Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 143, NWS Goodland, KS

July 4, 20214 counties in Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Jul 4, 2021, 4:26 PM CDT for 4 counties in 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
Jul 4, 2021, 4:26 PM CDT (21:26 UTC)
Expired
Jul 4, 2021, 5:00 PM CDT
In force
34 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

Counties Decatur County, KS, Graham County, KS, Norton County, KS, Sheridan County, KS

The radar

The Goodland radar (KGLD), 132 km from the middle of the area, began a volume at 21:29 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 watch it was issued in

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

IssuedProductOfficeLasted
Jul 4, 4:01 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 12:00Z, 9.4 hours before the alert went out and 177 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, N. Platte/Lee Bi, NE at 12:00Z on 2021-07-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 524 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, N. Platte/Lee Bi, NE at 12:00Z on 2021-07-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 84 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
524 J/kg
Mixed-layer CIN
-290 J/kg
Mixed-layer LCL
1478 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
84 m²/s²
0-3 km storm-relative helicity
119 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

953 
WUUS53 KGLD 042126
SVRGLD
KSC039-065-137-179-042200-
/O.NEW.KGLD.SV.W.0143.210704T2126Z-210704T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
426 PM CDT Sun Jul 4 2021

The National Weather Service in Goodland has issued a

* Severe Thunderstorm Warning for...
  Southwestern Norton County in northwestern Kansas...
  Northeastern Sheridan County in northwestern Kansas...
  Southeastern Decatur County in northwestern Kansas...
  Northwestern Graham County in northwestern Kansas...

* Until 500 PM CDT.

* At 426 PM CDT, a severe thunderstorm was located 7 miles southeast
  of Jennings, or 20 miles southwest of Norton, moving south at 5
  mph.

  HAZARD...Ping pong 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.

* This severe thunderstorm will remain over mainly rural areas of
  southwestern Norton, northeastern Sheridan, southeastern Decatur
  and northwestern Graham Counties, including the following
  locations... New Almelo.

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 3970 10028 3970 10004 3938 9998 3938 10034
TIME...MOT...LOC 2126Z 010DEG 5KT 3962 10017 

HAIL...1.50IN
WIND...60MPH
 
$$

JN
1 follow-up statement
297 
WWUS53 KGLD 042141
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
441 PM CDT Sun Jul 4 2021

KSC039-065-137-179-042200-
/O.CON.KGLD.SV.W.0143.000000T0000Z-210704T2200Z/
Norton KS-Sheridan KS-Decatur KS-Graham KS-
441 PM CDT Sun Jul 4 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 500 PM CDT
FOR SOUTHWESTERN NORTON...NORTHEASTERN SHERIDAN...SOUTHEASTERN
DECATUR AND NORTHWESTERN GRAHAM COUNTIES...

At 440 PM CDT, a severe thunderstorm was located 8 miles southeast of
Jennings, or 22 miles northeast of Hoxie, moving south at 5 mph.

HAZARD...Ping pong 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...
New Almelo.

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 3966 10028 3966 10004 3938 9998 3938 10034
TIME...MOT...LOC 2140Z 010DEG 5KT 3960 10017 

HAIL...1.50IN
WIND...60MPH
 
$$

JN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 3, 9:03 PM CDTSpecial Weather StatementGLDSherman27 min
Jul 3, 9:27 PM CDTSpecial Weather StatementGLDSherman33 min
Jul 4, 3:47 PM CDTSpecial Weather StatementGLDGraham28 min
Jul 4, 4:10 PM CDTSevere Thunderstorm WarningGLDGove, Graham, Sheridan35 min
Jul 4, 4:39 PM CDTSevere Thunderstorm WarningGLDGove, Graham, Sheridan36 min
Jul 4, 4:58 PM CDTFlash Flood WarningGLDGove, Graham, Sheridan2 hr
Jul 4, 4:58 PM CDTSevere Thunderstorm WarningGLDGraham, Sheridan32 min
Jul 4, 5:15 PM CDTSevere Thunderstorm WarningGLDGove, Logan, Sheridan60 min
Jul 4, 5:30 PM CDTSpecial Weather StatementGLDSheridan30 min
Jul 4, 6:09 PM CDTSpecial Weather StatementGLDLogan36 min
Jul 4, 6:15 PM CDTSpecial Weather StatementGLDGove30 min
Jul 4, 6:34 PM CDTSpecial Weather StatementGLDRawlins26 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.