Alert archive / Colorado

Weather alerts in Adams County, Colorado

4,149 weather alerts since 1986, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.

Adams County and its neighbors

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

Alerts
4,149
Warnings
1,898
Watches
586
Advisories
580
Busiest year
2023264 alerts
Average year
101over 41 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

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
Sep 19, 5:55 PM MDTSevere Thunderstorm WarningBOU29 min
Sep 19, 2:08 PM MDTSevere Thunderstorm WarningBOU52 min
Sep 19, 1:46 PM MDTSevere Thunderstorm WarningBOU29 min
Sep 18, 4:47 PM MDTSevere Thunderstorm WarningBOU28 min
Sep 7, 5:39 PM MDTSevere Thunderstorm WarningBOU51 min
Aug 26, 7:08 PM MDTFlash Flood WarningBOU3 hr
Aug 26, 6:37 PM MDTSevere Thunderstorm WarningBOU38 min
Aug 26, 6:08 PM MDTSevere Thunderstorm WarningBOU31 min
Aug 22, 3:01 PM MDTSevere Thunderstorm WarningBOU29 min
Aug 22, 2:29 PM MDTSevere Thunderstorm WarningBOU46 min
Aug 15, 2:44 PM MDTFlash Flood WarningBOU3 hr
Aug 15, 2:34 PM MDTSevere Thunderstorm WarningBOU24 min

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. Rebuilt daily.