A blizzard watch is in effect for all of Long Island from late Monday night through Tuesday evening. The National Weather Service in Upton issued the blizzard watch on Saturday afternoon, predicting that a northeaster could bring 12 to 18 inches of snow.
The storm comes after one on Friday brought 4 to 7 inches to the East End and what is continuing to be a frigid weekend with temperatures in the teens overnight on Saturday.
The blizzard is expected to begin after 11 p.m. Monday. Temperatures during the storm are expected to be in the upper 20s. The weather service also predicted strong and gusty winds in addition to snow, which could mean hazardous travel with visibility less than a quarter of a mile at times and the potential for power outages. Winds will be out of the northeast at 20 to 30 miles per hour, with gusts of 40 to 50 miles per hour.