Monday Storm Outlook: Big Storm To End The Week

Good morning. We will have a big storm to impact the region from Thursday night through Saturday morning. The question is what will the precipitation type be. This storm will be a rain maker initially but does have the chance to deepen enough to pull in colder air aloft and cause snow to break out in spots. The details behind this process are still very unclear.

Storm approaches from the west on Thursday night..

Warm air ahead of this storm means no snow to start...

Since there will be blocking high pressure to the north, the storm is forced to redevelop off the coast Friday...

This is where things get interesting. Depending on the location and strength of this redevelopment will determine how much cold air gets pulled into this storm. You can see the model trying to show snow breaking out as it pulls away and deepens Friday...

 And by Friday night...

I am very confident this storm pulls in cold air to snow aloft. The issue is the surface and layers just above the surface are going to be very warm. That means it will take a strong storm to "pull" that cold air aloft down to cause snow.


So where can the change over to snow occur. I think this map below gives the best idea of where accumulating snow can fall...

Bottom line: If you live in the Mtns of New England, it will snow from this. If you live in southern New England and the northern Mid-Atlantic there is a chance it can snow towards the end of the storm but the jury is still out.

Since this is such a dynamic set up I will have a video out tonight to break down in further detail.