HAZARDOUS WEATHER OUTLOOK
Issue Date: 1200 PM CST SUN DEC 6 2009
Expiration: 400 AM CST MON DEC 07 2009
THIS HAZARDOUS WEATHER OUTLOOK COVERS NORTHERN...WESTERN...
CENTRAL...AND SOUTHERN OKLAHOMA...AND WESTERN NORTH TEXAS.
.DAY ONE...THIS AFTERNOON AND TONIGHT...
THUNDERSTORM OUTLOOK...
THUNDERSTORMS WILL NOT OCCUR THROUGH TONIGHT.
DISCUSSION...
VERY LIGHT RAIN MAY ACCOMPANY THE RETURN OF GULF MOISTURE INTO
SOUTHEAST OKLAHOMA...AND THE ARRIVAL OF A COLD FRONT IN NORTHWEST
OKLAHOMA. INSTABILITY WILL REMAIN NEAR ZERO...AND THUNDERSTORMS ARE
NOT EXPECTED.
PROBABILITY TABLE...
VALID THROUGH 700 AM CST MONDAY DEC 7.
PROBABILITY OF THUNDERSTORMS OCCURRING IN THE
NWS NORMAN COUNTY WARNING AREA...LESS THAN 5 PERCENT.
OTHER HAZARDOUS WEATHER...
THE TEMPERATURE WILL FALL QUICKLY BEHIND THE COLD FRONT LATE IN THE
AFTERNOON AND THROUGHOUT THE EVENING. A BRIEF PERIOD OF FREEZING
DRIZZLE MAY OCCUR AT SOME LOCATIONS IN WESTERN AND NORTHERN
OKLAHOMA. THE PRECIPITATION IS FORECAST TO BE ISOLATED AND SHORT
LIVED. THEREFORE...SIGNIFICANT IMPACTS FROM ICE ARE NOT EXPECTED.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY...
THUNDERSTORM OUTLOOK...
THUNDERSTORMS ARE NOT LIKELY DURING THE NEXT WEEK...BUT IT IS
POSSIBLE THAT A VIGOROUS UPPER LEVEL TROUGH COULD GENERATE
THUNDERSTORMS WITH ISOLATED LIGHTNING STRIKES ON TUESDAY.
OTHER HAZARDOUS WEATHER...
A VARIETY OF WEATHER HAZARDS ARE POSSIBLE WHEN A STORM SYSTEM
INTENSIFIES OVER THE REGION ON TUESDAY. CANADIAN HIGH PRESSURE WILL
OVERSPREAD THE REGION ON MONDAY...PLACING VERY COOL AIR AT THE
SURFACE. LOW PRESSURE WILL THEN DEVELOP TO OUR WEST MONDAY
NIGHT...CAUSING LOW LEVEL MOISTURE TO MOVE UP THROUGH OKLAHOMA.
DRIZZLE AND LIGHT RAIN IS LIKELY TO DEVELOP IN THE EARLY MORNING
HOURS TUESDAY...WITH TEMPERATURES NEAR OR JUST BELOW FREEZING. LIGHT
ACCUMULATIONS OF ICE ON ROADS AND EXPOSED SURFACES WILL BE
POSSIBLE...ESPECIALLY TO THE NORTH OF A LINE FROM HOLLIS TO EL RENO
TO STILLWATER.
TEMPERATURES WILL CLIMB ABOVE FREEZING DURING THE DAY...AND
DRY...GUSTY WEST WINDS WILL INCREASE THE DANGER OF WILDFIRES IN FAR
WESTERN OKLAHOMA AND WESTERN NORTH TEXAS. WINDS WILL SHIFT TO THE
NORTHWEST...AND INCREASE IN SPEED WHEN A STRONG FRONT ARRIVES
TUESDAY EVENING. SOME VERY STRONG OR EVEN DAMAGING WIND GUSTS MAY
OCCUR BEHIND THIS FRONT. IN ADDITION...FALLING TEMPERATURES MAY
CAUSE LIGHT RAIN TO CHANGE BACK TO FREEZING RAIN OR SNOW OVER
NORTHERN OKLAHOMA TUESDAY EVENING. AND WIND CHILL READINGS ARE
EXPECTED TO DROP TO BETWEEN ZERO AND 20 DEGREES ABOVE ZERO
THROUGHOUT THE REGION BY WEDNESDAY MORNING.
THE NEXT SCHEDULED HAZARDOUS WEATHER OUTLOOK WILL BE ISSUED BY 5 AM
MONDAY.
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