NWS Forecast Office Los Angeles, CA

A cold winter storm is expected to impact the area on Sunday and Monday. Overall, the storm is expected to be on the weak side. Most areas will received one quarter inch or less of rainfall although areas in the San Gabriel Mountains could receive between one half and one inch of rainfall. The main issue with this storm will be snow levels. Snow levels on Sunday will drop to around 4000 feet, but will drop even further Sunday night and Monday, down to the 2500 to 3000 foot range. So, mountain areas can expect some accumulating snowfall. Additionally, the low snow levels will likely result in some hazardous winter driving conditions for the Grapevine area Sunday night and Monday.