Alert archive / Kansas / Tornado Warnings in 2021

Tornado Warning 8, NWS Topeka, KS

June 24, 2021Marshall County, Nemaha County, Kansas

NWS Topeka, KS issued this tornado warning at Jun 24, 2021, 6:26 PM CDT for Marshall County, Nemaha County, Kansas. It was in force for 34 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 24, 2021, 6:26 PM CDT (23:26 UTC)
Expired
Jun 24, 2021, 7:00 PM CDT
In force
34 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Tornado
Radar indicated
Hail
2.0 in

Counties Marshall County, KS, Nemaha County, KS

The radar

The Topeka radar (KTWX), 105 km from the middle of the area, began a volume at 23:25 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 24, 3:44 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 11.4 hours before the alert went out and 117 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 2021-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2072 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 2021-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 342 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
2072 J/kg
Mixed-layer CIN
-283 J/kg
Mixed-layer LCL
688 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
342 m²/s²
0-3 km storm-relative helicity
386 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

501 
WFUS53 KTOP 242326
TORTOP
KSC117-131-250000-
/O.NEW.KTOP.TO.W.0008.210624T2326Z-210625T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Topeka KS
626 PM CDT Thu Jun 24 2021

The National Weather Service in Topeka has issued a

* Tornado Warning for...
  Northwestern Nemaha County in northeastern Kansas...
  Northeastern Marshall County in northeastern Kansas...

* Until 700 PM CDT.
    
* At 626 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 4 miles south of Summerfield, moving east at 30 mph.

  HAZARD...Tornado and hail up to two inches in diameter.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This tornadic thunderstorm will remain over mainly rural areas of
  northwestern Nemaha and northeastern Marshall Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3989 9610 3990 9641 3999 9641 4000 9637
      4000 9612
TIME...MOT...LOC 2326Z 266DEG 25KT 3994 9636 

TORNADO...RADAR INDICATED
HAIL...2.00IN

$$

Reese
2 follow-up statements
501 
WWUS53 KTOP 242343
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
643 PM CDT Thu Jun 24 2021

KSC117-242352-
/O.CAN.KTOP.TO.W.0008.000000T0000Z-210625T0000Z/
Marshall-
643 PM CDT Thu Jun 24 2021

...THE TORNADO WARNING FOR NORTHEASTERN MARSHALL COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1000 PM CDT for northeastern
Kansas.

LAT...LON 3989 9610 3991 9624 4000 9624 4000 9612
TIME...MOT...LOC 2342Z 266DEG 25KT 3995 9621 

$$

KSC131-250000-
/O.CON.KTOP.TO.W.0008.000000T0000Z-210625T0000Z/
Nemaha-
643 PM CDT Thu Jun 24 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 700 PM CDT FOR
NORTHWESTERN NEMAHA COUNTY...
    
At 642 PM CDT, a severe thunderstorm capable of producing a tornado
was located 5 miles northeast of Axtell, moving east at 30 mph.

HAZARD...Tornado and golf ball size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This tornadic thunderstorm will remain over mainly rural areas of
northwestern Nemaha County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3989 9610 3991 9624 4000 9624 4000 9612
TIME...MOT...LOC 2342Z 266DEG 25KT 3995 9621 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

Reese
796 
WWUS53 KTOP 242355
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
655 PM CDT Thu Jun 24 2021

KSC131-250004-
/O.EXP.KTOP.TO.W.0008.000000T0000Z-210625T0000Z/
Nemaha-
655 PM CDT Thu Jun 24 2021

...THE TORNADO WARNING FOR NORTHWESTERN NEMAHA COUNTY WILL EXPIRE AT
700 PM CDT...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

A Tornado Watch remains in effect until 1000 PM CDT for northeastern
Kansas.

Remember, a Severe Thunderstorm Warning still remains in effect for
Nemaha County.

LAT...LON 3989 9610 3991 9624 4000 9624 4000 9612
TIME...MOT...LOC 2354Z 266DEG 25KT 3995 9612 

$$

Reese

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 4:43 AM CDTSpecial Weather StatementTOPBrown32 min
Jun 24, 5:48 AM CDTSevere Thunderstorm WarningTOPJackson, Jefferson, Shawnee27 min
Jun 24, 6:42 AM CDTSevere Thunderstorm WarningTOPDouglas, Franklin18 min
Jun 24, 1:46 PM CDTFlash Flood WatchTOPAnderson, Brown, Coffey, Douglas, Franklin, Jackson and 9 more58 hr
Jun 24, 5:34 PM CDTSevere Thunderstorm WarningTOPMarshall26 min
Jun 24, 5:45 PM CDTTornado WarningTOPMarshall30 min
Jun 24, 6:01 PM CDTSevere Thunderstorm WarningTOPMarshall, Nemaha44 min
Jun 24, 6:07 PM CDTTornado WarningTOPMarshall23 min
Jun 24, 6:16 PM CDTTornado WarningTOPMarshall, Nemaha29 min
Jun 24, 6:36 PM CDTSevere Thunderstorm WarningTOPBrown, Nemaha24 min
Jun 24, 6:46 PM CDTSevere Thunderstorm WarningTOPPottawatomie, Riley29 min
Jun 24, 6:58 PM CDTAreal Flood AdvisoryTOPBrown, Nemaha61 min

Nearby

Tornado Warnings in Kansas, 2021Every tornado warning in 2021Tornadoes 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.