Area Forecast Discussion
Issued by NWS Omaha/Valley, NE

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000
FXUS63 KOAX 282258
AFDOAX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE OMAHA/VALLEY NE
558 PM CDT TUE OCT 28 2014

.UPDATE...
ISSUED AT 555 PM CDT TUE OCT 28 2014

SENT A QUICK UP TO THE OVERNIGHT FORECAST TO LOWER OVERNIGHT LOWS
OVER A GOOD PART OF THE FA. DRY AIR IN PLACE AND WINDS WILL BE
DIMINISHING AS THE SFC RIDGE AXIS OVER CNTRL NEB SHIFTS EWD
OVERNIGHT. THIS SHOULD ALLOW FOR LOWS IN THE MID AND UPPER 20S IN
NE NEB WITH LOWER 30S ELSEWHERE.

&&

.SHORT TERM...(TONIGHT THROUGH FRIDAY)
ISSUED AT 255 PM CDT TUE OCT 28 2014

MAIN ISSUE TO CONTEND WITH IS COLD AIR MASS ENVELOPING THE REGION
LATER THIS WEEK.

FEATURE OF INTEREST OVER THE NEXT SEVERAL DAYS IS HIGHLY ANOMALOUS
LONGWAVE TROF GRADUALLY ENVELOPING THE ERN CONUS IN RESPONSE TO
DOWNSTREAM BLOCKING OVER THE ATLANTIC. PATTERN SETTING UP WILL
ALLOW THE COLDEST AIR MASS OF THE SEASON TO PENETRATE THE LOWER 48
HEADING INTO THIS WEEKEND. BULK OF THE CAA WILL THRUST SWD THRU
THE GREAT LAKES REGION...THEN REACHING THE SERN GULF COAST STATES
ON FRIDAY. METEOGRAMS IN DECENT AGREEMENT COLD AIR MASS... 850MB
TEMPS AROUND 0C...WILL BACKDOOR INTO THE CWA SOMETIME LATE
THURSDAY EVENING. GIVEN THIS...HAVE DROPPED FRIDAY MAX TEMPS DOWN
A BIT INTO THE MID 40S. IN ADDITION...DEEP MOISTURE WILL BE
LACKING SO CHANCE OF PCPN LOOKS NIL.

.LONG TERM...(FRIDAY NIGHT THROUGH TUESDAY)
ISSUED AT 255 PM CDT TUE OCT 28 2014

THE EXTENDED PD START OFF COLD BEFORE SHORT LIVED SLY WAA REGIME
SETS UP OVER THE CNTRL PLAINS IN RESPONSE TO AN UPSTREAM RIDGE
BUILDING IN AND KICKING COLD AIR MASS EAST. EXPECT MODERATING
TEMPS THEN ON SUN WITH HIGHS REACHING THE LOW 60S.

SUNDAY NIGHT/MONDAY...PCPN CHANCES RETURN WHEN NRN STREAM ENERGY
INDUCES SFC CYCLOGENESIS OVER THE NRN HIGH PLAINS AND SHOWER
ACTIVITY DEVELOPS ALONG ATTENDANT COLD FRONT. THERMAL ADVECTION
LOOKS RATHER WEAK WITH THE BNDRY AND DO NOT EXPECT ANY DRAMATIC DROP
IN TEMPS MONDAY OR TUESDAY.

&&

.AVIATION...(00Z TAFS FOR KOFK...KLNK AND KOMA.)
ISSUED AT 555 PM CDT TUE OCT 28 2014

VFR CONDITIONS ARE EXPECTED THROUGH THE PERIOD. WINDS WILL BECOME
LIGHT THIS EVENING AND THEN BECOME SOUTHEAST BY LATE MRNG AND AFTN
ON WED AS THE SFC HIGH PUSHES OFF TO THE EAST. CLR SKIES ARE
EXPECTED THROUGH THE PERIOD.

&&

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

&&

$$

UPDATE...
SHORT TERM...DEE
LONG TERM...DEE
AVIATION...



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