999 ABUS30 KPHX 232338 SWSAZ LATE AFTERNOON ARIZONA WEATHER SUMMARY NATIONAL WEATHER SERVICE PHOENIX AZ 430 PM MST TUE DEC 22 1998 .SYNOPSIS... COLD AIR WILL REMAIN OVER THE AREA THROUGH CHRISTMAS EVE AS A DRY WEAKENING LOW PRESSURE SYSTEM MOVES SLOWLY EAST ACROSS THE AREA. A WARMING TREND WILL TAKE PLACE CHRISTMAS DAY AND SATURDAY AS A HIGH PRESSURE SYSTEM FROM THE PACIFIC MOVES ACROSS THE SOUTHWESTERN UNITED STATES. HIGH CLOUDINESS FROM THE PACIFIC IS EXPECTED TO SPREAD ACROSS THE AREA SATURDAY NIGHT INTO SUNDAY...OTHERWISE MOSTLY CLEAR NIGHTS AND SUNNY DAYS ARE FORECAST THROUGH MONDAY. .SUMMARY... CLEAR SKIES WERE REPORTED STATEWIDE TODAY WITH THE EXCEPTION OF SOUTHEAST ARIZONA WHERE CONSIDERABLE HIGH CLOUDS SPREAD INTO THE AREA EARLIER THIS AFTERNOON. OTHERWISE...A WEAK DRY LOW PRESSURE SYSTEM COVERED ARIZONA TODAY RESULTING IN AFTERNOON TEMPERATURES ABOUT 10 TO 12 DEGREES BELOW NORMAL. AT 4 PM FLAGSTAFF WAS 31 DEGREES...THE SOUTH RIM OF THE GRAND CANYON WAS 35...KINGMAN 39...AND PHOENIX AND TUCSON 53. THE STORM TRACK OVER ARIZONA IS FORECAST TO RETREAT NORTHWARD THE NEXT SEVERAL DAYS RESULTING IN MOSTLY SUNNY SKIES AND A SLOW WARMING TREND CHRISTMAS DAY AND THE WEEKEND. ***************************************** THE NWS PHOENIX FORECAST OFFICE WILL CEASE ISSUING THE ARIZONA WEATHER SUMMARY...PHXSWSAZ...ON DECEMBER 24. THE LAST SCHEDULED ISSUANCE OF THE ARIZONA WEATHER SUMMARY WILL BE DECEMBER 23...1998 ...AT 430 PM MST. IF YOU HAVE ANY QUESTIONS WRITE TO...ATTN MIC - NWSFO PHOENIX... PAB 500...P.O. BOX 52025...PHOENIX...AZ...85072-2025.