HAZARDOUS WEATHER OUTLOOK
Issue Date: 456 PM CST MON DEC 21 2009
Expiration: 500 AM CST TUE DEC 22 2009
...SEVERE AND WINTER WEATHER IMPACTS POSSIBLE WITH MID WEEK STORM
SYSTEM...
THIS OUTLOOK IS FOR NORTHWEST AND WEST CENTRAL ARKANSAS AS WELL AS
MUCH OF EASTERN OKLAHOMA.
.DAY ONE...TONIGHT.
FIRE WEATHER DANGER.
RISK...LIMITED.
AREA...EASTERN OKLAHOMA AND NORTHWEST ARKANSAS.
ONSET...ONGOING...ENDING BY EARLY EVENING.
DISCUSSION...
UNSEASONABLY WARM CONDITIONS...LOW RELATIVE HUMIDITIES...AND
SOUTHERLY WINDS AT 10 TO 15 MPH...WILL CONTINUE TO RESULT IN A
LIMITED FIRE DANGER THREAT THROUGH EARLY EVENING. DECREASING WINDS
AND INCREASED RELATIVE HUMIDITIES WILL LESSEN THE THREAT AFTER
SUNSET.
SPOTTER AND EMERGENCY MANAGEMENT ACTION STATEMENT...
SPOTTER ACTIVATION NOT EXPECTED.
.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.
TUESDAY...THUNDERSTORM POTENTIAL.
WEDNESDAY...SEVERE THUNDERSTORM POTENTIAL...HEAVY RAIN POTENTIAL.
THURSDAY...WINTER WEATHER POTENTIAL...HIGH WIND POTENTIAL.
FRIDAY...HIGH WIND POTENTIAL.
SATURDAY AND SUNDAY...NO HAZARDS.
EXTENDED DISCUSSION...
A POTENT UPPER LEVEL STORM SYSTEM WILL MOVE INTO THE SOUTHERN PLAINS
WEDNESDAY...AFFECTING THE AREA INTO THURSDAY NIGHT. A COLD FRONT
WILL BECOME STATIONARY ACROSS CENTRAL OKLAHOMA WEDNESDAY MORNING.
AREAS OF LIGHT RAIN WITH A FEW EMBEDDED THUNDERSTORMS WILL BE
POSSIBLE AHEAD OF THE BOUNDARY INTO WEDNESDAY AFTERNOON.
AS THE UPPER LEVEL STORM SYSTEM APPROACHES...WIDESPREAD
THUNDERSTORMS WITH LOCALLY HEAVY RAIN WILL DEVELOP LATE WEDNESDAY
AFTERNOON. THE THUNDERSTORM ACTIVITY WILL CONTINUE TO INCREASE IN
COVERAGE AND INTENSITY WEDNESDAY EVENING AS STORMS SWEEP EAST
DURING THE OVERNIGHT HOURS. ALTHOUGH INSTABILITY WILL BE
LIMITED...STRONG WIND FIELDS COUPLED WITH VERY COLD TEMPERATURES
ALOFT INDICATE THE POTENTIAL FOR LARGE HAIL AND DAMAGING WINDS IN
THE STRONGER STORMS ...ESPECIALLY ACROSS SOUTHEAST OKLAHOMA AND
WEST CENTRAL ARKANSAS. IN ADDITION...LOCALLY HEAVY RAINFALL MAY
LEAD TO A FLASH FLOOD THREAT IN SOME AREAS. THE SEVERE THREAT IS
EXPECTED TO END BY THURSDAY MORNING AS THE COLD FRONT PUSHES EAST
OF THE AREA.
BEHIND THE FRONT...MUCH COLDER TEMPERATURES ARE EXPECTED WITH THE
PRECIPITATION CHANGING TO SNOW BY THURSDAY AFTERNOON. DEPENDING ON
THE EXACT TRACK OF THE UPPER LOW...PORTIONS OF NORTHEAST OKLAHOMA
AND NORTHWEST ARKANSAS COULD HAVE A PERIOD OF HEAVY SNOW THURSDAY
AFTERNOON INTO THURSDAY EVENING WITH SNOW ACCUMULATION...MAINLY
NORTH OF HIGHWAY 412. THE WINTRY PRECIPITATION IS EXPECTED TO END
THURSDAY NIGHT AS THE STORM SYSTEM LIFTS TO THE NORTHEAST.
UNSEASONABLY COLD AND WINDY CONDITIONS ARE EXPECTED ON CHRISTMAS
DAY...WITH BELOW NORMAL TEMPERATURES THROUGH THE WEEKEND.
EMERGENCY MANAGEMENT PLANNING STATEMENT...
EMERGENCY MANAGEMENT PERSONNEL ARE URGED TO MONITOR FUTURE FORECASTS
AND STATEMENTS REGARDING THE STORM SYSTEM MID WEEK...AS THE
EXACT TRACK OF THIS STORM SYSTEM WILL CONTINUE TO BE REFINED.
PREPARATIONS TO DEAL WITH THE POSSIBILITY OF SEVERE
WEATHER...FLOODING...AND WINTER WEATHER IMPACTS SHOULD BE READIED.
WWW.SRH.NOAA.GOV/TULSA CONTAINS ADDITIONAL INFORMATION.
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