Alert archive / Kansas / Severe Thunderstorm Watches in 2011
Severe Thunderstorm Watch 505
The Storm Prediction Center issued this severe thunderstorm watch at Jun 18, 2011, 5:36 PM CDT for 26 counties in Kansas; 20 counties in Nebraska. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 18, 2011, 5:36 PM CDT (22:36 UTC)
- Expired
- Jun 19, 2011, 12:14 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 46 counties
Decatur County, KS, Edwards County, KS, Ellis County, KS, Finney County, KS, Ford County, KS, Gove County, KS, Graham County, KS, Gray County, KS, Hamilton County, KS, Hodgeman County, KS, Kearny County, KS, Lane County, KS, Logan County, KS, Ness County, KS, Norton County, KS, Pawnee County, KS, Phillips County, KS, Rawlins County, KS, Rooks County, KS, Rush County, KS, Scott County, KS, Sheridan County, KS, Stafford County, KS, Thomas County, KS, Trego County, KS, Wichita County, KS, Buffalo County, NE, Custer County, NE, Dawson County, NE, Franklin County, NE, Frontier County, NE, Furnas County, NE, Gosper County, NE, Harlan County, NE, Hayes County, NE, Hitchcock County, NE, Hooker County, NE, Kearney County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Phelps County, NE, Red Willow County, NE, Sherman County, NE, Thomas County, NE, Valley County, NE
The radar
The Goodland radar (KGLD), 121 km from the middle of the area, began a volume at 22:37 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
- 20%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 20%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
18 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 18, 5:36 PM CDT | Severe Thunderstorm Warning | GLD | Sherman, Thomas | 54 min |
| Jun 18, 6:13 PM CDT | Severe Thunderstorm Warning | LBF | McPherson | 47 min |
| Jun 18, 7:32 PM CDT | Severe Thunderstorm Warning | GLD | Gove, Graham, Logan, Sheridan | 58 min |
| Jun 18, 7:34 PM CDT | Severe Thunderstorm Warning | DDC | Lane, Scott | 56 min |
| Jun 18, 7:46 PM CDT | Severe Thunderstorm Warning | GLD | Greeley, Wichita | 59 min |
| Jun 18, 7:48 PM CDT | Tornado Warning | GLD | Gove | 42 min |
| Jun 18, 8:19 PM CDT | Severe Thunderstorm Warning | DDC | Finney, Gray, Hodgeman, Ness | 41 min |
| Jun 18, 8:28 PM CDT | Severe Thunderstorm Warning | DDC | Lane, Ness | 62 min |
| Jun 18, 8:44 PM CDT | Severe Thunderstorm Warning | DDC | Finney, Scott | 46 min |
| Jun 18, 9:03 PM CDT | Severe Thunderstorm Warning | DDC | Finney, Gray, Lane, Scott | 57 min |
| Jun 18, 9:25 PM CDT | Severe Thunderstorm Warning | GID | Buffalo, Dawson | 50 min |
| Jun 18, 9:40 PM CDT | Severe Thunderstorm Warning | DDC | Finney, Ford, Gray, Hodgeman | 65 min |
| Jun 18, 10:07 PM CDT | Severe Thunderstorm Warning | DDC | Finney, Ford, Gray, Hodgeman | 68 min |
| Jun 18, 10:11 PM CDT | Severe Thunderstorm Warning | GID | Buffalo, Franklin, Harlan, Kearney, Phelps | 49 min |
| Jun 18, 10:40 PM CDT | Severe Thunderstorm Warning | DDC | Edwards, Ford, Hodgeman, Pawnee | 50 min |
| Jun 18, 10:49 PM CDT | Severe Thunderstorm Warning | GID | Franklin, Kearney | 41 min |
| Jun 18, 11:14 PM CDT | Severe Thunderstorm Warning | GID | Adams, Franklin, Kearney, Webster | 46 min |
| Jun 18, 11:25 PM CDT | Severe Thunderstorm Warning | DDC | Edwards, Pratt, Stafford | 50 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 12:00Z, 10.6 hours before the alert went out and 202 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
- 110 J/kg
- Mixed-layer CIN
- -160 J/kg
- Mixed-layer LCL
- 1171 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 52 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 17, 8:27 PM CDT | Mesoscale Discussion | SPC | Bent, Cheyenne, Crowley, Kiowa, Lincoln, Prowers | 93 min |
| Jun 18, 12:45 PM CDT | Mesoscale Discussion | SPC | Adams, Arapahoe, Cheyenne, Elbert, Kit Carson, Lincoln and 7 more | 2 hr |
| Jun 18, 1:31 PM CDT | Severe Thunderstorm Watch | SPC | Bent, Cheyenne, Crowley, Elbert, El Paso, Kiowa and 11 more | 7 hr |
| Jun 18, 5:15 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Kiowa, Kit Carson, Phillips, Prowers, Sedgwick and 1 more | 90 min |
| Jun 17, 8:19 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Atchison, Barton, Bourbon, Brown and 67 more | 7 hr |
| Jun 17, 11:12 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Butler, Chase, Clay and 45 more | 93 min |
| Jun 18, 2:07 AM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Atchison, Barton, Bourbon, Brown and 49 more | 53 min |
| Jun 18, 3:34 PM CDT | Mesoscale Discussion | SPC | Allen, Anderson, Bourbon, Butler, Chautauqua, Cherokee and 10 more | 116 min |
| Jun 18, 6:03 PM CDT | Severe Thunderstorm Watch | SPC | Allen, Anderson, Bourbon, Butler, Chautauqua, Cherokee and 20 more | 10 hr |
| Jun 17, 7:09 PM CDT | Severe Thunderstorm Watch | SPC | Burt, Cass, Cuming, Dakota, Dodge, Douglas and 6 more | 3 hr |
Nearby
Severe Thunderstorm Watches in Kansas, 2011Severe Thunderstorm Watches in Nebraska, 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.