Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 151, NWS Goodland, KS

July 9, 2021Sherman County, Thomas County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Jul 9, 2021, 9:35 PM MDT for Sherman County, Thomas County, Kansas. It was in force for 40 min. 1 report 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
Jul 9, 2021, 9:35 PM MDT (03:35 UTC)
Expired
Jul 9, 2021, 10:15 PM MDT
In force
40 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

Counties Sherman County, KS, Thomas County, KS

The radar

The Goodland radar (KGLD), 46 km from the middle of the area, began a volume at 03:35 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
Jul 9, 10:15 PM MDTTSTM WND DMG11 Sse Brewster, KSA LARGE SWING-SET (MADE OUT OF REDWOOD) WAS SNAPPED IN HALF BY STRONG SSW WINDS BETWEEN 1000-1030 PM MDT.. 1100-1130 PM CDT.. 0400-0430 UTC. ADDITIONALLY, A HAY BALE TOSSED BY HIGH WINDS LANDED ON TOP OF A PARKED VEHICLE. WINDS SUDDENLY STRENGTHENED FROM THE S

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
Jul 9, 8:37 PM MDTSevere Thunderstorm WatchSPC4 hr

The nearest sounding before it

Denver, CO (KDNR), launched 00:00Z, 3.6 hours before the alert went out and 188 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 2021-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 807 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 2021-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 85 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
807 J/kg
Mixed-layer CIN
-117 J/kg
Mixed-layer LCL
3619 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
85 m²/s²
0-3 km storm-relative helicity
173 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted.

566 
WUUS53 KGLD 100335
SVRGLD
KSC181-193-100415-
/O.NEW.KGLD.SV.W.0151.210710T0335Z-210710T0415Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
935 PM MDT Fri Jul 9 2021

The National Weather Service in Goodland has issued a

* Severe Thunderstorm Warning for...
  Southern Thomas County in northwestern Kansas...
  East central Sherman County in northwestern Kansas...

* Until 1015 PM MDT/1115 PM CDT/.

* At 934 PM MDT/1034 PM CDT/, a severe thunderstorm was located near 
  Brewster, moving east at 20 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

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

* This severe thunderstorm will be near...
  Levant around 1050 PM CDT.

This includes Interstate 70 in Kansas between mile markers 32 and 68.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Wind damage with this storm will occur before any rain or lightning.
Do not wait for the sound of thunder before taking cover. SEEK
SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

&&

LAT...LON 3913 10126 3922 10151 3947 10141 3936 10080
      3913 10093
TIME...MOT...LOC 0334Z 289DEG 19KT 3934 10132 

HAIL...<.75IN
WIND...70MPH
 
$$

JN
1 follow-up statement
799 
WWUS53 KGLD 100349
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
1049 PM CDT Fri Jul 9 2021

KSC181-100359-
/O.CAN.KGLD.SV.W.0151.000000T0000Z-210710T0415Z/
Sherman KS-
1049 PM CDT Fri Jul 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL SHERMAN 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 200 AM CDT for
northwestern and west central Kansas.

LAT...LON 3913 10127 3918 10139 3947 10139 3936 10080
      3913 10093
TIME...MOT...LOC 0349Z 289DEG 19KT 3931 10122 

$$

KSC193-100415-
/O.CON.KGLD.SV.W.0151.000000T0000Z-210710T0415Z/
Thomas KS-
1049 PM CDT Fri Jul 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CDT
FOR SOUTHERN THOMAS COUNTY...

At 1049 PM CDT, a severe thunderstorm was located 4 miles south of
Levant, moving east at 20 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...
  Colby.

This includes Interstate 70 in Kansas between mile markers 36 and 68.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Wind damage with this storm will occur before any rain or lightning.
Do not wait for the sound of thunder before taking cover. SEEK
SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

&&

LAT...LON 3913 10127 3918 10139 3947 10139 3936 10080
      3913 10093
TIME...MOT...LOC 0349Z 289DEG 19KT 3931 10122 

HAIL...<.75IN
WIND...70MPH
 
$$

JN

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 9, 6:55 PM MDTSpecial Weather StatementGLDRawlins20 min
Jul 9, 8:38 PM MDTSpecial Weather StatementGLDSherman22 min
Jul 9, 9:25 PM MDTSpecial Weather StatementGLDThomas35 min
Jul 9, 9:39 PM MDTSevere Thunderstorm WarningGLDLogan, Wallace, Wichita36 min
Jul 9, 10:10 PM MDTSevere Thunderstorm WarningGLDGreeley, Wichita50 min
Jul 9, 10:23 PM MDTSpecial Weather StatementGLDGraham37 min
Jul 9, 10:25 PM MDTSpecial Weather StatementGLDSherman, Thomas35 min
Jul 9, 10:56 PM MDTSpecial Weather StatementGLDWichita34 min
Jul 9, 11:10 PM MDTSpecial Weather StatementGLDGove, Logan35 min
Jul 9, 11:33 PM MDTSpecial Weather StatementGLDGove, Greeley, Logan, Wallace, Wichita42 min
Jul 10, 12:23 AM MDTSpecial Weather StatementGLDCheyenne37 min
Jul 10, 12:43 AM MDTSpecial Weather StatementGLDDecatur47 min
Jul 10, 1:02 AM MDTSpecial Weather StatementGLDGreeley, Wichita28 min
Jul 10, 1:15 AM MDTSpecial Weather StatementGLDSheridan, Sherman, Thomas45 min
Jul 10, 1:21 AM MDTSpecial Weather StatementGLDDecatur, Norton39 min
Jul 10, 1:35 AM MDTSevere Thunderstorm WarningGLDNorton25 min
Jul 10, 1:47 AM MDTSpecial Weather StatementGLDGove, Logan, Wallace43 min
Jul 10, 1:59 AM MDTSpecial Weather StatementGLDGraham, Norton46 min
Jul 10, 2:07 AM MDTSevere Thunderstorm WarningGLDGove, Logan, Wallace, Wichita53 min
Jul 10, 2:12 AM MDTSevere Thunderstorm WarningGLDGove, Graham, Norton, Sheridan33 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.