Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 129, NWS Springfield, MO

September 20, 2021Cherokee County, Crawford County, Kansas

NWS Springfield, MO issued this severe thunderstorm warning at Sep 20, 2021, 8:21 PM CDT for Cherokee County, Crawford County, Kansas. It was in force for 39 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 20, 2021, 8:21 PM CDT (01:21 UTC)
Expired
Sep 20, 2021, 9:00 PM CDT
In force
39 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

Counties Cherokee County, KS, Crawford County, KS

The radar

The Springfield radar (KSGF), 129 km from the middle of the area, began a volume at 01:21 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 nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.4 hours before the alert went out and 105 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, Springfield, MO at 00:00Z on 2021-09-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 842 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, Springfield, MO at 00:00Z on 2021-09-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 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
842 J/kg
Mixed-layer CIN
-128 J/kg
Mixed-layer LCL
1973 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
205 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.8

Open this sounding in Storm Lab

The text

As transmitted.

479 
WUUS53 KSGF 210121
SVRSGF
KSC021-037-210200-
/O.NEW.KSGF.SV.W.0129.210921T0121Z-210921T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
821 PM CDT Mon Sep 20 2021

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Northeastern Cherokee County in southeastern Kansas...
  Southeastern Crawford County in southeastern Kansas...

* Until 900 PM CDT.

* At 821 PM CDT, a severe thunderstorm was located over Pittsburg,
  moving east at 20 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Pittsburg...                      Frontenac...
  Cherokee...                       Weir...
  Scammon...                        Chicopee...
  West Mineral...                   Roseland...
  Lone Oak...                       Skidmore...
  Opolis...                         Carona...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3740 9496 3746 9462 3723 9462 3724 9497
      3735 9496
TIME...MOT...LOC 0121Z 273DEG 18KT 3743 9473 

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

$$

Runnels
2 follow-up statements
637 
WWUS53 KSGF 210137
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
837 PM CDT Mon Sep 20 2021

KSC021-037-210200-
/O.CON.KSGF.SV.W.0129.000000T0000Z-210921T0200Z/
Cherokee KS-Crawford KS-
837 PM CDT Mon Sep 20 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR NORTHEASTERN CHEROKEE AND SOUTHEASTERN CRAWFORD COUNTIES...

At 836 PM CDT, a severe thunderstorm extended from Chicopee to 
Weir, moving east at 25 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Pittsburg...                      Frontenac...
Cherokee...                       Weir...
Scammon...                        Chicopee...
Roseland...                       Opolis...
Carona...                         

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3746 9462 3723 9462 3726 9488 3742 9482
TIME...MOT...LOC 0136Z 275DEG 22KT 3734 9471 

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

$$

Runnels
978 
WWUS53 KSGF 210155
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
855 PM CDT Mon Sep 20 2021

KSC021-037-210202-
/O.EXP.KSGF.SV.W.0129.000000T0000Z-210921T0200Z/
Cherokee KS-Crawford KS-
855 PM CDT Mon Sep 20 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CHEROKEE AND
SOUTHEASTERN CRAWFORD COUNTIES WILL EXPIRE AT 900 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.

Gusty winds to 40 mph and frequent lightning will accompany this 
storm as in moves into northwestern Jasper County.

LAT...LON 3746 9462 3723 9462 3726 9488 3742 9482
TIME...MOT...LOC 0152Z 273DEG 18KT 3734 9462 

$$

Runnels

The office that day

Everything else NWS Springfield, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 20, 7:48 PM CDTSpecial Weather StatementSGFCrawford27 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.