For the third time since March began, a nor'easter is forming off the coast. Here's the latest of what you need to know.

Forecast

The consensus is that the effects of this one won't rival those of its predecessors in terms of snow, winds, and disruption. "More of a glancing impact," is how Jared Klein, senior forecaster at the National Weather Service in Mount Holly, put it. The storm is expected to begin as rain Monday evening before changing over to snow late at night or during the early morning hours of Tuesday. A winter weather advisory has been issued starting at 8 p.m. for all of New Jersey north of Burlington County and Northeastern Pennsylvania along the Delaware River north of  Bucks County. Accumulations are expected to be less than an inch for most of the Philadelphia region, with one to two inches possible in parts of Burlington and Bucks Counties.  "The Tuesday morning commute will be adversely impacted as snow will probably be in progress through sunrise and all untreated surfaces are expected to be snow covered and slippery," the NWS said. Winds will not be as strong the first storm, ranging from 13 to 18 mph, with gusts as high as 28 mph. After the storm, the weather service said, the weather will still be wintry around these parts. Here's how the forecast discussion puts it: "A colder than normal work week, blustery with periods of flurries and even a sizable snow squall threat Wednesday afternoon."

This is the latest snow projection map from the National Weather Service.
National Weather Service
This is the latest snow projection map from the National Weather Service.

Impacts

The FAA is advising the weather could have an impact on airports from Washington, D.C., to Boston, including Philadelphia International Airport. Check your airline for flight status information.

At this time, there have been no other announcements of any special planning or closures related to the approaching storm. Peco reports that everyone who lost electricity in the last two storms is back online. This summary will be updated as necessary.