Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 188, NWS Goodland, KS

August 10, 2021Graham County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Aug 10, 2021, 12:33 AM CDT for Graham County, Kansas. It was in force for 41 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Aug 10, 2021, 12:33 AM CDT (05:33 UTC)
Expired: Aug 10, 2021, 1:14 AM CDT
In force: 41 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Graham County, KS

The radar

The Goodland radar (KGLD), 153 km from the middle of the area, began a volume at 05:36 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.

What was reported inside it

Time	Report	Where	Remark
Aug 10, 12:44 AM CDT	TSTM WND GST 65	4 Wnw Nicodemus, KS	WEATHER STATION KKSBOGUE1 MEASURED A 65 MPH WIND GUST AT 11:44 PM MDT (12:44 AM CDT), AND A 59 MPH GUST AT 11:49 PM MDT (12:49 AM CDT). WIND DIRECTION WAS FROM THE W AND WSW.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 5.6 hours before the alert went out and 184 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: 2462 J/kg
Mixed-layer CIN: -76 J/kg
Mixed-layer LCL: 2392 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 178 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.5

Open this sounding in Storm Lab

The text

As transmitted.

263 
WUUS53 KGLD 100533
SVRGLD
KSC065-100630-
/O.NEW.KGLD.SV.W.0188.210810T0533Z-210810T0630Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
1233 AM CDT Tue Aug 10 2021

The National Weather Service in Goodland has issued a

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

* Until 130 AM CDT.

* At 1233 AM CDT, a severe thunderstorm was located 7 miles northeast
  of Hill City, moving southeast at 15 mph.

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

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Bogue and Nicodemus.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3937 10013 3957 10013 3957 9960 3926 9961
TIME...MOT...LOC 0533Z 298DEG 13KT 3947 9979 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Vincent

6 follow-up statements

054 
WWUS53 KGLD 100541
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
1241 AM CDT Tue Aug 10 2021

KSC065-100630-
/O.CON.KGLD.SV.W.0188.000000T0000Z-210810T0630Z/
Graham KS-
1241 AM CDT Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM CDT
FOR NORTHEASTERN GRAHAM COUNTY...

At 1240 AM CDT, a severe thunderstorm was located 7 miles north of
Bogue, or 8 miles northeast of Hill City, moving east at 15 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Hill City, Bogue and Nicodemus. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3933 9993 3957 10001 3957 9960 3926 9961
TIME...MOT...LOC 0540Z 279DEG 15KT 3946 9974 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Vincent

877 
WWUS53 KGLD 100548
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
1248 AM CDT Tue Aug 10 2021

KSC065-100630-
/O.CON.KGLD.SV.W.0188.000000T0000Z-210810T0630Z/
Graham KS-
1248 AM CDT Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM CDT
FOR NORTHEASTERN GRAHAM COUNTY...

At 1247 AM CDT, a severe thunderstorm was located 6 miles northwest
of Nicodemus, or 11 miles northeast of Hill City, moving east at 20
mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Hill City, Bogue and Nicodemus. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3935 9984 3940 9991 3957 9993 3957 9960
      3929 9961 3932 9972
TIME...MOT...LOC 0547Z 278DEG 16KT 3947 9967 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Vincent

196 
WWUS53 KGLD 100552
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
1252 AM CDT Tue Aug 10 2021

KSC065-100630-
/O.CON.KGLD.SV.W.0188.000000T0000Z-210810T0630Z/
Graham KS-
1252 AM CDT Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM CDT
FOR NORTHEASTERN GRAHAM COUNTY...

At 1251 AM CDT, a severe thunderstorm was located 6 miles north of
Nicodemus, or 15 miles northeast of Hill City, moving east at 25 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Hill City, Bogue and Nicodemus. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3935 9981 3940 9988 3957 9990 3957 9960
      3929 9961 3932 9972
TIME...MOT...LOC 0551Z 274DEG 21KT 3949 9961 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Vincent

419 
WWUS53 KGLD 100557
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
1257 AM CDT Tue Aug 10 2021

KSC065-100630-
/O.CON.KGLD.SV.W.0188.000000T0000Z-210810T0630Z/
Graham KS-
1257 AM CDT Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM CDT
FOR NORTHEASTERN GRAHAM COUNTY...

At 1257 AM CDT, a severe thunderstorm was located 6 miles north of
Nicodemus, or 16 miles northeast of Hill City, moving east at 25 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Bogue and Nicodemus. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3933 9972 3936 9979 3939 9984 3946 9984
      3957 9983 3957 9960 3929 9961 3931 9965
TIME...MOT...LOC 0557Z 273DEG 22KT 3949 9958 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Vincent

760 
WWUS53 KGLD 100602
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
102 AM CDT Tue Aug 10 2021

KSC065-100630-
/O.CON.KGLD.SV.W.0188.000000T0000Z-210810T0630Z/
Graham KS-
102 AM CDT Tue Aug 10 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 AM CDT
FOR NORTHEASTERN GRAHAM COUNTY...

At 101 AM CDT, a severe thunderstorm was located 8 miles northwest of
Webster State Park, or 18 miles northeast of Hill City, moving east
at 25 mph.

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

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Bogue and Nicodemus. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3935 9970 3938 9974 3944 9976 3957 9975
      3957 9960 3933 9961 3933 9962
TIME...MOT...LOC 0601Z 272DEG 21KT 3950 9954 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Vincent

451 
WWUS53 KGLD 100614
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
114 AM CDT Tue Aug 10 2021

KSC065-100623-
/O.CAN.KGLD.SV.W.0188.000000T0000Z-210810T0630Z/
Graham KS-
114 AM CDT Tue Aug 10 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GRAHAM COUNTY IS
CANCELLED...
        
The storm that prompted the warning has moved eastward into Phillips 
and Rooks counties. As a result, the warning for Graham county has 
been cancelled.

LAT...LON 3935 9970 3938 9974 3944 9976 3957 9975
      3957 9960 3933 9961 3933 9962
TIME...MOT...LOC 0610Z 298DEG 13KT 3970 9988 

$$

Vincent

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 9, 7:21 PM CDT	Special Weather Statement	GLD	Cheyenne	24 min
Aug 9, 7:30 PM CDT	Severe Thunderstorm Warning	GLD	Cheyenne	30 min
Aug 9, 7:55 PM CDT	Special Weather Statement	GLD	Cheyenne	35 min
Aug 9, 8:21 PM CDT	Special Weather Statement	GLD	Cheyenne	9 min
Aug 9, 8:31 PM CDT	Special Weather Statement	GLD	Cheyenne	44 min
Aug 9, 9:16 PM CDT	Special Weather Statement	GLD	Cheyenne	44 min
Aug 9, 11:32 PM CDT	Special Weather Statement	GLD	Norton	28 min
Aug 10, 12:01 AM CDT	Special Weather Statement	GLD	Norton	44 min
Aug 10, 12:19 AM CDT	Special Weather Statement	GLD	Graham	41 min
Aug 10, 1:03 AM CDT	Special Weather Statement	GLD	Norton	42 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.