Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

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000
FXUS63 KOAX 262320
AFDOAX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
520 PM CST THU FEB 26 2015

.SHORT TERM...(TONIGHT THROUGH SUNDAY)
ISSUED AT 224 PM CST THU FEB 26 2015

HIGH PRESSURE SHIFTS ACROSS THE MISSOURI VALLEY OVERNIGHT. CU
FIELD THAT HAS DEVELOPED OVER THE MINIMAL SNOW COVER WILL
DISSIPATE WITH SUNSET. WINDS WILL ALSO DIMINISH...WHICH WILL ALLOW
TEMPS TO PLUMMET TONIGHT TO THE SINGLE DIGITS BELOW ZERO. WIND
CHILL VALUES COULD RANGE FROM 10 TO 15 BELOW AT TIMES...BUT NOT
COLD ENOUGH FOR AN ADVISORY.

HIGH PRESSURE SHIFTS EAST OF THE REGION FRIDAY WITH A WEAK RETURN
SOUTHEASTERLY FLOW DEVELOPING. STILL WILL BE COLD WITH HIGHS IN
THE TEENS BUT DRY.

A WEAK PIECE OF ENERGY WILL EJECT FROM THE SOUTHERN STREAM AND
BEGIN TO EJECT ONTO THE PLAINS SATURDAY. STILL THINKING WE`LL SEE
LIGHT SNOW DEVELOP SATURDAY THROUGH THE DAY AND LINGER THROUGH
SUNDAY. BEST CHANCES STILL APPEAR TO BE ALONG/SOUTH OF I80 WITH
POPS DIMINISHING AS YOU HEAD NORTH TOWARD THE NE/SD BORDER
REGION...IN FACT THE NORTHERN EDGE MAY NOT EVEN MAKE IT THAT FAR
NORTH. WINDS ARE NOT IMPRESSIVELY STRONG WITH THIS EVENT EITHER.
SNOWFALL TOTALS ARE ON THE LIGHT SIDE...WITH LESS THAN AN INCH IN
NORTHEAST NEBRASKA...A COUPLE OF INCHES ALONG I80...AND 2 TO 4
INCHES IN SOUTHEAST NE/SOUTHWEST IA. SNOW TAPERS OFF AND ENDS BY
SUNDAY AFTERNOON.

.LONG TERM...(SUNDAY NIGHT THROUGH THURSDAY)
ISSUED AT 224 PM CST THU FEB 26 2015

TIMING OF THE NEXT PIECE OF ENERGY IS IN QUESTION WITH THE GFS
BRINGING IN THE NEXT WAVE MONDAY...BUT THE ECMWF HOLDS OFF TILL
MONDAY NIGHT. THERE WILL ALSO BE SUBSTANTIAL MID LEVEL WARM AIR
ADVECTION WITH THIS NEXT SYSTEM THAT COULD RESULT IN MIXED WINTRY
PRECIPITATION MONDAY NIGHT INTO TUESDAY...PRIMARILY ALONG/SOUTH OF
I80. MODELS ALSO DIFFER ON THE STRENGTH OF THE CYCLOGENESIS AND
THE OVERALL TIMING WITH THE ARRIVAL OF THE NEXT ARCTIC PUSH
BEHIND THE SYSTEM. THUS...SIGNIFICANT UNCERTAINTY EXISTS ON THE
MONDAY THROUGH WEDNESDAY TIME FRAME WITH EXACT DETAILS AND TIMING
OF PRECIP...PRECIP TYPE...AND TRANSITION BACK TO COLD CANADIAN AIR.

&&

.AVIATION...(00Z TAFS FOR KOFK...KLNK AND KOMA.)
ISSUED AT 520 PM CST THU FEB 26 2015

CLOUDS SHOULD DECREASE THIS EVENING WITH VFR CONDITIONS THE REST
OF THE PERIOD. NORTH WINDS WILL SLOWLY DIMINISH THEN BECOME
SOUTHEAST OR SOUTH ON FRIDAY.

&&

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

$$

SHORT TERM...DEWALD
LONG TERM...DEWALD
AVIATION...MILLER



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