Area Forecast Discussion
Issued by NWS Lake Charles, LA

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FXUS64 KLCH 191153
AFDLCH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
758 AM CDT SAT APR 19 2014

.DISCUSSION...
FOR THE 12Z TAF PACKAGE.

&&

.AVIATION...
HIGH PRESSURE ALOFT AND AT THE SURFACE WILL RESULT IN WEAK WINDS AND
MOSTLY CLEAR SKIES EXCEPT FOR SOME STREAMING HIGH CLOUDS MOVING FROM
WEST TO EAST. VFR CONDITIONS WILL PREVAIL.

06

&&

.PREV DISCUSSION...
LATEST WATER VAPOR SATELLITE IMAGERY/UPPER AIR ANALYSIS SHOWED A
PAIR OF UPPER LOWS ACROSS THE SOUTHERN CONUS...ONE OVER THE FL
PANHANDLE DEPARTING TO THE EAST...AND ANOTHER TO THE WEST OVER THE
BAJA. BETWEEN THESE TWO FEATURES...MID/UPPER RIDGING WAS NOTED
ACROSS TX AND INTO THE SOUTHERN PLAINS.

AT THE SFC...LOW PRESSURE WAS NOTED NEAR APALACHICOLA...WITH A
RIDGE OF HIGH PRESSURE STRETCHING FROM THE GREAT LAKES INTO THE NW
GULF.

DEEP LAYER RIDGING IS FCST TO PREVAIL THROUGH THE
WEEKEND...LEADING TO A GENERALLY MOSTLY SUNNY SKY AND LIGHT
WINDS AS AFTERNOON TEMPERATURES CLIMB INTO THE UPPER 70S TO NEAR
80 AT MOST LOCATIONS. HIGH CLOUDS WILL BEGIN TO INCREASE TONIGHT
AND TOMORROW AS MOISTURE ALOFT IS CARRIED IN BY THE SUBTROPICAL
JET...BUT THIS SHOULD NOT PROVE TO BE MUCH OF AN INHIBITOR TO GOOD
RADIATIONAL COOLING. MODERATION WILL OCCUR AS THE COOL HIGH ONLY
GRADUALLY BREAKS DOWN.

THE UPPER LOW TO THE WEST IS PROGGED TO LIFT OUT TO THE NORTHEAST
AND WEAKEN OVER THE WEEKEND...CROSSING THE MID MS RIVER VALLEY ON
MONDAY. THE MEAN TROF AXIS...HOWEVER...WILL LAG A BIT BEHIND...NOT
TRAVERSING THE REGION UNTIL LATE MONDAY INTO TUESDAY. CONTINUED
WITH LOW END POPS MONDAY NIGHT INTO TUESDAY AS THE TROF NUDGES A
WEAK FRONT INTO THE AREA. THE FRONT IS EXPECTED TO HANG UP NEAR
THE COAST OR JUST OFFSHORE TUESDAY NIGHT...WITH LITTLE CHANGE
EXPECTED TO TEMPERATURES OTHER THAN A BRIEF HALT TO THE MODERATING
TREND.

SHORTWAVE RIDGING PROGGED TO PREVAIL ON WED...WITH GLOBAL MODELS
BECOMING INCREASINGLY DIVERGENT HEADING THROUGH THE END OF THE
WEEK AND INTO THE WEEKEND. NO SIGNIFICANT CHANGES WERE MADE TO
THIS PART OF THE FORECAST.

13

&&

.MARINE...
WINDS WILL BECOME LIGHT AND VARIABLE TODAY AS HIGH PRESSURE
BUILDS INTO THE AREA. HIGH PRESSURE WILL PREVAIL THROUGH EARLY
NEXT WEEK WITH LIGHT WINDS AND LOW SEAS EXPECTED TO PERSIST.

13

&&

.PRELIMINARY POINT TEMPS/POPS...
KLCH  78  56  78  59 /  10  10  10  10
KBPT  78  57  78  60 /  10  10  10  10
KAEX  78  56  80  58 /  10  10  10  10
KLFT  78  57  80  59 /  10  10  10  10

&&

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

&&

$$

PUBLIC/MARINE...13







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