Area Forecast Discussion
Issued by NWS Lake Charles, LA

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FXUS64 KLCH 040855
AFDLCH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
355 AM CDT WED MAY 4 2016

.DISCUSSION...
LATEST WATER VAPOR IMAGERY/UPPER AIR ANALYSIS SHOWED BROAD
TROFFING OVER THE CENTRAL/EASTERN CONUS...WITH AN AMPLIFIED RIDGE
OVER THE DESERT SW/INTERMOUNTAIN WEST. AT THE SFC...HIGH PRESSURE
RIDGES EWD FROM CENTRAL TX TO THE OHIO RIVER VALLEY...WITH A CDFNT
TO THE NORTH OVER NRN MO AND THE KS/NE BORDER.

BLOCKY PATTERN DEVELOPING OVER THE CONUS TO END THE WEEK...WITH
DEEP TROFS/LOWS OVER THE COASTS...AND AMPLIFIED RIDGE OVER THE
ROCKIES/PLAINS. THIS WILL YIELD A MUCH NEEDED REPRIEVE FROM
RAINFALL FOR THE NEXT SEVERAL DAYS...ALONG WITH DRIER AIR AND
COOLER NIGHT TIME TEMPERATURES.

SHORTWAVE TROF CURRENTLY TRAVERSING THE ARKLATEX PROGGED TO
CONTINUE HARMLESSLY THROUGH THE REGION THIS MORNING...GENERATING
LITTLE MORE THAN MID LEVEL CLOUD COVER. MEANWHILE...CDFNT TO THE
NORTH WILL BE DRIVEN QUICKLY SWD BY A SURGE OF JET ENERGY DIGGING
SOUTH THROUGH THE UPPER MIDWEST/MID MS RIVER VALLEY. AMID PLENTY
OF SUN AND A BIT OF PRE-FRONTAL THERMAL RIDGING...TEMPERATURES
TODAY ARE EXPECTED TO REACH AROUND 80. CDFNT IS FCST TO CROSS THE
INLAND CWA DURING THE OVERNIGHT HRS...REACHING THE NRN GULF WATERS
EARLY THU MORNING. BRUNT OF COOL AIR WILL REMAIN TO THE
EAST...WITH THE FRONT GENERALLY JUST MAINTAINING THE COOL/DRY
AIRMASS ALREADY IN PLACE. SFC HIGH PRESSURE AND NW FLOW ALOFT WILL
PREVAIL THU AND FRI.

PATTERN PROGGED TO BREAK DOWN OVER THE WEEKEND...WITH THE WRN
CONUS UPPER LOW SLOWLY WEAKENING AS IT CRAWLS EWD THRU THE
ROCKIES/PLAINS EARLY TO MID NEXT WEEK. SFC HIGH WILL SHIFT EAST OF
THE AREA BY SAT...WITH WHAT REMAINS OF THE RIDGE ALOFT TRAVERSING THE
AREA SAT AND SUN. MSTR WILL START TO INCREASE AMID THE ONSHORE LOW
LEVEL FLOW...BUT IT APPEARS RAIN CHANCES WILL HOLD OFF UNTIL MON
WHEN BETTER UPPER SUPPORT ARRIVES WITH THE APPROACH OF THE UPPER
TROF.

13

&&

.MARINE...
LIGHT TO MODERATE OFFSHORE FLOW WILL PREVAIL THROUGH THE REST OF
THE WEEK...AS A REINFORCING FRONT MOVES THROUGH THE COASTAL
WATERS TONIGHT AND HIGH PRESSURE PREVAILS IN ITS WAKE. THE
SURFACE HIGH WILL BEGIN TO MOVE OFF TO THE EAST FRIDAY...WITH A
LIGHT TO MODERATE ONSHORE FLOW RETURNING FOR THE WEEKEND.

13

&&

.PRELIMINARY POINT TEMPS/POPS...
AEX  79  56  77  54 /   0   0   0   0
LCH  79  59  79  56 /   0   0   0   0
LFT  79  60  79  57 /   0   0   0   0
BPT  81  58  81  56 /   0   0   0   0

&&

.LCH WATCHES/WARNINGS/ADVISORIES...
LA...NONE.
TX...NONE.
GM...SMALL CRAFT EXERCISE CAUTION UNTIL NOON CDT TODAY FOR GMZ455-472-
     475.

&&

$$


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