Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 10, NWS Goodland, KS

April 27, 2021Cheyenne County, Rawlins County, Sherman County, Kansas; Dundy County, Nebraska

NWS Goodland, KS issued this severe thunderstorm warning at Apr 27, 2021, 8:21 PM CDT for Cheyenne County, Rawlins County, Sherman County, Kansas; Dundy County, Nebraska. It was in force for 39 min. 9 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: Apr 27, 2021, 8:21 PM CDT (01:21 UTC)
Expired: Apr 27, 2021, 9:00 PM CDT
In force: 39 min
Issued by: NWS Goodland, KS
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Cheyenne County, KS, Rawlins County, KS, Sherman County, KS, Dundy County, NE

The radar

The Goodland radar (KGLD), 57 km from the middle of the area, began a volume at 01:23 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
Apr 27, 8:25 PM CDT	HAIL 1	Saint Francis, KS	REPORT FROM MPING: QUARTER (1.00 IN.).
Apr 27, 8:28 PM CDT	HAIL 0.75	2 W Wheeler, KS	REPORT FROM MPING: DIME (0.75 IN.).
Apr 27, 8:30 PM CDT	HAIL 0.75	Bird City, KS	UP TO PENNY SIZED HAIL REPORTED. JUST BEFORE THE HAIL BEGAN, WINDS WERE ESTIMATED TO BE 45-50 MPH.
Apr 27, 8:35 PM CDT	HAIL 1	10 N Bird City, KS	FACEBOOK REPORT OF QUARTER SIZE HAIL.
Apr 27, 8:35 PM CDT	HAIL 1	6 N Saint Francis, KS	REPORTED VIA SOCIAL MEDIA. MOST OF THE GROUND WAS COVERED WITH HAIL.
Apr 27, 8:42 PM CDT	TSTM WND GST 60	Mcdonald, KS	TRAINED SPOTTER ESTIMATED 50-60 MPH WINDS THAT ALMOST KNOCKED THEM OVER.
Apr 27, 8:42 PM CDT	HAIL 0.7	Mcdonald, KS	DIME SIZED HAIL REPORTED.
Apr 27, 8:44 PM CDT	TSTM WND GST 53	3 W Bird City, KS	MESONET STATION DW4654 BIRD CITY.
Apr 27, 9:09 PM CDT	HAIL 0.88	4 Sw Blakeman, KS	CALLER REPORTED PEA TO NICKEL SIZED HAIL.

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.

Issued	Product	Office	Lasted
Apr 27, 6:36 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 1.4 hours before the alert went out and 155 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: 26 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 1024 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: -2 m²/s²
0-3 km storm-relative helicity: 56 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

198 
WUUS53 KGLD 280121
SVRGLD
KSC023-153-181-NEC057-280200-
/O.NEW.KGLD.SV.W.0010.210428T0121Z-210428T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
721 PM MDT Tue Apr 27 2021

The National Weather Service in Goodland has issued a

* Severe Thunderstorm Warning for...
  Cheyenne County in northwestern Kansas...
  Western Rawlins County in northwestern Kansas...
  Northeastern Sherman County in northwestern Kansas...
  Southeastern Dundy County in southwestern Nebraska...

* Until 800 PM MDT/900 PM CDT/.

* At 721 PM MDT/821 PM CDT/, a severe thunderstorm was located near
  St. Francis, moving northeast at 35 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...
  Benkelman.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.

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 4002 10132 4000 10132 4000 10130 3980 10096
      3957 10132 3957 10139 3952 10139 3949 10144
      3988 10205 4025 10172
TIME...MOT...LOC 0121Z 231DEG 31KT 3981 10178 

HAIL...1.25IN
WIND...60MPH
 
$$

Lockhart

1 follow-up statement

771 
WWUS53 KGLD 280201
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
801 PM MDT Tue Apr 27 2021

KSC023-153-181-NEC057-280211-
/O.EXP.KGLD.SV.W.0010.000000T0000Z-210428T0200Z/
Cheyenne KS-Rawlins KS-Sherman KS-Dundy NE-
801 PM MDT Tue Apr 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR CHEYENNE...WESTERN RAWLINS...
NORTHEASTERN SHERMAN COUNTIES IN NORTHWESTERN KANSAS AND SOUTHEASTERN
DUNDY COUNTIES IN SOUTHWESTERN NEBRASKA HAS EXPIRED...
                
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 has been allowed to expire.

A Severe Thunderstorm Watch remains in effect until 1100 PM
MDT/midnight CDT/ for northwestern Kansas...and southwestern
Nebraska.

LAT...LON 4002 10132 4000 10132 4000 10130 3980 10096
      3957 10132 3957 10139 3952 10139 3949 10144
      3988 10205 4025 10172
TIME...MOT...LOC 0201Z 231DEG 31KT 4002 10145 

$$

Lockhart

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 7:23 PM CDT	Severe Thunderstorm Warning	GLD	Cheyenne, Sherman	67 min
Apr 27, 7:40 PM CDT	Special Weather Statement	GLD	Cheyenne, Sherman	65 min
Apr 27, 7:55 PM CDT	Severe Thunderstorm Warning	GLD	Cheyenne	50 min
Apr 27, 8:59 PM CDT	Special Weather Statement	GLD	Rawlins	16 min
Apr 27, 9:26 PM CDT	Special Weather Statement	GLD	Decatur, Rawlins	49 min
Apr 27, 10:33 PM CDT	Special Weather Statement	GLD	Decatur	42 min
Apr 27, 8:50 PM CDT	Special Weather Statement	GLD	Dundy	40 min

Nearby

Severe Thunderstorm Warnings in Kansas, 2021 Severe Thunderstorm Warnings in Nebraska, 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.