Sunday, August 22, 2010

Area Forecast Discussion - South Central/Southwest Missouri

FXUS63 KSGF 222224
AFDSGF

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
524 PM CDT SUN AUG 22 2010

..UPDATE TO AVIATION...

DISCUSSION...
/ISSUED 103 PM CDT SUN AUG 22 2010/

A RIDGE OF HIGH PRESSURE THAT EXTENDS FROM THE WESTERN GREAT LAKES
TO OKLAHOMA WILL SLOWLY SHIFT EAST TONIGHT INTO MON. WITH
TEMPERATURES EXPECTED TO FALL INTO THE UPPER 60S AND RELATIVELY
HIGH DAYTIME DEW POINTS...COULD SEE SOME AREAS OF FOG ONCE
AGAIN...ESPECIALLY NEAR LAKES AND RIVER/CREEK VLYS.

A SHORTWAVE NOW JUST INLAND ALONG THE WEST COAST WILL SHIFT EAST
THROUGH THE PLAINS TO ONTARIO AND THE WESTERN GREAT LAKES BY TUE
EVENING. A TRAILING FRONT IS EXPECTED TO MOVE THROUGH THE CWFA TUE
NIGHT. WITH SPARSE MOISTURE AND BETTER CONVERGENCE TO THE NORTH
AND WEST-SOUTH...NOT ADDING ANY POPS TO THE FORECAST.

THE SHORTWAVE WILL SUPPRESS THE RIDGE TO THE SOUTHWEST FOR A BRIEF
PERIOD WED-THU WITH A VERY DRY N-NE SFC FLOW OVER THE REGION AND COOLER
TEMPERATURES. THE UPPER RIDGE WILL SHIFT BACK TO THE EAST LATE IN
THE WEEK AND EAST OF THE MS VLY BY NEXT WEEKEND. SIGNIFICANT
MOISTURE RETURN WILL BE SLOW EVEN WITH A MORE S-LY FLOW WITH A
PERISISTENT RIDGE OF HIGH PRESSURE ALONG THE GULF COAST. DSA

&&

AVIATION...

FOR THE 00Z TAFS...HIGH PRESSURE WILL REMAIN IN CONTROL ACROSS THE
REGION THROUGH THE PERIOD. DRIER AIR WILL BEGIN TO WORK INTO THE
AREA FROM THE NORTHEAST OVER THE 24 HOUR TAF PERIOD. AFTERNOON CU
WHICH DEVELOPED TODAY SHOULD DISSIPATE BY 00Z AT THE 3 TAF
LOCATIONS. WIND SHOULD DIMINISH TO AROUND 5 KTS TONIGHT AND WITH
DRIER AIR MASS NOT REALLY EXPECTING AS MUCH FOG TONIGHT...HOWEVER HAVE WENT
WITH A TEMPO MVFR CATEGORY AT BBG TOWARDS MORNING.

LINDENBERG

&&

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

$$

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