Alert archive / Kansas / Tornado Warnings in 2020

Tornado Warning 2, NWS Wichita, KS

April 28, 2020Chautauqua County, Kansas

NWS Wichita, KS issued this tornado warning at Apr 28, 2020, 4:21 PM CDT for Chautauqua County, Kansas. It was in force for 24 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
Apr 28, 2020, 4:21 PM CDT (21:21 UTC)
Expired
Apr 28, 2020, 4:45 PM CDT
In force
24 min
Issued by
NWS Wichita, KS
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

County Chautauqua County, KS

The radar

The Tulsa radar (KINX), 122 km from the middle of the area, began a volume at 21:24 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
Apr 28, 4:36 PM CDTHAIL 1Sedan, KSJUST NORTHEAST OF TOWN.

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
Apr 28, 3:18 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 9.4 hours before the alert went out and 206 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 2020-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 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 2020-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 228 square meters per square second.193958Sfc1 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
7 J/kg
Mixed-layer CIN
-553 J/kg
Mixed-layer LCL
1086 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
228 m²/s²
0-3 km storm-relative helicity
193 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

566 
WFUS53 KICT 282121
TORICT
KSC019-282145-
/O.NEW.KICT.TO.W.0002.200428T2121Z-200428T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Wichita KS
421 PM CDT Tue Apr 28 2020

The National Weather Service in Wichita has issued a

* Tornado Warning for...
  Northeastern Chautauqua County in southeastern Kansas...

* Until 445 PM CDT.
    
* At 421 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 8 miles south of Elk Falls, or 9 miles north of Sedan,
  moving southeast at 35 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Sedan and Hale. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3715 9627 3730 9621 3730 9597 3711 9596
      3708 9597
TIME...MOT...LOC 2121Z 293DEG 31KT 3726 9617 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

DARMOFAL
3 follow-up statements
306 
WWUS53 KICT 282128
SVSICT

Severe Weather Statement
National Weather Service Wichita KS
428 PM CDT Tue Apr 28 2020

KSC019-282145-
/O.CON.KICT.TO.W.0002.000000T0000Z-200428T2145Z/
Chautauqua KS-
428 PM CDT Tue Apr 28 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR
NORTHEASTERN CHAUTAUQUA COUNTY...
    
At 428 PM CDT, a severe thunderstorm capable of producing a tornado
was located 8 miles northeast of Sedan, moving southeast at 35 mph.

HAZARD...Tornado and ping pong ball size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Sedan and Hale. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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

&&

LAT...LON 3715 9627 3730 9621 3730 9597 3711 9596
      3708 9597
TIME...MOT...LOC 2128Z 293DEG 31KT 3723 9610 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

DARMOFAL
096 
WWUS53 KICT 282138
SVSICT

Severe Weather Statement
National Weather Service Wichita KS
438 PM CDT Tue Apr 28 2020

KSC019-282145-
/O.CON.KICT.TO.W.0002.000000T0000Z-200428T2145Z/
Chautauqua KS-
438 PM CDT Tue Apr 28 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR
NORTHEASTERN CHAUTAUQUA COUNTY...
    
At 438 PM CDT, a severe thunderstorm capable of producing a tornado 
was located 8 miles northwest of Havana, or 8 miles east of Sedan, 
moving southeast at 40 mph.

HAZARD...Tornado and ping pong ball size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Hale.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

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

&&

LAT...LON 3713 9617 3730 9609 3730 9597 3711 9596
      3708 9597
TIME...MOT...LOC 2138Z 303DEG 33KT 3717 9600 

TORNADO...RADAR INDICATED
HAIL...1.50IN

$$

DARMOFAL
683 
WWUS53 KICT 282143
SVSICT

Severe Weather Statement
National Weather Service Wichita KS
443 PM CDT Tue Apr 28 2020

KSC019-282151-
/O.EXP.KICT.TO.W.0002.000000T0000Z-200428T2145Z/
Chautauqua KS-
443 PM CDT Tue Apr 28 2020

...THE TORNADO WARNING FOR NORTHEASTERN CHAUTAUQUA COUNTY WILL EXPIRE
AT 445 PM CDT...
                
The storm which prompted the warning has weakened and no longer 
appears capable of producing a tornado. Therefore, the warning will 
be allowed to expire.  However strong winds greater than 60 mph and 
large hail are likely along with torrential rain.

A Tornado Watch remains in effect until 1100 PM CDT for southeastern
Kansas.

Remember, a Severe Thunderstorm Warning still remains in effect for
Chautauqua county until 5 pm.

LAT...LON 3713 9617 3730 9609 3730 9597 3711 9596
      3708 9597
TIME...MOT...LOC 2141Z 293DEG 31KT 3717 9599 

$$

DARMOFAL

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 11:47 AM CDTSpecial Weather StatementICTLincoln43 min
Apr 28, 1:20 PM CDTSpecial Weather StatementICTMcPherson, Rice40 min
Apr 28, 1:53 PM CDTSpecial Weather StatementICTMcPherson, Reno, Rice, Saline52 min
Apr 28, 3:07 PM CDTSpecial Weather StatementICTGreenwood23 min
Apr 28, 3:13 PM CDTSpecial Weather StatementICTHarvey32 min
Apr 28, 3:18 PM CDTSevere Thunderstorm WarningICTGreenwood42 min
Apr 28, 3:25 PM CDTSpecial Weather StatementICTCowley35 min
Apr 28, 3:28 PM CDTSevere Thunderstorm WarningICTButler, Chautauqua, Cowley, Elk, Greenwood47 min
Apr 28, 3:29 PM CDTSpecial Weather StatementICTButler31 min
Apr 28, 3:48 PM CDTSevere Thunderstorm WarningICTElk, Greenwood, Wilson27 min
Apr 28, 4:06 PM CDTSevere Thunderstorm WarningICTChautauqua, Cowley, Elk, Greenwood, Montgomery, Wilson54 min
Apr 28, 4:47 PM CDTSevere Thunderstorm WarningICTChautauqua, Labette, Montgomery, Neosho, Wilson58 min
Apr 28, 5:17 PM CDTSevere Thunderstorm WarningICTLabette43 min

Nearby

Tornado Warnings in Kansas, 2020Every tornado warning in 2020Tornadoes in 2020

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.