FXUS63 KOAX 021658
AFDOAX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
1058 AM CST THU DEC 2 2010
.DISCUSSION...
HAVE UPDATED THE FORECAST FOR TODAY MAINLY FOR TEMPERATURE AND SKY
TRENDS. TEMPERATURES ARE POPPING UP QUITE A BIT FASTER THAN
EXPECTED AS WRLY WINDS ARE INCREASING...AND HAVE INCREASED HIGHS
FOR TODAY BY A GOOD CATEGORY OR SO...ESPECIALLY SOUTH. TWEAKED SKY
GRIDS TO SNEAK IN SOME CLOUDINESS TO THE NERN CWA BY THIS
AFTERNOON AS A PERSISTENT BAND OF LOW-LEVEL CLOUDS MAY JUST CLIP
THE AREA...THOUGH THE SRN CWA SHOULD REMAIN MAINLY CLEAR. MORE
SIGNIFICANT INCREASE IN CLOUDS SHOULD OCCUR TONIGHT AS WARM AIR
ADVECTION INCREASES.
UPDATED GRIDS/ZFP ALREADY SENT.
&&
.PREV DISCUSSION... /ISSUED 250 AM CST THU DEC 2 2010/
DISCUSSION...TODAY THROUGH SATURDAY NIGHT.
MAIN FCST ISSUES REVOLVING AROUND POSSIBLE PCPN ASSOCIATED WITH VORT
ENERGY CROSSING THE NRN STATES HEADING INTO THIS WEEKEND THEN CAA
SWEEPING SWD THRU THE REGION. MODELS IN PRETTY GOOD AGREEMENT S/W
TROF WILL MOVE ACROSS THE NRN ROCKIES FRIDAY AFTN WITH LEE-SIDE
CYCLOGENESIS RESULTING INVOF THE NEB PANHANDLE. FORCING PER
COMBINATION OF DPVA/WAA IS FOCUSED OVER THE DAKOTAS/UPPER MIDWEST
WITH SOME LIFT ALONG THE ERN PERIPHERY OF THE CWA. THUS WILL
INTRODUCE SMALL POPS FRIDAY AFTN/EVENING. APPEARS THAT PTYPE WILL
BE AN ISSUE AS WELL WITH POSSIBLE MIX OF SLEET AND SNOW...THEN
CHANGING TO ALL SNOW WHEN SURGE OF CAA DROPS DOWN INTO THE CNTRL
PLAINS. GOOD NEWS IS THAT ANY ACCUMULATIONS WILL BE ON THE LIGHT
SIDE. DRY THEN INTO SAT NIGHT WHEN CHILLY SFC HIGH QUICKLY ENVELOPS
THE THE MAJORITY OF THE CNTRL CONUS.
AVIATION...
TAF SITES KOFK/KOMA/KLNK
06Z TAFS
VFR CONDITIONS ARE EXPECTED THROUGH FRIDAY MORNING. WEAK UPPER LEVEL
SYSTEM WILL BE EXITING EASTERN NEBRASKA BY 12Z THURSDAY...TAKING
SCT-BKN MID CLOUDS WITH IT. SURFACE HIGH PRESSURE WILL BUILD INTO
THE REGION...WITH CLEAR SKIES MOST OF THE DAY. ANOTHER SYSTEM
APPROACHING FROM THE WEST WILL SPREAD BKN HIGH LEVEL CLOUDS ACROSS
EASTERN NEBRASKA AFTER 06Z FRIDAY.
&&
.OAX WATCHES/WARNINGS/ADVISORIES...
NE...NONE.
IA...NONE.
&&
$$
MAYES