FXUS64 KOUN 151105
AFDOUN

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
500 AM CST TUE DEC 15 2009

.AVIATION...
BANDS OF MID CLOUDS WILL GRADUALLY SHIFT SOUTH OF THE AREA DURING 
THE LATE MORNING WITH MAINLY CLEAR SKIES. SOME GUSTS WILL OCCUR WITH 
THE NORTH WINDS FOR A WHILE THIS MORNING BEFORE DECREASING THIS 
AFTN. SFC WINDS WILL SHIFT BACK TO THE SOUTH OVERNIGHT. 

30

&&

.PREV DISCUSSION... /ISSUED 331 AM CST TUE DEC 15 2009/

.DISCUSSION...
ANOTHER COLD CANADIAN/ARCTIC AIRMASS WILL CONT TO SETTLE SOUTH OVER 
THE AREA TODAY WITH TEMP STRUGGLING TO WARM EVEN WITH A SIGNIFICANT 
AMOUNT OF SUNSHINE. MOST LOCALES WILL NOT MAKE IT OUT OF THE 30S 
TODAY. THIS SHALLOW BUT VERY COLD AIRMASS WILL BEGIN TO SLIDE EAST 
TONIGHT AND WEDNESDAY WITH SOUTH WINDS RETURNING TO THE AREA. TEMPS 
ON WED SHOULD BE NEAR SEASONAL NORMS WITH A FEW DEGREES WARMER ON 
THU AHEAD OF NEXT COLD FRONT.

THIS NEXT FRONT WILL MOVE SOUTH THROUGH THE AREA THU NIGHT. AIRMASS 
BEHIND THIS FRONT WILL INITIALLY BE MAINLY OF PACIFIC ORIGIN. 
HOWEVER BY SATURDAY... AS AN UPPER DISTURBANCE MOVES OUT OF THE 
NORTHERN ROCKIES THROUGH THE CENTRAL AND SOUTHERN PLAINS... IT WILL 
PULL MORE CANADIAN AIR SOUTH INTO THE AREA. THIS WILL PRODUCE EVEN 
COOLER TEMPS OVER THE WEEKEND. THIS WAVE MAY ALSO PRODUCE A BIT OF 
PRECIP FRIDAY NIGHT IN THE FORM OF EITHER SOME LIGHT RAIN OR PERHAPS 
SOME LIGHT SNOW. DOES NOT APPEAR TO BE SIGNIFICANT. 

ANOTHER BRIEF WARMING MAY OCCUR EARLY NEXT WEEK BEFORE ANOTHER 
ARCTIC COLD FRONT PUSHES SOUTH OUT OF CANADA TOWARD THE SOUTHERN 
PLAINS JUST IN TIME FOR CHRISTMAS.

&&

.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK  36  23  51  32 /   0   0   0   0 
HOBART OK         40  20  49  31 /   0   0   0   0 
WICHITA FALLS TX  42  24  50  32 /   0   0   0   0 
GAGE OK           35  19  54  22 /   0   0   0   0 
PONCA CITY OK     32  21  45  25 /   0   0   0   0 
DURANT OK         41  26  48  33 /   0   0   0   0 

&&

.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&

$$

32/30