Gov. Phil Murphy declared a state of emergency for New Jersey ahead of the major snowstorm that's set to bring prolonged periods of heavy snow, gusty winds and coastal flooding.

The state of emergency took effect at 7 p.m. Sunday.

"State agencies are ready to respond, and we will use every resource at our disposal to ensure the safety of New Jerseyans," Murphy tweeted Sunday.

State offices will be closed on Monday.

The governor also announced that all six of New Jersey's vaccine megasites will be closed Monday due to the  storm. He says appointments will be rescheduled.

NJ Transit is also announcing suspensions for Monday. All NJ Transit buses, light rail and rail service (except for the Atlantic City rail line) will be temporarily suspended systemwide for the day.

The storm is expected to bring significant snowfall to much of New Jersey, with storm conditions lasting into Tuesday.