Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 74, NWS Springfield, MO

June 11, 2021Bourbon County, Kansas

NWS Springfield, MO issued this severe thunderstorm warning at Jun 11, 2021, 5:44 PM CDT for Bourbon County, Kansas. It was in force for 61 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
Jun 11, 2021, 5:44 PM CDT (22:44 UTC)
Expired
Jun 11, 2021, 6:45 PM CDT
In force
61 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon
Hail
1.5 in
Wind
80.0 mph

County Bourbon County, KS

The radar

The Pleasant Hill radar (KEAX), 120 km from the middle of the area, began a volume at 22:44 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
Jun 11, 6:03 PM CDTTSTM WND DMGBronson, KSDELAYED REPORT. SEVERAL HIGHWAY SIGNS LEANING OR BLOWN OVER. COOP OBSERVER REPORT RELAYED FROM NWS WICHITA. TIME ESTIMATED BY RADAR.
Jun 11, 6:15 PM CDTTSTM WND GST 581 Sw Uniontown, KSKSU MESONET SITE.
Jun 11, 6:30 PM CDTTSTM WND GST 731 Sw Uniontown, KSCORRECTS PREVIOUS TSTM WND GST REPORT FROM 1 SW UNIONTOWN. KSU MESONET SITE MEASURED AT 10M.

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
Jun 11, 3:54 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 10.7 hours before the alert went out and 142 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, Topeka, KS at 12:00Z on 2021-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2135 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, Topeka, KS at 12:00Z on 2021-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
2135 J/kg
Mixed-layer CIN
-160 J/kg
Mixed-layer LCL
1019 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
72 m²/s²
Significant tornado parameter
0.0
Supercell composite
-1.2

Open this sounding in Storm Lab

The text

As transmitted.

269 
WUUS53 KSGF 112244
SVRSGF
KSC011-112345-
/O.NEW.KSGF.SV.W.0074.210611T2244Z-210611T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Springfield MO
544 PM CDT Fri Jun 11 2021

The National Weather Service in Springfield has issued a

* Severe Thunderstorm Warning for...
  Bourbon County in southeastern Kansas...

* Until 645 PM CDT.

* At 544 PM CDT, a severe thunderstorm was located over Kincaid, or
  14 miles west of Mound City, moving southeast at 30 mph.

  This is a very dangerous storm.

  HAZARD...80 mph wind gusts and ping pong ball size hail.

  SOURCE...Radar indicated.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be heavily damaged. Expect 
           considerable damage to roofs, windows, and vehicles. 
           Extensive tree damage and power outages are likely.

* Locations impacted include...
  Fort Scott...                     Marmaton...
  Bronson...                        Uniontown...
  Fulton...                         Redfield...
  Mapleton...                       Harding...
  Pawnee Station...                 Hiattville...
  Petersburg...                     Hammond...
  Devon...                          Garland...
  Porterville...                    Xenia...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

&&

LAT...LON 3804 9508 3803 9461 3767 9462 3767 9498
      3768 9509
TIME...MOT...LOC 2244Z 329DEG 19KT 3810 9512 

HAIL...1.50IN
WIND...80MPH
 
$$

Cramer
1 follow-up statement
496 
WWUS53 KSGF 112314
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
614 PM CDT Fri Jun 11 2021

KSC011-112345-
/O.CON.KSGF.SV.W.0074.000000T0000Z-210611T2345Z/
Bourbon KS-
614 PM CDT Fri Jun 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR BOURBON COUNTY...

At 614 PM CDT, a severe thunderstorm was located near Uniontown, or
14 miles southwest of Mound City, moving southeast at 25 mph.

This is a very dangerous storm.

HAZARD...80 mph wind gusts and two inch hail.

SOURCE...Radar indicated.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. 
         Extensive tree damage and power outages are likely.

Locations impacted include...
Fort Scott...                     Marmaton...
Bronson...                        Uniontown...
Fulton...                         Redfield...
Mapleton...                       Harding...
Pawnee Station...                 Hiattville...
Petersburg...                     Hammond...
Devon...                          Garland...
Porterville...                    Xenia...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. This storm has the potential to cause
serious injury and significant property damage.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

&&

LAT...LON 3804 9508 3803 9461 3767 9462 3767 9498
      3768 9509
TIME...MOT...LOC 2314Z 312DEG 21KT 3794 9496 

HAIL...2.00IN
WIND...80MPH
 
$$

Cramer

The office that day

Everything else NWS Springfield, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 11, 6:43 PM CDTSevere Thunderstorm WarningSGFBourbon, Crawford62 min
Jun 11, 6:58 PM CDTSevere Thunderstorm WarningSGFCherokee62 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.