Alert archive / Kansas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 57, NWS Dodge City, KS

April 30, 2012Barber County, Kansas

NWS Dodge City, KS issued this severe thunderstorm warning at Apr 30, 2012, 7:41 PM CDT for Barber County, Kansas. It was in force for 49 min. 4 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
Apr 30, 2012, 7:41 PM CDT (00:41 UTC)
Expired
Apr 30, 2012, 8:30 PM CDT
In force
49 min
Issued by
NWS Dodge City, KS
Area
Storm-based polygon
Hail
1.5 in
Wind
50.0 mph

County Barber County, KS

The radar

The Vance AFB radar (KVNX), 54 km from the middle of the area, began a volume at 00:42 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
Apr 30, 7:44 PM CDTHAIL 1.253 W Hardtner, KS
Apr 30, 7:45 PM CDTHAIL 1.75E Kiowa, KS
Apr 30, 8:10 PM CDTHAIL 16 W Hardtner, KS
Apr 30, 8:28 PM CDTHAIL 2.51 S Hardtner, 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
Apr 30, 5:42 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Lamont, OK (KLMN), launched 00:00Z, 0.7 hours before the alert went out and 103 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, Lamont, OK at 00:00Z on 2012-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2077 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, Lamont, OK at 00:00Z on 2012-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 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
2077 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
1205 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
246 m²/s²
Significant tornado parameter
2.4
Supercell composite
16.5

Open this sounding in Storm Lab

The text

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

029 
WUUS53 KDDC 010041
SVRDDC
KSC007-010130-
/O.NEW.KDDC.SV.W.0057.120501T0041Z-120501T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE DODGE CITY KS
741 PM CDT MON APR 30 2012

THE NATIONAL WEATHER SERVICE IN DODGE CITY HAS ISSUED A

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

* UNTIL 830 PM CDT

* AT 740 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING PING PONG BALL SIZE HAIL. 
  THIS STORM WAS LOCATED NEAR HARDTNER...AND MOVING NORTHEAST AT 25
  MPH.

* LOCATIONS IMPACTED INCLUDE...
  HARDTNER...
  KIOWA...
  HAZELTON...
  SHARON...
  MAINLY RURAL AREAS OF SOUTHEASTERN BARBER COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 3700 9836 3700 9880 3739 9839 3739 9835
      3738 9834 3702 9834
TIME...MOT...LOC 0041Z 235DEG 22KT 3707 9861
WIND...HAIL <50MPH 1.50IN

$$

GERARD
2 follow-up statements
305 
WWUS53 KDDC 010102 RRA
SVSDDC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DODGE CITY KS
802 PM CDT MON APR 30 2012

KSC007-010130-
/O.CON.KDDC.SV.W.0057.000000T0000Z-120501T0130Z/
BARBER KS-
802 PM CDT MON APR 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR SOUTHEASTERN
BARBER COUNTY UNTIL 830 PM CDT...

AT 754 PM CDT...TRAINED WEATHER SPOTTERS REPORTED A BAND OF SEVERE 
THUNDERSTORMS PRODUCING HAIL UP TO GOLF BALL SIZE.  THESE STORMS 
WERE LOCATED FROM NEAR HARDTNER TO NEAR HAZELTON...AND 
MOVING NORTHEAST AT 30 MPH.

AT 735 PM GOLFBALL HAIL WAS REPORTED AT KIOWA BY LAW ENFORCEMENT.
AT 744 PM HALF DOLLAR SIZE HAIL WAS REPORTED 3 MILES WEST OF 
HARDTNER BY LAW ENFORCEMENT.

LOCATIONS IMPACTED INCLUDE...
  HARDTNER...
  KIOWA...
  HAZELTON...
  SHARON...
  MAINLY RURAL AREAS OF SOUTHEASTERN BARBER COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH NOT IMMEDIATELY
LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE TO A PLACE OF
SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT OR SMALL
INTERIOR ROOM.

&&

LAT...LON 3700 9836 3700 9880 3739 9839 3739 9835
      3738 9834 3702 9834
TIME...MOT...LOC 0059Z 233DEG 26KT 3706 9862
WIND...HAIL <50MPH 1.75IN

$$

GERARD
355 
WWUS53 KDDC 010132
SVSDDC

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE DODGE CITY KS
832 PM CDT MON APR 30 2012

KSC007-010141-
/O.EXP.KDDC.SV.W.0057.000000T0000Z-120501T0130Z/
BARBER KS-
832 PM CDT MON APR 30 2012

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN BARBER COUNTY 
HAS BEEN ALLOWED TO EXPIRE...

ADDITIONAL STRONG THUNDERSTORMS ARE STILL POSSIBLE...AND A TORNADO 
WATCH REMAINS IN EFFECT UNTIL 1 AM CDT.

TO REPORT SEVERE WEATHER...CONTACT YOUR NEAREST LAW ENFORCEMENT
AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE
IN DODGE CITY.

LAT...LON 3700 9836 3700 9880 3739 9839 3739 9835
      3738 9834 3702 9834
TIME...MOT...LOC 0102Z 233DEG 26KT 3707 9860

$$

GERARD

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 7:00 PM CDTTornado WarningDDCKiowa30 min
Apr 30, 7:11 PM CDTSevere Thunderstorm WarningDDCEdwards, Ford, Hodgeman, Pawnee49 min
Apr 30, 7:12 PM CDTTornado WarningDDCBarber, Comanche33 min
Apr 30, 7:14 PM CDTTornado WarningDDCBarber, Pratt31 min
Apr 30, 7:28 PM CDTSevere Thunderstorm WarningDDCEdwards33 min
Apr 30, 7:31 PM CDTTornado WarningDDCKiowa, Pratt23 min
Apr 30, 7:41 PM CDTTornado WarningDDCBarber, Pratt34 min
Apr 30, 7:44 PM CDTTornado WarningDDCBarber, Comanche31 min
Apr 30, 8:07 PM CDTSevere Thunderstorm WarningDDCEdwards, Ford, Kiowa26 min
Apr 30, 8:12 PM CDTTornado WarningDDCBarber, Pratt15 min
Apr 30, 8:15 PM CDTTornado WarningDDCBarber30 min
Apr 30, 8:40 PM CDTSevere Thunderstorm WarningDDCEdwards, Kiowa50 min
Apr 30, 8:44 PM CDTSevere Thunderstorm WarningDDCBarber21 min
Apr 30, 9:12 PM CDTSevere Thunderstorm WarningDDCBarber, Kiowa, Pratt48 min
Apr 30, 9:56 PM CDTSevere Thunderstorm WarningDDCBarber34 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2012Every severe thunderstorm warning in 2012

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.