Alert archive / Missouri / Special Weather Statements in 2012

Special Weather Statement, NWS Springfield, MO

April 27, 2012Benton County, Missouri

NWS Springfield, MO issued this special weather statement at Apr 27, 2012, 12:02 PM CDT for Benton County, Missouri. It was in force for 28 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 27, 2012, 12:02 PM CDT (17:02 UTC)
Expired: Apr 27, 2012, 12:30 PM CDT
In force: 28 min
Issued by: NWS Springfield, MO

County Benton County, MO

The radar

The Pleasant Hill radar (KEAX), 96 km from the middle of the area, began a volume at 17:03 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

Topeka, KS (KTOP), launched 12:00Z, 5.0 hours before the alert went out and 209 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1420 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 272 m²/s²
0-3 km storm-relative helicity: 417 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 27, 10:38 AM CDT, 1 hour 24 minutes earlier.

Area forecast discussion, Apr 27, 10:38 AM CDT, 1 hour 24 minutes before

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Hazardous weather outlook, Apr 27, 10:06 AM CDT, 1 hour 56 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
1006 AM CDT FRI APR 27 2012

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-281515-
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-
1006 AM CDT FRI APR 27 2012

...SEVERE THUNDERSTORMS EXPECTED LATE THIS AFTERNOON AND
EVENING...

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

DISCUSSION...

A FEW THUNDERSTORMS ARE EXPECTED FROM THIS MORNING INTO EARLY
THIS AFTERNOON AS A WARM FRONT BEGINS TO MOVE NORTHEAST INTO THE
OUTLOOK AREA. THE MAIN RISKS WITH THESE STORMS WILL BE OCCASIONAL
CLOUD TO GROUND LIGHTNING AND HAIL TO THE SIZE OF PENNIES.

STRONG TO SEVERE THUNDERSTORMS ARE THEN EXPECTED TO FORM DURING
THE MID AND LATE AFTERNOON HOURS OVER EASTERN KANSAS...WITH STORMS
THEN MOVING INTO FAR SOUTHEASTERN KANSAS AND WESTERN MISSOURI
BETWEEN 4 AND 6 PM. STORMS WILL THEN CONTINUE TO DEVELOP AND PUSH
EAST INTO MISSOURI THIS EVENING.

VERY LARGE HAIL TO THE SIZE OF BASEBALLS...DAMAGING WIND GUSTS
OVER 60 MPH...AND A FEW TORNADOES WILL ALL BE POSSIBLE. THE
GREATEST RISK FOR SEVERE STORMS WILL BE ALONG AND NORTHWEST OF A
LINE FROM ANDERSON...TO SPRINGFIELD...TO LAKE OF THE OZARKS.

EAST TO SOUTHEAST WINDS GUSTING TO 40 MPH WILL ALSO OCCUR IN SOME
AREAS TODAY. BOATERS ON AREA LAKES ARE URGED TO USE EXTRA
CAUTION.

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

UNSETTLED WEATHER WILL CONTINUE AT TIMES IN THE FORM OF ISOLATED
TO SCATTERED THUNDERSTORMS OVER THE WEEKEND AND EARLY NEXT WEEK.

A FEW STRONG TO MARGINALLY SEVERE STORMS WILL BE POSSIBLE ON
SATURDAY ACROSS MAINLY SOUTHERN MISSOURI.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED LATER TODAY OR TONIGHT FOR AREAS
ALONG AND NORTHWEST OF A LINE FROM ANDERSON...TO SPRINGFIELD...TO
LAKE OF THE OZARKS.

&&

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)

BOXELL

In the hours before

Special weather statement, Apr 27, 10:48 AM CDT, 1 hour 14 minutes before

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Local storm report, Apr 27, 11:00 AM CDT, 1 hour 2 minutes before

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Special weather statement, Apr 27, 11:06 AM CDT, 56 minutes before

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Special weather statement, Apr 27, 11:28 AM CDT, 34 minutes before

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Special weather statement, Apr 27, 11:35 AM CDT, 27 minutes before

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Special weather statement, Apr 27, 12:02 PM CDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 10:36 AM CDT	Special Weather Statement	SGF	Greene	24 min
Apr 27, 10:48 AM CDT	Special Weather Statement	SGF	Dallas, Greene	27 min
Apr 27, 11:06 AM CDT	Special Weather Statement	SGF	Cedar	24 min
Apr 27, 11:28 AM CDT	Special Weather Statement	SGF	Hickory, St. Clair	32 min
Apr 27, 11:35 AM CDT	Special Weather Statement	SGF	Dallas	25 min

Nearby

Special Weather Statements in Missouri, 2012 Every 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.