FXUS64 KLIX 232034
AFDLIX
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEW ORLEANS LA
234 PM CST WED DEC 23 2009
.SHORT TERM...
OBVIOUS CONCERNS WILL LIE WITH TWO AREAS OF CONVECTION TONIGHT AND
THU. THE FIRST WILL DEVELOP ALONG A WARM FRONTAL AXIS LATER
TONIGHT FROM LFT EASTWARD. TS WILL HAVE A TOUGH TIME NEAR THE
COAST DUE TO A DEEPER MARINE LAYER KEEPING STABILITY IN THE BL.
BUT THIS WILL CHANGE AS THE WARM FRONT MOVES FARTHER NORTH AND THE
STRONG SPLIT FLOW AND WIND SPEEDS AT JET LEVEL MOVE ALONG THE
FRONTAL AXIS. THIS SHOULD BEGIN TO SHOW ITSELF BY THIS AFTERNOON
AND EVENING. THE STORMS IN THIS AREA WILL SIMPLY GET STRONGER AND
WILL BE CAPABLE OF PRODUCING DAMAGING WINDS AND TORNADOES FROM
AROUND MIDNIGHT THROUGH MUCH OF THU MORNING. THE MAIN SQUALL LINE
WILL COME THROUGH BTR BETWEEN 10-11AM...MCB AROUND 11AM. MSY
AROUND NOON. AND GPT AROUND 2PM. A WIND ADVISORY MAY ALSO BE
NEEDED LATER TONIGHT FOR GRADIENT WINDS BEFORE THE FRONT EVEN GETS
HERE.
.LONG TERM...
SOME COLD AIR WILL SETTLE BEHIND THE FRONT THU AND FRIDAY. HIGHS
WILL STRUGGLE TO GET OUT OF THE 40S THROUGH SAT. ANOTHER SYSTEM
WILL BEGIN TO DEVELOP WELL INTO THE GULF BY THE WEEKEND AND
ANOTHER STRONGER SFC LOW DEVELOPS IN THE WESTERN GULF MON BRINGING
OUR NEXT WX STARTING TUE.
&&
.PRELIMINARY POINT TEMPS/POPS...
MCB 59 65 36 49 / 100 100 20 0
BTR 61 64 35 50 / 100 100 10 0
MSY 62 69 42 53 / 100 100 10 0
GPT 61 68 41 53 / 80 100 30 0
&&
.LIX WATCHES/WARNINGS/ADVISORIES...
LA...NONE.
MS...NONE.
GM...SMALL CRAFT ADVISORY FROM 6 AM THURSDAY TO 6 AM
FRIDAY FOR THE FOLLOWING ZONES: AND LAKE PONTCHARTRAIN AND LAKE
MAUREPAS.
SMALL CRAFT ADVISORY FROM 6 PM WEDNESDAY TO 6 AM FRIDAY FOR THE
FOLLOWING ZONES: COASTAL WATERS FROM PASCAGOULA MS TO THE
SOUTHWEST PASS OF THE MISSISSIPPI RIVER FROM 20 TO 60
NM...COASTAL WATERS FROM PASCAGOULA MS TO THE SOUTHWEST
PASS OF THE MISSISSIPPI RIVER OUT 20 NM...COASTAL WATERS
FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO LOWER
ATCHAFALAYA RIVER LA FROM 20 TO 60 NM...AND COASTAL WATERS
FROM THE SOUTHWEST PASS OF THE MISSISSIPPI RIVER TO LOWER
ATCHAFALAYA RIVER LA OUT 20 NM.
&&
$$