Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 193, NWS Goodland, KS

August 12, 2021Sherman County, Thomas County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Aug 12, 2021, 6:10 PM MDT for Sherman County, Thomas County, Kansas. It was in force for 35 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 12, 2021, 6:10 PM MDT (00:10 UTC)
Expired
Aug 12, 2021, 6:45 PM MDT
In force
35 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Sherman County, KS, Thomas County, KS

The radar

The Goodland radar (KGLD), 32 km from the middle of the area, began a volume at 00:09 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, 0.2 hours before the alert went out and 174 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 2021-08-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 616 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 2021-08-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 1 square meters per square second.1939Sfc1 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
616 J/kg
Mixed-layer CIN
-65 J/kg
Mixed-layer LCL
2322 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
1 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

382 
WUUS53 KGLD 130010
SVRGLD
KSC181-193-130045-
/O.NEW.KGLD.SV.W.0193.210813T0010Z-210813T0045Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
610 PM MDT Thu Aug 12 2021

The National Weather Service in Goodland has issued a

* Severe Thunderstorm Warning for...
  Western Thomas County in northwestern Kansas...
  Eastern Sherman County in northwestern Kansas...

* Until 645 PM MDT/745 PM CDT/.

* At 610 PM MDT/710 PM CDT/, a severe thunderstorm was located 9
  miles southeast of Brewster, moving northwest at 30 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.

* This severe thunderstorm will be near...
  Brewster around 730 PM CDT.

This includes Interstate 70 in Kansas between mile markers 28 and 51.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3914 10142 3950 10163 3956 10113 3913 10108
TIME...MOT...LOC 0010Z 150DEG 28KT 3924 10130 

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

$$

024
1 follow-up statement
310 
WWUS53 KGLD 130036
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
636 PM MDT Thu Aug 12 2021

KSC181-193-130046-
/O.EXP.KGLD.SV.W.0193.000000T0000Z-210813T0045Z/
Thomas KS-Sherman KS-
636 PM MDT Thu Aug 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR WESTERN THOMAS AND EASTERN
SHERMAN COUNTIES WILL EXPIRE AT 645 PM MDT/745 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 gusty
winds are still possible with this thunderstorm.

LAT...LON 3914 10142 3950 10163 3956 10113 3913 10108
TIME...MOT...LOC 0036Z 150DEG 28KT 3940 10142 

$$

024

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 12, 6:05 PM MDTSpecial Weather StatementGLDThomas25 min
Aug 12, 6:11 PM MDTSevere Thunderstorm WarningGLDSheridan, Thomas64 min
Aug 12, 7:58 PM MDTSpecial Weather StatementGLDDecatur32 min
Aug 12, 8:10 PM MDTSpecial Weather StatementGLDGove35 min
Aug 12, 8:23 PM MDTSpecial Weather StatementGLDGove37 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.