FXUS63 KOAX 140757
AFDOAX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
257 AM CDT THU OCT 14 2010
.DISCUSSION...TODAY THROUGH SUNDAY.
MORNING SATL PIX/UAA SHOWING UPPER LEVEL HIGH PRESSURE CENTERED OVER
THE SWRN U.S. WITH AN AMPLIFIED RIDGE EXTENDING WELL INTO WRN CANADA.
AREA OF CIRRUS OVER ERN MT/WRN DAKOTAS/WRN NEB ASSOCIATED WITH PAC
MOIST DROPPING DOWN FRONT SIDE OF WRN RIDGE. MEANWHILE WEAK SFC TROF
EXTENDED THRU THE DAKOTAS TO AREA OF LOW PRESSURE IN MANITOBA. REVIEW
OF MODELS INDICATE GOOD AGREEMENT LARGE SCALE FLOW WILL FLATTEN OUT
THE WRN RIDGE AND GRADUALLY TRANSITION TO ZONAL FLOW OVER MOST OF THE
CONUS BY SUNDAY. IN THE MEANTIME...SHORTWAVES MIGRATING WITHIN
WESTERLIES WILL SHOVE A COUPLE COLD FRONTS INTO THE NRN TIER
STATES...FIRST OF WHICH PROGGED THIS AFTN. CAA IS RELATIVELY WEAK
WITH MODELS AGREEING IT WILL BE MORE OF AN INFLUENCE OVER THE UPPER
MIDWEST/GREAT LAKES REGION. MET HIGHS THIS AFTN SLIGHTLY WARMER THAN
MAV WITH U70S/L80S GENERALLY OVER THE SW CWA. GIVEN BACKDOOR CAA
IS WEAK AND NIL CLOUDS EXPECTED...MET MAY NOT BE TOO FAR OFF.
THUS WILL LEAN MORE TWD MET TODAY. SECOND BNDRY OF INTEREST SWEEPS
INTO THE CNTRL PLAINS SATURDAY AFTN. FOR NOW HAVE ABOUT 15 DEG
SPREAD FOR HIGHS(M60S NORTH/NEAR 80 SOUTH)...THUS BIG POTENTIAL FOR
BUSTED FCST. OTHERWISE...NIL MOISTURE TO WORK WITH FROPAS...THUS
WILL CONTINUE DRY FCST.
&&
.AVIATION...
06Z TAFS
A COLD FRONT WILL BRING A WIND SHIFT TO THE TAF SITES LATER TODAY.
VFR CONDITIONS WILL PREVAIL...WITH JUST SOME VARIABLE AMOUNTS OF
HIGH LEVEL CLOUDS.
&&
.OAX WATCHES/WARNINGS/ADVISORIES...
NE...NONE.
IA...NONE.
&&
$$
DEE/MILLER