FXUS64 KOHX 261154
AFDOHX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
554 AM CST THU NOV 26 2009

.UPDATE...FOR 12Z TAFS AND AVIATION DISCUSSION

&&

.AVIATION...FEW CIRRUS AT 11Z OTHERWISE CKEAR SKIES ACROSS THE
MIDSTATE. CIRCULATION AROUND THE TROF NEAR LAKE MICHIGAN WILL SEND
A COLD FRONT INTO THE REGION LATER THIS MORNING. NW BREEZES AND
INCREASING CLOUDS SHOULD COMMENCE AROUND 16Z AT KBNA AND 1 TO 2
HOURS LATER AT KCSV. EXPECT BKN SKIES MUCH OF THE AFTERNOON THEN
BKN TO OVC MOST OF THE NIGHT WITH SOME IMPROVEMENT POSSIBLE BEFORE
12Z FRIDAY. LV

&&

.PREV DISCUSSION... /ISSUED 317 AM CST THU NOV 26 2009/ 

DISCUSSION...SURFACE MAP AT 08Z SHOWS WEAK HIGH PRESSURE
RETREATING TO THE EAST WITH A COLD FRONT APPROACHING FROM THE
NORTHWEST. EXPECT CLOUDS TO SPREAD ACROSS THE MID STATE TODAY AS
THE FRONT COMES THROUGH, WITH A SLIGHT CHANCE OF SHOWERS ACROSS
OUR NORTH, ALTHOUGH THE DEEPEST MOISTURE WILL REMAIN NORTH OF
MIDDLE TENNESSEE.

LOOK FOR SIGNIFICANTLY COLDER AIR TO FILTER IN BEHIND THE FRONT,
WITH FREEZING TEMPERATURES POSSIBLE BOTH TONIGHT AND FRIDAY NIGHT
BEFORE TEMPERATURES START TO WARM BACK UP DURING THE WEEKEND.

THE NEXT ACTIVE WEATHER SYSTEM WILL COME TOGETHER TO OUR WEST
DURING THE WEEKEND AS AN 850 MB SHORTWAVE DEEPENS AND DEEP
MOISTURE FILLS IN. THUS, SUNDAY NIGHT AND MONDAY MAY BE ESPECIALLY
WET AS THIS SYSTEM PUSHES THROUGH.

FOLLOWING A BRIEF SHOT OF HIGH PRESSURE ON TUESDAY, A GULF LOW IS
EXPECTED TO DEVELOP AND MOVE NORTHWARD INTO MIDDLE TENNESSEE BY
WEDNESDAY.

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
FREEZE WATCH FROM LATE TONIGHT THROUGH FRIDAY MORNING FOR 
TNZ005>009-022>030-056>064-075-077-093>095.

&&

$$

ROSE/LV