Alert archive / Colorado / Pitkin County

Weather alerts in Pitkin County, Colorado, 2025

94 weather alerts in 2025, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Pitkin County and its neighbors

Each county as a circle sized by its count in 2025. Tap one for its archive.

Alerts
94
Warnings
27
Watches
26
Advisories
35
Busiest month
June16 alerts
Busiest day
April 16, 20253 alerts

Over time

By month

Warning verification

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

Pitkin County, 2025

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
Tornado warnings00
Severe thunderstorm warnings10100%10%
Flash flood warnings020%

Each office's whole area, 2025

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
NWS Grand Junction, CO: tornado warnings5180%333%19 min
NWS Grand Junction, CO: severe thunderstorm warnings721283%3549%16 min
NWS Grand Junction, CO: flash flood warnings441077%3148%73 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 3, 12:21 PM MSTWinter Weather AdvisoryGJT51 hr
Jan 9, 2:11 PM MSTWinter Weather AdvisoryGJT57 hr
Jan 16, 1:56 PM MSTWinter Weather AdvisoryGJT51 hr
Jan 16, 3:00 PM MSTAreal Flood AdvisoryGJT6 hr
Jan 18, 1:36 AM MSTExtreme Cold WatchGJT49 hr
Jan 20, 2:06 AM MSTCold Weather AdvisoryGJT31 hr
Jan 20, 2:06 AM MSTExtreme Cold WarningGJT33 hr
Jan 22, 9:28 AM MSTFlash Flood WatchGJT57 hr
Jan 25, 2:48 PM MSTAreal Flood AdvisoryGJT6 hr
Feb 6, 2:01 PM MSTWind AdvisoryGJT28 hr
Feb 6, 2:17 PM MSTWinter Weather AdvisoryGJT41 hr
Feb 11, 2:07 AM MSTWinter Weather AdvisoryGJT33 hr
Feb 12, 2:48 AM MSTWinter Storm WatchGJT24 hr
Feb 13, 2:52 AM MSTWinter Storm WarningGJT63 hr
Feb 13, 2:52 AM MSTWinter Weather AdvisoryGJT48 hr
Feb 15, 12:43 PM MSTWinter Storm WatchGJT13 hr
Feb 16, 2:11 AM MSTWinter Weather AdvisoryGJT55 hr
Mar 2, 1:57 AM MSTWinter Weather AdvisoryGJT63 hr
Mar 5, 1:48 AM MSTWinter Storm WatchGJT12 hr
Mar 5, 1:54 PM MSTWinter Storm WarningGJT49 hr
Mar 12, 2:39 AM MDTWinter Weather AdvisoryGJT63 hr
Mar 17, 3:12 AM MDTWinter Weather AdvisoryGJT51 hr
Mar 20, 3:03 PM MDTWinter Weather AdvisoryGJT57 hr
Mar 30, 3:03 AM MDTWind AdvisoryGJT50 hr
Mar 31, 3:37 AM MDTWinter Weather AdvisoryGJT49 hr
Apr 11, 2:18 PM MDTRed Flag WarningGJT30 hr
Apr 16, 2:01 PM MDTWind AdvisoryGJT30 hr
Apr 16, 2:07 PM MDTRed Flag WarningGJT30 hr
Apr 16, 2:44 PM MDTWinter Weather AdvisoryGJT3 days
Apr 23, 1:47 PM MDTFire Weather WatchGJT12 hr
Apr 24, 2:04 AM MDTFire Weather WatchGJT25 hr
Apr 24, 2:04 AM MDTRed Flag WarningGJT42 hr
Apr 24, 2:44 PM MDTFire Weather WatchGJT35 hr
Apr 25, 2:52 AM MDTRed Flag WarningGJT41 hr
Apr 26, 2:05 AM MDTRed Flag WarningGJT42 hr
May 12, 7:32 AM MDTWind AdvisoryGJT37 hr
May 17, 2:19 PM MDTWinter Weather AdvisoryGJT40 hr
Jun 11, 4:17 PM MDTSpecial Weather StatementGJT28 min
Jun 15, 2:15 AM MDTFire Weather WatchGJT11 hr
Jun 15, 1:44 PM MDTRed Flag WarningGJT30 hr
Jun 18, 2:26 PM MDTFire Weather WatchGJT11 hr
Jun 18, 2:26 PM MDTFire Weather WatchGJT23 hr
Jun 19, 1:36 AM MDTRed Flag WarningGJT45 hr
Jun 19, 1:34 PM MDTWind AdvisoryGJT32 hr
Jun 19, 1:40 PM MDTRed Flag WarningGJT56 hr
Jun 20, 1:41 AM MDTFire Weather WatchGJT24 hr
Jun 20, 1:29 PM MDTWind AdvisoryGJT33 hr
Jun 21, 1:24 AM MDTRed Flag WarningGJT44 hr
Jun 21, 2:40 PM MDTWind AdvisoryGJT27 hr
Jun 21, 2:51 PM MDTFire Weather WatchGJT23 hr
Jun 22, 2:03 PM MDTRed Flag WarningGJT30 hr
Jun 22, 2:48 PM MDTFire Weather WatchGJT11 hr
Jun 23, 1:28 AM MDTRed Flag WarningGJT43 hr
Jul 8, 1:37 PM MDTFire Weather WatchGJT13 hr
Jul 9, 2:11 AM MDTRed Flag WarningGJT42 hr
Jul 25, 2:05 AM MDTFire Weather WatchGJT11 hr
Jul 25, 1:04 PM MDTRed Flag WarningGJT31 hr
Jul 26, 2:27 AM MDTRed Flag WarningGJT42 hr
Aug 3, 1:18 PM MDTFire Weather WatchGJT13 hr
Aug 3, 1:18 PM MDTRed Flag WarningGJT32 hr
Aug 4, 1:48 AM MDTRed Flag WarningGJT42 hr
Aug 5, 2:15 AM MDTFire Weather WatchGJT12 hr
Aug 5, 2:25 PM MDTRed Flag WarningGJT54 hr
Aug 5, 2:25 PM MDTRed Flag WarningGJT3 days
Aug 7, 1:21 PM MDTRed Flag WarningGJT55 hr
Aug 12, 2:12 PM MDTFire Weather WatchGJT23 hr
Aug 12, 2:12 PM MDTFire Weather WatchGJT48 hr
Aug 12, 2:12 PM MDTRed Flag WarningGJT30 hr
Aug 13, 1:05 PM MDTRed Flag WarningGJT31 hr
Aug 25, 2:42 PM MDTFlood WatchGJT35 hr
Sep 10, 12:50 PM MDTFlood WatchGJT59 hr
Sep 11, 12:45 PM MDTSevere Thunderstorm WarningGJT30 min
Sep 11, 2:48 PM MDTSpecial Weather StatementGJT27 min
Sep 13, 3:25 AM MDTFlood WatchGJT21 hr
Sep 13, 12:04 PM MDTMesoscale DiscussionSPC116 min
Sep 16, 6:09 PM MDTAreal Flood AdvisoryGJT111 min
Sep 16, 6:35 PM MDTSpecial Weather StatementGJT25 min
Oct 3, 7:02 PM MDTSpecial Weather StatementGJT13 min
Oct 4, 12:09 PM MDTSpecial Weather StatementGJT36 min
Oct 8, 1:27 PM MDTFlood WatchGJT4 days
Oct 12, 6:17 AM MDTAreal Flood AdvisoryGJT28 min
Oct 12, 6:22 AM MDTAreal Flood AdvisoryGJT3 hr
Oct 12, 6:47 AM MDTAreal Flood AdvisoryGJT3 hr
Oct 15, 2:30 PM MDTFreeze WatchGJT12 hr
Oct 16, 2:32 AM MDTFreeze WarningGJT30 hr
Nov 28, 2:06 AM MSTWinter Weather AdvisoryGJT32 hr
Nov 29, 12:23 PM MSTWinter Weather AdvisoryGJT42 hr
Dec 2, 2:26 AM MSTWinter Weather AdvisoryGJT51 hr
Dec 4, 2:00 AM MSTWinter Storm WatchGJT13 hr
Dec 4, 2:39 PM MSTWinter Storm WarningGJT62 hr
Dec 4, 2:39 PM MSTWinter Weather AdvisoryGJT56 hr
Dec 17, 3:02 AM MSTWind AdvisoryGJT23 hr
Dec 19, 1:54 AM MSTWinter Weather AdvisoryGJT43 hr
Dec 26, 2:04 AM MSTWinter Weather AdvisoryGJT56 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 archive20242026

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.