Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 313, NWS Springfield, MO

October 13, 2012Laclede County, Wright County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Oct 13, 2012, 9:39 PM CDT for Laclede County, Wright County, Missouri. It was in force for 25 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: Oct 13, 2012, 9:39 PM CDT (02:39 UTC)
Expired: Oct 13, 2012, 10:04 PM CDT
In force: 25 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Laclede County, MO, Wright County, MO

The radar

The Springfield radar (KSGF), 78 km from the middle of the area, began a volume at 02:40 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
Oct 13, 5:57 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 2.7 hours before the alert went out and 127 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: 135 J/kg
Mixed-layer CIN: -101 J/kg
Mixed-layer LCL: 729 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 347 m²/s²
0-3 km storm-relative helicity: 420 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 6.5

Open this sounding in Storm Lab

The text

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

598 
WUUS53 KSGF 140239
SVRSGF
MOC105-229-140330-
/O.NEW.KSGF.SV.W.0313.121014T0239Z-121014T0330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
939 PM CDT SAT OCT 13 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN LACLEDE COUNTY IN SOUTHWEST MISSOURI...
  NORTHERN WRIGHT COUNTY IN SOUTHWEST MISSOURI...

* UNTIL 1030 PM CDT

* AT 935 PM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
  LINE EXTENDING FROM CONWAY TO 6 MILES SOUTH OF CONWAY TO 13 MILES
  SOUTH OF CONWAY...AND MOVING NORTHEAST AT 40 MPH.

  HAZARD...60 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED. 

  IMPACT...MINOR TREE DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER
           BROKEN.

  A TREE WAS DOWNED AND 50 MPH WINDS WERE REPORTED NEAR MARSHFIELD   
  WITH THESE STORMS.

* LOCATIONS IMPACTED INCLUDE...
  COMPETITION...CONWAY...DRY KNOB...EXTREME SOUTHWESTERN FORT LEONARD
  WOOD...FALCON...GROVESPRING...LYNCHBURG...MORGAN...PHILLIPSBURG AND
  TWIN BRIDGES.

INTERSTATE 44 BETWEEN MILE MARKERS 110 AND 120 WILL ALSO BE IMPACTED
BY SEVERE THUNDERSTORMS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT SUNDAY MORNING
FOR SOUTHEAST KANSAS AND SOUTHWEST MISSOURI.

LAT...LON 3748 9269 3749 9285 3757 9285 3772 9241
      3764 9225 3744 9225 3729 9269
TIME...MOT...LOC 0239Z 247DEG 36KT 3750 9277 3743 9274
          3733 9279

HAIL...<.75IN
WIND...60 MPH

$$

WISE

2 follow-up statements

967 
WWUS53 KSGF 140256
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
956 PM CDT SAT OCT 13 2012

MOC105-229-140330-
/O.CON.KSGF.SV.W.0313.000000T0000Z-121014T0330Z/
LACLEDE MO-WRIGHT MO-
956 PM CDT SAT OCT 13 2012

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT FOR NORTHERN
WRIGHT AND SOUTHEASTERN LACLEDE COUNTIES UNTIL 1030 PM CDT...

AT 953 PM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED ALONG A
LINE EXTENDING FROM 27 MILES SOUTHWEST OF FORT LEONARD WOOD TO 28
MILES SOUTHWEST OF FORT LEONARD WOOD TO 32 MILES SOUTHWEST OF FORT
LEONARD WOOD...AND MOVING NORTHEAST AT 40 MPH.

HAZARD...60 MPH WIND GUSTS.

SOURCE...RADAR INDICATED.

IMPACT...MINOR TREE DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER
         BROKEN.

LOCATIONS IMPACTED INCLUDE...
COMPETITION...DRY KNOB...EXTREME SOUTHWESTERN FORT LEONARD WOOD...
FALCON...GROVESPRING...LYNCHBURG AND TWIN BRIDGES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT FOR THE WARNED AREA. TORNADOES CAN
DEVELOP QUICKLY FROM SEVERE THUNDERSTORMS. ALTHOUGH ONE IS NOT
IMMEDIATELY LIKELY...IF A TORNADO IS SPOTTED...ACT QUICKLY AND MOVE
TO A PLACE OF SAFETY INSIDE A STURDY STRUCTURE...SUCH AS A BASEMENT
OR SMALL INTERIOR ROOM.

FOR YOUR PROTECTION MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A
BUILDING.

&&

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT SUNDAY MORNING
FOR SOUTHEAST KANSAS AND SOUTHWEST MISSOURI.

LAT...LON 3739 9266 3749 9263 3756 9267 3772 9242
      3764 9225 3747 9225
TIME...MOT...LOC 0256Z 247DEG 36KT 3756 9257 3749 9254
          3743 9257

HAIL...<.75IN
WIND...60 MPH

$$

WISE

453 
WWUS53 KSGF 140304
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1004 PM CDT SAT OCT 13 2012

MOC105-229-140314-
/O.CAN.KSGF.SV.W.0313.000000T0000Z-121014T0330Z/
LACLEDE MO-WRIGHT MO-
1004 PM CDT SAT OCT 13 2012

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN WRIGHT AND
SOUTHEASTERN LACLEDE COUNTIES IS CANCELLED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED BELOW
SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR
PROPERTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT SUNDAY MORNING
FOR SOUTHEAST KANSAS AND SOUTHWEST MISSOURI.

LAT...LON 3739 9266 3749 9263 3756 9267 3772 9242
      3764 9225 3747 9225
TIME...MOT...LOC 0304Z 247DEG 36KT 3759 9247 3752 9245
          3746 9248

$$

WISE

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 13, 7:05 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Vernon	55 min
Oct 13, 7:08 PM CDT	Severe Thunderstorm Warning	SGF	Jasper, Newton	52 min
Oct 13, 7:52 PM CDT	Severe Thunderstorm Warning	SGF	Cedar, Dade	53 min
Oct 13, 7:55 PM CDT	Special Weather Statement	SGF	Lawrence	50 min
Oct 13, 8:12 PM CDT	Severe Thunderstorm Warning	SGF	Lawrence	33 min
Oct 13, 8:19 PM CDT	Tornado Warning	SGF	Lawrence	26 min
Oct 13, 8:27 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Dade, Greene, Polk	48 min
Oct 13, 8:38 PM CDT	Special Weather Statement	SGF	Polk	37 min
Oct 13, 8:43 PM CDT	Tornado Warning	SGF	Greene	32 min
Oct 13, 9:03 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Webster	42 min
Oct 13, 9:10 PM CDT	Special Weather Statement	SGF	Camden, Dallas, Laclede	65 min
Oct 13, 9:24 PM CDT	Areal Flood Advisory	SGF	McDonald, Newton	5 hr
Oct 13, 9:53 PM CDT	Special Weather Statement	SGF	Jasper	52 min
Oct 13, 9:55 PM CDT	Severe Thunderstorm Warning	SGF	Barry	33 min
Oct 13, 10:16 PM CDT	Flash Flood Warning	SGF	Greene	6 hr
Oct 13, 10:16 PM CDT	Severe Thunderstorm Warning	SGF	Stone	29 min
Oct 13, 10:41 PM CDT	Flash Flood Warning	SGF	Webster	5 hr
Oct 13, 11:18 PM CDT	Severe Thunderstorm Warning	SGF	Douglas, Ozark, Taney	57 min
Oct 14, 3:56 AM CDT	Areal Flood Warning	SGF	Greene, Webster	9 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2012 Every severe thunderstorm warning in 2012

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.