A Major Pattern reversal is underway across Western Canada. Cold air will descend from Northern Canada beginning Friday, coinciding with an extended period of heavy snowfall.
Our forecasting team will be closely monitoring the progression a major winter storm beginning Thursday evening. The Winter Storm isn’t expected to bring heavy snowfall rates, but rather an extended period of light-moderate snow over the next 48 hours.
The heaviest snowfall totals are expected through the Rockies; across British Columbia and Alberta. Where in excess of 50cm of snow is expected to fall. Even major cities, such as Edmonton won’t escape the wintry weather. With 30 or more centimeters projected to fall, over the next couple days.
It is common for summer temperatures to peak between 30-35 degrees Celsius during the summer months in the Southern Interior. Coupled with long stretches of dry, sunny weather, and low relative humidity.
Fire Rating July 17th, 2018. Natural Resources Canada.
Hot and dry weather will be the story through the beginning of this week with the Southern Interior reaching the low 30s. In Kamloops, an air quality statement, together with a heat warning have been issued. A respite from the heat is expected mid-week with the arrival of upper-level trough.
As early as Thursday & Friday, cooler temperatures will spread across the Interior. A chance of rain and cloudier conditions will be welcomed in some communities – but others who see lightning could see new fires.
A trough of low pressure is determined to impede coastal regions of British Columbia, including the city of Vancouver and vicinity.
Snow will begin Friday morning and continue through the majority of the day across the aforementioned province. Snow will further linger in the form of flurries through early Saturday morning, bringing in light accumulations to what accumulated as a majority, through the day on Friday.
The city of Vancouver and vicinity will receive accumulating snow and lengthier commutes should be expected.
Regions along the immediate coast will receive the lower-end of the amounts listed in the “legend”, while regions further inland will receive amounts synonymous to the higher-end of the amounts depicted.
Gusty winds across the entire region will be of concern for localized blowing snow.
Be prepared for rapidly accumulating snow and deteriorating conditions across coastal regions and major Metropolitan regions.