Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 222, NWS Goodland, KS

August 26, 20214 counties in Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Aug 26, 2021, 7:30 PM CDT for 4 counties in Kansas. It was in force for 60 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 26, 2021, 7:30 PM CDT (00:30 UTC)
Expired: Aug 26, 2021, 8:30 PM CDT
In force: 60 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Damage threat: Considerable
Hail: 0.75 in
Wind: 70.0 mph

Counties Cheyenne County, KS, Rawlins County, KS, Sherman County, KS, Thomas County, KS

The radar

The Goodland radar (KGLD), 60 km from the middle of the area, began a volume at 00:31 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

Time	Report	Where	Remark
Aug 26, 7:47 PM CDT	TSTM WND GST 70	Mcdonald, KS	SPOTTER ESTIMATED 70MPH WIND GUST.
Aug 26, 8:00 PM CDT	TSTM WND GST 65	2 Nnw Atwood, KS	MEASURED WIND GUST AT THE ATWOOD-RAWLINS CITY/COUNTY AIRPORT.

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

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 0.5 hours before the alert went out and 161 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2762 J/kg
Mixed-layer CIN: -93 J/kg
Mixed-layer LCL: 1515 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 134 m²/s²
0-3 km storm-relative helicity: 383 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 29.2

Open this sounding in Storm Lab

The text

As transmitted.

452 
WUUS53 KGLD 270030
SVRGLD
KSC023-153-181-193-270130-
/O.NEW.KGLD.SV.W.0222.210827T0030Z-210827T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
630 PM MDT Thu Aug 26 2021

The National Weather Service in Goodland has issued a

* Severe Thunderstorm Warning for...
  Southeastern Cheyenne County in northwestern Kansas...
  Northwestern Thomas County in northwestern Kansas...
  Western Rawlins County in northwestern Kansas...
  Northeastern Sherman County in northwestern Kansas...

* Until 730 PM MDT/830 PM CDT/.

* At 630 PM MDT/730 PM CDT/, a severe thunderstorm was located 6
  miles southeast of Bird City, or 18 miles southeast of St. Francis,
  moving northeast at 25 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  McDonald and Atwood.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This thunderstorm will produce damaging winds resulting in areas of
near zero visibility in blowing dirt. Use extreme caution if you must
travel and be alert for rapidly changing visibility.

&&

LAT...LON 3997 10102 3957 10088 3948 10155 3980 10165
TIME...MOT...LOC 0030Z 239DEG 22KT 3966 10148 

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

$$

024

2 follow-up statements

665 
WWUS53 KGLD 270056
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
756 PM CDT Thu Aug 26 2021

KSC181-270105-
/O.CAN.KGLD.SV.W.0222.000000T0000Z-210827T0130Z/
Sherman KS-
756 PM CDT Thu Aug 26 2021

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

LAT...LON 3997 10102 3957 10088 3951 10139 3957 10139
      3957 10154 3981 10161
TIME...MOT...LOC 0055Z 239DEG 22KT 3974 10130 

$$

KSC023-153-193-270130-
/O.CON.KGLD.SV.W.0222.000000T0000Z-210827T0130Z/
Cheyenne KS-Thomas KS-Rawlins KS-
756 PM CDT Thu Aug 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR SOUTHEASTERN CHEYENNE...NORTHWESTERN THOMAS AND WESTERN RAWLINS
COUNTIES IN NORTHWESTERN KANSAS...

At 755 PM CDT, a severe thunderstorm was located 4 miles southeast of
McDonald, or 14 miles west of Atwood, moving northeast at 25 mph.

HAZARD...70 mph wind gusts and penny size hail.

SOURCE...Trained weather spotters.

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

Locations impacted include...
Atwood, Bird City, McDonald, Blakeman and Beardsley. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This thunderstorm will produce damaging winds resulting in areas of
near zero visibility in blowing dirt. Use extreme caution if you must
travel and be alert for rapidly changing visibility.

&&

LAT...LON 3997 10102 3957 10088 3951 10139 3957 10139
      3957 10154 3981 10161
TIME...MOT...LOC 0055Z 239DEG 22KT 3974 10130 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH

$$

024

671 
WWUS53 KGLD 270114
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
814 PM CDT Thu Aug 26 2021

KSC023-193-270123-
/O.CAN.KGLD.SV.W.0222.000000T0000Z-210827T0130Z/
Cheyenne KS-Thomas KS-
814 PM CDT Thu Aug 26 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CHEYENNE AND
NORTHWESTERN THOMAS COUNTIES IN NORTHWESTERN KANSAS IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3997 10102 3957 10088 3957 10141 3986 10141
TIME...MOT...LOC 0113Z 246DEG 22KT 3976 10115 

$$

KSC153-270130-
/O.CON.KGLD.SV.W.0222.000000T0000Z-210827T0130Z/
Rawlins KS-
814 PM CDT Thu Aug 26 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR WESTERN RAWLINS COUNTY...

At 813 PM CDT, a severe thunderstorm was located 6 miles southwest of
Atwood, moving northeast at 25 mph.

HAZARD...70 mph wind gusts and penny size hail.

SOURCE...Trained weather spotters.

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

Locations impacted include...
Atwood, McDonald, Blakeman and Beardsley. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This thunderstorm will produce damaging winds resulting in areas of
near zero visibility in blowing dirt. Use extreme caution if you must
travel and be alert for rapidly changing visibility.

&&

LAT...LON 3997 10102 3957 10088 3957 10141 3986 10141
TIME...MOT...LOC 0113Z 246DEG 22KT 3976 10115 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...OBSERVED
MAX WIND GUST...70 MPH

$$

024

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 26, 7:02 PM CDT	Special Weather Statement	GLD	Thomas	28 min
Aug 26, 7:07 PM CDT	Special Weather Statement	GLD	Sherman	23 min
Aug 26, 7:13 PM CDT	Special Weather Statement	GLD	Wallace	32 min
Aug 26, 7:26 PM CDT	Special Weather Statement	GLD	Rawlins	34 min
Aug 26, 8:05 PM CDT	Severe Thunderstorm Warning Considerable damage threat	GLD	Decatur, Rawlins	40 min
Aug 26, 8:17 PM CDT	Severe Thunderstorm Warning Considerable damage threat	GLD	Decatur, Rawlins	31 min
Aug 27, 4:42 PM CDT	Special Weather Statement	GLD	Sheridan	18 min
Aug 27, 5:21 PM CDT	Special Weather Statement	GLD	Gove	24 min
Aug 27, 6:07 PM CDT	Special Weather Statement	GLD	Gove	23 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2021 Every 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.