Alert archive / Missouri / Tornado Warnings in 2009

Tornado Warning 61, NWS Springfield, MO

May 14, 2009Oregon County, Shannon County, Missouri

NWS Springfield, MO issued this tornado warning at May 14, 2009, 12:20 AM CDT for Oregon County, Shannon County, Missouri. It was in force for 70 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: May 14, 2009, 12:20 AM CDT (05:20 UTC)
Expired: May 14, 2009, 1:30 AM CDT
In force: 70 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon

Counties Oregon County, MO, Shannon County, MO

The radar

The St Louis radar (KLSX), 190 km from the middle of the area, began a volume at 05:20 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
May 14, 12:20 AM CDT	TSTM WND DMG	4 Nw Akers, MO	5 TREES 12 INCHES IN DIAMETER UPROOTED NEAR K HIGHWAY

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

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

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
May 13, 9:56 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 5.3 hours before the alert went out and 231 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: 1647 J/kg
Mixed-layer CIN: -77 J/kg
Mixed-layer LCL: 1622 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 142 m²/s²
0-3 km storm-relative helicity: 289 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 16.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KSGF 140520
TORSGF
MOC149-203-140630-
/O.NEW.KSGF.TO.W.0061.090514T0520Z-090514T0630Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1220 AM CDT THU MAY 14 2009

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

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

* UNTIL 130 AM CDT.

* AT 1217 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  A LINE OF THUNDERSTORMS THAT HAVE SEVERAL POTENTIAL TORNADOES EMBEDDED
  WITHIN THE LINE.  THIS LINE OF STORMS WAS MOVING SOUTHEAST AT AROUND
  35 MPH.  THESE STORMS WILL SHIFT THROUGH SHANNON AND OREGON COUNTIES
  OVER THE NEXT HOUR AND A HALF.

* THE STORMS WILL BE NEAR...
  9 MILES SOUTH OF SUMMERSVILLE BY 1235 AM CDT.
  BIRCH TREE BY 1250 AM CDT.
  WINONA BY 100 AM CDT.

THE TOWNS OF PINE CREST...TERESITA AND MONTIER ARE ALSO IN THE PATH 
OF THIS TORNADIC STORM.

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 3709 9103 3708 9122 3683 9122 3682 9111
      3649 9114 3649 9169 3742 9165 3742 9118
      3726 9116 3725 9112 3721 9113 3714 9102
TIME...MOT...LOC 0518Z 280DEG 37KT 3708 9189

$$

CRAMER

5 follow-up statements

000 
WWUS53 KSGF 140521
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1221 AM CDT THU MAY 14 2009

MOC149-203-140630-
/O.CON.KSGF.TO.W.0061.000000T0000Z-090514T0630Z/
SHANNON MO-OREGON MO-
1221 AM CDT THU MAY 14 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 AM CDT FOR OREGON
AND SHANNON COUNTIES...

AT 1221 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE TORNADIC STORMS ALONG A LINE EXTENDING FROM AKERS TO 6 MILES
WEST OF PINE CREST TO 27 MILES WEST OF TERESITA...MOVING EAST AT 40
MPH.

THESE TORNADIC STORMS WILL BE NEAR...
  EMINENCE AND BIRCH TREE BY 1250 AM CDT.
  WINONA BY 1255 AM CDT.
  THAYER BY 110 AM CDT.
  ALTON BY 120 AM CDT.

THE TOWNS OF PINE CREST...TERESITA...ROUND SPRING...MONTIER...ALLEY
SPRING...WEST EMINENCE...MIDRIDGE...ROVER...KOSHKONONG AND
THOMASVILLE ARE IN THE PATH OF THESE TORNADIC STORMS.

IN ADDITION TO A TORNADO...THESE STORMS ARE 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT
THURSDAY MORNING FOR SOUTHERN MISSOURI.

&&

LAT...LON 3709 9103 3708 9122 3683 9122 3682 9111
      3649 9114 3649 9169 3742 9165 3742 9118
      3726 9116 3725 9112 3721 9113 3714 9102
TIME...MOT...LOC 0522Z 280DEG 37KT 3741 9160 3707 9176
          3694 9211

$$

CRAMER

000 
WWUS53 KSGF 140543
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1243 AM CDT THU MAY 14 2009

MOC149-203-140630-
/O.CON.KSGF.TO.W.0061.000000T0000Z-090514T0630Z/
SHANNON MO-OREGON MO-
1243 AM CDT THU MAY 14 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 AM CDT FOR OREGON
AND SHANNON COUNTIES...

AT 1242 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE TORNADIC STORMS ALONG A LINE EXTENDING FROM MIDRIDGE TO
BIRCH TREE TO 9 MILES SOUTH OF TERESITA...MOVING SOUTHEAST AT 40 MPH.

THESE TORNADIC STORMS WILL BE NEAR...
  WINONA BY 1255 AM CDT.
  THAYER BY 105 AM CDT.
  ALTON BY 110 AM CDT.

THE TOWNS OF ROVER...THOMASVILLE...KOSHKONONG...GREER...COUCH...
WILDERNESS AND MYRTLE ARE IN THE PATH OF THESE TORNADIC STORMS.

IN ADDITION TO A TORNADO...THESE STORMS ARE 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT
THURSDAY MORNING FOR SOUTHERN MISSOURI.

&&

LAT...LON 3709 9103 3708 9122 3683 9122 3682 9111
      3649 9114 3649 9169 3742 9165 3742 9118
      3726 9116 3725 9112 3721 9113 3714 9102
TIME...MOT...LOC 0544Z 299DEG 34KT 3738 9123 3704 9146
          3685 9166

$$

CRAMER

000 
WWUS53 KSGF 140604
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
104 AM CDT THU MAY 14 2009

MOC149-203-140630-
/O.CON.KSGF.TO.W.0061.000000T0000Z-090514T0630Z/
SHANNON MO-OREGON MO-
104 AM CDT THU MAY 14 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 AM CDT FOR OREGON
AND SOUTHERN SHANNON COUNTIES...

AT 104 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE TORNADIC STORMS ALONG A LINE EXTENDING FROM 13 MILES
NORTHEAST OF EMINENCE TO BIRCH TREE TO 6 MILES NORTH OF ROVER...
MOVING SOUTHEAST AT 40 MPH.

THESE TORNADIC STORMS WILL BE NEAR...
  WINONA BY 110 AM CDT.
  THAYER BY 125 AM CDT.
  ALTON BY 130 AM CDT.

THE TOWNS OF ROVER...THOMASVILLE...KOSHKONONG...GREER AND COUCH ARE
IN THE PATH OF THESE TORNADIC STORMS.

IN ADDITION TO A TORNADO...THESE STORMS ARE 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT
THURSDAY MORNING FOR SOUTHERN MISSOURI.

&&

LAT...LON 3709 9103 3709 9105 3708 9122 3683 9122
      3682 9111 3649 9114 3649 9169 3702 9167
      3726 9116 3725 9112 3721 9113 3714 9102
TIME...MOT...LOC 0604Z 299DEG 34KT 3723 9115 3699 9145
          3680 9165

$$

CRAMER

000 
WWUS53 KSGF 140617
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
117 AM CDT THU MAY 14 2009

MOC203-140627-
/O.CAN.KSGF.TO.W.0061.000000T0000Z-090514T0630Z/
SHANNON MO-
117 AM CDT THU MAY 14 2009

...THE TORNADO WARNING FOR SHANNON COUNTY IS CANCELLED...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT
THURSDAY MORNING FOR SOUTHWESTERN MISSOURI.

&&

LAT...LON 3649 9169 3679 9168 3679 9167 3689 9167
      3688 9123 3683 9122 3682 9111 3649 9114
TIME...MOT...LOC 0617Z 314DEG 29KT 3687 9121 3678 9164

$$

MOC149-140630-
/O.CON.KSGF.TO.W.0061.000000T0000Z-090514T0630Z/
OREGON MO-
117 AM CDT THU MAY 14 2009

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 AM CDT FOR OREGON
COUNTY...

AT 115 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE TORNADIC STORMS ALONG A LINE EXTENDING FROM 10 MILES
NORTHEAST OF GREER TO ROVER...MOVING SOUTHEAST AT 35 MPH.

THESE TORNADIC STORMS WILL BE NEAR...
  ALTON BY 130 AM CDT.

THE TOWNS OF ROVER...GREER AND WILDERNESS ARE IN THE PATH OF THESE
TORNADIC STORMS.

IN ADDITION TO A TORNADO...THESE STORMS ARE 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.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT
THURSDAY MORNING FOR SOUTHWESTERN MISSOURI.

&&

LAT...LON 3649 9169 3679 9168 3679 9167 3689 9167
      3688 9123 3683 9122 3682 9111 3649 9114
TIME...MOT...LOC 0617Z 314DEG 29KT 3687 9121 3678 9164

$$

CRAMER

000 
WWUS53 KSGF 140633
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
133 AM CDT THU MAY 14 2009

MOC149-140642-
/O.EXP.KSGF.TO.W.0061.000000T0000Z-090514T0630Z/
OREGON MO-
133 AM CDT THU MAY 14 2009

...THE TORNADO WARNING FOR OREGON COUNTY EXPIRES AT 130 AM CDT...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE STORMS THAT
PROMPTED THE WARNING HAD WEAKENED...THUS THE WARNING HAS BEEN ALLOWED
TO EXPIRE.

HOWEVER...THUNDERSTORMS CONTINUE TO IMPACT OREGON COUNTY.  HEAVY 
RAIN AND CLOUD TO GROUND LIGHTNING WILL CONTINUE OVER THE NEXT 30 
MINUTES.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT
THURSDAY MORNING FOR SOUTHWESTERN MISSOURI.

LAT...LON 3649 9169 3679 9168 3679 9167 3689 9167
      3688 9123 3683 9122 3682 9111 3649 9114
TIME...MOT...LOC 0617Z 314DEG 29KT 3687 9121 3678 9164

$$

CRAMER

What forecasters said that day

The local office's own words before this tornado 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 tornado warning went out at May 13, 8:26 PM CDT, 3 hours 54 minutes earlier.

Area forecast discussion, May 13, 8:26 PM CDT, 3 hours 54 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
826 PM CDT WED MAY 13 2009

...MESOSCALE CONVECTIVE DISCUSSION...

.UPDATE...

POTENTIALLY TORNADIC STORM WAS TRACKING EAST SOUTHEAST INTO
SOUTHERN VERNON COUNTY TOWARD NORTHERN BARTON COUNTY AT 0120Z. THIS
STORM WAS PART OF AN INTENSE BAND OF STORMS SPREADING SOUTHEAST
FROM EXTREME SOUTHEAST KANSAS. OTHER STRONG TO SEVERE STORMS
EXTENDED ALONG A COLD FRONT FROM NORTH CENTRAL OKLAHOMA TO
NORTHEAST MISSOURI. LOWER ATMOSPHERE REMAINS VERY UNSTABLE WITH
MIXED LAYER CAPE NEAR 3000 J/KG. WIND SHEAR PARAMETERS WERE NOT
EXCESSIVE BUT AMPLE FOR TORNADIC DEVELOPMENT WITH 0-1KM AND 0-3KM
HELCITIES NEAR 200 M2/S2. DEEP LAYERED SHEAR WAS ON THE ORDER OF
30 KTS.

ISOLATED TORNADO THREAT WILL CONTINUE THROUGH 04Z GIVEN THE LOW
LEVEL SHEAR. HOWEVER DAMAGING WINDS AND LARGE HAIL WILL REMAIN
THE PRIMARY HAZARD. IN FACT THE RISK OF DAMAGING WINDS WILL LIKELY
INCREASE AS THE EVENING PROGRESSES AND STORMS LIKELY FORM INTO A
SQUALL LINE. THESE STORMS WILL IMPACT AREAS FROM SOUTHEAST KANSAS
INTO CENTRAL MISSOURI THROUGH 11 PM. THESE STORMS WILL APPROACH
THE INTERSTATE 44 CORRIDOR BY 11 PM.

THE LINE OF STORMS MAY BECOME MORE WEST TO EAST ORIENTED LATER
TONIGHT WHICH WOULD RESULT IN TRAINING CELLS AND AN ENHANCE FLASH
FLOOD RISK.

FOSTER

&&

.DISCUSSION...

MAIN FOCUS WILL BE WITH SEVERE WEATHER/FLASH FLOODING CHANCES IN
THE FIRST PERIOD.

CURRENTLY...MESOSCALE VORT CONTINUES TO SHIFT NORTHEAST OVER SOUTH
CENTRAL MISSOURI...BUT HEADING INTO A LESS CAPPED REGION OVER
EASTERN MISSOURI/SOUTHERN ILLINOIS. HAD SOME LARGE HAIL WITH THESE
STORMS AND COULD SEE MORE SURFACE BASED STORMS AS IT HEADS OUT OF
THE CWA.

FURTHER WEST...FRONT STILL WELL OUT TO THE WEST PUSHING INTO
NORTHWEST MISSOURI INTO SOUTH CENTRAL KANSAS. TEMPERATURES HAVE
RISEN INTO THE MID 80S WITH DEWPOINTS IN THE MID 60S OVER
SOUTHEAST KANSAS AND WESTERN MISSOURI AHEAD OF THE FRONT LEADING
TO CAPES OF 2500 TO 3000 J/KG SO FAR THIS AFTERNOON. 18Z SOUNDING
AT SGF STILL SHOWS A DECENT THERMAL CAP BETWEEN 875 AND 780 MB.
WILL LIKELY SEE DEVELOPMENT ALONG THE FRONT WITHIN THE NEXT COUPLE
OF HOURS BUT WILL STILL BE SEVERAL HOURS AWAY FROM REACHING THE
NORTHWESTERN PART OF THE CWA.

ALL MODES OF SEVERE WEATHER WILL STILL BE POSSIBLE WITH THE STORMS
THAT OCCUR TONIGHT...MOST LIKELY BEGINNING AS SUPERCELLS AND
GRADUALLY FORMING INTO A SQUALL LINE AS IT PUSHES SOUTHEAST INTO
THE CWA. HIGH INSTABILITY WITH DECENT SHEAR WILL LIKELY LEAD TO
VERY LARGE HAIL UP TO BASEBALL SIZE AND DAMAGING STRAIGHT LINE
WINDS IN EXCESS OF 70 MPH. ISOLATED TORNADOES CANT BE RULED
OUT...ESPECIALLY EARLY ON BUT ALSO WITHIN THE SQUALL LINE.

TORRENTIAL RAINFALL WILL ALSO BE POSSIBLE WITH THIS AREA OF STORMS
TONIGHT AND COULD LEAD TO SOME FLASH FLOODING...ESPECIALLY OVER
THE SOUTHWESTERN 2/3 OF THE CWA WHERE THE FRONT WILL BE SLOWER TO
MOVE SOUTHEAST AND WHERE THE GROUND HAS BEEN MOST SATURATED FROM
PREVIOUS HEAVY RAINS. A FLASH FLOOD WATCH REMAINS IN EFFECT
THROUGH TONIGHT.

GUSTY SURFACE WINDS IN ADVANCE OF THE FRONT DEVELOPED EARLIER THIS
MORNING AND WILL CONTINUE THROUGH THE AFTERNOON SO WILL KEEP WIND
ADVISORY GOING THROUGH 7 PM.

THE SURFACE FRONT WILL LIKELY STALL OUT OVER ARKANSAS AS THE FRONT
BECOMES MORE PARALLEL WITH THE UPPER LEVEL FLOW ON THURSDAY. FRONT
WILL THEN BEGIN TO LIFT BACK NORTH AS A WARM FRONT AND WITH LOW
LEVEL JET RE-ESTABLISHING OVER OKLAHOMA/WESTERN MO/EASTERN
KS...WILL LIKELY SEE REDEVELOPING STORMS ALONG AND NORTH OF THE
ADVANCING FRONT THURSDAY NIGHT INTO FRIDAY.

ANOTHER COLD FRONT WILL BEGIN TO MOVE BACK THROUGH THE AREA FRIDAY
NIGHT INTO SATURDAY BRINGING YET ANOTHER CHANCE OF THUNDERSTORMS
AND HEAVY RAIN TO THE AREA.

LINDENBERG

FOR THE EXTENDED PERIOD (SAT THROUGH WED)...

AT THE ONSET OF THE EXTENDED PERIOD...UPPER LEVEL WAVE WILL BE
PUSHING EAST ACROSS THE UPPER MISSISSIPPI VALLEY AND INTO THE GREAT
LAKES REGION.  THIS WILL HELP DRIVE A COLD FRONT THROUGH THE
MISSOURI OZARKS AND SOUTHEAST KANSAS DURING THE DAY SATURDAY.  LOOKS
LIKE A GOOD CHANCE OF THUNDERSTORMS WITH THE FRONTAL PASSAGE.  BOTH
GFS/ECMWF TAKE THE FRONT WELL SOUTH OF THE AREA AND INTO THE GULF BY
12Z SUN TAKING THE PRECIPITATION CHANCES WITH IT.

MODELS ARE IN AGREEMENT ON BUILDING UPPER RIDGE INTO THE AREA BY THE
MIDDLE OF NEXT WEEK...KEEPING MAIN STORM TRACK WELL TO THE NORTH OF
THE FORECAST AREA.  DRY CONDITIONS ARE EXPECTED THROUGH THE AREA
FROM SUNDAY THROUGH WEDNESDAY WITH TEMPERATURES WARMING BACK INTO
THE UPPER 70S TO LOW 80S BY LATE IN THE PERIOD.

BY WEDNESDAY...SOME MODEL DIFFERENCES START TO APPEAR AS GFS WANTS
TO SHIFT THE UPPER RIDGE TO THE EAST OF THE AREA QUICKER THAN THE
ECMWF.  WILL GO WITH THE SLOWER ECMWF FOR NOW AND KEEP THINGS DRY
FOR NEW DAY 7.

LINDENBERG

&&

.AVIATION...

FOR THE 0000Z KSGF/KJLN TAFS...GUSTY SOUTH WINDS WILL OCCUR AHEAD OF
A COLD FRONT OVER THE CENTRAL PLAINS. STORMS ARE ORGANIZING ALONG
THE FRONT AND IT WILL PUSH THROUGH THE TAF SITES THIS EVENING.
SEVERE STORMS ARE EXPECTED IN THE REGION. COULD SEE IFR VISIBILITY
AND/OR CEILINGS AT TIMES WITH HEAVY RAINFALL ALONG WITH AREAS OF
VERY STRONG THUNDERSTORM WINDS. BEHIND THE FRONT THERE MAU BE A
PERIOD OF LOWER CEILINGS WITH SHOWERS WITH GRADUAL IMPROVEMENT
EXPECTED LATE TONIGHT AND THU MORNING. DSA

&&

.SGF WATCHES/WARNINGS/ADVISORIES...
MO...FLASH FLOOD WATCH UNTIL 7 AM CDT THURSDAY FOR MOZ055>058-066>071-
     077>083-088>098-101>106.

KS...FLASH FLOOD WATCH UNTIL 7 AM CDT THURSDAY FOR KSZ073-097-101.

&&

Hazardous weather outlook, May 14, 12:12 AM CDT, 8 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1212 AM CDT THU MAY 14 2009

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-150515-
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-
1212 AM CDT THU MAY 14 2009

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

.DAY ONE...TONIGHT.

  WEATHER HAZARDS EXPECTED:

  A LINE OF SEVERE THUNDERSTORMS CAPABLE OF PRODUCING HAIL TO THE
  SIZE OF QUARTERS...WIND GUSTS OF OVER 70 MPH...ISOLATED
  TORNADOES...AND FLASH FLOODING.

  AREAS AFFECTED AND TIMING:

  STORMS WILL AFFECT AREAS ALONG AND SOUTHWEST OF A ROLLA TO CRANE
  MISSOURI LINE THROUGH EARLY THURSDAY MORNING.

  DISCUSSION:

  A LINE OF STORMS WILL CONTINUE TO PUSH TO THE SOUTH AND EAST
  ALONG A COLD FRONT THAT WILL PUSH THROUGH THE MISSOURI OZARKS
  TONIGHT. WIND SHEAR PARAMETERS WILL SUPPORT DAMAGING WINDS AND
  THE POTENTIAL OF ISOLATED TORNADOES AS THE STORMS PUSH THROUGH
  THE AREA.

  IN ADDITION...TORRENTIAL RAINFALL WILL OCCUR WITH THESE STORMS
  WITH RAINFALL RATES NEAR TWO INCHES PER HOUR POSSIBLE. THIS
  COULD LEAD TO WATER PONDING ON ROADWAYS AND FLASH FLOODING GIVEN
  THE NEAR SATURATED GROUND.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

 ANOTHER COLD FRONT WILL BRING ANOTHER CHANCE OF STRONG TO SEVERE
 STORMS LATE FRIDAY NIGHT AND EARLY SATURDAY.

.SPOTTER INFORMATION STATEMENT...

 SPOTTER ACTIVATION WILL LIKELY BE NEEDED ACROSS SOUTH CENTRAL MISSOURI
 THROUGH EARLY THURSDAY MORNING.

&&

THIS PRODUCT IS NOW AVAILABLE IN GRAPHICAL FORMAT...ALONG WITH
OTHER WEATHER...HYDROLOGICAL AND CLIMATE INFORMATION...AT
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WISE

In the hours before

Local storm report, May 13, 11:34 PM CDT, 46 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1134 PM CDT WED MAY 13 2009

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

1104 PM     TSTM WND DMG     5 E PINEVILLE           36.59N  94.29W
05/13/2009                   MCDONALD           MO   LAW ENFORCEMENT

            TREES DOWN

&&

HATCH

Local storm report, May 13, 11:35 PM CDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1135 PM CDT WED MAY 13 2009

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

1130 PM     TSTM WND DMG     PINEVILLE               36.59N  94.38W
05/13/2009                   MCDONALD           MO   EMERGENCY MNGR

            HIGHWAY K EAST OF PINEVILLE CLOSED DUE TO FALLEN TREES

&&

KARDELL

Local storm report, May 13, 11:45 PM CDT, 35 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1145 PM CDT WED MAY 13 2009

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

1125 PM     TSTM WND DMG     5 E PINEVILLE           36.59N  94.29W
05/13/2009                   MCDONALD           MO   LAW ENFORCEMENT

            HOUSE DESTROYED BY FALLEN TREE

&&

KARDELL

Local storm report, May 13, 11:49 PM CDT, 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1149 PM CDT WED MAY 13 2009

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

1122 PM     HAIL             CRANE                   36.91N  93.57W
05/13/2009  E0.50 INCH       STONE              MO   LAW ENFORCEMENT

&&

KARDELL

Local storm report, May 13, 11:59 PM CDT, 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1159 PM CDT WED MAY 13 2009

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

1120 PM     TSTM WND DMG     5 E ANDERSON            36.65N  94.35W
05/13/2009                   MCDONALD           MO   LAW ENFORCEMENT

            TREE FELL ACROSS ROAD CAUSING 1 VEHICLE ACCIDENT

&&

KARDELL

Local storm report, May 14, 12:00 AM CDT, 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1200 AM CDT THU MAY 14 2009

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

1120 PM     TSTM WND DMG     ANDERSON                36.65N  94.44W
05/13/2009                   MCDONALD           MO   LAW ENFORCEMENT

            POWER LINES DOWN

&&

KARDELL

The office that day

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

Issued	Product	Office	Counties	Lasted
May 13, 7:58 PM CDT	Tornado Warning	SGF	Barton, Vernon	62 min
May 13, 8:33 PM CDT	Tornado Warning	SGF	Cedar, Dade	57 min
May 13, 8:37 PM CDT	Flash Flood Warning	SGF	Barton, Vernon	5 hr
May 13, 8:45 PM CDT	Severe Thunderstorm Warning	SGF	Benton, Morgan	90 min
May 13, 9:37 PM CDT	Severe Thunderstorm Warning	SGF	Jasper	64 min
May 13, 9:42 PM CDT	Severe Thunderstorm Warning	SGF	Dade, Polk	49 min
May 13, 9:46 PM CDT	Flash Flood Warning	SGF	Cedar, Dade, Jasper, Polk, St. Clair	4 hr
May 13, 10:07 PM CDT	Severe Thunderstorm Warning	SGF	Newton	73 min
May 13, 10:28 PM CDT	Severe Thunderstorm Warning	SGF	McDonald	77 min
May 13, 10:31 PM CDT	Flash Flood Warning	SGF	Greene, Lawrence, Newton	4 hr
May 13, 10:33 PM CDT	Severe Thunderstorm Warning	SGF	Greene	72 min
May 13, 10:35 PM CDT	Severe Thunderstorm Warning	SGF	Lawrence	55 min
May 13, 10:44 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Christian, Stone, Taney	91 min
May 13, 10:51 PM CDT	Tornado Warning	SGF	Greene	39 min
May 13, 10:58 PM CDT	Severe Thunderstorm Warning	SGF	Webster	77 min
May 13, 11:04 PM CDT	Tornado Warning	SGF	Christian, Greene, Webster	38 min
May 13, 11:16 PM CDT	Severe Thunderstorm Warning	SGF	McDonald	47 min
May 13, 11:21 PM CDT	Flash Flood Warning	SGF	McDonald	4 hr
May 13, 11:22 PM CDT	Tornado Warning	SGF	Douglas	68 min
May 13, 11:31 PM CDT	Tornado Warning	SGF	Christian, Douglas, Taney	59 min
May 13, 11:37 PM CDT	Tornado Warning	SGF	Wright	26 min
May 13, 11:48 PM CDT	Tornado Warning	SGF	Ozark	72 min
May 13, 11:56 PM CDT	Tornado Warning	SGF	Stone, Taney	34 min
May 14, 12:05 AM CDT	Flash Flood Warning	SGF	Barry, Christian, Douglas, Ozark, Stone, Taney and 3 more	6 hr
May 14, 12:06 AM CDT	Tornado Warning	SGF	Taney	41 min
May 14, 12:10 AM CDT	Tornado Warning	SGF	Howell	65 min
May 14, 12:34 AM CDT	Flash Flood Warning	SGF	Dent, Howell, Oregon, Shannon	5 hr
May 14, 1:11 AM CDT	Tornado Warning	SGF	Howell	32 min
May 14, 1:50 AM CDT	Areal Flood Warning	SGF	Barton, Cedar, Dade, Greene, Jasper, Lawrence and 5 more	12 hr
May 14, 4:50 AM CDT	River Flood Warning	SGF	Pulaski	50 hr
May 14, 4:50 AM CDT	River Flood Warning	SGF	Vernon	4 days
May 14, 6:31 AM CDT	River Flood Warning	SGF	Vernon	5 days

Nearby

Tornado Warnings in Missouri, 2009 Every tornado warning in 2009 Tornadoes in 2009

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.