000
FXUS63 KLBF 201001 CCA
AFDLBF
AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE NORTH PLATTE NE
400 AM CST THU NOV 20 2008
.DISCUSSION...
SMALL PRECIP CHANCES AND COLD TEMPS TODAY...THEN NEXT QUICK MOVING
SYSTEM TOMORROW TO BE THE MAIN FOCUS IN THE FORECAST.
ARCTIC SURFACE HIGH PRESSURE DIVING SOUTH OUT OF CENTRAL CANADA
TODAY. STRONG COLD AIR ADVECTION EXPECTED THROUGH THE DAY AND WILL
KEEP TEMPS CONSIDERABLE COOLER THAN YESTERDAY. AS RIDGE GETS
SUPPRESSED SOUTHWARD...PACIFIC MOISTURE WILL RIDE THE NORTHERN
FRINGE OF THE RIDGE AND ACROSS THE STATE. BOUNDARY LAYER MOISTURE
IS DECENT WITH LOW STRATUS REPORTED ACROSS THE AREA...ALTHOUGH
MOISTURE IS NOT UNIFORM AS POCKETS OF REPORTING STATIONS HAVE
CEILINGS ABOVE 5K FT.
MODEL SOUNDINGS AND BUFKIT ANALYSIS HAVE A MID LEVEL DRY LAYER
DEVELOPING ACROSS THE REGION EARLY THIS MORNING...MAINLY ACROSS
THE PANHANDLE. WITH DRY MID LEVEL AND WEAK FRONTO LIFT IN
BL...BRIEF PERIOD OF FREEZING DRIZZLE EARLY THIS MORNING /NEXT
COUPLE OF HOURS/ TO BE POSSIBLE. FURTHER EAST A LITTLE DRY AIR NOT
AS PRONOUNCED AND WILL GO WITH FLURRIES AND KEEP AN EYE ON IT.
EITHER WAY PRECIP EXPECTED TO BE VERY LIGHT AND BE ENDING DURING
THE MORNING HOURS.
DURING THE AFTERNOON CONTINUED PUSH OF DRY AIR WITH HIGH PRESSURE
AND AHEAD OF NEXT IMPULSE TO DECREASE CLOUDS INTO THE OVERNIGHT
HOURS. WHILE THE CENTER OF THE SURFACE HIGH WILL BE TO THE EAST OF
THE CWA...STILL GOING TO BE A CHILLY NIGHT...ESPECIALLY WHERE
SKIES GO MOSTLY CLEAR. QUESTION AS TO IF ATMOSPHERE WILL
COMPLETELY DECOUPLE. MODEL GUIDANCE KEEPS WINDS UP AND WILL GO THE
MIDDLE OF THE GROUND FOR LOWS TO ACCOUNT FOR SOME MIXING. IF WINDS
GO CALM SOME SINGLE DIGITS WILL BE POSSIBLE.
THE NEXT WAVE WILL RIDE ACROSS THE DAKOTA TOMORROW WITH A SMALL
CHANCE FOR PRECIP ALONG THE BORDER. BEST LIFT REMAINS NORTH OF THE
BORDER...ALTHOUGH WILL KEEP SMALL CHANCE POPS FOR NORTHERN ZONES.
RIDGE REDEVELOPS TO THE WEST AND EXPANDS ACROSS THE ROCKIES TO
BEGIN THE WEEK. THIS WILL LEAD TO A DRY AND WARMING TREND.
FORECAST HANDLING THIS WELL.
&&
.AVIATION...
MVFR CONDITIONS THROUGH THE MORNING AT BOTH KVTN AND KLBF DUE TO
CEILINGS. VFR CONDITIONS AFTER 18Z BOTH SITES WITH CIRRUS ROUNDING
THE RIDGE IN NORTHWEST FLOW.
&&
.LBF WATCHES/WARNINGS/ADVISORIES...NONE.
&&
$$
SHORT TERM/EXTENDED...POWER
AVIATION...MASEK
