Area forecast discussion from the National Weather Service
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE NORMAN OK 407 PM CST WED DEC 26 2012 .DISCUSSION... MUCH QUIETER DAY WEATHERWISE ACROSS THE SOUTHERN PLAINS AFTER OUR BOUT OF WINTER WEATHER YESTERDAY. AS SURFACE HIGH PRESSURE HAS ROOTED ITSELF ACROSS THE NATIONS MID-SECTION...A BROAD DECK OF SCT TO BKN STRATUS HAS CONTINUED TO STREAM ACROSS MUCH OF THE PLAINS. EVEN WITH A FEW BREAKS OF SUNSHINE ACROSS OK AND WESTERN NORTH TX...TEMPS HAVE STRUGGLED TO CLIMB OUT OF THE 20S THIS AFTERNOON. OVERALL...THE SYSTEM THAT BROUGHT US WINTRY PRECIP YESTERDAY CONTINUES TO SPIN EAST ALONG THE OHIO RIVER VALLEY...WITH WV IMAGERY PLACING THE CENTER OF THE UPPER LEVEL LOW NEAR THE KY/WV BORDER...WHILE SNOW AND FZRA CONTINUES TO FALL FROM IN TO WV AND AS FAR NORTH AS MI. FOR TONIGHT...THE SURFACE RIDGE OF HIGH PRESSURE WILL CONTINUE TO SHIFT TO THE EAST...WITH LIGHT NORTH WINDS SLOWLY SHIFTING OUT OF THE SOUTH/SOUTHEAST THROUGH SUNRISE TOMORROW. OVERNIGHT LOWS WILL DROP INTO THE UPPER TEENS TO LOWER 20S. FOR TOMORROW THROUGH FRIDAY...AS THE UPPER LEVEL RIDGE EXITS TO OUR EAST...OUR NEXT TROUGH OF LOW PRESSURE WILL MOVE ACROSS THE CENTRAL PLAINS. A BROAD SURFACE LOW ASSOCIATED WITH THIS TROUGH WILL MOVE EASTWARD AND SOUTH/SOUTHEAST WINDS WILL INCREASE AHEAD OF A WEAK COLD FRONT ACROSS OK AND WESTERN NORTH TX...ALLOWING TEMPS TO FINALLY CLIMB ABOVE FREEZING...FROM THE UPPER 30S TO MID 40S. OVERNIGHT...INCREASING DEWPOINTS ACROSS THE RED RIVER VALLEY COMBINED WITH ANY REMAINING SNOW COVER AND LIGHT SOUTH WINDS WILL RESULT IN POSSIBLE FOG...DENSE AT TIMES ACROSS FAR SOUTH CENTRAL OK...AS WELL AS SOME FREEZING FOG WHERE OVERNIGHT TEMPS REMAIN BELOW FREEZING. AS FOR PRECIP...THERE WILL BE A SLIGHT CHANCE FOR RAIN FRIDAY ACROSS FAR SOUTH CENTRAL OK WITH THE PASSAGE OF THE FRONT. FOR THE WEEKEND...UPPER LEVEL RIDGING WILL RETURN...WITH DRY WEATHER AND A BRIEF WARM UP...WITH HIGHS IN THE MID TO UPPER 40S TO NEAR 50 ACROSS WESTERN NORTH TX. BEYOND SUNDAY...LONG RANGE SOLUTIONS FROM THE GFS AND ECMWF DIVERGE SIGNIFICANTLY. BOTH THE 00Z AND 12Z ECMWF CONTINUE CUTOFF AND DIG A PAC NW TROUGH SOUTH ALONG THE PAC COAST MONDAY...WHILE THE 12Z GFS INTRODUCES THE PAC NW TROUGH EASTWARD ACROSS THE INTER-MOUNTAIN WEST AS AN OPEN WAVE. THROUGH NEW YEARS...BOTH OFFER VERY DIFFERENT PRECIP SOLUTIONS AS THE TROUGH APPROACHES THE CENTRAL U.S...WITH THE ECMWF BEING THE WETTER OF THE TWO. UNTIL ANY CONFIDENCE CAN BE HAD BETWEEN THE GFS...ECMWF...AND GFS ENSEMBLE MEMBERS...WILL CONTINUE TO RUN WITH SLIGHT CHANCE POPS ACROSS THE REGION FROM EARLY MONDAY THROUGH WEDNESDAY. JTK && .PRELIMINARY POINT TEMPS/POPS... OKLAHOMA CITY OK 20 41 22 34 / 0 10 10 10 HOBART OK 18 41 18 34 / 0 0 0 0 WICHITA FALLS TX 22 49 25 40 / 0 10 0 10 GAGE OK 15 37 10 31 / 0 0 0 0 PONCA CITY OK 21 42 16 34 / 0 10 0 0 DURANT OK 23 44 34 42 / 0 10 10 20 && .OUN WATCHES/WARNINGS/ADVISORIES... OK...NONE. TX...NONE.
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