Alert archive / Colorado

Weather alerts in Saguache County, Colorado

3,177 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Saguache County and its neighbors

Each county as a circle sized by its count since 1986. Tap one for its archive.

Alerts
3,177
Warnings
1,197
Watches
898
Advisories
727
Busiest year
2011214 alerts
Average year
99over 32 years on file

Over time

By year

Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.

By month of the year

Warning verification

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

From 2008 to 2025, 0% of tornado reports in Saguache County fell inside a tornado warning, and 33% of the tornado warnings had no report inside them.

Tornado warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20082150%0
2016010%
2025110%10%

Severe thunderstorm warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
20086183%20%
20095340%1100%49 min
201030100%0
201140100%10%
201210100%0
20135260%450%13 min
201450100%0
20154175%0
20162150%0
201730100%0
20185180%10%
201950100%0
20208188%0
202160100%0
202220100%0
202320100%0
202470100%0
202530100%0

Flash flood warnings by year

WarningsWith a reportFalse alarm ratioReportsInside a warningMean lead time
201110100%0
201410100%20%
201640100%0
201750100%0
2018110%0
20207186%0
202122291%3100%72 min
20229278%10%
202310100%0
202420100%0
202560100%10%

Years from 2008, the first full year of storm-based warnings. The year still running is on its own page.

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.

By product

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

The latest warnings

The most recent on file, newest first.

IssuedProductOfficeLasted
Aug 5, 12:39 PM MDTRed Flag WarningPUB30 hr
Jul 8, 3:46 PM MDTDust Storm WarningPUB59 min
Jul 2, 12:40 AM MDTRed Flag WarningPUB47 hr
Jul 1, 12:40 AM MDTRed Flag WarningPUB47 hr
Jun 30, 12:54 AM MDTRed Flag WarningPUB45 hr
Jun 29, 8:36 AM MDTRed Flag WarningPUB36 hr
Jun 28, 12:50 PM MDTRed Flag WarningPUB33 hr
Jun 27, 12:45 PM MDTRed Flag WarningPUB32 hr
Jun 26, 10:00 AM MDTRed Flag WarningPUB35 hr
Jun 23, 2:04 PM MDTRed Flag WarningPUB29 hr
Jun 22, 1:09 PM MDTRed Flag WarningPUB32 hr
Jun 21, 12:46 AM MDTRed Flag WarningPUB43 hr

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive

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.