Alert archive / Kansas / Severe Thunderstorm Watches in 2013

Severe Thunderstorm Watch 84

April 7, 201333 counties in Kansas

The Storm Prediction Center issued this severe thunderstorm watch at Apr 7, 2013, 5:36 PM CDT for 33 counties in Kansas. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Apr 7, 2013, 5:36 PM CDT (22:36 UTC)
Expired
Apr 7, 2013, 10:01 PM CDT
In force
4 hr
Issued by
the Storm Prediction Center
Largest hail expected
2 in
Strongest gust expected
60 kt
All 33 counties

Barber County, KS, Barton County, KS, Clark County, KS, Comanche County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Ford County, KS, Harper County, KS, Harvey County, KS, Hodgeman County, KS, Jewell County, KS, Kingman County, KS, Kiowa County, KS, Lincoln County, KS, McPherson County, KS, Mitchell County, KS, Ness County, KS, Osborne County, KS, Pawnee County, KS, Phillips County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Sedgwick County, KS, Smith County, KS, Stafford County, KS, Sumner County, KS, Trego County, KS

The radar

The Dodge City radar (KDDC), 140 km from the middle of the area, began a volume at 22:39 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
30%
Ten or more severe hail reports
60%
One or more hailstones of 2 inches or more
20%
Six or more combined severe hail and wind reports
80%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Apr 7, 5:39 PM CDTSevere Thunderstorm WarningDDCRush66 min
Apr 7, 5:42 PM CDTSevere Thunderstorm WarningGIDRooks33 min
Apr 7, 5:58 PM CDTSevere Thunderstorm WarningGIDSmith32 min
Apr 7, 6:13 PM CDTSevere Thunderstorm WarningDDCEllis17 min
Apr 7, 6:15 PM CDTSevere Thunderstorm WarningGIDRooks30 min
Apr 7, 6:16 PM CDTSevere Thunderstorm WarningICTRussell44 min
Apr 7, 6:30 PM CDTSevere Thunderstorm WarningGIDSmith30 min
Apr 7, 6:33 PM CDTSevere Thunderstorm WarningGIDSmith42 min
Apr 7, 6:41 PM CDTSevere Thunderstorm WarningGIDOsborne, Smith34 min
Apr 7, 6:46 PM CDTSevere Thunderstorm WarningDDCRush44 min
Apr 7, 6:52 PM CDTSevere Thunderstorm WarningICTRussell53 min
Apr 7, 6:57 PM CDTSevere Thunderstorm WarningICTBarton63 min
Apr 7, 6:59 PM CDTSevere Thunderstorm WarningGIDJewell, Smith61 min
Apr 7, 7:36 PM CDTSevere Thunderstorm WarningICTBarton, Rice54 min
Apr 7, 8:26 PM CDTSevere Thunderstorm WarningICTMcPherson, Rice49 min
Apr 7, 9:08 PM CDTSevere Thunderstorm WarningICTHarvey, McPherson, Marion52 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, 10.6 hours before the alert went out and 135 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 2013-04-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2013-04-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 111 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2438 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
111 m²/s²
0-3 km storm-relative helicity
349 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
Apr 7, 1:47 PM CDTMesoscale DiscussionSPCAllen, Anderson, Bourbon, Butler, Chase, Coffey and 15 more118 min
Apr 7, 2:19 PM CDTSevere Thunderstorm WatchSPCAllen, Bourbon, Butler, Chautauqua, Cherokee, Cowley and 8 more8 hr
Apr 7, 3:42 PM CDTMesoscale DiscussionSPCBarton, Edwards, Ellis, Ellsworth, Ford, Hodgeman and 10 more2 hr
Apr 7, 6:10 PM CDTMesoscale DiscussionSPCAllen, Bourbon, Butler, Chautauqua, Cherokee, Cowley and 8 more65 min
Apr 7, 6:22 PM CDTMesoscale DiscussionSPCAtchison, Clay, Douglas, Franklin, Geary, Jackson and 12 more53 min

Nearby

Severe Thunderstorm Watches in Kansas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.