Alert archive / Kansas / Severe Thunderstorm Watches in 2014

Severe Thunderstorm Watch 458

August 9, 201428 counties in Kansas

The Storm Prediction Center issued this severe thunderstorm watch at Aug 9, 2014, 6:52 PM CDT for 28 counties in Kansas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Aug 9, 2014, 6:52 PM CDT (23:52 UTC)
Expired
Aug 10, 2014, 1:10 AM CDT
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 28 counties

Barton County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Finney County, KS, Ford County, KS, Grant County, KS, Gray County, KS, Hamilton County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Kiowa County, KS, Lane County, KS, Lincoln County, KS, McPherson County, KS, Ness County, KS, Pawnee County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Scott County, KS, Stafford County, KS, Stanton County, KS, Trego County, KS

The radar

The Dodge City radar (KDDC), 61 km from the middle of the area, began a volume at 23:53 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
5%
Ten or more severe wind reports
60%
One or more gusts of 65 knots or more
10%
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
80%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Aug 9, 7:18 PM CDTFlash Flood WarningDDCStanton4 hr
Aug 9, 7:27 PM CDTSevere Thunderstorm WarningDDCHamilton, Kearny63 min
Aug 9, 8:06 PM CDTSevere Thunderstorm WarningDDCStanton26 min
Aug 9, 10:45 PM CDTSevere Thunderstorm WarningICTLincoln, Russell60 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, 11.9 hours before the alert went out and 62 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.

Skew-T log-pSkew-T log-p diagram, Dodge City, at 12:00Z on 2014-08-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 216 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 12:00Z on 2014-08-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
216 J/kg
Mixed-layer CIN
-260 J/kg
Mixed-layer LCL
2016 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 8, 11:48 PM CDTMesoscale DiscussionSPCJewell, Norton, Phillips, Republic, Smith87 min
Aug 9, 2:46 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Gove, Graham, Greeley, Lane and 12 more119 min
Aug 9, 3:03 PM CDTSevere Thunderstorm WatchSPCCheyenne, Decatur, Gove, Graham, Greeley, Jewell and 13 more9 hr
Aug 9, 5:32 PM CDTMesoscale DiscussionSPCChase, Clay, Cloud, Dickinson, Ellsworth, Geary and 8 more88 min
Aug 9, 5:57 PM CDTMesoscale DiscussionSPCClark, Edwards, Finney, Ford, Grant, Gray and 16 more63 min
Aug 9, 6:40 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Graham, Jewell, Mitchell, Norton and 8 more95 min

Nearby

Severe Thunderstorm Watches in Kansas, 2014Every severe thunderstorm watch in 2014

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.