- Heavy rains are expected to ease in southwestern B.C. before another possible record-setting storm arrives Tuesday.
- Some parts of the region saw up to 120 millimetres of rain.
- A flood warning was issued for the Coquihalla River and Sumas River including Sumas Prairie. For all flood, advisories see here.
- On Sunday evacuation orders were issued for properties in the Huntingdon Village area of Abbotsford and in the Thompson-Nicola Regional District. For more on evacuation alerts and orders see here.
- Highways in B.C. continue to be affected by previous damage or new flooding.
- Officials in Abbotsford are anxiously watching the Nooksack River in Washington State.
British Columbia officials are urging vigilance as the province faces more storm activity, adding to the already dire flood situation.
Although rains from the current storm system began to ease Sunday afternoon another atmospheric river is set to bring rain to southern B.C. overnight on Monday.
Warning preparedness meteorologist Armel Castellan said experts continue to assess the possible impacts of the third storm, as there is still uncertainty about what it could bring.
“Certainly the cumulative impacts of successive storms are of concern,” he said, urging “maximum caution and vigilance” as the week progresses.
“While the second of the three large storms is now upon us, we need to continue to be vigilant,” B.C. Public Safety Minister Mike Farnworth said during a news conference on Sunday. “Hope for the best, and prepare for the worst.”.
Some areas of the province could receive up to 200 millimetres in total rainfall in the next week, according to meteorologist Matt Di Nicolantonio.
The downpour has led to treacherous driving conditions on the province’s damaged highways.
On Sunday, new evacuation orders were issued for properties in the Huntingdon Village area of Abbotsford, southeast of Metro Vancouver, in the Fraser Valley, while RCMP was going door-to-door in the Petit Creek and Spius Creek area south of Lytton along Highway 1 to tell people to evacuate their homes.
Regions in the southern Interior and low-lying areas north of Pemberton, B.C., were placed on evacuation alert on Saturday afternoon as a flood watch was issued for the Similkameen and Tulameen rivers.
Evacuation alerts mean residents must be ready to leave their homes at a moment’s notice. Evacuation orders mean residents should leave immediately.
Precautionary road closures put in place Saturday for Highway 3 from Hope to Princeton, Highway 1 in the Fraser Canyon, Highway 1 from Popkum to Hope and Highway 99 from Lillooet to Pemberton remained in place.
In Abbotsford, 100 millimetres of rain fell over the weekend, snow is melting at higher elevations due to rising temperatures, and more rain is forecast for the coming days.
The city’s mayor, Henry Braun, held a news conference Sunday afternoon and said that water that had risen above a dike on the Nooksack River in Washington State could soon reach Abbotsford.
He said sandbag barriers which residents, workers and members of the Canadian Armed Forces have scrambled to erect will not be enough to stop it.
“It’s gonna go over Main Street, and then it’s headed here. There’s nothing to stop it after that,” Braun said.
Braun said water levels in the Sumas Prairie lake bottom have risen 75 millimetres since Saturday.
On Sunday B.C.’s River Forecast Centre issued a flood warning for the Coquihalla River and the Sumas River, which include Sumas Prairie and the surrounding area.
A flood warning means river levels have exceeded banks and that flooding in adjacent areas will occur.
The Fraser Valley region has been under a flood watch since Friday, as has most of southwest B.C., including regions of Vancouver Island.
High streamflow advisories were also issued by the River Forecast Centre for the Upper Columbia and East Kootenay regions in the Interior.
The community of Merritt in the province’s Interior still has no functioning sewage or water treatment system after floods two weeks ago.
All of the city’s 7,500 residents were forced to evacuate from their houses after an evacuation order on Nov. 15.
Re-entry to the city is being done on a phased basis. Currently, residents in phases 1 to 3 of the plan can return.
‘I hope this is not the norm,’ Merritt’s mayor says
Mayor Linda Brown said the community was bracing for the next storm to arrive on Tuesday, with many of the returning residents under a boil water advisory.
“The vulnerable won’t be back as fast,” she said. “We have homes that people will never come back to. “We have to look at rapid housing [and] government-assisted rapid housing to be able to bring them back to some form of normality.”
The city’s residents were forced to evacuate due to wildfires in the summer and now, just months later, have been evacuated due to floods.
“I hope this is not the norm, and I hope it is not on a regular basis,” Brown said. “Because I don’t think we could survive year after year after year if this was the case.”
Farnworth said the province is prepared to use the Alert Ready system to get information out to residents in southwestern B.C., who could be affected by flooding.
Anyone placed under an evacuation order should leave the area immediately.
To find an evacuation centre close to you, visit the Emergency Management B.C. website.
Evacuees are encouraged to register with Emergency Support Services online, whether or not they access services at an evacuation centre.
Road conditions can be checked at DriveBC.