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John Homenuk

Tuesday Briefing: Interior winter storm on the way

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Good morning and Happy Tuesday! We’re continuing our Daily Briefing series, where we provide free public weather updates for various parts of the country. Thanks for reading! A significant winter storm is expected to develop later today and Wednesday across the Northeast states, particularly in the interior areas, where snowfall amounts upwards of 6″ are possible.

The airmass in place ahead of the storm system is not particularly cold, and without any high latitude blocking there is no mechanism to hold in a cold high pressure to the north. All of this will aid in warm air surging northward as the storm develops, allowing precipitation to quickly change to rain along the coast. Inland, and in the higher elevations, colder air will hang on a bit longer and more impactful snow and wintry precipitation is likely.

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Miguel Pierre

Monday Briefing: Winter Storm in the Northeast Wednesday

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Happy Monday! High pressure from the west, builds into the Northeast today, behind our departing storm system on Sunday. Mostly sunny skies and breezy conditions are expected.  Cold air advection with northwest winds behind a cold front early this morning will keep temperatures nearly steady in the mid-upper 30s most of the day. A tighter pressure gradient could cause winds to gust up 30 to 35 mph at times.

Skies will remain clear and winds diminish early tonight. Then some mid-high clouds will be increasing, as a weak upper-level disturbance approaches from the west. Overnight low temperatures will range from the upper teens to middle 20s in many areas. However, some of the Interior Valleys and Pine Barrens may drop into the lower to middle teens, with some radiational cooling occurring, before more clouds arrive.

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Steven Copertino

UPDATE: Significant Winter Storm Aimed At The East Coast, Dangerous Cold Friday & Saturday

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Good evening! 

Today has been yet another in an impressive stretch of days below-freezing across the majority of the Northeast! Conditions were mainly calm, with patches of mid to high level clouds racing from southwest to northeast due to a strong/developing jet stream over the Northeast. An area of high pressure has been quickly moving offshore, which has shifted winds to the south over portions of the Mid Atlantic and southern New England. This subtle change was enough to bring in temperatures in the middle to upper 20’s for most of the NYC metro area, with 30’s further to the south. As we head into the night, we expect cloud cover to gradually increase as the large area of low pressure over the western Atlantic Ocean begins to expand substantially to the west and ushers in some mid-lower level clouds. Southerly low level flow will keep conditions a bit warmer than the past few nights, but expect lows to stay in the lower to middle 20’s over the immediate NYC metro, with upper teens likely to the north and west. Things should stay dry for most of the area up until midnight, when some initial light to moderate snow may begin to nose into the southern portions of New Jersey and Pennsylvania.

QUICK LINKS: Latest Snowfall Forecast | Latest Video Discussion

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John Homenuk

Weekend winter storm threat lingers in Northeast

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We’ve discussed for a few days the threat for wintry weather this coming weekend – and while the evolution of the forecast has changed in the atmospheres mid and upper levels, the threat for wintry weather still does exist. With that being said, forecast model guidance continues to offer little help in regards to consistency and confidence as we move forward. A complicated situation is set to evolve across the Great Lakes and Northeast States this weekend.

An initial disturbance is still likely to drop southward into the Great Lakes, well from the northwest, associated with Pacific energy. It will undercut a piece of what is known as the “tropospheric polar vortex” – or the polar vortex that exists in our troposphere, where we experience most of our weather. The interactions between these two disturbances will be critical, and forecast model guidance is struggling with exactly how the two of them will behave.

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