Premium: Winter weather impacts in Northeast US this week
A dynamic storm system is expected to track through the Northeast United States later this week, bringing with it the opportunity for some frozen precipitation, particularly on the front end as the storm develops. This will be especially true in the interior and higher elevations, before warm air changes precipitation over to rain. Nearer to the coast, mostly rain is expected, although a brief burst of frozen precipitation isn’t out of the question in the suburbs and higher elevations there as well.
The storm system will be operating and gaining steam from “warm air advection” in the mid levels of the atmosphere. Moisture surging toward the Northeast US on Thursday will provide increasing lift for precipitation as warm air moves into the atmospheres mid levels. The atmosphere will quickly become too warm for frozen precipitation near the coast, but colder air will hang on a bit longer in the interior. This will lead to a complicated forecast.