Area Forecast Discussion
Issued by NWS Tulsa, OK

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000
FXUS64 KTSA 202148
AFDTSA

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TULSA OK
348 PM CST SAT DEC 20 2014

.DISCUSSION...
ANOTHER CLOUDY DAY FOR TSA CWA. CLOUDS LIKELY ANCHORED
FOR ANOTHER COUPLE OF DAYS BEFORE SUN ARRIVES ON 24TH.
MAX / MIN TEMP ADJUSTMENTS MADE FOR MAINLY CLOUDY SKY.

H500 WAVE  FROM WESTERN CANADA WILL DROP INTO NORTHERN
&  CENTRAL PLAINS OVER THE NEXT COUPLE OF DAYS AS WEST
COAST H500 RIDGE AMPLIFIES. ELONGATED TROUGH - CENTRAL
CANADA TO TEXAS BY TUESDAY.  THIS EVOLUTION WILL BRING
CHANCE PRECIP MONDAY THROUGH TUESDAY.  ECMWF WRF GFS &
DIFFER SOME WITH THIS SYSTEM. OF PARTICULAR CONCERN IS
HOW FAST  COLD AIR WILL ARRIVE IN EASTERN OK NORTHWEST
AR TUESDAY. IF THE COLD AIR ARRIVES EARLY THE TAIL END
OF PRECIPITATION LATE TUESDAY/TUESDAY NIGHT WOULD BE A
WINTRY MIX. GIVEN THAT THE BEST CHANCE FOR PRECIP WILL
BE TUESDAY WITH  HIGH TEMPS IN LOW/MID 40S DID NOT PUT
POSSIBLE WINTRY MIX IN UNTIL TUESDAY NIGHT. AND...THEN
JUST SLIGHT CHANCE EXTREME EASTERN OK AND NORTHWEST AR.

RIDGE MOVES ACROSS THE REGION CHRISTMAS DAY WHILE NEXT
UPPER WAVE DIVES FROM PACIFIC NORTHWEST TO THE ROCKIES.
CHRISTMAS DAY  PROMISES TO OFFER LOTS OF SUN WITH HIGH
TEMPERATURES ABOVE NORMAL IN THE 50 TO 60 DEGREE RANGE.

COLD FRONT WILL SWEEP THROUGH CHRISTMAS NIGHT / FRIDAY
LEAVING BELOW AVERAGE TEMPS NEXT WEEKEND.           GW



&&

.PRELIMINARY POINT TEMPS/POPS...
TUL   41  50  46  54 /   0  10  10  20
FSM   40  50  43  56 /   0  10  10  30
MLC   42  50  47  57 /  10  10  10  20
BVO   37  48  43  53 /   0  10  10  20
FYV   36  46  42  53 /   0  10  10  30
BYV   35  47  41  53 /   0  10  10  30
MKO   40  49  44  55 /   0  10  10  20
MIO   39  48  43  52 /   0  10  20  30
F10   40  49  45  56 /  10  10  10  20
HHW   42  50  45  60 /  10  10  10  10

&&

.TSA WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
AR...NONE.
&&

$$

SHORT TERM...30
LONG TERM....21




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