The latest model runs suggest that the arctic front that will move through Thursday will be associated with a less amplified jet stream than originally predicted. That makes the likelihood of cyclogenesis less probable.
That said, some light snow is still a possibility Thursday afternoon.
Of greater interest is still the possibility of some snow late Sunday, although the energy may split into a secondary low too far north to truly affect us. Still needs to be watched.
Tues PM: There is now little indication of low pressure development along the frontal boundary for Sunday, but it wouldn’t take much for something to develop. An active pattern remains with us.
Sunday will become cloudy during the afternoon. Highs in the mid to upper 40s.
The weather change for the end of the week again looks interesting with the chance of light snow Thursday and the possibility of a more significant snow in the Sunday-Monday timeframe. Either way, a more active and cold pattern developing.
Sunday 2pm -The latest model runs continue to be less definitive about low pressure developing along the strong cold front and there is plenty of model disagreement with speed and cyclogenesis. The Thursday through Sunday timeframe needs to be watched for storm development.
This weekend will be controlled by high pressure and a northwesterly flow of seasonably cold air.
Both Saturday and Sunday will have sunny skies and breezy conditions.. Highs will be in the upper 40s Saturday and around 50 on Sunday.
This coming week will feature another rainstorm on Tuesday and a significant amplification of the jet stream for later in the week and next weekend. Temperatures will become unseasonably cold and depending on the jet configuration, there’s the first chance of light snow, although the GFS has backed off of the snow for Thursday.
Other than the cold weather, the models have not been especially consistent with precipitation in the new pattern. The pattern will be cold, active and interesting.