Building a good snow storm is like making a cake.  You need the right ingredients and they should be mixed in the right order. As luck would have it, this is going to be a delicious cake, or storm ;)

 A strong arctic high is well positioned to pump cold air into the backside of a developing storm that will track up along the eastern seaboard.  The position of the arctic high should hold the rain/snow line well offshore. It will also keep the heaviest snow over southern NB, PEI and NS. 

That storm won’t be acting along. Some of the global computer models are coming to a little better consensus in regards to the double-barrel storm system.  The current indication is that the northern and southern jet stream energy will phase along the coast, leading to a significant storm that could bring heavy snow and strong winds to parts of New England and then up into the Maritimes later Friday into Saturday.

It looks like parts of eastern New England will experience blizzard conditions late Friday into the early morning hours of Saturday.  The storm will rapidly intensify Friday night as the energy finally comes together and the low moves out over the Gulf Stream. Snow will spread across Nova Scotia, southern New Brunswick and PEI Friday night and continue into Saturday.

So how much can we expect? I’d go with less than 5 cm of northern NB;  10-15 cm for Fredericton with higher amounts in the SE – perhaps as much as 30 cm.  You’ll likely get at least 40cm across PEI and a solid 30-40 cm of Nova Scotia.  With strong winds wrapping around the storm, we’ll also get blizzard conditions for Nova Scotia, PEI and even southern New Brunswick starting early Saturday.

That’s how it looks from here….

Chief Meteorologist

Cindy Day