Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 62, NWS Kansas City, MO

June 24, 2021Atchison County, Leavenworth County, Kansas; 7 counties in Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Jun 24, 2021, 9:00 PM CDT for Atchison County, Leavenworth County, Kansas; 7 counties in Missouri. It was in force for 60 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 24, 2021, 9:00 PM CDT (02:00 UTC)
Expired
Jun 24, 2021, 10:00 PM CDT
In force
60 min
Issued by
NWS Kansas City, MO
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Atchison County, KS, Leavenworth County, KS, Buchanan County, MO, Caldwell County, MO, Clay County, MO, Clinton County, MO, DeKalb County, MO, Platte County, MO, Ray County, MO

The radar

The Pleasant Hill radar (KEAX), 104 km from the middle of the area, began a volume at 02:04 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 24, 3:44 PM CDTTornado WatchSPC5 hr
Jun 24, 8:57 PM CDTSevere Thunderstorm WatchSPC6 hr
Jun 24, 6:33 PM CDTTornado WatchSPC3 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 2.0 hours before the alert went out and 85 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-pSkew-T log-p diagram, Topeka, KS at 00:00Z on 2021-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2766 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2021-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 225 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
2766 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
1424 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
225 m²/s²
0-3 km storm-relative helicity
404 m²/s²
Significant tornado parameter
2.2
Supercell composite
23.2

Open this sounding in Storm Lab

The text

As transmitted.

977 
WUUS53 KEAX 250200
SVREAX
KSC005-103-MOC021-025-047-049-063-165-177-250300-
/O.NEW.KEAX.SV.W.0062.210625T0200Z-210625T0300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Kansas City/Pleasant Hill MO
900 PM CDT Thu Jun 24 2021

The National Weather Service in Pleasant Hill has issued a

* Severe Thunderstorm Warning for...
  Northwestern Leavenworth County in northeastern Kansas...
  Atchison County in northeastern Kansas...
  Buchanan County in northwestern Missouri...
  Northern Clay County in west central Missouri...
  Clinton County in northwestern Missouri...
  Northwestern Ray County in west central Missouri...
  Southwestern Caldwell County in north central Missouri...
  Platte County in west central Missouri...
  Southwestern DeKalb County in northwestern Missouri...

* Until 1000 PM CDT.

* At 900 PM CDT, severe thunderstorms were located along a line
  extending from near Stewartsville to near Agency to 6 miles east of
  Rushville to near Atchison to near Muscotah, 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...
  St. Joseph, Leavenworth, Atchison, Cameron, Smithville, Kearney,
  Platte City, Lawson, Plattsburg, Lathrop, Weston, Gower,
  Stewartsville, Agency, Trimble, Polo, Edgerton, Effingham, Dearborn
  and Camden Point.

This includes the following highways...
 Interstate 35 in Missouri between mile markers 26 and 53.
 Interstate 29 between mile markers 17 and 45.
 Interstate 435 near mile marker 31.
 Interstate 229 between mile markers 0 and 2.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3963 9556 3963 9526 3965 9511 3962 9510
      3962 9506 3965 9504 3966 9498 3987 9449
      3958 9388 3943 9416 3934 9446 3934 9517
      3942 9518 3942 9557
TIME...MOT...LOC 0200Z 296DEG 25KT 3979 9450 3972 9467 3962 9490 3959
9518 3960 9550

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

Kurtz
1 follow-up statement
461 
WWUS53 KEAX 250243
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
943 PM CDT Thu Jun 24 2021

KSC005-103-MOC021-025-047-049-063-165-177-250300-
/O.CON.KEAX.SV.W.0062.000000T0000Z-210625T0300Z/
Leavenworth KS-Atchison KS-Buchanan MO-Clay MO-Clinton MO-Ray MO-
Caldwell MO-Platte MO-DeKalb MO-
943 PM CDT Thu Jun 24 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR NORTHWESTERN LEAVENWORTH...SOUTHEASTERN ATCHISON...SOUTHERN
BUCHANAN...NORTHERN CLAY...CLINTON...NORTHWESTERN RAY...SOUTHWESTERN
CALDWELL...PLATTE AND SOUTH CENTRAL DEKALB COUNTIES...

At 943 PM CDT, severe thunderstorms were located along a line
extending from 6 miles southeast of Cameron to near Lathrop to
Trimble to near Weston to 6 miles south of Atchison, 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...
Leavenworth, Atchison, Cameron, Smithville, Kearney, Platte City,
Lawson, Plattsburg, Lathrop, Weston, Gower, Trimble, Polo, Edgerton,
Dearborn, Camden Point, Holt, Osborn, Kingston and Rushville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3958 9525 3959 9488 3979 9432 3958 9388
      3943 9416 3934 9446 3934 9517 3942 9518
TIME...MOT...LOC 0243Z 296DEG 25KT 3967 9417 3960 9434 3950 9457 3947
9485 3948 9517

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

Kurtz

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 7:17 PM CDTSevere Thunderstorm WarningEAXDoniphan43 min
Jun 24, 7:55 PM CDTSpecial Weather StatementEAXDoniphan50 min
Jun 24, 8:27 PM CDTFlash Flood WarningEAXDoniphan16 hr
Jun 24, 8:37 PM CDTSevere Thunderstorm WarningEAXAtchison, Doniphan38 min
Jun 24, 9:33 PM CDTSevere Thunderstorm WarningEAXAtchison, Leavenworth, Wyandotte57 min
Jun 24, 10:25 PM CDTAreal Flood AdvisoryEAXAtchison, Leavenworth3 hr
Jun 24, 10:43 PM CDTSevere Thunderstorm WarningEAXLeavenworth, Wyandotte32 min
Jun 25, 1:59 AM CDTRiver Flood WarningEAXDoniphan63 hr
Jun 25, 2:02 AM CDTRiver Flood WarningEAXAtchison27 hr
Jun 25, 2:03 AM CDTRiver Flood WarningEAXLeavenworth65 hr
Jun 25, 2:04 AM CDTRiver Flood WarningEAXLeavenworth, Wyandotte27 hr
Jun 25, 3:59 AM CDTSpecial Weather StatementEAXLeavenworth, Wyandotte46 min
Jun 25, 4:21 AM CDTSevere Thunderstorm WarningEAXAtchison, Leavenworth, Wyandotte39 min
Jun 25, 4:46 AM CDTAreal Flood AdvisoryEAXAtchison, Johnson, Leavenworth, Wyandotte3 hr
Jun 25, 8:36 AM CDTRiver Flood WarningEAXAtchison, Leavenworth54 hr
Jun 25, 8:38 AM CDTRiver Flood WarningEAXLeavenworth59 hr
Jun 25, 9:23 AM CDTAreal Flood WarningEAXDoniphan12 hr
Jun 25, 2:11 PM CDTSpecial Weather StatementEAXMiami49 min
Jun 25, 3:21 PM CDTSpecial Weather StatementEAXJohnson39 min
Jun 25, 3:54 PM CDTSevere Thunderstorm WarningEAXJohnson, Wyandotte24 min
Jun 25, 3:59 PM CDTFlash Flood WarningEAXMiami6 hr
Jun 25, 4:14 PM CDTSevere Thunderstorm WarningEAXAtchison, Leavenworth, Wyandotte46 min
Jun 25, 4:40 PM CDTSevere Thunderstorm WarningEAXJohnson, Linn, Miami35 min
Jun 25, 5:06 PM CDTSevere Thunderstorm WarningEAXJohnson, Linn, Miami39 min
Jun 25, 5:57 PM CDTFlash Flood WarningEAXLinn, Miami6 hr
Jun 24, 7:03 PM CDTSevere Thunderstorm WarningEAXAtchison42 min
Jun 24, 7:24 PM CDTSpecial Weather StatementEAXMercer51 min
Jun 24, 7:39 PM CDTFlash Flood WarningEAXDaviess, DeKalb, Gentry, Grundy, Harrison, Mercer and 1 more6 hr
Jun 24, 7:45 PM CDTSevere Thunderstorm WarningEAXAndrew, DeKalb, Gentry, Nodaway45 min
Jun 24, 8:12 PM CDTSevere Thunderstorm WarningEAXAndrew, Daviess, DeKalb, Gentry, Grundy, Harrison and 2 more48 min
Jun 24, 8:14 PM CDTSevere Thunderstorm WarningEAXMercer, Putnam24 min
Jun 24, 8:16 PM CDTRiver Flood WarningEAXChariton, Macon19 hr
Jun 24, 8:16 PM CDTRiver Flood WarningEAXAndrew, Nodaway14 hr
Jun 24, 8:16 PM CDTRiver Flood WarningEAXAndrew, Buchanan3 days
Jun 24, 8:16 PM CDTRiver Flood WarningEAXCarroll, Chariton9 days
Jun 24, 8:48 PM CDTFlash Flood Warning Considerable damage threatEAXMercer3 hr
Jun 24, 8:51 PM CDTSevere Thunderstorm WarningEAXCaldwell, Daviess, DeKalb, Grundy, Harrison, Linn and 4 more54 min
Jun 24, 9:13 PM CDTTornado WarningEAXGrundy, Sullivan17 min
Jun 24, 9:29 PM CDTSevere Thunderstorm WarningEAXAdair, Caldwell, Carroll, Chariton, Daviess, Grundy and 7 more61 min
Jun 24, 9:35 PM CDTRiver Flood WarningEAXCooper, Saline11 days
Jun 24, 9:35 PM CDTRiver Flood WarningEAXCooper60 hr
Jun 24, 9:35 PM CDTRiver Flood WarningEAXCarroll8 days
Jun 24, 9:35 PM CDTRiver Flood WarningEAXJohnson, Pettis71 hr
Jun 24, 9:35 PM CDTRiver Flood WarningEAXChariton, Howard, Saline9 days
Jun 24, 9:35 PM CDTRiver Flood WarningEAXCooper, Howard10 days
Jun 24, 9:40 PM CDTTornado WarningEAXPutnam, Sullivan20 min
Jun 24, 9:58 PM CDTTornado WarningEAXAdair, Sullivan17 min
Jun 24, 10:18 PM CDTTornado WarningEAXCarroll, Lafayette, Saline27 min
Jun 24, 10:24 PM CDTSevere Thunderstorm WarningEAXAdair, Carroll, Chariton, Howard, Lafayette, Linn and 6 more51 min
Jun 24, 11:17 PM CDTSpecial Weather StatementEAXCooper, Howard, Randolph, Saline58 min
Jun 25, 12:57 AM CDTFlash Flood WarningEAXCaldwell, Clinton, Daviess, DeKalb10 hr
Jun 25, 1:17 AM CDTAreal Flood WarningEAXDaviess, DeKalb, Gentry, Grundy, Harrison, Mercer and 1 more12 hr
Jun 25, 1:28 AM CDTAreal Flood AdvisoryEAXCarroll, Chariton, Cooper, Howard, Lafayette, Saline3 hr
Jun 25, 1:34 AM CDTRiver Flood WarningEAXClay, Ray34 hr
Jun 25, 2:07 AM CDTRiver Flood WarningEAXJackson, Lafayette, Ray4 days
Jun 25, 2:10 AM CDTRiver Flood WarningEAXCarroll, Lafayette, Saline4 days
Jun 25, 2:11 AM CDTFlash Flood Warning Considerable damage threatEAXAndrew, Holt, Nodaway10 hr
Jun 25, 2:13 AM CDTRiver Flood WarningEAXCarroll, Chariton, Saline8 days
Jun 25, 2:20 AM CDTAreal Flood WarningEAXAtchison, Holt, Nodaway12 hr
Jun 25, 2:26 AM CDTRiver Flood WarningEAXAtchison, Holt6 hr
Jun 25, 2:26 AM CDTRiver Flood WarningEAXGrundy, Livingston13 hr
Jun 25, 3:13 AM CDTFlash Flood Warning Considerable damage threatEAXCarroll, Chariton, Howard, Saline7 hr
Jun 25, 4:28 AM CDTFlash Flood WarningEAXCaldwell, Carroll, Lafayette, Livingston, Ray, Saline4 hr
Jun 25, 4:55 AM CDTFlash Flood WarningEAXCarroll, Lafayette, Ray, Saline6 hr
Jun 25, 5:24 AM CDTFlash Flood WarningEAXCooper, Howard5 hr
Jun 25, 7:25 AM CDTAreal Flood AdvisoryEAXCooper, Pettis, Saline4 hr
Jun 25, 8:13 AM CDTAreal Flood WarningEAXBuchanan, Caldwell, Clay, Clinton, Platte, Ray3 hr
Jun 25, 8:40 AM CDTRiver Flood WarningEAXCass, Henry, Johnson8 days
Jun 25, 9:12 AM CDTAreal Flood WarningEAXCaldwell, Carroll, Chariton, Cooper, Daviess, Howard and 7 more4 days
Jun 25, 1:25 PM CDTAreal Flood WarningEAXBuchanan, Clay, Clinton, Platte9 hr
Jun 25, 2:53 PM CDTSpecial Weather StatementEAXCass67 min
Jun 25, 3:42 PM CDTSevere Thunderstorm WarningEAXCass, Johnson33 min
Jun 25, 4:22 PM CDTSevere Thunderstorm WarningEAXCooper, Howard38 min
Jun 25, 4:31 PM CDTSevere Thunderstorm WarningEAXHenry, Johnson44 min
Jun 25, 4:52 PM CDTTornado WarningEAXHenry, Johnson23 min
Jun 25, 4:56 PM CDTSevere Thunderstorm WarningEAXHenry, Johnson, Pettis49 min
Jun 25, 4:57 PM CDTFlash Flood WarningEAXHenry, Johnson6 hr
Jun 25, 6:10 PM CDTFlash Flood WarningEAXCooper, Howard, Saline6 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2021Severe Thunderstorm Warnings in Kansas, 2021Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.