Alert archive / Kansas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 70, NWS Kansas City, MO

June 25, 2021Atchison County, Leavenworth County, Wyandotte County, Kansas; Platte County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Jun 25, 2021, 4:14 PM CDT for Atchison County, Leavenworth County, Wyandotte County, Kansas; Platte County, Missouri. It was in force for 46 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 25, 2021, 4:14 PM CDT (21:14 UTC)
Expired
Jun 25, 2021, 5:00 PM CDT
In force
46 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, Wyandotte County, KS, Platte County, MO

The radar

The Topeka radar (KTWX), 100 km from the middle of the area, began a volume at 21:18 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 25, 1:43 PM CDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 9.2 hours before the alert went out and 58 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 12:00Z on 2021-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 146 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 12:00Z on 2021-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -236 square meters per square second.19395878Sfc1 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
146 J/kg
Mixed-layer CIN
-476 J/kg
Mixed-layer LCL
1200 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
-236 m²/s²
0-3 km storm-relative helicity
-188 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

632 
WUUS53 KEAX 252114
SVREAX
KSC005-103-209-MOC165-252200-
/O.NEW.KEAX.SV.W.0070.210625T2114Z-210625T2200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Kansas City/Pleasant Hill MO
414 PM CDT Fri Jun 25 2021

The National Weather Service in Pleasant Hill has issued a

* Severe Thunderstorm Warning for...
  Northern Wyandotte County in northeastern Kansas...
  Leavenworth County in northeastern Kansas...
  Southern Atchison County in northeastern Kansas...
  Platte County in west central Missouri...

* Until 500 PM CDT.

* At 413 PM CDT, severe thunderstorms were located along a line
  extending from Gladstone to near McLouth, moving north at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Leavenworth, Lansing, Parkville, Tonganoxie, Platte City, Basehor,
  Riverside, Weatherby Lake, Weston, Kansas City, Lake Waukomis,
  Edgerton, Effingham, Dearborn, Camden Point, Ferrelview, Platte
  Woods, Northmoor, Easton and Houston Lake.

This includes the following highways...
 Interstate 29 between mile markers 3 and 30.
 Interstate 635 between mile markers 7 and 12.
 Interstate 435 between mile markers 14 and 39.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3953 9557 3953 9460 3913 9460 3912 9519
      3942 9518 3942 9557
TIME...MOT...LOC 2113Z 180DEG 30KT 3922 9455 3923 9518 

HAIL...<.75IN
WIND...60MPH
 
$$

BMW
1 follow-up statement
001 
WWUS53 KEAX 252200
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
500 PM CDT Fri Jun 25 2021

KSC005-103-209-MOC165-252210-
/O.EXP.KEAX.SV.W.0070.000000T0000Z-210625T2200Z/
Wyandotte KS-Leavenworth KS-Atchison KS-Platte MO-
500 PM CDT Fri Jun 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WYANDOTTE...
LEAVENWORTH...SOUTHERN ATCHISON AND PLATTE COUNTIES HAS EXPIRED...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been allowed to expire.

A Severe Thunderstorm Watch remains in effect until 900 PM CDT for
northeastern Kansas...and west central Missouri.

LAT...LON 3953 9557 3953 9460 3913 9460 3912 9519
      3942 9518 3942 9557
TIME...MOT...LOC 2200Z 180DEG 30KT 3961 9455 3962 9518 

$$

BMW

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, 9:00 PM CDTSevere Thunderstorm WarningEAXAtchison, Leavenworth60 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, 4:40 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 Kansas, 2021Severe Thunderstorm Warnings in Missouri, 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.