Alert archive / Missouri / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 252, NWS Kansas City, MO

August 20, 2019Adair County, Putnam County, Schuyler County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Aug 20, 2019, 8:41 AM CDT for Adair County, Putnam County, Schuyler County, Missouri. It was in force for 34 min. 1 report 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: Aug 20, 2019, 8:41 AM CDT (13:41 UTC)
Expired: Aug 20, 2019, 9:15 AM CDT
In force: 34 min
Issued by: NWS Kansas City, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Adair County, MO, Putnam County, MO, Schuyler County, MO

The radar

The Des Moines radar (KDMX), 168 km from the middle of the area, began a volume at 13:41 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
Aug 20, 8:43 AM CDT	HAIL 1	7 Wsw Livonia, MO	RELAYED THROUGH THE SHERIFF DEPARTMENT.

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

The watch it was issued in

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

Issued	Product	Office	Lasted
Aug 20, 6:18 AM CDT	Severe Thunderstorm Watch	SPC	11 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 1.7 hours before the alert went out and 227 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: 596 J/kg
Mixed-layer CIN: -157 J/kg
Mixed-layer LCL: 943 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 78 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

971 
WUUS53 KEAX 201341
SVREAX
MOC001-171-197-201415-
/O.NEW.KEAX.SV.W.0252.190820T1341Z-190820T1415Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Kansas City/Pleasant Hill MO
841 AM CDT Tue Aug 20 2019

The National Weather Service in Pleasant Hill has issued a

* Severe Thunderstorm Warning for...
  Northern Adair County in northeastern Missouri...
  Eastern Putnam County in north central Missouri...
  Schuyler County in northeastern Missouri...

* Until 915 AM CDT.

* At 840 AM CDT, a severe thunderstorm was located near Unionville,
  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...
  Unionville, Lancaster, Queen City, Greentop, Downing, Glenwood,
  Worthington and Livonia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4053 9235 4028 9235 4024 9262 4035 9286
      4038 9286 4038 9295 4046 9312 4058 9294
      4059 9264
TIME...MOT...LOC 1340Z 301DEG 30KT 4048 9289 

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

Blair

1 follow-up statement

672 
WWUS53 KEAX 201356
SVSEAX

Severe Weather Statement
National Weather Service Kansas City/Pleasant Hill MO
856 AM CDT Tue Aug 20 2019

MOC001-171-197-201415-
/O.CON.KEAX.SV.W.0252.000000T0000Z-190820T1415Z/
Adair MO-Putnam MO-Schuyler MO-
856 AM CDT Tue Aug 20 2019

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 AM CDT
FOR NORTHERN ADAIR...SOUTHEASTERN PUTNAM AND SCHUYLER COUNTIES...

At 855 AM CDT, a severe thunderstorm was located near Queen City, or
12 miles southwest of Lancaster, moving southeast at 40 mph.

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

SOURCE...Emergency management.

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

Locations impacted include...
Lancaster, Queen City, Greentop, Downing, Glenwood, Worthington and
Livonia.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 4053 9235 4028 9235 4024 9262 4035 9286
      4038 9286 4038 9288 4040 9289 4058 9263
TIME...MOT...LOC 1355Z 300DEG 33KT 4039 9269 

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

Blair

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 20, 7:07 AM CDT	Special Weather Statement	EAX	Putnam, Schuyler	53 min
Aug 20, 7:46 AM CDT	Severe Thunderstorm Warning	EAX	Adair, Putnam, Schuyler, Sullivan	44 min
Aug 20, 8:18 AM CDT	Special Weather Statement	EAX	Nodaway	27 min
Aug 20, 8:54 AM CDT	Special Weather Statement	EAX	Gentry, Harrison	36 min
Aug 20, 10:36 AM CDT	Special Weather Statement	EAX	DeKalb	24 min
Aug 20, 10:40 AM CDT	Special Weather Statement	EAX	Macon	35 min
Aug 20, 11:10 AM CDT	Special Weather Statement	EAX	Andrew	35 min
Aug 20, 11:21 AM CDT	Areal Flood Advisory	EAX	Andrew, Holt	3 hr
Aug 20, 12:15 PM CDT	Special Weather Statement	EAX	Andrew	30 min
Aug 20, 12:24 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, Holt	36 min
Aug 20, 12:27 PM CDT	Special Weather Statement	EAX	Clinton	33 min
Aug 20, 12:32 PM CDT	Flash Flood Warning	EAX	Andrew, Buchanan, Holt	3 hr
Aug 20, 12:37 PM CDT	Flash Flood Warning	EAX	Andrew, Buchanan, Holt	3 hr
Aug 20, 12:57 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan	12 min
Aug 20, 1:01 PM CDT	Special Weather Statement	EAX	Clinton	44 min
Aug 20, 1:19 PM CDT	Special Weather Statement	EAX	Buchanan	41 min
Aug 20, 1:58 PM CDT	Special Weather Statement	EAX	Clinton	32 min
Aug 20, 2:51 PM CDT	Special Weather Statement	EAX	Caldwell	24 min
Aug 20, 3:15 PM CDT	Special Weather Statement	EAX	Clinton	30 min
Aug 20, 3:39 PM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Clinton, Ray	36 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2019 Every severe thunderstorm warning in 2019

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.