Expires:201812312145;Remove:201812312145;072366 WWUS45 KPSR 312037 WSWPSR URGENT - WINTER WEATHER MESSAGE National Weather Service Phoenix AZ 137 PM MST Mon Dec 31 2018 AZZ534-537-538-312145- /O.EXP.KPSR.WW.Y.0002.000000T0000Z-181231T2100Z/ Aguila Valley-Northwest Valley-Tonopah Desert- 137 PM MST Mon Dec 31 2018 ...WINTER WEATHER ADVISORY WILL EXPIRE AT 2 PM MST THIS AFTERNOON ABOVE 2500 FEET... Scattered light snow showers or flurries are possible the remainder of the afternoon. However, no additional accumulations are anticipated. $$