EDISON - Another spring snowstorm threatens to slow the morning commute in parts of the Garden State tomorrow.

News 12 New Jersey meteorologist James Gregorio says a winter storm watch will take effect tonight for Sussex, Warren and Morris counties.

Gregorio says up to 6 inches of snow is possible in northwest New Jersey. Snow will begin to fall during the overnight hours and is expected to taper off by Thursday.

Other parts of the state are expected see more rain than snow. However, temperatures will be colder.