Alert archive / Missouri / Tornado Warnings in 2010

Tornado Warning 13, NWS Springfield, MO

April 30, 2010Oregon County, Shannon County, Missouri

NWS Springfield, MO issued this tornado warning at Apr 30, 2010, 8:24 PM CDT for Oregon County, Shannon County, Missouri. It was in force for 66 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 30, 2010, 8:24 PM CDT (01:24 UTC)
Expired: Apr 30, 2010, 9:30 PM CDT
In force: 66 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon

Counties Oregon County, MO, Shannon County, MO

The radar

The St Louis radar (KLSX), 192 km from the middle of the area, began a volume at 01:25 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 30, 6:24 PM CDT	Tornado Watch	SPC	3 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 1.4 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-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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1925 m above ground
0-6 km bulk shear: 81 kt
0-1 km storm-relative helicity: -209 m²/s²
0-3 km storm-relative helicity: 122 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

434 
WFUS53 KSGF 010124
TORSGF
MOC149-203-010230-
/O.NEW.KSGF.TO.W.0013.100501T0124Z-100501T0230Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
824 PM CDT FRI APR 30 2010

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN OREGON COUNTY IN SOUTH CENTRAL MISSOURI...
  SOUTHERN SHANNON COUNTY IN SOUTH CENTRAL MISSOURI...

* UNTIL 930 PM CDT.

* AT 819 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
  A LARGE AND EXTREMELY DANGEROUS TORNADO 4 MILES SOUTH OF ROVER...OR
  12 MILES NORTHWEST OF THAYER...MOVING NORTHEAST AT 40 MPH.

* LOCATIONS IMPACTED INCLUDE ALTON...BIRCH TREE...GREER...
  KOSHKONONG...ROVER...THOMASVILLE...WILDERNESS AND WINONA.

IN ADDITION TO A TORNADO...THIS STORM IS CAPABLE OF PRODUCING
DESTRUCTIVE STRAIGHT LINE WINDS IN EXCESS OF 70 MPH.

ANOTHER TORNADO WARNING REMAINS IN EFFECT FOR CENTRAL SHANNON COUNTY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

&&

LAT...LON 3709 9103 3708 9122 3683 9122 3682 9111
      3673 9112 3657 9168 3689 9167 3725 9113
      3721 9113 3721 9110 3719 9109 3717 9105
      3714 9102
TIME...MOT...LOC 0123Z 240DEG 34KT 3669 9160

$$

FOSTER

3 follow-up statements

674 
WWUS53 KSGF 010136
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
836 PM CDT FRI APR 30 2010

MOC149-203-010230-
/O.CON.KSGF.TO.W.0013.000000T0000Z-100501T0230Z/
SHANNON MO-OREGON MO-
836 PM CDT FRI APR 30 2010

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR NORTHERN
OREGON AND SOUTHERN SHANNON COUNTIES...

AT 833 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO NEAR THOMASVILLE...OR 18 MILES SOUTHEAST OF
MOUNTAIN VIEW...MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDE ALTON...BIRCH TREE...GREER...WILDERNESS 
AND WINONA.

IN ADDITION TO A TORNADO...THIS STORM IS CAPABLE OF PRODUCING
DESTRUCTIVE STRAIGHT LINE WINDS IN EXCESS OF 70 MPH.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. GET UNDER A
WORKBENCH OR OTHER PIECE OF STURDY FURNITURE. IF NO BASEMENT IS
AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE BUILDING IN AN
INTERIOR HALLWAY OR ROOM SUCH AS A CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR BODY AND ALWAYS STAY AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT SATURDAY MORNING
FOR SOUTHWESTERN MISSOURI.

&&

LAT...LON 3709 9103 3708 9122 3683 9122 3682 9111
      3673 9112 3657 9168 3689 9167 3725 9113
      3721 9113 3721 9110 3719 9109 3717 9105
      3714 9102
TIME...MOT...LOC 0135Z 233DEG 40KT 3681 9147

$$

FOSTER

934 
WWUS53 KSGF 010203
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
903 PM CDT FRI APR 30 2010

MOC149-203-010230-
/O.CON.KSGF.TO.W.0013.000000T0000Z-100501T0230Z/
SHANNON MO-OREGON MO-
903 PM CDT FRI APR 30 2010

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR NORTHERN
OREGON AND SOUTH CENTRAL SHANNON COUNTIES...

AT 857 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A TORNADO 5 MILES NORTH OF GREER...OR 22 MILES SOUTHEAST OF 
MOUNTAIN VIEW...MOVING NORTHEAST AT 45 MPH.

LOCATIONS IMPACTED INCLUDES GREER.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 200 AM CDT SATURDAY MORNING
FOR SOUTHWESTERN MISSOURI. A TORNADO WATCH ALSO REMAINS IN EFFECT
UNTIL 300 AM CDT SATURDAY MORNING FOR SOUTH CENTRAL MISSOURI.

&&

LAT...LON 3661 9156 3688 9158 3696 9141 3706 9123
      3683 9122 3682 9111 3673 9112
TIME...MOT...LOC 0202Z 231DEG 39KT 3688 9130

$$

FOSTER

623 
WWUS53 KSGF 010225
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
925 PM CDT FRI APR 30 2010

MOC149-203-010235-
/O.EXP.KSGF.TO.W.0013.000000T0000Z-100501T0230Z/
SHANNON MO-OREGON MO-
925 PM CDT FRI APR 30 2010

...THE TORNADO WARNING FOR NORTHERN OREGON AND SOUTH CENTRAL SHANNON
COUNTIES WILL EXPIRE AT 930 PM CDT...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE STORM THAT 
PROMPTED THE WARNING HAD WEAKENED AND EXITED THE AREA...THUS THE 
WARNING HAS BEEN ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT SATURDAY MORNING
FOR SOUTH CENTRAL MISSOURI.

LAT...LON 3661 9156 3688 9158 3696 9141 3706 9123
      3683 9122 3682 9111 3673 9112
TIME...MOT...LOC 0225Z 231DEG 39KT 3704 9106

$$

FOSTER

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 30, 7:28 PM CDT	Severe Thunderstorm Warning	SGF	Howell	47 min
Apr 30, 7:38 PM CDT	Tornado Warning	SGF	Howell, Oregon, Shannon	52 min
Apr 30, 7:45 PM CDT	Tornado Warning	SGF	Dent, Shannon	45 min

Nearby

Tornado Warnings in Missouri, 2010 Every tornado warning in 2010 Tornadoes in 2010

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.