HAZARDOUS WEATHER OUTLOOK
Issue Date: 1145 AM CST SUN DEC 20 2009
Expiration: 500 AM CST MON DEC 21 2009
THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.
.DAY ONE...THROUGH TONIGHT...
THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT EXPECTED THROUGH TONIGHT.
DISCUSSION...
A DRY AND STABLE AIRMASS WILL REMAIN IN PLACE THROUGH TONIGHT ACROSS
OKLAHOMA AND NORTH TEXAS.
PROBABILITY TABLE...
VALID THROUGH 700 AM CST MONDAY DEC 21.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...ZERO PERCENT.
OTHER HAZARDOUS WEATHER...
NONE.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...
THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE POSSIBLE LATE TUESDAY INTO WEDNESDAY ACROSS
SOUTHEAST OKLAHOMA...AS AN UPPER LEVEL STORM APPROACHES. THE MAIN
HAZARDS WILL BE CLOUD TO GROUND LIGHTNING AND SMALL HAIL.
OTHER HAZARDOUS WEATHER...
SNOW IS FORECAST FROM WEDNESDAY INTO THURSDAY. AS A STRONG STORM
SYSTEM MOVES ACROSS THE AREA ON WEDNESDAY... VERY COLD AIR WILL MOVE
QUICKLY SOUTH ON THE BACKSIDE OF THIS STORM. PRECIPITATION IS
EXPECTED TO TRANSITION QUICKLY TO SNOW ACROSS NORTHWEST OKLAHOMA
EARLY WEDNESDAY. FARTHER SOUTH AND EAST A TRANSITION OF RAIN TO SNOW
IS FORECAST TO OCCUR WEDNESDAY INTO WEDNESDAY NIGHT. SOME
ACCUMULATING SNOW IS POSSIBLE... ESPECIALLY ACROSS NORTHWEST
OKLAHOMA... BEFORE THE STORM SYSTEM MOVES EAST OF THE AREA
THURSDAY.
BEHIND THE STORM...ARCTIC AIR WILL OVERSPREAD THE SOUTHERN PLAINS.
TEMPERATURES MAY REMAIN NEAR OR BELOW FREEZING FOR AN EXTENDED TIME
BETWEEN THURSDAY AND SATURDAY. WIND CHILL TEMPERATURES COULD BECOME
DANGEROUSLY LOW...ESPECIALLY IN NORTHERN OKLAHOMA.
THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED AT 5 AM
MONDAY.
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