Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 149, NWS Wichita, KS

September 20, 2021Neosho County, Kansas

NWS Wichita, KS issued this severe thunderstorm warning at Sep 20, 2021, 6:31 PM CDT for Neosho County, Kansas. It was in force for 39 min. 4 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: Sep 20, 2021, 6:31 PM CDT (23:31 UTC)
Expired: Sep 20, 2021, 7:10 PM CDT
In force: 39 min
Issued by: NWS Wichita, KS
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Neosho County, KS

The radar

The Tulsa radar (KINX), 156 km from the middle of the area, began a volume at 23:32 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

Time	Report	Where	Remark
Sep 20, 6:39 PM CDT	HAIL 2	1 Se Erie, KS	DELAYED REPORT.
Sep 20, 6:41 PM CDT	HAIL 0.7	Erie, KS
Sep 20, 6:43 PM CDT	HAIL 1	Erie, KS
Sep 20, 6:52 PM CDT	HAIL 1.75	5 Nne Saint Paul, KS

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.5 hours before the alert went out and 149 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: 595 J/kg
Mixed-layer CIN: -53 J/kg
Mixed-layer LCL: 725 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 100 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

400 
WUUS53 KICT 202331
SVRICT
KSC133-210030-
/O.NEW.KICT.SV.W.0149.210920T2331Z-210921T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Wichita KS
631 PM CDT Mon Sep 20 2021

The National Weather Service in Wichita has issued a

* Severe Thunderstorm Warning for...
  Eastern Neosho County in southeastern Kansas...

* Until 730 PM CDT.

* At 631 PM CDT, a severe thunderstorm was located over Erie, moving
  east at 20 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Erie, St. Paul, Galesburg and Stark. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.

&&

LAT...LON 3746 9539 3768 9539 3772 9509 3745 9509
TIME...MOT...LOC 2331Z 269DEG 18KT 3757 9527 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Martin

3 follow-up statements

860 
WWUS53 KICT 202344
SVSICT

Severe Weather Statement
National Weather Service Wichita KS
644 PM CDT Mon Sep 20 2021

KSC133-210030-
/O.CON.KICT.SV.W.0149.000000T0000Z-210921T0030Z/
Neosho KS-
644 PM CDT Mon Sep 20 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR NORTHEASTERN NEOSHO COUNTY...

At 643 PM CDT, a severe thunderstorm was located over Erie, moving
east at 15 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts.

SOURCE...Trained weather spotters. At 644 PM, quarter size hail was 
         reported in Erie. This storm is capable of even larger hail.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Erie, St. Paul and Stark. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

&&

LAT...LON 3749 9532 3766 9531 3770 9509 3748 9509
TIME...MOT...LOC 2343Z 271DEG 14KT 3757 9523 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Martin

737 
WWUS53 KICT 202358
SVSICT

Severe Weather Statement
National Weather Service Wichita KS
658 PM CDT Mon Sep 20 2021

KSC133-210030-
/O.CON.KICT.SV.W.0149.000000T0000Z-210921T0030Z/
Neosho KS-
658 PM CDT Mon Sep 20 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR NORTHEASTERN NEOSHO COUNTY...

At 657 PM CDT, a severe thunderstorm was located near Walnut, or near
St. Paul, moving east at 20 mph.

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

SOURCE...Trained weather spotters. This thunderstorm has a history 
         of producing quarter size hail.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
St. Paul and Stark. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

&&

LAT...LON 3749 9521 3768 9518 3770 9509 3748 9509
TIME...MOT...LOC 2357Z 269DEG 18KT 3757 9514 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Martin

504 
WWUS53 KICT 210010
SVSICT

Severe Weather Statement
National Weather Service Wichita KS
710 PM CDT Mon Sep 20 2021

KSC133-210020-
/O.CAN.KICT.SV.W.0149.000000T0000Z-210921T0030Z/
Neosho KS-
710 PM CDT Mon Sep 20 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN NEOSHO COUNTY IS
CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled.

LAT...LON 3749 9521 3768 9518 3770 9509 3748 9509
TIME...MOT...LOC 0008Z 269DEG 18KT 3757 9506 

$$

Martin

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 20, 3:32 AM CDT	Wind Advisory	ICT	Barton, Ellsworth, Lincoln, Rice, Russell, Saline	11 hr
Sep 20, 5:41 PM CDT	Special Weather Statement	ICT	Allen	34 min
Sep 20, 6:17 PM CDT	Special Weather Statement	ICT	Neosho	43 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.