Snow and rain may help firefighters douse the 7,500-acre acre Topaz Ranch Estates fire today.The forecast for Holbrook Junction calls for a snow level of 5,800 feet before 11 a.m. and then a chance of rain.Firefighters have a line a third of the way around the 7,500-acre Topaz Ranch Estates fire, despite high winds and dry conditions.Most of the improved line is on the northwest side of the fire, but a bulldozer line has been built along the southern flank of the fire to protect homes in TRE and Smith Valley.Assistant Incident Commander Steve Goldman said crews managed to get …