Polar Vortex Response

What This Service Involves

A displaced polar vortex occasionally spills bitterly cold air through the Fraser River gap and into the lowlands, driving temperatures far below our typical maritime winter. In these stretches, standard sodium-chloride deicers lose effectiveness and refreeze becomes a persistent threat on every treated surface. Our crews switch to cold-rated deicing chemistry and increase monitoring frequency to hold surfaces safe as the mercury drops. We also advise clients on protecting access to meters, hydrants, and pipes that face freezing risk during these rare but severe cold snaps.

Benefits

Cold-rated deicer chemistry that keeps working when rock salt quits; Increased monitoring to catch refreeze during prolonged sub-freezing spells; Guidance on protecting vulnerable meters, hydrants, and pipe areas; Continuity of safe access even during the region's most extreme cold

Our Process

1) Confirm forecast track of the Arctic outbreak through the Fraser gap; 2) Switch to magnesium or calcium chloride rated for deep cold; 3) Increase treatment passes to counter persistent refreeze; 4) Verify critical utility and access points stay clear through the event

What Affects the Cost

Length of the sub-freezing period requiring sustained coverage; Premium cost of cold-rated deicing products; Number of monitoring and treatment passes across the outbreak; Wind chill that accelerates surface refreezing; Extent of utility and access points needing protection

Best Time of Year

Polar vortex intrusions are uncommon but most likely from late December through January when Arctic air breaches the Fraser River gap.