Discussion: Today’s weaker event is now ending and we can focus exclusively on the higher-impacts of the Wednesday-Thursday system. Not much has changed in the model guidance. We have a surface low tracking in over the coastal Carolinas and wanting
Discussion: Just to recap a little, we’re in a -AO/-NAO/neutral PNA teleconnection pattern. The PV is moving into central-east Canada. The jet is behaving in more of a meridional manner over the US and therefore shortwave disturbances are being moved
Discussion: This discussion is for two separate disturbances expected to occur this coming week. The first is on Monday (Dec 14) and the second Wednesday into Thursday (Dec 16-17). For the first event on Monday, we have a trough anchored
Discussion: The upper jet will make several meridional fluctuations over the next few weeks over NJ. This should allow a few low pressure systems to pass just to the SE of NJ from W to E—putting parts of NJ on
Discussion: I wanted to provide a longer-range outlook today after seeing a few things. The modeled teleconnections, on the Euro Ensembles, are indicating a much stronger -AO/-NAO pattern setting in. The values take a noticeable dive in the Dec 15-18
Discussion: We’re now under the NW flow that occurs in the upper levels on the back of a trough. A very weak upper-level disturbance, and associated surface low in Canada, is going to send a piece of the energy from
Discussion: Much of the state will drop below freezing tonight (Sunday night). The early weekend storm system for NJ went on to bring snow in parts of New England as a decent mid-latitude cyclone. The backside cyclonic flow of that
Discussion: Model guidance indicates a very meridional jet pattern over the next few weeks with ample below-average geopotential height anomalies. At the surface this means colder temperatures and an active pattern. Whether or not one of these systems times with
Discussion: In yesterday’s article we discussed how an Upper Level Low (ULL) in the interior SW US was handing a piece of energy off to the ULL over SE Canada/NE US. This expected transformation of cyclonic energy has not changed.
Discussion: The upper level low/trough that brought Monday’s storm and the current colder conditions is currently lingering over SE Canada and the NE US. There is also an upper level low in the interior SW US trapped under strong W
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