Alert archive / Colorado / Severe Thunderstorm Watches in 2011
Severe Thunderstorm Watch 462
The Storm Prediction Center issued this severe thunderstorm watch at Jun 11, 2011, 12:09 PM MDT for 10 counties in Colorado; Cimarron County, Oklahoma. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 11, 2011, 12:09 PM MDT (18:09 UTC)
- Expired
- Jun 11, 2011, 7:00 PM MDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 60 kt
Counties Baca County, CO, Bent County, CO, Crowley County, CO, El Paso County, CO, Huerfano County, CO, Kiowa County, CO, Las Animas County, CO, Otero County, CO, Prowers County, CO, Pueblo County, CO, Cimarron County, OK
The radar
The Pueblo radar (KPUX), 75 km from the middle of the area, began a volume at 18:10 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 60%
- One or more hailstones of 2 inches or more
- 50%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 1:53 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Otero | 32 min |
| Jun 11, 2:16 PM MDT | Severe Thunderstorm Warning | PUB | Bent | 59 min |
| Jun 11, 2:21 PM MDT | Severe Thunderstorm Warning | PUB | Las Animas | 54 min |
| Jun 11, 2:48 PM MDT | Tornado Warning | PUB | Las Animas | 42 min |
| Jun 11, 3:01 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Kiowa, Prowers | 59 min |
| Jun 11, 3:27 PM MDT | Severe Thunderstorm Warning | PUB | Bent, Las Animas | 63 min |
| Jun 11, 3:40 PM MDT | Severe Thunderstorm Warning | PUB | Baca, Prowers | 65 min |
| Jun 11, 4:14 PM MDT | Severe Thunderstorm Warning | PUB | Prowers | 16 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 11, 11:44 AM MDT | Mesoscale Discussion | SPC | Baca, Bent, Crowley, Kiowa, Las Animas, Otero and 2 more | 91 min |
| Jun 11, 3:04 PM MDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Elbert, Kit Carson, Logan, Morgan and 4 more | 86 min |
| Jun 11, 3:35 PM MDT | Severe Thunderstorm Watch | SPC | Adams, Arapahoe, Cheyenne, Elbert, Kit Carson, Lincoln and 7 more | 6 hr |
| Jun 11, 4:43 PM MDT | Mesoscale Discussion | SPC | Baca, Bent, Crowley, Kiowa, Las Animas, Otero and 2 more | 62 min |
| Jun 10, 6:47 PM MDT | Mesoscale Discussion | SPC | Blaine, Caddo, Canadian, Craig, Garfield, Kay and 12 more | 58 min |
| Jun 10, 7:50 PM MDT | Mesoscale Discussion | SPC | Caddo, Comanche, Grady, Greer, Harmon, Jackson and 3 more | 55 min |
| Jun 11, 1:28 PM MDT | Mesoscale Discussion | SPC | Beckham, Blaine, Caddo, Canadian, Carter, Cleveland and 25 more | 2 hr |
| Jun 11, 2:39 PM MDT | Severe Thunderstorm Watch | SPC | Alfalfa, Beaver, Beckham, Blaine, Cimarron, Custer and 9 more | 9 hr |
| Jun 11, 3:57 PM MDT | Mesoscale Discussion | SPC | Haskell, Latimer, LeFlore, McIntosh, Sequoyah | 63 min |
Nearby
Severe Thunderstorm Watches in Colorado, 2011Severe Thunderstorm Watches in Oklahoma, 2011Every severe thunderstorm watch in 2011
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.