On Sunday night and Monday we deal with a coastal low tracking N along the E coast and pushing N and upper level low approaches form the W. Sunday will be a fair and mainly sunny day, and a little warmer than Saturday with highs upper 30s to mid 40s. In generally looks like we have an early week system, bringing rain and some snow, mainly to the mountains, and then nothing significant until late in the week into next weekend. 500 MB flow, outside of the times troughs move through will generally be zonal as well. With a few days punching up to a little above normal as well. Thus we probably stay near seasonal norms, but trending a little to the cool side. This will allow some surges of colder air in from around the Arctic circle, but also allow some weak ridges to build in between. While there is a sense of a mean +PNA pattern across NOAM and environs, it never really locks in during the course of the next week. This increase in clouds will again lead to sub optimal radiational cooling conditions with lows in the teens to 20s. As the high continues to slide south east of the area, modest warm air advection will lead to an increase in clouds Saturday night. High pressure will maintain dry conditions Saturday night. Winds will be lighter than today and will shift out of the SW Saturday afternoon as the center of the high slides south of the area. Despite abundant sunshine, it will be a cool day with highs ranging from the 20s north to 30s south. High pressure will bring fair weather Saturday while the center of the high slides across southern New England. Short Term - 6am Saturday Morning Through Saturday Night Therefore, conditions will be sub optimal for radiational cooling while a colder a drier airmass moving in will still lead to a cold night with lows in the teens to single digits across the far north. There will be enough of a gradient to keep winds elevated tonight to limit decoupling. Strato Cumulus clouds that has streamed across areas south of the mountains will dissipate this evening leading to mostly clear skies tonight while upslope clouds will linger in the mountains. At the surface a cold front is pushing offshore this afternoon with high pressure nosing in from the west. Previous discussion.Cyclonic flow aloft will transition will transition to zonal flow into Saturday. Update.Minor changes to reflect latest observational trends. The system exits Monday night with cooler weather and mountain snow showers into the middle of next week. This system will bring widespread precipitation with primarily rain south of the mountains while northern areas will see periods of wintry precipitation. A frontal system will approach late Sunday with a secondary low forming over southern New England Monday morning. High pressure builds in tonight and will allow for fair weather Saturday through the day Sunday. Wed Night.W Winds Around 10 Kt With Gusts Up To 20 Kt. Wed.Nw Winds 10 To 15 Kt With Gusts Up To 20 Kt. Tue Night.W Winds 10 To 15 Kt With Gusts Up To 20 Kt. Tue.W Winds 10 To 15 Kt With Gusts Up To 25 Kt. Mon Night.W Winds 15 To 20 Kt With Gusts Up To 25 Kt. Mon.Se Winds 10 To 15 Kt, Becoming W In The Afternoon. Sun Night.S Winds 5 To 10 Kt, Becoming Se 10 To 15 Kt After Midnight. Sat Night.Sw Winds 10 To 15 Kt With Gusts Up To 20 Kt, Diminishing To 5 To 10 Kt After Midnight. Sat.Nw Winds 5 To 10 Kt With Gusts Up To 20 Kt, Becoming Sw In The Afternoon. SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EST SATURDAY Rest Of Tonight.Nw Winds 10 To 15 Kt With Gusts Up To 25 Kt.
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