Alert archive / Kansas / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 71, NWS Wichita, KS

April 30, 2012Chautauqua County, Elk County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Apr 30, 2012, 9:23 PM CDT for Chautauqua County, Elk County, Kansas. It was in force for 46 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 30, 2012, 9:23 PM CDT (02:23 UTC)
Expired
Apr 30, 2012, 10:09 PM CDT
In force
46 min
Issued by
NWS Wichita, KS
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Chautauqua County, KS, Elk County, KS

The radar

The Wichita radar (KICT), 110 km from the middle of the area, began a volume at 02:26 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.

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 30, 7:30 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Lamont, OK (KLMN), launched 00:00Z, 2.4 hours before the alert went out and 143 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.

308 
WUUS53 KICT 010223
SVRICT
KSC019-049-010330-
/O.NEW.KICT.SV.W.0071.120501T0223Z-120501T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE WICHITA KS
923 PM CDT MON APR 30 2012

THE NATIONAL WEATHER SERVICE IN WICHITA HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTH CENTRAL CHAUTAUQUA COUNTY IN SOUTHEAST KANSAS...
  ELK COUNTY IN SOUTHEAST KANSAS...

* UNTIL 1030 PM CDT

* AT 921 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 7 MILES SOUTH OF
  MOLINE...AND MOVING NORTHEAST AT 25 MPH.

  HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED.

  IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
           DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.

* LOCATIONS IMPACTED INCLUDE...
  MOLINE...ELK FALLS...HOWARD AND LONGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS 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.

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3761 9635 3760 9596 3738 9597 3717 9627
      3723 9647
TIME...MOT...LOC 0223Z 216DEG 20KT 3727 9631

HAIL...1.00IN
WIND...60 MPH

$$

SMITH
3 follow-up statements
216 
WWUS53 KICT 010235
SVSICT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
935 PM CDT MON APR 30 2012

KSC019-049-010330-
/O.CON.KICT.SV.W.0071.000000T0000Z-120501T0330Z/
CHAUTAUQUA KS-ELK KS-
935 PM CDT MON APR 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR ELK AND NORTH
CENTRAL CHAUTAUQUA COUNTIES UNTIL 1030 PM CDT...

AT 931 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR MOLINE...AND
MOVING NORTHEAST AT 25 MPH.

HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
         DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.

LOCATIONS IMPACTED INCLUDE...
MOLINE...ELK FALLS...HOWARD AND LONGTON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS 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.

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3761 9635 3760 9596 3738 9597 3717 9627
      3723 9647
TIME...MOT...LOC 0235Z 216DEG 20KT 3732 9626

HAIL...1.00IN
WIND...60 MPH

$$

JAKUB
409 
WWUS53 KICT 010247
SVSICT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
947 PM CDT MON APR 30 2012

KSC019-049-010330-
/O.CON.KICT.SV.W.0071.000000T0000Z-120501T0330Z/
CHAUTAUQUA KS-ELK KS-
947 PM CDT MON APR 30 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR ELK AND NORTH
CENTRAL CHAUTAUQUA COUNTIES UNTIL 1030 PM CDT...

AT 945 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED 8 MILES NORTHWEST
OF SEDAN...AND MOVING NORTHEAST AT 30 MPH.

HAZARD...QUARTER SIZE HAIL AND 60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...MINOR DAMAGE TO VEHICLES...ROOFS AND WINDOWS. MINOR TREE
         DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER BROKEN.

LOCATIONS IMPACTED INCLUDE...
MOLINE...ELK FALLS...LONGTON AND HOWARD.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS 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.

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

LAT...LON 3761 9635 3760 9596 3738 9597 3717 9627
      3723 9647
TIME...MOT...LOC 0247Z 212DEG 26KT 3723 9626

HAIL...1.00IN
WIND...60 MPH

$$

JAKUB
735 
WWUS53 KICT 010309
SVSICT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE WICHITA KS
1009 PM CDT MON APR 30 2012

KSC019-049-010320-
/O.CAN.KICT.SV.W.0071.000000T0000Z-120501T0330Z/
CHAUTAUQUA KS-ELK KS-
1009 PM CDT MON APR 30 2012

...THE SEVERE THUNDERSTORM WARNING FOR ELK AND NORTH CENTRAL
CHAUTAUQUA COUNTIES IS CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.
 HOWEVER SMALL HAIL IS STILL POSSIBLE WITH THIS THUNDERSTORM.

LAT...LON 3761 9635 3760 9596 3738 9597 3717 9627
      3723 9647
TIME...MOT...LOC 0310Z 212DEG 26KT 3737 9615

$$

JAKUB

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 7:39 PM CDTSevere Thunderstorm WarningICTHarper66 min
Apr 30, 8:08 PM CDTSevere Thunderstorm WarningICTKingman67 min
Apr 30, 8:17 PM CDTTornado WarningICTKingman26 min
Apr 30, 8:19 PM CDTTornado WarningICTHarper56 min
Apr 30, 8:33 PM CDTSevere Thunderstorm WarningICTChautauqua14 min
Apr 30, 8:45 PM CDTSpecial Weather StatementICTKingman45 min
Apr 30, 8:47 PM CDTSevere Thunderstorm WarningICTLabette43 min
Apr 30, 9:11 PM CDTSevere Thunderstorm WarningICTLabette, Montgomery47 min
Apr 30, 9:12 PM CDTSevere Thunderstorm WarningICTLabette, Neosho63 min
Apr 30, 9:15 PM CDTTornado WarningICTHarper15 min
Apr 30, 9:52 PM CDTAreal Flood WarningICTLabette, Montgomery12 hr
Apr 30, 9:53 PM CDTSpecial Weather StatementICTSedgwick67 min
Apr 30, 9:56 PM CDTSpecial Weather StatementICTNeosho64 min
Apr 30, 10:08 PM CDTSevere Thunderstorm WarningICTLabette51 min
Apr 30, 10:13 PM CDTSevere Thunderstorm WarningICTAllen, Neosho29 min
Apr 30, 10:14 PM CDTSevere Thunderstorm WarningICTButler, Cowley, Sedgwick, Sumner61 min
Apr 30, 10:29 PM CDTSevere Thunderstorm WarningICTHarper, Sumner26 min
Apr 30, 10:51 PM CDTSpecial Weather StatementICTGreenwood54 min
Apr 30, 10:53 PM CDTAreal Flood WarningICTChautauqua12 hr
Apr 30, 11:06 PM CDTSpecial Weather StatementICTElk54 min
Apr 30, 11:11 PM CDTSpecial Weather StatementICTCowley64 min
Apr 30, 11:19 PM CDTSpecial Weather StatementICTLabette26 min
May 1, 12:05 AM CDTSpecial Weather StatementICTLabette25 min
May 1, 12:16 AM CDTSpecial Weather StatementICTLabette, Montgomery44 min
May 1, 12:59 AM CDTSpecial Weather StatementICTLabette31 min
May 1, 1:22 AM CDTSevere Thunderstorm WarningICTLabette25 min
May 1, 6:20 AM CDTSpecial Weather StatementICTChase, Marion25 min
May 1, 6:50 AM CDTSevere Thunderstorm WarningICTMarion27 min
May 1, 8:55 AM CDTRiver Flood WarningICTMontgomery, Wilson6 hr
May 1, 9:54 AM CDTAreal Flood WarningICTChautauqua, Labette, Montgomery6 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.