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Area Forecast Discussion

978
FXUS64 KOHX 190929
AFDOHX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
329 AM CST FRI DEC 19 2014

.DISCUSSION...CHILLY HIGH PRESSURE WAS CENTERED OVER THE GREAT
LAKES REGION AND EXTENDED DOWN INTO TN THIS MORNING. SKIES WERE
MAINLY CLOUDY AND TEMPERATURES WERE IN THE 30S. THERE WERE BREAKS
IN THE CLOUDS OVER OUR EASTERN COUNTIES...AND LOW CLOUDS ELSEWHERE
MAY BREAK UP SOME THROUGH THIS MORNING. HOWEVER...MORE CLOUDS WILL
BE MOVING IN TODAY AHEAD OF THE NEXT WEATHER SYSTEM FROM THE
SOUTHERN PLAINS. HIGHS WILL BE A LITTLE WARMER THAN
YESTERDAY...BUT STILL IN THE UNREMARKABLE 40S.

THE PLAINS SYSTEM WILL LIFT NORTHEAST...BRINGING LIGHT
PRECIPITATION TO THE AREA TONIGHT INTO SATURDAY MORNING. FORECAST
SOUNDINGS ARE FRUSTRATINGLY BORDERLINE FOR PRECIP
TYPE...ESPECIALLY ACROSS THE NORTH HALF. MUCH LIKE YESTERDAY/S
PRECIPITATION...WE EXPECT A MIX OF LIGHT RAIN...SLEET AND FREEZING
RAIN WITH SOME SNOWFLAKES. ALSO LIKE YESTERDAY...WE EXPECT LOW
IMPACTS...WITH LOW QPF ACROSS THE NORTH. NO ACCUMULATIONS WILL BE
IN THE FORECAST. OF COURSE...IT ONLY TAKES A SMALL AMOUNT OF
FREEZING RAIN TO PRODUCE SOME ICY SPOTS ON BRIDGES...SO WE WILL
ISSUE A SPECIAL WEATHER STATEMENT TO HIGHLIGHT THIS POSSIBILITY.

CONDITIONS LOOK DRY FOR SATURDAY PM THROUGH SUNDAY. SUNDAY MAY
BRING SOME WELCOME SUNSHINE WITH HIGHS EDGING A DEGREE OR 2 ABOVE
NORMAL.

BY MONDAY...ANOTHER SYSTEM WILL BE LIFTING ACROSS THE SOUTHEAST
STATES. SOME OF THE MOISTURE WILL SPREAD BACK INTO TN...BRINGING
A RETURN TO MOSTLY CLOUDY SKIES AND AT LEAST A LOW CHANCE FOR
RAIN.

THE EXTENDED FORECAST CONTINUES TO LOOK UNSETTLED. A STRONG JET
STREAM WILL BRING A SERIES OF WAVES FROM THE PACIFIC NORTHWEST
INTO A DEEPENING TROUGH OVER THE EASTERN STATES. THE FIRST WAVE
WILL BRING A GOOD CHANCE OF RAIN...AND POSSIBLY SOME THUNDER...BY
TUESDAY.

BY CHRISTMAS EVE...A STRONG STORM SYSTEM WILL BE DEEPENING OVER
THE GREAT LAKES. A SUBSTANTIAL TROUGH WILL DIG INTO THE TN AREA WITH
A STRONG COLD FRONT. THIS WILL BRING RAIN...CHANGING OVER TO A
RAIN AND SNOW MIX. AT THIS TIME...WINTRY TRAVEL IMPACTS LOOK
RELATIVELY LOW FOR MID TN...BUT PEOPLE WITH TRAVEL PLANS SHOULD BE
AWARE OF THE POTENTIAL FOR MORE SIGNIFICANT IMPACTS TO THE NORTH
OF TN AND ACROSS THE MOUNTAINS.

THE STORM SYSTEM WILL MOVE INTO EASTERN CANADA BY CHRISTMAS. MID
TN WILL SEE DRY WX WITH NEAR NORMAL TEMPS FOR CHRISTMAS DAY.

13

&&

.PRELIMINARY POINT TEMPS/POPS...
NASHVILLE      45  33  46  30 /  10  50  30   0
CLARKSVILLE    42  30  44  27 /  10  50  20   0
CROSSVILLE     44  32  45  31 /  10  50  40  05
COLUMBIA       46  33  47  31 /  10  60  30   0
LAWRENCEBURG   45  33  48  32 /  10  60  30   0
WAVERLY        43  31  44  29 /  10  50  20   0

&&

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

&&

$$






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