Current Mountain Snow and Weather Conditions:


Mount Seymour
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Mount Seymour Snowfall and Temperature History


Weather

Currently:
Temp(C)24 hr Snow(cm)Runs Open Base Depth(cm)
3.00.0030
 




Forecast


GFS Forecast Updated:  
10 Day snow total
10 day rain total
24 Hour Snow total
GFS Elevation
top/bottom
Location:
Feb 20, 2024: 12pm
90.6 cm
78.1 mm
0 cm
836 m
936-1265m
seymour
 
                     ― High Clouds ― Mid Clouds ― Low Clouds ― Surface Gusts(Km/Hr) ― 1800m Wind Speed (Km/Hr), Direction

F (Standard)
C (Metric)






Avalanche Bulletin

North Shore
Issued by: trettie
Issued at: Tue Feb 20, 2024 16:00 PST
Valid Until Wed Feb 21, 2024 16:00 PST
Danger ratingsProblemsDetails

Use caution in the alpine where rider triggerable wind slabs are possible.
A diminishing snowpack will make for challenging travel.
WednesdayThursdayFriday
AlpineModerateModerateLow
TreelineLowLowLow
Below TreelineLowLowLow

Terrain and Travel Advice:
  • Watch for wind-loaded pockets especially around ridgecrest and in extreme terrain.
  • A crust on the surface will help bind the snow together, but may make for tough travel conditions.
Wind Slab

New snow and wind could form wind slab at higher elevations.

Avalanche Summary

No recent avalanches have been observed in this region.

Snowpack Summary

Up to 20 cm of new snow could accumulate over a variety of surfaces in the alpine including; a crust and previously wind effected surfaces in exposed terrain.

The remainder of the snowpack is well settled. Conditions remain rugged at lower elevations.

 

Weather Summary

Tuesday Night

Cloudy with 5 to 10 mm of mixed precipitation expected. 10 to 25 km/h southeast alpine wind. Freezing level around 1500 m.

Wednesday

Cloudy with 10 mm of mixed precipitation expected. 15 to 30 km/h southeast alpine wind. Freezing level rising to 1500 m.

Thursday

Mostly cloudy with around 5 mm of mixed precipitation expected. 10 to 25 km/h southeast alpine wind. Freezing level rising to 1500 m.

Friday

A mix of sun and cloud. 30 to 50 km/h southwest alpine wind. Freezing level rising to 1700 m.

More details can be found in the Mountain Weather Forecast.

Confidence: moderate
Uncertainty is due to the track & intensity of the incoming weather system.
Whistler
Issued by: trettie
Issued at: Tue Feb 20, 2024 16:00 PST
Valid Until Wed Feb 21, 2024 16:00 PST
Danger ratingsProblemsDetails

Assess for slab properties as you move through terrain.
Rider triggerable slabs are possible where a slab overlies facets, surface hoar or a crust.
WednesdayThursdayFriday
AlpineConsiderableModerateModerate
TreelineModerateModerateModerate
Below TreelineLowLowLow

Terrain and Travel Advice:
  • The best and safest riding will be on slopes that have soft snow without any slab properties.
  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
  • Watch for newly formed and reactive wind slabs as you transition into wind affected terrain.
Persistent Slab

New snow will add to the load over weak layers from early February and late January.

Wind Slab

New snow and wind will form wind slabs near ridge crests.

Avalanche Summary

Over the past week we have seen a pattern of human and remotely triggered size 1 to 1.5 wind slab avalanches with a few being up to size 2. Human-triggered avalanches have occurred on a range of aspects. Slabs have been averaging 20 - 30 cm thick, with some failing on buried surface hoar and propagating widely.

Snowpack Summary

Up to 20 cm of new snow could accumulate over a variety of surfaces including; a crust on south aspects and all aspects at lower elevation, Surface hoar in sheltered features and previously wind effected surfaces in exposed terrain.

30 to 40 cm of snow sits above large surface hoar and/or faceted crystals at treeline and above. This is most problematic in places where wind slabs have formed over it. A widespread, supportive crust exists 30 to 60 cm below the surface. It is an excellent bed surface for slabs run to on.

The snowpack is well bonded and strong below this crust.

Weather Summary

Tuesday Night

Mostly cloudy with 5 to 10 cm of new snow expected. 15 to 30 km/h south alpine wind. Treeline temperature -2°C.

Wednesday

Mostly cloudy with 5 to 10 cm of new snow expected. 15 to 30 km/h southeast alpine wind. Freezing level rising to 1700 m.

Thursday

Mostly cloudy with around 5 cm of new snow expected. 5 to 15 km/h southeast alpine wind. Freezing level rising to 1500 m.

Friday

Mostly sunny with trace amounts of new snow possible. 30 to 50 km/h southwest alpine wind. Freezing level rising to 1700 m.

More details can be found in the Mountain Weather Forecast.

Confidence: moderate
Uncertainty is due to the track & intensity of the incoming weather system.
Coquihalla
Issued by: trettie
Issued at: Tue Feb 20, 2024 16:00 PST
Valid Until Wed Feb 21, 2024 16:00 PST
Danger ratingsProblemsDetails

Use caution in wind effected terrain, wind slab over facets, surface hoar or a crust remains the primary concern.
WednesdayThursdayFriday
AlpineModerateLowLow
TreelineLowLowLow
Below TreelineLowLowLow

Terrain and Travel Advice:
  • Carefully evaluate steep lines for wind slabs.
  • Wind slabs may be poorly bonded to the underlying crust.
  • Back off slopes as the surface becomes moist or wet with rising temperatures.
Wind Slab

Outflow wind has impacted open terrain on all aspects at treeline and alpine elevations. The resulting wind slabs are bonding poorly to the underlying crust.

Avalanche Summary

No new avalanches have been reported in the past few days.

Snowpack Summary

New snow will accumulate over a variety of surfaces including; surface hoar in sheltered terrain, A crust on south aspects and all aspects below treeline and old wind effected surfaces in exposed terrain.

A widespread crust exists 25-40 cm below the surface, and surface hoar has been found above the crust in some parts of the region.

The remainder of the snowpack is well settled. Conditions remain rugged at lower elevations.

Weather Summary

Tuesday Night

Mostly cloudy with up to 5 cm of new snow expected in the alpine. 10 to 25 km/h southeast alpine wind. Freezing level around 1500 m.

Wednesday

A mix of sun and cloud with trace amounts of new snow expected in the alpine. 15 to 30 km/h southeast alpine wind. Freezing level rising to 1800 m.

Thursday

A mix of sun and cloud with trace amounts of new snow expected. 10 to 25 km/h southeast alpine wind. Freezing level rising to 1500 m.

Friday

Mostly sunny . 30 to 50 km/h southwest alpine wind. Freezing level rising to 1500 m.

More details can be found in the Mountain Weather Forecast.

Confidence: moderate
Uncertainty is due to limitations in the field data.
The snowpack structure is generally well understood.



↓ - West Vancouver Forecast

Tuesday nightCloudy with 40 percent chance of showers. Showers beginning before morning. Low 6.
WednesdayShowers. Wind becoming east 20 km/h in the morning. High 10. UV index 1 or low.
Wednesday nightShowers ending after midnight then cloudy with 40 percent chance of showers. Low 6.
ThursdayA mix of sun and cloud with 30 percent chance of showers. High 11.
Thursday nightClear. Low plus 3.
FridayA mix of sun and cloud. High 10.
Friday nightCloudy periods. Low plus 3.
SaturdayCloudy. High 9.
Saturday nightCloudy with 60 percent chance of showers. Low plus 4.
SundayCloudy with 60 percent chance of showers. High 8.
Sunday nightCloudy. Low plus 1.
MondayCloudy with 60 percent chance of showers. High 8.

↓ - Vancouver Forecast

Tuesday nightCloudy with 40 percent chance of showers. Showers beginning before morning. Low 6.
WednesdayShowers. Wind becoming east 20 km/h in the morning. High 10. UV index 1 or low.
Wednesday nightShowers ending after midnight then cloudy with 40 percent chance of showers. Low 6.
ThursdayA mix of sun and cloud with 30 percent chance of showers. High 11.
Thursday nightClear. Low plus 3.
FridayA mix of sun and cloud. High 10.
Friday nightCloudy periods. Low plus 3.
SaturdayCloudy. High 9.
Saturday nightCloudy with 60 percent chance of showers. Low plus 4.
SundayCloudy with 60 percent chance of showers. High 8.
Sunday nightCloudy. Low plus 1.
MondayCloudy with 60 percent chance of showers. High 8.

↓ - Richmond Forecast

Tuesday nightCloudy with 40 percent chance of showers. Showers beginning before morning. Low 6.
WednesdayShowers. Wind east 20 km/h becoming light in the afternoon. High 10. UV index 1 or low.
Wednesday nightShowers. Low 6.
ThursdayA mix of sun and cloud with 30 percent chance of showers. High 11.
Thursday nightClear. Low plus 3.
FridayA mix of sun and cloud. High 10.
Friday nightCloudy periods. Low plus 3.
SaturdayCloudy. High 9.
Saturday nightCloudy with 60 percent chance of showers. Low plus 4.
SundayCloudy with 60 percent chance of showers. High 8.
Sunday nightCloudy. Low plus 1.
MondayCloudy with 60 percent chance of showers. High 8.

↓ - Western Satelite Loop

Satelite Loading




History


Load 7 Day Weather History
Current Weather:
MtStrachan
1420m
MtStrachanprecip
1220m
WestVancouver
171m
BlackwallPeak
1940m
SpuzzumCreek
1180m
Temperature(C) OUT OF DATE 1.8 8.1 0.1 1.7
Liq Precip Last 24Hr Last Reading At 5.6 mm 5.0 mm 4.0 mm 14.0 mm
Snow Depth2022-7-20 7:000 cm0 cm83 cm110 cm
Wind← at 2.3 km/h




Locations

BC: Whistler Blackcomb
BC: Apex Mountain
BC: Fernie
BC: Mt Cain
BC: Cypress Mountain
BC: Mount Seymour
BC: Grouse Mountain
AB: Lake Louise Ski Resort
BC: Kicking Horse
BC: Revelstoke Mountain Resort
Ca: Heavenly
Ca: Diamond Peak
Ca: Mammoth Mtn
Ca: Kirkwood
Ca: Northstar at Tahoe
Ca: Sierra at Tahoe
Ca: Squaw Valley
Co: Crested Butte
Co: Aspen Mountain
Co: Aspen Highlands
Co: Buttermilk
Co: Snowmass
Co: Beaver Creek
Co: Breckenridge Resort
Co: Keystone Resort
Co: Telluride
Co: Vail Resort
Or: Mt Hood Meadows
Ut: Brighton
Ut: Solitude
Ut: Snowbird
Ut: Park City Mountain Resort
Wa: Mount Baker
Wa: Crystal Mountain
Wa: Stevens Pass
Wy: Jackson Hole




**This page is for informational purposes only and is not intended as a guide or gurantee of weather or conditions accuracy. Use with good judgement and explore with caution**
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