Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 18, NWS Goodland, KS

May 2, 2021Graham County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at May 2, 2021, 7:54 PM CDT for Graham County, Kansas. It was in force for 96 min. 3 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
May 2, 2021, 7:54 PM CDT (00:54 UTC)
Expired
May 2, 2021, 9:30 PM CDT
In force
96 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Hail
0.75 in
Wind
70.0 mph

County Graham County, KS

The radar

The Goodland radar (KGLD), 152 km from the middle of the area, began a volume at 00:56 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
May 2, 8:39 PM CDTTSTM WND GST 804 Wnw Nicodemus, KSDELAYED REPORT VIA WEATHER UNDERGROUND. MESONET STATION KKSBOGUE1 MEASURED A THUNDERSTORM WIND GUST OF 80 MPH.
May 2, 8:45 PM CDTTSTM WND GST 641 E Hill City, KSASOS STATION KHLC HILL CITY MEASURED A GUST OF 64 MPH.
May 2, 9:15 PM CDTTSTM WND GST 601 E Hill City, KSASOS STATION KHLC HILL CITY MEASURED A THUNDERSTORM WIND GUST OF 60 MPH.

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
May 2, 5:41 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 0.9 hours before the alert went out and 171 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, Dodge City, at 00:00Z on 2021-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1069 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, Dodge City, at 00:00Z on 2021-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 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
1069 J/kg
Mixed-layer CIN
-146 J/kg
Mixed-layer LCL
1754 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
394 m²/s²
Significant tornado parameter
0.1
Supercell composite
12.1

Open this sounding in Storm Lab

The text

As transmitted.

037 
WUUS53 KGLD 030054
SVRGLD
KSC065-030230-
/O.NEW.KGLD.SV.W.0018.210503T0054Z-210503T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
754 PM CDT Sun May 2 2021

The National Weather Service in Goodland has issued a

* Severe Thunderstorm Warning for...
  Graham County in northwestern Kansas...

* Until 930 PM CDT.

* At 754 PM CDT, severe thunderstorms were located along a line
  extending from 7 miles southeast of Dresden to 7 miles southeast of
  Oakley, moving east at 40 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

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

* These severe thunderstorms will remain over mainly rural areas of
  Graham County, including the following locations... Saint Peter,
  Penokee and Studley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

These thunderstorms 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.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3913 10016 3957 10016 3957 9960 3913 9961
TIME...MOT...LOC 0054Z 267DEG 35KT 3956 10032 3903 10079 

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

Lundquist
3 follow-up statements
892 
WWUS53 KGLD 030126
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
826 PM CDT Sun May 2 2021

KSC065-030230-
/O.CON.KGLD.SV.W.0018.000000T0000Z-210503T0230Z/
Graham KS-
826 PM CDT Sun May 2 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT
FOR GRAHAM COUNTY...

At 825 PM CDT, severe thunderstorms were located along a line
extending from 3 miles east of Lenora to 6 miles north of Park,
moving east at 30 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...
Hill City, Morland, Bogue, Nicodemus, Penokee, Saint Peter and
Studley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

These thunderstorms 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.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3913 10016 3957 10016 3957 9960 3913 9961
TIME...MOT...LOC 0125Z 279DEG 26KT 3960 9994 3921 10035 

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

Lundquist
911 
WWUS53 KGLD 030149
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
849 PM CDT Sun May 2 2021

KSC065-030230-
/O.CON.KGLD.SV.W.0018.000000T0000Z-210503T0230Z/
Graham KS-
849 PM CDT Sun May 2 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT
FOR GRAHAM COUNTY...

At 849 PM CDT, severe thunderstorms were located along a line
extending from 6 miles southwest of Logan to 7 miles northeast of
Quinter, moving east at 35 mph.

HAZARD...64 mph wind gusts.

SOURCE...Weather INSTRUMENT at Hill City.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Hill City, Morland, Bogue, Nicodemus, Penokee, Saint Peter and
Studley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3913 10016 3957 10016 3957 9960 3913 9961
TIME...MOT...LOC 0149Z 273DEG 31KT 3961 9966 3915 10015 

HAIL...<.75IN
WIND...60MPH
 
$$

Lundquist
904 
WWUS53 KGLD 030205
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
905 PM CDT Sun May 2 2021

KSC065-030230-
/O.CON.KGLD.SV.W.0018.000000T0000Z-210503T0230Z/
Graham KS-
905 PM CDT Sun May 2 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT
FOR GRAHAM COUNTY...

At 905 PM CDT, severe thunderstorms were located along a line
extending from 4 miles north of Bogue to 7 miles north of Voda,
moving east at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Weather Instrument at Hill City.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Hill City, Morland, Bogue, Nicodemus, Penokee and Saint Peter. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3913 10016 3934 10014 3957 9977 3957 9960
      3913 9961
TIME...MOT...LOC 0205Z 291DEG 28KT 3943 9969 3915 9997 

HAIL...<.75IN
WIND...60MPH
 
$$

Lundquist

The office that day

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

IssuedProductOfficeCountiesLasted
May 2, 7:04 PM CDTFlash Flood WarningGLDThomas78 min
May 2, 7:12 PM CDTSpecial Weather StatementGLDDecatur, Gove, Graham, Logan, Norton, Sheridan and 1 more63 min
May 2, 7:22 PM CDTSevere Thunderstorm WarningGLDLogan, Thomas, Wichita83 min
May 2, 7:33 PM CDTSevere Thunderstorm WarningGLDDecatur, Norton72 min
May 2, 7:45 PM CDTSevere Thunderstorm WarningGLDGove, Sheridan90 min
May 2, 8:06 PM CDTSpecial Weather StatementGLDWichita9 min
May 2, 8:43 PM CDTSevere Thunderstorm WarningGLDNorton47 min
May 2, 9:14 PM CDTSevere Thunderstorm WarningGLDGove46 min
May 2, 9:23 PM CDTSevere Thunderstorm WarningGLDGraham38 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.