Achi news desk-
As expected, cooler overnight temperatures in the region prompted overnight ice advisories and brought snow to areas west of Calgary.
Precipitation associated with a frontal system continued to produce rain early Tuesday with temperature (mostly elevation related) determining the rain versus surface snow.
As of 6:30 am, communities such as Banff and Crowsnest Pass were reporting temperatures of 0 C and it was -2 C in Jasper.
A cool overnight from Tuesday into Wednesday could mean a similar start on Wednesday with frost possible and mixed precipitation in higher or lower areas.
This cooler weather in our area is one of the contributing factors to the heat dome across Central Canada and the Northeastern United States.
The Omega block funnels warm air in from the Gulf and around a larger high pressure system. On either side are anchoring lows – including those that pull cooler air into southern Alberta.
This block is not as balanced as the one that affected the Prairies in 2021, so it is expected to break down and move east.
When that happens (later Wednesday) southern Alberta will return to warmer weather with daytime highs and overnight lows tending to be above season until early next week.
For Tuesday, there is a slight chance of scattered showers or some isolated thunderstorms across the region – including in Calgary. But the chance of any serious development remains unlikely.
Sunshine will return starting on Wednesday, and outside of a small chance of rain on Friday – it should stick around for the next five to seven days.
