Garbage bags filled with soaked personal belonging line the back of homes on McRae Avenue in Mission after Saturday morning’s flash flood.

Intensity of rain factor in flood

Mission received 13.3 mm of rain between 5 and 6 a.m. on Saturday. That’s more than one-third of the total amount of precipitation that day.

A massive amount of rain in a short period of time contributed significantly to Mission’s flooding problem on Saturday morning.

More than 12 homes in the McRae Avenue area were damaged by flooding and residents continue to clean up and assess the damage caused by water overflowing a clogged culvert.

And while it may not seem to have been an overly large amount of precipitation, Environment Canada meteorologist Matt MacDonald said it wasn’t the total rainfall amount that was impressive, rather it was the intensity.

According to the Bradner Road weather station, the closest to Mission, 20.2 mm of rain fell on Friday and 35.1 mm on Saturday.

MacDonald called that a “reasonable amount” but nothing close to the March daily record of 73.6 mm

The significant factor, according to MacDonald, was the rainfall rate, which he said typically causes the most impact.

Mission received 13.3 mm of rain between 5 and 6 a.m. on Saturday. That’s more than one-third of the total amount of precipitation that day.

“‘That’s pretty significant. You’re getting close to tropical downpour type intensity.”

He said that high rate is a once in every five years occurrence.

“Culverts, streams and gutters only have a certain capacity and it just greatly exceeded that, I’m assuming,” said MacDonald regarding the flooding.

Mission Mayor Randy Hawes said he believes the culvert would have handled the water flow had it not been for a discarded Christmas tree and an old chair that were swept along and plugged the grate.

“It wasn’t a blockage because of negligence,” said Hawes, adding that all of the culverts were inspected in February.

 

 

Just Posted

Bad behavour to lead to expulsion at Abbotsford council

New rules lay out how a member can be booted from a meeting

More extreme weather beds needed in Mission

Council allocates another $5,000 to help keep people safe, warm and dry

Input sought for road works for Maple Ridge

Consultation on Haney Bypass upgrades

Trial begins for man charged with 2010 murder of Mandy Johnson

Langley single mom was fatally shot while in vehicle in Abbotsford

KPU campuses go smoke-free starting Jan. 21 – and that includes vaping

‘We didn’t make this decision lightly’ says prez of the Surrey-based institution

B.C. cougar kitten rescued after mother struck by vehicle

Conservation Officers find home for young kitten found dehydrated and frostbitten near Williams Lake

B.C. out of the running for Amazon’s next headquarters

Toronto is the only Canadian city left in the running despite the province backing Metro Vancouver’s bid for new Amazon headquarters

B.C. hockey player nominated for Hobey Baker Award

Myles Powell is a forward at Rochester Institute of Technology

Post interest rate hike debt tips

What to do about your debt and mortgages after the interest rate hike

Foreign workers sleeping in Alberta Burger King basement

Alberta Health Services said its inspectors found foreign workers sleeping in the basement of the Lethbridge restaurant

Court application halts release of bread price-fixing documents

Bread price-fixing documents won’t be unsealed Thursday, Loblaw says

Pharrell and N.E.R.D to headline NBA All-Star halftime show

11-time Grammy winner Pharrell and his hip hop-rock band N.E.R.D. will headline the halftime show at the 2018 NBA All-Star game in Los Angeles

Heritage Minister wants zero tolerance for harassment in entertainment industry

Heritage Minister Melanie Joly had two meetings to discuss harassment in the film, TV and theatre worlds

Newly freed Diab wants reforms to Canada’s ‘lousy’ extradition law

French authorities dropped terrorism charges against Hassan Diab who was suspected of taking part in an attack in Paris in 1980

Most Read