Today’s rain turned snow into slush, big puddles and lots of slop and with the departure of the rain and clearing later tonight temps will fall back into the 30s. I do have concern for refreezing but most locals inside of 128 should avoid icy issues in the morning it towns north and west of 128 that will see problems. In fact, many in Northern Worcester County and Southern NH haven’t warmed much at all today and icing will continue to be a problem come tomorrow morning. Aside from the ice early tomorrow, you are going to love Tuesday…lots of sun with mild temps in the 40s. Wednesday will also a quiet day with calm winds and fading sunshine with a high near 40.
The sub-tropical jetstream remains very active with ample moisture streaming out of the Gulf of Mexico, several shortwaves from the northern branch of the jetstream will be sliding across the Great Lakes trying to link up with the southern moisture. If they successfully meet, big snows can happen like we had over the weekend…if they don’t then smaller events or even complete misses can occur. This week the focus is on two chances for snow with the first coming Wednesday night into Thursday morning. An area of low pressure will develop along the Gulf Coast and get guided to the Mid-Atlantic by the southern jetstream…this will bring rain and snow to DC, Baltimore and Philly. From there, the track is a little more difficult to determine…some models have quite a bit of interaction with the northern energy others do not. At this point it is safe to say that Southern New England will get grazed by this storm system…thus some snow is likely especially the farther south you go closer to the track. This will be a fast moving system so we are only talking about a few inches and current thinking is for 2-4″ in SE MA and 1-2″ up through Boston with very little if anything along the NH border. Snow will be gone first thing Thursday.
After a relatively mild week, mid-Winter cold will snap back into New England over the weekend. Typically, when you get into these airmass changes big storms can arise and this weekend shows a lot of potential. A digging trough will give rise to an area of low pressure off the East Coast…this storm will get very large and pumped full of moisture from the sub-tropical jet. Timing will be everything with this one…how quickly it matures will dictate how much if any snow we see.
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