Winter rainfall slightly below average

If you think Victoria has been subjected to an unusually high level of rainfall this winter, you’re mistaken.

If you think Victoria has been subjected to an unusually high level of rainfall this winter, you’re mistaken.

The actual measured precipitation is slightly below average for the October 2015 to mid-March period, but several high intensity episodes of precipitation managed to flood basements and otherwise overwhelm storm water run-off systems.

“It’s due to something called atmospheric river events,” said University of Victoria Associate Professor David Atkinson. He said that veritable rivers of atmospheric moisture are picked up over the equator due to the high energy (of sunshine) over those regions. This prompts the storage of very moist air, which, if drawn toward the North American landmass by a combination of strong pressure systems, has the effect of causing substantial, prolonged rainfall events.

“I have one colleague who likens it to turning a fire hose on the West Coast,” said Atkinson.

According to Atkinson, another reason for the high intensity rainstorms this year has been the shifting of pressure systems along the coast, which has drawn storm moisture in from pressure systems formed over the ocean.

“We generally get the remnants of storms that form around Alaska. That results in lower intensity rainfall events of longer duration,” he said. “But this year we’ve seen storm systems move in from the Pacific and even down the California coast.”

Victoria’s 705 mm of annual rainfall is about half of what Vancouver receives every year.

 

Just Posted

New Coast Guard ship crashes into Ogden Point breakwater

‘It is fairly unprecedented that it would happen’

Sidney group offers free, fun ‘trishaw’ bike rides to seniors

Physical disability and mental obstruction no barrier to trips around town

Student Voice: Vic astronomer tracking the New Horizons path

Local astronomer part of team studying New Horizons spacecraft

Second non-stop flight added between Prince George and Victoria

Starting June 23 flyers will have the choice of flying in the morning or afternoon

The shores will not rock in 2019

Atomique Productions announce Rock the Shores festival will not return in 2019, future is uncertain

Victoria hosts ‘Ultimate Hockey Fan Cave’

The hockey cave was recently featured on a Netflix special

Calgary captain has 3 points as Flames torch Canucks 3-1

Giordano leads way as Alberta side cracks 100-point plateau

Fire crews battle large blaze at Courtenay hostel

Courtenay Fire Chief Don Bardonnex said nobody was injured

1,300 cruise ship passengers rescued by helicopter amid storm off Norway’s coast

Rescue teams with helicopters and boats were sent to evacuate the cruise ship under extremely difficult circumstances

B.C. university to offer first graduate program on mindfulness in Canada

University of the Fraser Valley says the mostly-online program focuses on self-care and well being

Province announces $18.6 million for B.C. Search and Rescue

The funding, spread over three years, to pay for operations, equipment, and training

Late-season wave of the flu makes its round in B.C.

BC Centre for Disease Control reported 50 per cent jump in flu cases in first weeks of March

Tofino’s housing crisis causing some to seek shelter at the local hospital

Tofino’s housing crisis is pushing the town’s ‘hidden homeless’ population into the forefront.

Sentencing judge in Broncos crash calls for carnage on highways to end

Judge Inez Cardinal sentenced Jaskirat Singh Sidhu to eight years

Most Read