Alert archive / Kansas / Severe Thunderstorm Watches in 2011
Severe Thunderstorm Watch 351
The Storm Prediction Center issued this severe thunderstorm watch at May 24, 2011, 1:42 AM MDT for Cheyenne County, Kit Carson County, Yuma County, Colorado; 21 counties in Kansas. It was in force for 4 hr.
The area
The outline as issued.
The facts
- Issued
- May 24, 2011, 1:42 AM MDT (07:42 UTC)
- Expired
- May 24, 2011, 5:56 AM MDT
- In force
- 4 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 50 kt
All 24 counties
Cheyenne County, CO, Kit Carson County, CO, Yuma County, CO, Cheyenne County, KS, Decatur County, KS, Ellis County, KS, Gove County, KS, Graham County, KS, Greeley County, KS, Lane County, KS, Logan County, KS, Ness County, KS, Norton County, KS, Phillips County, KS, Rawlins County, KS, Rooks County, KS, Rush County, KS, Scott County, KS, Sheridan County, KS, Sherman County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Wichita County, KS
The radar
The Goodland radar (KGLD), 35 km from the middle of the area, began a volume at 07:44 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
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 20%
- One or more gusts of 65 knots or more
- 5%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 2:17 AM MDT | Severe Thunderstorm Warning | GLD | Logan, Wichita | 19 min |
| May 24, 2:21 AM MDT | Severe Thunderstorm Warning | DDC | Scott | 39 min |
| May 24, 2:59 AM MDT | Severe Thunderstorm Warning | DDC | Lane, Scott | 61 min |
| May 24, 4:00 AM MDT | Severe Thunderstorm Warning | DDC | Lane, Scott | 45 min |
| May 24, 4:38 AM MDT | Severe Thunderstorm Warning | DDC | Lane, Ness | 52 min |
| May 24, 5:22 AM MDT | Severe Thunderstorm Warning | DDC | Ellis | 38 min |
| May 24, 5:29 AM MDT | Severe Thunderstorm Warning | DDC | Ellis, Ness, Pawnee, Rush, Trego | 46 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Denver, CO (KDNR), launched 00:00Z, 7.7 hours before the alert went out and 172 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 17 J/kg
- Mixed-layer CIN
- -110 J/kg
- Mixed-layer LCL
- 1651 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 63 m²/s²
- 0-3 km storm-relative helicity
- 146 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 1:24 AM MDT | Mesoscale Discussion | SPC | Kit Carson | 96 min |
| May 24, 9:37 AM MDT | Mesoscale Discussion | SPC | Arapahoe, Cheyenne, Elbert, Kit Carson, Lincoln, Phillips and 2 more | 83 min |
| May 24, 12:27 PM MDT | Tornado Watch | SPC | Baca, Cheyenne, Kiowa, Kit Carson, Prowers | 6 hr |
| May 24, 5:21 AM MDT | Mesoscale Discussion | SPC | Barton, Chase, Clay, Cloud, Dickinson, Edwards and 25 more | 54 min |
| May 24, 5:51 AM MDT | Severe Thunderstorm Watch | SPC | Barton, Brown, Butler, Chase, Clay, Cloud and 37 more | 5 hr |
| May 24, 8:18 AM MDT | Mesoscale Discussion | SPC | Allen, Anderson, Atchison, Bourbon, Chase, Clay and 28 more | 87 min |
| May 24, 11:59 AM MDT | Mesoscale Discussion | SPC | Barton, Edwards, Ellis, Ellsworth, Finney, Ford and 26 more | 91 min |
| May 24, 1:35 PM MDT | Mesoscale Discussion | SPC | Barber, Barton, Butler, Chase, Chautauqua, Coffey and 27 more | 85 min |
| May 24, 2:14 PM MDT | Tornado Watch | SPC | Allen, Barton, Butler, Chase, Chautauqua, Cowley and 20 more | 9 hr |
| May 24, 4:03 PM MDT | Mesoscale Discussion | SPC | Clay, Cloud, Dickinson, Geary, Jewell, Lincoln and 11 more | 57 min |
| May 24, 4:19 PM MDT | Tornado Watch | SPC | Anderson, Brown, Clay, Cloud, Coffey, Dickinson and 23 more | 7 hr |
Nearby
Severe Thunderstorm Watches in Kansas, 2011Severe Thunderstorm Watches in Colorado, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.