Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 110, NWS Wichita, KS

July 31, 2021Sumner County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Jul 31, 2021, 7:48 PM CDT for Sumner County, Kansas. It was in force for 27 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Jul 31, 2021, 7:48 PM CDT (00:48 UTC)
Expired: Jul 31, 2021, 8:15 PM CDT
In force: 27 min
Issued by: NWS Wichita, KS
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Sumner County, KS

The radar

The Wichita radar (KICT), 40 km from the middle of the area, began a volume at 00:52 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.

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 0.8 hours before the alert went out and 225 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: 1535 J/kg
Mixed-layer CIN: -58 J/kg
Mixed-layer LCL: 1333 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 38 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

118 
WUUS53 KICT 010048
SVRICT
KSC191-010115-
/O.NEW.KICT.SV.W.0110.210801T0048Z-210801T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wichita KS
748 PM CDT Sat Jul 31 2021

The National Weather Service in Wichita has issued a

* Severe Thunderstorm Warning for...
  Central Sumner County in south central Kansas...

* Until 815 PM CDT.

* At 748 PM CDT, a severe thunderstorm was located over Wellington,
  and is nearly stationary.

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

  SOURCE...Radar indicated.

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

* This severe thunderstorm will be near...
  Wellington around 755 PM CDT.

This includes Interstate 35 between Mile Markers 18 and 25.
 
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 3727 9752 3740 9746 3734 9725 3721 9736
TIME...MOT...LOC 0048Z 309DEG 4KT 3730 9741 

HAIL...0.75IN
WIND...60MPH
 
$$

METZGER

1 follow-up statement

250 
WWUS53 KICT 010108
SVSICT

Severe Weather Statement
National Weather Service Wichita KS
808 PM CDT Sat Jul 31 2021

KSC191-010118-
/O.EXP.KICT.SV.W.0110.000000T0000Z-210801T0115Z/
Sumner KS-
808 PM CDT Sat Jul 31 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SUMNER COUNTY WILL
EXPIRE AT 815 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.  However heavy rain
is still possible with this thunderstorm.

LAT...LON 3727 9752 3740 9746 3734 9725 3721 9736
TIME...MOT...LOC 0108Z 309DEG 4KT 3728 9739 

$$

METZGER

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 31, 7:17 PM CDT	Special Weather Statement	ICT	Sumner	28 min
Jul 31, 8:03 PM CDT	Special Weather Statement	ICT	Cowley	27 min
Jul 31, 8:09 PM CDT	Special Weather Statement	ICT	Sumner	51 min
Jul 31, 8:26 PM CDT	Severe Thunderstorm Warning	ICT	Sedgwick, Sumner	34 min
Jul 31, 8:37 PM CDT	Special Weather Statement	ICT	Chautauqua, Cowley	38 min
Jul 31, 8:46 PM CDT	Special Weather Statement	ICT	Harper	29 min
Jul 31, 8:57 PM CDT	Special Weather Statement	ICT	Sedgwick	33 min
Jul 31, 9:13 PM CDT	Special Weather Statement	ICT	Chautauqua, Cowley	47 min
Jul 31, 9:31 PM CDT	Special Weather Statement	ICT	Harper	44 min
Jul 31, 10:05 PM CDT	Special Weather Statement	ICT	Cowley	40 min
Jul 31, 10:20 PM CDT	Special Weather Statement	ICT	Kingman	25 min
Jul 31, 10:28 PM CDT	Special Weather Statement	ICT	Sumner	32 min
Jul 31, 11:18 PM CDT	Special Weather Statement	ICT	Chautauqua	27 min

Nearby

Severe Thunderstorm Warnings in Kansas, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.