Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 176, NWS Goodland, KS

August 7, 2021Greeley County, Wallace County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Aug 7, 2021, 3:12 PM MDT for Greeley County, Wallace County, Kansas. It was in force for 63 min. 2 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
Aug 7, 2021, 3:12 PM MDT (21:12 UTC)
Expired
Aug 7, 2021, 4:15 PM MDT
In force
63 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Damage threat
Considerable
Hail
1.75 in
Wind
60.0 mph

Counties Greeley County, KS, Wallace County, KS

The radar

The Goodland radar (KGLD), 72 km from the middle of the area, began a volume at 21:14 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
Aug 7, 3:18 PM MDTHAIL 0.8810 S Sharon Springs, KSUP TO NICKEL SIZED HAIL REPORTED.
Aug 7, 4:00 PM MDTHAIL 19 Sse Sharon Springs, KSDIME TO QUARTER SIZED HAIL HAD JUST FINISHED AT TIME OF REPORT.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 7, 3:01 PM MDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Denver, CO (KDNR), launched 12:00Z, 9.2 hours before the alert went out and 181 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 2021-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 90 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 2021-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 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
90 J/kg
Mixed-layer CIN
-282 J/kg
Mixed-layer LCL
2495 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
114 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

585 
WUUS53 KGLD 072112
SVRGLD
KSC071-199-072215-
/O.NEW.KGLD.SV.W.0176.210807T2112Z-210807T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
312 PM MDT Sat Aug 7 2021

The National Weather Service in Goodland has issued a

* Severe Thunderstorm Warning for...
  Wallace County in west central Kansas...
  Northern Greeley County in west central Kansas...

* Until 415 PM MDT.

* At 312 PM MDT, a severe thunderstorm was located 11 miles south of
  Sharon Springs, moving northeast at 25 mph.

  HAZARD...Golf ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Sharon Springs and Wallace.

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 3856 10188 3868 10205 3889 10204 3913 10148
      3870 10149 3870 10157 3856 10157
TIME...MOT...LOC 2112Z 223DEG 21KT 3872 10176 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Lundquist
5 follow-up statements
811 
WWUS53 KGLD 072121
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
321 PM MDT Sat Aug 7 2021

KSC071-199-072215-
/O.CON.KGLD.SV.W.0176.000000T0000Z-210807T2215Z/
Wallace KS-Greeley KS-
321 PM MDT Sat Aug 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM MDT
FOR WALLACE AND NORTHERN GREELEY COUNTIES...

At 321 PM MDT, a severe thunderstorm was located 11 miles south of
Sharon Springs, moving northeast at 20 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...
Sharon Springs, Weskan and Wallace. 

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 3856 10188 3868 10205 3889 10204 3913 10148
      3870 10149 3870 10157 3856 10157
TIME...MOT...LOC 2121Z 230DEG 18KT 3872 10176 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Lundquist
959 
WWUS53 KGLD 072135
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
335 PM MDT Sat Aug 7 2021

KSC071-199-072215-
/O.CON.KGLD.SV.W.0176.000000T0000Z-210807T2215Z/
Wallace KS-Greeley KS-
335 PM MDT Sat Aug 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM MDT
FOR WALLACE AND NORTHEASTERN GREELEY COUNTIES...

At 334 PM MDT, a severe thunderstorm was located 8 miles southeast of
Sharon Springs, moving northeast at 20 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...
Sharon Springs, Weskan and Wallace. 

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 3860 10180 3870 10198 3885 10201 3913 10148
      3870 10149 3870 10157 3860 10157
TIME...MOT...LOC 2134Z 231DEG 19KT 3878 10169 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Lundquist
541 
WWUS53 KGLD 072143
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
343 PM MDT Sat Aug 7 2021

KSC071-199-072215-
/O.CON.KGLD.SV.W.0176.000000T0000Z-210807T2215Z/
Wallace KS-Greeley KS-
343 PM MDT Sat Aug 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM MDT
FOR SOUTHEASTERN WALLACE AND NORTHEASTERN GREELEY COUNTIES...

At 342 PM MDT, a severe thunderstorm was located 8 miles southeast of
Sharon Springs, moving northeast 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...
Sharon Springs, Weskan and Wallace. 

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 3862 10178 3871 10194 3886 10198 3913 10148
      3870 10149 3870 10157 3860 10157
TIME...MOT...LOC 2142Z 219DEG 12KT 3878 10169 

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

$$

Lundquist
576 
WWUS53 KGLD 072155
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
355 PM MDT Sat Aug 7 2021

KSC071-072205-
/O.CAN.KGLD.SV.W.0176.000000T0000Z-210807T2215Z/
Greeley KS-
355 PM MDT Sat Aug 7 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN GREELEY COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area.  Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 800 PM MDT for
west central Kansas.

LAT...LON 3875 10172 3887 10175 3906 10149 3870 10149
      3870 10157
TIME...MOT...LOC 2155Z 223DEG 21KT 3884 10162 

$$

KSC199-072215-
/O.CON.KGLD.SV.W.0176.000000T0000Z-210807T2215Z/
Wallace KS-
355 PM MDT Sat Aug 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM MDT
FOR SOUTHEASTERN WALLACE COUNTY...

At 355 PM MDT, a severe thunderstorm was located 5 miles south of
Wallace, or 8 miles southeast of Sharon Springs, moving northeast 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...
Wallace.

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 3875 10172 3887 10175 3906 10149 3870 10149
      3870 10157
TIME...MOT...LOC 2155Z 223DEG 21KT 3884 10162 

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

$$

Lundquist
376 
WWUS53 KGLD 072218
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
418 PM MDT Sat Aug 7 2021

KSC199-072227-
/O.EXP.KGLD.SV.W.0176.000000T0000Z-210807T2215Z/
Wallace KS-
418 PM MDT Sat Aug 7 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN WALLACE COUNTY
HAS EXPIRED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been allowed to expire.

A Severe Thunderstorm Watch remains in effect until 800 PM MDT for
west central Kansas.

LAT...LON 3875 10172 3887 10175 3906 10149 3870 10149
      3870 10157
TIME...MOT...LOC 2217Z 223DEG 21KT 3893 10151 

$$

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, 8:41 PM MDTSevere Thunderstorm Warning Considerable damage threatGLDSherman34 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, 3:29 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.