Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 164, NWS Topeka, KS

September 2, 2021Dickinson County, Geary County, Morris County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Sep 2, 2021, 6:30 PM CDT for Dickinson County, Geary County, Morris County, Kansas. It was in force for 30 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
Sep 2, 2021, 6:30 PM CDT (23:30 UTC)
Expired
Sep 2, 2021, 7:00 PM CDT
In force
30 min
Issued by
NWS Topeka, KS
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

Counties Dickinson County, KS, Geary County, KS, Morris County, KS

The radar

The Topeka radar (KTWX), 61 km from the middle of the area, began a volume at 23:34 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
Sep 2, 5:27 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 11.5 hours before the alert went out and 111 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 2021-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2021-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 136 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
925 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
136 m²/s²
0-3 km storm-relative helicity
228 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

322 
WUUS53 KTOP 022330
SVRTOP
KSC041-061-127-030000-
/O.NEW.KTOP.SV.W.0164.210902T2330Z-210903T0000Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Topeka KS
630 PM CDT Thu Sep 2 2021

The National Weather Service in Topeka has issued a

* Severe Thunderstorm Warning for...
  East central Dickinson County in central Kansas...
  Southwestern Geary County in east central Kansas...
  Northwestern Morris County in east central Kansas...

* Until 700 PM CDT.

* At 630 PM CDT, a severe thunderstorm was located near Woodbine,
  moving east at 15 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Woodbine and Latimer. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until midnight CDT for central and
east central Kansas.

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

&&

LAT...LON 3874 9698 3890 9700 3896 9680 3872 9675
TIME...MOT...LOC 2330Z 265DEG 13KT 3881 9692 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$
Flanagan
2 follow-up statements
045 
WWUS53 KTOP 022348
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
648 PM CDT Thu Sep 2 2021

KSC041-022357-
/O.CAN.KTOP.SV.W.0164.000000T0000Z-210903T0000Z/
Dickinson-
648 PM CDT Thu Sep 2 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL DICKINSON COUNTY
IS CANCELLED...
    
The severe 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 midnight CDT for central and
east central Kansas.

LAT...LON 3874 9693 3881 9693 3881 9689 3887 9689
      3887 9693 3892 9692 3896 9680 3872 9675
TIME...MOT...LOC 2347Z 265DEG 13KT 3882 9684 

$$

KSC061-127-030000-
/O.CON.KTOP.SV.W.0164.000000T0000Z-210903T0000Z/
Geary-Morris-
648 PM CDT Thu Sep 2 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR SOUTHWESTERN GEARY AND NORTHWESTERN MORRIS COUNTIES...

At 647 PM CDT, a severe thunderstorm was located 5 miles north of
Latimer, moving east at 15 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Latimer.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until midnight CDT for central and
east central Kansas.

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

&&

LAT...LON 3874 9693 3881 9693 3881 9689 3887 9689
      3887 9693 3892 9692 3896 9680 3872 9675
TIME...MOT...LOC 2347Z 265DEG 13KT 3882 9684 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$
Flanagan
313 
WWUS53 KTOP 030000
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
700 PM CDT Thu Sep 2 2021

KSC061-127-030010-
/O.EXP.KTOP.SV.W.0164.000000T0000Z-210903T0000Z/
Geary-Morris-
700 PM CDT Thu Sep 2 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN GEARY AND
NORTHWESTERN MORRIS COUNTIES HAS EXPIRED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been allowed to expire.  However gusty winds and heavy rain are still
possible with this thunderstorm.

A Tornado Watch remains in effect until midnight CDT for central and
east central Kansas.

LAT...LON 3874 9693 3881 9693 3881 9689 3887 9689
      3887 9693 3892 9692 3896 9680 3872 9675
TIME...MOT...LOC 0000Z 265DEG 13KT 3882 9679 

$$

Flanagan

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 1:59 PM CDTSevere Thunderstorm WarningTOPOttawa46 min
Sep 2, 5:49 PM CDTSpecial Weather StatementTOPOttawa26 min
Sep 2, 5:53 PM CDTSpecial Weather StatementTOPDickinson37 min
Sep 2, 6:06 PM CDTSevere Thunderstorm WarningTOPDickinson, Geary, Morris24 min
Sep 2, 6:58 PM CDTSpecial Weather StatementTOPMorris32 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.