Thundersnow in B.C.!

A thunderstorm with snow is called thundersnow and it struck the British Columbia Interior just two days before the start of summer!

An unstable air mass bringing cold air from Alaska is to blame for the rare thundersnow which covered mountainous terrain in the Okanagan Valley with about 10 cm.

Snow fell above 1500 metres with a snow/rain mix down to 1100 metres and a chilly rain at sea level.

About 10 cm of snow was also expected in the Alberta Rockies from a similar system.

Major flooding in B.C.

BC FloodingMay 11

Flooding in Grand Forks, BC, 11 May 2018 (Regional District of Kootenay Boundary)

A combination of heavy rain, warm temperatures and rapid snowmelt from the mountains has created major flooding in Interior British Columbia.

About 4,000 residents have been evacuated from their homes mainly in the Regional District of Kootenay Boundary.

At the confluence of two rivers – the Granby and the Kettle – the city of Grand Forks has been hardest hit where firefighters have rescued dozens by boat.

The province has issued evacuation orders or alerts in six other regional districts and eight First Nations.

Officials say this spring’s flooding is worse than the devastating floods of 1948.