Potential Exists for Measurable Snow For Christmas

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE NASHVILLE TN
1054 AM CST TUE DEC 21 2010

TNZ005>011-022>034-056>066-075-077>080-093>095-221600-
STEWART-MONTGOMERY-ROBERTSON-SUMNER-MACON-CLAY-PICKETT-BENTON-
HOUSTON-HUMPHREYS-DICKSON-CHEATHAM-DAVIDSON-WILSON-TROUSDALE-
SMITH-JACKSON-PUTNAM-OVERTON-FENTRESS-PERRY-HICKMAN-LEWIS-
WILLIAMSON-MAURY-MARSHALL-RUTHERFORD-CANNON-DE KALB-WHITE-
CUMBERLAND-BEDFORD-COFFEE-WARREN-GRUNDY-VAN BUREN-WAYNE-LAWRENCE-
GILES-
INCLUDING THE CITIES OF...DOVER...CLARKSVILLE...SPRINGFIELD...
GALLATIN...LAFAYETTE...CELINA...BYRDSTOWN...CAMDEN...ERIN...
WAVERLY...DICKSON...ASHLAND CITY...NASHVILLE...LEBANON...
MOUNT JULIET...HARTSVILLE...CARTHAGE...GAINESBORO...COOKEVILLE...
LIVINGSTON...JAMESTOWN...LOBELVILLE...CENTERVILLE...HOHENWALD...
FRANKLIN...BRENTWOOD...COLUMBIA...LEWISBURG...MURFREESBORO...
WOODBURY...SMITHVILLE...SPARTA...CROSSVILLE...SHELBYVILLE...
TULLAHOMA...MANCHESTER...MCMINNVILLE...ALTAMONT...SPENCER...
WAYNESBORO...LAWRENCEBURG...PULASKI
1054 AM CST TUE DEC 21 2010

...POTENTIAL EXISTS FOR FIRST MEASURABLE SNOWFALL ON CHRISTMAS IN
17 YEARS...


THERE HAVE BEEN ONLY NINE CHRISTMASES WITH MEASURABLE AMOUNTS OF
SNOW SINCE SNOWFALL RECORD KEEPING BEGAN IN NASHVILLE BACK IN THE
WINTER OF 1884 AND 1885. THE LAST TIME MEASURABLE SNOW FELL ON
CHRISTMAS DAY IN NASHVILLE WAS IN 1993 WHEN THREE TENTHS OF AN
INCH WAS MEASURED. TRACE AMOUNTS OF SNOW FELL ON CHRISTMAS IN
2002. STATISTICALLY THERE IS ONLY A 7 PERCENT CHANCE OF MEASURABLE
SNOW ON ANY GIVEN CHRISTMAS. THE MOST SNOW EVER TO FALL ON
CHRISTMAS IN NASHVILLE IS 2.7 INCHES IN 1969.

A MAJOR STORM SYSTEM IS CURRENTLY OVER THE SOUTHWESTERN UNITED STATES
AND WILL MOVE ACROSS THE SOUTHERN ROCKIES ON THURSDAY AND INTO THE
SOUTHERN PLAINS THURSDAY NIGHT. DURING THE DAY FRIDAY THE SYSTEM
WILL MOVE FROM EAST TEXAS INTO LOUISIANA...SPREADING WINTRY PRECIPITATION
ACROSS THE MIDDLE MISSISSIPPI VALLEY WITH RAIN ACROSS THE LOWER
MISSISSIPPI VALLEY. AS THE SURFACE SYSTEM MOVES NORTHEAST INTO
ALABAMA AND NORTH GEORGIA CHRISTMAS EVE NIGHT...COLDER AIR GETS
DRAWN IN BEHIND THE SURFACE SYSTEM...WITH SNOW IS EXPECTED TO
DEVELOP ACROSS MIDDLE TENNESSEE CHRISTMAS EVE AND CONTINUE INTO
CHRISTMAS DAY. CLIMATOLOGICALLY...THIS IS A FAVORED TRACK FOR SNOW
IN MIDDLE TENNESSEE...BUT SINCE THIS EVENT IS SEVERAL DAYS
AWAY...UNCERTAINITY STILL REMAINS IN THE EVENTUAL TRACK OF THE
STORM SYSTEM AND SNOW AMOUNTS.



$$
BOYD


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