The latest update from the National Weather Service describes this week’s expected storm as a “crippling and potentially historic blizzard."

A blizzard warning is in effect from 1 p.m. Monday to midnight Tuesday night.

Potential hazards include heavy snow and blowing snow, with blizzard conditions, snow accumulations of 20 to 30 inches...with higher amounts possible.

Snowfall rates are predicted to be 2 to 4 inches late Monday night into Tuesday morning, with winds north 30 to 40 mph, gusting up to 55 to 65 mph, the strongest across eastern Long Island.

Temperatures are expected to be in the lower 20s.

The National Weather Service says light snow will begin Monday morning...with accumulations of 1 to 3 inches possible by the evening rush.

Snow will pick up in intensity Monday evening, with the heaviest snow and strongest winds from about midnight Monday night into Tuesday afternoon.

The National Weather Service advises there may be “life-threatening conditions and extremely dangerous travel due to heavy snowfall and strong winds...with whiteout conditions. Secondary and tertiary roads may become impassable. Strong winds may down power lines and tree limbs.”