FXUS64 KOHX 092126
AFDOHX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
326 PM CST WED DEC 9 2009

.DISCUSSION...
SFC LOW OVER MI WILL CONTINUE TO MOVE EASTWARD AS THE ARCTIC OVER 
THE CENTRAL PLAINS MOVES OUR WAY. GRADIENT TO BEGIN DECREASING THIS 
AFTERNOON AND INTO THIS EVENING. SFC HIGH WILL BE NEAR THE ARKLATEX 
BY 12Z THU SO LOOK FOR THE WEST AND NORTHWEST WINDS TO CONTINUE IN 
THE 10-15 MPH RANGE WITH GOOD CAA CONTINUING.

SAT IMAGERY SHOWING THAT THE LOW CLOUDINESS WITHIN THE POST FRONTAL 
SECTOR IS RATHER EXTENSIVE. BUT...GIVEN THE NORTHERLY TRACK OF THE 
UPPER LOW...THESE LOW CLOUDS WILL STAY WELL NORTH OF TN. 

SFC HIGH WILL MOVE OVER MIDDLE TN ON THU AFTERNOON. 850 MB TEMPS 
WILL REMAIN IN THE -6C TO -12C RANGE SO HIGH TEMPS WILL STRUGGLE TO 
REACH THE UPPER 30S NORTH AND LOWER 40S SOUTH. 

BY 12 FRI...SFC HIGH IS OVER EAST TN. THIS WILL SET THE STAGE FOR 
THE COLDEST NIGHT THUS FAR ON THU NT. WILL GO BELOW THE MAV GUIDANCE 
AND INCLUDE MIN TEMPS GENERALLY IN THE 15 TO 22 DEGREE RANGE. EVEN 
COLDER READINGS WILL BE POSSIBLE FOR LOW LYING AREAS.

A WARMING TREND WILL BEGIN ON FRIDAY AFTERNOON AND INTO THE 
WEEKEND.

IN THE EXT FCST...GULF LOW TO DEVELOP AND SPREAD MOISTURE AND A 
CHANCE OF RAIN TO THE NORTH ON SATURDAY.    

ANOTHER FRONTAL SYSTEM WILL MOVE THROUGH ON TUESDAY WITH A CHANCE OF 
SHOWERS ALONG AND IN ADVANCE OF THAT SYSTEM. COLDER AIR WILL WORK IN 
BEHIND THAT SYSTEM AS A 1043 MB HIGH BUILDS SE FROM CANADA. EURO 
SOLUTION IN AGREEMENT WITH BRINGING A COLD AIRMASS SOUTHWARD TOWARD 
THE LAST HALF OF NEXT WEEK.

.PRELIMINARY POINT TEMPS/POPS...
NASHVILLE      25  35  21  41 /   0   0   0   0 
CLARKSVILLE    22  33  17  40 /   0   0   0   0 
CROSSVILLE     22  32  16  40 /   0   0   0   0 
COLUMBIA       26  37  21  42 /   0   0   0   0 
LAWRENCEBURG   26  38  20  43 /   0   0   0   0 
WAVERLY        24  35  18  41 /   0   0   0   0 

&&

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

$$

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