Area Forecast Discussion
Issued by NWS Knoxville/Tri Cities, TN

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000
FXUS64 KMRX 311905
AFDMRX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
305 PM EDT FRI JUL 31 2015

.SHORT TERM /TONIGHT AND SATURDAY/...
A VERY QUIET DAY ACROSS THE TENNESSEE VALLEY AND SOUTHERN
APPALACHIAN REGION WITH A SURFACE HIGH BUILDING IN...ALONG WITH
MUCH DRIER AIR. THE SUNNY CONDITIONS HAVE HELPED TEMPS CLIMB WELL
INTO THE 80S...AND THEY WILL LIKELY TOP OFF IN THE UPPER 80S TO
AROUND 90 OR 91 THIS AFTERNOON. HOWEVER...RH VALUES ARE MUCH LOWER
MAKING FOR A MORE COMFORTABLE AFTERNOON ACROSS THE REGION. THE
CLEAR AND MOSTLY CALM CONDITIONS WILL CONTINUE TONIGHT AND
SATURDAY...MAKING FOR A GREAT VIEWING EXPERIENCE FOR THE BLUE MOON
/SECOND FULL MOON OF JULY/ TONIGHT. GOOD RADIATIONAL COOLING WILL
TAKE PLACE THIS EVENING...AND ALLOW TEMPS TO DROP OFF QUICKLY...
BEFORE BOTTOMING OUT IN THE LOW TO MID 60S. AMPLE SUNSHINE AND
NORTHWEST FLOW CONTINUE ON SATURDAY...WITH HIGHS PERHAPS A DEGREE
HIGHER THAN TODAY.


.LONG TERM /SATURDAY NIGHT THROUGH FRIDAY/...
THE EXTENDED BEGINS WITH LITTLE CHANGE IN THE WEATHER PATTERN WITH
DRY NORTHWEST FLOW ALOFT AND SURFACE HIGH PRESSURE BUILDING INTO
THE REGION. THIS TRANSLATES INTO DRY...WARM CONDITIONS FOR THE
FIRST HALF OF THE EXTENDED. MONDAY AND TUESDAY...A COUPLE OF WEAK
IMPULSES IN THE UPPER FLOW WILL TRACK THROUGH TO OUR NORTH AND MAY
BRING A FEW ISOLATED SHOWERS/THUNDERSTORMS INTO NORTHERN LOCATIONS.
THERE CONTINUES TO BE SOME DIFFERENCES IN MODELS BY THE END OF THE
PERIOD BUT GENERALLY A SERIES OF SHORT WAVES IN THE UPPER FLOW WILL
MOVE INTO THE AREA. THIS COMBINED WITH SOME LOW LEVEL MOISTURE
RETURN WILL GENERATE ISOLATED TO SCATTERED CONVECTION OVER THE
REGION WEDNESDAY THROUGH FRIDAY.

&&

.PRELIMINARY POINT TEMPS/POPS...
CHATTANOOGA AIRPORT, TN             67  92  68  92 /   0   0   0   0
KNOXVILLE MCGHEE TYSON AIRPORT, TN  64  90  65  89 /   0   0   0  10
OAK RIDGE, TN                       64  90  65  89 /   0   0   0  10
TRI CITIES AIRPORT, TN              59  87  59  86 /   0   0  10  10

&&

.MRX WATCHES/WARNINGS/ADVISORIES...
NC...NONE.
TN...NONE.
VA...NONE.
&&

$$

AMP


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