Alert archive / Missouri / Special Weather Statements in 2021

Special Weather Statement, NWS Kansas City, MO

October 24, 2021Henry County, Johnson County, Missouri

NWS Kansas City, MO issued this special weather statement at Oct 24, 2021, 4:07 PM CDT for Henry County, Johnson County, Missouri. It was in force for 23 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: Oct 24, 2021, 4:07 PM CDT (21:07 UTC)
Expired: Oct 24, 2021, 4:30 PM CDT
In force: 23 min
Issued by: NWS Kansas City, MO
Hail: 0.00 in
Wind: 50

Counties Henry County, MO, Johnson County, MO

The radar

The Pleasant Hill radar (KEAX), 58 km from the middle of the area, began a volume at 21:08 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 nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 9.1 hours before the alert went out and 177 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: 1036 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 1015 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 368 m²/s²
0-3 km storm-relative helicity: 374 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 7.7

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Oct 24, 3:55 PM CDT, 12 minutes earlier.

Area forecast discussion, Oct 24, 3:55 PM CDT, 12 minutes before

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Hazardous weather outlook, Oct 24, 5:15 AM CDT, 10 hours 52 minutes before

Hazardous Weather Outlook
National Weather Service Kansas City/Pleasant Hill MO
515 AM CDT Sun Oct 24 2021

KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-251015-
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-
515 AM CDT Sun Oct 24 2021

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

.DAY ONE...Today and Tonight

Scattered morning thunderstorms will continue before moving out of
the area by midday. A few of these storms may produce hail and
localized heavy rainfall.

Severe storms are possible this afternoon and early evening. The
greatest risk area is along and east of a line from Clinton to
Moberly Missouri.

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

.DAYS TWO THROUGH SEVEN...Monday through Saturday

No hazardous weather is expected.

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

In the hours before

Local storm report, Oct 24, 2:40 PM CDT, 1 hour 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
240 PM CDT SUN OCT 24 2021

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

0212 PM     TORNADO          2 NW TROY               39.81N 95.12W
10/24/2021                   DONIPHAN           KS   EMERGENCY MNGR

            EMD REPORTED VISUAL OF TORNADO WITH DEBRIS.

&&

Local storm report, Oct 24, 4:01 PM CDT, 6 minutes before

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Local storm report, Oct 24, 4:07 PM CDT, 0 minutes before

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Special weather statement, Oct 24, 4:07 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 24, 12:52 AM CDT	Special Weather Statement	EAX	Grundy	23 min
Oct 24, 1:26 AM CDT	Special Weather Statement	EAX	Buchanan	34 min
Oct 24, 5:07 AM CDT	Flash Flood Warning	EAX	Grundy, Harrison, Sullivan	5 hr
Oct 24, 8:26 AM CDT	River Flood Warning	EAX	Carroll, Chariton, Linn, Livingston	37 hr
Oct 24, 2:05 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan, Holt	40 min
Oct 24, 2:12 PM CDT	Tornado Warning Tornado observed	EAX	Andrew, Holt	33 min
Oct 24, 2:31 PM CDT	Tornado Warning	EAX	Andrew, Buchanan, DeKalb	29 min
Oct 24, 2:39 PM CDT	Tornado Warning	EAX	Andrew	23 min
Oct 24, 2:44 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Clinton, DeKalb	46 min
Oct 24, 2:51 PM CDT	Tornado Warning	EAX	Buchanan, Clinton, DeKalb	24 min
Oct 24, 3:23 PM CDT	Tornado Warning	EAX	Daviess, DeKalb, Gentry	37 min
Oct 24, 3:26 PM CDT	Tornado Warning	EAX	Caldwell, Clinton	34 min
Oct 24, 3:50 PM CDT	Tornado Warning	EAX	Caldwell, Daviess, Livingston	25 min
Oct 24, 4:10 PM CDT	Tornado Warning	EAX	Livingston	35 min
Oct 24, 4:16 PM CDT	Tornado Warning	EAX	Grundy, Harrison, Mercer	29 min
Oct 24, 4:29 PM CDT	Severe Thunderstorm Warning	EAX	Johnson, Pettis	31 min
Oct 24, 4:37 PM CDT	Tornado Warning	EAX	Linn, Livingston, Sullivan	38 min
Oct 24, 4:56 PM CDT	Severe Thunderstorm Warning	EAX	Cooper, Pettis	49 min
Oct 24, 4:57 PM CDT	Tornado Warning	EAX	Cooper, Pettis	33 min
Oct 24, 5:10 PM CDT	Tornado Warning	EAX	Adair, Linn, Macon, Sullivan	35 min
Oct 24, 5:54 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Schuyler	17 min
Oct 24, 1:04 AM CDT	Severe Thunderstorm Warning	EAX	Atchison	26 min
Oct 24, 7:34 AM CDT	Special Weather Statement	EAX	Linn	26 min
Oct 24, 7:53 AM CDT	Special Weather Statement	EAX	Linn	37 min

Nearby

Special Weather Statements in Missouri, 2021 Every special weather statement 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.