Expires:No;;222248
FXUS64 KOHX 250341
AFDOHX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
941 PM CST TUE NOV 24 2009
.UPDATE...
BAND OF SHOWERS CONTINUING TO WORK SLOWLY EASTWARD ACROSS MIDDLE TN
WHILE DIMINISHING IN COVERAGE. AT 0330Z BACK EDGE INTO WESTERN
CHEATHAM COUNTY AND DOWN INTO LAWRENCE COUNTY. COLD FRONT RIGHT IN
BEHIND SHOWERS SO DONT EXPECT ANYTHING TO DEVELOP WEST OF CURRENT
SHOWER AREA. NOT MUCH PRECIP FALLING WITH THIS FEATURE WITH ONLY A
LITTLE OVER A TENTH OF AN INCH FALLING AT CLARKSVILLE DURING THE
EARLY EVENING. HAVE UPDATED GRIDS/ZONES TO REFLECT CURRENT
MOVEMENT OF SHOWER AREA THROUGH MID STATE OVERNIGHT. SHOWERS NOT
GETTING MUCH SUPPORT IN STABLE ENVIRONMENT. NO OTHER CHANGES MADE.
BOYD
&&
.PREV DISCUSSION... /ISSUED 716 PM CST TUE NOV 24 2009/ 
UPDATE...
RADAR TRENDS SHOW SHOWERS ON THE INCREASE IN COVERAGE ACROSS
WESTERN MIDDLE TENNESSEE SO HAVE UPDATED GRIDS/ZFP AND HAVE BUMPED
POPS UP FOR TONIGHT ACROSS THE BOARD. DONT SEE A GREAT SURGE IN
MOISTURE WITH THIS SYSTEM LOOKING AT WATER VAPOR OFF SATELLITE AND
00Z RAOB (PRECIPITABLE WATER AT 0.68 INCHES)BUT FRONTAL SYSTEMS
HAVE A WAY OF PULLING MOISTURE IN...SOMETIMES RATHER QUICKLY.
LIGHT SHOWERS ALREADY WORKING INTO WESTERN WILLIAMSON COUNTY WITH
MAIN BAND BACK ACROSS STEWART AND MONTGOMERY SOUTHWARD TO PERRY
COUNTY. THIS BAND OF SHOWERS WILL SPREAD EASTWARD THROUGH THE
EVENING. DONT EXPECT THUNDER FROM THIS ACTIVITY AS IT PROGRESSES
THROUGH THE MID STATE AS AIRMASS WILL REMAIN TOO STABLE.
BOYD
PREV DISCUSSION... /ISSUED 342 PM CST TUE NOV 24 2009/ 
SHORT TERM (THROUGH FRI)... 
COLD FRONT GETTING CLOSE TO THE MS RVR ATTM. EXPECT FRONTAL SYSTEM
TO PUSH INTO MID TN THIS EVENING...WITH A FEW SHOWERS W OF I-65 BY
MID EVENING. DON'T SEE A SURGE IN MOISTURE FM THE SOUTH...AND WL
KEEP POPS 20-30 RANGE OVERNIGHT.
COOLER NOT COLDER WED. A GOOD BIT OF SUN SHOULD DRIVE TEMPS INTO
THE MID TO UPR 50S WED AFTERNOON...MAYBE NEAR 60 SOUTH. SECONDARY
COLD FRONT EXPECTED TO PLUNGE SOUTH INTO MID TN LATE WED NIGHT-THU
MORNING...BRINGING MUCH COLDER TEMPS.
H8 TEMPS AROUND -2 TO -4 C THU WITH LINGERING MOISTURE AND ISO
RW- IN THE NORTH. THANKSGIVING DAY HIGHS ARE EXPECTED TO REMAIN
IN THE MID TO UPR 40S ALONG AND NORTH OF I-40. 
MODELS COLD ENOF FOR A FEW SNOW SHOWERS/FLURRIES NORTH AND EAST OF
NASHVILLE THU EVENING. OTHERWISE A COUPLE OF COLD DRY NIGHTS THU-
FRI.
LONG TERM (SAT-TUE)...
TEMP MODERATION THIS WEEKEND. NEXT CHANCE OF PCPN MON WITH NEXT
FROPA. COLDER H8 AIR COULD GENERATE SOME LIGHT SNOW SHOWERS/FLURRIES
MON NIGHT AT THIS POINT.
&&
.OHX WATCHES/WARNINGS/ADVISORIES...
NONE.
&&
$$