FXUS64 KMRX 251127
AFDMRX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
620 AM EST FRI DEC 25 2009
.AVIATION...TYS WIND SENSOR STILL QUESTIONABLE, SO OBSERVATIONS
BEING AUGMENTED. HOPEFULLY THIS WILL BE REMEDIED TODAY. LARGE CLOUD
SHIELD WITH MODERATLY HUMID (ALBEIT COOL) AIR MOVING EASTWARD OVER
AREA. THE BACK EDGE OF THE RAIN IS MOVING THROUGH SOUTHEAST TN NOW.
SLOW BUT SURE PROGRESS WILL KEEP SOME RAIN IN ALL THREE TAF SITES
FOR TWO TO THREE HOURS MORE, BUT IT IS WEAKENING AS IT MOVES EAST.
CIGS AND VSBYS ARE GENERALLY MVFR WITH RAIN AND "LOW" VFR WHEN IT
DOES NOT RAIN. THE ISSUE IS THE WIND. PUBLIC REPORTS OF GUSTS TO
NEAR 50 MPH AND EVEN AWOS REPORTS IN SW NC OF 51 KTS HAVE COME IN TO
THE OFFICE. MOUNTAIN TOWER DATA NOT AVAILABLE BUT SUSPECT EXTREMELY
HIGH WINDS THERE. HAVE NOT FORECAST LLWS DUE TO SFC WINDS PICKING UP
SPEED AND THERE BECOMING LESS OF A SHEAR FACTOR IN THE WIND SPEED
AND DIRECTION OFF THE SURFACE. SOME PIREPS BY LARGE AIRCRAFT OF TURB
BELOW 7000 FEET.
DIMINISH CIGS SOMEWHAT THROUGH DAY AND SLACKEN THE WINDS LATER THIS
AFTN AND EVENING.
&&
.PRELIMINARY POINT TEMPS/POPS...
CHATTANOOGA AIRPORT, TN 50 31 50 30 49 / 30 10 10 10 20
KNOXVILLE MCGHEE TYSON AIRPORT, TN 51 30 48 29 47 / 60 10 10 10 20
OAK RIDGE, TN 51 31 48 29 46 / 50 10 10 10 20
TRI CITIES AIRPORT, TN 54 27 45 24 46 / 80 10 10 10 20
&&
.MRX WATCHES/WARNINGS/ADVISORIES...
NC...WIND ADVISORY UNTIL NOON EST TODAY FOR THE FOLLOWING ZONES:
CHEROKEE...CLAY.
TN...HIGH WIND WARNING UNTIL NOON EST TODAY FOR THE FOLLOWING ZONES:
BLOUNT SMOKY MOUNTAINS...COCKE SMOKY MOUNTAINS...EAST
POLK...JOHNSON...MCMINN...NW BLOUNT...NORTH SEVIER...
NORTHWEST CARTER...NORTHWEST COCKE...NORTHWEST GREENE...
NORTHWEST MONROE...SEVIER SMOKY MOUNTAINS...SOUTHEAST
CARTER...SOUTHEAST GREENE...SOUTHEAST MONROE...UNICOI...
WASHINGTON TN...WEST POLK.
WIND ADVISORY UNTIL NOON EST /11 AM CST/ TODAY FOR THE FOLLOWING
ZONES: ANDERSON...BLEDSOE...BRADLEY...CAMPBELL...
CLAIBORNE...GRAINGER...HAMBLEN...HAMILTON...HANCOCK...
HAWKINS...JEFFERSON...KNOX...LOUDON...MARION...MEIGS...
MORGAN...RHEA...ROANE...SCOTT TN...SEQUATCHIE...SULLIVAN...
UNION.
VA...HIGH WIND WARNING UNTIL NOON EST TODAY FOR THE FOLLOWING ZONES:
LEE...RUSSELL...WASHINGTON...WISE.
WIND ADVISORY UNTIL NOON EST TODAY FOR THE FOLLOWING ZONES:
SCOTT.
&&
$$
BB