000
FXUS63 KOAX 030904
AFDOAX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
304 AM CST TUE DEC 3 2013

.DISCUSSION...

LOOKS LIKE A COUPLE OF THINGS TO DEAL WITH IN THE FIRST PART OF
THE DAY WITH FOG SPREADING INTO SOUTHWEST IOWA AND ALSO SHOWING UP
NEAR NORTHEAST BORDER AT 08Z...THEN TIMING OF COLD AIR INTO THE
AREA THIS AFTERNOON AND TONIGHT.

SURFACE OBS SHOWING VARIABLE VSBY DUE TO FOG IN SOUTHWEST IOWA
DURING PAST HOUR...SO FOR NOW WILL STICK WITH PATCHY WORDING
THROUGH MID MORNING. TO THE NORTH THE FOG IS STILL CONFINED TO
NORTH CENTRAL NEBRASKA AND PARTS OF SOUTHWEST MINNESOTA BUT HRRR
DOES BRING SOME FOG INTO BORDER AREAS OF SOUTH DAKOTA AND
NORTHWEST IOWA AFTER 12Z SO WILL MENTION THERE ALSO.

OTHERWISE...RATHER BROAD AND DIFFUSE AREA OF LOW PRESSURE OVER
THE CENTRAL PLAINS AT 08Z WITH NEARLY ZONAL FLOW ALOFT ACROSS THE
REGION. NORTHERLY SURFACE WINDS STRETCH ACROSS NORTHERN BORDER
AREA OF NEBRASKA INTO NORTHWEST IOWA AND SOUTHWEST MINNESOTA. AS
SURFACE LOW DEVELOPS OVER EASTERN COLORADO TODAY FRONT WILL BE
SLOW TO SINK SOUTH WITH BEST SURGE OF COLD AIR WAITING UNTIL LATE
TONIGHT AND WEDNESDAY AS BOTH THE SURFACE WAVE AND UPPER WAVE KICK
OUT TOWARD THE GREAT LAKES REGION. SOME LIGHT SNOW SHOULD
EVENTUALLY DEVELOP DURING THE AFTERNOON IN NORTHERN PARTS OF
NORTHEAST NEBRASKA AS COLUMN COOLS AND THEN CONTINUE INTO TONIGHT
WITH AMOUNTS AROUND AN INCH OR SO POSSIBLE BY WEDNESDAY MORNING.
LITTLE TO NO SNOW EXPECTED TO THE SOUTH AS THE BETTER SUPPORT
SHIFTS RAPIDLY NORTHEAST.

FOR THE REMAINDER OF THE SHORT TERM AND BEYOND COLD TEMPERATURES
WILL BE THE RULE AND MAIN CONCERN WITH STRONG BAROCLINIC ZONE
DEVELOPING WELL SOUTH OF THE AREA ON THURSDAY. THE COMBINATION OF
WIND AND COLD MAY PUSH WIND CHILLS TO ADVISORY RANGE IN THE NEAR
FUTURE.

REENFORCING SURGES OF ARCTIC AIR WILL DROP INTO THE REGION DURING
THIS TIME AS A SERIES OF WAVES PIVOT AROUND BROAD UPPER
CIRCULATION OVER EASTERN CANADA. SOME CHANCE OF SNOW FOR THE AREA
OVER THE WEEKEND AS ONE OF THE UPPER WAVES DIGS AND LIFTS OUT OF
THE SOUTHERN ROCKIES. ALTHOUGH MOISTURE NOT THAT GREAT THE COLD
AIR IS DEEP ENOUGH TO SQUEEZE OUT A FEW INCHES OF FLUFFY SNOW IN
THE REGION SO SOME CHANCE POPS IN PLACE SATURDAY NIGHT INTO
SUNDAY.

&&

.AVIATION...
06Z TAFS FOR KOMA...KOFK...KLNK

BATCH OF MVFR/IFR CIGS OVER ERN SD MAY TRY AND MOV INTO NORTHEAST
NEBRASKA AND AFFECT THE OFK TAF BY 11-12Z FOR A TIME IN THE MORNING
AS THE WINDS BECOME NORTH OVERNIGHT. THESE CLOUDS ARE NOT LIKELY TO
MAKE IT INITIALLY TO KOMA/KOFK THOUGH. VFR CONDITIONS ARE GENERALLY
EXPECTED THROUGH THE LATE MORNING AND INTO THE
AFTERNOON...ESPECIALLY AT KOMA/KLNK. BY LATE MRNG A CDFNT WILL MOVE
THROUGH KOFK AND THEN THROUGH KOMA/KLNK BY 20Z. MVFR AND THEN IFR
CIGS ARE EXPECTED TO RETURN TO KOFK BY LATE AFTERNOON/EVNG. THE MVFR
DECK WILL LIKELY MOV INTO KOMA DURING THE EVENING...BUT MAY STAY E
OF KLNK. DRY CONDITIONS ARE EXPECTED THROUGH THE PERIOD.

&&

.OAX WATCHES/WARNINGS/ADVISORIES...
NE...NONE.
IA...NONE.
&&

$$

FOBERT/BOUSTEAD