FXUS64 KOHX 260100
AFDOHX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
700 PM CST FRI DEC 25 2009

.UPDATE...
CLOUDS ARE CLEARING RAPIDLY FROM THE SW. WILL UPDATE TO REFLECT THIS.
&&

MAG

.PREV DISCUSSION... /ISSUED 528 PM CST FRI DEC 25 2009/ 

UPDATE...

AVIATION...
LOW CLOUDS BEGINNING TO LIFT AT BNA AND WILL BEGIN AT CSV SHORTLY.
EXPECT SCATTERED STRATOCU AT BNA BY 01Z AND SHOULD SCATTER OUT AT
CSV BY 05Z. NO FOG ISSUES TONIGHT AS WINDS WILL STAY UP PLUS TEMP
DEWPOINT SPREAD IS QUITE LARGE. CRAS FORECAST MAY BE TRYING TO CLEAR
A LITTLE TOO FAST ACROSS THE AREA THIS EVENING SO BASICALLY USED
EXTRAPOLATION WITH WX DEPICTION CHARTS.

BOYD

PREV DISCUSSION... /ISSUED 322 PM CST FRI DEC 25 2009/ 
SCATTERED FLURRIES WORKING THERE WAY EASTWARD ACROSS THE MID STATE 
THIS AFTERNOON. SAT IMAGERY DOES SHOW CLEARING BACK ACROSS AR AND 
MS. OVERALL TREND IS FOR THAT CLEARING AREA TO EXPAND OUR WAY 
OVERNIGHT AS THE COLDER AIRMASS SETTLES IN. 

DEW POINTS ARE NOT TOO TERRIBLY LOW UPSTREAM AND THE POLAR SFC HIGH 
IS STILL LOCATED WELL TO OUR NORTH. THUS...LOOK FOR WEST/SW WINDS TO 
CONTINUE OVERNIGHT WITH TEMPS FALLING TO A FEW DEGREE BELOW FREEZING 
BY 12Z SAT FOR MOST AREAS. 

PARTLY CLOUDY SKIES TO RETURN FOR SAT AND SAT NT. 850 MB TEMPS WILL 
BE QUITE LOW SO I WILL LEAN TOWARD THE COLDER MET NUMBERS FOR HIGH 
TEMPS SAT AND SUN. 

ON SUNDAY NT...A WEAK DISTURBANCE WILL MOVE ACROSS THE AREA. THIS 
COULD PRODUCE A FEW FLURRIES OR PERHAPS A LIGHT SNOW SHOWER SUNDAY 
NIGHT ACROSS NORTHERN ZONES AND THE PLATEAU. 

IN THE EXTENDED FCST...A SERIES OF WEAK SFC LOWS WILL DEVELOP ACROSS 
THE WESTERN GULF TUES THROUGH THU. THESE FEATURES WILL MOVE EAST AND 
ATTEMPT TO SPREAD MOISTURE NORTHWARD TOWARD TN. COLDER AIR WILL 
ARRIVE LATE IN THE WEEK SO WILL INCLUDE A SNOW RAIN MIX AS WE MOVE 
INTO THU AND FRI.

OVERALL...TEMPS LOOK TO BE ON THE COOL SIDE...PARTICULARLY DAYTIME 
MAX TEMPS.

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&

$$

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