Alert archive / Colorado / Severe Thunderstorm Watches

Severe Thunderstorm Watches in Colorado, 2009

36 severe thunderstorm watches in 2009. 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 watches reaches back to 1997.

Severe Thunderstorm Watches by county

Each county as a circle sized by its count in 2009. Tap one for its archive.

Severe Thunderstorm Watches
36
Busiest month
July17 severe thunderstorm watches
Busiest day
June 7, 20092 severe thunderstorm watches

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
Apr 16, 2:22 PM MDTSevere Thunderstorm WatchSPCBaca, Bent, Cheyenne, Crowley, Elbert, Kiowa and 7 more5 hr
Apr 30, 12:36 AM MDTSevere Thunderstorm WatchSPCYuma6 hr
Jun 4, 1:27 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Baca, Bent, Boulder, Broomfield and 22 more8 hr
Jun 7, 11:02 AM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 8 more6 hr
Jun 7, 4:31 PM MDTSevere Thunderstorm WatchSPCKit Carson, Yuma5 hr
Jun 11, 8:46 PM MDTSevere Thunderstorm WatchSPCProwers7 hr
Jun 12, 4:04 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Baca, Bent, Cheyenne, Crowley and 18 more6 hr
Jun 14, 12:03 AM MDTSevere Thunderstorm WatchSPCBaca, Prowers3 hr
Jun 17, 10:01 PM MDTSevere Thunderstorm WatchSPCLogan, Phillips, Sedgwick6 hr
Jun 23, 2:51 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 8 more6 hr
Jun 25, 1:30 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Denver, Douglas, Elbert, Lincoln and 4 more7 hr
Jun 26, 2:38 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Cheyenne, Denver, Douglas, Elbert and 9 more5 hr
Jul 1, 6:38 PM MDTSevere Thunderstorm WatchSPCLogan, Morgan, Phillips, Sedgwick, Washington, Weld6 hr
Jul 3, 1:58 PM MDTSevere Thunderstorm WatchSPCCheyenne, Kiowa, Kit Carson9 hr
Jul 3, 2:48 PM MDTSevere Thunderstorm WatchSPCLincoln, Logan, Morgan, Phillips, Sedgwick, Washington and 2 more6 hr
Jul 5, 1:44 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Crowley, Custer, Douglas, Elbert and 10 more6 hr
Jul 6, 1:18 PM MDTSevere Thunderstorm WatchSPCBaca, Bent, Crowley, Custer, El Paso, Huerfano and 5 more9 hr
Jul 6, 2:07 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 8 more6 hr
Jul 11, 3:56 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Cheyenne, Elbert, Kit Carson, Lincoln and 7 more9 hr
Jul 13, 1:45 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 8 more6 hr
Jul 18, 1:43 PM MDTSevere Thunderstorm WatchSPCBaca, Bent, Crowley, Custer, El Paso, Huerfano and 3 more7 hr
Jul 19, 1:50 PM MDTSevere Thunderstorm WatchSPCBaca, Bent, Crowley, Huerfano, Kiowa, Las Animas and 3 more7 hr
Jul 20, 2:25 PM MDTSevere Thunderstorm WatchSPCLogan, Phillips, Sedgwick6 hr
Jul 20, 6:26 PM MDTSevere Thunderstorm WatchSPCCheyenne, Kit Carson3 hr
Jul 22, 1:55 PM MDTSevere Thunderstorm WatchSPCCheyenne, Kit Carson, Lincoln, Logan, Morgan, Phillips and 4 more7 hr
Jul 23, 2:30 PM MDTSevere Thunderstorm WatchSPCCheyenne, Kit Carson, Logan, Phillips, Sedgwick, Yuma7 hr
Jul 28, 1:16 PM MDTSevere Thunderstorm WatchSPCBaca, Costilla, Custer, Huerfano, Las Animas, Pueblo8 hr
Jul 29, 12:50 PM MDTSevere Thunderstorm WatchSPCBaca, Bent, Crowley, Custer, El Paso, Fremont and 7 more9 hr
Jul 31, 4:16 PM MDTSevere Thunderstorm WatchSPCBaca, Bent, Cheyenne, Kiowa, Otero, Prowers7 hr
Aug 5, 4:15 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Baca, Bent, Cheyenne, Crowley and 17 more7 hr
Aug 8, 7:29 PM MDTSevere Thunderstorm WatchSPCLogan, Morgan, Phillips, Sedgwick, Weld7 hr
Aug 10, 1:49 AM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Cheyenne, Elbert, El Paso, Kiowa and 8 more6 hr
Aug 10, 4:43 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Bent, Broomfield, Cheyenne, Crowley and 18 more9 hr
Aug 18, 12:29 PM MDTSevere Thunderstorm WatchSPCAdams, Arapahoe, Baca, Bent, Crowley, Custer and 17 more9 hr
Aug 18, 4:00 PM MDTSevere Thunderstorm WatchSPCCheyenne, Kit Carson, Yuma7 hr
Sep 8, 1:53 PM MDTSevere Thunderstorm WatchSPCLogan, Phillips, Sedgwick8 hr

By county

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

The busiest days

Days with the most alerts issued, by UTC date.

  1. June 7, 20092severe thunderstorm watches
  2. June 12, 20092severe thunderstorm watches
  3. July 3, 20092severe thunderstorm watches
  4. July 6, 20092severe thunderstorm watches
  5. August 10, 20092severe thunderstorm watches
  6. August 18, 20092severe thunderstorm watches
  7. April 16, 20091severe thunderstorm watches
  8. April 30, 20091severe thunderstorm watches
  9. June 4, 20091severe thunderstorm watches
  10. June 14, 20091severe thunderstorm watches
  11. June 18, 20091severe thunderstorm watches
  12. June 23, 20091severe thunderstorm watches

Nearby

Alerts in force nowTornadoes on recordThe radar archive20082010

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.