Alert archive / Colorado / Ouray County

Weather alerts in Ouray County, Colorado, 2020

85 weather alerts in 2020, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Ouray County and its neighbors

Each county as a circle sized by its count in 2020. Tap one for its archive.

Alerts
85
Warnings
36
Watches
27
Advisories
16
Busiest month
May22 alerts
Busiest day
June 13, 20204 alerts

Over time

By month

Warning verification

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

Ouray County, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings10100%0
Flash flood warnings010%

Each office's whole area, 2020

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Grand Junction, CO: severe thunderstorm warnings452251%9635%20 min
NWS Grand Junction, CO: flash flood warnings3233%650%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.

IssuedProductOfficeLasted
Jan 10, 2:20 PM MSTWinter Weather AdvisoryGJT3 days
Jan 16, 2:58 PM MSTWinter Weather AdvisoryGJT29 hr
Feb 1, 4:02 AM MSTWinter Storm WatchGJT23 hr
Feb 2, 2:47 AM MSTWinter Weather AdvisoryGJT63 hr
Feb 5, 2:19 AM MSTWinter Storm WarningGJT3 days
Feb 5, 2:19 AM MSTWinter Weather AdvisoryGJT63 hr
Mar 17, 2:29 PM MDTWinter Weather AdvisoryGJT64 hr
Apr 14, 2:43 PM MDTWinter Weather AdvisoryGJT57 hr
Apr 29, 2:12 AM MDTFire Weather WatchGJT25 hr
Apr 30, 2:54 AM MDTRed Flag WarningGJT17 hr
Apr 30, 2:00 PM MDTRed Flag WarningGJT31 hr
May 1, 2:13 PM MDTFire Weather WatchGJT13 hr
May 2, 3:39 AM MDTRed Flag WarningGJT17 hr
May 2, 1:45 PM MDTRed Flag WarningGJT31 hr
May 4, 2:36 PM MDTFire Weather WatchGJT11 hr
May 5, 1:59 AM MDTFire Weather WatchGJT37 hr
May 5, 1:59 AM MDTRed Flag WarningGJT43 hr
May 6, 2:44 PM MDTRed Flag WarningGJT30 hr
May 11, 4:00 AM MDTFire Weather WatchGJT7 hr
May 11, 11:05 AM MDTRed Flag WarningGJT34 hr
May 12, 3:51 AM MDTFire Weather WatchGJT10 hr
May 12, 2:04 PM MDTRed Flag WarningGJT31 hr
May 16, 3:49 AM MDTFire Weather WatchGJT24 hr
May 16, 2:19 PM MDTFire Weather WatchGJT25 hr
May 17, 3:34 AM MDTRed Flag WarningGJT44 hr
May 17, 2:50 PM MDTRed Flag WarningGJT57 hr
May 19, 2:45 AM MDTFire Weather WatchGJT12 hr
May 19, 2:15 PM MDTRed Flag WarningGJT30 hr
May 21, 2:08 AM MDTFire Weather WatchGJT12 hr
May 21, 2:03 PM MDTRed Flag WarningGJT31 hr
May 22, 3:11 AM MDTFire Weather WatchGJT11 hr
May 22, 2:22 PM MDTRed Flag WarningGJT31 hr
May 30, 1:47 PM MDTSpecial Weather StatementGJT28 min
Jun 5, 3:42 AM MDTFlash Flood WatchGJT36 hr
Jun 6, 9:48 AM MDTSevere Thunderstorm WatchSPC6 hr
Jun 6, 11:47 AM MDTSpecial Weather StatementGJT43 min
Jun 6, 2:36 PM MDTRed Flag WarningGJT31 hr
Jun 8, 2:34 PM MDTWinter Weather AdvisoryGJT18 hr
Jun 11, 2:39 PM MDTFire Weather WatchGJT37 hr
Jun 13, 3:46 AM MDTFire Weather WatchGJT41 hr
Jun 13, 3:46 AM MDTRed Flag WarningGJT40 hr
Jun 13, 12:54 PM MDTMesoscale DiscussionSPC2 hr
Jun 13, 2:40 PM MDTFire Weather WatchGJT48 hr
Jun 14, 2:27 PM MDTRed Flag WarningGJT31 hr
Jun 14, 2:27 PM MDTRed Flag WarningGJT55 hr
Jun 16, 3:02 AM MDTRed Flag WarningGJT41 hr
Jun 26, 1:55 PM MDTRed Flag WarningGJT55 hr
Jun 27, 2:22 PM MDTFire Weather WatchGJT24 hr
Jun 27, 2:22 PM MDTRed Flag WarningGJT55 hr
Jun 27, 2:22 PM MDTWind AdvisoryGJT51 hr
Jun 29, 2:14 PM MDTFire Weather WatchGJT7 hr
Jul 4, 2:26 PM MDTFire Weather WatchGJT23 hr
Jul 5, 1:52 PM MDTFire Weather WatchGJT25 hr
Jul 5, 1:52 PM MDTRed Flag WarningGJT55 hr
Jul 6, 2:23 PM MDTRed Flag WarningGJT55 hr
Jul 11, 3:19 AM MDTFire Weather WatchGJT11 hr
Jul 11, 2:12 PM MDTRed Flag WarningGJT55 hr
Jul 12, 2:08 AM MDTFire Weather WatchGJT12 hr
Jul 12, 1:48 PM MDTRed Flag WarningGJT54 hr
Jul 25, 5:54 AM MDTAreal Flood AdvisoryGJT3 hr
Jul 28, 2:12 PM MDTSevere Thunderstorm WarningGJT33 min
Jul 28, 2:48 PM MDTSpecial Weather StatementGJT42 min
Jul 29, 5:59 PM MDTSpecial Weather StatementGJT46 min
Aug 4, 2:31 PM MDTRed Flag WarningGJT53 hr
Aug 6, 3:10 AM MDTRed Flag WarningGJT41 hr
Aug 10, 2:40 PM MDTRed Flag WarningGJT29 hr
Aug 11, 2:05 PM MDTRed Flag WarningGJT30 hr
Aug 19, 12:23 PM MDTFire Weather WatchGJT15 hr
Aug 20, 3:15 AM MDTRed Flag WarningGJT18 hr
Sep 6, 9:38 PM MDTWinter Storm WatchGJT6 hr
Sep 7, 3:36 AM MDTWinter Storm WarningGJT3 days
Sep 8, 12:53 PM MDTSpecial Weather StatementGJT52 min
Oct 22, 1:40 AM MDTRed Flag WarningGJT16 hr
Oct 23, 3:12 AM MDTRed Flag WarningGJT16 hr
Oct 23, 1:36 PM MDTWinter Storm WatchGJT26 hr
Oct 24, 3:31 PM MDTWinter Storm WarningGJT50 hr
Oct 24, 8:45 PM MDTWinter Weather AdvisoryGJT45 hr
Nov 5, 1:50 PM MSTWinter Storm WatchGJT25 hr
Nov 6, 3:11 PM MSTWinter Storm WarningGJT3 days
Nov 8, 3:23 AM MSTWinter Weather AdvisoryGJT44 hr
Nov 22, 3:15 AM MSTWinter Weather AdvisoryGJT56 hr
Dec 9, 2:14 PM MSTWinter Weather AdvisoryGJT55 hr
Dec 11, 3:20 AM MSTWinter Weather AdvisoryGJT48 hr
Dec 17, 2:36 AM MSTWinter Weather AdvisoryGJT33 hr
Dec 27, 2:41 PM MSTWinter Weather AdvisoryGJT48 hr

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20192021

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.