Alert archive / Colorado / Mesoscale Discussions

Mesoscale Discussions in Colorado, 2020

100 mesoscale discussions in 2020. 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 mesoscale discussions reaches back to 2003.

Mesoscale Discussions by county

Each county as a circle sized by its count in 2020. Tap one for its archive.

Mesoscale Discussions
100
Busiest month
July29 mesoscale discussions
Busiest day
May 20, 20203 mesoscale discussions

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.

IssuedProductOfficeCountiesLasted
Mar 19, 4:45 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 11 more3 hr
Apr 21, 1:17 PM MDTMesoscale DiscussionSPCLas Animas58 min
May 1, 12:47 PM MDTMesoscale DiscussionSPCBoulder, Gilpin, Grand, Jackson, Larimer, Moffat and 2 more88 min
May 1, 5:19 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Logan, Morgan, Phillips, Sedgwick and 2 more116 min
May 2, 11:53 AM MDTMesoscale DiscussionSPCMoffat, Rio Blanco2 hr
May 2, 2:44 PM MDTMesoscale DiscussionSPCBoulder, Broomfield, Denver, Douglas, Gilpin, Jefferson and 1 more2 hr
May 3, 2:44 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Denver, Elbert, Kit Carson, Lincoln and 7 more2 hr
May 3, 8:59 PM MDTMesoscale DiscussionSPCArapahoe, Elbert, Phillips, Sedgwick, Washington, Yuma2 hr
May 4, 12:39 AM MDTMesoscale DiscussionSPCKit Carson, Phillips, Washington, Yuma3 hr
May 14, 8:12 PM MDTMesoscale DiscussionSPCBaca, Bent, Crowley, Kiowa, Otero, Prowers3 hr
May 15, 2:15 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Cheyenne, Crowley, Elbert, El Paso and 9 more90 min
May 16, 5:14 PM MDTMesoscale DiscussionSPCLas Animas91 min
May 17, 3:49 PM MDTMesoscale DiscussionSPCLas Animas116 min
May 19, 4:18 PM MDTMesoscale DiscussionSPCCrowley, El Paso, Las Animas, Lincoln, Otero, Pueblo117 min
May 19, 5:01 PM MDTMesoscale DiscussionSPCLarimer, Logan, Morgan, Weld119 min
May 20, 1:07 PM MDTMesoscale DiscussionSPCLogan, Weld83 min
May 20, 2:51 PM MDTMesoscale DiscussionSPCBaca, Bent, Cheyenne, Kiowa, Kit Carson, Prowers114 min
May 20, 5:25 PM MDTMesoscale DiscussionSPCLogan, Weld95 min
May 20, 8:10 PM MDTMesoscale DiscussionSPCWeld95 min
May 21, 1:20 PM MDTMesoscale DiscussionSPCProwers85 min
May 23, 2:18 PM MDTMesoscale DiscussionSPCYuma117 min
May 23, 2:57 PM MDTMesoscale DiscussionSPCLogan, Phillips, Sedgwick, Yuma93 min
May 23, 5:27 PM MDTMesoscale DiscussionSPCLogan, Phillips, Sedgwick93 min
May 24, 1:28 PM MDTMesoscale DiscussionSPCBaca, Bent, Crowley, Kiowa, Las Animas, Otero and 2 more2 hr
May 24, 6:06 PM MDTMesoscale DiscussionSPCBaca84 min
May 29, 6:08 PM MDTMesoscale DiscussionSPCLogan97 min
May 30, 1:45 PM MDTMesoscale DiscussionSPCLarimer90 min
May 31, 12:18 PM MDTMesoscale DiscussionSPCJackson, Larimer, Moffat117 min
Jun 2, 3:58 PM MDTMesoscale DiscussionSPCPhillips, Sedgwick, Yuma92 min
Jun 2, 6:35 PM MDTMesoscale DiscussionSPCLogan, Morgan85 min
Jun 3, 1:05 PM MDTMesoscale DiscussionSPCCheyenne, Kit Carson, Lincoln, Phillips, Washington, Yuma85 min
Jun 6, 7:01 AM MDTMesoscale DiscussionSPCDelta, Dolores, Garfield, Mesa, Moffat, Montezuma and 3 more2 hr
Jun 6, 11:29 AM MDTMesoscale DiscussionSPCAdams, Alamosa, Arapahoe, Boulder, Broomfield, Clear Creek and 21 more91 min
Jun 6, 5:14 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Cheyenne, Crowley, Elbert, El Paso and 11 more2 hr
Jun 8, 8:01 PM MDTMesoscale DiscussionSPCLogan, Phillips, Sedgwick119 min
Jun 13, 12:54 PM MDTMesoscale DiscussionSPCAdams, Alamosa, Arapahoe, Archuleta, Boulder, Broomfield and 41 more2 hr
Jun 19, 12:27 PM MDTMesoscale DiscussionSPCCuster, Douglas, Fremont, Jefferson, Park, Saguache and 1 more93 min
Jun 19, 2:20 PM MDTMesoscale DiscussionSPCCrowley, Huerfano, Las Animas, Otero, Pueblo85 min
Jun 19, 4:57 PM MDTMesoscale DiscussionSPCBaca, Bent, Crowley, Kiowa, Las Animas, Otero and 1 more2 hr
Jun 22, 2:13 PM MDTMesoscale DiscussionSPCBaca, Las Animas, Otero2 hr
Jun 26, 12:07 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Baca, Bent, Boulder, Broomfield and 22 more113 min
Jun 26, 3:51 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Boulder, Broomfield, Crowley, Denver and 17 more84 min
Jun 26, 7:13 PM MDTMesoscale DiscussionSPCCheyenne, Kiowa, Kit Carson2 hr
Jun 27, 2:18 PM MDTMesoscale DiscussionSPCBent, Crowley, Elbert, El Paso, Las Animas, Lincoln and 2 more117 min
Jun 27, 5:01 PM MDTMesoscale DiscussionSPCCheyenne, Kiowa, Prowers119 min
Jul 2, 1:30 PM MDTMesoscale DiscussionSPCBaca, Bent, Kiowa, Prowers2 hr
Jul 2, 1:44 PM MDTMesoscale DiscussionSPCLogan, Phillips, Sedgwick, Yuma91 min
Jul 2, 4:53 PM MDTMesoscale DiscussionSPCCheyenne, Kit Carson, Phillips, Sedgwick, Yuma2 hr
Jul 3, 2:55 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Baca, Bent, Cheyenne, Crowley and 8 more2 hr
Jul 4, 1:08 PM MDTMesoscale DiscussionSPCBaca, Bent, Crowley, El Paso, Huerfano, Kiowa and 4 more2 hr
Jul 7, 4:48 PM MDTMesoscale DiscussionSPCBaca87 min
Jul 8, 2:39 PM MDTMesoscale DiscussionSPCSedgwick3 hr
Jul 9, 2:37 PM MDTMesoscale DiscussionSPCCheyenne, Elbert, Kiowa, Kit Carson, Lincoln, Washington83 min
Jul 9, 8:05 PM MDTMesoscale DiscussionSPCLogan, Sedgwick55 min
Jul 10, 2:14 PM MDTMesoscale DiscussionSPCPhillips, Sedgwick, Yuma2 hr
Jul 12, 1:16 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Bent, Crowley, Douglas, Elbert and 7 more89 min
Jul 12, 5:22 PM MDTMesoscale DiscussionSPCCheyenne, Kit Carson83 min
Jul 13, 12:39 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Boulder, Broomfield, Denver, Larimer and 2 more2 hr
Jul 13, 2:08 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Bent, Cheyenne, Crowley, Elbert and 15 more2 hr
Jul 13, 5:41 PM MDTMesoscale DiscussionSPCYuma2 hr
Jul 14, 12:53 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Baca, Bent, Boulder, Broomfield and 18 more97 min
Jul 14, 5:22 PM MDTMesoscale DiscussionSPCArapahoe, Baca, Bent, Crowley, Elbert, El Paso and 6 more113 min
Jul 15, 1:40 PM MDTMesoscale DiscussionSPCBaca, Bent, Crowley, Douglas, Elbert, El Paso and 6 more95 min
Jul 15, 5:14 PM MDTMesoscale DiscussionSPCBaca, Bent, Cheyenne, Crowley, Elbert, El Paso and 7 more2 hr
Jul 18, 4:18 PM MDTMesoscale DiscussionSPCCheyenne, Kiowa, Prowers117 min
Jul 19, 12:36 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Broomfield, Crowley, Denver, Douglas and 9 more114 min
Jul 19, 2:50 PM MDTMesoscale DiscussionSPCLogan, Phillips, Sedgwick, Yuma115 min
Jul 19, 6:48 PM MDTMesoscale DiscussionSPCPhillips, Sedgwick, Yuma117 min
Jul 20, 2:51 PM MDTMesoscale DiscussionSPCPhillips, Sedgwick114 min
Jul 21, 1:12 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Bent, Broomfield, Cheyenne, Crowley and 16 more93 min
Jul 21, 5:22 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Broomfield, Crowley, Denver, Elbert and 7 more113 min
Jul 21, 7:15 PM MDTMesoscale DiscussionSPCCrowley, Logan, Morgan, Otero, Washington, Weld90 min
Jul 25, 5:19 PM MDTMesoscale DiscussionSPCKit Carson, Logan, Phillips, Sedgwick, Yuma86 min
Jul 29, 1:28 PM MDTMesoscale DiscussionSPCBaca, Cheyenne, Kiowa, Kit Carson, Prowers92 min
Aug 2, 1:28 PM MDTMesoscale DiscussionSPCAdams, Alamosa, Arapahoe, Boulder, Broomfield, Clear Creek and 14 more2 hr
Aug 2, 6:48 PM MDTMesoscale DiscussionSPCBaca, Bent, Crowley, Kiowa, Otero, Prowers117 min
Aug 3, 2:12 PM MDTMesoscale DiscussionSPCAdams, Alamosa, Arapahoe, Boulder, Broomfield, Chaffee and 25 more93 min
Aug 4, 12:52 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Baca, Bent, Boulder, Broomfield and 24 more113 min
Aug 4, 4:16 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Baca, Bent, Broomfield, Cheyenne and 18 more119 min
Aug 4, 8:30 PM MDTMesoscale DiscussionSPCBaca, Bent, Cheyenne, Crowley, Kiowa, Las Animas and 3 more30 min
Aug 5, 12:27 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Boulder, Broomfield, Cheyenne, Clear Creek and 23 more2 hr
Aug 5, 5:21 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Broomfield, Cheyenne, Crowley, Denver and 9 more84 min
Aug 5, 6:12 PM MDTMesoscale DiscussionSPCYuma93 min
Aug 6, 12:45 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Bent, Boulder, Broomfield, Cheyenne and 28 more2 hr
Aug 6, 5:13 PM MDTMesoscale DiscussionSPCAdams, Cheyenne, Elbert, Kit Carson, Lincoln, Logan and 6 more2 hr
Aug 11, 1:17 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Elbert, Kit Carson, Logan, Morgan and 5 more118 min
Aug 11, 6:21 PM MDTMesoscale DiscussionSPCBaca84 min
Aug 12, 4:28 PM MDTMesoscale DiscussionSPCLogan, Phillips, Sedgwick92 min
Aug 15, 1:42 PM MDTMesoscale DiscussionSPCLogan, Washington3 hr
Aug 15, 2:17 PM MDTMesoscale DiscussionSPCCrowley, Las Animas, Otero, Pueblo118 min
Aug 16, 12:56 PM MDTMesoscale DiscussionSPCCheyenne, Kiowa, Kit Carson, Lincoln, Phillips, Sedgwick and 2 more2 hr
Aug 16, 5:47 PM MDTMesoscale DiscussionSPCBent, Cheyenne, Crowley, Kiowa, Kit Carson, Lincoln and 3 more88 min
Aug 17, 4:15 PM MDTMesoscale DiscussionSPCLogan, Sedgwick2 hr
Aug 20, 5:07 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Bent, Crowley, Douglas, Elbert and 6 more113 min
Aug 28, 8:40 PM MDTMesoscale DiscussionSPCBent, Kiowa, Prowers2 hr
Aug 29, 12:15 PM MDTMesoscale DiscussionSPCAdams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 10 more90 min
Aug 29, 1:09 PM MDTMesoscale DiscussionSPCAlamosa, Baca, Bent, Costilla, Crowley, Custer and 6 more2 hr
Sep 8, 8:21 AM MDTMesoscale DiscussionSPCBoulder, Grand, Jackson, Larimer, Routt, Summit4 hr
Sep 8, 2:48 PM MDTMesoscale DiscussionSPCAlamosa, Chaffee, Conejos, Costilla, Custer, Douglas and 10 more4 hr
Oct 25, 5:17 PM MDTMesoscale DiscussionSPCChaffee, Custer, Delta, Fremont, Gunnison, Huerfano and 4 more4 hr

By county

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

24 more counties

The busiest days

Days with the most alerts issued, by UTC date.

  1. May 20, 20203mesoscale discussions
  2. May 23, 20203mesoscale discussions
  3. June 6, 20203mesoscale discussions
  4. June 19, 20203mesoscale discussions
  5. June 27, 20203mesoscale discussions
  6. July 2, 20203mesoscale discussions
  7. July 13, 20203mesoscale discussions
  8. August 5, 20203mesoscale discussions
  9. August 6, 20203mesoscale discussions
  10. August 29, 20203mesoscale discussions
  11. May 1, 20202mesoscale discussions
  12. May 2, 20202mesoscale discussions

Nearby

Alerts in force nowTornadoes on recordThe radar archive20192021

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.