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000 FXUS64 KOUN 251603 AFDOUN AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 1003 AM CST WED NOV 25 2009 .UPDATE... A COLD FRONT CURRENTLY STRETCHES FROM AROUND ELK CITY TO KINGFISHER AND PERRY...AND IS FORECAST TO CONTINUE TO MOVE SOUTHEASTWARD THROUGH THIS AFTERNOON. WIND SPEEDS OF 15 TO 20 MPH ARE BEING REPORTED BY MESONET STATIONS BEHIND THE FRONT...WITH HIGHER GUSTS. THESE WINDS ARE SOMEWHAT STRONGER THAN INITIALLY FORECAST...AND POST FRONTAL WIND SPEEDS HAVE BEEN INCREASED THROUGH THIS AFTERNOON. OTHERWISE...CURRENT TEMPS ALONG WITH COLD ADVECTION FORECAST TO CONTINUE INTO THE AFTERNOON PROMPTED A MINOR REDUCTION IN HIGH TEMPERATURES IN NORTHERN OK. MINOR EDITS HAVE BEEN MADE TO SKY GRIDS AS WELL. TAYLOR && .PREV DISCUSSION... /ISSUED 518 AM CST WED NOV 25 2009/ AVIATION... OTHER THAN A FEW CIRRUS CLOUDS ACROSS NORTHERN OKLAHOMA... EXPECT CLEAR SKIES AND UNLIMITED VISIBILITIES THROUGH THE PERIOD AS HIGH PRESSURE COVERS THE SOUTHERN PLAINS. A MINOR FRONT WILL PASS THROUGH ALL TAF SITES DURING THE DAY TODAY... SLIGHTLY SHIFTING THE WIND DIRECTION AND RAISING SPEEDS FOR THE REST OF THE DAYTIME HOURS. LIGHT AND VARIABLE WINDS ARE EXPECTED AFTER SUNSET. PREV DISCUSSION... /ISSUED 416 AM CST WED NOV 25 2009/ DISCUSSION... A LARGE AREA OF SURFACE HIGH PRESSURE WILL REMAIN IN CONTROL OF THE WEATHER ACROSS THE SOUTHERN PLAINS UNTIL THIS WEEKEND. AS A RESULT... SUNNY DAYS AND CLEAR NIGHTS WILL BE THE RULE... WITH MILD TEMPERATURES AND LIGHT WINDS. A WEAK FRONT WILL PASS THROUGH THE SOUTHERN PLAINS TODAY... DOING LITTLE MORE THAN CAUSE A TEMPORARY SHIFT IN WIND DIRECTION. WINDS WILL BEGIN TO INCREASE ON FRIDAY... AS THE NEXT STORM SYSTEM BEGINS TO APPROACH FROM THE WEST. THIS STORM SYSTEM WILL BRING A CHANCE OF RAIN TO MOST OF OKLAHOMA AND NORTH TEXAS BY LATE IN THE WEEKEND... AND EARLY NEXT WEEK. THE GREATEST CHANCES... AS USUAL... WILL BE ACROSS THE SOUTHEAST HALF OF OUR FORECAST AREA. AS THE MAIN STORM SYSTEM MOVES AWAY FROM US ON MONDAY AND TUESDAY... RAIN CHANCES WILL DIMINISH AGAIN. AT THIS TIME... IT APPEARS THAT TEMPERATURES WILL BE A LITTLE TOO WARM FOR FROZEN PRECIPITATION... BUT THERE IS STILL A POTENTIAL FOR SNOW MIXING WITH THE RAIN IF MODELS SHIFT FEATURES A LITTLE FARTHER SOUTH AGAIN. AFTER ANOTHER PERIOD OF MILD WEATHER AROUND THE MIDDLE OF NEXT WEEK... BOTH THE GFS AND ECMWF PULL A RATHER COLD CANADIAN AIRMASS SOUTH INTO THE SOUTHERN PLAINS... PROBABLY COLDER THAN ANY WE HAVE SEEN SO FAR THIS SEASON. BUT... THAT IS BEYOND THE RANGE OF THIS FORECAST. && .PRELIMINARY POINT TEMPS/POPS... OKLAHOMA CITY OK 59 33 58 35 / 0 0 0 0 HOBART OK 60 31 62 35 / 0 0 0 0 WICHITA FALLS TX 66 33 65 37 / 0 0 0 0 GAGE OK 55 23 64 29 / 0 0 0 0 PONCA CITY OK 54 31 56 32 / 0 0 0 0 DURANT OK 62 36 62 37 / 0 0 0 0 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...NONE. TX...NONE. && $$ 03/22