Alert archive / Missouri / Tornado Warnings in 2012

Tornado Warning 24, NWS Springfield, MO

March 20, 2012Douglas County, Missouri

NWS Springfield, MO issued this tornado warning at Mar 20, 2012, 6:44 PM CDT for Douglas County, Missouri. It was in force for 18 min. 1 report 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
Mar 20, 2012, 6:44 PM CDT (23:44 UTC)
Expired
Mar 20, 2012, 7:02 PM CDT
In force
18 min
Issued by
NWS Springfield, MO
Area
Storm-based polygon

County Douglas County, MO

The radar

The Springfield radar (KSGF), 94 km from the middle of the area, began a volume at 23:47 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
Mar 20, 6:50 PM CDTTSTM WND DMG14 Se Ava, MOEMERGENCY MANAGER RELAYED A REPORT OF WIND DAMAGE TO A BUILDING OFF OF COUNTY ROAD 333 AND HIGHWAY N

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.7 hours before the alert went out and 122 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, Springfield, MO at 12:00Z on 2012-03-20Temperature 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, Springfield, MO at 12:00Z on 2012-03-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -85 square meters per square second.1939587897Sfc1 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
660 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
-85 m²/s²
0-3 km storm-relative helicity
439 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

776 
WFUS53 KSGF 202344
TORSGF
MOC067-210015-
/O.NEW.KSGF.TO.W.0024.120320T2344Z-120321T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
644 PM CDT TUE MAR 20 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL DOUGLAS COUNTY IN SOUTHWEST MISSOURI...

* UNTIL 715 PM CDT.

* AT 642 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 4 MILES WEST OF GENTRYVILLE...OR 14 MILES SOUTHEAST OF
  AVA...MOVING NORTH AT 50 MPH.

* LOCATIONS IMPACTED INCLUDE BRUSHYKNOB...DRURY...GENTRYVILLE AND
  VANZANT.

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 3680 9250 3681 9256 3706 9251 3706 9226
      3705 9226 3680 9233 3680 9249
TIME...MOT...LOC 2344Z 191DEG 42KT 3688 9243
HAIL <.50IN

$$

WISE
2 follow-up statements
233 
WWUS53 KSGF 202354
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
654 PM CDT TUE MAR 20 2012

MOC067-210015-
/O.CON.KSGF.TO.W.0024.000000T0000Z-120321T0015Z/
DOUGLAS MO-
654 PM CDT TUE MAR 20 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR NORTH
CENTRAL DOUGLAS COUNTY...

AT 651 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO 3 MILES EAST OF BRUSHYKNOB...OR 13 MILES EAST OF
AVA...MOVING NORTH AT 45 MPH.

LOCATIONS IMPACTED INCLUDE BRUSHYKNOB.

LAT...LON 3693 9234 3697 9252 3706 9251 3706 9231
TIME...MOT...LOC 2354Z 186DEG 41KT 3699 9243
HAIL <.50IN

$$

WISE
531 
WWUS53 KSGF 210002
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
702 PM CDT TUE MAR 20 2012

MOC067-210012-
/O.CAN.KSGF.TO.W.0024.000000T0000Z-120321T0015Z/
DOUGLAS MO-
702 PM CDT TUE MAR 20 2012

...THE TORNADO WARNING FOR NORTH CENTRAL DOUGLAS COUNTY IS
CANCELLED...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE STORM THAT
PROMPTED THE WARNING HAD WEAKENED...THUS THE WARNING HAS BEEN
CANCELLED.

LAT...LON 3693 9234 3697 9252 3706 9251 3706 9231
TIME...MOT...LOC 0002Z 186DEG 41KT 3708 9242

$$

WISE

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 19, 7:21 PM CDTAreal Flood WarningSGFJasper, McDonald, Newton12 hr
Mar 19, 9:16 PM CDTAreal Flood WarningSGFBarton, Vernon10 hr
Mar 19, 9:21 PM CDTRiver Flood WarningSGFBates, Vernon9 days
Mar 19, 10:46 PM CDTSpecial Weather StatementSGFBarry44 min
Mar 19, 11:21 PM CDTSpecial Weather StatementSGFStone24 min
Mar 19, 11:50 PM CDTSpecial Weather StatementSGFTaney40 min
Mar 20, 12:09 AM CDTSevere Thunderstorm WarningSGFChristian, Douglas, Greene, Webster41 min
Mar 20, 6:52 AM CDTAreal Flood WarningSGFBarton, Jasper, McDonald, Newton, Vernon6 hr
Mar 20, 8:55 AM CDTRiver Flood WarningSGFMcDonald64 hr
Mar 20, 10:03 AM CDTRiver Flood WarningSGFStone63 hr
Mar 20, 1:01 PM CDTAreal Flood WarningSGFMcDonald, Newton22 hr
Mar 20, 4:48 PM CDTAreal Flood WarningSGFBarton, Jasper, Vernon18 hr
Mar 20, 6:08 PM CDTSpecial Weather StatementSGFOzark37 min
Mar 20, 6:13 PM CDTSevere Thunderstorm WarningSGFOzark31 min
Mar 20, 6:27 PM CDTSevere Thunderstorm WarningSGFDouglas35 min
Mar 20, 6:51 PM CDTSevere Thunderstorm WarningSGFWright39 min

Nearby

Tornado Warnings in Missouri, 2012Every tornado warning in 2012Tornadoes 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.