Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 73, NWS Wichita, KS

June 11, 20214 counties in Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Jun 11, 2021, 8:59 PM CDT for 4 counties in Kansas. It was in force for 61 min. 5 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
Jun 11, 2021, 8:59 PM CDT (01:59 UTC)
Expired
Jun 11, 2021, 10:00 PM CDT
In force
61 min
Issued by
NWS Wichita, KS
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Butler County, KS, Cowley County, KS, Sedgwick County, KS, Sumner County, KS

The radar

The Wichita radar (KICT), 13 km from the middle of the area, began a volume at 02:02 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
Jun 11, 9:00 PM CDTHAIL 1.75Benton, KSDELAYED REPORT.
Jun 11, 9:06 PM CDTHAIL 0.753 Nw Augusta, KS
Jun 11, 9:12 PM CDTHAIL 0.753 Nnw Haysville, KSDELAYED REPORT. RECEIVED VIA MPING.
Jun 11, 9:19 PM CDTTSTM WND DMG3 S Andover, KSPOWER LINES DOWNED.
Jun 11, 9:33 PM CDTHAIL 0.751 Se Clearwater, 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
Jun 11, 6:46 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 2.0 hours before the alert went out and 210 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, Topeka, KS at 00:00Z on 2021-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 830 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, Topeka, KS at 00:00Z on 2021-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 82 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
830 J/kg
Mixed-layer CIN
-461 J/kg
Mixed-layer LCL
836 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
82 m²/s²
0-3 km storm-relative helicity
188 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.7

Open this sounding in Storm Lab

The text

As transmitted.

217 
WUUS53 KICT 120159
SVRICT
KSC015-035-173-191-120300-
/O.NEW.KICT.SV.W.0073.210612T0159Z-210612T0300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wichita KS
859 PM CDT Fri Jun 11 2021

The National Weather Service in Wichita has issued a

* Severe Thunderstorm Warning for...
  Northwestern Cowley County in south central Kansas...
  Southeastern Sedgwick County in south central Kansas...
  Southwestern Butler County in south central Kansas...
  Northeastern Sumner County in south central Kansas...

* Until 1000 PM CDT.

* At 857 PM CDT, a severe thunderstorm was located near Haysville, 
  moving south at 10 mph. Another severe storm was located near 
  Benton, moving south at 10 mph. This severe thunderstorm warning 
  replaces the previous warning in effect for the area. 

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Mcconnell Air Force Base around 900 PM CDT.
  South Wichita around 910 PM CDT.

Other locations in the path of this severe thunderstorm include
Derby, Haysville and Mulvane.

This includes the following highways...
 Interstate 135 between Mile Markers 0 and 9.
 Interstate 35 between Mile Markers 31 and 66.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3761 9757 3780 9714 3786 9695 3745 9699
      3742 9756
TIME...MOT...LOC 0157Z 350DEG 3KT 3761 9737 

HAIL...0.75IN
WIND...60MPH
 
$$

JAKUB
3 follow-up statements
894 
WWUS53 KICT 120216
SVSICT

Severe Weather Statement
National Weather Service Wichita KS
916 PM CDT Fri Jun 11 2021

KSC015-035-173-191-120300-
/O.CON.KICT.SV.W.0073.000000T0000Z-210612T0300Z/
Cowley KS-Sedgwick KS-Butler KS-Sumner KS-
916 PM CDT Fri Jun 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR NORTHWESTERN COWLEY...SOUTHEASTERN SEDGWICK...SOUTHWESTERN BUTLER
AND NORTHEASTERN SUMNER COUNTIES...

At 915 PM CDT, a severe thunderstorm was located over Haysville,
moving south at 10 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
  Clearwater, Derby and Mulvane.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3761 9757 3778 9716 3779 9696 3745 9699
      3742 9756
TIME...MOT...LOC 0215Z 348DEG 7KT 3755 9737 

HAIL...0.75IN
WIND...60MPH
 
$$

JAKUB
622 
WWUS53 KICT 120236
SVSICT

Severe Weather Statement
National Weather Service Wichita KS
936 PM CDT Fri Jun 11 2021

KSC015-035-173-191-120300-
/O.CON.KICT.SV.W.0073.000000T0000Z-210612T0300Z/
Cowley KS-Sedgwick KS-Butler KS-Sumner KS-
936 PM CDT Fri Jun 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR NORTHWESTERN COWLEY...SOUTHEASTERN SEDGWICK...SOUTHWESTERN BUTLER
AND NORTHEASTERN SUMNER COUNTIES...

At 935 PM CDT, a severe thunderstorm was located 5 miles south of 
Haysville, moving south at 10 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Wichita, Derby, Andover, Haysville, Augusta, Mulvane, Rose Hill,
Clearwater, Douglass, Eastborough, East Wichita, Mcconnell Air Force
Base, South Wichita, Santa Fe Lake, Augusta Municipal Airport and
Oaklawn.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3761 9757 3774 9716 3770 9697 3745 9699
      3742 9756
TIME...MOT...LOC 0235Z 346DEG 7KT 3750 9735 

HAIL...0.75IN
WIND...60MPH
 
$$

JAKUB
962 
WWUS53 KICT 120252
SVSICT

Severe Weather Statement
National Weather Service Wichita KS
952 PM CDT Fri Jun 11 2021

KSC015-035-173-191-120302-
/O.EXP.KICT.SV.W.0073.000000T0000Z-210612T0300Z/
Cowley KS-Sedgwick KS-Butler KS-Sumner KS-
952 PM CDT Fri Jun 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN COWLEY...
SOUTHEASTERN SEDGWICK...SOUTHWESTERN BUTLER AND NORTHEASTERN SUMNER
COUNTIES WILL EXPIRE AT 1000 PM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty
winds and heavy rain are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 200 AM CDT for
south central Kansas.

LAT...LON 3761 9757 3774 9716 3770 9697 3745 9699
      3742 9756
TIME...MOT...LOC 0252Z 350DEG 3KT 3749 9735 

$$

JAKUB

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 7:00 PM CDTSpecial Weather StatementICTChase45 min
Jun 11, 7:32 PM CDTSpecial Weather StatementICTButler43 min
Jun 11, 7:33 PM CDTSpecial Weather StatementICTLabette57 min
Jun 11, 7:49 PM CDTSpecial Weather StatementICTSedgwick41 min
Jun 11, 7:56 PM CDTSevere Thunderstorm WarningICTButler, Sedgwick64 min
Jun 11, 8:11 PM CDTAreal Flood WarningICTButler, Sedgwick3 hr
Jun 11, 8:27 PM CDTSevere Thunderstorm WarningICTSedgwick63 min
Jun 11, 8:44 PM CDTSpecial Weather StatementICTSedgwick31 min
Jun 11, 9:23 PM CDTSevere Thunderstorm WarningICTCowley, Sumner67 min
Jun 11, 10:02 PM CDTSevere Thunderstorm WarningICTCowley, Sumner58 min
Jun 11, 10:18 PM CDTSpecial Weather StatementICTHarper42 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2021Every severe thunderstorm warning in 2021

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.