Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 173, NWS Goodland, KS

August 6, 2021Sherman County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Aug 6, 2021, 8:41 PM MDT for Sherman County, Kansas. It was in force for 34 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
Aug 6, 2021, 8:41 PM MDT (02:41 UTC)
Expired
Aug 6, 2021, 9:15 PM MDT
In force
34 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Damage threat
Considerable
Hail
0.75 in
Wind
70.0 mph

County Sherman County, KS

The radar

The Goodland radar (KGLD), 13 km from the middle of the area, began a volume at 02:41 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

Denver, CO (KDNR), launched 00:00Z, 2.7 hours before the alert went out and 139 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 00:00Z on 2021-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 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 00:00Z on 2021-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 square meters per square second.19395878Sfc1 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
4 J/kg
Mixed-layer CIN
-256 J/kg
Mixed-layer LCL
3329 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

323 
WUUS53 KGLD 070241
SVRGLD
KSC181-070315-
/O.NEW.KGLD.SV.W.0173.210807T0241Z-210807T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
841 PM MDT Fri Aug 6 2021

The National Weather Service in Goodland has issued a

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

* Until 915 PM MDT.

* At 840 PM MDT, a severe thunderstorm was located 7 miles south of
  Kanorado, moving east at 45 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Measured at the Burlington airport.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* This severe thunderstorm will be near...
  Ruleton around 855 PM MDT.

# 

This includes Interstate 70 in Kansas between mile markers 0 and 22.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3937 10163 3915 10164 3915 10205 3936 10205
TIME...MOT...LOC 0240Z 268DEG 39KT 3923 10206 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Lundquist
2 follow-up statements
654 
WWUS53 KGLD 070252
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
852 PM MDT Fri Aug 6 2021

KSC181-070315-
/O.CON.KGLD.SV.W.0173.000000T0000Z-210807T0315Z/
Sherman KS-
852 PM MDT Fri Aug 6 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM MDT
FOR SOUTHWESTERN SHERMAN COUNTY...

At 852 PM MDT, a severe thunderstorm was located 7 miles south of
Ruleton, moving east at 45 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

This severe thunderstorm will remain over mainly rural areas of
southwestern Sherman County.

This includes Interstate 70 in Kansas between mile markers 0 and 22.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3937 10163 3915 10164 3915 10205 3936 10205
TIME...MOT...LOC 0252Z 268DEG 39KT 3923 10188 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Lundquist
385 
WWUS53 KGLD 070308
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
908 PM MDT Fri Aug 6 2021

KSC181-070317-
/O.EXP.KGLD.SV.W.0173.000000T0000Z-210807T0315Z/
Sherman KS-
908 PM MDT Fri Aug 6 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN SHERMAN COUNTY
WILL EXPIRE AT 915 PM MDT...
                
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 gusty
winds are still possible with this thunderstorm.

LAT...LON 3937 10163 3915 10164 3915 10205 3936 10205
TIME...MOT...LOC 0307Z 268DEG 39KT 3923 10169 

$$

Lundquist

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 6, 7:15 PM MDTSpecial Weather StatementGLDCheyenne15 min
Aug 6, 7:36 PM MDTSpecial Weather StatementGLDCheyenne9 min
Aug 6, 7:47 PM MDTSpecial Weather StatementGLDCheyenne13 min
Aug 6, 8:37 PM MDTSpecial Weather StatementGLDSherman23 min
Aug 6, 8:49 PM MDTSpecial Weather StatementGLDCheyenne26 min
Aug 6, 8:55 PM MDTSpecial Weather StatementGLDSherman20 min
Aug 6, 9:31 PM MDTSpecial Weather StatementGLDThomas14 min
Aug 7, 4:30 AM MDTSpecial Weather StatementGLDNorton30 min
Aug 7, 2:44 PM MDTSpecial Weather StatementGLDGreeley31 min
Aug 7, 2:52 PM MDTSevere Thunderstorm Warning Considerable damage threatGLDGreeley, Wichita38 min
Aug 7, 3:12 PM MDTSevere Thunderstorm Warning Considerable damage threatGLDGreeley, Wallace63 min
Aug 7, 3:29 PM MDTSevere Thunderstorm Warning Considerable damage threatGLDWichita46 min
Aug 7, 4:08 PM MDTSpecial Weather StatementGLDGreeley22 min
Aug 7, 4:11 PM MDTSevere Thunderstorm WarningGLDLogan48 min
Aug 7, 4:17 PM MDTSevere Thunderstorm WarningGLDGreeley, Wichita43 min
Aug 7, 4:32 PM MDTSevere Thunderstorm Warning Considerable damage threatGLDLogan, Sheridan, Thomas58 min
Aug 7, 4:52 PM MDTSevere Thunderstorm WarningGLDGreeley38 min
Aug 7, 5:10 PM MDTSevere Thunderstorm WarningGLDWichita56 min
Aug 7, 5:24 PM MDTSevere Thunderstorm Warning Considerable damage threatGLDSheridan, Thomas56 min
Aug 7, 5:45 PM MDTSevere Thunderstorm Warning Considerable damage threatGLDDecatur, Sheridan75 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.