Alert archive / Colorado / Tornado Watches

Tornado Watches in Colorado, 2009

11 tornado 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 tornado watches reaches back to 1997.

Tornado Watches by county

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

Tornado Watches
11
Busiest month
June8 tornado watches
Busiest day
June 13, 20092 tornado 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 29, 2:47 PM MDTTornado WatchSPCBaca, Kiowa, Prowers7 hr
Jun 5, 2:48 PM MDTTornado WatchSPCKit Carson, Logan, Morgan, Phillips, Sedgwick, Washington and 2 more7 hr
Jun 11, 2:00 PM MDTTornado WatchSPCAdams, Arapahoe, Baca, Bent, Crowley, Elbert and 10 more7 hr
Jun 13, 1:56 PM MDTTornado WatchSPCAdams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 10 more9 hr
Jun 13, 3:59 PM MDTTornado WatchSPCBaca, Bent, Cheyenne, Crowley, Kiowa, Kit Carson and 5 more8 hr
Jun 14, 1:50 PM MDTTornado WatchSPCAdams, Arapahoe, Boulder, Broomfield, Cheyenne, Denver and 13 more7 hr
Jun 15, 2:34 PM MDTTornado WatchSPCAdams, Arapahoe, Cheyenne, Denver, Douglas, Elbert and 9 more8 hr
Jun 17, 2:30 PM MDTTornado WatchSPCAdams, Arapahoe, Boulder, Broomfield, Denver, Douglas and 12 more8 hr
Jun 26, 3:50 PM MDTTornado WatchSPCLogan, Morgan, Phillips, Sedgwick, Washington, Yuma7 hr
Jul 17, 12:59 PM MDTTornado WatchSPCAdams, Arapahoe, Cheyenne, Elbert, Kit Carson, Lincoln and 7 more6 hr
Jul 17, 2:53 PM MDTTornado WatchSPCBaca, Bent, Crowley, Kiowa, Las Animas, Otero and 1 more6 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.

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.