Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 164, NWS Goodland, KS

July 18, 2021Sherman County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Jul 18, 2021, 12:33 PM MDT for Sherman County, Kansas. It was in force for 46 min. 11 reports 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
Jul 18, 2021, 12:33 PM MDT (18:33 UTC)
Expired
Jul 18, 2021, 1:19 PM MDT
In force
46 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Sherman County, KS

The radar

The Goodland radar (KGLD), 11 km from the middle of the area, began a volume at 18:36 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

TimeReportWhereRemark
Jul 18, 12:48 PM MDTHAIL 0.25Goodland, KSOFF DUTY EMPLOYEE REPORTS PEA SIZE HAIL.
Jul 18, 12:48 PM MDTHAIL 11 Wnw Goodland, KS
Jul 18, 12:51 PM MDTHAIL 1.251 Nw Goodland, KS
Jul 18, 12:52 PM MDTHAIL 1.25Goodland, KSREPORT FROM MPING: HALF DOLLAR (1.25 IN.).
Jul 18, 12:52 PM MDTHAIL 2Goodland, KSOFF DUTY EMPLOYEE REPORTS 2 INCH HAIL.
Jul 18, 12:53 PM MDTHAIL 1.75Goodland, KS
Jul 18, 12:55 PM MDTHAIL 1.251 Nnw Goodland, KS
Jul 18, 12:57 PM MDTHAIL 0.75Goodland, KSREPORT FROM MPING: DIME (0.75 IN.).
Jul 18, 12:59 PM MDTHAIL 1.25Goodland, KSREPORT FROM MPING: HALF DOLLAR (1.25 IN.).
Jul 18, 1:08 PM MDTHAIL 1.75Goodland, KSFACEBOOK VIDEO SHOWED GOLF BALL SIZE HAIL FALLING.
Jul 18, 1:17 PM MDTHAIL 1.51 Nnw Goodland, KSMEASURED 1.6 INCH HAIL WITH PHOTO.

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

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 6.6 hours before the alert went out and 137 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, Denver, CO at 12:00Z on 2021-07-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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, Denver, CO at 12:00Z on 2021-07-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 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
2 J/kg
Mixed-layer CIN
-396 J/kg
Mixed-layer LCL
2164 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

884 
WUUS53 KGLD 181833
SVRGLD
KSC181-181930-
/O.NEW.KGLD.SV.W.0164.210718T1833Z-210718T1930Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
1233 PM MDT Sun Jul 18 2021

The National Weather Service in Goodland has issued a

* Severe Thunderstorm Warning for...
  Central Sherman County in northwestern Kansas...

* Until 130 PM MDT.

* At 1233 PM MDT, a severe thunderstorm was located near Ruleton, and
  is nearly stationary.

  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...
  Goodland.

This includes Interstate 70 in Kansas between mile markers 7 and 22.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3924 10193 3944 10191 3945 10161 3919 10164
TIME...MOT...LOC 1833Z 277DEG 3KT 3934 10184 

HAIL...1.00IN
WIND...60MPH
 
$$

Lundquist
6 follow-up statements
045 
WWUS53 KGLD 181841
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
1241 PM MDT Sun Jul 18 2021

KSC181-181930-
/O.CON.KGLD.SV.W.0164.000000T0000Z-210718T1930Z/
Sherman KS-
1241 PM MDT Sun Jul 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM MDT
FOR CENTRAL SHERMAN COUNTY...

At 1241 PM MDT, a severe thunderstorm was located near Goodland, and
is nearly stationary.

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...
Goodland and Ruleton. 

This includes Interstate 70 in Kansas between mile markers 7 and 22.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3924 10193 3944 10191 3945 10161 3919 10164
TIME...MOT...LOC 1841Z 272DEG 4KT 3935 10178 

HAIL...1.00IN
WIND...60MPH
 
$$

Lundquist
959 
WWUS53 KGLD 181848
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
1248 PM MDT Sun Jul 18 2021

KSC181-181930-
/O.CON.KGLD.SV.W.0164.000000T0000Z-210718T1930Z/
Sherman KS-
1248 PM MDT Sun Jul 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM MDT
FOR CENTRAL SHERMAN COUNTY...

At 1247 PM MDT, a severe thunderstorm was located over Goodland,
moving east at 10 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Goodland and Ruleton. 

This includes Interstate 70 in Kansas between mile markers 9 and 22.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3924 10190 3944 10188 3945 10161 3919 10164
TIME...MOT...LOC 1847Z 269DEG 9KT 3935 10174 

HAIL...1.25IN
WIND...60MPH
 
$$

Lundquist
560 
WWUS53 KGLD 181854
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
1254 PM MDT Sun Jul 18 2021

KSC181-181930-
/O.CON.KGLD.SV.W.0164.000000T0000Z-210718T1930Z/
Sherman KS-
1254 PM MDT Sun Jul 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM MDT
FOR CENTRAL SHERMAN COUNTY...

At 1253 PM MDT, a severe thunderstorm was located over Goodland, and
is nearly stationary.

HAZARD...Two inch hail.

SOURCE...Trained weather spotters in Goodland.

IMPACT...People and animals outdoors will be injured. Expect damage 
         to roofs, siding, windows, and vehicles.

Locations impacted include...
Goodland.

This includes Interstate 70 in Kansas between mile markers 12 and 22.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3923 10185 3943 10182 3945 10161 3919 10164
TIME...MOT...LOC 1853Z 277DEG 3KT 3935 10173 

HAIL...2.00IN
WIND...<50MPH
 
$$

Lundquist
655 
WWUS53 KGLD 181900
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
100 PM MDT Sun Jul 18 2021

KSC181-181930-
/O.CON.KGLD.SV.W.0164.000000T0000Z-210718T1930Z/
Sherman KS-
100 PM MDT Sun Jul 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM MDT
FOR CENTRAL SHERMAN COUNTY...

At 100 PM MDT, a severe thunderstorm was located over Goodland, and
is nearly stationary.

HAZARD...Two inch hail.

SOURCE...Trained weather spotters in Goodland.

IMPACT...People and animals outdoors will be injured. Expect damage 
         to roofs, siding, windows, and vehicles.

Locations impacted include...
Goodland.

This includes Interstate 70 in Kansas between mile markers 14 and 22.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3923 10182 3943 10178 3945 10161 3919 10164
TIME...MOT...LOC 1900Z 271DEG 3KT 3936 10172 

HAIL...2.00IN
WIND...<50MPH
 
$$

Lundquist
291 
WWUS53 KGLD 181903
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
103 PM MDT Sun Jul 18 2021

KSC181-181930-
/O.CON.KGLD.SV.W.0164.000000T0000Z-210718T1930Z/
Sherman KS-
103 PM MDT Sun Jul 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM MDT
FOR CENTRAL SHERMAN COUNTY...

At 103 PM MDT, a severe thunderstorm was located over Goodland, and
is nearly stationary.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is expected.

Locations impacted include...
Goodland.

This includes Interstate 70 in Kansas between mile markers 14 and 22.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3927 10181 3943 10178 3945 10161 3922 10164
TIME...MOT...LOC 1903Z 277DEG 3KT 3936 10172 

HAIL...1.00IN
WIND...<50MPH
 
$$

Lundquist
926 
WWUS53 KGLD 181919
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
119 PM MDT Sun Jul 18 2021

KSC181-181928-
/O.CAN.KGLD.SV.W.0164.000000T0000Z-210718T1930Z/
Sherman KS-
119 PM MDT Sun Jul 18 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SHERMAN COUNTY IS
CANCELLED...
                
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 has been cancelled.  However gusty winds and
heavy rain are still possible with this thunderstorm.

LAT...LON 3927 10181 3943 10178 3945 10161 3922 10164
TIME...MOT...LOC 1914Z 277DEG 3KT 3936 10170 

$$

Lundquist

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 18, 7:27 AM MDTDense Fog AdvisoryGLDGraham, Norton93 min
Jul 18, 7:46 AM MDTSpecial Weather StatementGLDNorton14 min
Jul 18, 8:01 AM MDTSpecial Weather StatementGLDNorton14 min
Jul 18, 9:20 AM MDTSevere Thunderstorm WarningGLDDecatur55 min
Jul 18, 9:55 AM MDTSevere Thunderstorm WarningGLDDecatur50 min
Jul 18, 10:07 AM MDTSevere Thunderstorm WarningGLDNorton23 min
Jul 18, 10:23 AM MDTSpecial Weather StatementGLDGraham, Sheridan22 min
Jul 18, 10:45 AM MDTSpecial Weather StatementGLDGraham15 min
Jul 18, 10:49 AM MDTSpecial Weather StatementGLDDecatur26 min
Jul 18, 10:57 AM MDTSpecial Weather StatementGLDGraham18 min
Jul 18, 11:13 AM MDTSpecial Weather StatementGLDSheridan17 min
Jul 18, 11:15 AM MDTSpecial Weather StatementGLDGraham15 min
Jul 18, 11:24 AM MDTSpecial Weather StatementGLDGove21 min
Jul 18, 12:07 PM MDTSpecial Weather StatementGLDSherman23 min
Jul 18, 12:17 PM MDTSevere Thunderstorm WarningGLDSherman58 min
Jul 18, 12:32 PM MDTSpecial Weather StatementGLDWallace13 min
Jul 18, 12:40 PM MDTSevere Thunderstorm WarningGLDWallace46 min
Jul 18, 1:10 PM MDTSpecial Weather StatementGLDGreeley20 min
Jul 18, 1:18 PM MDTSevere Thunderstorm WarningGLDGreeley57 min
Jul 18, 1:47 PM MDTSevere Thunderstorm WarningGLDGreeley58 min
Jul 18, 2:19 PM MDTSpecial Weather StatementGLDCheyenne26 min
Jul 18, 2:50 PM MDTSpecial Weather StatementGLDCheyenne25 min
Jul 18, 3:01 PM MDTSevere Thunderstorm WarningGLDCheyenne44 min
Jul 18, 3:25 PM MDTSpecial Weather StatementGLDRawlins20 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.