FXUS64 KOHX 042024
AFDOHX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
224 PM CST FRI DEC 4 2009

.DISCUSSION...SURFACE MAP AT 20Z SHOWS RIDGE OF HIGH PRESSURE TO
OUR NORTH, WITH A 1029 MB HIGH CENTERED OVER EASTERN TEXAS, AND A
DEEP LOW DEVELOPING OVER THE GULF OF MEXICO. DESPITE THE LACK OF
LOW CLOUDS OVER MOST OF MIDDLE TENNESSEE, TEMPERATURES HAVE BEEN
SLUGGISH, AND STILL HAVE NOT REACHED 40 DEGREES IN MANY AREAS.

MODELS BRING THE GULF LOW ACROSS FLORIDA TO THE WESTERN CARIBBEAN
BY 06Z, AND OFF THE CAROLINA COAST BY 12Z. A BROAD AREA OF
OCCLUDED FRONTAL MOISTURE WILL SWING AS FAR WESTWARD AS MIDDLE
TENNESSEE, AND WILL BRING SNOW LATE TONIGHT AND TOMORROW MORNING
TO MUCH OF EASTERN MIDDLE TENNESSEE, ESPECIALLY THE CUMBERLAND
PLATEAU.

TEMPERATURES WILL SETTLE INTO THE MID AND UPPER 20'S OVERNIGHT
ACROSS THE MID STATE. THICKNESSES AT 00Z THIS EVENING WILL ALREADY
BE BELOW THRESHOLDS NECESSARY FOR SNOW AT BOTH 1000-850 MB AND
1000-500 MB, WILL DROP EVEN LOWER BY 12Z, AND WILL REMAIN BELOW
1300M/5400M EVEN AT 18Z, SO AM CONFIDENCE PRECIPITATION WILL FALL
AS SNOW.

ACCUMULATIONS WILL RANGE FROM A TRACE AT NASHVILLE TO 2-3 INCHES
IN PARTS OF CUMBERLAND AND FENTRESS COUNTIES. WILL THEREFORE
EXTEND THE SNOW ADVISORY FOR THE PLATEAU UNTIL 18Z TOMORROW.

AFTERWARD, LOOK FOR A GENERALLY COOL WEEK AHEAD. THE NEXT BIG
WEATHER SYSTEM WILL COME THROUGH TUESDAY AND TUESDAY NIGHT, BUT IT
SHOULD BE JUST RAIN.

&&

.PRELIMINARY POINT TEMPS/POPS...
NASHVILLE      29  42  24  50 /  50  30  10  10 
CLARKSVILLE    26  43  22  48 /  20   0  10  10 
CROSSVILLE     28  34  19  45 /  70  60  10  10 
COLUMBIA       29  42  24  50 /  50  30  10  10 
LAWRENCEBURG   29  43  23  50 /  50  30  10  10 
WAVERLY        28  43  23  49 /  20   0  10  10 

&&

.OHX WATCHES/WARNINGS/ADVISORIES...
WINTER WEATHER ADVISORY FROM MIDNIGHT TONIGHT TO NOON CST 
SATURDAY FOR TNZ011-032>034-065-066-078>080.

&&

$$

ROSE