Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 157, NWS Kansas City, MO

December 15, 20217 counties in Missouri; Wyandotte County, Kansas

NWS Kansas City, MO issued this severe thunderstorm warning at Dec 15, 2021, 6:15 PM CST for 7 counties in Missouri; Wyandotte County, Kansas. It was in force for 60 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: Dec 15, 2021, 6:15 PM CST (00:15 UTC)
Expired: Dec 15, 2021, 7:15 PM CST
In force: 60 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Damage threat: Considerable
Hail: 0.75 in
Wind: 70.0 mph

Counties Wyandotte County, KS, Caldwell County, MO, Carroll County, MO, Clay County, MO, Clinton County, MO, Daviess County, MO, Livingston County, MO, Ray County, MO

The radar

The Pleasant Hill radar (KEAX), 65 km from the middle of the area, began a volume at 00:19 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, 6:29 PM CST	TSTM WND DMG	3 Wnw Excelsior Estates, MO	MULTIPLE WINDOWS BLOWN OUT AND SHINGLES REMOVED FROM ROOF. TWO 6 TO 8 INCH DIAMETER TREES BLOWN DOWN.

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, 3:18 PM CST	Severe Thunderstorm Watch	SPC	5 hr
Dec 15, 6:00 PM CST	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 0.3 hours before the alert went out and 146 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: 2425 m above ground
0-6 km bulk shear: 99 kt
0-1 km storm-relative helicity: -149 m²/s²
0-3 km storm-relative helicity: 201 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

003 
WUUS53 KEAX 160015
SVREAX
KSC209-MOC025-033-047-049-061-117-177-160115-
/O.NEW.KEAX.SV.W.0157.211216T0015Z-211216T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Kansas City/Pleasant Hill MO
615 PM CST Wed Dec 15 2021

The National Weather Service in Pleasant Hill has issued a

* Severe Thunderstorm Warning for...
  East central Wyandotte County in northeastern Kansas...
  Southeastern Daviess County in north central Missouri...
  Eastern Clinton County in northwestern Missouri...
  Clay County in west central Missouri...
  Ray County in west central Missouri...
  Western Carroll County in north central Missouri...
  Caldwell County in north central Missouri...
  Livingston County in north central Missouri...

* Until 715 PM CST.

* At 614 PM CST, severe thunderstorms were located along a line
  extending from near Cameron to 6 miles northwest of Kearney to near
  Claycomo, moving northeast at 70 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect considerable tree damage. Damage is likely to 
           mobile homes, roofs, and outbuildings.

* Locations impacted include...
  Kansas City, Liberty, Gladstone, Excelsior Springs, Cameron,
  Chillicothe, Smithville, Kearney, Richmond, Lexington, North Kansas
  City, Carrollton, Sugar Creek, Riverside, Lawson, Lathrop,
  Hamilton, Claycomo, Kansas City Kansas and Pleasant Valley.

This includes the following highways...
 Interstate 70 in Missouri between mile markers 0 and 1.
 Interstate 70 in Kansas between mile markers 421 and 423.
 Interstate 35 in Missouri between mile markers 5 and 55.
 Interstate 29 between mile markers 0 and 3.
 Interstate 635 near mile marker 12.
 Interstate 435 between mile markers 40 and 56.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for damaging winds. People outside should move 
immediately to shelter inside a strong building. Stay away from 
windows.

&&

LAT...LON 3996 9337 3971 9336 3932 9348 3926 9376
      3921 9376 3921 9385 3914 9397 3921 9398
      3919 9403 3914 9405 3921 9417 3924 9429
      3916 9437 3920 9440 3912 9445 3915 9454
      3905 9465 3936 9458 3979 9420 3996 9366
TIME...MOT...LOC 0014Z 239DEG 63KT 3972 9417 3942 9446 3919 9452 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

CDB

3 follow-up statements

669 
WWUS53 KEAX 160028
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
628 PM CST Wed Dec 15 2021

KSC209-160038-
/O.CAN.KEAX.SV.W.0157.000000T0000Z-211216T0115Z/
Wyandotte KS-
628 PM CST Wed Dec 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL WYANDOTTE 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 Watch remains in effect until 700 PM CST for
north central, northwestern and west central Missouri. A Severe
Thunderstorm Watch also remains in effect until midnight CST for
north central and west central Missouri.

LAT...LON 3996 9337 3971 9336 3932 9348 3926 9376
      3921 9376 3921 9385 3914 9397 3921 9398
      3919 9403 3914 9405 3921 9417 3924 9429
      3916 9437 3920 9440 3942 9439 3979 9420
      3996 9366
TIME...MOT...LOC 0028Z 239DEG 63KT 3984 9391 3954 9420 3931 9426 

$$

MOC025-033-047-049-061-117-177-160115-
/O.CON.KEAX.SV.W.0157.000000T0000Z-211216T0115Z/
Daviess MO-Clinton MO-Clay MO-Ray MO-Carroll MO-Caldwell MO-
Livingston MO-
628 PM CST Wed Dec 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CST
FOR SOUTHEASTERN DAVIESS...SOUTHEASTERN CLINTON...EASTERN CLAY...
RAY...WESTERN CARROLL...CALDWELL AND LIVINGSTON COUNTIES...

At 628 PM CST, severe thunderstorms were located along a line
extending from near Gallatin to 6 miles east of Lathrop to near
Excelsior Springs, moving northeast at 70 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Liberty, Excelsior Springs, Cameron, Chillicothe, Kearney, Richmond,
Lexington, Carrollton, Lawson, Lathrop, Hamilton, Braymer, Orrick,
Norborne, Polo, Hardin, Holt, Breckenridge, Henrietta and Crystal
Lakes.

This includes Interstate 35 in Missouri between mile markers 23 and
53.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for damaging winds. People outside should move 
to a shelter, inside a strong building and away from windows.

&&

LAT...LON 3996 9337 3971 9336 3932 9348 3926 9376
      3921 9376 3921 9385 3914 9397 3921 9398
      3919 9403 3914 9405 3921 9417 3924 9429
      3916 9437 3920 9440 3942 9439 3979 9420
      3996 9366
TIME...MOT...LOC 0028Z 239DEG 63KT 3984 9391 3954 9420 3931 9426 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

CDB

460 
WWUS53 KEAX 160038
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
638 PM CST Wed Dec 15 2021

MOC047-049-160047-
/O.CAN.KEAX.SV.W.0157.000000T0000Z-211216T0115Z/
Clinton MO-Clay MO-
638 PM CST Wed Dec 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN CLINTON AND
EASTERN CLAY COUNTIES IS CANCELLED...

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

A Severe Thunderstorm Watch remains in effect until 700 PM CST for
north central and west central Missouri. A Severe Thunderstorm Watch
also remains in effect until midnight CST for north central and west
central Missouri.

LAT...LON 3996 9337 3971 9336 3932 9348 3926 9376
      3921 9376 3921 9385 3918 9390 3918 9393
      3914 9397 3919 9396 3921 9398 3919 9403
      3914 9405 3921 9417 3922 9421 3979 9420
      3996 9366
TIME...MOT...LOC 0037Z 239DEG 63KT 3991 9375 3961 9404 3938 9410 

$$

MOC025-033-061-117-177-160115-
/O.CON.KEAX.SV.W.0157.000000T0000Z-211216T0115Z/
Daviess MO-Ray MO-Carroll MO-Caldwell MO-Livingston MO-
638 PM CST Wed Dec 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CST
FOR SOUTHEASTERN DAVIESS...RAY...WESTERN CARROLL...CALDWELL AND
LIVINGSTON COUNTIES...

At 637 PM CST, severe thunderstorms were located along a line
extending from near Jamesport to near Kingston to near Woods Heights,
moving northeast at 70 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Excelsior Springs, Chillicothe, Richmond, Lexington, Carrollton,
Lawson, Hamilton, Braymer, Orrick, Norborne, Polo, Hardin,
Breckenridge, Henrietta, Crystal Lakes, Kingston, Wheeling, Utica,
Cowgill and Excelsior Estates.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for damaging winds. People outside should move 
to a shelter, inside a strong building and away from windows.

&&

LAT...LON 3996 9337 3971 9336 3932 9348 3926 9376
      3921 9376 3921 9385 3918 9390 3918 9393
      3914 9397 3919 9396 3921 9398 3919 9403
      3914 9405 3921 9417 3922 9421 3979 9420
      3996 9366
TIME...MOT...LOC 0037Z 239DEG 63KT 3991 9375 3961 9404 3938 9410 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

CDB

714 
WWUS53 KEAX 160058
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
658 PM CST Wed Dec 15 2021

MOC025-033-061-117-177-160115-
/O.CON.KEAX.SV.W.0157.000000T0000Z-211216T0115Z/
Daviess MO-Ray MO-Carroll MO-Caldwell MO-Livingston MO-
658 PM CST Wed Dec 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CST
FOR SOUTHEASTERN DAVIESS...EASTERN RAY...WESTERN CARROLL...EASTERN
CALDWELL AND LIVINGSTON COUNTIES...

At 657 PM CST, severe thunderstorms were located along a line
extending from near Galt to near Utica to near Braymer, moving east
at 70 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect considerable tree damage. Damage is likely to mobile 
         homes, roofs, and outbuildings.

Locations impacted include...
Chillicothe, Carrollton, Braymer, Norborne, Hardin, Breckenridge,
Henrietta, Wheeling, Utica, Chula, Bogard, Tina, Ludlow, Mooresville,
Lock Springs, Spring Hill, Avalon, Dawn and Stet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for damaging winds. People outside should move 
to a shelter, inside a strong building and away from windows.

&&

LAT...LON 3996 9337 3971 9336 3932 9348 3926 9376
      3924 9376 3922 9383 3921 9385 3921 9387
      3918 9395 3971 9387 3993 9376 3996 9366
TIME...MOT...LOC 0057Z 270DEG 63KT 4006 9337 3976 9367 3953 9373 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

CDB

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 15, 6:00 PM CST	Severe Thunderstorm Warning Considerable damage threat	EAX	Cass, Jackson	45 min
Dec 15, 6:11 PM CST	Severe Thunderstorm Warning Considerable damage threat	EAX	Bates, Cass	64 min
Dec 15, 6:24 PM CST	Severe Thunderstorm Warning Considerable damage threat	EAX	Daviess, Grundy, Harrison, Mercer, Putnam, Sullivan	66 min
Dec 15, 6:35 PM CST	Severe Thunderstorm Warning Considerable damage threat	EAX	Carroll, Jackson, Lafayette	40 min
Dec 15, 6:43 PM CST	Severe Thunderstorm Warning Considerable damage threat	EAX	Cass, Jackson, Johnson	47 min
Dec 15, 7:03 PM CST	Severe Thunderstorm Warning Considerable damage threat	EAX	Adair, Carroll, Chariton, Grundy, Linn, Livingston and 7 more	87 min
Dec 15, 7:08 PM CST	Severe Thunderstorm Warning Considerable damage threat	EAX	Bates, Carroll, Cass, Chariton, Cooper, Henry and 7 more	82 min
Dec 15, 8:25 PM CST	Severe Thunderstorm Warning	EAX	Cooper, Howard, Randolph	35 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2021 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.