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

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000
FXUS64 KMRX 181255 AAA
AFDMRX

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE MORRISTOWN TN
855 AM EDT SAT APR 18 2015

.DISCUSSION...DENSE FOG IS SLOWING LIFTING ACROSS THE AREA THIS
MORNING...HOWEVER...WILL EXTEND ADVISORY UNTIL 14Z (10 AM ET).
MODELS...INCLUDING LATEST HRRR MODEL...SHOWS UPSLOPE FLOW INTO THE
SPINE OF SOUTHERN APPALACHIANS THIS AFTERNOON. MARGINAL INSTABILITY
WILL ALLOW SHOWERS AND ISOLATED THUNDERSTORMS TO DEVELOP ACROSS THE
MOUNTAINS...THEN SPREADING INTO THE VALLEY. BEST COVERAGE...DUE TO
BETTER INSTABILITY...WILL BE ACROSS THE CENTRAL AND SOUTHERN
MOUNTAINS AND SOUTHWEST NORTH CAROLINA. HAVE INCREASE CHANCES FOR
CONVECTION AREA-WIDE.

&&

.PRELIMINARY POINT TEMPS/POPS...
CHATTANOOGA AIRPORT, TN             76  62  76  61 /  40 100  90  60
KNOXVILLE MCGHEE TYSON AIRPORT, TN  78  61  76  61 /  40 100  90  60
OAK RIDGE, TN                       77  62  75  60 /  30 100  90  60
TRI CITIES AIRPORT, TN              80  58  75  56 /  30  70  90  60

&&

.MRX WATCHES/WARNINGS/ADVISORIES...
NC...DENSE FOG ADVISORY UNTIL 10 AM EDT THIS MORNING FOR CHEROKEE-
     CLAY.

TN...DENSE FOG ADVISORY UNTIL 10 AM EDT /9 AM CDT/ THIS MORNING FOR
     ANDERSON-BLEDSOE-BLOUNT SMOKY MOUNTAINS-BRADLEY-CAMPBELL-
     CLAIBORNE-COCKE SMOKY MOUNTAINS-EAST POLK-GRAINGER-HAMBLEN-
     HAMILTON-HANCOCK-HAWKINS-JEFFERSON-JOHNSON-KNOX-LOUDON-
     MARION-MCMINN-MEIGS-MORGAN-NW BLOUNT-NORTH SEVIER-NORTHWEST
     CARTER-NORTHWEST COCKE-NORTHWEST GREENE-NORTHWEST MONROE-
     RHEA-ROANE-SCOTT TN-SEQUATCHIE-SEVIER SMOKY MOUNTAINS-
     SOUTHEAST CARTER-SOUTHEAST GREENE-SOUTHEAST MONROE-SULLIVAN-
     UNICOI-UNION-WASHINGTON TN-WEST POLK.

VA...DENSE FOG ADVISORY UNTIL 10 AM EDT THIS MORNING FOR LEE-RUSSELL-
     SCOTT-WASHINGTON-WISE.

&&

$$





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