Windy weekend – Please prepare for potential power outages!

A series of storms will travel along the BC Coast this weekend. Given the forecast storm trajectories, Environment Canada is anticipated warning level winds from the South Coast up to Haida Gwaii and the North Coast. With a deep low pressure system brewing in the Gulf of Alaska and a strong ridge of high pressure building over Alberta, the resulting pressure gradient will produce strong to extreme outflow winds through the mainland valleys and inlets of the Central and North Coasts.

Moderate rain will also accompany the passage of the storms but is currently expected to remain below warning criteria. Snow levels will hover between 1000 and 1500m along the coast so we are not expecting these storms to produce any snow near sea level. There is however a risk of freezing rain through the North Coast inlets as incoming moisture clashes with cold outflow conditions. A calmer and drier weather pattern is expected beginning Tuesday.

If you have any questions about our preparedness plans for Anacla, please contact Amelia Vos (amelia.v@huuayaht.org) at 1.888.644.4555 / 250.728.3414

Weather Event Impacts:

Potential for tree damage, power outages and disruptions to marine travel.

Weather Event Estimated Start Time and Duration:

Saturday through Monday.

Alert

Confidence Level:

Moderate! There is relatively good agreement between the  various weather models for the general pattern through the weekend. As always, the exact timing and details of each of these storms remains a challenge. Forecast certainty will increase with the approaching storms so please monitor the latest forecasts and warnings as they will most likely change.

Recommendations:

Prepare for potential power outages. The marine community is encouraged to consider alternate plans over the weekend. Monitor forecasts and alerts for updates.

Wind Warning Criteria:

  • North Vancouver Island, Central Coast, North Coast, Haida Gwaii: 90km/h or more for Sustained Winds AND/OR Gusts to 110km/h or more
  • West Vancouver Island: 80km/h or more for Sustained Winds AND/OR Gusts to 100km/h or more
  • Remainder of BC: 70km/h or more for Sustained Winds AND/OR Gusts to 90km/h or more

For updates and alerts:

Environment Canada Forecasts:                http://www.weather.gc.ca/forecast/canada/index_e.html?id=BC

Environment Canada Alerts:                       http://www.weather.gc.ca/warnings/index_e.html?prov=bc

Environment Canada Weather Blog:        http://www.avalanche.ca/weather

 

 

Source: Matt MacDonald

Acting Warning Preparedness Meteorologist

Prediction and Services Directorate  – Operations West

Meteorological Services of Canada

Environment and Climate Change Canada

401 Burrard St, Vancouver, BC  V6C 3S5

(604) 664-9264

matt.macdonald@ec.gc.ca

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