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Area Forecast Discussion

282
FXUS64 KOHX 181711
AFDOHX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NASHVILLE TN
1211 PM CDT THU SEP 18 2014

.UPDATE...FOR 18Z TAFS.

&&

.AVIATION...

UPPER TROUGH REMAINS IN THE EAST WITH RIDGING INFLUENCES BUILDING
IN ON FRIDAY. SOME LOW LEVEL MOISTURE BELOW 5 KFT WILL REMAIN
ACROSS MIDDLE TN. GFS AND NAM SHOW THAT AIR WILL BE SLIGHTLY DRIER
THAN LAST NIGHT BUT CONDITIONS AT CKV AND CSV ARE EXPECTED TO GO
MVFR WITH FOG IN THE 09-12Z PERIOD. BNA IS EXPECTED TO REMAIN VFR.
WINDS ARE EXPECTED TO REMAIN GENERALLY BELOW 10 KT.

&&

.PREV DISCUSSION... /ISSUED 620 AM CDT THU SEP 18 2014/

UPDATE...FOR 12Z AVIATION.

AVIATION...12Z TAF DISCUSSION.

CLOUD HIGHS CONTINUE TO STREAM INTO MIDDLE TN THIS MORNING...BLOW
OFF FROM STORMS WELL WEST OF HERE. WHILE THESE HIGH CLOUDS WILL
LIKELY BE MAINTAINED TODAY...SOME LIGHT MVFR VIS MIGHT OCCUR TOWARDS
THE END OF IT...VFR CONDITIONS WILL PERSIST THROUGH MOST OF THIS
TAF CYCLE. WINDS WILL LIGHT OUT OF THE ENE TODAY.

UNGER

PREV DISCUSSION... /ISSUED 205 AM CDT THU SEP 18 2014/

DISCUSSION...
DISTURBANCE UPSTREAM SO WILL KEEP SHOWERS AND ISOLATED THUNDERSTORMS
IN FORECAST OVER SOUTHWESTERN AREAS THROUGH THE MORNING...BUT BULK
OF RAIN SHOULD FALL OVER WEST TENNESSEE WHILE CLIPPING SOUTHWEST
MIDDLE TENNESSEE AS SHORT WAVE TRACKS TO OUR WEST IN NORTHWESTERLY
FLOW ALOFT. ON FRIDAY UPPER RIDGE WILL BEGIN TO BUILD THIS WAY
FROM SOUTHERN PLAINS WITH WESTERLIES STRUNG OUT ACROSS NORTHERN
U.S. BY SATURDAY. THIS WILL BE SHORT LIVED AS WEST COAST RIDGE
AMPLIFIES BUCKLING BELT OF WESTERLIES AND DEVELOPING A TROUGH DOWN
THROUGH THE GREAT LAKES BY SUNDAY. UPPER TROUGH DEEPENS DURING THE
DAY ON SUNDAY AS COLD FRONT DIVES SOUTHEAST TO TENNESSEE BRINGING
A GOOD CHANCE FOR SHOWERS AND A FEW THUNDERSTORMS SUNDAY AND
SUNDAY NIGHT. EASTERN U.S UPPER TROUGH LIFTS OUT MONDAY THROUGH
WEDNESDAY OF NEXT AS UPPER RIDGE BUILDS THIS WAY FROM SOUTHERN U.S.

TEMPS WILL WARM A LITTLE EACH DAY AS WE GO INTO THE UPCOMING WEEKEND
WITH HIGHS BY SATURDAY IN THE MIDDLE 80S MANY AREAS WITH UPPER 70S
ALONG THE PLATEAU. FRONTAL PASSAGE ON SUNDAY WILL BE FOLLOWED BY A
CANADIAN HIGH PRESSURE AREA THAT WILL PROVIDE SOME VERY PLEASANT FALL
LIKE TEMPERATURES FOR MUCH OF NEXT WEEK WITH HIGHS GENERALLY IN THE 70S
AND LOWS IN THE 50S.

&&

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

&&

$$

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