Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 78, NWS Kansas City, MO

July 9, 2021Adair County, Macon County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Jul 9, 2021, 9:23 PM CDT for Adair County, Macon County, Missouri. It was in force for 52 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: Jul 9, 2021, 9:23 PM CDT (02:23 UTC)
Expired: Jul 9, 2021, 10:15 PM CDT
In force: 52 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

Counties Adair County, MO, Macon County, MO

The radar

The Pleasant Hill radar (KEAX), 206 km from the middle of the area, began a volume at 02:24 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.

Issued	Product	Office	Lasted
Jul 9, 8:18 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 2.4 hours before the alert went out and 243 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: 1111 m above ground
0-6 km bulk shear: 50 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 114 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

109 
WUUS53 KEAX 100223
SVREAX
MOC001-121-100315-
/O.NEW.KEAX.SV.W.0078.210710T0223Z-210710T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Kansas City/Pleasant Hill MO
923 PM CDT Fri Jul 9 2021

The National Weather Service in Pleasant Hill has issued a

* Severe Thunderstorm Warning for...
  Southeastern Adair County in northeastern Missouri...
  Northeastern Macon County in north central Missouri...

* Until 1015 PM CDT.

* At 922 PM CDT, a severe thunderstorm was located near Kirksville, 
  or 7 miles northeast of La Plata, moving southeast at 25 mph.

  HAZARD...Golf ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Kirksville, La Plata, Atlanta, Brashear, Gibbs, Millard and
  Kirksville Regional.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 200 AM CDT for north central
and northeastern Missouri.

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

&&

LAT...LON 3982 9249 4021 9261 4025 9235 3995 9235
      3995 9229 3985 9229
TIME...MOT...LOC 0222Z 311DEG 22KT 4013 9243 

HAIL...1.75IN
WIND...60MPH
 
$$

Leighton

2 follow-up statements

137 
WWUS53 KEAX 100256
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
956 PM CDT Fri Jul 9 2021

MOC001-121-100315-
/O.CON.KEAX.SV.W.0078.000000T0000Z-210710T0315Z/
Adair MO-Macon MO-
956 PM CDT Fri Jul 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR SOUTHEASTERN ADAIR AND NORTHEASTERN MACON COUNTIES...

At 956 PM CDT, a severe thunderstorm was located over La Plata,
moving southeast at 50 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Kirksville, La Plata, Atlanta, Gibbs, Millard and Kirksville
Regional.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 200 AM CDT for north central
and northeastern Missouri.

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

&&

LAT...LON 3982 9249 4021 9261 4012 9235 3995 9235
      3995 9229 3985 9229
TIME...MOT...LOC 0256Z 316DEG 42KT 4006 9248 

HAIL...1.00IN
WIND...60MPH
 
$$

Leighton

365 
WWUS53 KEAX 100308
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
1008 PM CDT Fri Jul 9 2021

MOC001-121-100315-
/O.CON.KEAX.SV.W.0078.000000T0000Z-210710T0315Z/
Adair MO-Macon MO-
1008 PM CDT Fri Jul 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR SOUTHEASTERN ADAIR AND NORTHEASTERN MACON COUNTIES...

At 1008 PM CDT, a severe thunderstorm was located near La Plata,
moving southeast at 25 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
La Plata, Atlanta, Gibbs, Millard and Kirksville Regional. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 200 AM CDT for north central
and northeastern Missouri.

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

&&

LAT...LON 3982 9249 4012 9258 4012 9235 3995 9235
      3995 9229 3985 9229
TIME...MOT...LOC 0308Z 311DEG 22KT 4001 9241 

HAIL...1.00IN
WIND...60MPH
 
$$

Leighton

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 9, 8:01 PM CDT	Special Weather Statement	EAX	Schuyler	44 min
Jul 9, 8:10 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Schuyler	35 min
Jul 9, 8:37 PM CDT	Special Weather Statement	EAX	Grundy	38 min
Jul 9, 8:44 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Schuyler	46 min
Jul 9, 8:50 PM CDT	Special Weather Statement	EAX	Putnam, Schuyler	40 min
Jul 9, 9:18 PM CDT	Special Weather Statement	EAX	Linn	42 min
Jul 9, 9:26 PM CDT	Special Weather Statement	EAX	Adair	49 min
Jul 9, 9:36 PM CDT	Tornado Warning	EAX	Adair, Macon	12 min
Jul 9, 10:07 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Macon	38 min
Jul 9, 10:44 PM CDT	Special Weather Statement	EAX	Linn, Macon, Randolph, Sullivan	46 min
Jul 9, 10:51 PM CDT	Special Weather Statement	EAX	Harrison	39 min
Jul 9, 11:28 PM CDT	Special Weather Statement	EAX	Linn, Randolph	47 min
Jul 10, 12:04 AM CDT	Severe Thunderstorm Warning	EAX	Chariton, Howard, Macon, Randolph	41 min
Jul 10, 12:53 AM CDT	Severe Thunderstorm Warning	EAX	Atchison, Holt, Nodaway, Worth	52 min
Jul 10, 1:37 AM CDT	Flash Flood Warning	EAX	Adair, Sullivan	8 hr
Jul 10, 1:40 AM CDT	Severe Thunderstorm Warning	EAX	Andrew, Atchison, DeKalb, Gentry, Holt, Nodaway and 1 more	50 min
Jul 10, 1:44 AM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Clinton, DeKalb, Platte	46 min
Jul 10, 2:09 AM CDT	Severe Thunderstorm Warning	EAX	Clay, Jackson, Platte	51 min
Jul 10, 2:28 AM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Caldwell, Clay, Clinton, Daviess, DeKalb and 2 more	47 min
Jul 10, 2:32 AM CDT	Severe Thunderstorm Warning	EAX	Andrew, Daviess, DeKalb, Gentry, Harrison, Nodaway and 1 more	43 min
Jul 10, 2:35 AM CDT	Flash Flood Warning	EAX	Linn, Macon	7 hr
Jul 10, 2:51 AM CDT	Special Weather Statement	EAX	Cass, Jackson, Johnson, Lafayette	39 min
Jul 10, 3:11 AM CDT	Special Weather Statement	EAX	Caldwell, Carroll, Daviess, Grundy, Harrison, Livingston and 2 more	49 min
Jul 10, 3:32 AM CDT	Special Weather Statement	EAX	Cass, Johnson, Lafayette, Pettis, Saline	43 min
Jul 10, 5:30 AM CDT	River Flood Warning	EAX	Chariton, Macon	3 days
Jul 10, 5:30 AM CDT	River Flood Warning	EAX	Carroll, Chariton, Linn, Livingston	5 days
Jul 10, 5:30 AM CDT	River Flood Warning	EAX	Cass, Henry, Johnson	2 hr
Jul 10, 7:46 AM CDT	River Flood Warning	EAX	Howard	13 hr
Jul 10, 8:27 AM CDT	Special Weather Statement	EAX	Bates	48 min
Jul 10, 8:47 AM CDT	Flash Flood Warning	EAX	Bates, Cass	3 hr
Jul 10, 9:45 AM CDT	Areal Flood Advisory	EAX	Adair, Linn, Macon, Sullivan	4 days
Jul 10, 3:47 PM CDT	Special Weather Statement	EAX	Atchison	43 min
Jul 10, 5:07 PM CDT	Special Weather Statement	EAX	Holt	38 min
Jul 10, 6:06 PM CDT	Special Weather Statement	EAX	Buchanan, Clinton, Daviess, DeKalb, Gentry	39 min
Jul 10, 6:18 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Clay, Clinton, Platte	27 min
Jul 10, 6:25 PM CDT	Special Weather Statement	EAX	Jackson	50 min
Jul 10, 6:47 PM CDT	Special Weather Statement	EAX	Clay, Clinton, Platte	43 min

Nearby

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