Alert archive / Colorado / Larimer County / Flash Flood Warnings

Flash Flood Warnings in Larimer County, Colorado, 2021

36 flash flood warnings in 2021. An alert counts here when it covered this county. The archive of flash flood warnings reaches back to 1986.

Larimer County and its neighbors

Each county as a circle sized by its count in 2021. Tap one for its archive.

Flash Flood Warnings
36
Busiest month
July23 flash flood warnings
Busiest day
July 30, 20217 flash flood warnings

Over time

By month

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
May 2, 4:07 PM MDTFlash Flood WarningBOU3 hr
Jun 5, 12:28 PM MDTFlash Flood WarningBOU98 min
Jun 25, 2:04 PM MDTFlash Flood WarningBOU116 min
Jul 1, 11:49 AM MDTFlash Flood WarningBOU116 min
Jul 1, 3:09 PM MDTFlash Flood WarningBOU114 min
Jul 4, 3:20 PM MDTFlash Flood Warning Considerable damage threatBOU85 min
Jul 5, 1:39 PM MDTFlash Flood WarningBOU96 min
Jul 5, 2:12 PM MDTFlash Flood WarningBOU93 min
Jul 20, 4:53 PM MDTFlash Flood WarningBOU82 min
Jul 20, 5:24 PM MDTFlash Flood WarningBOU51 min
Jul 20, 6:58 PM MDTFlash Flood Warning Considerable damage threatBOU92 min
Jul 20, 7:09 PM MDTFlash Flood Warning Considerable damage threatBOU81 min
Jul 21, 1:30 PM MDTFlash Flood WarningBOU3 hr
Jul 21, 2:47 PM MDTFlash Flood WarningBOU103 min
Jul 21, 3:16 PM MDTFlash Flood WarningBOU3 hr
Jul 29, 7:50 PM MDTFlash Flood WarningBOU3 hr
Jul 30, 1:01 PM MDTFlash Flood WarningBOU7 hr
Jul 30, 1:14 PM MDTFlash Flood Warning Considerable damage threatBOU3 hr
Jul 30, 1:34 PM MDTFlash Flood Warning Considerable damage threatBOU6 hr
Jul 30, 2:07 PM MDTFlash Flood WarningBOU5 hr
Jul 30, 4:30 PM MDTFlash Flood WarningBOU4 hr
Jul 30, 5:36 PM MDTFlash Flood Warning EmergencyCatastrophic damage threatBOU3 hr
Jul 31, 11:49 AM MDTFlash Flood WarningBOU2 hr
Jul 31, 2:16 PM MDTFlash Flood WarningBOU89 min
Jul 31, 2:43 PM MDTFlash Flood WarningBOU92 min
Jul 31, 3:24 PM MDTFlash Flood Warning Considerable damage threatBOU81 min
Aug 2, 3:47 PM MDTFlash Flood WarningBOU3 hr
Aug 2, 4:11 PM MDTFlash Flood WarningBOU3 hr
Aug 2, 6:26 PM MDTFlash Flood WarningBOU116 min
Aug 6, 6:53 PM MDTFlash Flood WarningBOU2 hr
Aug 14, 6:48 PM MDTFlash Flood WarningBOU115 min
Aug 16, 3:53 PM MDTFlash Flood WarningBOU112 min
Aug 16, 4:32 PM MDTFlash Flood WarningBOU118 min
Aug 17, 4:41 PM MDTFlash Flood WarningBOU2 hr
Aug 18, 3:14 PM MDTFlash Flood WarningBOU3 hr
Aug 20, 2:15 AM MDTFlash Flood WarningBOU2 hr

The busiest days

Days with the most alerts issued, by UTC date.

  1. July 30, 20217flash flood warnings
  2. July 21, 20215flash flood warnings
  3. July 31, 20214flash flood warnings
  4. July 1, 20212flash flood warnings
  5. July 5, 20212flash flood warnings
  6. July 20, 20212flash flood warnings
  7. August 2, 20212flash flood warnings
  8. August 16, 20212flash flood warnings
  9. May 2, 20211flash flood warnings
  10. June 5, 20211flash flood warnings

Nearby

Alerts in force nowTornadoes on recordForecastThe radar archive20202022

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.