Alert archive / Colorado / Gunnison County

Weather alerts in Gunnison County, Colorado, 2017

97 weather alerts in 2017, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Gunnison County and its neighbors

Each county as a circle sized by its count in 2017. Tap one for its archive.

Alerts: 97
Warnings: 26
Watches: 26
Advisories: 44
Busiest month: April19 alerts
Busiest day: January 3, 20174 alerts

Over time

By month

Warning verification

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

Gunnison County, 2017

	Warnings	With a report	False alarm ratio
Tornado warnings	0
Severe thunderstorm warnings	1	0	100%
Flash flood warnings	0

Each office's whole area, 2017

	Warnings	With a report	False alarm ratio	Reports	Inside a warning	Mean lead time
NWS Grand Junction, CO: severe thunderstorm warnings	14	2	86%	25	8%	7 min
NWS Grand Junction, CO: flash flood warnings	13	1	92%	24	4%	52 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 2, 11:24 PM MST	Winter Storm Watch	GJT	16 hr
Jan 2, 11:24 PM MST	Winter Storm Warning	GJT	3 days
Jan 3, 3:42 PM MST	Winter Storm Watch	GJT	13 hr
Jan 3, 3:42 PM MST	Winter Weather Advisory	GJT	58 hr
Jan 7, 4:11 AM MST	Winter Storm Watch	GJT	12 hr
Jan 7, 4:09 PM MST	Winter Storm Warning	GJT	65 hr
Jan 10, 3:21 PM MST	Winter Storm Warning	GJT	42 hr
Jan 10, 3:21 PM MST	Winter Weather Advisory	GJT	42 hr
Jan 12, 11:24 AM MST	Winter Weather Advisory	GJT	54 hr
Jan 14, 7:31 PM MST	Dense Fog Advisory	GJT	16 hr
Jan 18, 3:41 PM MST	Winter Storm Warning	GJT	4 days
Jan 18, 3:41 PM MST	Winter Weather Advisory	GJT	4 days
Jan 21, 7:48 PM MST	Winter Storm Watch	GJT	16 hr
Jan 22, 4:30 AM MST	Winter Storm Warning	GJT	72 hr
Jan 22, 4:30 AM MST	Winter Weather Advisory	GJT	3 days
Feb 4, 3:45 PM MST	Winter Storm Watch	GJT	23 hr
Feb 5, 3:03 PM MST	Winter Storm Warning	GJT	69 hr
Feb 5, 3:03 PM MST	Winter Weather Advisory	GJT	67 hr
Feb 10, 3:03 AM MST	Winter Weather Advisory	GJT	4 days
Feb 13, 7:50 AM MST	Dense Fog Advisory	GJT	5 hr
Feb 17, 9:02 PM MST	Winter Weather Advisory	GJT	53 hr
Feb 21, 2:48 PM MST	Winter Weather Advisory	GJT	3 days
Feb 25, 8:55 PM MST	Winter Storm Watch	GJT	19 hr
Feb 26, 3:26 PM MST	Winter Storm Warning	GJT	53 hr
Feb 26, 3:26 PM MST	Winter Weather Advisory	GJT	53 hr
Mar 4, 3:19 AM MST	Wind Advisory	GJT	50 hr
Mar 5, 3:02 AM MST	Winter Weather Advisory	GJT	36 hr
Mar 5, 1:39 PM MST	Wind Advisory	GJT	16 hr
Mar 6, 12:09 PM MST	Winter Weather Advisory	GJT	3 hr
Mar 22, 3:54 PM MDT	Winter Weather Advisory	GJT	44 hr
Mar 25, 3:30 PM MDT	Winter Weather Advisory	GJT	18 hr
Mar 26, 10:54 PM MDT	Winter Weather Advisory	GJT	52 hr
Mar 30, 3:29 AM MDT	Winter Storm Warning	GJT	49 hr
Mar 30, 3:29 AM MDT	Winter Weather Advisory	GJT	49 hr
Apr 2, 4:31 AM MDT	Winter Storm Watch	GJT	11 hr
Apr 2, 3:45 PM MDT	Winter Storm Warning	GJT	45 hr
Apr 2, 3:45 PM MDT	Winter Weather Advisory	GJT	45 hr
Apr 3, 3:46 PM MDT	Freeze Watch	GJT	13 hr
Apr 4, 4:30 AM MDT	Freeze Warning	GJT	29 hr
Apr 7, 1:37 PM MDT	Wind Advisory	GJT	33 hr
Apr 8, 2:18 PM MDT	Freeze Watch	GJT	13 hr
Apr 9, 2:51 AM MDT	Freeze Warning	GJT	30 hr
Apr 9, 2:51 AM MDT	Wind Advisory	GJT	12 hr
Apr 24, 3:31 AM MDT	Winter Weather Advisory	GJT	41 hr
Apr 25, 3:30 PM MDT	Winter Storm Watch	GJT	13 hr
Apr 26, 4:30 AM MDT	Winter Weather Advisory	GJT	37 hr
Apr 27, 4:23 AM MDT	Freeze Watch	GJT	8 hr
Apr 27, 12:12 PM MDT	Freeze Warning	GJT	20 hr
Apr 28, 4:30 AM MDT	Freeze Watch	GJT	10 hr
Apr 28, 2:50 PM MDT	Freeze Warning	GJT	18 hr
Apr 28, 11:49 PM MDT	Winter Weather Advisory	GJT	11 hr
Apr 29, 2:44 AM MDT	Freeze Watch	GJT	16 hr
Apr 29, 2:28 PM MDT	Freeze Warning	GJT	19 hr
May 8, 5:20 PM MDT	Special Weather Statement	PUB	40 min
May 16, 3:38 AM MDT	Winter Weather Advisory	GJT	3 days
May 16, 3:55 AM MDT	Freeze Watch	GJT	35 hr
May 18, 4:41 AM MDT	Freeze Watch	GJT	10 hr
May 18, 9:22 AM MDT	Winter Storm Warning	GJT	24 hr
May 18, 2:25 PM MDT	Freeze Warning	GJT	19 hr
May 19, 4:17 AM MDT	Freeze Watch	GJT	9 hr
May 25, 10:12 PM MDT	Severe Thunderstorm Warning	GJT	33 min
Jun 7, 8:22 AM MDT	River Flood Advisory	GJT	58 hr
Jun 8, 3:01 PM MDT	Fire Weather Watch	GJT	22 hr
Jun 8, 3:01 PM MDT	Red Flag Warning	GJT	4 days
Jun 10, 3:04 PM MDT	Fire Weather Watch	GJT	14 hr
Jun 11, 2:52 PM MDT	Wind Advisory	GJT	28 hr
Jun 26, 2:52 PM MDT	Fire Weather Watch	GJT	24 hr
Jun 26, 2:52 PM MDT	Red Flag Warning	GJT	29 hr
Jun 27, 3:47 PM MDT	Red Flag Warning	GJT	28 hr
Jun 28, 2:58 PM MDT	Red Flag Warning	GJT	29 hr
Jul 18, 2:32 PM MDT	Flash Flood Watch	GJT	33 hr
Jul 20, 4:05 AM MDT	Flash Flood Watch	GJT	20 hr
Jul 21, 2:52 AM MDT	Flash Flood Watch	GJT	21 hr
Jul 24, 3:51 AM MDT	Flash Flood Watch	GJT	44 hr
Sep 23, 12:14 PM MDT	Winter Weather Advisory	GJT	9 hr
Sep 27, 3:30 AM MDT	Winter Weather Advisory	GJT	30 hr
Sep 28, 7:08 AM MDT	Dense Fog Advisory	GJT	3 hr
Sep 30, 9:39 PM MDT	Winter Weather Advisory	GJT	49 hr
Oct 2, 1:34 PM MDT	Freeze Warning	GJT	19 hr
Oct 3, 12:25 AM MDT	Dense Fog Advisory	GJT	8 hr
Oct 7, 2:00 PM MDT	Winter Weather Advisory	GJT	49 hr
Oct 8, 3:23 PM MDT	Freeze Watch	GJT	23 hr
Oct 9, 4:04 AM MDT	Freeze Warning	GJT	28 hr
Oct 13, 3:12 AM MDT	Red Flag Warning	GJT	17 hr
Oct 29, 1:58 PM MDT	Winter Weather Advisory	GJT	46 hr
Nov 3, 3:19 PM MDT	Winter Weather Advisory	GJT	49 hr
Nov 6, 3:38 AM MST	Winter Weather Advisory	GJT	43 hr
Nov 15, 2:44 PM MST	Winter Storm Watch	GJT	13 hr
Nov 16, 3:48 AM MST	Winter Storm Warning	GJT	48 hr
Nov 16, 3:48 AM MST	Winter Weather Advisory	GJT	48 hr
Nov 17, 4:11 AM MST	Wind Advisory	GJT	17 hr
Dec 2, 8:39 PM MST	Wind Advisory	GJT	26 hr
Dec 19, 4:10 PM MST	Winter Weather Advisory	GJT	56 hr
Dec 22, 3:34 AM MST	Winter Weather Advisory	GJT	44 hr
Dec 23, 1:53 PM MST	Winter Storm Watch	GJT	15 hr
Dec 24, 4:28 AM MST	Winter Storm Warning	GJT	38 hr
Dec 24, 1:26 PM MST	Winter Weather Advisory	GJT	20 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	1
Special Weather Statement	1
Flooding
Flash Flood Watch	4
River Flood Advisory	1
Winter
Winter Storm Warning	12
Winter Storm Watch	10
Winter Weather Advisory	32
Cold
Freeze Warning	8
Freeze Watch	9
Wind and dust
Wind Advisory	7
Fire
Red Flag Warning	5
Fire Weather Watch	3
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 2016 2018

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.