Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 227, NWS Goodland, KS

August 30, 2021Decatur County, Kansas

NWS Goodland, KS issued this severe thunderstorm warning at Aug 30, 2021, 7:57 PM CDT for Decatur County, Kansas. It was in force for 33 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
Aug 30, 2021, 7:57 PM CDT (00:57 UTC)
Expired
Aug 30, 2021, 8:30 PM CDT
In force
33 min
Issued by
NWS Goodland, KS
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

County Decatur County, KS

The radar

The Goodland radar (KGLD), 109 km from the middle of the area, began a volume at 01:00 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
Aug 30, 8:15 PM CDTTSTM WND GST 511 Nnw Oberlin, KSAWOS STATION KOIN OBERLIN.

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, 1.0 hours before the alert went out and 157 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 00:00Z on 2021-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1819 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 00:00Z on 2021-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 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
1819 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
2084 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
300 m²/s²
Significant tornado parameter
0.0
Supercell composite
18.9

Open this sounding in Storm Lab

The text

As transmitted.

751 
WUUS53 KGLD 310057
SVRGLD
KSC039-310130-
/O.NEW.KGLD.SV.W.0227.210831T0057Z-210831T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Goodland KS
757 PM CDT Mon Aug 30 2021

The National Weather Service in Goodland has issued a

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

* Until 830 PM CDT.

* At 756 PM CDT, a severe thunderstorm was located 5 miles southwest
  of Oberlin, moving east at 30 mph.

  HAZARD...60 mph wind gusts and nickel size hail.

  SOURCE...Radar indicated.

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

* This severe thunderstorm will be near...
  Oberlin around 805 PM CDT.
  Dresden around 815 PM CDT.

Other locations in the path of this severe thunderstorm include
Jennings and Clayton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3961 10074 3992 10074 3989 10018 3957 10018
TIME...MOT...LOC 0056Z 279DEG 28KT 3975 10058 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

TT
2 follow-up statements
390 
WWUS53 KGLD 310114
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
814 PM CDT Mon Aug 30 2021

KSC039-310130-
/O.CON.KGLD.SV.W.0227.000000T0000Z-210831T0130Z/
Decatur KS-
814 PM CDT Mon Aug 30 2021

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

At 814 PM CDT, a severe thunderstorm was located 6 miles northwest of
Jennings, or 9 miles southeast of Oberlin, moving east at 30 mph.

HAZARD...60 mph wind gusts and nickel size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
  Jennings and Clayton.

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 3961 10074 3989 10065 3989 10018 3957 10018
TIME...MOT...LOC 0114Z 279DEG 28KT 3973 10040 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

TT
389 
WWUS53 KGLD 310128
SVSGLD

Severe Weather Statement
National Weather Service Goodland KS
828 PM CDT Mon Aug 30 2021

KSC039-310137-
/O.EXP.KGLD.SV.W.0227.000000T0000Z-210831T0130Z/
Decatur KS-
828 PM CDT Mon Aug 30 2021

...THE SEVERE THUNDERSTORM WARNING FOR DECATUR COUNTY WILL EXPIRE AT
830 PM CDT...
                
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 will be allowed to expire.

LAT...LON 3961 10074 3989 10065 3989 10018 3957 10018
TIME...MOT...LOC 0127Z 279DEG 28KT 3971 10028 

$$

TT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 30, 7:01 PM CDTSpecial Weather StatementGLDRawlins29 min
Aug 30, 7:18 PM CDTSevere Thunderstorm WarningGLDDecatur, Rawlins42 min
Aug 30, 7:28 PM CDTSpecial Weather StatementGLDSherman32 min
Aug 30, 8:04 PM CDTSpecial Weather StatementGLDSherman26 min
Aug 30, 8:27 PM CDTSpecial Weather StatementGLDDecatur33 min
Aug 30, 8:29 PM CDTSpecial Weather StatementGLDLogan31 min
Aug 30, 8:56 PM CDTSpecial Weather StatementGLDNorton34 min
Aug 30, 8:59 PM CDTSpecial Weather StatementGLDLogan31 min
Aug 30, 9:27 PM CDTSpecial Weather StatementGLDLogan33 min
Aug 30, 9:29 PM CDTSpecial Weather StatementGLDNorton31 min
Aug 30, 9:58 PM CDTSpecial Weather StatementGLDGove47 min
Aug 30, 10:45 PM CDTSpecial Weather StatementGLDGove45 min
Aug 31, 4:29 PM CDTSpecial Weather StatementGLDSherman16 min
Aug 31, 4:46 PM CDTSpecial Weather StatementGLDSherman14 min
Aug 31, 4:59 PM CDTSpecial Weather StatementGLDSherman16 min
Aug 31, 5:14 PM CDTSpecial Weather StatementGLDSherman16 min
Aug 31, 5:29 PM CDTSpecial Weather StatementGLDSherman16 min
Aug 31, 5:31 PM CDTSpecial Weather StatementGLDWallace14 min
Aug 31, 5:42 PM CDTSpecial Weather StatementGLDWallace18 min
Aug 31, 5:45 PM CDTSpecial Weather StatementGLDSherman15 min
Aug 31, 5:57 PM CDTSpecial Weather StatementGLDWallace18 min
Aug 31, 6:14 PM CDTSpecial Weather StatementGLDLogan16 min
Aug 31, 6:30 PM CDTSpecial Weather StatementGLDLogan15 min
Aug 31, 6:43 PM CDTSpecial Weather StatementGLDLogan17 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.