Mild and pleasant weather correlated with upper ridging in place for the west will face some disruption during the course of this week as another closed low pivots across the region and steadily diminishes heading eastward.

This disturbance should impact BC through Tuesday before intensifying as it pushes into AB and SK during the Wednesday-Thursday timeframe. The strength of the low and the potential associated precip could be memorable based on the latest available info.

This is the interpretation of events from the 12z GFS @ hour 72 / 96 / 120:


This seems as if it will only be a temporary break in the overall pattern as another ridge builds in from the Eastern Pacific once the storm has passed.

The expected storm along the east coast has come to fruition as spring surrenders to renewed winter weather for NL & Labrador.

Satellite view of the system:


This unwelcome guest has dropped substantial amounts of snow in some areas, along with rain and wind.

The latest summary from EC is available now.