Special Weather Statement, NWS Springfield, MO

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
252 AM CDT SAT MAY 7 2011

.DISCUSSION...
FANTASTIC CONDITIONS WERE OBSERVED OVER EXTREME SOUTHEAST KANSAS AND
THE MISSOURI OZARKS OVERNIGHT.  EARLY MORNING TEMPERATURES COOLED
DOWN INTO THE MID AND UPPER 50S...WHILE LIGHT SOUTHERLY BREEZES
PERSISTED.  DRY WEATHER WAS ONGOING ACROSS THE OZARKS
REGION...HOWEVER...A CLUSTER OF SHOWERS AND THUNDERSTORMS WERE
DEVELOPING NEAR THE INTERSTATE 70 CORRIDOR OF NORTHWEST MISSOURI AND
NORTHEAST KANSAS.

THIS CLUSTER OF THUNDERSTORMS WILL LIKELY TAKE A TRAJECTORY TO THE
SOUTH AND EAST...IMPACTING THE OZARKS REGION WITH SOME RAINFALL
THROUGH THE MORNING HOURS.  I DON'T THINK ALL LOCATIONS WILL
EXPERIENCE THIS ACTIVITY...BUT MOST AREAS WILL.  SHORT RANGE MODELS
HAVE THIS CONVECTIVE CLUSTER EXITING THE EASTERN OZARKS RIGHT AROUND
MID DAY...ALLOWING FOR WARM AND INCREASINGLY HUMID CONDITIONS FOR
YOUR SATURDAY AFTERNOON ACTIVITIES.  NO SEVERE THUNDERSTORMS ARE
EXPECTED WITH THESE STORMS. HOWEVER...IT'S NOT OUT OF THE REALM OF
POSSIBILITY THAT A COUPLE OF THE STRONGER UPDRAFTS PRODUCE SOME
SMALL HAIL FROM TIME TO TIME.

IT APPEARS AS THOUGH AN EXTENDED PERIOD OF DRY WEATHER WILL OCCUR
FROM THIS AFTERNOON THROUGH AT LEAST WEDNESDAY MORNING.  A 100 KNOT
SPEED MAX WILL CARVE OUT A LONG WAVE TROUGH ACROSS THE INTERMOUNTAIN
WEST DURING THIS TIME FRAME...POPPING UPPER SOUTHWEST FLOW ACROSS
THE NATIONS MID SECTION THROUGH WEDNESDAY.  THIS WILL PROMOTE HOT
AND HUMID WEATHER...MUCH LIKE WHAT WE WOULD EXPERIENCE TOWARD LATE
JUNE.  AFTERNOON TEMPERATURES WILL WARM WELL INTO THE 80S ON A DAILY
BASIS SUNDAY THROUGH WEDNESDAY...WHILE OVERNIGHT LOWS ONLY FALL INTO
THE MID AND UPPER 60S.  HELLO SUMMER.

BOTH THE GFS AND THE ECMWF SUGGEST THAT SHOWERS AND THUNDERSTORMS
WILL ERUPT ALONG A KANSAS DRY LINE WEDNESDAY AFTERNOON IN RESPONSE
TO A BELT OF UPPER LEVEL LIFT THAT OVERSPREADS THIS FEATURE.  THESE
STORMS WILL TRACK DIRECTLY OVER THE MISSOURI OZARKS REGION WEDNESDAY
EVENING AND NIGHT IF THE GFS SOLUTION WAS TO MATERIALIZE.  MEANWHILE
THE ECMWF HAS MORE OF A SIGNAL FOR A PLAINS EPISODE OF SEVERE
WEATHER...AND KEEPING THE OZARKS AIRMASS CAPPED AND AWAY FROM THE
DRY LINE.  IF THE GFS BEGINS TO TREND TOWARD THIS ECMWF
SOLUTION...THEN WE MAY NEED TO START CUTTING BACK ON POPS FOR THE
WEDNESDAY NIGHT INTO THURSDAY TIME FRAME.

CRAMER

&&

.AVIATION...

FOR THE 06Z KSGF...KJLN AND KBBG TAFS...A STRONG LOW LEVEL JET
WILL SPREAD OVER THE REGION OVERNIGHT...CREATING LOW LEVEL WIND
SHEAR CONCERNS AT THE TAF SITES.

AN UPPER LEVEL DISTURBANCE WILL ALSO TRACK ACROSS THE REGION
OVERNIGHT. SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP
ACROSS EAST CENTRAL KANSAS OVERNIGHT AND WILL SPREAD TO THE SOUTH
AND EAST. THE BETTER COVERAGE OF SHOWERS AND THUNDERSTORMS SHOULD
REMAIN NORTH OF THE TAF SITES WITH MORE SCATTERED ACTIVITY
EXPECTED FARTHER TO THE SOUTH AT THIS TIME. THEREFORE...HAVE GONE
WITH TEMPO GROUPS TO ACCOUNT FOR THIS ACTIVITY.

WISE

&&

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

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SPRINGFIELD MO
448 AM CDT SAT MAY 7 2011

KSZ073-097-101-MOZ055>058-066>071-077>083-088>098-101>106-080945-
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-
448 AM CDT SAT MAY 7 2011

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

.DAY ONE...TODAY AND TONIGHT.

THE HAZARDOUS WEATHER RISK LEVEL IS...ELEVATED.

WEATHER HAZARDS EXPECTED...

 ELEVATED RISK FOR LIGHTNING.
 LIMITED RISK FOR LARGE HAIL.

DISCUSSION...

 A CLUSTER OF THUNDERSTORMS WILL TRANSLATE ACROSS SOUTHERN MISSOURI
 THIS MORNING.  A FEW OF THESE STORMS WILL CONTAIN LARGE HAIL UP TO
 THE SIZE OF QUARTERS. FREQUENT CLOUD TO GROUND LIGHTNING WILL ALSO
 ACCOMPANY THESE STORMS.

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

 THUNDERSTORMS WILL ONCE AGAIN BE POSSIBLE BY WEDNESDAY EVENING
 OF NEXT WEEK.

.SPOTTER INFORMATION STATEMENT...

 SPOTTER ACTIVATION WILL BE NEEDED THIS MORNING FOR AREAS EAST OF
 THE HIGHWAY 71 CORRIDOR.

&&

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)

CRAMER

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
432 AM CDT SAT MAY 7 2011

MOZ066-071000-
VERNON MO-
432 AM CDT SAT MAY 7 2011

...SIGNIFICANT WEATHER ALERT FOR VERNON COUNTY UNTIL 500 AM CDT...

AT 427 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR MOUNDVILLE...OR 7 MILES WEST OF NEVADA...
MOVING EAST AT 40 MPH. NICKEL SIZE HAIL IS EXPECTED WITH THIS STORM.

LOCATIONS IMPACTED INCLUDE BRONAUGH...DEERFIELD...HARWOOD...MILO...
MONTEVALLO...MOUNDVILLE...NEVADA...RICHARDS...SHELDON AND WALKER.

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

LAT...LON 3792 9460 3801 9406 3764 9407 3765 9460
TIME...MOT...LOC 0932Z 283DEG 33KT 3779 9441

DSA

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
437 AM CDT SAT MAY 7 2011

MOZ102-071015-
BARRY MO-
437 AM CDT SAT MAY 7 2011

...SIGNIFICANT WEATHER ALERT FOR SOUTHERN BARRY COUNTY UNTIL 515 AM
CDT...

AT 432 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING A
STRONG THUNDERSTORM NEAR SELIGMAN...OR 13 MILES SOUTHWEST OF
CASSVILLE...MOVING EAST AT 45 MPH. NICKEL SIZE HAIL IS EXPECTED WITH
THIS STORM.

LOCATIONS IMPACTED INCLUDE EAGLE ROCK...GOLDEN...SELIGMAN...SHELL
KNOB AND WASHBURN.

OTHER LOCATIONS IN THIS SIGNIFICANT WEATHER ALERT INCLUDE ROARING
RIVER STATE PARK AND TABLE ROCK LAKE.

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.

LAT...LON 3661 9406 3664 9358 3650 9358 3649 9406
TIME...MOT...LOC 0938Z 267DEG 39KT 3651 9388

DSA

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
441 AM CDT SAT MAY 07 2011

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

0440 AM     HAIL             3 W GOLDEN CITY         37.39N 94.15W
05/07/2011  E1.00 INCH       BARTON             MO   EMERGENCY MNGR

&&

DCRAMER

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
449 AM CDT SAT MAY 07 2011

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

0420 AM     HAIL             RICHARDS                37.91N 94.56W
05/07/2011  E0.75 INCH       VERNON             MO   LAW ENFORCEMENT

&&

DSA

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SPRINGFIELD MO
450 AM CDT SAT MAY 07 2011

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

0440 AM     HAIL             GOLDEN CITY             37.39N 94.09W
05/07/2011  E1.00 INCH       BARTON             MO   EMERGENCY MNGR

&&

DSA

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