FXUS63 KSGF 111120
AFDSGF
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SPRINGFIELD MO
520 AM CST FRI DEC 11 2009
...UPDATE TO AVIATION...
.DISCUSSION...
THE AREA OF SURFACE HIGH PRESSURE AND THE COLD AIRMASS THAT HAS
BEEN OVER THE AREA THE LAST COUPLE DAYS WILL CONTINUE TO PUSH OFF
TO THE EAST. SURFACE WINDS ARE SWITCHING TO THE SOUTH AS THE HIGH
ENTERS THE SOUTHEAST. WARMER TEMPERATURES WILL BEGIN TO ADVECT
INTO THE AREA TODAY...HOWEVER TEMPERATURES WILL REMAIN BELOW
AVERAGE AS HIGHS WARM INTO THE UPPER 30S TO THE LOWER 40S. BY
TOMORROW LOW TO MID 40S ARE EXPECTED. STRONGER ADVECTION WILL KICK
IN BY LATE SATURDAY INTO SUNDAY WITH HIGHS IN THE 50S POSSIBLE BY
SUNDAY.
MOISTURE WILL INCREASE SOME AS THE SOUTHERLY WINDS HELP USHER SOME
GULF MOISTURE NORTH LATE SATURDAY INTO SUNDAY...THOUGH IT WILL
NOT BE ALL THAT IMPRESSIVE. LIFT ASSOCIATED WITH WARM AIR
ADVECTION MAY MAKE SOME LIGHT RAIN AND OR DRIZZLE POSSIBLE.
TEMPERATURES ARE EXPECTED TO REMAIN ABOVE FREEZING DURING THIS
TIME AS A WARMER AIRMASS SETTLES OVER THE AREA...THEREFORE NO
FROZEN PRECIPITATION IS EXPECTED.
AN UPPER LEVEL TROUGH AND ASSOCIATED COLD FRONT WILL SWEEP ACROSS
THE REGION ON MONDAY. MOISTURE WILL BE QUITE LIMITED OVER THE
AREA...WITH THE BETTER MOISTURE REMAINING EAST OF THE AREA. SO
WOULD EXPECTED THE FRONT TO GENERALLY PASS THROUGH THE AREA DRY
WITH RAIN DEVELOPING ALONG THE FRONT EAST OF THE CWA. HAVE LEFT
SLIGHT CHANCES IN ACROSS THE FAR EASTERN CWA TO COVER THE
POTENTIAL FOR DEVELOPING RAIN. COOLER TEMPERATURES WILL FILTER
INTO THE AREA FOR THE MIDDLE OF NEXT WEEK BEHIND THE FRONT...WITH
TEMPERATURES WARMING BACK TO NEAR NORMAL FOR THE END OF NEXT WEEK.
WISE
&&
.AVIATION...
FOR THE 12Z TAF PACKAGE...VFR CONDITIONS ARE EXPECTED FOR THE NEXT
24 HOURS AND BEYOND. WILL DEAL WITH HIGH CLOUDS THROUGH THE
FORECAST WITH SOUTHERLY WINDS AT ALL SITES. WILL NEED TO KEEP AN
EYE ON LOW LEVEL WIND SHEAR POTENTIAL TONIGHT AS A MODEST LOW
LEVEL JET MOVES INTO THE AREA.
GAGAN
&&
.SGF WATCHES/WARNINGS/ADVISORIES...
MO...NONE.
KS...NONE.
&&
$$
