Alert archive / Kansas / Tornado Warnings in 2021

Tornado Warning 7, NWS Topeka, KS

June 24, 2021Marshall County, Nemaha County, Kansas

NWS Topeka, KS issued this tornado warning at Jun 24, 2021, 6:16 PM CDT for Marshall County, Nemaha County, Kansas. It was in force for 29 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, 6:16 PM CDT (23:16 UTC)
Expired
Jun 24, 2021, 6:45 PM CDT
In force
29 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.5 in

Counties Marshall County, KS, Nemaha County, KS

The radar

The Topeka radar (KTWX), 107 km from the middle of the area, began a volume at 23:19 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, 11.3 hours before the alert went out and 116 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.

753 
WFUS53 KTOP 242316
TORTOP
KSC117-131-242345-
/O.NEW.KTOP.TO.W.0007.210624T2316Z-210624T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Topeka KS
616 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 645 PM CDT.
    
* At 615 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 5 miles north of Axtell, moving east at 25 mph.

  HAZARD...Tornado and ping pong 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 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 3992 9605 3991 9631 3999 9632 4000 9628
      4000 9608
TIME...MOT...LOC 2315Z 254DEG 20KT 3995 9627 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

Reese
1 follow-up statement
777 
WWUS53 KTOP 242325
SVSTOP

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

KSC117-242333-
/O.CAN.KTOP.TO.W.0007.000000T0000Z-210624T2345Z/
Marshall-
625 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 second tornado-warned storm is moving in from the west, and will 
affect portions of northeast Marshall County.

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

LAT...LON 3993 9605 3992 9624 4000 9624 4000 9608
TIME...MOT...LOC 2323Z 254DEG 20KT 3996 9621 

$$

KSC131-242345-
/O.CON.KTOP.TO.W.0007.000000T0000Z-210624T2345Z/
Nemaha-
625 PM CDT Thu Jun 24 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
NORTHWESTERN NEMAHA COUNTY...
    
At 623 PM CDT, a severe thunderstorm capable of producing a tornado
was located 6 miles northeast of Axtell, moving east at 25 mph.

HAZARD...Tornado and ping pong 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 3993 9605 3992 9624 4000 9624 4000 9608
TIME...MOT...LOC 2323Z 254DEG 20KT 3996 9621 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

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, 6:26 PM CDTTornado WarningTOPMarshall, Nemaha34 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.