Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 175, NWS Topeka, KS

December 15, 20218 counties in Kansas

NWS Topeka, KS issued this severe thunderstorm warning at Dec 15, 2021, 2:42 PM CST for 8 counties in Kansas. It was in force for 48 min. 8 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, 2:42 PM CST (20:42 UTC)
Expired: Dec 15, 2021, 3:30 PM CST
In force: 48 min
Issued by: NWS Topeka, KS
Area: Storm-based polygon
Damage threat: Destructive
Hail: 0.75 in
Wind: 80.0 mph

Counties Clay County, KS, Cloud County, KS, Dickinson County, KS, Marshall County, KS, Ottawa County, KS, Republic County, KS, Riley County, KS, Washington County, KS

The radar

The Topeka radar (KTWX), 107 km from the middle of the area, began a volume at 20:46 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, 2:45 PM CST	TSTM WND DMG	Culver, KS	TIN ROOF ROLLED BACK ON BUILDING, 6 INCH TREE LIMBS DOWN, AND FENCE DOWN.
Dec 15, 2:47 PM CST	TSTM WND DMG	3 Wsw Bennington, KS	CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 3 WSW BENNINGTON. BLOWN-OVER SEMI AT MILE MARKER 165 ON US-81. DELAYED REPORT. TIME CORRECTED BASED ON RADAR DATA.
Dec 15, 2:56 PM CST	TSTM WND DMG	Clyde, KS	PEA SIZED HAIL, 8IN DIAMETER TREE DOWN, 0 VISIBILITY FROM BLOWING DUST AND DIRT.
Dec 15, 2:56 PM CST	TSTM WND GST 75	Miltonvale, KS
Dec 15, 3:00 PM CST	TSTM WND GST 85	2 E Clay Center, KS	MESONET STATION EW5822 CLAY CENTER.
Dec 15, 3:02 PM CST	TSTM WND DMG	2 E Agenda, KS	TWO 8 INCH LIMBS ARE DOWN.
Dec 15, 3:14 PM CST	TSTM WND DMG	Morrowville, KS	DEAD TREES KNOCKED OVER, 12 INCH DIAMETER.
Dec 15, 3:18 PM CST	TSTM WND DMG	1 Se Clay Center, KS	METAL GRAIN BINS DAMAGED; TIME ESTIMATED.

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

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 8.7 hours before the alert went out and 154 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.

185 
WUUS53 KTOP 152042
SVRTOP
KSC027-029-041-117-143-157-161-201-152130-
/O.NEW.KTOP.SV.W.0175.211215T2042Z-211215T2130Z/

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

The National Weather Service in Topeka has issued a

* Severe Thunderstorm Warning for...
  Northwestern Dickinson County in central Kansas...
  Northwestern Riley County in northeastern Kansas...
  Ottawa County in north central Kansas...
  Eastern Republic County in north central Kansas...
  Washington County in north central Kansas...
  Clay County in north central Kansas...
  Eastern Cloud County in north central Kansas...
  Northwestern Marshall County in northeastern Kansas...

* Until 330 PM CST.

* At 240 PM CST, severe thunderstorms were located along a line
  extending from 5 miles north of Hubbell to near Agenda to 4 miles
  east of Culver, moving northeast at 60 mph.

  THESE ARE DESTRUCTIVE STORMS!

  HAZARD...80 mph wind gusts.

  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...
  Clay Center, Minneapolis, Washington, Wakefield, Clyde, Hanover,
  Bennington, Clifton, Miltonvale, Linn, Greenleaf, Morganville,
  Barnes, Cuba, Morrowville, Green, Culver, Wells, Palmer and Haddam.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

This is an EXTREMELY DANGEROUS SITUATION. These storms are producing 
widespread wind damage across Republic and Cloud counties. SEEK 
SHELTER NOW inside a sturdy structure and stay away from windows!

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

&&

LAT...LON 4000 9672 3904 9700 3896 9741 3896 9780
      3897 9780 3971 9754 4000 9762
TIME...MOT...LOC 2040Z 240DEG 54KT 4008 9753 3973 9746 3896 9767 

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

$$

2 follow-up statements

824 
WWUS53 KTOP 152105
SVSTOP

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

KSC027-029-041-117-143-157-161-201-152130-
/O.CON.KTOP.SV.W.0175.000000T0000Z-211215T2130Z/
Dickinson-Riley-Ottawa-Republic-Washington-Clay-Cloud-Marshall-
305 PM CST Wed Dec 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CST
FOR NORTHWESTERN DICKINSON...NORTHWESTERN RILEY...EASTERN OTTAWA...
SOUTHEASTERN REPUBLIC...WASHINGTON...CLAY...EASTERN CLOUD AND
NORTHWESTERN MARSHALL COUNTIES...

At 302 PM CST, severe thunderstorms were located along a line
extending from 6 miles north of Fairbury to 4 miles northeast of
Morrowville to near Manchester, moving northeast at 60 mph.

THESE ARE DESTRUCTIVE STORMS!

HAZARD...80 mph wind gusts.

SOURCE...Trained weather spotters. Reports of tree damage have been 
         reported about 2 miles east of Agenda at 302 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...
Clay Center, Washington, Wakefield, Clyde, Hanover, Bennington,
Clifton, Miltonvale, Linn, Greenleaf, Morganville, Barnes,
Morrowville, Green, Wells, Palmer, Haddam, Manchester, Mahaska and
Longford.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

This is an EXTREMELY DANGEROUS SITUATION. These storms are producing 
widespread wind damage across Washington,Clay and Ottawa counties. 
SEEK SHELTER NOW inside a sturdy structure and stay away from 
windows.

&&

LAT...LON 4000 9672 3904 9700 3896 9741 3896 9763
      3974 9742 4000 9737
TIME...MOT...LOC 2102Z 240DEG 54KT 4024 9717 3989 9710 3912 9731 

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

$$

951 
WWUS53 KTOP 152112
SVSTOP

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

KSC029-143-157-152119-
/O.CAN.KTOP.SV.W.0175.000000T0000Z-211215T2130Z/
Ottawa-Republic-Cloud-
312 PM CST Wed Dec 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN OTTAWA...SOUTHEASTERN
REPUBLIC AND EASTERN CLOUD 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 north central
and northeastern Kansas.

LAT...LON 4000 9672 3922 9695 3922 9696 3918 9696
      3904 9700 3897 9737 3915 9737 3972 9732
      4000 9723
TIME...MOT...LOC 2109Z 240DEG 54KT 4029 9706 3994 9699 3917 9720 

$$

KSC027-041-117-161-201-152130-
/O.CON.KTOP.SV.W.0175.000000T0000Z-211215T2130Z/
Dickinson-Riley-Washington-Clay-Marshall-
312 PM CST Wed Dec 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM CST
FOR NORTHWESTERN DICKINSON...NORTHWESTERN RILEY...WASHINGTON...CLAY
AND NORTHWESTERN MARSHALL COUNTIES...

At 309 PM CST, severe thunderstorms were located along a line
extending from 3 miles west of Plymouth to near Hollenberg to 6 miles
east of Longford, moving northeast at 60 mph.

THESE ARE DESTRUCTIVE STORMS!

HAZARD...80 mph wind gusts.

SOURCE...Trained weather spotters. Winds around 80 mph and damage to 
         power poles and transformers as well as trees have been 
         reported. 

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...
Clay Center, Washington, Wakefield, Hanover, Clifton, Linn,
Greenleaf, Morganville, Barnes, Morrowville, Green, Palmer,
Manchester, Longford, Vining, Oak Hill, Hollenberg, Talmage, Idana
and Bremen.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This is an EXTREMELY DANGEROUS SITUATION. These storms are producing 
widespread wind damage across the warned area. SEEK SHELTER NOW 
inside a sturdy structure and stay away from windows.

&&

LAT...LON 4000 9672 3922 9695 3922 9696 3918 9696
      3904 9700 3897 9737 3915 9737 3972 9732
      4000 9723
TIME...MOT...LOC 2109Z 240DEG 54KT 4029 9706 3994 9699 3917 9720 

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

$$

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, 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, 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.