Meteorological Winter Begins

The video explains the two definitions of winter: meteorological, which runs from December 1st to the end of February, and astronomical, based on equinoxes and solstices. It highlights the impact of La Nina on US weather, causing variations in precipitation and temperature across different regions. The northwest and Great Lakes are expected to be wetter, while the southeast and southwest will be drier and warmer, potentially worsening drought conditions in the western US.

What are the expected weather conditions for the northwest and Great Lakes regions this winter?

What could be the consequences of less snowpack in the western United States?