SPECIAL WEATHER STATEMENT
Issue Date: 455 AM CST MON DEC 28 2009
Expiration: 400 PM CST MON DEC 28 2009
...WINTER PRECIPITATION RETURNS TO THE FOUR STATE REGION LATE TUESDAY
THROUGH WEDNESDAY...
A STRONG STORM SYSTEM WILL MOVE ONSHORE ACROSS THE SOUTHWEST UNITED
STATES INTO NORTHWEST MEXICO TODAY WITH THIS SYSTEM POISED TO MOVE
INTO THE SOUTHERN PLAINS ON TUESDAY. A VERY COLD AIRMASS IS CURRENTLY
IN PLACE ACROSS THE REGION WITH TEMPERATURES NEARLY 10 DEGREES BELOW
NORMAL FOR LATE DECEMBER.
WHILE THE AIRMASS IS VERY COLD ACROSS THE REGION...THE ATMOSPHERE
WILL ALSO BE VERY DRY AHEAD OF THIS STORM SYSTEM. A STRONG
SUBTROPICAL JET WILL RESULT IN THE ATMOSPHERE TRYING TO SATURATE
FROM THE TOP DOWN AND THIS WILL RESULT IN THE LIKELIHOOD OF A MIXED
BAG OF WINTER PRECIPITATION ACROSS PORTIONS OF THE REGION BEGINNING
TUESDAY AFTERNOON. ALONG AND NORTH OF THE INTERSTATE 30 CORRIDOR...
INCLUDING NORTHEAST TEXAS...SOUTHEAST OKLAHOMA AND EXTREME SOUTHWEST
ARKANSAS...PRECIPITATION WILL LIKELY BEGIN AS A MIXTURE OF SLEET AND
LIGHT SNOW TUESDAY AFTERNOON AND THIS MIXED PRECIPITATION SHOULD
CONTINUE INTO TUESDAY NIGHT AND EARLY WEDNESDAY MORNING.
FURTHER SOUTH OF THE INTERSTATE 30 CORRIDOR TOWARDS THE INTERSTATE
20 CORRIDOR OF NORTHEAST TEXAS AND NORTHERN LOUISIANA...THE
PRECIPITATION WILL LIKELY BEGIN TUESDAY AFTERNOON AS A MIXED BAG OF
LIGHT SLEET AND RAIN...WITH PERHAPS SOME LIGHT SNOW ACROSS
NORTHEAST TEXAS. AS WE TRANSITION INTO THE LATE EVENING AND
OVERNIGHT HOURS TUESDAY NIGHT INTO EARLY WEDNESDAY MORNING...
TEMPERATURES IN THE LOWER LEVELS OF THE ATMOSPHERE SHOULD WARM
ENOUGH SUCH THAT THE PRECIPITATION SHOULD FALL IN THE FORM OF JUST
LIGHT RAIN.
THE SYSTEM IS EXPECTED TO EXIT THE FOUR STATE REGION TO THE EAST ON
WEDNESDAY...TAKING THE RAIN AND WINTRY PRECIPITATION WITH IT. THERE
REMAINS UNCERTAINTY AS TO THE DEPTH OF THE COLD AIR IN THE LOWER
LEVELS OF THE ATMOSPHERE AND THIS WILL PLAY A ROLE ON JUST HOW MUCH
WINTRY PRECIPITATION FALLS WITH THIS STORM SYSTEM. WINTER WEATHER
ADVISORIES MAY BE NEEDED FOR THE NORTHERN PORTIONS OF THE FOUR STATE
REGION AS THE STORM SYSTEM NEARS. FORECASTS WILL LIKELY BE REVISED
OVER THE NEXT 24 HOURS SO KEEP ABREAST ON THE PROGRESSION OF THIS
UPCOMING WINTER STORM EXPECTED TO AFFECT THE REGION TUESDAY
AFTERNOON THROUGH WEDNESDAY.
HAZARDOUS WEATHER OUTLOOK
Issue Date: 428 AM CST MON DEC 28 2009
Expiration: 1200 PM CST MON DEC 28 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
LOUISIANA...NORTHWEST LOUISIANA AND EAST TEXAS.
.DAY ONE...TODAY AND TONIGHT...
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...
A STORM SYSTEM WILL APPROACH FROM THE WEST TUESDAY AFTERNOON
ACROSS THE REGION. RAIN COULD BE MIXED WITH SOME SLEET TUESDAY
AFTERNOON ACROSS PORTIONS OF DEEP EAST TEXAS BUT THE TEMPERATURES
IN THE LOWER LEVELS OF THE ATMOSPHERE WOULD ONLY SUPPORT THIS
MIXTURE FOR A FEW HOURS TUESDAY BEFORE PRECIPITATION FALLS AS ALL
RAIN. THE RAIN WILL CONTINUE THROUGH TUESDAY NIGHT INTO THE FIRST
HALF OF WEDNESDAY BEFORE THE STORM SYSTEM EXITS THE REGION TO THE
EAST.
.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION WILL NOT BE NEEDED.
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