Alert archive / Colorado / Severe Thunderstorm Watches in 2013

Severe Thunderstorm Watch 448

July 26, 20134 states

The Storm Prediction Center issued this severe thunderstorm watch at Jul 26, 2013, 3:11 PM MDT for 4 states. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jul 26, 2013, 3:11 PM MDT (21:11 UTC)
Expired
Jul 26, 2013, 9:21 PM MDT
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
65 kt

Counties Logan County, CO, Morgan County, CO, Phillips County, CO, Sedgwick County, CO, Washington County, CO, Weld County, CO, Yuma County, CO, Cheyenne County, KS, Banner County, NE, Cheyenne County, NE, Dundy County, NE, Kimball County, NE, Morrill County, NE, Scotts Bluff County, NE, Goshen County, WY, Laramie County, WY, Platte County, WY

The radar

The Cheyenne radar (KCYS), 92 km from the middle of the area, began a volume at 21:14 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
5%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
30%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
40%
One or more hailstones of 2 inches or more
30%
Six or more combined severe hail and wind reports
60%

Warnings issued inside it

13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jul 26, 4:00 PM MDTSevere Thunderstorm WarningCYSLaramie30 min
Jul 26, 4:05 PM MDTSevere Thunderstorm WarningCYSLaramie40 min
Jul 26, 4:17 PM MDTSevere Thunderstorm WarningCYSLaramie28 min
Jul 26, 4:29 PM MDTSevere Thunderstorm WarningCYSLaramie31 min
Jul 26, 4:30 PM MDTSevere Thunderstorm WarningCYSLaramie30 min
Jul 26, 4:58 PM MDTSevere Thunderstorm WarningBOUWeld47 min
Jul 26, 5:00 PM MDTSevere Thunderstorm WarningCYSLaramie30 min
Jul 26, 5:30 PM MDTSevere Thunderstorm WarningBOUWeld60 min
Jul 26, 5:30 PM MDTSevere Thunderstorm WarningCYSLaramie45 min
Jul 26, 5:45 PM MDTSevere Thunderstorm WarningBOUWeld45 min
Jul 26, 6:31 PM MDTSevere Thunderstorm WarningBOUMorgan, Weld44 min
Jul 26, 7:17 PM MDTSevere Thunderstorm WarningBOUAdams, Morgan28 min
Jul 26, 7:31 PM MDTSevere Thunderstorm WarningBOUAdams, Weld29 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.

IssuedProductOfficeCountiesLasted
Jul 26, 1:21 PM MDTMesoscale DiscussionSPCAdams, Cheyenne, Kiowa, Kit Carson, Lincoln, Logan and 3 more114 min
Jul 25, 6:34 PM MDTMesoscale DiscussionSPCAdams, Boone, Buffalo, Burt, Butler, Clay and 27 more56 min

Nearby

Severe Thunderstorm Watches in Colorado, 2013Severe Thunderstorm Watches in Nebraska, 2013Severe Thunderstorm Watches in Wyoming, 2013Every severe thunderstorm watch in 2013

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.