Alert archive / Missouri / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 42, NWS Springfield, MO

April 11, 20114 counties in Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Apr 11, 2011, 1:50 AM CDT for 4 counties in Missouri. It was in force for 33 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: Apr 11, 2011, 1:50 AM CDT (06:50 UTC)
Expired: Apr 11, 2011, 2:23 AM CDT
In force: 33 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Howell County, MO, Oregon County, MO, Shannon County, MO, Texas County, MO

The radar

The St Louis radar (KLSX), 179 km from the middle of the area, began a volume at 06:50 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm 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
Apr 10, 7:28 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 6.8 hours before the alert went out and 228 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: 601 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 1468 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 234 m²/s²
0-3 km storm-relative helicity: 188 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 3.1

Open this sounding in Storm Lab

The text

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

568 
WUUS53 KSGF 110650
SVRSGF
MOC091-149-203-215-110745-
/O.NEW.KSGF.SV.W.0042.110411T0650Z-110411T0745Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
150 AM CDT MON APR 11 2011

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHEASTERN HOWELL COUNTY IN SOUTH CENTRAL MISSOURI...
  NORTHWESTERN OREGON COUNTY IN SOUTH CENTRAL MISSOURI...
  SHANNON COUNTY IN SOUTH CENTRAL MISSOURI...
  SOUTHEASTERN TEXAS COUNTY IN SOUTH CENTRAL MISSOURI...

* UNTIL 245 AM CDT.

* AT 145 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS ALONG A LINE EXTENDING FROM CLEAR SPRINGS TO 4
  MILES SOUTHEAST OF POMONA...MOVING NORTHEAST AT 50 MPH. THESE
  STORMS ARE CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
  WINDS IN EXCESS OF 60 MPH.

* LOCATIONS IMPACTED INCLUDE BIRCH TREE...EMINENCE...MOUNTAIN VIEW...
  SUMMERSVILLE AND WINONA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THESE ARE DANGEROUS STORMS CAPABLE OF PRODUCING LARGE HAIL AND
DAMAGING WINDS...IF YOU ARE IN THEIR PATH SEEK SHELTER INDOORS AND
STAY AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR
SOUTHWESTERN MISSOURI.

&&

LAT...LON 3708 9109 3708 9122 3690 9122 3674 9196
      3718 9193 3742 9121 3742 9118 3726 9116
      3725 9112 3721 9113 3721 9110 3714 9102
      3710 9102
TIME...MOT...LOC 0650Z 245DEG 43KT 3715 9180 3684 9180
WIND...HAIL 60MPH 1.00IN

$$

SCHAUMANN

2 follow-up statements

572 
WWUS53 KSGF 110709
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
209 AM CDT MON APR 11 2011

MOC091-149-215-110719-
/O.CAN.KSGF.SV.W.0042.000000T0000Z-110411T0745Z/
TEXAS MO-HOWELL MO-OREGON MO-
209 AM CDT MON APR 11 2011

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN OREGON...
NORTHEASTERN HOWELL AND SOUTHEASTERN TEXAS COUNTIES IS CANCELLED...

THE SEVERE THUNDERSTORM THAT PROMPTED THE WARNING HAS SHIFTED INTO 
SHANNON COUNTY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR
SOUTHWESTERN MISSOURI.

&&

LAT...LON 3708 9109 3708 9122 3702 9122 3694 9166
      3713 9167 3727 9166 3742 9118 3726 9116
      3725 9112 3721 9113 3721 9110 3714 9102
      3710 9102
TIME...MOT...LOC 0709Z 241DEG 54KT 3716 9149

$$

MOC203-110745-
/O.CON.KSGF.SV.W.0042.000000T0000Z-110411T0745Z/
SHANNON MO-
209 AM CDT MON APR 11 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM CDT
FOR SHANNON COUNTY...

AT 204 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM 5 MILES NORTHEAST OF PINE CREST...OR
12 MILES NORTHEAST OF MOUNTAIN VIEW...MOVING NORTHEAST AT 60 MPH.
THIS STORM IS CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH.

LOCATIONS IMPACTED INCLUDE ALLEY SPRING...BIRCH TREE...EMINENCE...
MIDRIDGE...MONTIER...PINE CREST...ROUND SPRING...SUMMERSVILLE...
TERESITA...WEST EMINENCE AND WINONA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

THIS IS A DANGEROUS STORM CAPABLE OF PRODUCING LARGE HAIL AND
DAMAGING WINDS...IF YOU ARE IN ITS PATH SEEK SHELTER INDOORS AND STAY
AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR
SOUTHWESTERN MISSOURI.

&&

LAT...LON 3708 9109 3708 9122 3702 9122 3694 9166
      3713 9167 3727 9166 3742 9118 3726 9116
      3725 9112 3721 9113 3721 9110 3714 9102
      3710 9102
TIME...MOT...LOC 0709Z 241DEG 54KT 3716 9149
WIND...HAIL 60MPH 1.00IN

$$

SCHAUMANN

567 
WWUS53 KSGF 110723
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
223 AM CDT MON APR 11 2011

MOC203-110733-
/O.CAN.KSGF.SV.W.0042.000000T0000Z-110411T0745Z/
SHANNON MO-
223 AM CDT MON APR 11 2011

...THE SEVERE THUNDERSTORM WARNING FOR SHANNON COUNTY IS CANCELLED...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT THE SEVERE
THUNDERSTORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO LONGER
SEVERE...THUS THE WARNING HAS BEEN CANCELLED.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR
SOUTH CENTRAL MISSOURI.

LAT...LON 3708 9109 3708 9122 3702 9122 3694 9166
      3713 9167 3727 9166 3742 9118 3726 9116
      3725 9112 3721 9113 3721 9110 3714 9102
      3710 9102
TIME...MOT...LOC 0723Z 241DEG 54KT 3726 9126

$$

SCHAUMANN

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 Apr 11, 12:03 AM CDT, 1 hour 47 minutes earlier.

Area forecast discussion, Apr 11, 12:03 AM CDT, 1 hour 47 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1203 AM CDT MON APR 11 2011

...UPDATE TO AVIATION...

.UPDATE...

THE 00Z RAOB HAS BEEN PERFORMED AND ANALYZED UP THROUGH 400MB.

SHALLOW CONVECTION CONTINUES TO STEW ALONG A DRY LINE...WHICH AT
00Z...EXTENDED FROM VERSAILLES DOWN TOWARD NEOSHO MISSOURI.
UPDRAFTS STRUGGLED TO PUNCH THROUGH A MID LEVEL CAP...THAT WAS
MEASURED AT AROUND 650MB.  HOWEVER...MID LEVEL HEIGHT FALLS
ASSOCIATED WITH AN APPROACHING DEEP TROUGH SHOULD CONTINUE TO WORK
ON THIS CAP...HELPING TO FACILITATE DEEP CONVECTION AS WE PROGRESS
THROUGH THE EVENING.

THE ENVIRONMENT AHEAD OF THE DRY LINE...BASED OFF OF THE 00Z
RAOB...WAS BECOMING SLIGHTLY MORE UNSTABLE...BUT STILL CAPPED.  WHEN
LIFTING A MIXED LAYER PARCEL...INHIBITION WAS MEASURED AT 118
J/KG...WHICH LOWERED FROM 223 J/KG MEASURED FROM THE 21Z SOUNDING.
BECAUSE OF THIS MID LEVEL CAP...WARM SECTOR CONVECTION IS BECOMING
LESS LIKELY...AS THE DRY LINE WILL CONTINUE TO BE THE PRIMARY
FOCUS FOR CONVECTION.

WE ALSO FEEL AS THOUGH THE TORNADO RISK DECREASING.  POOR LAPSE
RATES WITHIN THE LOWEST 3 KM WILL BE A MITIGATION FACTOR IN A STORMS
ABILITY TO PRODUCE TORNADOES.  THIS LACK OF LOW LEVEL CAPE IN
CONJUNCTION WITH VEERING SOUTHWEST WINDS AT THE SURFACE...ALSO
DECREASES THE RISK FOR TORNADOES.  HOWEVER...INCREASING NORMALIZED
CAPE WITHIN THE -10 TO -30 LAYER WILL FAVOR A DECENT RISK FOR LARGE
HAIL.  AND FINALLY...THE INVERTED V STRUCTURE FROM THE SURFACE TO
850MB...WILL PROMOTE A RISK FOR THUNDERSTORM WIND GUSTS UP TO 60
MPH.

THROUGH 03Z...AS UPPER MID LEVEL HEIGHT FALLS INCREASE BETWEEN 01
AND 03Z...UPDRAFTS ARE EXPECTED TO PUNCH THROUGH THE MID LEVEL
CAP...AND FORM A LINE OR BROKEN LINE OF CONVECTION ALONG THE DRY
LINE.  0-6 KM SHEAR VECTOR ORIENTATION WITH RESPECT TO THE DRY LINE
SUPPORTS THIS IDEA OF A SQUALL LINE.  MINI-BOWS WITHIN THE LINE ARE A
POSSIBILITY DUE TO THE DOWNBURST POTENTIAL ASSOCIATED WITH THE
INVERTED V STRUCTURE OF THE LOWER TROP.

CRAMER

&&

.DISCUSSION...
/ISSUED 300 PM CDT SUN APR 10 2011/

THUNDERSTORMS WILL SWEEP ACROSS THE AREA TONIGHT AS A COLD FRONT
OVERTAKES THE DRY LINE AND MOVES EAST ACROSS THE REGION. THE UPPER
TROUGH WILL TRANSLATE EASTWARD ACROSS THE CENTRAL U.S. MONDAY
WHILE SURFACE HIGH PRESSURE BUILDS EAST FROM THE PLAINS. TEMPERATURES
WILL BE CONSIDERABLY COOLER WHILE GUSTY NORTHWEST WINDS WILL
PERSIST THROUGH THE DAY.

WINDS WILL SUBSIDE MONDAY NIGHT AS SURFACE PRESSURE SETTLES INTO
THE REGION. LOWS MONDAY NIGHT WILL FALL INTO THE UPPER 30 WITH MID
30S POSSIBLE IN THE COLDER VALLEYS. WHILE WIDESPREAD FROST IS NOT
EXPECTED...BUT PATCHY FROST CANNOT BE RULED OUT.

WARMER TEMPERATURES WILL RETURN TUESDAY INTO WEDNESDAY AS UPPER
LEVEL RIDGING BUILDS INTO THE AREA IN THE WAKE OF THE EXITING
TROUGH. SOUTHERLY WINDS WILL RETURN WEDNESDAY AS THE NEXT SYSTEM
BEGINS TO SHAPE OUT WEST.

WHILE MEDIUM RANGE MODELS DIFFER IN THE DETAILS THEY DO BRING A
POTENT LOOKING SHORTWAVE AND ASSOCIATED FRONT ACROSS THE REGION
LATER THURSDAY. THIS BRING ANOTHER CHANCE OF SHOWERS AND
THUNDERSTORMS AND PERHAPS SOME SEVERE WEATHER.

COOLER WEATHER WILL FOLLOW THE PASSAGE OF THIS SYSTEM FOR FRIDAY
AND SATURDAY.

FOSTER

&&

.AVIATION...

FOR THE 06Z TAFS...ONGOING CONVECTION AFFECTING MAINLY THE KSGF
AND KBBG TERMINALS AT THIS TIME. FINE LINE EVIDENT ROUGHLY FROM
HERMITAGE TO JOPLIN COULD KICK OFF MORE CONVECTION AS IT
PROGRESSES SOUTHWARD. ALSO MONITORING ACTIVITY IN OKLAHOMA. FOR
NOW...BELIEVE KJLN IS DONE WITH CONVECTION.

CONVECTION SHOULD CLEAR KSGF/KBBG AROUND 09/10Z. ONCE FRONT
PASSES...WINDS WILL SHIFT TO NORTHWEST AND WILL BE DEALING WITH
COLD AIR STRATOCUMULUS AND SOME GUSTY WINDS DURING THE DAY ON
MONDAY.

GAEDE

&&

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

Hazardous weather outlook, Apr 11, 12:43 AM CDT, 1 hour 7 minutes before

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1243 AM CDT MON APR 11 2011

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-120545-
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-
1243 AM CDT MON APR 11 2011

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

.DAY ONE...TONIGHT.

 THE HAZARDOUS WEATHER RISK LEVEL IS...SIGNIFICANT.

WEATHER HAZARDS EXPECTED...

  SIGNIFICANT LIGHTNING RISK.
  ELEVATED HAIL AND THUNDERSTORM WIND RISK.
  LIMITED TORNADO RISK.

DISCUSSION...

  STRONG TO SEVERE STORMS WILL REMAIN POSSIBLE ALONG AND SOUTHEAST
  OF A LINE FROM ROLLA TO HARTVILLE TO BRANSON IN MISSOURI FOR THE
  REMAINDER OF THE OVERNIGHT HOURS. STORMS SUNDAY EVENING HAVE HAD
  A HISTORY OF PRODUCING LARGE HAIL AND AREAS OF DAMAGING WIND
  GUSTS. THIS ACTIVITY WILL STEADILY MOVE TO THE EAST THROUGH 4
  AM...WITH THE GREATEST RISK FOR SEVERE WEATHER EXPECTED ACROSS
  SOUTH CENTRAL MISSOURI AND THE EASTERN OZARKS.

  THE PRIMARY SEVERE WEATHER RISKS WITH THIS ACTIVITY WILL BE
  LARGE HAIL TO THE SIZE OF HALF DOLLARS AND DAMAGING WIND GUSTS
  TO 60 MPH. DUE TO STRONG LOW LEVEL WIND SHEAR A TORNADO CANNOT
  BE RULED OUT...HOWEVER THE OVERALL RISK FOR TORNADOES IS
  LIMITED AT THIS TIME.

  A COLD FRONT WILL MOVE INTO THE AREA AS THE OVERNIGHT HOURS
  PROGRESS...THIS FEATURE WILL END THE RISK OF SEVERE WEATHER FROM
  WEST TO EAST.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

  LOW HUMIDITY AND MODERATELY GUSTY WINDS MAY PRODUCE AN ELEVATED
  FIRE DANGER MONDAY IN SOME AREAS.

  ANOTHER STORM SYSTEM WILL AFFECT THE REGION DURING THE MIDDLE
  TO END OF NEXT WEEK AND WILL BRING ADDITIONAL CHANCES FOR
  THUNDERSTORMS TO THE AREA...INCLUDING A LIMITED THREAT FOR
  STRONG TO SEVERE STORMS ON THURSDAY.

.SPOTTER INFORMATION STATEMENT...

  SPOTTER ACTIVATION WILL BE NEEDED ACROSS THE EASTERN OZARKS AND
  SOUTH CENTRAL MISSOURI...MAINLY ALONG AND SOUTHEAST OF A LINE
  FROM ROLLA TO HARTVILLE TO BRANSON.

&&

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)

GAGAN

In the hours before

Local storm report, Apr 10, 11:55 PM CDT, 1 hour 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1155 PM CDT SUN APR 10 2011

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

1059 PM     TSTM WND DMG     4 NNW FORDLAND          37.21N 92.98W
04/10/2011                   WEBSTER            MO   AMATEUR RADIO

            ONE LARGE TREE ACROSS PANTHER CREEK ROAD.

&&

KURTZ

Local storm report, Apr 11, 12:02 AM CDT, 1 hour 48 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1202 AM CDT MON APR 11 2011

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

1059 PM     TSTM WND DMG     4 NW FORDLAND           37.20N 92.98W
04/10/2011                   WEBSTER            MO   AMATEUR RADIO

            REPORT OF TWO TREES ACROSS PANTHER CREEK ROAD 2.25 MILES
            SOUTH OF PLEASANT GROVE ROAD.

&&

KURTZ

Local storm report, Apr 11, 12:27 AM CDT, 1 hour 23 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1227 AM CDT MON APR 11 2011

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

1142 PM     TSTM WND GST     LYNCHBURG               37.49N 92.29W
04/10/2011  E60 MPH          LACLEDE            MO   FIRE DEPT/RESCUE

&&

KURTZ

Local storm report, Apr 11, 12:35 AM CDT, 1 hour 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1235 AM CDT MON APR 11 2011

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

1130 PM     TSTM WND DMG     2 S ROLLA               37.92N 91.77W
04/10/2011                   PHELPS             MO   LAW ENFORCEMENT

            LAW ENFORCEMENT REPORTED 20 TO 25 POWER POLLS DOWN 2
            MILES SOUTH OF ROLLA ALONG MISSOURI HIGHWAY O.

&&

KURTZ

Local storm report, Apr 11, 12:37 AM CDT, 1 hour 13 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1237 AM CDT MON APR 11 2011

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

1130 PM     TSTM WND DMG     1 ENE ROLLA             37.96N 91.75W
04/10/2011                   PHELPS             MO   LAW ENFORCEMENT

            LAW ENFORCEMENT REPORTS ROOF DAMAGE TO AN APARTMENT
            COMPLEX ON THE 1900 BLOCK OF FORUM ROAD IN ROLLA.
            SHINGLES AND DECKING REMOVED.

&&

KURTZ

Special weather statement, Apr 11, 1:34 AM CDT, 16 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
134 AM CDT MON APR 11 2011

MOZ082-097-098-106-110715-
SHANNON MO-TEXAS MO-HOWELL MO-OREGON MO-
134 AM CDT MON APR 11 2011

...SIGNIFICANT WEATHER ALERT FOR HOWELL...NORTHWESTERN OREGON...
SHANNON AND SOUTHEASTERN TEXAS COUNTIES UNTIL 215 AM CDT...

AT 130 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM WILLOW SPRINGS TO 4
MILES NORTH OF CAULFIELD...MOVING NORTHEAST AT 55 MPH. PENNY SIZE
HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THESE STORMS.

LOCATIONS IMPACTED INCLUDE BIRCH TREE...EMINENCE...MOUNTAIN VIEW...
SUMMERSVILLE...WEST PLAINS...WILLOW SPRINGS AND WINONA.

IF YOU ARE IN THE PATH OF THESE STORMS...SEEK SHELTER INDOORS AND
STAY AWAY FROM WINDOWS.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 300 AM CDT MONDAY MORNING FOR
SOUTHERN MISSOURI.

LAT...LON 3706 9210 3742 9125 3680 9126 3658 9212
TIME...MOT...LOC 0635Z 245DEG 46KT 3701 9189 3669 9205

SCHAUMANN

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 8:23 PM CDT	Severe Thunderstorm Warning	SGF	McDonald, Newton	52 min
Apr 10, 8:57 PM CDT	Severe Thunderstorm Warning	SGF	Hickory, Polk	48 min
Apr 10, 9:01 PM CDT	Severe Thunderstorm Warning	SGF	Dade, Jasper, Lawrence	44 min
Apr 10, 9:34 PM CDT	Severe Thunderstorm Warning	SGF	Greene, Polk	32 min
Apr 10, 10:41 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Greene, Webster	39 min
Apr 10, 10:44 PM CDT	Severe Thunderstorm Warning	SGF	Camden, Laclede, Miller, Pulaski	46 min
Apr 10, 10:52 PM CDT	Tornado Warning	SGF	Greene, Webster, Wright	53 min
Apr 10, 11:05 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Maries, Phelps	39 min
Apr 10, 11:11 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Polk	34 min
Apr 10, 11:33 PM CDT	Severe Thunderstorm Warning	SGF	Laclede	12 min
Apr 11, 12:02 AM CDT	Severe Thunderstorm Warning	SGF	Stone, Taney	30 min
Apr 11, 12:49 AM CDT	Severe Thunderstorm Warning	SGF	Douglas, Ozark	41 min
Apr 11, 1:34 AM CDT	Special Weather Statement	SGF	Howell, Shannon	41 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2011 Every severe thunderstorm warning in 2011

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.