Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 179, NWS Topeka, KS

December 15, 20219 counties in Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Dec 15, 2021, 3:54 PM CST for 9 counties in Kansas. It was in force for 51 min. 5 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, 3:54 PM CST (21:54 UTC)
Expired: Dec 15, 2021, 4:45 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, Geary County, KS, Jackson County, KS, Marshall County, KS, Nemaha County, KS, Pottawatomie County, KS, Riley County, KS, Shawnee County, KS, Wabaunsee County, KS

The radar

The Topeka radar (KTWX), 50 km from the middle of the area, began a volume at 21:53 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, 4:15 PM CST	TSTM WND GST 75	6 Sse Saint George, KS
Dec 15, 4:20 PM CST	TSTM WND GST 70	4 S Corning, KS
Dec 15, 4:35 PM CST	NON-TSTM WND GST 58	1 E Seneca, KS	DELAYED REPORT: MESONET STATION K5FVW US-36 @ DELAWARE R. SABETHA.
Dec 15, 4:43 PM CST	TSTM WND GST 70	5 Wnw Mayetta, KS
Dec 15, 4:45 PM CST	TSTM WND DMG	2 W Mayetta, KS	DELAYED REPORT OF A METAL POLE BARN BLOWN DOWN AND COMPLETELY DESTROYED.

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, 9.9 hours before the alert went out and 56 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.

266 
WUUS53 KTOP 152154
SVRTOP
KSC013-061-085-117-131-149-161-177-197-152245-
/O.NEW.KTOP.SV.W.0179.211215T2154Z-211215T2245Z/

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

The National Weather Service in Topeka has issued a

* Severe Thunderstorm Warning for...
  East central Geary County in east central Kansas...
  Southeastern Riley County in northeastern Kansas...
  Northwestern Shawnee County in east central Kansas...
  Northern Wabaunsee County in east central Kansas...
  Pottawatomie County in northeastern Kansas...
  Jackson County in northeastern Kansas...
  Nemaha County in northeastern Kansas...
  Western Brown County in northeastern Kansas...
  Eastern Marshall County in northeastern Kansas...

* Until 445 PM CST.

* At 354 PM CST, severe thunderstorms were located along a line
  extending from 3 miles southwest of Pawnee City to 8 miles
  northwest of Volland, moving east at 65 mph.

  THESE ARE DESTRUCTIVE STORMS FOR the 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...
  Wamego, Holton, Sabetha, Seneca, Rossville, Alma, Westmoreland,
  Blaine, St. Marys, Silver Lake, Onaga, St. George, Maple Hill,
  Centralia, Axtell, Wetmore, Fairview, McFarland, Morrill and
  Paxico.

This includes Interstate 70 between mile markers 313 and 354.
 
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 3904 9579 3898 9660 4000 9630 4000 9561
TIME...MOT...LOC 2154Z 269DEG 55KT 4007 9619 3905 9649 

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

366 
WWUS53 KTOP 152214
SVSTOP

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

KSC117-152223-
/O.CAN.KTOP.SV.W.0179.000000T0000Z-211215T2245Z/
Marshall-
414 PM CST Wed Dec 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN MARSHALL COUNTY 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
east central Kansas.

LAT...LON 3904 9581 3900 9659 3902 9659 3942 9635
      3953 9622 3999 9621 4000 9561 3904 9579
TIME...MOT...LOC 2213Z 269DEG 45KT 4009 9594 3901 9632 

$$

KSC013-061-085-131-149-161-177-197-152245-
/O.CON.KTOP.SV.W.0179.000000T0000Z-211215T2245Z/
Geary-Riley-Shawnee-Wabaunsee-Pottawatomie-Jackson-Nemaha-Brown-
414 PM CST Wed Dec 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CST
FOR EAST CENTRAL GEARY...SOUTHEASTERN RILEY...NORTHWESTERN SHAWNEE...
NORTHERN WABAUNSEE...EASTERN POTTAWATOMIE...JACKSON...NEMAHA AND
WESTERN BROWN COUNTIES...

At 413 PM CST, severe thunderstorms were located along a line
extending from 5 miles south of Humboldt to near Alma, moving east 
at 50 mph. Tornado warning remains in effect for northeast 
Pottawatomie and southwest Jackson County.

THESE ARE DESTRUCTIVE STORMS FOR the 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...
Wamego, Holton, Sabetha, Seneca, Rossville, Alma, St. Marys, Silver
Lake, Onaga, St. George, Maple Hill, Centralia, Wetmore, Fairview,
McFarland, Morrill, Paxico, Belvue, Emmett and Louisville.

This includes Interstate 70 between mile markers 313 and 354.
 
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 9581 3900 9659 3902 9659 3942 9635
      3953 9622 3999 9621 4000 9561 3904 9579
TIME...MOT...LOC 2213Z 269DEG 45KT 4009 9594 3901 9632 

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

$$

Gargan

054 
WWUS53 KTOP 152222
SVSTOP

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

KSC061-161-152230-
/O.CAN.KTOP.SV.W.0179.000000T0000Z-211215T2245Z/
Geary-Riley-
422 PM CST Wed Dec 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL GEARY AND
SOUTHEASTERN RILEY 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
east central Kansas.

LAT...LON 3904 9581 3902 9639 3904 9637 3942 9635
      3953 9622 3999 9621 4000 9561 3904 9579
TIME...MOT...LOC 2220Z 269DEG 55KT 4009 9581 3901 9619 

$$

KSC013-085-131-149-177-197-152245-
/O.CON.KTOP.SV.W.0179.000000T0000Z-211215T2245Z/
Shawnee-Wabaunsee-Pottawatomie-Jackson-Nemaha-Brown-
422 PM CST Wed Dec 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CST
FOR NORTHWESTERN SHAWNEE...NORTHERN WABAUNSEE...EASTERN
POTTAWATOMIE...JACKSON...NEMAHA AND WESTERN BROWN COUNTIES...

At 420 PM CST, severe thunderstorms were located along a line
extending from 6 miles southwest of Verdon to 3 miles southeast of
McFarland, moving east at 65 mph.

THESE ARE DESTRUCTIVE STORMS FOR the warned area.

HAZARD...80 mph wind gusts.

SOURCE...Trained weather spotters in St. Mary reported at 4:15 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...
Wamego, Holton, Sabetha, Seneca, Rossville, St. Marys, Silver Lake,
Onaga, Maple Hill, Centralia, Wetmore, Fairview, McFarland, Morrill,
Paxico, Belvue, Emmett, Louisville, Circleville and Delia.

This includes Interstate 70 between mile markers 324 and 354.
 
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 9581 3902 9639 3904 9637 3942 9635
      3953 9622 3999 9621 4000 9561 3904 9579
TIME...MOT...LOC 2220Z 269DEG 55KT 4009 9581 3901 9619 

THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...80 MPH

$$

Gargan

395 
WWUS53 KTOP 152228
SVSTOP

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

KSC013-085-131-149-177-197-152245-
/O.CON.KTOP.SV.W.0179.000000T0000Z-211215T2245Z/
Shawnee-Wabaunsee-Pottawatomie-Jackson-Nemaha-Brown-
428 PM CST Wed Dec 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM CST
FOR NORTHWESTERN SHAWNEE...NORTHEASTERN WABAUNSEE...EASTERN
POTTAWATOMIE...JACKSON...EASTERN NEMAHA AND WESTERN BROWN COUNTIES...

At 427 PM CST, severe thunderstorms were located along a line
extending from 4 miles south of Verdon to 4 miles northwest of Keene,
moving east at 65 mph.

THESE ARE DESTRUCTIVE STORMS FOR the warned area.

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

SOURCE...Trained weather spotters.

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...
Holton, Sabetha, Rossville, St. Marys, Silver Lake, Maple Hill,
Wetmore, Fairview, McFarland, Morrill, Paxico, Belvue, Emmett,
Circleville, Delia, Bern, Corning, Netawaka, Soldier and Havensville.

This includes Interstate 70 between mile markers 326 and 354.

At 4:20 PM, a storm spotter reported 70 MPH wind gusts.

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 9581 3903 9633 3905 9633 3941 9621
      3954 9613 3999 9600 4000 9561 3904 9579
TIME...MOT...LOC 2227Z 269DEG 55KT 4009 9570 3901 9608 

THUNDERSTORM DAMAGE THREAT...DESTRUCTIVE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...80 MPH

$$

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, 3:57 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, 4:54 PM CST	Severe Thunderstorm Warning Destructive damage threat	TOP	Brown, Douglas, Jackson, Jefferson, Shawnee	51 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.