I don't double post often, but I wanted to post this here. (also in SE TX thread)
NWS LCH overnight update: Beaumont went from 20% chance sleet on Thursday to 40% chance snow/sleet!
I'm still not holding my breath, but definitely liking the trend.
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LAKE CHARLES LA
326 AM CST MON JAN 4 2010
.DISCUSSION...
AN ARCTIC BLAST APPEARS TO BE HEADING OUR WAY FOR THE END OF THE
WEEK...WITH POSSIBLY THE COLDEST AIR WE HAVE SEEN SINCE THE WINTER
OF 1996 AND RECORDS COULD BE THREATENED BY THE END OF THE WEEK.
LATEST IMAGERY SHOWS A DECK OF CLOUDS ACROSS THE AREA AND ANOTHER
REINFORCING SHOT OF COLD AIR BEHIND A COLD FRONT MOVING SOUTHWARD
ACROSS NORTHERN LOUISIANA THROUGH EAST TEXAS. CLOUDS WILL BE AROUND
MOST OF TODAY AND TEMPS WILL STRUGGLE TO REACH THE MID TO UPPER
40S AREA WIDE THANKS TO COLD AIR ADVECTION. TONIGHT LOOKS VERY
CHILLY WITH CLEARING SKIES AND COLD HIGH PRESSURE BUILDING IN WITH
TEMPS IN THE MID 20S TO UPPER 20S. WENT AHEAD AND ISSUED A HARD
FREEZE WARNING FOR ALL AREAS WITH THE EXCEPTION OF THE VERY
IMMEDIATE COASTLINE FOR TONIGHT.
COLD AND QUIET WEATHER ANTICIPATED UNTIL WEDNESDAY NIGHT AND
THURSDAY MORNING WHEN AN ARCTIC FRONT WILL BLAST THROUGH THE
AREA. THERE IS QUITE A SNOW PACK ACROSS THE NORTHERN HALF OF THE
CONUS AND A VERY COLD DOME OF HIGH PRESSURE 1054 MB WILL SLIDING
SOUTH FROM CANADA. THIS PIECE OF ARCTIC WILL HAVE NO PROBLEM
MAKING ITSELF FELT ALL THE WAY TO THE SOUTHERN CONUS. THE TIMING
OF THE COLD AIR ADVECTION WITH THE FRONT AND THE LAGGING PRECIP
BEHIND THE FRONT ON THURSDAY BECOMES PROBLEMATIC. LOOKS LIKE THE
ARCTIC WILL BE ABLE TO CATCH UP WITH THE PRECIP FROM NORTHWEST TO
SOUTHEAST BEFORE LEAVING THE AREA AND CHANGE FROM LIGHT RAIN TO
SLEET TO MAYBE EVEN SOME LIGHT SNOW BEFORE ENDING THURSDAY
AFTERNOON. THIS FORECAST WILL BE FINE TUNE AS THIS EVENT GETS
CLOSER. THE MAIN STORY FOR FRIDAY MORNING AND SATURDAY MORNING
WILL BE THE EXTREMELY FRIDGED AIR ACROSS THE REGION AND RESIDENTS
NEED TO PREPARE FOR OVERNIGHT LOWS IN THE MID TO UPPER TEENS WITH HIGHS
ONLY BE IN THE 30S FRIDAY. WIND CHILLS VALUES COULD BE IN THE
SINGLE DIGITS WHICH WOULD JUSTICE POSSIBLE WIND CHILL ADVISORIES.
A SLOW MODERATION OF TEMPERATURES WILL RETURN BY THE EARLY PART OF
NEXT WEEK BUT STILL BELOW AVERAGE FOR THIS TIME OF YEAR.
http://forecast.weather.gov/product.php?site=NWS&issuedby=LCH&product=AFD&format=CI&version=1&glossary=1
The posts in this forum are NOT official forecast and should not be used as such. They are just the opinion of the poster and may or may not be backed by sound meteorological data. They are NOT endorsed by any professional institution or 
A lot to read, but it's basically a pattern that allows really cold air to plunge all the way south to the Mexican border. The lower Rio Grand river valley experiences a rare freeze. At the time Marshall J. Mcfarland had written a paper to help foresee freezes that far south before models and satellite data hence the name.
my Cowboys 
