FXUS63 KOAX 120849
AFDOAX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
249 AM CST SUN DEC 12 2010
.DISCUSSION...
WINTER STORM/BLIZZARD WINDING DOWN QUICKLY ACROSS CWA THIS MORNING
AS CLOSED UPPER LOW WAS CROSSING MS RIVER NEAR STL PER EARLY MORNING
WATER VAPOR STLT. WINDS WERE DROPPING OFF SOME...SPCLY WRN
CWA...AND SOME BLOWING SNOW WILL LIKELY PERSIST THIS MORNING ERN
HOWEVER...VSBYS WERE GENERALLY NOT TOO BAD AND WL LET BLIZZARD
WARNING EXPIRE AT 400 AM FOR WRN IA. STRONG WINDS AND TEMPS NEAR
ZERO HAS ALLOWED WIND CHILL VALUES TO REACH CRITERIA LEVELS NRN
ZONES AS OF 08Z...BUT VALUES WERE A BIT MORE MARGINAL SOUTH SINCE
TEMPS HAVEN/T DROPPED QUITE ENOUGH S AS OF 08Z. HOWEVER...WL
CONTINUE WIND CHILL HEADLINES THIS MORNING ALL ZONES PER PREV FCST
SINCE IT WAS CLOSE ENOUGH. WITH NEW SNOW AND CONTD COLD ADVCTN INTO
MIDDAY TEMPS WL BE SLOW TO RECOVER N/NERN ZONES AND TRIMMED BACK
SOME. LOOKS LIKE SNOWFALL WAS ENOUGH TO IMPACT TEMPS NE OF A BVN-
OLU-LNK LINE. OTHERWISE SFC RIDGE BUILDING DOWN MO RIVER LATER
TDA/TNGT WL BRING A CONTINUED DECREASE IN WINDS AND RACE WILL BE
ON TNGT BETWEEN WARM ADVCTN CLOUDINESS AND THE PROVERBIAL CLIFF
TEMPERATURES LIKE TO FALL OFF OF WITH FRESH SNOW...ARCTIC AIR AND
LIGHT WINDS. BASED ON ECMWF LOW DWPTS FORECAST AND 00Z NAM 2M TEMP
DEPICTION WENT WITH LOWS ON THE COLD SIDE OF THE COLDER NAM
GUIDANCE BUT ADJUSTED FOR NON-DIURNAL TRENDS...SPCLY NWRN ZONES
WHERE A HIGHER CHC OF CLOUDS EXIST. KEPT IN SMALL SNOW POPS NRN
ZONES MONDAY WHERE SOUNDINGS MOISTENED A BIT MORE IN LOWER LVLS
COMPARED TO LOCATIONS FARTHER S. WITH INCREASED CLOUDS INTO AFTN
...AFOREMENTIONED SNOW COVER...AND WARM ADVCTN FAIRLY
MODEST...KEPT AFTN MAX TEMPS IN RANGE OF COOLER NAM GUIDANCE.
ALSO CONTINUED TEMPS GENERALLY ON THE COOLER SIDE OF GUIDANCE INTO
TUE...SPCLY NE OF THAT BVN-OLU-LNK LINE...AS WARM ADVCTN/MIXING
STILL NOT VERY FAVORABLE FOR WARMING. WEDNESDAY BECOMES MORE
INTERESTING BOTH WITH RESPECT TO POSSIBLE WARMING AND WITH
APPROACHING UPPER TROUGH/LOW. ATTM NO SIGNIFICANT CHANGES TO WED
AND IT WAS LEFT DRY...BUT THIS PD COULD NEED FURTHER ADJUSTMENTS
LATER.
&&
.AVIATION...
TAF SITES KOFK/KOMA/KLNK
06Z TAFS
VFR CONDITIONS EXPECTED THRU TAF PD AS STRONG STORM SYSTEM CONTINUES
TO MOVE OUT OF THE REGION. WINDS WILL CONTINUE TO DIMINISH THRU THE
DAY AS WELL AND BECOME LIGHT AND VARIABLE OVERNIGHT.
&&
.OAX WATCHES/WARNINGS/ADVISORIES...
NE...WIND CHILL ADVISORY UNTIL 9 AM CST THIS MORNING FOR NEZ030-042-
043-050-065-066-078-088>093.
WIND CHILL ADVISORY UNTIL NOON CST TODAY FOR NEZ011-012-015>018-
031>034-044-045-051>053-067-068.
IA...WIND CHILL ADVISORY UNTIL NOON CST TODAY FOR IAZ043-055-056-069-
079-080-090-091.
BLIZZARD WARNING UNTIL 4 AM CST EARLY THIS MORNING FOR IAZ043-
055-056-069-079-080-090-091.
&&
$$
CHERMOK/KERN