Alert archive / Missouri / Special Weather Statements in 2012

Special Weather Statement, NWS Springfield, MO

April 15, 2012Cedar County, Dade County, Missouri

NWS Springfield, MO issued this special weather statement at Apr 15, 2012, 12:52 PM CDT for Cedar County, Dade County, Missouri. It was in force for 38 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 15, 2012, 12:52 PM CDT (17:52 UTC)
Expired
Apr 15, 2012, 1:30 PM CDT
In force
38 min
Issued by
NWS Springfield, MO

Counties Cedar County, MO, Dade County, MO

The radar

The Springfield radar (KSGF), 59 km from the middle of the area, began a volume at 17:55 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.

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 5.9 hours before the alert went out and 79 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 2012-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 31 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 2012-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 319 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
31 J/kg
Mixed-layer CIN
-142 J/kg
Mixed-layer LCL
855 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
319 m²/s²
0-3 km storm-relative helicity
381 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.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Apr 15, 12:41 PM CDT, 11 minutes earlier.

Area forecast discussion, Apr 15, 12:41 PM CDT, 11 minutes before
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Hazardous weather outlook, Apr 15, 9:34 AM CDT, 3 hours 18 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE SPRINGFIELD MO
934 AM CDT SUN APR 15 2012

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-161445-
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-
934 AM CDT SUN APR 15 2012

...SEVERE STORMS POSSIBLE THIS AFTERNOON...

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

.DAY ONE...TODAY AND TONIGHT.

WEATHER HAZARDS EXPECTED...

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

DISCUSSION...

  A BROKEN LINE OF THUNDERSTORMS WILL CONTINUE TO SLOWLY TRACK
  EAST ACROSS THE OUTLOOK AREA INTO EARLY THIS EVENING. THIS
  LINE WILL STRENGTHEN LATE THIS MORNING AND THIS AFTERNOON AS
  IT ENCOUNTERS A MORE UNSTABLE AIRMASS ACROSS THE CENTRAL AND
  EASTERN MISSOURI OZARKS. A FEW SUPERCELL THUNDERSTORMS MAY
  ALSO DEVELOP IN ANY AREAS WHERE BREAKS IN THE LINE ARE
  PRESENT.

  THE SETUP APPEARS FAVORABLE FOR DAMAGING STRAIGHT LINE WIND
  GUSTS UP TO 70 MPH WITH ANY NORTHEASTWARD MOVING LINE
  SEGMENTS. A FEW TORNADOES WILL ALSO BE POSSIBLE WITHIN THESE
  LINE SEGMENTS DUE TO STRONG WIND SHEAR IN THE LOWER LEVELS OF
  THE ATMOSPHERE. ANY SUPERCELLS THAT DEVELOP WILL ALSO HAVE
  THE POTENTIAL TO PRODUCE TORNADOES...ALONG WITH HAIL TO THE
  SIZE OF GOLF BALLS.

  AT THIS TIME...IT APPEARS THAT THE GREATEST THREAT FOR
  SEVERE STORMS AND THE POTENTIAL FOR TORNADOES WILL OCCUR FROM
  NOON THROUGH 8 PM ALONG AND EAST OF A VIENNA TO HARTVILLE TO
  BRANSON LINE. THE THREAT FOR SEVERE STORMS IS EXPECTED TO END
  ACROSS FAR SOUTH CENTRAL MISSOURI BY 9 PM.

  IN ADDITION TO THE RISK FOR SEVERE STORMS ON SUNDAY... LOCALLY
  HEAVY RAINFALL MAY ALSO LEAD TO SOME FLASH FLOODING.

  MEANWHILE...STRONG AND GUSTY NON THUNDERSTORM WINDS WILL OCCUR
  THIS AFTERNOON AND EVENING. THE STRONGEST WINDS ARE EXPECTED TO
  OCCUR NORTH OF THE INTERSTATE 44 CORRIDOR WHERE WINDS OF 25 TO
  35 MPH AND GUSTS TO 45 MPH ARE EXPECTED. A WIND ADVISORY IS IN
  EFFECT FOR THIS AREA.

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

  THUNDERSTORMS WILL AGAIN BE POSSIBLE LATE IN THIS COMING WORK
  WEEK AS ANOTHER STORM SYSTEM APPROACHES THE REGION.

.SPOTTER INFORMATION STATEMENT...

  SPOTTER ACTIVATION WILL LIKELY BE NEEDED FROM LATE THIS MORNING
  INTO EARLY THIS EVENING ALONG AND EAST OF A VIENNA TO HARTVILLE
  TO BRANSON LINE.

&&

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)

SCHAUMANN

In the hours before

Special weather statement, Apr 15, 11:22 AM CDT, 1 hour 30 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1122 AM CDT SUN APR 15 2012

MOZ069-080-081-151700-
CAMDEN MO-LACLEDE MO-DALLAS MO-
1122 AM CDT SUN APR 15 2012

...SIGNIFICANT WEATHER ADVISORY FOR CAMDEN...NORTHERN DALLAS AND
NORTHWESTERN LACLEDE COUNTIES UNTIL NOON CDT...

AT 1118 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR TUNAS...OR 13 MILES NORTH OF
BUFFALO...MOVING NORTHEAST AT 50 MPH. WINDS AROUND 50 MPH AND SMALL
HAIL ARE EXPECTED WITH THIS STORM.

THIS STORM WILL IMPACT LAKE OF THE OZARKS.

THUNDERSTORMS POSE A VARIETY OF HAZARDS TO THOSE OUTDOORS...INCLUDING
HAIL... STRONG WINDS THAT CAN CREATE DANGEROUS FLYING PROJECTILES AND
DEBRIS...AS WELL AS DEADLY CLOUD TO GROUND LIGHTNING. IF YOU ARE IN
THE PATH OF THIS STORM...MOVE INDOORS TO A STURDY SHELTER
IMMEDIATELY.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT SUNDAY EVENING FOR
SOUTHERN MISSOURI.

LAT...LON 3821 9264 3817 9264 3817 9260 3807 9257
      3802 9251 3802 9247 3766 9302 3783 9316
      3790 9312 3791 9308 3798 9307 3819 9293
      3819 9277 3822 9274
TIME...MOT...LOC 1621Z 220DEG 53KT 3786 9298

FOSTER
Local storm report, Apr 15, 12:38 PM CDT, 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1238 PM CDT SUN APR 15 2012

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

1231 PM     HAIL             1 WSW GRANBY            36.91N 94.27W
04/15/2012  E0.75 INCH       NEWTON             MO   TRAINED SPOTTER

&&

MGRIFFIN
Special weather statement, Apr 15, 12:39 PM CDT, 13 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1239 PM CDT SUN APR 15 2012

MOZ088-089-094-151815-
JASPER MO-DADE MO-LAWRENCE MO-
1239 PM CDT SUN APR 15 2012

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN JASPER...NORTHWESTERN
LAWRENCE AND SOUTHWESTERN DADE COUNTIES UNTIL 115 PM CDT...

AT 1236 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 5 MILES SOUTHWEST OF REEDS...OR 10 MILES
SOUTHEAST OF CARTHAGE...MOVING NORTHEAST AT 60 MPH. PENNY SIZE
HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THIS STORM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT SUNDAY EVENING FOR
SOUTHERN MISSOURI.

LAT...LON 3706 9426 3735 9413 3734 9390 3705 9411
      3705 9425
TIME...MOT...LOC 1739Z 206DEG 72KT 3711 9417

FOSTER
Special weather statement, Apr 15, 12:41 PM CDT, 11 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1241 PM CDT SUN APR 15 2012

MOZ066-077-078-151815-
BARTON MO-CEDAR MO-VERNON MO-
1241 PM CDT SUN APR 15 2012

...SIGNIFICANT WEATHER ADVISORY FOR NORTHEASTERN BARTON...
NORTHWESTERN CEDAR AND SOUTHEASTERN VERNON COUNTIES UNTIL 115 PM
CDT...

AT 1236 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM NEAR IRWIN...OR 6 MILES NORTH OF LAMAR...MOVING
NORTHEAST AT 60 MPH. PENNY SIZE HAIL...AND WINDS AROUND 50 MPH ARE
EXPECTED WITH THIS STORM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT SUNDAY EVENING FOR
SOUTHERN MISSOURI.

LAT...LON 3790 9414 3790 9386 3789 9383 3754 9421
      3755 9440
TIME...MOT...LOC 1741Z 208DEG 77KT 3767 9421

FOSTER
Special weather statement, Apr 15, 12:50 PM CDT, 2 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1250 PM CDT SUN APR 15 2012

MOZ067-151815-
ST. CLAIR MO-
1250 PM CDT SUN APR 15 2012

...SIGNIFICANT WEATHER ADVISORY FOR WESTERN ST. CLAIR COUNTY UNTIL
115 PM CDT...

AT 1246 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 18 MILES SOUTHWEST OF TIFFIN...OR 11 MILES
SOUTHWEST OF EL DORADO SPRINGS...MOVING NORTHEAST AT 85 MPH. PENNY
SIZE HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THIS STORM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT SUNDAY EVENING FOR
SOUTHERN MISSOURI.

LAT...LON 3820 9365 3790 9388 3790 9407 3793 9407
      3822 9398
TIME...MOT...LOC 1751Z 209DEG 76KT 3784 9408

FOSTER
Special weather statement, Apr 15, 12:52 PM CDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1252 PM CDT SUN APR 15 2012

MOZ078-089-151830-
CEDAR MO-DADE MO-
1252 PM CDT SUN APR 15 2012

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN CEDAR AND WESTERN DADE
COUNTIES UNTIL 130 PM CDT...

AT 1250 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING
A STRONG THUNDERSTORM 5 MILES SOUTHWEST OF MEINERT...OR 14 MILES
SOUTHWEST OF GREENFIELD...MOVING NORTHEAST AT 80 MPH. PENNY SIZE
HAIL...AND WINDS AROUND 50 MPH ARE EXPECTED WITH THIS STORM.

A TORNADO WATCH REMAINS IN EFFECT UNTIL 600 PM CDT SUNDAY EVENING FOR
SOUTHERN MISSOURI.

LAT...LON 3741 9408 3785 9384 3784 9381 3783 9381
      3783 9363 3774 9363 3729 9391 3729 9408
TIME...MOT...LOC 1753Z 208DEG 69KT 3734 9402

FOSTER

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 15, 12:54 AM CDTAreal Flood AdvisorySGFBenton, Camden, Dallas, Laclede, Maries, Miller and 4 more12 hr
Apr 15, 4:13 AM CDTWind AdvisorySGFBarton, Benton, Camden, Cedar, Dade, Dallas and 11 more14 hr
Apr 15, 7:21 AM CDTSevere Thunderstorm WarningSGFBarton, Jasper39 min
Apr 15, 7:42 AM CDTSevere Thunderstorm WarningSGFBarton, Vernon36 min
Apr 15, 8:20 AM CDTSpecial Weather StatementSGFSt. Clair25 min
Apr 15, 8:45 AM CDTSpecial Weather StatementSGFBenton45 min
Apr 15, 8:55 AM CDTFlash Flood WarningSGFBarton, Jasper, Newton6 hr
Apr 15, 9:59 AM CDTSpecial Weather StatementSGFLawrence31 min
Apr 15, 11:22 AM CDTSpecial Weather StatementSGFCamden, Dallas38 min
Apr 15, 12:39 PM CDTSpecial Weather StatementSGFJasper36 min
Apr 15, 12:41 PM CDTSpecial Weather StatementSGFCedar34 min
Apr 15, 12:50 PM CDTSpecial Weather StatementSGFSt. Clair25 min
Apr 15, 12:54 PM CDTSevere Thunderstorm WarningSGFCedar, St. Clair21 min
Apr 15, 1:14 PM CDTSevere Thunderstorm WarningSGFBarry, Stone29 min
Apr 15, 1:47 PM CDTSpecial Weather StatementSGFDallas, Greene28 min
Apr 15, 1:49 PM CDTSevere Thunderstorm WarningSGFBarry14 min
Apr 15, 3:18 PM CDTAreal Flood WarningSGFDallas, Polk2 hr
Apr 15, 3:26 PM CDTFlash Flood WarningSGFChristian, Greene, Stone, Taney, Webster2 hr
Apr 15, 3:58 PM CDTSevere Thunderstorm WarningSGFCamden, Dallas, Laclede26 min
Apr 15, 4:11 PM CDTSevere Thunderstorm WarningSGFMiller, Morgan22 min
Apr 15, 4:55 PM CDTAreal Flood AdvisorySGFDouglas, Ozark, Webster, Wright6 hr
Apr 15, 5:04 PM CDTFlash Flood WarningSGFCamden, Laclede, Maries, Miller, Phelps, Pulaski6 hr
Apr 15, 5:30 AM CDTSpecial Weather StatementSGFBourbon60 min
Apr 15, 6:41 AM CDTSevere Thunderstorm WarningSGFBourbon, Cherokee, Crawford49 min

Nearby

Special Weather Statements in Missouri, 2012Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.