Brent wrote::?:
ZONE FORECAST
NATIONAL WEATHER SERVICE NEW ORLEANS LA
430 PM CST FRI DEC 24 2004
LAZ034>037-046>048-MSZ068>070-251030-
AMITE-EAST BATON ROUGE-EAST FELICIANA-IBERVILLE-PIKE-POINTE COUPEE-
ST HELENA-WEST BATON ROUGE-WEST FELICIANA-WILKINSON-
INCLUDING THE CITIES OF...BATON ROUGE...MCCOMB
430 PM CST FRI DEC 24 2004
.TONIGHT...MOSTLY CLOUDY. A FEW FLURRIES POSSIBLE. LOWS IN THE LOWER20S. NORTH WINDS AROUND 10 MPH. WIND CHILL READINGS 11 TO 16.
.CHRISTMAS DAY...MOSTLY CLOUDY. HIGHS AROUND 40. NORTH WINDS AROUND
10 MPH. WIND CHILL READINGS 11 TO 16.
AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE NEW ORLEANS/BATON ROUGE LA
550 PM CST FRI DEC 24 2004
.SHORT TERM...
LIGHT SLEET AND OCCASIONAL SNOW FLURRIES CONTINUE ACROSS MUCH OF THE
SOUTHERN HALF OF THE CWA INTO THE AFTERNOON. THIS IS AMOUNTING TO
MORE OF A HOLIDAY SEASONING THAN ANY FORM OF HAZARD OR WEATHER
CONCERN. THE GREATER CONCENTRATION APPEARS TO BE REMAIN GENERALLY
SOUTH OF PORT SULPHUR IN LOWER PLAQUEMINES PARISH. THE 12Z ANALYSES
INDICATE A STRONGLY POSITIVELY TILTED TROUGH ORIENTATION FROM
CENTRAL CANADA TO THE EL PASO TX AREA. A STRONG VORTICITY LOBE WAS
INDICATED OVER CHIHUAHUA STATE IN NORTHERN MEXICO AND QUITE
PRONOUNCED IN WATER VAPOR IMAGERY. THIS FEATURE ALREADY MOVING 6
HOURS FASTER THAN MODELS SUGGEST...WHICH WOULD INDICATE A GREATER
CHANCE FOR LOW PRESSURE DEVELOPMENT IN THE MIDDLE GULF LATER
TONIGHT. IF THIS RESULTS...THEN ISENTROPIC LIFT TO THE NORTH OF THE
LOW INTO SOUTHERN LOUISIANA AND COASTAL MISSISSIPPI MAY BE MORE
PRONOUNCED THAN MODELS INDICATE. THIS WILL ALSO INDUCE GREATER COLD
AIR ADVECTION NEAR THE SURFACE TO MAINTAIN COLDER THAN MOS
TEMPS...WHICH HAS BEEN THE CASE SINCE THE AIRMASS SET IN. DESPITE
THIS...FEEL THERE IS A LIKELIHOOD OF SLEET TO INDUCE A WET BULB
EFFECT AND CONVERT TO SNOW FLURRIES...PERSISTING ON CHRISTMAS DAY
ACROSS SOUTHERN LOUISIANA. AT THIS TIME...FEEL THIS ABOUT AN 80
PERCENT CHANCE OF OCCURRENCE BUT ONLY A SLIM CHANCE...LESS THAN 10
PERCENT OF MEASURABLE...EXCEPT FOR PLAQUEMINES PARISH.