Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 52, NWS Topeka, KS

June 11, 2021Jackson County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Jun 11, 2021, 3:35 PM CDT for Jackson County, Kansas. It was in force for 25 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
Jun 11, 2021, 3:35 PM CDT (20:35 UTC)
Expired
Jun 11, 2021, 4:00 PM CDT
In force
25 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Jackson County, KS

The radar

The Topeka radar (KTWX), 64 km from the middle of the area, began a volume at 20:38 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
Jun 11, 8:30 AM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 8.6 hours before the alert went out and 45 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 12:00Z on 2021-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2135 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 12:00Z on 2021-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.1939Sfc1 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
2135 J/kg
Mixed-layer CIN
-160 J/kg
Mixed-layer LCL
1019 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
72 m²/s²
Significant tornado parameter
0.0
Supercell composite
-1.2

Open this sounding in Storm Lab

The text

As transmitted.

454 
WUUS53 KTOP 112035
SVRTOP
KSC085-112100-
/O.NEW.KTOP.SV.W.0052.210611T2035Z-210611T2100Z/

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

The National Weather Service in Topeka has issued a

* Severe Thunderstorm Warning for...
  Central Jackson County in northeastern Kansas...

* Until 400 PM CDT.

* At 334 PM CDT, a severe thunderstorm was located 4 miles northwest
  of Potawatomi Reservation, moving east at 40 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Holton and Mayetta around 350 PM CDT.

Other locations in the path of this severe thunderstorm include
Denison.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3942 9559 3929 9559 3932 9600 3942 9602
      3952 9557 3942 9557
TIME...MOT...LOC 2034Z 261DEG 36KT 3938 9591 

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

CP
2 follow-up statements
297 
WWUS53 KTOP 112052
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
352 PM CDT Fri Jun 11 2021

KSC085-112100-
/O.CON.KTOP.SV.W.0052.000000T0000Z-210611T2100Z/
Jackson-
352 PM CDT Fri Jun 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 PM CDT
FOR SOUTHEASTERN JACKSON COUNTY...

At 352 PM CDT, a severe thunderstorm was located near Mayetta, moving
east at 40 mph.

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

SOURCE...Radar indicated.

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

This severe thunderstorm will remain over mainly rural areas of
southeastern Jackson County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3942 9559 3929 9559 3931 9586 3940 9585
      3946 9557 3942 9557
TIME...MOT...LOC 2052Z 267DEG 35KT 3936 9569 

HAIL...0.88IN
WIND...60MPH
 
$$

CP
839 
WWUS53 KTOP 112056
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
356 PM CDT Fri Jun 11 2021

KSC085-112105-
/O.EXP.KTOP.SV.W.0052.000000T0000Z-210611T2100Z/
Jackson-
356 PM CDT Fri Jun 11 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN JACKSON COUNTY
WILL EXPIRE AT 400 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with this thunderstorm.

LAT...LON 3942 9559 3929 9559 3931 9586 3940 9585
      3946 9557 3942 9557
TIME...MOT...LOC 2055Z 261DEG 36KT 3936 9567 

$$

CP

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 11, 12:10 PM CDTSpecial Weather StatementTOPNemaha35 min
Jun 11, 12:19 PM CDTSevere Thunderstorm WarningTOPBrown, Marshall, Nemaha41 min
Jun 11, 12:56 PM CDTSevere Thunderstorm WarningTOPBrown, Jackson, Nemaha49 min
Jun 11, 1:28 PM CDTSevere Thunderstorm WarningTOPJackson, Jefferson47 min
Jun 11, 2:03 PM CDTSevere Thunderstorm WarningTOPDouglas, Jefferson, Shawnee42 min
Jun 11, 2:10 PM CDTSevere Thunderstorm WarningTOPJefferson35 min
Jun 11, 2:21 PM CDTSpecial Weather StatementTOPShawnee, Wabaunsee24 min
Jun 11, 2:25 PM CDTSevere Thunderstorm WarningTOPJackson19 min
Jun 11, 2:40 PM CDTSevere Thunderstorm WarningTOPDouglas, Jefferson, Shawnee50 min
Jun 11, 3:08 PM CDTAreal Flood AdvisoryTOPDouglas3 hr
Jun 11, 3:20 PM CDTSevere Thunderstorm WarningTOPJackson, Jefferson25 min
Jun 11, 4:05 PM CDTSevere Thunderstorm WarningTOPCoffey, Douglas, Franklin, Osage40 min
Jun 11, 4:45 PM CDTSevere Thunderstorm WarningTOPAnderson, Franklin30 min
Jun 11, 5:15 PM CDTSevere Thunderstorm WarningTOPAnderson, Franklin30 min
Jun 11, 5:32 PM CDTSevere Thunderstorm WarningTOPAnderson, Coffey28 min
Jun 11, 6:01 PM CDTSevere Thunderstorm WarningTOPAnderson, Coffey29 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.