Alert archive / Missouri / Tornado Warnings in 2019

Tornado Warning 20, NWS St. Louis, MO

May 22, 2019Marion County, Shelby County, Missouri

NWS St. Louis, MO issued this tornado warning at May 22, 2019, 4:30 PM CDT for Marion County, Shelby County, Missouri. It was in force for 30 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
May 22, 2019, 4:30 PM CDT (21:30 UTC)
Expired
May 22, 2019, 5:00 PM CDT
In force
30 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.0 in

Counties Marion County, MO, Shelby County, MO

The radar

The St Louis radar (KLSX), 153 km from the middle of the area, began a volume at 21:32 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.

IssuedProductOfficeLasted
May 22, 4:00 PM CDTTornado WatchSPC7 hr

The nearest sounding before it

Davenport, (KDVN), launched 12:00Z, 9.5 hours before the alert went out and 236 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, Davenport, at 12:00Z on 2019-05-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Davenport, at 12:00Z on 2019-05-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 315 square meters per square second.1939587897117136Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1378 m above ground
0-6 km bulk shear
94 kt
0-1 km storm-relative helicity
315 m²/s²
0-3 km storm-relative helicity
375 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

293 
WFUS53 KLSX 222130
TORLSX
MOC127-205-222200-
/O.NEW.KLSX.TO.W.0020.190522T2130Z-190522T2200Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
430 PM CDT Wed May 22 2019

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Western Marion County in northeastern Missouri...
  Southeastern Shelby County in northeastern Missouri...

* Until 500 PM CDT.
    
* At 430 PM CDT, a severe thunderstorm capable of producing a tornado
  was located over Shelbina, moving northeast at 45 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Emden around 445 PM CDT.
  Warren around 450 PM CDT.
  Philadelphia around 455 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Hunnewell.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3972 9149 3966 9186 3966 9207 3968 9210
      3988 9193 3995 9180
TIME...MOT...LOC 2130Z 237DEG 39KT 3967 9201 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Gosselin
3 follow-up statements
144 
WWUS53 KLSX 222141
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
441 PM CDT Wed May 22 2019

MOC127-205-222200-
/O.CON.KLSX.TO.W.0020.000000T0000Z-190522T2200Z/
Marion MO-Shelby MO-
441 PM CDT Wed May 22 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR WESTERN
MARION AND EAST CENTRAL SHELBY COUNTIES...
    
At 441 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Emden, moving northeast at 45 mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Emden around 445 PM CDT.
  Warren around 450 PM CDT.
  Philadelphia around 455 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3972 9149 3970 9190 3970 9194 3973 9197
      3988 9193 3995 9180
TIME...MOT...LOC 2141Z 236DEG 39KT 3973 9191 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Gosselin
257 
WWUS53 KLSX 222152
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
452 PM CDT Wed May 22 2019

MOC205-222202-
/O.CAN.KLSX.TO.W.0020.000000T0000Z-190522T2200Z/
Shelby MO-
452 PM CDT Wed May 22 2019

...THE TORNADO WARNING FOR EAST CENTRAL SHELBY COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1100 PM CDT for northeastern
Missouri.

LAT...LON 3980 9160 3979 9159 3975 9179 3977 9184
      3988 9184 3993 9177
TIME...MOT...LOC 2152Z 237DEG 39KT 3980 9178 

$$

MOC127-222200-
/O.CON.KLSX.TO.W.0020.000000T0000Z-190522T2200Z/
Marion MO-
452 PM CDT Wed May 22 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 500 PM CDT FOR
NORTHWESTERN MARION COUNTY...
    
At 452 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Warren, moving northeast at 45 mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Philadelphia around 455 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3980 9160 3979 9159 3975 9179 3977 9184
      3988 9184 3993 9177
TIME...MOT...LOC 2152Z 237DEG 39KT 3980 9178 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

Gosselin
340 
WWUS53 KLSX 222157
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
457 PM CDT Wed May 22 2019

MOC127-222207-
/O.EXP.KLSX.TO.W.0020.000000T0000Z-190522T2200Z/
Marion MO-
457 PM CDT Wed May 22 2019

...THE TORNADO WARNING FOR NORTHWESTERN MARION COUNTY WILL EXPIRE AT
500 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

A Tornado Watch remains in effect until 1100 PM CDT for northeastern
Missouri.

LAT...LON 3980 9160 3979 9159 3975 9179 3977 9184
      3988 9184 3993 9177
TIME...MOT...LOC 2157Z 237DEG 39KT 3982 9173 

$$

Gosselin

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 22, 4:50 AM CDTRiver Flood WarningLSXMarion5 hr
May 22, 4:54 AM CDTRiver Flood WarningLSXReynolds30 hr
May 22, 10:27 AM CDTAreal Flood WarningLSXLincoln5 days
May 22, 1:53 PM CDTFlash Flood WatchLSXAudrain, Boone, Callaway, Cole, Gasconade, Knox and 8 more14 hr
May 22, 4:28 PM CDTSevere Thunderstorm WarningLSXMarion, Monroe, Shelby47 min
May 22, 4:59 PM CDTSpecial Weather StatementLSXMarion31 min
May 22, 5:40 PM CDTRiver Flood WarningLSXJefferson3 days

Nearby

Tornado Warnings in Missouri, 2019Every tornado warning in 2019Tornadoes 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.