Tuesday, September 21, 2010

Area Forecast Discussion - South Central/Southwest Missouri

FXUS63 KSGF 210750
AFDSGF

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
250 AM CDT TUE SEP 21 2010

DISCUSSION...

THE PRIMARY CHALLENGES FOR THIS FORECAST PACKAGE WILL BE THAT OF
FRONTAL PASSAGE AND AN ASSOCIATED COOL AIR MASS CHANGE LATE IN THE
WEEK.

THE PRIMARY JET TRACK WILL REMAIN OVER THE NORTHERN TIER OF STATES
THROUGH THE MID WEEK PERIOD WITH SEVERAL EMBEDDED WAVES SUPPORTING
FRONTAL BOUNDARIES. THE FIRST BOUNDARY WILL APPROACH THE AREA FROM
THE NORTH ON WEDNESDAY. THIS FRONT IS NOT EXPECTED TO PASS THROUGH
THE AREA WITH THE MAIN SUPPORTING WAVE PUSHING OFF TO THE NORTH AND
EAST. WITH THE FRONT REMAINING WELL TO THE NORTH...TEMPERATURES
WILL REMAIN WARM WITH HIGHS IN THE MID 80S. AROUND MID WEEK...THE
PATTERN WILL BEGIN TO AMPLIFY WITH RIDGING FORMING UP OVER THE
WESTERN CONUS WITH DOWNSTREAM NORTHWEST FLOW. A SECOND AND MUCH
STRONGER BOUNDARY WILL MOVE TOWARD THE AREA ON FRIDAY SUPPORTED BY A
STRONG SHORTWAVE DIVING OUT OF CANADA IN THE NORTHWEST FLOW ALOFT.
THIS FRONT WILL BRING WIDESPREAD CHANCES FOR RAINFALL AND MUCH
COOLER TEMPERATURES WITH HIGHS IN THE MID TO UPPER 70S. AND DRY
CONDITIONS. A COOLER AND PLEASANT WEEKEND IS LOOKING TO BE IN
STORE FOR THE AREA.

KARDELL

&&

AVIATION...
/ISSUED 1125 PM CDT MON SEP 20 2010/

VFR CONDITIONS WILL CONTINUE TONIGHT AND TUESDAY AS SURFACE HIGH
PRESSURE CENTERED TO THE EAST REMAINS THE DOMINANT WEATHER
FEATURE. SOME PATCHY FOG MAY IMPACT THE BRANSON TERMINAL
AROUND SUNRISE TUESDAY. MARGINAL LOW LEVEL WIND SHEAR MAY DEVELOP
OVERNIGHT AS THE LOW LEVEL JET STRENGTHENS. SOUTHERLY WINDS WILL
BECOME GUSTY AT THE SURFACE DURING THE DAY ON TUESDAY.

FOSTER

&&

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

$$

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