Community Notice – Weather Advisory November 26, 2021

LAST UPDATED: November 26, 2021 at 3:00 pm

A rainfall warning is in effect for Saturday November 27 through to Sunday November 28 for Metro Vancouver, Fraser Valley, Howe Sound, Sea to Sky, and Sunshine Coast. 

Rainfall amounts will vary from about 60 millimeters in Metro Vancouver to 100 millimeters closer to the mountains. Squamish may see up to 120 millimeters of rain. 

Temperatures will also be warmer which means there is a greater risk of snowmelt and run-off. 

Another weather system is forecasted to reach British Columbia next Tuesday and Wednesday, November 30 to December 1. Squamish Nation will continue to provide updates as they become available.

The public is advised to:  

Stay alert for water pooling on roads and washouts.  

Stay clear of the fast-flowing rivers and potentially unstable riverbanks. 

Stay informed of current flood advisories.

Assistance is available for Members both on- and off-reserve who have been affected by these extreme weather events (flooding, landslides, or power outage.)  

Please contact David Harrison, Manager, Emergency Planning & Response:

Phone: 604-374-2687 

The River Forecast Centre is issuing the following:
High streamflow advisory  
  • North Coast
  • Central Coast
  • Vancouver Island
Flood watch
  • Sea‐to‐Sky including areas around Squamish, Whistler and Pemberton
  • Sunshine Coast
  • Howe Sound
  • North Shore Mountains
  • Lower Mainland including areas along the Fraser Valley and areas around Hope
Flood warning  
  • Sumas River including Sumas Prairie and surrounding area

A High Streamflow Advisory means that river levels are rising or expected to rise rapidly, but that no major flooding is expected. Minor flooding in low-lying areas is possible.

A Flood Watch means that river levels are rising and will approach or may exceed bankfull. Flooding of areas adjacent to affected rivers may occur.

A Flood Warning means that river levels have exceeded bankfull or will exceed bankfull imminently, and that flooding of areas adjacent to the rivers affected will result.