000
FXUS64 KLCH 111921
AFDLCH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
221 PM CDT SAT OCT 11 2008

.SYNOPSIS...VISIBLE IMAGERY AGAIN REVEALING A CU FIELD FROM
AFTERNOON HEATING INTO A MOIST BOUNDARY LAYER. CLOUD STREETS
INDICATING WINDS AT THAT LAYER BEGINNING 10 TO 15 KNOTS IN
ANTICYLONIC EASTERLY FLOW. THE LACK OF GOOD DEFINITION TO THE
STREETS MEANS WINDS NOT APPROACHING 20 KNOTS. WHAT THIS MEANS IS
THAT PATCHY FOG IS A GOOD BET FOR MOST OF THE AREA AGAIN TONIGHT.

&&

.SHORT TERM...SHADED TEMPS HIGHER THAN GUIDANCE AGAIN TNITE DUE
TO BOUNDARY LAYER MOISTURE. RAIN CHANCES LOOK SLIM AND NONE WITH
SLIM LEAVING TOWN FOR THE WEEKEND. ZEROED OUT WITH THE MOIST LAYER ONLY
TO 4K FEET.

&&

.LONG TERM...THE STRONG BLOCKING HIGH PRESSURE RIDGE OVER THE
OHIO VALLEY HAS GENERATED LOW PRESSURE IN THE FORM OF AN INVERTED
TROF APPROACHING FLORIDA FROM THE EAST. THIS TROF WILL MOVE IN A
WESTERLY DIRECTION ACROSS THE NORTHERN GULF AND WILL BE WEAKENING
AS IT PASSES TO OUR SOUTH EARLY NEXT WEEK. RAIN CHANCES WILL
INCREASE HOWEVER DUE TO MOISTURE CARRIED ALONG ON THE BACKSIDE OF
THIS SYSTEM. THE BEST CHANCE FOR RAIN LOOKS TO BE AROUND WEDNESDAY
AS THIS MOISTURE COLLIDES WITH A WEAKENING AND STALLING PACIFIC
COLD FRONT. 

DRYING AND WARMING CONDITIONS ARE ON TAP AROUND THE END OF NEXT
WEEK AS RIDGING BUILDS OUT OF THE WESTERN STATES AND MOVES OVER
OUR AREA.

&&

.MARINE...EASTERLY WINDS WILL INCREASE EARLY NEXT WEEK WITH
BUILDING SEAS AND A CHANCE FOR TSTMS AS THE REMNANTS OF THE
INVERTED TROF MOVES THROUGH FROM THE EAST AND KICKS UP THE
PRESSURE GRADIENT.

&&

.AVIATION...PREDOMINANTLY IFR VIS IN FOG LATE TNITE FOR MOST OF
THE TERMINALS WITH THE POSSIBLE EXCEPTIONS OF BPT WHERE WINDS MAY
KEEP FOG FROM DROPPING BELOW MVFR AND AEX WHERE ADDITIONAL MIXING
IS EXPECTED IN THE BOUNDARY LAYER. AVIATION FORECASTER WILL KEEP A
TEMPO FOR IFR FOG AT BPT FOR NOW.

&&

.PRELIMINARY POINT TEMPS/POPS...
KLCH  66  84  68  80  70 /   0   0   5  10  10 
KBPT  65  83  68  82  71 /   0   0   5  20  10 
KAEX  67  84  67  83  70 /   0   0   0  20  10 
KLFT  67  83  68  80  71 /   0   0   5  10  10 

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...NONE.
TX...NONE.
GM...NONE.
&&

$$

SWEENEY