Alert archive / Missouri / Tornado Warnings in 2019

Tornado Warning 35, NWS St. Louis, MO

May 25, 2019Shelby County, Missouri

NWS St. Louis, MO issued this tornado warning at May 25, 2019, 9:15 PM CDT for Shelby County, Missouri. It was in force for 45 min. 3 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
May 25, 2019, 9:15 PM CDT (02:15 UTC)
Expired
May 25, 2019, 10:00 PM CDT
In force
45 min
Issued by
NWS St. Louis, MO
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.75 in

County Shelby County, MO

The radar

The St Louis radar (KLSX), 174 km from the middle of the area, began a volume at 02:15 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

TimeReportWhereRemark
May 25, 9:20 PM CDTTSTM WND DMG4 Nw Leonard, MOSEVERAL TREES WERE BLOWN DOWN NEAR THE INTERSECTION OF HIGHWAY B AND COUNTY ROAD 118.
May 25, 9:25 PM CDTTSTM WND DMGLeonard, MOSEVERAL TREES WERE BLOWN DOWN ON THE WEST SIDE OF LEONARD.
May 25, 9:40 PM CDTTSTM WND DMGBethel, MOA POWER POLE WAS BLOWN DOWN IN TOWN.

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.

IssuedProductOfficeLasted
May 25, 7:16 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Davenport, (KDVN), launched 00:00Z, 2.3 hours before the alert went out and 233 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 00:00Z on 2019-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 710 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2019-05-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 72 square meters per square second.1939587897117Sfc1 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
710 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
1232 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
72 m²/s²
0-3 km storm-relative helicity
139 m²/s²
Significant tornado parameter
0.4
Supercell composite
6.3

Open this sounding in Storm Lab

The text

As transmitted.

889 
WFUS53 KLSX 260215
TORLSX
MOC205-260300-
/O.NEW.KLSX.TO.W.0035.190526T0215Z-190526T0300Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service St Louis MO
915 PM CDT Sat May 25 2019

The National Weather Service in St Louis has issued a

* Tornado Warning for...
  Northern Shelby County in northeastern Missouri...

* Until 1000 PM CDT.
    
* At 915 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 9 miles north of Clarence, moving east at 45 mph.

  HAZARD...Tornado and golf ball 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...
  Shelbyville around 930 PM CDT.
  Emden around 945 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Leonard and Bethel.

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 3994 9184 3972 9185 3982 9229 3995 9229
TIME...MOT...LOC 0215Z 280DEG 38KT 3988 9225 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

TES
3 follow-up statements
764 
WWUS53 KLSX 260224
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
924 PM CDT Sat May 25 2019

MOC205-260300-
/O.CON.KLSX.TO.W.0035.000000T0000Z-190526T0300Z/
Shelby MO-
924 PM CDT Sat May 25 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR NORTHERN
SHELBY COUNTY...
    
At 924 PM CDT, a severe thunderstorm capable of producing a tornado
was located 7 miles southwest of Plevna, moving east at 40 mph.

HAZARD...Tornado and golf ball 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...
  Shelbyville around 930 PM CDT.
  Emden around 945 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Leonard and Bethel.

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3972 9185 3986 9227 3995 9224 3994 9184
TIME...MOT...LOC 0224Z 277DEG 37KT 3988 9214 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

TES
258 
WWUS53 KLSX 260239
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
939 PM CDT Sat May 25 2019

MOC205-260300-
/O.CON.KLSX.TO.W.0035.000000T0000Z-190526T0300Z/
Shelby MO-
939 PM CDT Sat May 25 2019

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT FOR
NORTHEASTERN SHELBY COUNTY...
    
At 939 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Shelbyville, moving east at 30 mph.

HAZARD...Tornado and golf ball 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 1000 PM CDT.

Other locations impacted by this tornadic thunderstorm include
Bethel.

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.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

&&

LAT...LON 3976 9185 3984 9212 3994 9209 3994 9184
TIME...MOT...LOC 0239Z 281DEG 25KT 3986 9202 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

TES
940 
WWUS53 KLSX 260300
SVSLSX

Severe Weather Statement
National Weather Service St Louis MO
1000 PM CDT Sat May 25 2019

MOC205-260309-
/O.EXP.KLSX.TO.W.0035.000000T0000Z-190526T0300Z/
Shelby MO-
1000 PM CDT Sat May 25 2019

...THE TORNADO WARNING FOR NORTHEASTERN SHELBY COUNTY WILL EXPIRE AT
1000 PM CDT...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and 
a Severe Thunderstorm Warning remains in effect for the area.  

A Severe Thunderstorm Watch remains in effect until midnight CDT for 
northeastern Missouri.

To report severe weather, contact your nearest law enforcement
agency. They will relay your report to the National Weather Service
St Louis.

Remember, a Severe Thunderstorm Warning still remains in effect for 
eastern Shelby County.

LAT...LON 3976 9185 3984 9212 3994 9209 3994 9184
TIME...MOT...LOC 0259Z 280DEG 38KT 3982 9175 

$$

TES

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 7:21 PM CDTSevere Thunderstorm WarningLSXKnox39 min
May 25, 7:58 PM CDTSevere Thunderstorm WarningLSXKnox, Lewis47 min
May 25, 8:09 PM CDTRiver Flood WarningLSXLewis7 days
May 25, 8:33 PM CDTSevere Thunderstorm WarningLSXLewis72 min
May 25, 8:50 PM CDTSevere Thunderstorm WarningLSXKnox, Marion, Shelby55 min
May 25, 9:54 PM CDTSevere Thunderstorm WarningLSXMarion, Shelby48 min
May 25, 11:29 PM CDTFlash Flood WatchLSXKnox, Lewis, Marion, Shelby10 hr
May 26, 12:30 AM CDTAreal Flood AdvisoryLSXKnox, Lewis, Marion, Shelby6 hr
May 26, 2:21 AM CDTFlash Flood WarningLSXKnox, Lewis, Shelby7 hr
May 26, 2:45 AM CDTRiver Flood WarningLSXLewis7 days
May 26, 2:45 AM CDTRiver Flood WarningLSXMarion7 days
May 26, 2:59 AM CDTRiver Flood WarningLSXMarion60 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.