Another storm is on its way, keeping the activity level of storms high. This one actually won't take a much different track than our last storm. But there is one key difference. Upper atmosphere warmth. Take a look at the expected temperature about 5000 feet above us tomorrow at 11AM.
That red line is key. Its the 32 degree line. Despite it not being over Boston, it represents too Too much warm air above us that won't support snow. BUT, it is obviously very cold outside, it has been all day. That cold air is actually stuck at the surface. Here are expected surface temps at the same hour.
Still below freezing across most of the area. Although an increase of 15+ degrees in under 12 hours is a big temperature swing. Nevertheless, this is the perfect recipe for wet snow, turning to rain and ice, depending on location. The change to rain is quick the closer to the coast you get. Further inland and in higher elevations, that cold air holds in place longer, creating an icing situation.Timing is tough to pin down on this one.
-It will start as light snow for pretty much everyone by sunrise. Then its time to watch the rain/snow line push northwestward from late morning on.
-Snow won't be the storyline on this storm. Boston and surrounding areas might get a sloppy couple of inches (yes i realize the sexual innuendo i just created). The story will be the ice. Ice is the worst thing to get. And ice on tree limbs that are already very stressed is bad news bears.
- Totals are all over the place, but northwest areas of MA stand to get the worst. Things are going to be very sloppy in Boston, especially with at least 7 inches of snow, and bigger snow piles, all around the area.
After that, watch out for the flash freeze.Arctic temperatures are going to be our new best friend starting on Friday and lasting into next week.
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