT	3 hr
Aug 4, 1:36 PM MDT	Severe Thunderstorm Warning	GJT	39 min
Aug 5, 4:38 AM MDT	Flash Flood Watch	GJT	17 hr
Aug 6, 12:09 PM MDT	Areal Flood Advisory	GJT	3 hr
Aug 19, 4:29 AM MDT	Flash Flood Watch	GJT	17 hr
Aug 19, 3:12 PM MDT	Areal Flood Advisory	GJT	2 hr
Aug 29, 4:33 AM MDT	Wind Advisory	GJT	16 hr
Aug 29, 1:13 PM MDT	Mesoscale Discussion	SPC	2 hr
Sep 3, 2:13 PM MDT	Fire Weather Watch	GJT	24 hr
Sep 4, 2:38 PM MDT	Red Flag Warning	GJT	30 hr
Sep 5, 4:50 AM MDT	Freeze Warning	GJT	44 min
Sep 5, 5:34 AM MDT	Freeze Watch	GJT	23 hr
Sep 6, 4:19 AM MDT	Freeze Warning	GJT	28 hr
Sep 9, 4:57 AM MDT	Wind Advisory	GJT	16 hr
Sep 9, 10:07 AM MDT	Red Flag Warning	GJT	11 hr
Sep 10, 3:31 PM MDT	Freeze Warning	GJT	17 hr
Sep 17, 3:08 PM MDT	Fire Weather Watch	GJT	24 hr
Sep 17, 3:08 PM MDT	Red Flag Warning	GJT	30 hr
Sep 18, 2:40 PM MDT	Red Flag Warning	GJT	30 hr
Sep 19, 2:49 PM MDT	Red Flag Warning	GJT	30 hr
Oct 6, 2:58 PM MDT	Severe Thunderstorm Watch	SPC	5 hr
Oct 6, 4:59 PM MDT	Severe Thunderstorm Warning	GJT	46 min
Oct 6, 5:58 PM MDT	Mesoscale Discussion	SPC	62 min
Oct 7, 1:53 PM MDT	Severe Thunderstorm Watch	SPC	6 hr
Oct 7, 6:01 PM MDT	Mesoscale Discussion	SPC	59 min
Oct 12, 11:59 AM MDT	Freeze Warning	GJT	21 hr
Oct 13, 4:31 AM MDT	Freeze Watch	GJT	7 hr
Oct 13, 11:54 AM MDT	Freeze Warning	GJT	21 hr
Oct 21, 2:55 AM MDT	Winter Storm Warning	GJT	57 hr
Oct 23, 6:09 AM MDT	Winter Storm Watch	GJT	32 hr
Oct 23, 3:00 PM MDT	Freeze Watch	GJT	24 hr
Oct 23, 3:16 PM MDT	Winter Storm Warning	GJT	69 hr
Oct 24, 2:34 PM MDT	Freeze Warning	GJT	42 hr
Oct 26, 12:00 PM MDT	Winter Weather Advisory	GJT	21 hr
Nov 7, 3:21 PM MST	Winter Storm Watch	GJT	7 hr
Nov 7, 3:21 PM MST	Winter Weather Advisory	GJT	54 hr
Nov 7, 10:04 PM MST	Winter Storm Warning	GJT	47 hr
Nov 10, 3:34 AM MST	Winter Weather Advisory	GJT	44 hr
Nov 13, 1:44 PM MST	Winter Weather Advisory	GJT	27 hr
Nov 14, 3:54 AM MST	Winter Weather Advisory	GJT	44 hr
Nov 15, 3:16 AM MST	Winter Storm Warning	GJT	49 hr
Nov 15, 3:23 PM MST	Winter Storm Warning	GJT	37 hr
Nov 15, 3:23 PM MST	Winter Weather Advisory	GJT	33 hr
Nov 16, 4:02 AM MST	Wind Advisory	GJT	16 hr
Nov 19, 3:08 PM MST	Winter Storm Watch	GJT	3 hr
Nov 19, 5:56 PM MST	Winter Storm Warning	GJT	3 days
Nov 20, 4:00 AM MST	Winter Storm Watch	GJT	10 hr
Nov 21, 10:09 AM MST	Wind Advisory	GJT	10 hr
Nov 22, 4:29 AM MST	Blizzard Watch	GJT	23 hr
Nov 22, 3:10 PM MST	High Wind Watch	GJT	13 hr
Nov 22, 3:13 PM MST	Blizzard Warning	GJT	54 hr
Nov 22, 3:13 PM MST	Winter Storm Watch	GJT	12 hr
Nov 23, 3:20 AM MST	Winter Weather Advisory	GJT	38 hr
Nov 23, 3:41 AM MST	High Wind Warning	GJT	25 hr
Nov 26, 3:35 PM MST	Winter Storm Watch	GJT	24 hr
Nov 27, 3:59 AM MST	Winter Weather Advisory	GJT	63 hr
Nov 27, 3:49 PM MST	Winter Storm Warning	GJT	51 hr
Dec 5, 2:41 PM MST	Winter Weather Advisory	GJT	45 hr
Dec 6, 11:24 PM MST	Dense Fog Advisory	GJT	11 hr
Dec 8, 3:03 PM MST	Winter Storm Watch	GJT	23 hr
Dec 9, 2:18 PM MST	Winter Storm Warning	GJT	49 hr
Dec 9, 2:18 PM MST	Winter Weather Advisory	GJT	49 hr
Dec 14, 2:30 PM MST	Winter Weather Advisory	GJT	52 hr
Dec 17, 4:06 AM MST	Winter Storm Watch	GJT	24 hr
Dec 17, 4:06 AM MST	Winter Weather Advisory	GJT	3 days
Dec 18, 4:04 AM MST	Winter Storm Warning	GJT	6 days
Dec 22, 3:04 PM MST	Winter Weather Advisory	GJT	17 hr
Dec 25, 1:01 AM MST	Dense Fog Advisory	GJT	8 hr
Dec 25, 8:13 PM MST	Dense Fog Advisory	GJT	13 hr
Dec 27, 3:13 PM MST	Winter Storm Watch	GJT	24 hr
Dec 28, 3:26 PM MST	Winter Storm Warning	GJT	67 hr
Dec 28, 3:26 PM MST	Winter Weather Advisory	GJT	18 hr
Dec 28, 5:18 PM MST	Dense Fog Advisory	GJT	8 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	8
Severe Thunderstorm Watch	3
Mesoscale Discussion	4
Flooding
Flash Flood Watch	6
Areal Flood Advisory	6
Winter
Blizzard Warning	1
Winter Storm Warning	19
Blizzard Watch	1
Winter Storm Watch	12
Winter Weather Advisory	39
Cold
Freeze Warning	11
Freeze Watch	8
Wind and dust
High Wind Warning	3
High Wind Watch	3
Wind Advisory	15
Fire
Red Flag Warning	26
Fire Weather Watch	13
Fog and smoke
Dense Fog Advisory	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 2009 2011

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.