671 
FXUS63 KLBF 292028
AFDLBF

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORTH PLATTE NE
328 PM CDT MON OCT 29 2012

.DISCUSSION...
LOW PRESSURE ACROSS THE NRN ROCKIES WILL MIGRATE INTO THE NRN
HIGH PLAINS TONIGHT AND TUESDAY. THIS WILL PLACE THE FCST AREA IN
WEST AND NORTHWEST WINDS WITH WARMING TEMPERATURES. THE MODELS
SHOW AN AREA OF HIGH CLOUDS ACROSS THE NRN ROCKIES MOVING ACROSS
THE FCST AREA OVERNIGHT AND FORMING A WARM FRONTAL STRUCTURE
ACROSS THE MIDWEST LATE TUESDAY.

THE LOW PRESSURE SYSTEM WILL THEN MOVE INTO THE DAKOTAS WEDNESDAY.
MEANWHILE A NRN STREAM UPPER LEVEL DISTURBANCE ACROSS SRN CANADA
WILL BE DROPPING SOUTH INTO MANITOBA AND THIS APPEARS TO BE
SUPPORTING A COLD HIGH PRESSURE SYSTEM WHICH COULD AFFECT THE FCST
AREA WITH COOLER TEMPS THURSDAY. HIGHS ON WEDNESDAY SHOULD REACH
WELL INTO THE 60S AND 70S. THE TRACK AND INTENSITY OF THIS UPPER
LEVEL DISTURBANCE AS WELL AS THE HEIGHT FALLS ASSOCIATED WITH THE
EAST COAST STORM SYSTEM APPEAR TO DETERMINE THE STRENGTH AND AMOUNT
OF COLD AIR REACHING NEBRASKA. THE NAM IS VERY AGGRESSIVE WHILE THE
GFS SHOWS NO FRONT AT ALL NEAR THE FCST AREA. THE GEM...GEF AND
ECM ARE WEAKER VARIANTS OF THE NAM. SO COOLER TEMPS ARE FCST FOR
THURSDAY WITH HIGHS IN THE 60S.

FOR FRIDAY...TEMPS REACH THE LOWER 60S. HIGH PRESSURE WILL RIDGE
SOUTH INTO THE UPPER MISSOURI BASIN AND LOW PRESSURE WILL SET UP
ACROSS KS PULLING COOL AIR WESTWARD. THIS LOW PRESSURE SYSTEM THEN
BECOMES THE FOCUS FOR ISOLATED SHOWERS SATURDAY AS A CLOSED UPPER
LEVEL LOW DROPS THROUGH THE NRN ROCKIES AND INTO THE NRN PLAINS.
COOL AIR SHOULD CONTINUE TO FILL IN BEHIND THE SYSTEM SUNDAY. A
SECOND COLD FRONT MAY APPROACH THE FCST AREA NEXT MONDAY WHICH
COULD WARM TEMPS SLIGHTLY.

&&

.AVIATION...
WINDS WILL STAY LIGHT THROUGH THIS EVENING. AS A WEAK SURFACE
TROUGH PASSES ACROSS WESTERN NEBRASKA TONIGHT...WINDS WILL SHIFT
AROUND TO THE NORTHWEST AND CLOSER TO THE NORTH BY NOON ON
TUESDAY. THERE WILL BE AN INCREASE IN CLOUD COVER
OVERNIGHT...HOWEVER CEILINGS WILL BE VFR WITH CEILINGS OVER 8K FEET 
INTO TUESDAY.

&&

.LBF WATCHES/WARNINGS/ADVISORIES...NONE.
&&

$$

SHORT TERM/EXTENDED...CDC
AVIATION...BROOKS