Alert archive / Colorado / Archuleta County

Weather alerts in Archuleta County, Colorado, 2019

79 weather alerts in 2019, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Archuleta County and its neighbors

Each county as a circle sized by its count in 2019. Tap one for its archive.

Alerts
79
Warnings
20
Watches
22
Advisories
27
Busiest month
February14 alerts
Busiest day
February 4, 20192 alerts

Over time

By month

Warning verification

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

Archuleta County, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings10100%10%
Flash flood warnings00

Each office's whole area, 2019

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Grand Junction, CO: severe thunderstorm warnings15287%427%12 min
NWS Grand Junction, CO: flash flood warnings7271%729%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 5, 3:41 AM MSTWinter Weather AdvisoryGJT68 hr
Jan 13, 3:29 AM MSTWinter Weather AdvisoryGJT21 hr
Jan 14, 2:15 PM MSTWinter Weather AdvisoryGJT55 hr
Jan 16, 2:38 PM MSTWinter Weather AdvisoryGJT57 hr
Jan 16, 8:59 PM MSTWinter Storm WarningGJT51 hr
Jan 20, 3:08 AM MSTWinter Weather AdvisoryGJT53 hr
Feb 1, 3:00 PM MSTWinter Storm WatchGJT13 hr
Feb 2, 3:48 AM MSTWinter Storm WarningGJT38 hr
Feb 4, 3:35 PM MSTWinter Storm WatchGJT12 hr
Feb 4, 3:35 PM MSTWinter Storm WarningGJT61 hr
Feb 12, 3:34 PM MSTWinter Storm WatchGJT12 hr
Feb 13, 3:14 AM MSTWinter Storm WarningGJT54 hr
Feb 13, 3:14 AM MSTWinter Weather AdvisoryGJT54 hr
Feb 15, 1:53 PM MSTWinter Weather AdvisoryGJT22 hr
Feb 16, 2:04 PM MSTWinter Storm WatchGJT15 hr
Feb 17, 4:43 AM MSTWinter Storm WarningGJT61 hr
Feb 19, 6:19 PM MSTWinter Storm WatchGJT9 hr
Feb 19, 6:19 PM MSTWinter Storm WarningGJT3 days
Feb 28, 4:50 AM MSTWinter Storm WarningGJT4 days
Feb 28, 3:21 PM MSTWinter Storm WatchGJT13 hr
Mar 5, 3:38 PM MSTWinter Weather AdvisoryGJT50 hr
Mar 7, 3:57 PM MSTWinter Weather AdvisoryGJT39 hr
Mar 10, 3:55 AM MDTWinter Storm WatchGJT11 hr
Mar 10, 3:15 PM MDTWinter Storm WarningGJT4 days
Mar 12, 5:03 PM MDTSpecial Weather StatementGJT42 min
Mar 19, 3:30 PM MDTWinter Storm WatchGJT12 hr
Mar 20, 3:19 AM MDTWinter Storm WarningGJT69 hr
Mar 29, 1:49 PM MDTWinter Storm WatchGJT13 hr
Mar 30, 2:51 AM MDTWinter Weather AdvisoryGJT42 hr
Apr 9, 3:52 AM MDTWinter Weather AdvisoryGJT53 hr
Apr 9, 12:11 PM MDTWind AdvisoryGJT33 hr
Apr 26, 5:14 PM MDTSpecial Weather StatementGJT16 min
Apr 28, 3:13 PM MDTWinter Storm WatchGJT7 hr
Apr 28, 9:58 PM MDTWinter Weather AdvisoryGJT62 hr
May 7, 2:52 PM MDTWinter Storm WatchGJT13 hr
May 8, 3:49 AM MDTWinter Storm WarningGJT51 hr
May 16, 6:51 PM MDTSpecial Weather StatementGJT39 min
May 16, 7:35 PM MDTSpecial Weather StatementGJT25 min
May 19, 4:06 AM MDTWinter Weather AdvisoryGJT11 hr
May 19, 3:02 PM MDTWinter Storm WarningGJT47 hr
May 21, 2:21 PM MDTWinter Weather AdvisoryGJT19 hr
May 22, 2:55 PM MDTWinter Weather AdvisoryGJT32 hr
May 27, 3:57 AM MDTWinter Storm WatchGJT11 hr
May 27, 2:43 PM MDTWinter Weather AdvisoryGJT33 hr
Jun 7, 7:51 AM MDTRiver Flood AdvisoryGJT21 days
Jun 12, 3:20 PM MDTRiver Flood WatchGJT21 hr
Jun 13, 1:53 PM MDTAreal Flood AdvisoryGJT4 days
Jun 22, 1:00 PM MDTSpecial Weather StatementGJT30 min
Jun 22, 2:46 PM MDTFreeze WarningGJT17 hr
Jun 30, 6:52 PM MDTSpecial Weather StatementABQ23 min
Jul 25, 4:33 PM MDTSpecial Weather StatementGJT27 min
Jul 26, 1:30 PM MDTSevere Thunderstorm WarningGJT30 min
Jul 27, 3:57 AM MDTFlash Flood WatchGJT17 hr
Jul 30, 5:41 PM MDTSpecial Weather StatementGJT49 min
Aug 2, 6:12 PM MDTSpecial Weather StatementGJT48 min
Aug 3, 3:09 PM MDTSpecial Weather StatementGJT51 min
Aug 10, 2:26 AM MDTFlash Flood WatchGJT22 hr
Aug 10, 2:42 PM MDTFlash Flood WatchGJT30 hr
Aug 27, 2:53 PM MDTFire Weather WatchGJT31 hr
Sep 8, 4:27 AM MDTFlash Flood WatchGJT14 hr
Oct 2, 1:55 AM MDTFreeze WatchGJT12 hr
Oct 2, 2:10 PM MDTFreeze WarningGJT19 hr
Oct 5, 2:01 PM MDTFreeze WarningGJT19 hr
Oct 6, 2:11 PM MDTFreeze WarningGJT19 hr
Oct 26, 3:28 PM MDTWinter Weather AdvisoryGJT44 hr
Nov 18, 2:43 PM MSTWinter Storm WarningGJT4 days
Nov 24, 2:28 PM MSTWinter Weather AdvisoryGJT51 hr
Nov 25, 3:26 PM MSTWinter Storm WatchGJT25 hr
Nov 26, 4:02 PM MSTWinter Storm WatchGJT24 hr
Nov 26, 4:02 PM MSTWinter Storm WarningGJT4 days
Nov 27, 4:00 PM MSTWinter Weather AdvisoryGJT3 days
Dec 4, 3:29 AM MSTWinter Weather AdvisoryGJT37 hr
Dec 7, 2:39 AM MSTWinter Weather AdvisoryGJT56 hr
Dec 11, 9:28 PM MSTWinter Storm WatchGJT41 hr
Dec 12, 4:09 AM MSTWinter Storm WarningGJT4 days
Dec 23, 2:58 AM MSTWinter Weather AdvisoryGJT68 hr
Dec 25, 2:10 PM MSTWinter Weather AdvisoryGJT13 hr
Dec 26, 2:40 AM MSTWinter Storm WarningGJT50 hr
Dec 26, 2:40 AM MSTWinter Weather AdvisoryGJT50 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 archive20182020

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.