The cold upper level trough retreats to the north as high pressure builds in, allowing winds to shift from northwest to southwest by Sunday.

Saturday remains cold.  Some mid level clouds early, then mostly sunny, the some clouds late afternoon.  High 42.

A strong southwesterly wind brings mild temperatures and sunny skies Sunday.  It will be breezy.  High about 55.

As mentioned earlier this week, model continuity remains poor, so forecast specifics remain uncertain beyond a few days out.  One forecast aspect seems to have consistency — expect large swings in temperatures every few days. 

The models had some trouble with today’s forecast and the general impression has been that the specifics of the coming week’s forecast details are somwhat low confidence.

That said, a deep low pressure is expected to move up the Appalachians giving us heavy rains and warm temperatures on Wednesday.  A cold front moves through Thursday and another very cold Arctic outbreak is in store for next weekend.

With the Arctic airmass in place, an Alberta clipper and another low pressure system brings another chance of snow  late next weekend into next week.

A warm front will move through this evening with cloudiness. Clouds break Saturday morning as the front moves to our north.  A southwesterly flow will bring very mild temperatures and mostly sunny skies by mid day. High temperatures may exceed 60 degrees on Saturday. It will be breezy as well.

Update Sat 1 PM: An upper air disturbance with moisture at 300 mb has caused mid and upper level cloudiness to develop today.  Sometimes referred to as a ‘dirty high pressure system’.  Not sure if we’ll get the sunshine that was expected this afternoon.

For Sunday, a cold front will pass through early morning with some cloudiness and skies will clear by noon. Temperatures will remain mild for most of the day with mostly sunny skies and high temperatures about 56.   Temperatures will become cooler towards evening.

Update Sat PM: A secondary cold front moves through Sunday evening, so mostly cloudy Sunday afternoon.   It looks like we’ll have some showers late Sunday afternoon.

The outlook for next week – an amplified jetstream pattern redevelops over the eastern US  and the models are hinting at some sort of storm development in the Tuesday through Thursday  timeframe. The details of the storm development are unclear at this time, but expect the mid week period to be very active.