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Displaying AFOS PIL: AFDEWX Received: 2014-12-22 12:00 UTC
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763 FXUS64 KEWX 221200 AFDEWX AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 AM CST MON DEC 22 2014 .AVIATION... STRONG SOUTHEASTERLY FLOW ABOVE THE SURFACE HAS RESULTED IN IFR/LIFR CIGS THIS MORNING. ALSO SEEING VIS REDUCED IN FOG WITH THE WORST VIS AT DRT. CONDITIONS SHOULD IMPROVE BY AROUND NOON AS WEST WINDS MOVE IN. A COLD FRONT WILL MOVE THROUGH THE REGION TUESDAY BRINGING NORTH WINDS BY MID-MORNING. && .PREV DISCUSSION... /ISSUED 408 AM CST MON DEC 22 2014/ SHORT TERM (TODAY THROUGH TUESDAY)... FOG COVERS MOST OF SOUTH CENTRAL TEXAS EARLY THIS MORNING. A DEEPENING TROUGH MOVING OUT INTO THE PLAINS WILL CAUSE SOUTHWEST TO WESTERLY LOWER LEVEL WINDS. LOW CLOUDS AND FOG ERODE FROM WEST TO EAST BY MID MORNING ALLOWING TEMPERATURES TO RISE TO WELL ABOVE AVERAGE THIS AFTERNOON. A PRE-FRONTAL TROUGH MOVES ACROSS OUR AREA TONIGHT...THEN A COLD FRONT EARLY TUESDAY WITH AN UPPER LEVEL TROUGH LATE TUESDAY. THE FRONT AND UPPER TROUGH GENERATE UPWARD MOTION OF SUFFICIENT MOISTURE TO PRODUCE SLIGHT CHANCE TO CHANCE POPS FOR SHOWERS NORTHEAST OF A ROCKSPRINGS TO NEW BRAUNFELS TO KARNES CITY LINE. RAINFALL WILL BE LIGHT WITH AMOUNTS LESS THAN ONE QUARTER INCH. COLD ADVECTION AND CLOUD COVER WILL DROP TEMPERATURES TO BELOW AVERAGE ON TUESDAY. BREEZY CONDITIONS WILL DEVELOP IN THE WAKE OF THE FRONTAL PASSAGE DUE TO TIGHT PRESSURE GRADIENT. LONG TERM (TUESDAY NIGHT THROUGH SUNDAY)... THE BREEZY CONDITIONS CONTINUE INTO TUESDAY NIGHT KEEPING THE TEMPERATURES FROM BOTTOMING OUT...ONLY FLIRTING WITH THE FREEZING MARK IN SOME LOW LYING AND WIND SHELTERED HILL COUNTRY SPOTS WEDNESDAY MORNING. BELOW AVERAGE TEMPERATURES CONTINUE CHRISTMAS EVE THROUGH CHRISTMAS MORNING. MORE WIDESPREAD FREEZING TEMPERATURES ARE EXPECTED CHRISTMAS MORNING AS THE SURFACE HIGH SETTLES OVER THE AREA...BUT STILL MAINLY IN LOW LYING SPOTS IN THE HILL COUNTRY AND ALONG THE ESCARPMENT. THE SURFACE HIGH MOVES OFF TO THE EAST ALLOWING A SOUTHERLY FLOW AND TEMPERATURES WARMING TO ABOVE AVERAGE FOR CHRISTMAS AFTERNOON. A ZONAL FLOW ALOFT PREVAILS FRIDAY THROUGH SUNDAY WITH THE MODELS DELAYING THE NEXT STRONG COLD FRONT UNTIL FRIDAY NIGHT INTO EARLY SATURDAY. HAVE WARMED FRIDAY AFTERNOON TEMPERATURES ONLY SLIGHTLY. SOME MODELS ARE SHOWING RAIN CHANCES. HOWEVER...MOISTURE WILL BE LIMITED AND HAVE NOT INCLUDED POPS. BELOW AVERAGE TEMPERATURES ARE EXPECTED SATURDAY AND SUNDAY WHICH WILL LIKELY CONTINUE BEYOND THIS FORECAST THROUGH THE NEW YEAR. && .PRELIMINARY POINT TEMPS/POPS... AUSTIN CAMP MABRY 73 49 56 38 56 / 0 10 30 - 0 AUSTIN BERGSTROM INTL AIRPORT 72 47 57 37 56 / 0 10 20 - 0 NEW BRAUNFELS MUNI AIRPORT 74 49 58 38 57 / 0 10 10 - 0 BURNET MUNI AIRPORT 71 46 54 36 53 / - 10 30 0 0 DEL RIO INTL AIRPORT 75 48 59 37 59 / 0 - - 0 0 GEORGETOWN MUNI AIRPORT 70 47 55 36 54 / 0 10 30 - 0 HONDO MUNI AIRPORT 75 46 61 35 59 / 0 - 10 0 0 SAN MARCOS MUNI AIRPORT 72 48 57 36 56 / 0 10 20 - 0 LA GRANGE - FAYETTE REGIONAL 73 52 57 38 56 / - 10 30 - 0 SAN ANTONIO INTL AIRPORT 75 50 59 38 58 / 0 - 10 - 0 STINSON MUNI AIRPORT 75 50 59 38 59 / 0 - 10 - 0 && .EWX WATCHES/WARNINGS/ADVISORIES... NONE. && $$ MESOSCALE/AVIATION...05 SYNOPTIC/GRIDS...04