Alert archive / Colorado / Garfield County

Weather alerts in Garfield County, Colorado, 2019

170 weather alerts in 2019, 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 2019. Tap one for its archive.

Alerts: 170
Warnings: 48
Watches: 32
Advisories: 58
Busiest month: October26 alerts
Busiest day: July 26, 20199 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, 2019

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
Tornado warnings	0			0
Severe thunderstorm warnings	5	1	80%	11	18%	17 min
Flash flood warnings	2	0	100%	2	0%

Each office's whole area, 2019

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Grand Junction, CO: severe thunderstorm warnings	15	2	87%	42	7%	12 min
NWS Grand Junction, CO: flash flood warnings	7	2	71%	7	29%	40 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, 4:47 PM MST	Areal Flood Advisory	GJT	49 hr
Jan 5, 3:41 AM MST	Winter Weather Advisory	GJT	68 hr
Jan 8, 7:45 AM MST	Dense Fog Advisory	GJT	4 hr
Jan 10, 2:10 AM MST	Dense Fog Advisory	GJT	8 hr
Jan 10, 3:29 PM MST	Winter Weather Advisory	GJT	33 hr
Jan 11, 4:29 AM MST	Dense Fog Advisory	GJT	71 min
Jan 12, 7:58 AM MST	Dense Fog Advisory	GJT	3 hr
Jan 12, 10:21 PM MST	Dense Fog Advisory	GJT	11 hr
Jan 14, 2:15 PM MST	Winter Weather Advisory	GJT	55 hr
Jan 16, 2:38 PM MST	Winter Weather Advisory	GJT	57 hr
Jan 16, 8:59 PM MST	Winter Storm Warning	GJT	51 hr
Jan 20, 3:08 AM MST	Winter Weather Advisory	GJT	53 hr
Jan 22, 2:58 PM MST	Winter Weather Advisory	GJT	59 hr
Jan 25, 3:34 AM MST	Winter Weather Advisory	GJT	28 hr
Feb 1, 5:13 PM MST	Areal Flood Advisory	GJT	71 hr
Feb 2, 3:48 AM MST	Winter Weather Advisory	GJT	38 hr
Feb 4, 3:35 PM MST	Winter Storm Watch	GJT	12 hr
Feb 4, 3:35 PM MST	Winter Storm Warning	GJT	61 hr
Feb 5, 2:55 PM MST	Winter Weather Advisory	GJT	35 hr
Feb 12, 3:34 PM MST	Winter Storm Watch	GJT	12 hr
Feb 13, 3:14 AM MST	Winter Storm Warning	GJT	54 hr
Feb 13, 3:14 AM MST	Winter Weather Advisory	GJT	54 hr
Feb 14, 11:52 PM MST	Dense Fog Advisory	GJT	11 hr
Feb 15, 1:53 PM MST	Winter Weather Advisory	GJT	22 hr
Feb 20, 3:42 AM MST	Winter Storm Watch	GJT	11 hr
Feb 20, 2:33 PM MST	Winter Weather Advisory	GJT	60 hr
Feb 27, 2:06 PM MST	Winter Weather Advisory	GJT	38 hr
Feb 28, 4:50 AM MST	Winter Storm Warning	GJT	4 days
Feb 28, 3:21 PM MST	Winter Storm Watch	GJT	13 hr
Mar 5, 4:30 AM MST	Winter Storm Watch	GJT	11 hr
Mar 5, 3:38 PM MST	Winter Storm Warning	GJT	50 hr
Mar 5, 3:38 PM MST	Winter Weather Advisory	GJT	50 hr
Mar 7, 3:57 PM MST	Winter Storm Warning	GJT	40 hr
Mar 7, 3:57 PM MST	Winter Weather Advisory	GJT	39 hr
Mar 10, 3:15 PM MDT	Winter Storm Warning	GJT	4 days
Mar 11, 3:12 PM MDT	Winter Weather Advisory	GJT	63 hr
Mar 12, 9:19 AM MDT	Dense Fog Advisory	GJT	115 min
Mar 25, 7:14 AM MDT	Dense Fog Advisory	GJT	3 hr
Mar 28, 4:30 AM MDT	Winter Weather Advisory	GJT	50 hr
Apr 8, 2:10 PM MDT	Wind Advisory	GJT	32 hr
Apr 8, 11:47 PM MDT	Winter Storm Watch	GJT	4 hr
Apr 9, 3:52 AM MDT	Winter Storm Warning	GJT	53 hr
Apr 9, 3:52 AM MDT	Winter Weather Advisory	GJT	53 hr
Apr 9, 3:57 AM MDT	Freeze Watch	GJT	35 hr
Apr 9, 12:11 PM MDT	Wind Advisory	GJT	33 hr
Apr 10, 3:29 AM MDT	Freeze Warning	GJT	31 hr
Apr 10, 3:01 PM MDT	Freeze Watch	GJT	12 hr
Apr 11, 3:26 AM MDT	Freeze Warning	GJT	31 hr
Apr 11, 3:30 PM MDT	Freeze Watch	GJT	11 hr
Apr 12, 2:57 AM MDT	Freeze Warning	GJT	30 hr
Apr 13, 3:00 PM MDT	Freeze Warning	GJT	19 hr
Apr 26, 3:51 PM MDT	Special Weather Statement	GJT	54 min
Apr 28, 2:04 PM MDT	Wind Advisory	GJT	6 hr
Apr 28, 3:13 PM MDT	Winter Storm Watch	GJT	7 hr
Apr 28, 9:58 PM MDT	Winter Storm Warning	GJT	62 hr
Apr 30, 3:05 PM MDT	Freeze Watch	GJT	24 hr
Apr 30, 7:16 PM MDT	Special Weather Statement	GJT	44 min
May 1, 2:35 PM MDT	Freeze Warning	GJT	18 hr
May 2, 2:22 PM MDT	Freeze Warning	GJT	18 hr
May 7, 2:52 PM MDT	Winter Storm Watch	GJT	13 hr
May 8, 3:49 AM MDT	Winter Weather Advisory	GJT	35 hr
May 15, 7:08 PM MDT	Wind Advisory	GJT	27 hr
May 19, 4:06 AM MDT	Winter Storm Watch	GJT	11 hr
May 19, 3:02 PM MDT	Winter Storm Warning	GJT	47 hr
May 21, 2:48 AM MDT	Freeze Watch	GJT	12 hr
May 21, 2:22 PM MDT	Freeze Warning	GJT	16 hr
May 22, 2:55 PM MDT	Winter Weather Advisory	GJT	32 hr
May 27, 3:57 AM MDT	Winter Storm Watch	GJT	11 hr
May 27, 2:43 PM MDT	Winter Weather Advisory	GJT	33 hr
Jun 6, 3:57 AM MDT	Fire Weather Watch	GJT	11 hr
Jun 6, 2:30 PM MDT	Red Flag Warning	GJT	31 hr
Jun 18, 2:37 PM MDT	Fire Weather Watch	GJT	24 hr
Jun 18, 4:18 PM MDT	Special Weather Statement	GJT	27 min
Jun 18, 5:23 PM MDT	Special Weather Statement	GJT	37 min
Jun 18, 5:52 PM MDT	Severe Thunderstorm Warning	GJT	23 min
Jun 19, 2:51 PM MDT	Red Flag Warning	GJT	30 hr
Jun 21, 9:06 AM MDT	Areal Flood Advisory	GJT	24 hr
Jun 21, 10:41 AM MDT	Winter Weather Advisory	GJT	43 hr
Jun 21, 6:39 PM MDT	Special Weather Statement	GJT	36 min
Jun 22, 12:20 PM MDT	Special Weather Statement	GJT	25 min
Jun 22, 12:53 PM MDT	Special Weather Statement	GJT	37 min
Jun 22, 2:07 PM MDT	Special Weather Statement	GJT	23 min
Jun 26, 3:10 PM MDT	Red Flag Warning	GJT	29 hr
Jul 3, 2:22 AM MDT	Red Flag Warning	GJT	42 hr
Jul 7, 4:59 PM MDT	Special Weather Statement	GJT	31 min
Jul 8, 2:20 PM MDT	Special Weather Statement	GJT	40 min
Jul 8, 2:58 PM MDT	Special Weather Statement	GJT	47 min
Jul 8, 6:00 PM MDT	Special Weather Statement	GJT	30 min
Jul 8, 6:35 PM MDT	Special Weather Statement	GJT	25 min
Jul 13, 4:35 PM MDT	Areal Flood Advisory	GJT	96 min
Jul 13, 5:06 PM MDT	Flash Flood Warning	GJT	3 hr
Jul 13, 5:41 PM MDT	Flash Flood Warning	GJT	2 hr
Jul 14, 3:57 PM MDT	Special Weather Statement	GJT	33 min
Jul 14, 4:54 PM MDT	Special Weather Statement	GJT	36 min
Jul 15, 2:24 PM MDT	Red Flag Warning	GJT	54 hr
Jul 15, 2:24 PM MDT	Red Flag Warning	GJT	30 hr
Jul 26, 11:46 AM MDT	Special Weather Statement	GJT	44 min
Jul 26, 1:44 PM MDT	Special Weather Statement	GJT	31 min
Jul 26, 2:23 PM MDT	Areal Flood Advisory	GJT	3 hr
Jul 26, 2:45 PM MDT	Special Weather Statement	GJT	30 min
Jul 26, 3:13 PM MDT	Special Weather Statement	GJT	32 min
Jul 26, 3:20 PM MDT	Areal Flood Advisory	GJT	2 hr
Jul 26, 3:37 PM MDT	Special Weather Statement	GJT	23 min
Jul 26, 4:10 PM MDT	Special Weather Statement	GJT	35 min
Jul 26, 4:16 PM MDT	Special Weather Statement	GJT	29 min
Jul 27, 3:57 AM MDT	Flash Flood Watch	GJT	17 hr
Aug 14, 1:56 PM MDT	Fire Weather Watch	GJT	21 hr
Aug 15, 11:15 AM MDT	Fire Weather Watch	GJT	27 hr
Aug 15, 11:15 AM MDT	Red Flag Warning	GJT	33 hr
Aug 16, 2:01 PM MDT	Red Flag Warning	GJT	30 hr
Sep 8, 4:27 AM MDT	Flash Flood Watch	GJT	14 hr
Sep 8, 2:33 PM MDT	Severe Thunderstorm Warning	GJT	27 min
Sep 8, 4:32 PM MDT	Special Weather Statement	GJT	43 min
Sep 8, 5:03 PM MDT	Special Weather Statement	GJT	27 min
Sep 8, 5:32 PM MDT	Severe Thunderstorm Warning	GJT	28 min
Sep 8, 5:58 PM MDT	Severe Thunderstorm Warning	GJT	32 min
Sep 10, 6:20 PM MDT	Severe Thunderstorm Warning	GJT	25 min
Sep 10, 11:45 PM MDT	Special Weather Statement	GJT	45 min
Sep 11, 8:56 AM MDT	Special Weather Statement	GJT	49 min
Sep 11, 9:50 AM MDT	Special Weather Statement	GJT	25 min
Sep 11, 10:45 AM MDT	Special Weather Statement	GJT	60 min
Sep 11, 11:52 AM MDT	Special Weather Statement	GJT	38 min
Sep 11, 4:28 PM MDT	Special Weather Statement	GJT	32 min
Sep 11, 5:00 PM MDT	Special Weather Statement	GJT	30 min
Sep 19, 2:58 PM MDT	Red Flag Warning	GJT	29 hr
Sep 27, 3:15 PM MDT	Wind Advisory	GJT	30 hr
Sep 28, 4:22 AM MDT	Wind Advisory	GJT	41 hr
Sep 30, 3:15 AM MDT	Fire Weather Watch	GJT	11 hr
Sep 30, 2:24 PM MDT	Red Flag Warning	GJT	29 hr
Oct 1, 2:02 PM MDT	Red Flag Warning	GJT	29 hr
Oct 2, 1:55 AM MDT	Freeze Watch	GJT	12 hr
Oct 2, 2:01 PM MDT	Fire Weather Watch	GJT	25 hr
Oct 2, 2:10 PM MDT	Freeze Warning	GJT	19 hr
Oct 3, 2:32 PM MDT	Red Flag Warning	GJT	29 hr
Oct 4, 2:15 AM MDT	Freeze Watch	GJT	12 hr
Oct 4, 2:15 AM MDT	Wind Advisory	GJT	19 hr
Oct 4, 2:17 PM MDT	Freeze Warning	GJT	19 hr
Oct 5, 2:01 PM MDT	Freeze Warning	GJT	19 hr
Oct 6, 2:11 PM MDT	Freeze Warning	GJT	19 hr
Oct 7, 12:11 PM MDT	Fire Weather Watch	GJT	15 hr
Oct 8, 2:55 AM MDT	Red Flag Warning	GJT	42 hr
Oct 8, 3:52 AM MDT	Wind Advisory	GJT	41 hr
Oct 9, 3:50 AM MDT	Freeze Watch	GJT	24 hr
Oct 9, 4:13 AM MDT	Winter Weather Advisory	GJT	32 hr
Oct 10, 3:37 AM MDT	Freeze Warning	GJT	30 hr
Oct 15, 2:15 PM MDT	Fire Weather Watch	GJT	25 hr
Oct 16, 2:57 PM MDT	Red Flag Warning	GJT	28 hr
Oct 18, 2:56 PM MDT	Winter Weather Advisory	GJT	45 hr
Oct 20, 1:54 PM MDT	Winter Weather Advisory	GJT	31 hr
Oct 23, 3:45 AM MDT	Winter Weather Advisory	GJT	28 hr
Oct 26, 3:16 AM MDT	Winter Storm Watch	GJT	12 hr
Oct 26, 3:28 PM MDT	Winter Storm Warning	GJT	44 hr
Oct 26, 3:28 PM MDT	Winter Weather Advisory	GJT	44 hr
Oct 28, 1:50 PM MDT	Winter Storm Warning	GJT	43 hr
Oct 28, 1:50 PM MDT	Winter Weather Advisory	GJT	43 hr
Nov 18, 2:43 PM MST	Winter Storm Watch	GJT	12 hr
Nov 18, 2:43 PM MST	Winter Storm Warning	GJT	4 days
Nov 19, 2:39 AM MST	Winter Weather Advisory	GJT	3 days
Nov 24, 2:28 PM MST	Winter Weather Advisory	GJT	51 hr
Nov 26, 4:02 PM MST	Winter Storm Watch	GJT	24 hr
Nov 26, 4:02 PM MST	Winter Storm Warning	GJT	4 days
Nov 27, 4:00 PM MST	Winter Weather Advisory	GJT	3 days
Dec 4, 3:29 AM MST	Winter Weather Advisory	GJT	37 hr
Dec 7, 2:39 AM MST	Winter Weather Advisory	GJT	56 hr
Dec 8, 3:11 PM MST	Special Weather Statement	GJT	49 min
Dec 8, 11:03 PM MST	Dense Fog Advisory	GJT	13 hr
Dec 11, 3:02 PM MST	Winter Weather Advisory	GJT	4 days
Dec 11, 9:28 PM MST	Winter Storm Watch	GJT	41 hr
Dec 12, 4:09 AM MST	Winter Storm Warning	GJT	4 days
Dec 23, 2:58 AM MST	Winter Weather Advisory	GJT	68 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	5
Special Weather Statement	32
Flooding
Flash Flood Warning	2
Flash Flood Watch	2
Areal Flood Advisory	6
Winter
Winter Storm Warning	15
Winter Storm Watch	14
Winter Weather Advisory	35
Cold
Freeze Warning	12
Freeze Watch	8
Wind and dust
Wind Advisory	8
Fire
Red Flag Warning	14
Fire Weather Watch	8
Fog and smoke
Dense Fog Advisory	9

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record Forecast The radar archive 2018 2020

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.