Area Forecast Discussion
Issued by NWS New Orleans/Baton Rouge, LA

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292
FXUS64 KLIX 202012
AFDLIX

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW ORLEANS LA
312 PM CDT SUN APR 20 2014

.SYNOPSIS...
A HIGH PRESSURE RIDGE WILL DOMINATE THE AREA TONIGHT AND MOVE
SOUTH INTO THE GULF OF MEXICO MONDAY AS A WEAK COLD FRONT AND
ASSOCIATED UPPER LEVEL TROUGH APPROACHES THE AREA FROM THE
PLAINS. THE COLD FRONT AND UPPER LEVEL TROUGH WILL MOVE THROUGH
SOUTHERN LOUISIANA AND MISSISSIPPI TUESDAY AND TUESDAY NIGHT. THE
COLD FRONT WILL MOVE INTO THE NORTHERN GULF AND DISSIPATE ON
WEDNESDAY AS WEAK HIGH PRESSURE ALOFT BUILDS OVER THE NORTHERN
GULF.

&&

.DISCUSSION...
SURFACE HIGH PRESSURE WILL BUILD OVER THE EASTERN GULF OF MEXICO
FOR THURSDAY THROUGH SUNDAY. A WEAK UPPER LEVEL RIDGE WILL KEEP
UPPER LEVEL DISTURBANCES AND COLD FRONTS AWAY FROM THE CENTRAL GULF
COAST REGION DURING THIS PERIOD.

&&

.AVIATION...
CLEAR SKY AND VISIBILITY AROUND 10 MILES ARE EXPECTED THROUGH
ABOUT 06Z. PATCHY FOG LOWERING VISIBILITY BETWEEN 1 AND 3 MILES
MAY FORM AFTER 06Z ALONG AND NORTHWEST OF A KBTR...KMCB LINE. DUE
TO THE SHALLOW NATURE OF THE MOISTURE AND LACK OF CLOUD
COVER...THE PATCHY FOG SHOULD RAPIDLY DISSIPATE BY 14 TO 15Z. VFR
CONDITIONS ARE EXPECTED 15Z THROUGH 00Z.

&&

.MARINE...
EAST WINDS 10 KNOTS AREA EXPECTED TONIGHT BECOMING SOUTHEAST ON
MONDAY. WINDS WILL BECOME SOUTHWEST 10 TO 15 KNOTS MONDAY EVENING
AND SHIFTING TO NORTHWEST AFTER MIDNIGHT AS THE COLD FRONT ENTERS
THE COASTAL WATERS AND BECOMES STATIONARY ON TUESDAY. LIGHT NORTHERLY
WINDS ARE FORECAST FOR WEDNESDAY. SOUTH WINDS 10 TO 15 KNOTS ARE
EXPECTED THURSDAY AND FRIDAY AS HIGH PRESSURE BUILDS OVER THE
EASTERN GULF. WAVES WILL BE 1 TO 2 FEET OVER THE COASTAL WATERS
AND ABOUT 1 FOOT IN PROTECTED BAYS AND LAKES.

&&

.DECISION SUPPORT...
DECISION SUPPORT...
DSS CODE...GREEN
DEPLOYED...NONE
ACTIVATION...NONE
ACTIVITIES...SLURRY SUPPORT MONITORING RIVER FLOODING SMALL CRAFT
ADVISORY


DECISION SUPPORT SERVICES (DSS) CODE LEGEND
GREEN  = NO WEATHER IMPACTS THAT REQUIRE ACTION
BLUE   = LONG FUSED WATCH/WARNING/ADVISORY IN EFFECT OR HIGH
         VISIBILITY EVENT
YELLOW = HEIGHTENED IMPACTS WITH SHORT FUSED
         WATCH/WARNING/ADVISORY ISSUANCES; RADAR SUPPORT
ORANGE = HIGH IMPACTS - SLIGHT TO MODERATE RISK SEVERE; NEARBY
         TROPICAL EVENTS; HAZMAT OR OTHER LARGE EPISODES
RED    = FULL ENGAGEMENT FOR MODERATE TO HIGH RISK SVR
         AND/OR DIRECT TROPICAL THREATS; EVENTS OF NATIONAL
         SIGNIFICANCE

&&

.PRELIMINARY POINT TEMPS/POPS...
MCB  55  80  59  79 /  10  10  10  40
BTR  57  83  60  84 /  10  10  10  20
ASD  57  78  60  79 /   0  10  10  30
MSY  61  78  62  79 /   0  10  10  20
GPT  60  76  62  77 /   0  10  10  30
PQL  54  76  56  77 /   0  10  10  30

&&

.LIX WATCHES/WARNINGS/ADVISORIES...
LA...NONE.
GM...NONE.
MS...NONE.
GM...NONE.
&&

$$







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