Alert archive / Missouri / Tornado Warnings in 2018

Tornado Warning 14, NWS Springfield, MO

April 13, 2018Howell County, Oregon County, Shannon County, Missouri

NWS Springfield, MO issued this tornado warning at Apr 13, 2018, 9:38 PM CDT for Howell County, Oregon County, Shannon County, Missouri. It was in force for 37 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: Apr 13, 2018, 9:38 PM CDT (02:38 UTC)
Expired: Apr 13, 2018, 10:15 PM CDT
In force: 37 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Howell County, MO, Oregon County, MO, Shannon County, MO

The radar

The Springfield radar (KSGF), 165 km from the middle of the area, began a volume at 02:38 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
Apr 13, 5:27 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.6 hours before the alert went out and 194 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: 505 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 560 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 139 m²/s²
0-3 km storm-relative helicity: 157 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.6

Open this sounding in Storm Lab

The text

As transmitted.

581 
WFUS53 KSGF 140238
TORSGF
MOC091-149-203-140315-
/O.NEW.KSGF.TO.W.0014.180414T0238Z-180414T0315Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Springfield MO
938 PM CDT FRI APR 13 2018

The National Weather Service in Springfield has issued a

* Tornado Warning for...
  Southwestern Shannon County in south central Missouri...
  East central Howell County in south central Missouri...
  Northwestern Oregon County in south central Missouri...

* Until 1015 PM CDT
    
* At 938 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 7 miles east of West Plains, moving northeast at 35
  mph.

  HAZARD...Tornado. 

  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. 

* Locations impacted include...
  Brandsville...                    Montier...
  Thomasville...                    Rover...
  Teresita...                       

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 3660 9166 3673 9181 3700 9165 3700 9154
      3689 9142
TIME...MOT...LOC 0238Z 210DEG 32KT 3672 9171 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Burchfield

3 follow-up statements

091 
WWUS53 KSGF 140249
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
949 PM CDT FRI APR 13 2018

MOC091-140259-
/O.CAN.KSGF.TO.W.0014.000000T0000Z-180414T0315Z/
Howell MO-
949 PM CDT FRI APR 13 2018

...THE TORNADO WARNING FOR EAST CENTRAL HOWELL 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 100 AM CDT for south central
Missouri.

LAT...LON 3671 9168 3679 9167 3679 9166 3687 9166
      3700 9165 3700 9154 3689 9142 3668 9159
TIME...MOT...LOC 0249Z 208DEG 32KT 3677 9159 

$$

MOC149-203-140315-
/O.CON.KSGF.TO.W.0014.000000T0000Z-180414T0315Z/
Shannon MO-Oregon MO-
949 PM CDT FRI APR 13 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR
SOUTHWESTERN SHANNON AND NORTHWESTERN OREGON COUNTIES...
    
At 949 PM CDT, a severe thunderstorm capable of producing a tornado
was located 11 miles northwest of Alton, or 14 miles east of West
Plains, moving northeast at 35 mph.

HAZARD...Tornado. 

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. 

Locations impacted include...
Montier...                        Thomasville...
Rover...                          Teresita...

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 3671 9168 3679 9167 3679 9166 3687 9166
      3700 9165 3700 9154 3689 9142 3668 9159
TIME...MOT...LOC 0249Z 208DEG 32KT 3677 9159 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Burchfield

594 
WWUS53 KSGF 140300
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1000 PM CDT FRI APR 13 2018

MOC149-203-140315-
/O.CON.KSGF.TO.W.0014.000000T0000Z-180414T0315Z/
Shannon MO-Oregon MO-
1000 PM CDT FRI APR 13 2018

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT FOR
SOUTHWESTERN SHANNON AND NORTHWESTERN OREGON COUNTIES...
    
At 1000 PM CDT, a severe thunderstorm capable of producing a tornado
was located 10 miles south of Birch Tree, or 15 miles southeast of
Mountain View, moving northeast at 35 mph.

HAZARD...Tornado. 

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. 

Locations impacted include...
Thomasville...                    

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 3694 9158 3700 9154 3689 9142 3677 9152
      3682 9160
TIME...MOT...LOC 0300Z 208DEG 32KT 3684 9151 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Burchfield

367 
WWUS53 KSGF 140306
SVSSGF

Severe Weather Statement
National Weather Service Springfield MO
1006 PM CDT FRI APR 13 2018

MOC149-203-140316-
/O.EXP.KSGF.TO.W.0014.000000T0000Z-180414T0315Z/
Shannon MO-Oregon MO-
1006 PM CDT FRI APR 13 2018

...THE TORNADO WARNING FOR SOUTHWESTERN SHANNON AND NORTHWESTERN
OREGON COUNTIES WILL EXPIRE AT 1015 PM CDT...
    
The tornado threat has diminished and the Tornado Warning has been 
cancelled. However, damaging winds remain likely and a Severe 
Thunderstorm Warning remains in effect for the area.

A tornado watch remains in effect until 100 AM CDT for south central
Missouri.

LAT...LON 3694 9158 3700 9154 3689 9142 3677 9152
      3682 9160
TIME...MOT...LOC 0306Z 210DEG 32KT 3688 9148 

$$

Burchfield

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 13, 7:05 PM CDT	Severe Thunderstorm Warning	SGF	Texas, Wright	40 min
Apr 13, 7:09 PM CDT	Areal Flood Advisory	SGF	Christian, Douglas, Taney	6 hr
Apr 13, 7:09 PM CDT	Tornado Warning	SGF	Douglas, Wright	36 min
Apr 13, 7:29 PM CDT	Tornado Warning	SGF	Texas, Wright	31 min
Apr 13, 7:49 PM CDT	Flash Flood Warning	SGF	Douglas	4 hr
Apr 13, 7:50 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Miller	40 min
Apr 13, 7:57 PM CDT	Tornado Warning	SGF	Texas	33 min
Apr 13, 8:26 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Phelps, Texas	49 min
Apr 13, 8:36 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Howell, Ozark	54 min
Apr 13, 8:37 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Shannon, Texas	38 min
Apr 13, 8:40 PM CDT	Tornado Warning	SGF	Phelps	35 min
Apr 13, 8:49 PM CDT	Tornado Warning	SGF	Howell, Ozark	26 min
Apr 13, 9:30 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Oregon, Shannon	60 min
Apr 13, 10:32 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	21 min
Apr 14, 3:04 AM CDT	Freeze Warning	SGF	Barry, Barton, Cedar, Christian, Dade, Dallas and 16 more	30 hr
Apr 14, 6:37 AM CDT	Areal Flood Advisory	SGF	Douglas, Texas, Webster, Wright	6 hr
Apr 14, 12:26 PM CDT	Areal Flood Advisory	SGF	Douglas, Texas, Wright	10 hr

Nearby

Tornado Warnings in Missouri, 2018 Every tornado warning in 2018 Tornadoes in 2018

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.