PRECIP TIMELINE: @LiveDoppler7 is tracking a developing low pressure system that drops in from north.  Brings us spotty showers &amp; Sierra snow this weekend.  Much needed 1st winter storm for #SoCal but, risk of mudslides.  #SanFrancisco #BayArea #CAwx #Sierra #forecast
#SoCal #SanFrancisco #BayArea #CAwx #Sierra #forecast