Alert archive / Missouri / Severe Thunderstorm Warnings in 2012

Severe Thunderstorm Warning 206, NWS Springfield, MO

August 4, 2012Pulaski County, Missouri

NWS Springfield, MO issued this severe thunderstorm warning at Aug 4, 2012, 11:35 PM CDT for Pulaski County, Missouri. It was in force for 14 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: Aug 4, 2012, 11:35 PM CDT (04:35 UTC)
Expired: Aug 4, 2012, 11:49 PM CDT
In force: 14 min
Issued by: NWS Springfield, MO
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Pulaski County, MO

The radar

The Springfield radar (KSGF), 129 km from the middle of the area, began a volume at 04:36 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
Aug 4, 6:12 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 00:00Z, 4.6 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: 1173 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 2913 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 40 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.

054 
WUUS53 KSGF 050435
SVRSGF
MOC169-050515-
/O.NEW.KSGF.SV.W.0206.120805T0435Z-120805T0515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1135 PM CDT SAT AUG 4 2012

THE NATIONAL WEATHER SERVICE IN SPRINGFIELD HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  PULASKI COUNTY IN CENTRAL MISSOURI...

* UNTIL 1215 AM CDT

* AT 1131 PM CDT...A SEVERE THUNDERSTORM WAS LOCATED NEAR
  WAYNESVILLE...AND MOVING SOUTHEAST AT 25 MPH.

  HAZARD...60 MPH WIND GUSTS.

  SOURCE...RADAR INDICATED.

  IMPACT...MINOR TREE DAMAGE...WITH LIMBS UP TO ONE INCH IN DIAMETER
           BROKEN.

* LOCATIONS IMPACTED INCLUDE...
  CROCKER...DEVIL'S ELBOW...NORTHEASTERN FORT LEONARD WOOD...ST.
  ROBERT AND WAYNESVILLE.

INTERSTATE 44 BETWEEN MILE MARKERS 152 AND 168 WILL ALSO BE IMPACTED
BY THE SEVERE THUNDERSTORM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3797 9216 3793 9202 3772 9202 3769 9204
      3773 9215 3781 9230 3791 9230 3795 9227
      3797 9223
TIME...MOT...LOC 0435Z 296DEG 22KT 3783 9221

HAIL...<.75IN
WIND...60 MPH

$$

CRAMER

1 follow-up statement

101 
WWUS53 KSGF 050449
SVSSGF

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1149 PM CDT SAT AUG 4 2012

MOC169-050500-
/O.CAN.KSGF.SV.W.0206.000000T0000Z-120805T0515Z/
PULASKI MO-
1149 PM CDT SAT AUG 4 2012

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN PULASKI COUNTY IS
CANCELLED...

THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE
LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY.

LAT...LON 3797 9216 3793 9202 3772 9202 3769 9204
      3773 9215 3781 9230 3791 9230 3795 9227
      3797 9223
TIME...MOT...LOC 0450Z 296DEG 22KT 3779 9211

$$

CRAMER

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 Aug 4, 7:13 PM CDT, 4 hours 22 minutes earlier.

Area forecast discussion, Aug 4, 7:13 PM CDT, 4 hours 22 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
713 PM CDT SAT AUG 4 2012

...UPDATE TO AVIATION...

...MESOSCALE CONVECTIVE DISCUSSION...

.UPDATE...

TWO AREAS OF THUNDERSTORMS HAVE DEVELOPED ACROSS THE REGION EARLY
THIS EVENING ONE FROM KIMBERLING CITY TO ROLLA MISSOURI AND
ANOTHER ACROSS WESTERN MISSOURI INTO NORTHEASTERN OKLAHOMA. A
COLD FRONT IS CURRENTLY LOCATED FROM PITTSBURG KANSAS TO ELDON
MISSOURI HAS OF 7 PM. THE COLD FRONT WILL CONTINUE TO STEADILY
TRACK TO THE SOUTHEAST AS THE STORMS THAT DEVELOPED AHEAD OF IT
TRACK TO THE EAST. THE ATMOSPHERE HAS BECOME QUITE UNSTABLY WITH
THE HEATING OF THE DAY WHICH WILL ALLOW STRONG TO SEVERE STORMS TO
OCCUR WITHIN THIS ACTIVITY. WITH DRY AIR IN PLACE UNDER THE CLOUD
BASE...DAMAGING WINDS IN EXCESS OF 60 MPH WILL BE POSSIBLE. THE DRY
AIR WILL LIMITED THE HAIL RISK TO HAIL TO THE SIZE OF DIMES...BUT
WITH THE STRONGER UPDRAFTS A FEW HAIL STONES TO QUARTERS WILL BE
POSSIBLE. WITH ACTIVITY SHOULD BEGIN TO PUSH EAST AND SOUTH OF THE
AREA AND WEAK LATE THIS EVENING INTO THE EARLY OVERNIGHT HOURS. A
SEVERE STORM WATCH HAS BEEN ISSUED FOR MUCH OF THE MISSOURI OZARKS
UNTIL MIDNIGHT TONIGHT.

WISE

&&

.SHORT TERM (TONIGHT THROUGH MONDAY NIGHT)...

MODELS HAVE THE FRONT MOVING INTO THE AREA THIS AFTERNOON INTO
TONIGHT. MLCAPE VALUES OF 1500-2500 J/KG CURRENTLY OVER THE AREA
BUT WITH H7 TEMPERATURES IN THE 12-14C RANGE...ATMOSPHERE REMAINS
CAPPED. WILL PROBABLY TAKE THE FRONT MOVING INTO THE AREA TO
FINALLY BREAK THE CAP AND INITIATE STORMS. WITH INVERTED-V
SOUNDINGS AND GOOD DOWNDRAFT CAPE...PRIMARY THREAT WILL BE
DAMAGING WINDS WITH THESE STORMS. EXPECT CONVECTION TO BE OF A
SCATTERED NATURE...SO MOST LOCATIONS WILL PROBABLY SEE NO MORE
THAN 0.50 INCHES OF RAINFALL AT BEST.

FRONT THEN MOVES THROUGH THE AREA BY SUNDAY MORNING ALLOWING
SLIGHTLY COOLER AND DRIER AIR TO MOVE OVER THE REGION.
TEMPERATURES BY MONDAY WILL BE CLOSER TO SEASONAL NORMALS WITH
LOWS IN THE LOW TO MID 60S AND HIGHS IN THE LOW 90S.

GAEDE

&&
.LONG TERM (TUESDAY THROUGH SATURDAY)...

UPPER LEVEL HIGH THEN RETROGRADES AND BUILDS WESTWARD ALLOWING THE
REGION TO GET INTO NORTHWEST FLOW AND SLIGHTLY COOLER
TEMPERATURES. WILL ALSO SEE SOME WAVES COME UP AND OVER THE HIGH
MID TO LATE WEEK. NOT CARRYING ANY CHANCE POPS AT THIS TIME.

GAEDE

&&

.AVIATION...

FOR THE 100Z KSGF...KJLN AND KBBG TAFS...THUNDERSTORMS HAVE
DEVELOPED ACROSS THE REGION AHEAD OF AN APPROACHING COLD FRONT
EARLY THIS EVENING. THIS ACTIVITY WILL CLEAR FROM WEST TO EAST
THIS EVENING AND IMPACT THE TAF SITES EARLY THIS EVENING.

BEHIND THE FRONT WILL BECOMING NORTHWESTERLY WITH SKIES CLEARING
DURING THE OVERNIGHT HOURS...WITH VFR CONDITIONS THROUGH THE DAY
ON SUNDAY.

&&

.SGF WATCHES/WARNINGS/ADVISORIES...
MO...HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING FOR MOZ055>058-066>071-
     078>083-089>092-094>098-102>106.

     EXCESSIVE HEAT WARNING UNTIL 8 PM CDT THIS EVENING FOR MOZ077-
     088-093-101.

     RED FLAG WARNING UNTIL 8 PM CDT THIS EVENING FOR MOZ077-088-093-
     101.

KS...HEAT ADVISORY UNTIL 8 PM CDT THIS EVENING FOR KSZ073.

     EXCESSIVE HEAT WARNING UNTIL 8 PM CDT THIS EVENING FOR KSZ097-
     101.

     RED FLAG WARNING UNTIL 8 PM CDT THIS EVENING FOR KSZ097-101.

&&

Hazardous weather outlook, Aug 4, 9:55 PM CDT, 1 hour 40 minutes before

HAZARDOUS WEATHER OUTLOOK...CORRECTED
NATIONAL WEATHER SERVICE SPRINGFIELD MO
955 PM CDT SAT AUG 4 2012

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-060300-
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-
955 PM CDT SAT AUG 4 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.
  ELEVATED LIGHTNING RISK.

DISCUSSION...

  AN AREA OF THUNDERSTORMS CONTINUES TO TRACK EAST ACROSS SOUTHERN
  MISSOURI LATE THIS EVENING...AND WILL PUSH EAST OF THE AREA
  SHORTLY AFTERNOON MIDNIGHT DURING THE EARLY OVERNIGHT HOURS. A
  FEW STRONG STORMS WILL BE POSSIBLE WITH WINDS IN EXCESS OF 50
  MPH AND DIME SIZE HAIL POSSIBLE. ALSO...HEAVY RAINFALL THAT
  COULD LEAD TO PONDING OF WATER ON ROADWAYS AND FREQUENT CLOUD TO
  ROUND LIGHTNING STRIKES WILL OCCUR WITH THIS ACTIVITY.

  ADDITIONAL ISOLATED TO SCATTERED THUNDERSTORMS ARE DEVELOPING
  FROM EAST CENTRAL KANSAS INTO CENTRAL MISSOURI LATE THIS
  EVENING. THIS ACTIVITY WILL TRACK SOUTH THROUGH THE AREA DURING
  THE OVERNIGHT HOURS INTO EARLY SUNDAY MORNING. THIS ACTIVITY IS
  NOT EXPECTED TO BECOME SEVERE...WITH BRIEF HEAVY RAINFALL AND
  FREQUENT CLOUD TO GROUND LIGHTNING STRIKES THE PRIMARY RISK WITH
  ANY THUNDERSTORMS THAT DEVELOP OVERNIGHT.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

  TEMPERATURES WILL RANGE FROM THE LOWER 90S TO THE HIGHER 90S ON
  AN AFTERNOON BASIS THROUGH NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

  SPOTTER ACTIVATION MAY BE NEEDED THROUGH MIDNIGHT ACROSS SOUTH
  CENTRAL MISSOURI.

&&

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)

WFO SGF

In the hours before

Local storm report, Aug 4, 9:19 PM CDT, 2 hours 16 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
919 PM CDT SAT AUG 04 2012

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

0825 PM     TSTM WND GST     4 SW MARSHFIELD         37.30N 92.96W
08/04/2012  E50 MPH          WEBSTER            MO   PUBLIC

            NICKEL HAIL ALSO.

&&

GAEDE

Local storm report, Aug 4, 9:53 PM CDT, 1 hour 42 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
953 PM CDT SAT AUG 04 2012

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

0755 PM     TSTM WND DMG     4 NW WALNUT SHADE       36.77N 93.24W
08/04/2012                   TANEY              MO   LAW ENFORCEMENT

            *** 1 INJ *** NUMEROUS TREES DOWN WITH ONE HOME DAMAGED
            NEAR GOODNIGHT HOLLOW AND ROUND MOUNTAIN ROADS.

&&

GAEDE

Local storm report, Aug 4, 10:35 PM CDT, 1 hour before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1035 PM CDT SAT AUG 04 2012

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

0921 PM     TSTM WND DMG     14 W AVA                36.95N 92.91W
08/04/2012                   CHRISTIAN          MO   LAW ENFORCEMENT

            SEVERE THUNDERSTORM WIND GUSTS DOWNED SEVERAL TREES.

&&

DCRAMER

Local storm report, Aug 4, 10:42 PM CDT, 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1042 PM CDT SAT AUG 04 2012

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

1033 PM     TSTM WND GST     2 S LANAGAN             36.58N 94.45W
08/04/2012  E60 MPH          MCDONALD           MO   EMERGENCY MNGR

            SHERIFF DEPUTY REPORTED 60 TO 70 MPH WIND GUSTS SOUTH OF
            LANAGAN. SAID THAT THE WIND GUSTS NEARLY BLEW HIM OFF THE
            ROADWAY.

&&

DCRAMER

Local storm report, Aug 4, 10:43 PM CDT, 52 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1043 PM CDT SAT AUG 04 2012

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

1035 PM     TSTM WND GST     PINEVILLE               36.59N 94.38W
08/04/2012  E60 MPH          MCDONALD           MO   EMERGENCY MNGR

            SHERIFF DEPUTY ESTIMATED 60 MPH WIND GUSTS NORTH OF
            PINEVILLE.

&&

DCRAMER

Local storm report, Aug 4, 10:48 PM CDT, 47 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1048 PM CDT SAT AUG 04 2012

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

1035 PM     TSTM WND DMG     PINEVILLE               36.59N 94.38W
08/04/2012                   MCDONALD           MO   EMERGENCY MNGR

            SEVERE THUNDERTORM WIND GUSTS DOWNED LARGE TREE LIMBS.

&&

DCRAMER

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 4, 7:10 PM CDT	Severe Thunderstorm Warning	SGF	Dent, Phelps	17 min
Aug 4, 7:11 PM CDT	Severe Thunderstorm Warning	SGF	Barton, Cedar, Dade, Greene, Polk	49 min
Aug 4, 7:17 PM CDT	Severe Thunderstorm Warning	SGF	Phelps	28 min
Aug 4, 7:22 PM CDT	Special Weather Statement	SGF	Christian	23 min
Aug 4, 7:25 PM CDT	Special Weather Statement	SGF	Texas	35 min
Aug 4, 7:42 PM CDT	Severe Thunderstorm Warning	SGF	Dade, Greene, Lawrence, Polk	5 min
Aug 4, 7:45 PM CDT	Severe Thunderstorm Warning	SGF	Texas	45 min
Aug 4, 7:45 PM CDT	Severe Thunderstorm Warning	SGF	Cedar, Dade, Greene, Polk	45 min
Aug 4, 7:51 PM CDT	Severe Thunderstorm Warning	SGF	Dade, Greene, Lawrence	39 min
Aug 4, 7:53 PM CDT	Severe Thunderstorm Warning	SGF	Ozark	52 min
Aug 4, 7:53 PM CDT	Severe Thunderstorm Warning	SGF	Dade, Jasper, Lawrence	52 min
Aug 4, 8:03 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Lawrence, Newton	42 min
Aug 4, 8:12 PM CDT	Severe Thunderstorm Warning	SGF	Texas	33 min
Aug 4, 8:18 PM CDT	Severe Thunderstorm Warning	SGF	Dallas, Greene, Laclede, Polk, Webster	42 min
Aug 4, 8:27 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Dade, Greene, Lawrence, Stone	22 min
Aug 4, 8:33 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Ozark	25 min
Aug 4, 8:38 PM CDT	Severe Thunderstorm Warning	SGF	Howell, Shannon, Texas	36 min
Aug 4, 8:43 PM CDT	Severe Thunderstorm Warning	SGF	Wright	47 min
Aug 4, 8:45 PM CDT	Severe Thunderstorm Warning	SGF	Maries, Phelps	21 min
Aug 4, 8:51 PM CDT	Severe Thunderstorm Warning	SGF	Barry, Christian, Lawrence, Stone, Taney	39 min
Aug 4, 9:04 PM CDT	Severe Thunderstorm Warning	SGF	Christian, Douglas	56 min
Aug 4, 10:30 PM CDT	Severe Thunderstorm Warning	SGF	McDonald	34 min
Aug 5, 12:09 AM CDT	Severe Thunderstorm Warning	SGF	Greene	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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.