Alert archive / Missouri / Tornado Warnings in 2012

Tornado Warning 21, NWS Springfield, MO

February 29, 2012Howell County, Missouri

NWS Springfield, MO issued this tornado warning at Feb 29, 2012, 2:06 AM CST for Howell County, Missouri. It was in force for 39 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: Feb 29, 2012, 2:06 AM CST (08:06 UTC)
Expired: Feb 29, 2012, 2:45 AM CST
In force: 39 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon

County Howell County, MO

The radar

The Springfield radar (KSGF), 139 km from the middle of the area, began a volume at 08:09 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

Time	Report	Where	Remark
Feb 29, 2:30 AM CST	HAIL 1	Pomona, MO
Feb 29, 2:38 AM CST	TSTM WND GST 60	White Church, MO
Feb 29, 2:40 AM CST	HAIL 1	4 S Mountain View, MO	PICTURE OF HAIL RELAYED BY BROADCAST MEDIA

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.

Issued	Product	Office	Lasted
Feb 28, 10:30 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 8.1 hours before the alert went out and 168 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: 75 J/kg
Mixed-layer CIN: -196 J/kg
Mixed-layer LCL: 595 m above ground
0-6 km bulk shear: 76 kt
0-1 km storm-relative helicity: 482 m²/s²
0-3 km storm-relative helicity: 563 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.4

Open this sounding in Storm Lab

The text

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

754 
WFUS53 KSGF 290806
TORSGF
MOC091-290845-
/O.NEW.KSGF.TO.W.0021.120229T0806Z-120229T0845Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
206 AM CST WED FEB 29 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* TORNADO WARNING FOR...
  HOWELL COUNTY IN SOUTH CENTRAL MISSOURI...

* UNTIL 245 AM CST.

* AT 205 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 13 MILES WEST OF SILOAM SPRINGS...OR 21 MILES SOUTHEAST OF
  AVA...MOVING EAST AT 65 MPH.

* LOCATIONS IMPACTED INCLUDE MOUNTAIN VIEW AND WILLOW SPRINGS.

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.

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 3676 9211 3679 9211 3680 9210 3705 9209
      3705 9166 3679 9166 3679 9168 3676 9168
TIME...MOT...LOC 0806Z 262DEG 58KT 3682 9230
HAIL 1.00IN

$$

CRAMER

2 follow-up statements

651 
WWUS53 KSGF 290827
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
227 AM CST WED FEB 29 2012

MOC091-290845-
/O.CON.KSGF.TO.W.0021.000000T0000Z-120229T0845Z/
HOWELL MO-
227 AM CST WED FEB 29 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 245 AM CST FOR HOWELL 
COUNTY...

AT 223 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A TORNADO NEAR POMONA...OR 9 MILES SOUTH OF WILLOW
SPRINGS...MOVING EAST AT 65 MPH.

LOCATIONS IMPACTED INCLUDE MOUNTAIN VIEW...PEACE VALLEY...POMONA...
SILOAM SPRINGS AND WHITE CHURCH.

IN ADDITION TO A TORNADO...THIS STORM IS CAPABLE OF PRODUCING LARGE
DAMAGING HAIL UP TO GOLF BALL SIZE...AND 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.

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.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CST WEDNESDAY MORNING
FOR SOUTHERN MISSOURI.

&&

LAT...LON 3682 9210 3683 9208 3684 9209 3691 9205
      3705 9186 3705 9166 3679 9166 3679 9168
      3676 9169 3676 9211
TIME...MOT...LOC 0827Z 262DEG 58KT 3687 9188
HAIL 1.75IN

$$

CRAMER

907 
WWUS53 KSGF 290846
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
246 AM CST WED FEB 29 2012

MOC091-290856-
/O.EXP.KSGF.TO.W.0021.000000T0000Z-120229T0845Z/
HOWELL MO-
246 AM CST WED FEB 29 2012

...THE TORNADO WARNING FOR NORTHERN HOWELL COUNTY HAS EXPIRED...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE TORNADO
THAT PROMPTED THE WARNING IS EXITING THE WARNED AREA...THUS THE
WARNING IS BEING ALLOWED TO EXPIRE.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 500 AM CST WEDNESDAY MORNING
FOR SOUTHERN MISSOURI.

LAT...LON 3682 9210 3683 9208 3684 9209 3691 9205
      3705 9186 3705 9166 3679 9166 3679 9168
      3676 9169 3676 9211
TIME...MOT...LOC 0827Z 262DEG 58KT 3687 9188

$$

CRAMER

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 28, 10:21 PM CST	Severe Thunderstorm Warning	SGF	Barton, Jasper	54 min
Feb 28, 10:48 PM CST	Tornado Warning	SGF	Barton	27 min
Feb 28, 10:59 PM CST	Severe Thunderstorm Warning	SGF	Barton, Cedar, Dade, Jasper, Lawrence, Vernon	31 min
Feb 28, 11:07 PM CST	Tornado Warning	SGF	Barton, Dade	38 min
Feb 28, 11:18 PM CST	Tornado Warning	SGF	Barton, Cedar, Dade, Vernon	27 min
Feb 28, 11:29 PM CST	Tornado Warning	SGF	Dade, Greene, Polk	31 min
Feb 28, 11:33 PM CST	Severe Thunderstorm Warning	SGF	Jasper, Newton	42 min
Feb 28, 11:44 PM CST	Severe Thunderstorm Warning	SGF	Camden, Cedar, Dallas, Hickory, Polk, St. Clair	46 min
Feb 28, 11:54 PM CST	Tornado Warning	SGF	Dallas, Laclede, Polk, Webster	51 min
Feb 28, 11:58 PM CST	Severe Thunderstorm Warning	SGF	McDonald, Newton	32 min
Feb 29, 12:05 AM CST	Severe Thunderstorm Warning	SGF	Lawrence	25 min
Feb 29, 12:19 AM CST	Tornado Warning	SGF	Barry, McDonald	56 min
Feb 29, 12:21 AM CST	Severe Thunderstorm Warning	SGF	Greene	24 min
Feb 29, 12:31 AM CST	Tornado Warning	SGF	Laclede, Phelps, Pulaski	44 min
Feb 29, 12:33 AM CST	Special Weather Statement	SGF	Camden, Maries, Miller	27 min
Feb 29, 12:35 AM CST	Severe Thunderstorm Warning	SGF	Christian, Stone	40 min
Feb 29, 12:43 AM CST	Severe Thunderstorm Warning	SGF	Webster, Wright	47 min
Feb 29, 12:53 AM CST	Severe Thunderstorm Warning	SGF	Laclede, Texas, Wright	67 min
Feb 29, 12:58 AM CST	Tornado Warning	SGF	Stone, Taney	47 min
Feb 29, 1:02 AM CST	Severe Thunderstorm Warning	SGF	Douglas	58 min
Feb 29, 1:06 AM CST	Tornado Warning	SGF	Dent, Phelps	39 min
Feb 29, 1:25 AM CST	Severe Thunderstorm Warning	SGF	Texas, Wright	65 min
Feb 29, 1:33 AM CST	Severe Thunderstorm Warning	SGF	Dent, Shannon, Texas	57 min
Feb 29, 1:36 AM CST	Tornado Warning	SGF	Ozark	54 min
Feb 29, 1:43 AM CST	Severe Thunderstorm Warning	SGF	Dent	32 min
Feb 29, 1:51 AM CST	Tornado Warning	SGF	Douglas	39 min
Feb 29, 2:24 AM CST	Tornado Warning	SGF	Oregon, Shannon	43 min
Feb 29, 2:26 AM CST	Severe Thunderstorm Warning	SGF	Howell, Oregon, Ozark	64 min
Feb 29, 3:21 AM CST	Severe Thunderstorm Warning	SGF	Howell	17 min
Feb 29, 3:51 AM CST	Severe Thunderstorm Warning	SGF	Oregon	28 min
Feb 29, 4:33 AM CST	Red Flag Warning	SGF	Barton, Jasper, Newton, Vernon	13 hr
Feb 29, 3:43 PM CST	Fire Weather Watch	SGF	Barton, Jasper, McDonald, Newton, Vernon	12 hr

Nearby

Tornado Warnings in Missouri, 2012 Every tornado warning in 2012 Tornadoes 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.