Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 184, NWS Topeka, KS

December 15, 20215 counties in Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Dec 15, 2021, 4:54 PM CST for 5 counties in Kansas. It was in force for 51 min. 10 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: Dec 15, 2021, 4:54 PM CST (22:54 UTC)
Expired: Dec 15, 2021, 5:45 PM CST
In force: 51 min
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Damage threat: Destructive
Hail: 0.88 in
Wind: 80.0 mph

Counties Brown County, KS, Douglas County, KS, Jackson County, KS, Jefferson County, KS, Shawnee County, KS

The radar

The Topeka radar (KTWX), 91 km from the middle of the area, began a volume at 22:53 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
Dec 15, 4:54 PM CST	TSTM WND DMG	2 Nne Everest, KS	DELAYED REPORT FROM MPING: 1-INCH TREE LIMBS BROKEN; SHINGLES BLOWN OFF.
Dec 15, 5:04 PM CST	TSTM WND GST 64	3 Ene Topeka, KS	ASOS STATION KTOP TOPEKA.
Dec 15, 5:11 PM CST	TSTM WND DMG	3 Nw Perry, KS	DELAYED REPORT: DAMAGE TO A LARGE FARM OUTBUILDING INCLUDED PARTIAL ROOF AND WALL COLLAPSE ON THE STRUCTURE. AN NWS STORM SURVEY DETERMINED THAT DOWNBURST WINDS OF 90 TO 100 MPH CAUSED THE DAMAGE.
Dec 15, 5:15 PM CST	TSTM WND DMG	2 Nne Everest, KS	DELAYED REPORT FROM MPING: 3-INCH TREE LIMBS BROKEN; POWER POLES BROKEN.
Dec 15, 5:15 PM CST	TSTM WND GST 80	3 Nw Perry, KS
Dec 15, 5:16 PM CST	TSTM WND GST 62	2 W Valley Falls, KS	DELAYED REPORT: MESONET STATION FW2032 VALLEY FALLS.
Dec 15, 5:17 PM CST	TSTM WND DMG	Oskaloosa, KS	MULTIPLE POWER POLES DOWN, LARGE BARN BLOWN DOWN AT TOPEKA AND UNION ST. TIME ESTIMATED FROM RADAR.
Dec 15, 5:18 PM CST	TSTM WND DMG	3 Nw Ozawkie, KS	LARGE TREE COMPLETELY ACROSS 122ND ROAD ONE-HALF MILE EAST OF K4 HIGHWAY.
Dec 15, 5:20 PM CST	TSTM WND DMG	Perry, KS	MULTIPLE POWER POLES DOWN, TREE DAMAGE ACROSS CITY.
Dec 15, 5:37 PM CST	TSTM WND GST 61	2 Ese Williamstown, KS	DELAYED REPORT: MESONET STATION UP091 1.9 E WILLIAMSTOWN (UPR).

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
Dec 15, 1:23 PM CST	Tornado Watch	SPC	7 hr
Dec 15, 3:18 PM CST	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 10.9 hours before the alert went out and 64 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1036 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 466 m²/s²
0-3 km storm-relative helicity: 477 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

963 
WUUS53 KTOP 152254
SVRTOP
KSC013-045-085-087-177-152345-
/O.NEW.KTOP.SV.W.0184.211215T2254Z-211215T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Severe Thunderstorm Warning
National Weather Service Topeka KS
454 PM CST Wed Dec 15 2021

The National Weather Service in Topeka has issued a

* Severe Thunderstorm Warning for...
  Jefferson County in northeastern Kansas...
  Northeastern Shawnee County in east central Kansas...
  Northwestern Douglas County in east central Kansas...
  Eastern Jackson County in northeastern Kansas...
  Eastern Brown County in northeastern Kansas...

* Until 545 PM CST.

* At 453 PM CST, severe thunderstorms were located along a line
  extending from 3 miles south of White Cloud to 4 miles southeast of
  Silver Lake, moving east at 50 mph.

  THESE ARE DESTRUCTIVE STORMS FOR warned area.

  HAZARD...80 mph wind gusts and nickel 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...
  Northern Topeka, Holton, Hiawatha, Horton, Valley Falls, Oskaloosa,
  Tecumseh, Silver Lake, Perry, McLouth, Meriden, Hoyt, Ozawkie,
  Nortonville, Lecompton, Winchester, Mayetta, Everest, Robinson and
  Whiting.

This includes Interstate 70 between mile markers 349 and 355.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM CST for northeastern
Kansas.

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

A Tornado Watch remains in effect until 800 PM CST for northeastern
Kansas.

&&

LAT...LON 3965 9534 3965 9556 3942 9557 3942 9518
      3904 9519 3905 9590 3967 9567 4000 9545
      4000 9534
TIME...MOT...LOC 2253Z 265DEG 44KT 3992 9532 3906 9578 

THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...80 MPH

$$

Gargan

3 follow-up statements

566 
WWUS53 KTOP 152314
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
514 PM CST Wed Dec 15 2021

KSC013-085-152322-
/O.CAN.KTOP.SV.W.0184.000000T0000Z-211215T2345Z/
Jackson-Brown-
514 PM CST Wed Dec 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN JACKSON AND EASTERN
BROWN COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 800 PM CST for northeastern
Kansas.

A Severe Thunderstorm Watch remains in effect until 700 PM CST for
northeastern and east central Kansas.

LAT...LON 3904 9519 3905 9568 3916 9561 3922 9560
      3922 9559 3942 9558 3942 9518
TIME...MOT...LOC 2312Z 265DEG 44KT 3994 9503 3908 9549 

$$

KSC045-087-177-152345-
/O.CON.KTOP.SV.W.0184.000000T0000Z-211215T2345Z/
Jefferson-Shawnee-Douglas-
514 PM CST Wed Dec 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CST
FOR JEFFERSON...NORTHEASTERN SHAWNEE AND NORTHWESTERN DOUGLAS
COUNTIES...

At 512 PM CST, severe thunderstorms were located along a line
extending from 6 miles southwest of Fillmore to 3 miles east of
Grantville, moving east at 50 mph.

THESE ARE DESTRUCTIVE STORMS FOR Northeast Shawnee and Jefferson 
Counties.

HAZARD...80 mph wind gusts and nickel 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...
Northeastern Topeka, Valley Falls, Oskaloosa, Tecumseh, Perry,
McLouth, Meriden, Ozawkie, Nortonville, Lecompton, Winchester,
Williamstown, Perry Lake and Grantville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 800 PM CST for northeastern
Kansas.

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

&&

LAT...LON 3904 9519 3905 9568 3916 9561 3922 9560
      3922 9559 3942 9558 3942 9518
TIME...MOT...LOC 2312Z 265DEG 44KT 3994 9503 3908 9549 

THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...80 MPH

$$

Gargan

914 
WWUS53 KTOP 152321
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
521 PM CST Wed Dec 15 2021

KSC177-152328-
/O.CAN.KTOP.SV.W.0184.000000T0000Z-211215T2345Z/
Shawnee-
521 PM CST Wed Dec 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SHAWNEE COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled. A severe 
thunderstorm warning remains in effect for southeast Shawnee County 
until 545 PM.

A Severe Thunderstorm Watch remains in effect until 700 PM CST for
northeastern and east central Kansas.

LAT...LON 3904 9519 3905 9550 3907 9551 3907 9554
      3906 9559 3906 9560 3908 9560 3912 9554
      3921 9547 3929 9548 3942 9545 3942 9518
TIME...MOT...LOC 2318Z 275DEG 40KT 3945 9529 3908 9541 

$$

KSC045-087-152345-
/O.CON.KTOP.SV.W.0184.000000T0000Z-211215T2345Z/
Jefferson-Douglas-
521 PM CST Wed Dec 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CST
FOR JEFFERSON AND NORTHWESTERN DOUGLAS COUNTIES...

At 518 PM CST, severe thunderstorms were located along a line
extending from 3 miles northeast of Nortonville to near Perry, moving
east at 55 mph.

THESE ARE DESTRUCTIVE STORMS FOR eastern Jefferson County.

HAZARD...80 mph wind gusts and nickel size hail.

SOURCE...Law enforcement reported an 80 MPH wind gust at the Lake 
         Perry Dam, at 5:15 PM.

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...
Valley Falls, Oskaloosa, Perry, McLouth, Ozawkie, Nortonville,
Lecompton, Winchester, Williamstown, Perry Lake and Grantville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3904 9519 3905 9550 3907 9551 3907 9554
      3906 9559 3906 9560 3908 9560 3912 9554
      3921 9547 3929 9548 3942 9545 3942 9518
TIME...MOT...LOC 2318Z 275DEG 40KT 3945 9529 3908 9541 

THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...80 MPH

$$

Gargan

912 
WWUS53 KTOP 152346
SVSTOP

Severe Weather Statement
National Weather Service Topeka KS
546 PM CST Wed Dec 15 2021

KSC045-087-152354-
/O.EXP.KTOP.SV.W.0184.000000T0000Z-211215T2345Z/
Jefferson-Douglas-
546 PM CST Wed Dec 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR JEFFERSON AND NORTHWESTERN
DOUGLAS COUNTIES WILL EXPIRE AT 545 PM CST...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with these thunderstorms.

A Severe Thunderstorm Watch remains in effect until 700 PM CST for
northeastern and east central Kansas.

Remember, a severe thunderstorm Warning still remains in effect for 
southern AND eastern Douglas COUNTY until 615 CST.

LAT...LON 3904 9519 3905 9550 3907 9551 3907 9554
      3906 9559 3906 9560 3908 9560 3912 9554
      3921 9547 3929 9548 3942 9545 3942 9518
TIME...MOT...LOC 2344Z 265DEG 44KT 3948 9489 3911 9501 

$$

Gargan

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 15, 1:57 PM CST	Severe Thunderstorm Warning Destructive damage threat	TOP	Cloud, Ottawa, Republic	48 min
Dec 15, 2:42 PM CST	Severe Thunderstorm Warning Destructive damage threat	TOP	Clay, Cloud, Dickinson, Marshall, Ottawa, Republic and 2 more	48 min
Dec 15, 3:00 PM CST	Severe Thunderstorm Warning Destructive damage threat	TOP	Dickinson, Geary, Morris	45 min
Dec 15, 3:01 PM CST	Blowing Dust Advisory	TOP	Clay, Cloud, Dickinson, Ottawa, Republic, Washington	3 hr
Dec 15, 3:19 PM CST	Severe Thunderstorm Warning Destructive damage threat	TOP	Clay, Dickinson, Geary, Jackson, Marshall, Nemaha and 4 more	41 min
Dec 15, 3:29 PM CST	Tornado Warning	TOP	Dickinson, Geary, Riley	13 min
Dec 15, 3:33 PM CST	Tornado Warning	TOP	Pottawatomie, Riley	15 min
Dec 15, 3:39 PM CST	Severe Thunderstorm Warning Destructive damage threat	TOP	Geary, Morris, Wabaunsee	51 min
Dec 15, 3:54 PM CST	Severe Thunderstorm Warning Destructive damage threat	TOP	Brown, Geary, Jackson, Marshall, Nemaha, Pottawatomie and 3 more	51 min
Dec 15, 3:57 PM CST	Tornado Warning	TOP	Jackson, Pottawatomie	10 min
Dec 15, 4:10 PM CST	Tornado Warning	TOP	Nemaha, Pottawatomie	20 min
Dec 15, 4:20 PM CST	Severe Thunderstorm Warning Destructive damage threat	TOP	Lyon, Morris, Osage, Shawnee, Wabaunsee	40 min
Dec 15, 4:33 PM CST	Severe Thunderstorm Warning Destructive damage threat	TOP	Brown, Jackson, Jefferson, Shawnee	27 min
Dec 15, 4:35 PM CST	Severe Thunderstorm Warning Destructive damage threat	TOP	Coffey, Lyon, Osage	40 min
Dec 15, 4:53 PM CST	Severe Thunderstorm Warning Destructive damage threat	TOP	Douglas, Franklin, Jefferson, Lyon, Osage, Shawnee and 1 more	37 min
Dec 15, 5:09 PM CST	Severe Thunderstorm Warning Considerable damage threat	TOP	Franklin, Osage	36 min
Dec 15, 5:15 PM CST	Severe Thunderstorm Warning Destructive damage threat	TOP	Anderson, Coffey, Franklin, Lyon, Osage	45 min
Dec 15, 5:24 PM CST	Severe Thunderstorm Warning Destructive damage threat	TOP	Douglas, Franklin, Jefferson, Osage, Shawnee	36 min
Dec 15, 5:42 PM CST	Severe Thunderstorm Warning Considerable damage threat	TOP	Franklin, Osage	33 min
Dec 15, 5:54 PM CST	Severe Thunderstorm Warning Considerable damage threat	TOP	Anderson, Coffey, Franklin, Osage	36 min
Dec 15, 5:57 PM CST	Severe Thunderstorm Warning	TOP	Douglas, Franklin	18 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.