Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 285, NWS Springfield, MO

September 7, 2012Texas County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Sep 7, 2012, 5:41 PM CDT for Texas County, Missouri. It was in force for 49 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: Sep 7, 2012, 5:41 PM CDT (22:41 UTC)
Expired: Sep 7, 2012, 6:30 PM CDT
In force: 49 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

County Texas County, MO

The radar

The Springfield radar (KSGF), 139 km from the middle of the area, began a volume at 22:40 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.

What was reported inside it

Time	Report	Where	Remark
Sep 7, 6:09 PM CDT	TSTM WND GST 60	Houston, MO

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 28 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 7, 2:35 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 10.7 hours before the alert went out and 180 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: 1095 J/kg
Mixed-layer CIN: -182 J/kg
Mixed-layer LCL: 1368 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 256 m²/s²
0-3 km storm-relative helicity: 257 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 5.9

Open this sounding in Storm Lab

The text

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

785 
WUUS53 KSGF 072241
SVRSGF
MOC215-072330-
/O.NEW.KSGF.SV.W.0285.120907T2241Z-120907T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
541 PM CDT FRI SEP 7 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  TEXAS COUNTY IN SOUTH CENTRAL MISSOURI...

* UNTIL 630 PM CDT

* AT 535 PM CDT...A LINE OF SEVERE THUNDERSTORMS WAS LOCATED FROM 
EAST OF GROVESPRINGS TO 15 MILES EAST OF HARTVILLE TO 15 MILES EAST 
OF MANSFIELD...AND MOVING EAST AT 45 MPH.

  HAZARD...70 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED.

  IMPACT...TREE BRANCHES UP TO THREE INCHES IN DIAMETER BROKEN.
           POSSIBLE MINOR DAMAGE TO SHINGLE ROOFS AND METAL
           OUTBUILDINGS.

* LOCATIONS IMPACTED INCLUDE...
  ARROLL...BENDAVIS...BUCYRUS...CABOOL...CLEAR SPRINGS...ELK CREEK...
  EUNICE...HARTSHORN...HAZELTON...HOUSTON...HUGGINS...LICKING...PINE
  CREST...PLATO...PRESCOTT...RAYMONDVILLE...ROBY...SIMMONS...SOLO...
  SUCCESS...SUMMERSVILLE AND YUKON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

INTENSE SQUALL LINES CAN SOMETIMES PRODUCE BRIEF TORNADOES AND
WIDESPREAD SIGNIFICANT WIND DAMAGE. ALTHOUGH NOT IMMEDIATELY
LIKELY...IT IS BEST TO MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
OF A BUILDING. THIS STORM MAY CAUSE SERIOUS INJURY AND SIGNIFICANT
PROPERTY DAMAGE.

&&

LAT...LON 3705 9166 3705 9167 3706 9225 3760 9225
      3761 9202 3760 9178 3743 9176 3742 9165
      3725 9164
TIME...MOT...LOC 2240Z 285DEG 40KT 3756 9242 3729 9228
          3703 9253

HAIL...<.75IN
WIND...70 MPH

$$

RUNNELS

1 follow-up statement

685 
WWUS53 KSGF 072330
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
630 PM CDT FRI SEP 7 2012

MOC215-072340-
/O.EXP.KSGF.SV.W.0285.000000T0000Z-120907T2330Z/
TEXAS MO-
630 PM CDT FRI SEP 7 2012

...THE SEVERE THUNDERSTORM WARNING FOR TEXAS COUNTY HAS EXPIRED...

THE LINE OF STORMS WHICH PROMPTED THE WARNING HAS WEAKENED AND MOVED 
EASTWARD INTO DENT COUNTY. 

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT
FRIDAY EVENING FOR SOUTHERN MISSOURI.

LAT...LON 3705 9166 3705 9167 3706 9225 3760 9225
      3761 9202 3760 9178 3743 9176 3742 9165
      3725 9164
TIME...MOT...LOC 2330Z 285DEG 40KT 3741 9174 3714 9161
          3689 9186

$$
RUNNELS

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Springfield, MO wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 7, 3:44 PM CDT, 1 hour 57 minutes earlier.

Area forecast discussion, Sep 7, 3:44 PM CDT, 1 hour 57 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
344 PM CDT FRI SEP 7 2012

...MESO-SCALE FORECAST DISCUSSION...

.UPDATE...
/ISSUED 330 PM CDT FRI SEP 7 2012/

A COMPLEX FORECAST SCENARIO CONTINUED TO TAKE SHAPE THIS AFTERNOON AHEAD
OF A POSITIVE TILT UPPER TROUGH DROPPING SOUTH INTO THE CENTRAL
U.S. AND ASSOCIATED COLD FRONT THAT STRETCHED FROM NORTHEASTERN
MISSOURI TO SOUTHEASTERN KANSAS. THIS FRONT WILL PUSH STEADILY
SOUTHEAST AND REACH THE INTERSTATE 44 CORRIDOR BY LATE AFTERNOON.
ALSO MONITORING A MINOR SHORTWAVE TRACKING ACROSS SOUTHERN
MISSOURI AHEAD OF THE FRONT.

THUNDERSTORMS HAD RAPIDLY DEVELOPED AND INTENSIFIED ALONG THE APPROACHING
COLD FRONT FROM WEST CENTRAL MISSOURI INTO SOUTHEASTERN KANSAS.
THESE STORMS WILL CONTINUE TO CONGEAL AND MOVE FAIRLY RAPIDLY TO
THE EAST. THESE STORMS WILL BECOME INCREASINGLY SURFACE BASED AND
TAP INTO MODERATE INSTABILITY OF NEAR 2500 J/KG OF CAPE. NEARLY
UNIDIRECTIONAL DEEP LAYER WIND FIELD AND INCREASING DEEP LAYER
SHEAR WILL SUPPORT THE POTENTIAL OF DAMAGING WINDS. REPORTS FROM
SOUTHEASTERN KANSAS INDICATE GUSTS UP TO 68 KTS AT COFFEYVILLE. IN
ADDITION HEIGHT FALLS AND STEEPENING LAPSE RATES WILL SUPPORT THE
POTENTIAL OF LARGE HAIL. HAIL UP TO THE SIZE OF TENNIS BALLS HAVE
BEEN REPORTED IN SOUTHEASTERN KANSAS.

ADDITIONAL SCATTERED THUNDERSTORMS WILL CONTINUE TO DEVELOP ACROSS
SOUTH CENTRAL MISSOURI AHEAD OF A MINOR SHORTWAVE.

RAIN AND LIGHTNING WILL PERSIST INTO THE EVENING HOURS BEHIND THE
LEADING LINE OF STORMS.

THOSE WITH OUTDOOR ACTIVITIES PLANNED THIS AFTERNOON AND EVENING
SHOULD CLOSELY MONITOR THE WEATHER.

FOSTER

&&

.DISCUSSION...

MUCH COOLER AND DRIER WEATHER WILL ARRIVE BEHIND THE FRONT LATER
TONIGHT AND INTO THE WEEKEND. NORTH WINDS WILL BE GUSTY BEHIND THE
FRONT THIS EVENING INTO SATURDAY. HIGHS SATURDAY WILL REMAIN IN
THE 70S WITH LOWS THE NEXT FEW NIGHTS IN THE LOWER TO MIDDLE 50S.

WARMING TEMPERATURES WILL RETURN NEXT WITH DRY WEATHER CONTINUING
THROUGH MID WEEK.

FOSTER

&&

.AVIATION...

FOR THE 18Z TAFS...CONDITIONS THIS AFTERNOON SHOULD BE VFR IN
ADVANCE OF AN APPROACHING COLD FRONT. CURRENT INDICATIONS ARE THAT
THE FRONT WILL BEGIN TO PUSH THROUGH THE REGION AFTER 20-21Z AND
IMPACT AREA TERMINALS THROUGH 02-03Z. DURING THIS PERIOD...MVFR TO
OCCASIONAL IFR CEILINGS AND VISIBILITIES WILL BE POSSIBLE IF
STORMS MOVE OVER THE AERODROMES. OTHERWISE...EXPECT MVFR
CONDITIONS. LOW LEVEL WIND SHEAR WILL ALSO BE A CONCERN FROM
06-07Z THROUGH SUNRISE IN THE WAKE OF THE COLD FRONT AS COOLER AIR
FILTERS INTO THE AREA. GENERALLY VFR CONDITIONS ARE THEN EXPECTED
AFTER SUNRISE SATURDAY.

HATCH

&&

.SGF WATCHES/WARNINGS/ADVISORIES...
MO...NONE.
KS...NONE.
&&

Hazardous weather outlook, Sep 7, 4:19 PM CDT, 1 hour 22 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
419 PM CDT FRI SEP 7 2012

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-082130-
BOURBON-CRAWFORD-CHEROKEE-BENTON-MORGAN-MILLER-MARIES-VERNON-
ST. CLAIR-HICKORY-CAMDEN-PULASKI-PHELPS-BARTON-CEDAR-POLK-DALLAS-
LACLEDE-TEXAS-DENT-JASPER-DADE-GREENE-WEBSTER-WRIGHT-NEWTON-
LAWRENCE-CHRISTIAN-DOUGLAS-HOWELL-SHANNON-MCDONALD-BARRY-STONE-
TANEY-OZARK-OREGON-
419 PM CDT FRI SEP 7 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE MISSOURI
OZARKS AND EXTREME SOUTHEAST KANSAS.

.DAY ONE...TONIGHT.

WEATHER HAZARDS EXPECTED...

  ELEVATED HAIL RISK.
  ELEVATED THUNDERSTORM WIND DAMAGE RISK.
  SIGNIFICANT LIGHTNING RISK.
  LIMITED NON THUNDERSTORM WIND RISK.

DISCUSSION...

  STRONG TO SEVERE THUNDERSTORMS WILL CONTINUE TO DEVELOP AND
  PUSH EAST ACROSS THE OUTLOOK AREA THIS AFTERNOON THROUGH EARLY
  EVENING. THERE IS AN ELEVATED RISK FOR SEVERE STORMS CAPABLE OF
  PRODUCING DAMAGING WINDS TO 80 MPH...LARGE HAIL UP TO THE SIZE
  OF HALF DOLLARS...VERY HEAVY RAINFALL...AND FREQUENT CLOUD TO
  GROUND LIGHTNING.

  THE PRIMARY LINE OF STORMS WILL EXTEND FROM THE LAKE OF THE
  OZARKS TO SPRINGFIELD AND CASSVILLE BY 5 PM...AND FROM NEAR
  VIENNA TO FORT LEONARD WOOD AND GAINESVILLE BY 7 PM.

  THE ELEVATED RISK FOR SEVERE WEATHER WILL PERSIST THROUGH 9 PM
  AS THE STORMS PROGRESS EAST ACROSS THE REMAINDER OF THE
  MISSOURI OZARKS.

  GENERAL SHOWERS AND THUNDERSTORMS WILL CONTINUE BEHIND THE COLD
  FRONT WITH THE RISK OF FREQUENT CLOUD TO GROUND LIGHTNING
  CONTINUING THROUGH MIDNIGHT.

  HEAT INDEX VALUES WILL APPROACH 100 DEGREES ACROSS FAR SOUTH
  CENTRAL MISSOURI AHEAD OF THE STORMS.

  GUSTY NORTH WINDS UP TO 30 MPH WILL FOLLOW THE FRONTAL PASSAGE
  LATER THIS AFTERNOON AND EVENING.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

  NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

 SPOTTER ACTIVATION WILL BE LIKELY THROUGH EARLY THIS EVENING.

&&

THIS PRODUCT IS NOW AVAILABLE IN GRAPHICAL FORMAT...ALONG WITH
OTHER WEATHER...HYDROLOGICAL AND CLIMATE INFORMATION...AT
HTTP://WWW.CRH.NOAA.GOV/SGF(ALL LOWERCASE)

FOSTER

In the hours before

Local storm report, Sep 7, 5:21 PM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
521 PM CDT FRI SEP 07 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0408 PM     TSTM WND DMG     SAGINAW                 37.02N 94.47W
09/07/2012                   NEWTON             MO   PUBLIC

            TOP HALF OF EIGHTEEN INCH DIAMETER TREE BROKEN.

&&

JCOLUCCI

Local storm report, Sep 7, 5:22 PM CDT, 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
522 PM CDT FRI SEP 07 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0440 PM     TSTM WND DMG     MORRISVILLE             37.48N 93.43W
09/07/2012                   POLK               MO   CO-OP OBSERVER

            TREES AND POWER LINES REPORTED DOWN IN TOWN. MINOR
            BUILDING DAMAGE.

&&

JCOLUCCI

Local storm report, Sep 7, 5:24 PM CDT, 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
524 PM CDT FRI SEP 07 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0458 PM     TSTM WND GST     WALNUT GROVE            37.41N 93.55W
09/07/2012  E70 MPH          GREENE             MO   EMERGENCY MNGR

            POWER LINES DOWN.

&&

JCOLUCCI

Local storm report, Sep 7, 5:26 PM CDT, 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
526 PM CDT FRI SEP 07 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0514 PM     TSTM WND DMG     MARSHFIELD              37.34N 92.91W
09/07/2012                   WEBSTER            MO   EMERGENCY MNGR

            POWER LINES DOWN. SMALL TREES DAMAGED.

&&

JCOLUCCI

Local storm report, Sep 7, 5:28 PM CDT, 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
528 PM CDT FRI SEP 07 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0519 PM     TSTM WND DMG     PIERCE CITY             36.95N 94.00W
09/07/2012                   LAWRENCE           MO   EMERGENCY MNGR

            THREE INCH LIMBS DOWN IN CITY.

&&

JCOLUCCI

Local storm report, Sep 7, 5:29 PM CDT, 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
529 PM CDT FRI SEP 07 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0422 PM     TSTM WND GST     NEOSHO                  36.87N 94.37W
09/07/2012  E70 MPH          NEWTON             MO   PUBLIC

&&

JCOLUCCI

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 6, 8:21 PM CDT	Special Weather Statement	SGF	Stone	24 min
Sep 6, 8:45 PM CDT	Severe Thunderstorm Warning	SGF	Stone, Taney	27 min
Sep 6, 10:15 PM CDT	Special Weather Statement	SGF	Miller	30 min
Sep 6, 10:19 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Miller	28 min
Sep 7, 2:45 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Ozark	45 min
Sep 7, 2:58 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Vernon	47 min
Sep 7, 3:23 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Cedar, Dade, St. Clair, Vernon	52 min
Sep 7, 3:28 PM CDT	Special Weather Statement	SGF	Howell	32 min
Sep 7, 3:31 PM CDT	Special Weather Statement	SGF	Howell	29 min
Sep 7, 3:36 PM CDT	Severe Thunderstorm Warning	SGF	Oregon	39 min
Sep 7, 3:39 PM CDT	Severe Thunderstorm Warning	SGF	Jasper	66 min
Sep 7, 4:03 PM CDT	Severe Thunderstorm Warning	SGF	McDonald, Newton	57 min
Sep 7, 4:05 PM CDT	Severe Thunderstorm Warning	SGF	Benton, Cedar, Dade, Hickory, Jasper, Lawrence and 2 more	55 min
Sep 7, 4:19 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Oregon, Shannon, Texas	41 min
Sep 7, 4:20 PM CDT	Severe Thunderstorm Warning	SGF	Cedar, Christian, Dade, Greene, Hickory, Jasper and 3 more	55 min
Sep 7, 4:25 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Dallas, Laclede, Webster, Wright	50 min
Sep 7, 4:37 PM CDT	Severe Thunderstorm Warning	SGF	Oregon, Shannon	18 min
Sep 7, 4:41 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Christian, Lawrence, Stone	49 min
Sep 7, 4:50 PM CDT	Severe Thunderstorm Warning	SGF	Webster	44 min
Sep 7, 4:58 PM CDT	Severe Thunderstorm Warning	SGF	Lawrence	16 min
Sep 7, 5:00 PM CDT	Tornado Warning	SGF	Dallas, Laclede	18 min
Sep 7, 5:10 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Laclede, Webster, Wright	50 min
Sep 7, 5:23 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas, Ozark, Stone, Taney	52 min
Sep 7, 5:52 PM CDT	Tornado Warning	SGF	Texas	22 min
Sep 7, 6:03 PM CDT	Severe Thunderstorm Warning	SGF	Phelps, Pulaski	30 min
Sep 7, 6:29 PM CDT	Special Weather Statement	SGF	Dent	31 min
Sep 7, 6:46 PM CDT	Special Weather Statement	SGF	Oregon	29 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.