Alert archive / Colorado / Severe Thunderstorm Warnings / 2019

Severe Thunderstorm Warnings in Colorado, September 2019

44 severe thunderstorm warnings in September 2019. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.

Severe Thunderstorm Warnings by county

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

Severe Thunderstorm Warnings
44
Busiest day
September 11, 201910 severe thunderstorm warnings

Over time

By day

Days in UTC, the clock the archive keeps.

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.

IssuedProductOfficeCountiesLasted
Aug 31, 6:10 PM MDTSevere Thunderstorm WarningBOULarimer, Weld20 min
Sep 3, 7:17 PM MDTSevere Thunderstorm WarningBOUPark13 min
Sep 5, 9:18 PM MDTSevere Thunderstorm WarningBOUWeld27 min
Sep 5, 9:41 PM MDTSevere Thunderstorm WarningBOUWeld34 min
Sep 6, 2:02 PM MDTSevere Thunderstorm WarningBOUClear Creek, Gilpin, Jefferson43 min
Sep 6, 2:44 PM MDTSevere Thunderstorm WarningBOUArapahoe, Denver, Jefferson46 min
Sep 6, 3:26 PM MDTSevere Thunderstorm WarningBOUArapahoe, Douglas, Jefferson34 min
Sep 6, 3:59 PM MDTSevere Thunderstorm WarningBOUArapahoe, Denver, Douglas46 min
Sep 6, 4:51 PM MDTSevere Thunderstorm WarningPUBEl Paso39 min
Sep 8, 2:33 PM MDTSevere Thunderstorm WarningGJTEagle, Garfield, Routt27 min
Sep 8, 3:18 PM MDTSevere Thunderstorm WarningBOUGrand, Jackson42 min
Sep 8, 4:03 PM MDTSevere Thunderstorm WarningGJTMoffat, Rio Blanco27 min
Sep 8, 5:32 PM MDTSevere Thunderstorm WarningGJTGarfield28 min
Sep 8, 5:58 PM MDTSevere Thunderstorm WarningGJTGarfield32 min
Sep 8, 6:05 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe, Weld40 min
Sep 8, 6:11 PM MDTSevere Thunderstorm WarningGJTMoffat, Rio Blanco, Routt34 min
Sep 8, 6:23 PM MDTSevere Thunderstorm WarningPUBBent, Kiowa, Otero, Prowers37 min
Sep 8, 6:34 PM MDTSevere Thunderstorm WarningBOUAdams, Arapahoe, Morgan, Washington, Weld41 min
Sep 10, 2:40 AM MDTSevere Thunderstorm WarningBOUMorgan, Weld35 min
Sep 10, 3:11 AM MDTSevere Thunderstorm WarningBOULogan34 min
Sep 10, 3:44 AM MDTSevere Thunderstorm WarningBOULogan31 min
Sep 10, 4:20 AM MDTSevere Thunderstorm WarningBOULogan25 min
Sep 10, 12:50 PM MDTSevere Thunderstorm WarningGJTMesa40 min
Sep 10, 5:40 PM MDTSevere Thunderstorm WarningBOUWeld50 min
Sep 10, 6:20 PM MDTSevere Thunderstorm WarningGJTGarfield, Mesa25 min
Sep 10, 6:24 PM MDTSevere Thunderstorm WarningBOUWeld25 min
Sep 10, 6:38 PM MDTSevere Thunderstorm WarningGJTMesa10 min
Sep 11, 4:15 PM MDTSevere Thunderstorm WarningGLDCheyenne45 min
Sep 11, 4:29 PM MDTSevere Thunderstorm WarningBOUBoulder, Larimer, Weld31 min
Sep 11, 4:58 PM MDTSevere Thunderstorm WarningBOUWeld47 min
Sep 11, 5:21 PM MDTSevere Thunderstorm WarningBOUPhillips24 min
Sep 11, 5:24 PM MDTSevere Thunderstorm WarningBOUBoulder, Weld36 min
Sep 11, 5:44 PM MDTSevere Thunderstorm WarningBOUMorgan, Weld31 min
Sep 11, 5:58 PM MDTSevere Thunderstorm WarningBOUWeld47 min
Sep 11, 6:15 PM MDTSevere Thunderstorm WarningBOULogan, Morgan, Weld45 min
Sep 11, 6:40 PM MDTSevere Thunderstorm WarningBOUMorgan, Weld50 min
Sep 11, 7:01 PM MDTSevere Thunderstorm WarningBOULogan, Phillips, Sedgwick13 min
Sep 11, 7:11 PM MDTSevere Thunderstorm WarningBOULogan, Phillips, Sedgwick38 min
Sep 11, 7:48 PM MDTSevere Thunderstorm WarningBOULogan, Phillips, Sedgwick27 min
Sep 13, 4:47 PM MDTSevere Thunderstorm WarningPUBLas Animas43 min
Sep 13, 6:24 PM MDTSevere Thunderstorm WarningPUBLas Animas51 min
Sep 19, 3:22 PM MDTSevere Thunderstorm WarningPUBKiowa, Prowers23 min
Sep 19, 4:20 PM MDTSevere Thunderstorm WarningPUBProwers25 min
Sep 19, 4:45 PM MDTSevere Thunderstorm WarningPUBProwers17 min

By county

Every county with at least one alert. A county page lists each alert that covered it.

Nearby

Alerts in force nowTornadoes on recordThe 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.