Alert archive / Missouri / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 27, NWS Quad Cities, IA

June 22, 2021Clark County, Scotland County, Missouri; Van Buren County, Iowa

NWS Quad Cities, IA issued this severe thunderstorm warning at Jun 22, 2021, 7:56 PM CDT for Clark County, Scotland County, Missouri; Van Buren County, Iowa. It was in force for 49 min. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jun 22, 2021, 7:56 PM CDT (00:56 UTC)
Expired: Jun 22, 2021, 8:45 PM CDT
In force: 49 min
Issued by: NWS Quad Cities, IA
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Van Buren County, IA, Clark County, MO, Scotland County, MO

The radar

The Quad Cities radar (KDVN), 163 km from the middle of the area, began a volume at 01:00 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.

What was reported inside it

Time	Report	Where	Remark
Jun 22, 8:08 PM CDT	HAIL 0.88	3 Ene Charlie Heath Mem, MO	HAIL STARTED AS PEA AND HAS INCREASED TO BETWEEN DIIME AND NICKEL SIZE.
Jun 22, 8:12 PM CDT	HAIL 1	3 W Charlie Heath Memor, MO	OCCURRING RIGHT NOW.
Jun 22, 8:37 PM CDT	HAIL 0.25	Kahoka, MO	WIND STARTING TO PICK UP.
Jun 22, 8:39 PM CDT	HAIL 0.25	2 N Kahoka, MO	OCCURRING RIGHT NOW.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 0.9 hours before the alert went out and 168 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: 9 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 1794 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 104 m²/s²
0-3 km storm-relative helicity: 238 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

570 
WUUS53 KDVN 230056
SVRDVN
IAC177-MOC045-199-230145-
/O.NEW.KDVN.SV.W.0027.210623T0056Z-210623T0145Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Quad Cities IA/IL
756 PM CDT Tue Jun 22 2021

The National Weather Service in the Quad Cities has issued a

* Severe Thunderstorm Warning for...
  Southeastern Van Buren County in southeastern Iowa...
  Northeastern Scotland County in northeastern Missouri...
  Northwestern Clark County in northeastern Missouri...

* Until 845 PM CDT.

* At 756 PM CDT, a severe thunderstorm was located near
  Bentonsport/Vernon, or near Keosauqua, moving southeast at 30 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Luray and Kahoka.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.

&&

LAT...LON 4068 9203 4069 9179 4038 9164 4038 9196
      4042 9197
TIME...MOT...LOC 0056Z 328DEG 28KT 4066 9190 

HAIL...1.25IN
WIND...60MPH
 
$$

McClure

5 follow-up statements

965 
WWUS53 KDVN 230112
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
812 PM CDT Tue Jun 22 2021

IAC177-MOC045-199-230145-
/O.CON.KDVN.SV.W.0027.000000T0000Z-210623T0145Z/
Van Buren IA-Scotland MO-Clark MO-
812 PM CDT Tue Jun 22 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR SOUTHEASTERN VAN BUREN...EAST CENTRAL SCOTLAND AND NORTHWESTERN
CLARK COUNTIES...

At 812 PM CDT, a severe thunderstorm was located near Luray, or 11
miles northwest of Kahoka, moving southeast at 25 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Kahoka, Wyaconda, Luray, Anson, Clark City, Clark County Fairgrounds,
Chambersburg, Ashton, Heath Memorial Conservation Area and Medill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
the Quad Cities.

&&

LAT...LON 4060 9195 4065 9177 4038 9164 4038 9196
      4042 9196
TIME...MOT...LOC 0112Z 328DEG 21KT 4055 9186 

HAIL...1.25IN
WIND...60MPH
 
$$

McClure

556 
WWUS53 KDVN 230113
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
813 PM CDT Tue Jun 22 2021

IAC177-230123-
/O.CAN.KDVN.SV.W.0027.000000T0000Z-210623T0145Z/
Van Buren IA-
813 PM CDT Tue Jun 22 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN VAN BUREN COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4060 9195 4061 9177 4038 9164 4038 9196
      4042 9196
TIME...MOT...LOC 0113Z 325DEG 20KT 4053 9184 

$$

MOC045-199-230145-
/O.CON.KDVN.SV.W.0027.000000T0000Z-210623T0145Z/
Scotland MO-Clark MO-
813 PM CDT Tue Jun 22 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR EAST CENTRAL SCOTLAND AND NORTHWESTERN CLARK COUNTIES...

At 813 PM CDT, a severe thunderstorm was located near Luray, or 9
miles northwest of Kahoka, moving southeast at 25 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Trained weather spotters.

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

Locations impacted include...
Kahoka, Wyaconda, Luray, Anson, Clark City, Clark County Fairgrounds,
Chambersburg, Ashton, Heath Memorial Conservation Area and Medill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
the Quad Cities.

&&

LAT...LON 4060 9195 4061 9177 4038 9164 4038 9196
      4042 9196
TIME...MOT...LOC 0113Z 325DEG 20KT 4053 9184 

HAIL...1.25IN
WIND...60MPH
 
$$

McClure

200 
WWUS53 KDVN 230126
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
826 PM CDT Tue Jun 22 2021

MOC199-230136-
/O.CAN.KDVN.SV.W.0027.000000T0000Z-210623T0145Z/
Scotland MO-
826 PM CDT Tue Jun 22 2021

...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL SCOTLAND COUNTY
IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 4052 9189 4056 9174 4038 9164 4038 9189
TIME...MOT...LOC 0126Z 328DEG 28KT 4044 9177 

$$

MOC045-230145-
/O.CON.KDVN.SV.W.0027.000000T0000Z-210623T0145Z/
Clark MO-
826 PM CDT Tue Jun 22 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR NORTHWESTERN CLARK COUNTY...

At 826 PM CDT, a severe thunderstorm was located over Kahoka, moving
southeast at 30 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...
Kahoka, Luray, Clark City, Clark County Fairgrounds, Chambersburg,
Ashton and Medill.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
the Quad Cities.

&&

LAT...LON 4052 9189 4056 9174 4038 9164 4038 9189
TIME...MOT...LOC 0126Z 328DEG 28KT 4044 9177 

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

McClure

167 
WWUS53 KDVN 230136
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
836 PM CDT Tue Jun 22 2021

MOC045-230145-
/O.CON.KDVN.SV.W.0027.000000T0000Z-210623T0145Z/
Clark MO-
836 PM CDT Tue Jun 22 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR CENTRAL CLARK COUNTY...

At 836 PM CDT, a severe thunderstorm was located over Kahoka, moving
southeast at 35 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...
Kahoka, Clark City, Clark County Fairgrounds, Ashton and Medill. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

To report severe weather contact your nearest law enforcement agency.
They will send your report to the National Weather Service office in
the Quad Cities.

&&

LAT...LON 4045 9185 4049 9171 4038 9164 4038 9183
TIME...MOT...LOC 0136Z 324DEG 31KT 4040 9173 

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

McClure

956 
WWUS53 KDVN 230144
SVSDVN

Severe Weather Statement
National Weather Service Quad Cities IA/IL
844 PM CDT Tue Jun 22 2021

MOC045-230154-
/O.EXP.KDVN.SV.W.0027.000000T0000Z-210623T0145Z/
Clark MO-
844 PM CDT Tue Jun 22 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CLARK COUNTY WILL
EXPIRE AT 845 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.

LAT...LON 4045 9185 4049 9171 4038 9164 4038 9183
TIME...MOT...LOC 0144Z 328DEG 28KT 4036 9169 

$$

McClure

The office that day

Everything else NWS Quad Cities, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 22, 7:15 PM CDT	Severe Thunderstorm Warning	DVN	Van Buren	45 min
Jun 22, 7:46 PM CDT	Special Weather Statement	DVN	Des Moines	29 min
Jun 22, 8:17 PM CDT	Special Weather Statement	DVN	Washington	28 min
Jun 22, 8:50 PM CDT	Special Weather Statement	DVN	Washington	25 min
Jun 22, 9:00 PM CDT	Special Weather Statement	DVN	Keokuk	45 min
Jun 22, 9:42 PM CDT	Special Weather Statement	DVN	Jefferson	48 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2021 Severe Thunderstorm Warnings in Iowa, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.