Alert archive / Kansas / Severe Thunderstorm Watches in 2011
Severe Thunderstorm Watch 396
The Storm Prediction Center issued this severe thunderstorm watch at May 29, 2011, 4:48 PM CDT for 29 counties in Kansas; 4 counties in Oklahoma. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 29, 2011, 4:48 PM CDT (21:48 UTC)
- Expired
- May 29, 2011, 10:25 PM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 33 counties
Barber County, KS, Barton County, KS, Clark County, KS, Clay County, KS, Cloud County, KS, Comanche County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Ford County, KS, Jewell County, KS, Kingman County, KS, Kiowa County, KS, Lincoln County, KS, McPherson County, KS, Mitchell County, KS, Osborne County, KS, Ottawa County, KS, Pawnee County, KS, Pratt County, KS, Reno County, KS, Republic County, KS, Rice County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Smith County, KS, Stafford County, KS, Washington County, KS, Ellis County, OK, Harper County, OK, Woods County, OK, Woodward County, OK
The radar
The Dodge City radar (KDDC), 129 km from the middle of the area, began a volume at 21:51 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
- 50%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 20%
- 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 29, 6:13 PM CDT | Severe Thunderstorm Warning | GID | Jewell, Mitchell, Osborne, Smith | 47 min |
| May 29, 6:44 PM CDT | Severe Thunderstorm Warning | DDC | Ness, Pawnee, Rush | 46 min |
| May 29, 6:53 PM CDT | Severe Thunderstorm Warning | GID | Mitchell, Osborne | 52 min |
| May 29, 7:09 PM CDT | Severe Thunderstorm Warning | DDC | Ellis | 51 min |
| May 29, 7:37 PM CDT | Severe Thunderstorm Warning | ICT | Russell | 27 min |
| May 29, 7:38 PM CDT | Severe Thunderstorm Warning | GID | Jewell, Mitchell, Osborne | 39 min |
| May 29, 8:06 PM CDT | Severe Thunderstorm Warning | GID | Smith | 20 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
Dodge City, (KDDC), launched 12:00Z, 9.8 hours before the alert went out and 123 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
- 90 J/kg
- Mixed-layer CIN
- -999 J/kg
- Mixed-layer LCL
- 1225 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 269 m²/s²
- 0-3 km storm-relative helicity
- 278 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 |
|---|---|---|---|---|
| May 28, 9:27 PM CDT | Mesoscale Discussion | SPC | Greeley | 2 hr |
| May 29, 1:41 AM CDT | Mesoscale Discussion | SPC | Atchison, Brown, Dickinson, Doniphan, Douglas, Geary and 13 more | 2 hr |
| May 29, 3:10 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Clark, Comanche, Edwards, Ellsworth and 6 more | 95 min |
| May 29, 4:36 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Brown, Clark, Clay, Cloud and 34 more | 24 min |
| May 29, 6:35 PM CDT | Mesoscale Discussion | SPC | Barber, Barton, Clark, Clay, Cloud, Comanche and 29 more | 115 min |
Nearby
Severe Thunderstorm Watches in Kansas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.