Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 53, NWS Topeka, KS

June 11, 20214 counties in Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Jun 11, 2021, 4:05 PM CDT for 4 counties in Kansas. It was in force for 40 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, 4:05 PM CDT (21:05 UTC)
Expired: Jun 11, 2021, 4:45 PM CDT
In force: 40 min
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Coffey County, KS, Douglas County, KS, Franklin County, KS, Osage County, KS

The radar

The Topeka radar (KTWX), 74 km from the middle of the area, began a volume at 21:07 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
Jun 11, 4:21 PM CDT	TSTM WND DMG	6 Ene Lyndon, KS	POMONA LAKE MARINA REPORTED VIA FACEBOOK SEVERE STORM DAMAGE TO THE STORE, DOCKS, AND WALKWAYS, AS WELL AS DAMAGE TO SEVERAL BOATS. TIME ESTIMATED BY RADAR.
Jun 11, 4:22 PM CDT	TSTM WND GST 61	Overbrook, KS
Jun 11, 4:25 PM CDT	TSTM WND GST 59	2 S Overbrook, KS

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.

Issued	Product	Office	Lasted
Jun 11, 12:32 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 9.1 hours before the alert went out and 41 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: 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.

318 
WUUS53 KTOP 112105
SVRTOP
KSC031-045-059-139-112145-
/O.NEW.KTOP.SV.W.0053.210611T2105Z-210611T2145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Topeka KS
405 PM CDT Fri Jun 11 2021

The National Weather Service in Topeka has issued a

* Severe Thunderstorm Warning for...
  Franklin County in east central Kansas...
  Southern Douglas County in east central Kansas...
  Osage County in east central Kansas...
  Northeastern Coffey County in east central Kansas...

* Until 445 PM CDT.

* At 405 PM CDT, severe thunderstorms were located along a line
  extending from 3 miles east of Overbrook to 4 miles northeast of
  Olivet, moving southeast at 30 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Ottawa, Baldwin City, Osage City, Carbondale, Wellsville,
  Overbrook, Lyndon, Centropolis, Burlingame, Pomona, Scranton,
  Richmond, Williamsburg, Quenemo, Melvern, Lone Star, Princeton,
  Lane, Rantoul and Olivet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3839 9508 3839 9550 3847 9595 3858 9595
      3877 9584 3887 9561 3887 9550 3889 9550
      3883 9507
TIME...MOT...LOC 2105Z 308DEG 28KT 3879 9549 3853 9571 

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

Jones

3 follow-up statements

655 
WWUS53 KTOP 112115
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
415 PM CDT Fri Jun 11 2021

KSC031-045-059-139-112145-
/O.CON.KTOP.SV.W.0053.000000T0000Z-210611T2145Z/
Franklin-Douglas-Osage-Coffey-
415 PM CDT Fri Jun 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR FRANKLIN...SOUTHERN DOUGLAS...OSAGE AND NORTHEASTERN COFFEY
COUNTIES...

At 415 PM CDT, severe thunderstorms were located along a line
extending from 4 miles southeast of Overbrook to 3 miles north of
Waverly, moving southeast at 35 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Ottawa, Baldwin City, Osage City, Wellsville, Overbrook, Lyndon,
Centropolis, Pomona, Scranton, Richmond, Williamsburg, Quenemo,
Melvern, Princeton, Lane, Rantoul, Olivet, Pomona Lake, Globe and
Melvern Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3839 9508 3839 9550 3847 9595 3858 9595
      3876 9581 3884 9562 3882 9507
TIME...MOT...LOC 2115Z 314DEG 28KT 3874 9549 3844 9563 

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

Jones

393 
WWUS53 KTOP 112122
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
422 PM CDT Fri Jun 11 2021

KSC031-045-059-139-112145-
/O.CON.KTOP.SV.W.0053.000000T0000Z-210611T2145Z/
Franklin-Douglas-Osage-Coffey-
422 PM CDT Fri Jun 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR FRANKLIN...SOUTHERN DOUGLAS...SOUTHERN OSAGE AND NORTHEASTERN
COFFEY COUNTIES...

At 422 PM CDT, severe thunderstorms were located along a line
extending from 5 miles southwest of Globe to Quenemo to near Waverly,
moving southeast 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...
Ottawa, Baldwin City, Osage City, Wellsville, Lyndon, Centropolis,
Pomona, Richmond, Williamsburg, Quenemo, Melvern, Princeton, Lane,
Rantoul, Olivet, Pomona Lake and Melvern Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3839 9508 3839 9550 3846 9590 3857 9588
      3871 9578 3877 9562 3877 9507
TIME...MOT...LOC 2122Z 307DEG 28KT 3872 9545 3858 9551 3843 9559 

HAIL...0.88IN
WIND...60MPH
 
$$

Jones

975 
WWUS53 KTOP 112133
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
433 PM CDT Fri Jun 11 2021

KSC031-045-059-139-112145-
/O.CON.KTOP.SV.W.0053.000000T0000Z-210611T2145Z/
Franklin-Douglas-Osage-Coffey-
433 PM CDT Fri Jun 11 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CDT
FOR FRANKLIN...SOUTHERN DOUGLAS...SOUTHERN OSAGE AND NORTHEASTERN
COFFEY COUNTIES...

At 433 PM CDT, severe thunderstorms were located along a line
extending from Centropolis to 3 miles southeast of Pomona to 5 miles
south of Williamsburg, moving southeast at 30 mph.

HAZARD...70 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect considerable 
         tree damage. Wind damage is also likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Ottawa, Baldwin City, Osage City, Wellsville, Lyndon, Centropolis,
Pomona, Richmond, Williamsburg, Quenemo, Melvern, Princeton, Lane,
Rantoul, Olivet, Pomona Lake and Melvern Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3839 9508 3839 9550 3846 9590 3857 9588
      3870 9575 3877 9562 3877 9507
TIME...MOT...LOC 2133Z 300DEG 28KT 3871 9536 3856 9541 3841 9549 

HAIL...1.25IN
WIND...70MPH
 
$$

Jones

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 11, 12:10 PM CDT	Special Weather Statement	TOP	Nemaha	35 min
Jun 11, 12:19 PM CDT	Severe Thunderstorm Warning	TOP	Brown, Marshall, Nemaha	41 min
Jun 11, 12:56 PM CDT	Severe Thunderstorm Warning	TOP	Brown, Jackson, Nemaha	49 min
Jun 11, 1:28 PM CDT	Severe Thunderstorm Warning	TOP	Jackson, Jefferson	47 min
Jun 11, 2:03 PM CDT	Severe Thunderstorm Warning	TOP	Douglas, Jefferson, Shawnee	42 min
Jun 11, 2:10 PM CDT	Severe Thunderstorm Warning	TOP	Jefferson	35 min
Jun 11, 2:21 PM CDT	Special Weather Statement	TOP	Shawnee, Wabaunsee	24 min
Jun 11, 2:25 PM CDT	Severe Thunderstorm Warning	TOP	Jackson	19 min
Jun 11, 2:40 PM CDT	Severe Thunderstorm Warning	TOP	Douglas, Jefferson, Shawnee	50 min
Jun 11, 3:08 PM CDT	Areal Flood Advisory	TOP	Douglas	3 hr
Jun 11, 3:20 PM CDT	Severe Thunderstorm Warning	TOP	Jackson, Jefferson	25 min
Jun 11, 3:35 PM CDT	Severe Thunderstorm Warning	TOP	Jackson	25 min
Jun 11, 4:45 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Franklin	30 min
Jun 11, 5:15 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Franklin	30 min
Jun 11, 5:32 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey	28 min
Jun 11, 6:01 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey	29 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.