Alert archive / Kansas / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 236, NWS Dodge City, KS

August 12, 2011Barber County, Pratt County, Kansas

NWS Dodge City, KS issued this severe thunderstorm warning at Aug 12, 2011, 5:44 PM CDT for Barber County, Pratt County, Kansas. It was in force for 46 min. 13 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Aug 12, 2011, 5:44 PM CDT (22:44 UTC)
Expired
Aug 12, 2011, 6:30 PM CDT
In force
46 min
Issued by
NWS Dodge City, KS
Area
Storm-based polygon
Hail
2.5 in
Wind
80.0 mph

Counties Barber County, KS, Pratt County, KS

The radar

The Vance AFB radar (KVNX), 90 km from the middle of the area, began a volume at 22:45 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 was reported inside it

TimeReportWhereRemark
Aug 12, 6:01 PM CDTTSTM WND GST 653 Ene Cullison, KS
Aug 12, 6:07 PM CDTTSTM WND GST 755 W Pratt, KS
Aug 12, 6:11 PM CDTTSTM WND GST 801 W Pratt, KS
Aug 12, 6:16 PM CDTTSTM WND GST 805 S Pratt, KS
Aug 12, 6:20 PM CDTTSTM WND GST 0Pratt, KSFIVE INCH TREE LIMB WAS DOWNED.
Aug 12, 6:20 PM CDTNON-TSTM WND DMGPratt, KSFIVE INCH TREE LIMB WAS DOWNED.
Aug 12, 6:22 PM CDTTSTM WND GST 80Pratt, KSNUMEROUS TREES DAMAGED IN PRATT WITH 3 TO 6 INCH LIMBS DOWN.
Aug 12, 6:22 PM CDTTSTM WND GST 80Pratt, KS
Aug 12, 6:23 PM CDTTSTM WND DMG2 Sw Pratt, KSTOPS OF POWER POLES SNAPPED AT 20TH ST SW OF PRATT
Aug 12, 6:27 PM CDTTSTM WND DMG3 Nw Sawyer, KS35 FOOT TRAILER WAS BLOWN ON TOP OF A CHEVY SUBURBAN.
Aug 12, 6:27 PM CDTNON-TSTM WND DMG3 Nw Sawyer, KS35 FOOT TRAILER WAS BLOWN ON TOP OF A CHEVY SUBURBAN.
Aug 12, 6:39 PM CDTTSTM WND GST 70Medicine Lodge, KS
Aug 12, 6:39 PM CDTTSTM WND GST 70Medicine Lodge, KS

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 12, 2:50 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 10.7 hours before the alert went out and 120 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 2011-08-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2073 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Dodge City, at 12:00Z on 2011-08-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 164 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
2073 J/kg
Mixed-layer CIN
-201 J/kg
Mixed-layer LCL
1158 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
164 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

271 
WUUS53 KDDC 122244
SVRDDC
KSC007-151-122330-
/O.NEW.KDDC.SV.W.0236.110812T2244Z-110812T2330Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DODGE CITY KS
544 PM CDT FRI AUG 12 2011

THE NATIONAL WEATHER SERVICE IN DODGE CITY HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  BARBER COUNTY IN SOUTH CENTRAL KANSAS...
  PRATT COUNTY IN SOUTH CENTRAL KANSAS...

* UNTIL 630 PM CDT

* AT 540 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING LARGE DESTRUCTIVE HAIL UP
  TO TENNIS BALL SIZE...AND DESTRUCTIVE HURRICANE FORCE WINDS IN
  EXCESS OF 80 MPH.  THIS STORM WAS LOCATED NEAR WELLSFORD...AND
  MOVING EAST AT 20 MPH.


* LOCATIONS IMPACTED INCLUDE...
  CROFT...
  CULLISON...
  SUN CITY...
  COATS...
  LAKE CITY...
  IUKA...
  PRATT...
  SAWYER...
  MAINLY RURAL AREAS OF BARBER AND PRATT COUNTIES.

AT 5:41 PM CDT...A STORM CHASER REPORTED 60 MPH WIND GUSTS 2 MILES 
WEST OF CULLISON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ALERT FOR RAPIDLY CHANGING WEATHER CONDITIONS. IF CAUGHT OUTSIDE
SEEK A STURDY SHELTER AND STAY AWAY FROM WINDOWS UNTIL THE STORM HAS
PASSED.

&&

LAT...LON 3782 9849 3738 9848 3738 9836 3701 9836
      3701 9899 3782 9901
TIME...MOT...LOC 2243Z 276DEG 18KT 3759 9897
WIND...HAIL 80MPH 2.50IN

$$

12

The office that day

Everything else NWS Dodge City, KS issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 12, 2:22 AM CDTSpecial Weather StatementDDCGrant, Hamilton, Kearny, Stanton38 min
Aug 12, 3:42 PM CDTSevere Thunderstorm WarningDDCHodgeman48 min
Aug 12, 3:56 PM CDTSevere Thunderstorm WarningDDCEdwards, Pawnee49 min
Aug 12, 4:28 PM CDTSevere Thunderstorm WarningDDCFord, Hodgeman47 min
Aug 12, 4:38 PM CDTSevere Thunderstorm WarningDDCFord, Gray, Hodgeman67 min
Aug 12, 4:42 PM CDTSevere Thunderstorm WarningDDCEdwards, Hodgeman, Pawnee48 min
Aug 12, 5:22 PM CDTSevere Thunderstorm WarningDDCEdwards, Kiowa53 min
Aug 12, 5:33 PM CDTSevere Thunderstorm WarningDDCComanche57 min
Aug 12, 6:08 PM CDTSevere Thunderstorm WarningDDCKiowa37 min
Aug 12, 6:27 PM CDTSevere Thunderstorm WarningDDCBarber, Pratt63 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2011Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.