A deep low pressure center will bring more moisture to the West through the end of the week. The mountains will see big snowfall accumulations once again, needing a yardstick in some areas to measure totals by the weekend. Winter Storm Warnings remain in effect for seven states across the West.
Temperatures will be warm enough in parts of Arizona and California for rain. Along the west slopes of the Sierra, rainfall totals could approach 5″. As the heavy rain falls on the snow pack, flooding is possible as Flash Flood Watches have been issued.
An active Jet Stream will dive slightly farther south than previous storms. This will push snow and rain into the Southwest. The strong upper level energy will help to support the heavy areas of rain and snow.
As the cold front and low pressure center pushes southward, snowfall totals will increase on Thursday in the Southwest. Snow will spread from the Sierra, Wasatch and Rockies to the mountain ranges in Arizona and New Mexico.
For WeatherNation: Meteorologist Mace Michaels