« Back
NWS Peachtree City, Ga » Text Product » MRX Area Forecast Discussion


Printer-friendly Version     Surrounding:  BMX  MRX  FFC  CAE  TAE  
Current Version              Previous Versions:   1  2  3  4  5  6  7  8  9  

Area Forecast Discussion

747
FXUS64 KMRX 240134
AFDMRX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE MORRISTOWN TN
930 PM EDT THU OCT 23 2014

.DISCUSSION...FORECAST ON TRACK. NO UPDATE PLANNED. CIRRUS CLOUDS
OVERNIGHT WITH LIGHT WINDS. LATE NIGHT TEMPERATURE DROP OFF. SON

PREVIOUS DISCUSSION: SHORT TERM (TONIGHT THROUGH SATURDAY
NIGHT)...CURRENT SURFACE ANALYSIS SHOWS A LARGE LOW PRESSURE SYSTEM
OFF THE NORTHEAST COAST...WITH A NARROW AREA OF HIGH PRESSURE
CENTERED OVER THE GREAT LAKES REGION EXTENDING SOUTHWARD ACROSS THE
TN RIVER VALLEY. SATELLITE IMAGERY REVEALS AN EXTENSIVE AREA OF
CLOUDS OVER THE CENTRAL APPALACHIANS WHICH WAS SLOWLY ERODING FROM
THE SOUTH OVER SOUTHWEST VA. AN EXTENSIVE AREA OF HIGH CLOUDS WAS
OCCURRING OVER THE MS RIVER VALLEY IN ASSOCIATION WITH AN UPPER-
LEVEL SHORT WAVE TROUGH. THIS SHORT WAVE WILL SLOWLY DRIFT EASTWARD
OVER THE TN RIVER VALLEY TONIGHT AND FRIDAY...BRINGING MAINLY JUST
AN INCREASE IN CLOUDS DUE TO LIMITED MOISTURE AND A STRONG MID LEVEL
INVERSION. A WEAK COLD FRONT IS PROGGED TO QUICKLY MOVE THROUGH THE
FORECAST AREA ON SATURDAY AFTERNOON AND EVENING...BUT MOISTURE WILL
AGAIN BE LIMITED RESULTING IN JUST ANOTHER SLIGHT INCREASE IN
CLOUDS. AS FOR TEMPS...GFS AND NAM GUIDANCE NUMBERS ARE IN GENERAL
AGREEMENT THROUGH SATURDAY NIGHT...AND WILL COMPROMISE WHERE SOME
SLIGHT DIFFERENCES ARE NOTED.

LONG TERM (SUNDAY THROUGH THURSDAY)...RIDGE OF HIGH PRESSURE WILL
DOMINATE AREA WEATHER THROUGH THE EARLY PART OF THE EXTENDED. SUNDAY
THROUGH TUESDAY SHOULD BE SEASONALLY WARM AND DRY. A PATTERN CHANGE
IS EXPECTED TUESDAY NIGHT AND WEDNESDAY AS A COLD FRONT APPROACHES
THE REGION. SOUTHERLY FLOW WILL INCREASE LOW LEVEL MOISTURE AND WEAK
LIFT AND INSTABILITY AHEAD OF THE APPROACHING FRONT WILL PROVIDE A
CHANCE OF SHOWERS WEDNESDAY AND THURSDAY. &&

.PRELIMINARY POINT TEMPS/POPS...
CHATTANOOGA AIRPORT, TN             43  71  46  73 /   0   0   0   0
KNOXVILLE MCGHEE TYSON AIRPORT, TN  42  69  45  71 /   0   0   0   0
OAK RIDGE, TN                       42  69  45  71 /   0   0   0   0
TRI CITIES AIRPORT, TN              37  66  40  68 /   0   0   0   0
&&

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

$$

DMG/MJB



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.