Alert archive / Colorado / Garfield County

Weather alerts in Garfield County, Colorado, 2008

155 weather alerts in 2008, 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 2008. Tap one for its archive.

Alerts: 155
Warnings: 45
Watches: 34
Advisories: 74
Busiest month: January24 alerts
Busiest day: January 8, 20084 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, 2008

	Warnings	With a report	False alarm ratio
Tornado warnings	0
Severe thunderstorm warnings	2	0	100%
Flash flood warnings	2	0	100%

Each office's whole area, 2008

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Grand Junction, CO: tornado warnings	0			1	0%
NWS Grand Junction, CO: severe thunderstorm warnings	8	0	100%	4	0%
NWS Grand Junction, CO: flash flood warnings	16	1	94%	2	50%	58 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 3, 4:20 AM MST	Winter Storm Watch	GJT	35 hr
Jan 4, 4:04 AM MST	Winter Storm Warning	GJT	4 days
Jan 4, 3:43 PM MST	Snow and Blowing Snow Advisory	GJT	5 hr
Jan 4, 9:10 PM MST	Winter Storm Watch	GJT	18 hr
Jan 5, 1:44 PM MST	Snow Advisory	GJT	52 hr
Jan 6, 3:01 PM MST	Snow and Blowing Snow Advisory	GJT	14 hr
Jan 8, 4:30 AM MST	Winter Storm Watch	GJT	11 hr
Jan 8, 3:10 PM MST	Snow and Blowing Snow Advisory	GJT	33 hr
Jan 8, 3:10 PM MST	Snow Advisory	GJT	37 hr
Jan 8, 3:10 PM MST	Winter Storm Warning	GJT	37 hr
Jan 9, 9:54 AM MST	Heavy Snow Warning	GJT	15 hr
Jan 10, 2:17 AM MST	Dense Fog Advisory	GJT	9 hr
Jan 10, 3:26 PM MST	Snow and Blowing Snow Advisory	GJT	31 hr
Jan 11, 7:31 AM MST	Dense Fog Advisory	GJT	4 hr
Jan 21, 4:50 AM MST	Snow and Blowing Snow Advisory	GJT	27 hr
Jan 24, 4:49 AM MST	Snow and Blowing Snow Advisory	GJT	31 hr
Jan 25, 3:46 PM MST	Winter Storm Watch	GJT	43 hr
Jan 26, 3:28 PM MST	Snow and Blowing Snow Advisory	GJT	61 hr
Jan 26, 3:28 PM MST	Winter Storm Warning	GJT	57 hr
Jan 27, 11:01 PM MST	Winter Weather Advisory	GJT	5 hr
Jan 28, 11:06 AM MST	Mesoscale Discussion	SPC	6 hr
Jan 29, 4:18 AM MST	Snow and Blowing Snow Advisory	GJT	44 hr
Jan 29, 10:04 PM MST	Snow Advisory	GJT	20 hr
Jan 31, 4:44 AM MST	Snow and Blowing Snow Advisory	GJT	43 hr
Feb 1, 3:15 PM MST	Winter Storm Watch	GJT	37 hr
Feb 2, 3:41 PM MST	Heavy Snow Warning	GJT	48 hr
Feb 2, 3:41 PM MST	Snow Advisory	GJT	44 hr
Feb 2, 3:41 PM MST	Winter Storm Warning	GJT	56 hr
Feb 3, 4:25 AM MST	Snow and Blowing Snow Advisory	GJT	9 hr
Feb 5, 3:39 PM MST	Snow and Blowing Snow Advisory	GJT	21 hr
Feb 6, 4:25 AM MST	Winter Storm Watch	GJT	24 hr
Feb 6, 12:31 PM MST	Winter Storm Warning	GJT	64 hr
Feb 6, 7:18 PM MST	Snow and Blowing Snow Advisory	GJT	38 hr
Feb 8, 9:15 AM MST	Dense Fog Advisory	GJT	4 hr
Feb 11, 4:21 AM MST	Snow and Blowing Snow Advisory	GJT	24 hr
Feb 13, 4:29 AM MST	Snow and Blowing Snow Advisory	GJT	50 hr
Feb 13, 12:34 PM MST	Snow Advisory	GJT	41 hr
Feb 21, 3:33 PM MST	Snow Advisory	GJT	44 hr
Feb 23, 3:00 PM MST	Winter Storm Watch	GJT	8 hr
Feb 23, 11:00 PM MST	Snow and Blowing Snow Advisory	GJT	34 hr
Feb 23, 11:00 PM MST	Winter Storm Warning	GJT	53 hr
Feb 24, 3:53 AM MST	Snow Advisory	GJT	48 hr
Mar 1, 4:27 AM MST	Snow and Blowing Snow Advisory	GJT	38 hr
Mar 12, 3:56 PM MDT	Winter Storm Watch	GJT	12 hr
Mar 13, 3:56 AM MDT	Snow and Blowing Snow Advisory	GJT	38 hr
Mar 13, 3:56 AM MDT	Winter Storm Warning	GJT	38 hr
Mar 13, 11:57 AM MDT	Snow Advisory	GJT	30 hr
Mar 16, 4:16 AM MDT	Snow and Blowing Snow Advisory	GJT	32 hr
Mar 19, 3:19 PM MDT	Snow and Blowing Snow Advisory	GJT	30 hr
Mar 29, 3:04 PM MDT	Snow Advisory	GJT	14 hr
Mar 29, 3:04 PM MDT	Winter Storm Watch	GJT	14 hr
Mar 30, 5:12 AM MDT	Snow and Blowing Snow Advisory	GJT	4 hr
Mar 30, 5:12 AM MDT	Snow and Blowing Snow Advisory	GJT	37 hr
Mar 30, 5:12 AM MDT	Winter Storm Warning	GJT	40 hr
Apr 2, 3:01 PM MDT	Snow Advisory	GJT	27 hr
Apr 6, 3:22 PM MDT	Snow Advisory	GJT	33 hr
Apr 8, 3:38 AM MDT	Winter Storm Watch	GJT	24 hr
Apr 8, 3:13 PM MDT	Winter Storm Warning	GJT	48 hr
Apr 9, 3:43 AM MDT	Snow Advisory	GJT	32 hr
Apr 10, 2:51 PM MDT	Snow and Blowing Snow Advisory	GJT	33 hr
Apr 14, 2:43 PM MDT	Wind Advisory	GJT	30 hr
Apr 15, 11:25 AM MDT	Red Flag Warning	GJT	10 hr
Apr 17, 2:29 PM MDT	Fire Weather Watch	GJT	24 hr
Apr 18, 2:04 PM MDT	Fire Weather Watch	GJT	25 hr
Apr 18, 2:04 PM MDT	Red Flag Warning	GJT	31 hr
Apr 19, 2:44 PM MDT	Red Flag Warning	GJT	30 hr
Apr 19, 3:03 PM MDT	Wind Advisory	GJT	30 hr
Apr 20, 1:50 PM MDT	Wind Advisory	GJT	29 hr
Apr 20, 2:50 PM MDT	Red Flag Warning	GJT	28 hr
Apr 21, 3:00 PM MDT	Fire Weather Watch	GJT	24 hr
Apr 22, 2:53 PM MDT	Red Flag Warning	GJT	28 hr
Apr 23, 1:39 PM MDT	Red Flag Warning	GJT	29 hr
Apr 28, 2:28 PM MDT	Red Flag Warning	GJT	31 hr
Apr 29, 2:00 PM MDT	Red Flag Warning	GJT	33 hr
Apr 29, 3:19 PM MDT	Freeze Watch	GJT	36 hr
Apr 30, 3:02 PM MDT	Heavy Snow Warning	GJT	48 hr
Apr 30, 3:02 PM MDT	Snow Advisory	GJT	39 hr
May 1, 3:21 AM MDT	Freeze Warning	GJT	29 hr
May 2, 10:51 AM MDT	Freeze Warning	GJT	21 hr
May 10, 3:13 PM MDT	Fire Weather Watch	GJT	24 hr
May 10, 3:13 PM MDT	Red Flag Warning	GJT	29 hr
May 11, 3:12 PM MDT	Winter Storm Watch	GJT	23 hr
May 12, 2:37 PM MDT	Winter Storm Warning	GJT	27 hr
May 20, 11:27 AM MDT	River Flood Advisory	GJT	3 days
May 20, 11:27 AM MDT	River Flood Advisory	GJT	5 days
May 20, 11:27 AM MDT	River Flood Advisory	GJT	3 days
May 20, 11:27 AM MDT	River Flood Advisory	GJT	19 days
May 21, 10:51 AM MDT	River Flood Advisory	GJT	3 days
May 22, 9:45 AM MDT	Snow Advisory	GJT	32 hr
May 27, 3:22 PM MDT	Fire Weather Watch	GJT	24 hr
May 27, 3:22 PM MDT	Red Flag Warning	GJT	54 hr
May 31, 2:07 PM MDT	Red Flag Warning	GJT	30 hr
Jun 2, 1:16 PM MDT	River Flood Advisory	GJT	3 days
Jun 2, 1:16 PM MDT	River Flood Advisory	GJT	3 days
Jun 4, 3:00 PM MDT	Snow Advisory	GJT	27 hr
Jun 6, 7:32 AM MDT	Dense Fog Advisory	GJT	2 hr
Jun 9, 6:02 AM MDT	Fire Weather Watch	GJT	9 hr
Jun 9, 2:40 PM MDT	Red Flag Warning	GJT	29 hr
Jun 10, 4:48 AM MDT	Wind Advisory	GJT	15 hr
Jun 17, 9:07 AM MDT	River Flood Advisory	GJT	8 days
Jun 30, 6:30 AM MDT	Red Flag Warning	GJT	16 hr
Jul 1, 6:42 AM MDT	Fire Weather Watch	GJT	78 min
Jul 1, 8:00 AM MDT	Red Flag Warning	GJT	13 hr
Jul 4, 3:00 PM MDT	Fire Weather Watch	GJT	15 hr
Jul 4, 3:00 PM MDT	Red Flag Warning	GJT	28 hr
Jul 21, 5:26 PM MDT	Areal Flood Advisory	GJT	3 hr
Jul 22, 7:18 PM MDT	Areal Flood Advisory	GJT	3 hr
Aug 6, 4:34 AM MDT	Flash Flood Watch	GJT	16 hr
Aug 7, 4:25 AM MDT	Flash Flood Watch	GJT	16 hr
Aug 8, 4:30 AM MDT	Flash Flood Watch	GJT	17 hr
Aug 8, 4:32 PM MDT	Flash Flood Warning	GJT	3 hr
Aug 8, 6:01 PM MDT	Flash Flood Warning	GJT	3 hr
Aug 9, 4:27 AM MDT	Flash Flood Watch	GJT	17 hr
Aug 9, 3:44 PM MDT	Areal Flood Advisory	GJT	3 hr
Aug 10, 5:53 PM MDT	Severe Thunderstorm Warning	GJT	52 min
Aug 10, 6:38 PM MDT	Areal Flood Advisory	GJT	3 hr
Aug 10, 7:37 PM MDT	Severe Thunderstorm Warning	GJT	38 min
Aug 25, 2:29 PM MDT	Areal Flood Advisory	GJT	4 hr
Sep 11, 12:44 PM MDT	Mesoscale Discussion	SPC	2 hr
Oct 3, 3:32 PM MDT	Winter Storm Watch	GJT	15 hr
Oct 4, 5:13 AM MDT	Winter Storm Warning	GJT	47 hr
Oct 6, 4:35 AM MDT	Freeze Watch	GJT	10 hr
Oct 6, 2:38 PM MDT	Freeze Warning	GJT	18 hr
Oct 10, 3:00 PM MDT	Winter Weather Advisory	GJT	39 hr
Oct 11, 4:14 AM MDT	Wind Advisory	GJT	17 hr
Oct 12, 3:00 AM MDT	Freeze Watch	GJT	13 hr
Oct 12, 3:30 PM MDT	Freeze Warning	GJT	18 hr
Nov 3, 4:53 AM MST	Winter Storm Watch	GJT	10 hr
Nov 3, 3:06 PM MST	Winter Storm Warning	GJT	60 hr
Nov 3, 3:06 PM MST	Winter Weather Advisory	GJT	60 hr
Nov 10, 8:54 PM MST	Winter Weather Advisory	GJT	15 hr
Nov 12, 4:32 AM MST	Winter Weather Advisory	GJT	49 hr
Nov 26, 3:44 AM MST	Winter Weather Advisory	GJT	62 hr
Nov 28, 2:43 PM MST	Winter Weather Advisory	GJT	57 hr
Nov 29, 12:59 PM MST	Winter Storm Warning	GJT	41 hr
Dec 3, 3:06 PM MST	Winter Weather Advisory	GJT	33 hr
Dec 7, 3:59 PM MST	Winter Weather Advisory	GJT	44 hr
Dec 11, 3:35 PM MST	Winter Storm Watch	GJT	19 hr
Dec 12, 10:53 AM MST	Winter Storm Warning	GJT	52 hr
Dec 12, 3:23 PM MST	Winter Weather Advisory	GJT	44 hr
Dec 12, 4:42 PM MST	Winter Weather Advisory	GJT	4 hr
Dec 13, 3:27 PM MST	Winter Storm Watch	GJT	23 hr
Dec 14, 2:37 PM MST	Winter Storm Warning	GJT	5 days
Dec 14, 2:37 PM MST	Winter Weather Advisory	GJT	51 hr
Dec 16, 3:58 PM MST	Winter Storm Watch	GJT	23 hr
Dec 17, 2:35 PM MST	Winter Weather Advisory	GJT	27 hr
Dec 18, 9:20 PM MST	Winter Storm Watch	GJT	16 hr
Dec 19, 12:55 PM MST	Winter Storm Warning	GJT	19 hr
Dec 19, 12:55 PM MST	Winter Weather Advisory	GJT	34 hr
Dec 20, 3:14 PM MST	Winter Storm Watch	GJT	35 hr
Dec 21, 4:41 AM MST	Winter Storm Warning	GJT	67 hr
Dec 21, 3:29 PM MST	Winter Weather Advisory	GJT	48 hr
Dec 23, 4:15 AM MST	Winter Storm Watch	GJT	35 hr
Dec 23, 3:37 PM MST	Winter Storm Warning	GJT	3 days
Dec 24, 11:58 AM MST	Blizzard Warning	GJT	48 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	2
Mesoscale Discussion	2
Flooding
Flash Flood Warning	2
Flash Flood Watch	4
Areal Flood Advisory	5
River Flood Advisory	8
Winter
Blizzard Warning	1
Heavy Snow Warning	3
Winter Storm Warning	18
Winter Storm Watch	19
Snow Advisory	15
Snow and Blowing Snow Advisory	22
Winter Weather Advisory	15
Cold
Freeze Warning	4
Freeze Watch	3
Wind and dust
Wind Advisory	5
Fire
Red Flag Warning	15
Fire Weather Watch	8
Fog and smoke
Dense Fog Advisory	4

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2007 2009

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.