Alert archive / Missouri / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 367, NWS Kansas City, MO

August 14, 2024Clay County, Clinton County, Jackson County, Missouri; Wyandotte County, Kansas

NWS Kansas City, MO issued this severe thunderstorm warning at Aug 14, 2024, 11:28 PM CDT for Clay County, Clinton County, Jackson County, Missouri; Wyandotte County, Kansas. It was in force for 47 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
Aug 14, 2024, 11:28 PM CDT (04:28 UTC)
Expired
Aug 15, 2024, 12:15 AM CDT
In force
47 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, Clay County, MO, Clinton County, MO, Jackson County, MO

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

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

IssuedProductOfficeLasted
Aug 14, 5:34 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 4.5 hours before the alert went out and 103 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 2024-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4529 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Topeka, KS at 00:00Z on 2024-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 227 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
4529 J/kg
Mixed-layer CIN
-25 J/kg
Mixed-layer LCL
1108 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
227 m²/s²
0-3 km storm-relative helicity
440 m²/s²
Significant tornado parameter
7.7
Supercell composite
44.6

Open this sounding in Storm Lab

The text

As transmitted.

661 
WUUS53 KEAX 150428
SVREAX
KSC209-MOC047-049-095-150515-
/O.NEW.KEAX.SV.W.0367.240815T0428Z-240815T0515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Kansas City/Pleasant Hill MO
Issued by National Weather Service Topeka KS
1128 PM CDT Wed Aug 14 2024

The National Weather Service in Pleasant Hill has issued a

* Severe Thunderstorm Warning for...
  East central Wyandotte County in northeastern Kansas...
  Southern Clinton County in northwestern Missouri...
  Clay County in west central Missouri...
  Northern Jackson County in west central Missouri...

* Until 1215 AM CDT.

* At 1128 PM CDT, severe thunderstorms were located along a line
  extending from near Edgerton to Weatherby Lake to 3 miles northwest
  of Kansas City, moving east at 50 mph.

  HAZARD...70 mph wind gusts.

  SOURCE...Trained weather spotters.

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

* Locations impacted include...
  Kansas City, Independence, Liberty, Gladstone, Excelsior Springs,
  Smithville, Kearney, North Kansas City, Sugar Creek, Lawson,
  Plattsburg, Lathrop, Claycomo, Courtney, Pleasant Valley, Trimble,
  Glenaire, Holt, Avondale, and Oakview.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3916 9461 3916 9460 3954 9460 3960 9421
      3909 9421 3909 9462
TIME...MOT...LOC 0428Z 255DEG 44KT 3953 9463 3924 9469 3917 9477 

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

$$

Krull
2 follow-up statements
833 
WWUS53 KEAX 150451
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
Issued by National Weather Service Topeka KS
1151 PM CDT Wed Aug 14 2024

KSC209-MOC047-049-095-150515-
/O.CON.KEAX.SV.W.0367.000000T0000Z-240815T0515Z/
Wyandotte-Clinton-Clay-Jackson-
1151 PM CDT Wed Aug 14 2024

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT
FOR EAST CENTRAL WYANDOTTE...SOUTHERN CLINTON...CLAY AND NORTHERN
JACKSON COUNTIES...

At 1150 PM CDT, severe thunderstorms were located along a line
extending from 5 miles east of Lathrop to 3 miles north of Missouri
City to near River Bend, moving east at 35 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Kansas City, Independence, Liberty, Gladstone, Excelsior Springs,
Smithville, Kearney, North Kansas City, Sugar Creek, Lawson,
Plattsburg, Lathrop, Claycomo, Courtney, Pleasant Valley, Trimble,
Glenaire, Holt, Avondale, and Oakview.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3916 9461 3916 9460 3954 9460 3960 9421
      3909 9421 3909 9462
TIME...MOT...LOC 0450Z 254DEG 32KT 3957 9422 3928 9428 3921 9436 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Krull
932 
WWUS53 KEAX 150512
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
Issued by National Weather Service Topeka KS
1212 AM CDT Thu Aug 15 2024

KSC209-MOC047-049-095-150522-
/O.EXP.KEAX.SV.W.0367.000000T0000Z-240815T0515Z/
Wyandotte-Clinton-Clay-Jackson-
1212 AM CDT Thu Aug 15 2024

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL WYANDOTTE...
SOUTHERN CLINTON...CLAY AND NORTHERN JACKSON COUNTIES WILL EXPIRE AT
1215 AM CDT...

The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.  However, gusty
winds are still possible with these thunderstorms.

A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
northeastern Kansas...and northwestern and west central Missouri.

&&

LAT...LON 3916 9461 3916 9460 3954 9460 3960 9421
      3909 9421 3909 9462
TIME...MOT...LOC 0512Z 255DEG 44KT 3964 9388 3935 9394 3928 9402 

$$

Krull

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Kansas City, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 14, 11:07 PM CDT, 21 minutes earlier. Its key messages:

  • Strong to severe storms possible this evening into the overnight.
  • Additional storms, some strong to severe, are possible Thursday.
Area forecast discussion, Aug 14, 11:07 PM CDT, 21 minutes before
Area Forecast Discussion
National Weather Service Kansas City/Pleasant Hill MO
Issued by National Weather Service Louisville KY
1107 PM CDT Wed Aug 14 2024

.KEY MESSAGES...

- Strong to severe storms possible this evening into the
  overnight.

- Additional storms, some strong to severe, are possible
  Thursday.

&&

.UPDATE...
Issued at 1051 PM CDT Wed Aug 14 2024

 Line of strong to severe storms continues to push through a
corridor of maximized MUCAPE showing up on plan view analysis
and ACARS sounding out of MCI. Sounding does show a very
shallow stable layer, CIN has increased regionwide as we
progress deeper into the nighttime hours, and radar shows the
storms west of the KC metro becoming largely outflow dominated.
Still, gusts recently reached 59mph at the Topeka NWS office and
warnings are being issued downstream ahead of a bowing segment
coming in to Leavenworth County in a localized maximum of steep
mid level lapse rates and DCAPE 1300-1400 J/kg. These storms
may threaten the Kansas City metro, especially along and north
of Interstate 70.

Though the storms may lose some of their punch as they cross
northern Missouri, as has already been seen in the storms from
St Joseph northward, a severe threat will persist for a few more
hours and Severe Thunderstorm Watch 622 has been expanded about
two rows of counties eastward per collaboration with SPC. At
this time it appears unlikely that the watch will need to be
extended in time beyond 06Z, but will continue to monitor.

Issued at 836 PM CDT Wed Aug 14 2024

An elongated broken band of strong to severe storms continue to
advance eastward this evening across central and eastern Kansas.
Storms are already advancing into our far NW CWA (Atchison
County) but this activity has been sub-severe and will likely
continue to weaken with eastward extent.

Farther south, a mixture of linear segments and supercellular
structures are being observed north of Manhattan/Topeka Kansas.
Reports of hail and even a tornado have been observed with these
storms.

Overall environment for surface based storms becomes less
favorable with eastward extent as SPC Mesoanalysis shows a
fairly strong MLCIN gradient near and east of the KS/MO borders.
Still, modest deep layer shear and elevated instability will
keep an organized storm threat going for the areas within the
Severe Thunderstorm Watch.

Issued at 701 PM CDT Wed Aug 14 2024

Heat index values have dropped below criteria levels so the heat
advisory has been allowed to expire on time.

Issued at 557 PM CDT Wed Aug 14 2024

Severe Thunderstorm Watch 622 has been issued for northwestern
portions of the region. Strong to severe storms have already
formed in portions of central Kansas and this activity will
gradually slide eastward through the remaining evening and
overnight hours.

&&

.DISCUSSION...
Issued at 316 PM CDT Wed Aug 14 2024

Earlier convection has pushed into central and southeastern
Missouri, with plenty of debris clouds limiting temperatures to the
upper 70s and lower 80s so far, but a very warm and moist air mass
lurks across SE Kansas and SW Missouri. PWAT values exceed 1.5
inches across eastern Kansas and there's an axis of 2" across
central Missouri. Expect a modest northward surge of the warmer and
oppressively humid air mass during the late afternoon hours, so the
Heat Advisory conditions could still be realized especially in and
south of the KC Metro.

Hi-res models suggest the effective boundary over central Kansas and
SE Nebraska will light up this evening between 00-02Z, with some
initial supercell structures possible. Steepening mid-level lapse
rates will support large hail, and there's a brief window for a
tornado threat, mainly north and west of St Joseph, before storms
congeal into a MCS that will trek across northern Missouri
overnight. Wind threat could continue as impressive DCAPE surges
north ahead of the incoming system, fading as you get farther south
and east of the I-35 corridor.

Renewed SVR threat on Thursday will depend on how quickly the
atmosphere recovers from overnight storms. Multiple disturbances in
the flow aloft could interact with a sfc cold front, and any
convection that does develop will feed off the instability and 30-40
kt of deep-layer shear. Will be another window of opportunity for
supercells and attendant tornado and hail threats, with damaging
winds as the primary threat to continue as storms organize.

By Friday a post-frontal NW flow takes over, with a modestly less
humid air mass building in. Still enough cyclonic curvature in the
upper flow to allow for some destabilization, so we can't rule out
more storms late in the day Friday.

A stretch of mostly dry weather begins on Saturday and continues
well into next week as an upper trof pushes east into the Great
Lakes and upper ridging amplifies along the Rockies. Sfc high
pressure will retreat from the Upper Midwest into the Great Lakes,
maintaining low-level easterly flow, which will result in near-
normal temperatures and seasonably muggy dewpoints. Convection on
the periphery of the high should remain focused over central
portions of Nebraska and Kansas and dive almost due south, leaving
western Missouri and northeast Kansas high and dry.

&&

.AVIATION /00Z TAFS THROUGH 00Z FRIDAY/...
Issued at 557 PM CDT Wed Aug 14 2024

Storms have begun firing off along a boundary across central Kansas
and will gradually push eastward tonight into our region. Expect
reduced cigs/vis in the heaviest showers and storms. Drier air will
work in behind the storms tomorrow morning and give way to some
clearing. Can't rule out additional storms developing late in the
forecast period as a cold front pushes through but confidence in
those remains too low to warrant mention at this time.

Winds during the forecast period will generally remain out of the
south through the morning hours (except in thunderstorms), but a
gradual turning to the west is anticipated as the front
approaches.

&&

.EAX WATCHES/WARNINGS/ADVISORIES...
MO...None.
KS...None.

&&

UPDATE...WFO Louisville/13
DISCUSSION...WFO Louisville
AVIATION...WFO Louisville
Hazardous weather outlook, Aug 14, 10:47 PM CDT, 41 minutes before
Hazardous Weather Outlook
National Weather Service Kansas City/Pleasant Hill MO
Issued by National Weather Service Louisville KY
1047 PM CDT Wed Aug 14 2024

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-160400-
Atchison KS-Miami-Linn KS-Doniphan-Leavenworth-Wyandotte-Johnson KS-
Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-Schuyler-
Holt-Andrew-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-Clinton-
Caldwell-Livingston-Linn MO-Macon-Platte-Clay-Ray-Carroll-Chariton-
Randolph-Jackson-Lafayette-Saline-Howard-Cass-Johnson MO-Pettis-
Cooper-Bates-Henry-
1047 PM CDT Wed Aug 14 2024

This hazardous weather outlook is for northwest...north central and
west central Missouri...as well as extreme eastern Kansas.

.DAY ONE...Tonight

 A few severe storms are possible tonight, especially along and west
of a line from Lexington to Princeton. Strong gusty winds will be the
main threat, with large hail and an isolated tornado or two secondary
threats. Heavy rain may lead to localized flooding in some areas.

 More detailed information can be accessed at...
 https://www.weather.gov/eax/hwo

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday

 Thunderstorms are possible Thursday. A few storms may be strong to
severe.
 Additional thunderstorms are possible through the end of week.

 More detailed information can be accessed at...
 https://www.weather.gov/eax/hwo

LMK/13

In the hours before

Local storm report, Aug 14, 11:16 PM CDT, 12 minutes before
Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
1116 PM CDT Wed Aug 14 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1104 PM     Tstm Wnd Gst     3 E Jarbalo             39.20N 95.01W
08/14/2024  M77 MPH          Leavenworth        KS   Emergency Mngr

&&

BMW
Local storm report, Aug 14, 11:19 PM CDT, 9 minutes before
Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
1119 PM CDT Wed Aug 14 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1103 PM     Tstm Wnd Gst     3 W Jarbalo             39.20N 95.12W
08/14/2024  E60 MPH          Leavenworth        KS   Trained Spotter

&&

BMW
Local storm report, Aug 14, 11:21 PM CDT, 7 minutes before
Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
1121 PM CDT Wed Aug 14 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1109 PM     Tstm Wnd Gst     3 E Jarbalo             39.20N 95.01W
08/14/2024  M81 MPH          Leavenworth        KS   Emergency Mngr

&&

BMW
Local storm report, Aug 14, 11:23 PM CDT, 5 minutes before
Preliminary Local Storm Report
National Weather Service Kansas City/Pleasant HIll MO
1123 PM CDT Wed Aug 14 2024

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1115 PM     Tstm Wnd Dmg     1 SW Lansing            39.24N 94.91W
08/14/2024                   Leavenworth        KS   Emergency Mngr

            Large tree downed blocking roadway.

&&

BMW

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 8:44 PM CDTSevere Thunderstorm WarningEAXAtchison, Holt, Nodaway31 min
Aug 14, 9:09 PM CDTSevere Thunderstorm WarningEAXAtchison, Holt, Nodaway, Worth36 min
Aug 14, 9:22 PM CDTSevere Thunderstorm WarningEAXAndrew, Holt38 min
Aug 14, 9:46 PM CDTSevere Thunderstorm WarningEAXGentry, Holt, Nodaway, Worth44 min
Aug 14, 9:53 PM CDTSevere Thunderstorm WarningEAXAndrew, Buchanan, Gentry, Holt37 min
Aug 14, 10:55 PM CDTSevere Thunderstorm WarningEAXPlatte50 min
Aug 14, 11:05 PM CDTSevere Thunderstorm WarningEAXPlatte40 min
Aug 14, 11:20 PM CDTSevere Thunderstorm Warning Destructive damage threatEAXPlatte25 min
Aug 14, 11:57 PM CDTSpecial Weather StatementEAXCaldwell, Ray33 min
Aug 15, 3:22 AM CDTSpecial Weather StatementEAXSaline53 min
Aug 15, 8:47 AM CDTRiver Flood WarningEAXDaviess, Gentry10 hr
Aug 15, 4:22 PM CDTSpecial Weather StatementEAXAndrew23 min
Aug 15, 4:40 PM CDTSpecial Weather StatementEAXAndrew35 min
Aug 15, 5:02 PM CDTSevere Thunderstorm WarningEAXAndrew, Buchanan, Clinton, DeKalb28 min
Aug 15, 5:27 PM CDTSevere Thunderstorm WarningEAXDeKalb48 min
Aug 15, 5:38 PM CDTSevere Thunderstorm WarningEAXDaviess, Gentry, Harrison52 min
Aug 15, 5:51 PM CDTSevere Thunderstorm WarningEAXCaldwell, Daviess39 min
Aug 15, 6:28 PM CDTSpecial Weather StatementEAXHarrison32 min
Aug 15, 6:30 PM CDTSpecial Weather StatementEAXLivingston30 min
Aug 14, 10:46 PM CDTSevere Thunderstorm WarningEAXAtchison, Leavenworth29 min
Aug 15, 1:25 AM CDTSpecial Weather StatementEAXLinn, Miami50 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2024Severe Thunderstorm Warnings in Kansas, 2024Every severe thunderstorm warning in 2024

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.