South Coast Inland

These ratings are biased toward the southern half of the region where deeper storm totals are expected. They reflect conditions that are expected to develop Thursday afternoon as new snow and wind create fresh storm slabs at upper elevations.

Moderate - Timing, track, or intensity of incoming weather system is uncertain on Thursday

A significant weather system is expected to impact the Coast Thursday. Steady snow is expected throughout the day Thursday with light accumulations in the northern half of the region, more significant accumulations are expected to the south. A ridge of high pressure will start to build over the Pacific again starting Friday. On Saturday a stagnant airmass should allow warm air to begin spilling into the region. THURSDAY: Overcast, freezing level at valley bottom, moderate southwest wind, 5 to 10 cm of snow possible in the north of the region. 15 to 25 cm of snow expected in the south of the region.THURSDAY NIGHT: Overcast, freezing level at valley bottom, moderate to strong south/southwest wind, 5 to 10 cm of snow possible.FRIDAY: Scattered cloud, freezing level around 850 m, moderate to strong west/southwest wind, trace of snow possible.SATURDAY: Overcast, freezing level beginning near 1200 m, rising to 2600 m throughout the day, light southwest wind, no precipitation expected.

No new avalanche activity was reported on Tuesday or Wednesday. On Monday isolated wind slabs above 2200 m were reactive to skier triggering, but were reluctant to move. On Sunday a small size 1 natural avalanche and a couple small skier controlled avalanches were reported from unknown aspects/elevations. These were likely small storm slabs running above the recently formed crust.

20 to 40 cm of recent storm snow now rests on the the January 6th crust. This crust formed after temperatures cooled on Saturday, locking up the previously moist surface snow. On Sunday moderate to strong southwest winds redistributed snow and formed wind slabs in lee features at and above treeline. A widespread melt-freeze crust formed in mid-December is still an issue in the northern portion of the region where it is down 40 to 50 cm below the surface. Recent observations have shown that there are rounding facets underneath the crust on polar aspects (north and east) at and above treeline. Recent snowpack tests have produced easy sudden-planar results on solar aspects (south and west) at and above treeline on this interface as well. Around the Coquihalla this interface is not problematic and is thought to be part of a well bonded mid-pack. The lower snowpack is generally strong and well settled.