High winds and heavy rain will batter Vancouver Island this afternoon and tonight.

High winds and heavy rain will batter Vancouver Island this afternoon and tonight.

Brace yourselves – the worst is on its way

Public notice from Stephen Watson at BC Hydro

  • Oct. 15, 2016 11:00 a.m.

The following is a public notice from Stephen Watson at BC Hydro, issued Saturday at 3 p.m. local time:

 

This is the storm we’ve been focused on all week. And while it has shifted south slightly into Washington State it will bring some heavy rain to the upper Puntledge River watershed. The downstream river flows today and particularly Sunday morning may be slightly higher than Friday’s storm. The storms will be very significant and could provide extremely high flow rates in the Browns and Tsolum rivers.

The forecast calls for heavy rain to begin in the afternoon and continue through the rest of Saturday and into early Sunday. Very strong southeast winds will accompany this storm late this afternoon through this evening.  Early Sunday morning the rain will turn to showers.

The forecast is for about 75 mm of rain to fall in the upper watershed. The challenge is the winds and rain will be coming in from the southeast and will be hitting the north side of the watershed where the Browns and Tsolum headwaters are located. This means they could get very high. There will also be some ocean storm surge pushing up the estuary.

 

 

Entering these three storms the Comox Lake reservoir was well positioned and we began spilling high volumes of water Wednesday night. Discharge levels have been at around 110 m3/s during the low tide and down to 35 m3/s during key high tides with higher Browns and Tsolum river flows. Given the current downstream water conditions are low and will not be reacting to the storm until this evening, we are ramping down the discharge from the dam to about 45 m3/s for the 5:34 pm high tide. However, given the potential concern for this storm and storm surge, we will only increase the discharge after the high tide to about 75 m3/s versus a higher amount. Given the good reservoir storage availability at the start of these storms, and our ability to spill water at key times throughout, it has allowed our operations be very conservative for this upcoming localised downstream flood risk. We are particularly concerned for the high tide at  6:19 am on Sunday. Really, from about midnight to about 10 am Sunday there are potential flood risks. We will also reduce our spill from the dam for that high tide to about 35 m3/s. We will do so earlier if needed.

 

 

On Friday, downstream river flows came about 30-50 cm from some localised flooding in the Courtenay area. The forecast is telling us that this will be much tighter or closer come Sunday early morning. Of course forecasts can change.

 

 

BC Hydro continues to communicate regularly with the City of Courtenay, Comox Valley Regional District, Comox Valley Emergency program, and Emergency Management BC.

 

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

Comox Valley RCMP had access to 20 Street blocked off between Cousins and Choquette avenues as they conducted a raid of a house on the block. Photo by Terry Farrell
Comox Valley RCMP raid Courtenay problem house, several arrests made

Neighbours have reached out to media on several occasions with complaints about the property

A vial of Oxford-AstraZeneca COVID-19 vaccine is pictured at a family doctor office, Thursday, Feb. 25, 2021 in Paris. THE CANADIAN PRESS/AP -Christophe Ena
Tentative COVID-19 vaccine site chosen in the Comox Valley

B.C. is moving into Phase 2 of its COVID-19 mass immunization plan

Cumberland is considering downtown densification proposals, and with that comes questions around parking, among other things. Photo by Mike Chouinard
Water bottling ban, parking key changes for Cumberland zoning

Bylaw on amendments still need adoption following March 2 hearing

Arzeena Hamir, working her booth at the Comox Valley Farmers Market. LUSH Valley was recognized last month as a partner of the year by the BC Association of Farmers’ Markets. Photo by Bill Jorgensen
LUSH Valley recognized for collaboration with Comox Valley Farmers’ Market

They won Partner of the Year award by the BC Association of Farmers’ Markets

Chelsea Harry was last seen Feb. 21. Photo via Comox Valley RCMP
Comox Valley RCMP seeking help locating a missing woman

Missing person last seen in Courtenay on Feb. 21

B.C. Health Minister Adrian Dix and provincial health officer Dr. Bonnie Henry head for the B.C. legislature press theatre to give a daily update on the COVID-19 pandemic, April 6, 2020. (B.C. government)
B.C. nears 300,000 COVID-19 vaccinations, essential workers next

564 new cases, four deaths, no new outbreaks Thursday

Cannabis bought in British Columbia (Ashley Wadhwani/Black Press Media)
Is it time to start thinking about greener ways to package cannabis?

Packaging suppliers are still figuring eco-friendly and affordable packaging options that fit the mandates of Cannabis Regulations

Municipal Affairs Minister Josie Osborne speaks in the B.C. legislature, March 4, 2021. (Hansard TV)
B.C. Liberals, NDP sing in harmony on local election reforms

Bill regulates paid canvassers, allows people in condo buildings

The intersection of Melrose Street and Third Avenue. (ELENA RARDON / ALBERNI VALLEY NEWS)
Suspect in custody after two pedestrians struck in Port Alberni hit and run

RCMP asking for video footage, credit witnesses for quick arrest

The Courtenay Fire Department hopes to start a new recruit training program in mid-2021, pending Provincial Health Orders. Scott Stanfield photo
Courtenay Fire Department gets creative

Due to public health orders resulting from COVID, the Courtenay Fire Department… Continue reading

(National Emergency Management Agency)
No tsunami risk to B.C. from powerful New Zealand earthquake: officials

An 8.1 magnitude earthquake shook the north of New Zealand Thursday morning

(AP Photo/Richard Vogel, File)
Pandemic stress, isolation key factors as to why Canadians turned to cannabis, alcohol

Study found that isolation played key role in Canadians’ substance use

Grand Forks’ Gary Smith stands in front of his Church of the Flying Spaghetti Monster float. Photo: Submitted
Grand Forks’ Flying Spaghetti Monster leader still boiling over driver’s licence photo

Gary Smith, head of the Church of the Flying Spaghetti Monster of B.C., said he has since spoken to lawyers

Most Read