FXUS64 KOUN 261751
AFDOUN
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NORMAN OK
1151 AM CST SAT DEC 26 2009
.AVIATION...
26/18Z TAF ISSUANCE...VFR CONDITIONS EXPECTED TO PREVAIL AT ALL
TERMINALS. CEILINGS NEAR/JUST ABOVE MVFR MAY AFFECT NORTHWEST
OKLAHOMA BRIEFLY THIS AFTERNOON...BUT MORE WIDESPREAD NEAR KPNC
TOWARD LATE THIS AFTERNOON INTO TONIGHT. WEST-NORTHWEST WINDS WILL
BE FAIRLY GUSTY THROUGH 22Z THIS AFTERNOON ACROSS ALL BUT
KLAW/KSPS.
&&
.PREV DISCUSSION... /ISSUED 1027 AM CST SAT DEC 26 2009/
DISCUSSION...
BRISK NORTHWEST WINDS CONTINUE OVER THE NORTHERN HALF OF OKLAHOMA...
STILL ASSOCIATED WITH THE MAJOR WINTER STORM THAT BROUGHT US THE
SNOW A COUPLE OF DAYS AGO. THE SLIGHT DOWNSLOPE EFFECTS FROM THESE
WINDS MAY HELP OFFSET LACK OF SUNSHINE IN THE NORTHWEST. IF THIS
HAPPENS AS EXPECTED... OUR CURRENT FORECAST LOOKS GOOD. THE WINDS
ARE EXPECTED TO DIMINISH THIS AFTERNOON... AS IS THE CLOUD
THICKNESS... SO THE DELICATE BALANCING ACT WILL CONTINUE TO MAKE
THE TEMPERATURE FORECAST DIFFICULT IN OUR NORTHERN COUNTIES.
AT THIS TIME... NO CHANGES ARE PLANNED TO THE FORECAST... BUT
LATER TRENDS MAY FORCE AN UPDATE OR TWO.
PREV DISCUSSION... /ISSUED 413 AM CST SAT DEC 26 2009/
AVIATION...
VFR CONDITIONS ARE EXPECTED THROUGH 271200. BRIEF PERIODS OF LIGHT
SNOW MAY OCCUR UNTIL 262200 IN AREAS BETWEEN KAVK AND KPNC.
PREV DISCUSSION... /ISSUED 259 AM CST SAT DEC 26 2009/
DISCUSSION...
NORTHERN OKLAHOMA MAY SEE SOME FLURRIES OR BRIEF PERIODS OF LIGHT
SNOWFALL TODAY ASSOCIATED WITH THE WRAP-AROUND ELEMENTS OF THE
LARGE UPPER LOW WHICH CONTINUES TO MOVE SLOWLY NORTH THROUGH THE
UPPER MIDWEST. THE MILDLY-WARMING WEST WIND OF FRIDAY WILL
CONTINUE TODAY, BUT THE WIND IS EXPECTED TO MOVE MORE NORTH SUNDAY
WHEN THE SURFACE RIDGE BUILDS TOWARD OKLAHOMA FROM THE NORTHWEST.
IN BETWEEN OVERNIGHT TEMPERATURES TONIGHT MAY BE DIFFICULT TO
FORECAST, BUT GUIDANCE GIVES NUMBERS LOWER THAN THIS MORNING GIVEN
LESS WIND SUNDAY MORNING. A MID-LEVEL, SMALL UPPER-RIDGE IS
EXPECTED TO ALLOW MOSTLY SUNNY SKIES INTO TUESDAY WHEN AN UPPER
LEVEL SYSTEM APPROACHES FROM THE WEST. THE GFS AND ECMWF SUGGEST
THAT THE MAIN INFLUENCE WILL BE TO TO THE SOUTH OF OKLAHOMA.
SOUTHWEST LOWER-LEVEL WIND FORECASTS PRESENTLY RESULT IN A CHANCE
FOR RAIN SOUTH AND SNOW NORTH WEDNESDAY. COLDER AIR FOLLOWS
THURSDAY INTO THE WEEKEND. LOW POPS ARE IN THE FORECAST FOR FRIDAY
ASSOCIATED WITH A CLIPPER-STYLE TROUGH MOVING QUICKLY NORTH AND
EAST OF OKLAHOMA.
&&
.PRELIMINARY POINT TEMPS/POPS...
OKLAHOMA CITY OK 39 19 33 20 / 10 10 0 0
HOBART OK 40 21 39 20 / 0 0 0 0
WICHITA FALLS TX 41 23 41 22 / 0 0 0 0
GAGE OK 37 15 38 15 / 10 0 0 0
PONCA CITY OK 34 16 34 14 / 20 10 0 0
DURANT OK 43 25 39 25 / 0 10 0 0
&&
.OUN WATCHES/WARNINGS/ADVISORIES...
OK...NONE.
TX...NONE.
&&
$$
23/11
