Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 238, NWS Goodland, KS

September 17, 2021Graham County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Sep 17, 2021, 4:02 PM CDT for Graham County, Kansas. It was in force for 43 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 17, 2021, 4:02 PM CDT (21:02 UTC)
Expired: Sep 17, 2021, 4:45 PM CDT
In force: 43 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 1.25 in
Wind: 50.0 mph

County Graham County, KS

The nearest sounding before it

Dodge City, (KDDC), launched 12:00Z, 9.0 hours before the alert went out and 161 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 326 J/kg
Mixed-layer CIN: -373 J/kg
Mixed-layer LCL: 1512 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 119 m²/s²
0-3 km storm-relative helicity: 372 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

014 
WUUS53 KGLD 172102
SVRGLD
KSC065-172145-
/O.NEW.KGLD.SV.W.0238.210917T2102Z-210917T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
402 PM CDT Fri Sep 17 2021

The National Weather Service in Goodland has issued a

* Severe Thunderstorm Warning for...
  Southeastern Graham County in northwestern Kansas...

* Until 445 PM CDT.

* At 402 PM CDT, a severe thunderstorm was located 9 miles southwest
  of Bogue, or 10 miles southeast of Hill City, moving east at 25
  mph.

  HAZARD...Half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3913 9983 3921 9991 3935 9982 3932 9960
      3913 9961
TIME...MOT...LOC 2102Z 291DEG 21KT 3923 9977 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

AW

2 follow-up statements

086 
WWUS53 KGLD 172121
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
421 PM CDT Fri Sep 17 2021

KSC065-172145-
/O.CON.KGLD.SV.W.0238.000000T0000Z-210917T2145Z/
Graham KS-
421 PM CDT Fri Sep 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR SOUTHEASTERN GRAHAM COUNTY...

At 420 PM CDT, a severe thunderstorm was located 8 miles west of
Palco, or 12 miles southeast of Hill City, moving east at 15 mph.

HAZARD...Half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3920 9983 3931 9978 3932 9960 3913 9961
      3913 9976
TIME...MOT...LOC 2120Z 292DEG 13KT 3921 9971 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...<50 MPH

$$

AW

542 
WWUS53 KGLD 172145
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
445 PM CDT Fri Sep 17 2021

KSC065-172154-
/O.EXP.KGLD.SV.W.0238.000000T0000Z-210917T2145Z/
Graham KS-
445 PM CDT Fri Sep 17 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN GRAHAM COUNTY
WILL EXPIRE AT 445 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 small hail
is still possible with this thunderstorm.

LAT...LON 3920 9983 3931 9978 3932 9960 3913 9961
      3913 9976
TIME...MOT...LOC 2144Z 291DEG 21KT 3916 9955 

$$

AW

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 17, 3:47 PM CDT	Special Weather Statement	GLD	Graham	28 min
Sep 17, 4:44 PM CDT	Special Weather Statement	GLD	Graham	31 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2021 Every 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.