Current Mountain Snow and Weather Conditions:


Apex Mountain
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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
11.5 cm
0 mm
0 cm
1595 m
1570-2181m
apex
 
                     ― High Clouds ― Mid Clouds ― Low Clouds ― Surface Gusts(Km/Hr) ― 1800m Wind Speed (Km/Hr), Direction

F (Standard)
C (Metric)






Avalanche Bulletin

Granby
Issued by: lbaker
Issued at: Tue Feb 20, 2024 16:00 PST
Valid Until Wed Feb 21, 2024 16:00 PST
Danger ratingsProblemsDetails

Heightened avalanche conditions remain where slabs have formed above a weak layer buried deep in the snowpack.
Evaluate slopes individually before committing to the terrain.
WednesdayThursdayFriday
AlpineModerateModerateLow
TreelineLowLowLow
Below TreelineLowLowLow

Terrain and Travel Advice:
  • Conditions may have improved, but be mindful that deep instabilities are still present.
  • Avoid steep, rocky, and wind effected areas where triggering slabs is more likely.
  • Potential for wide propagation exists, fresh slabs may rest on surface hoar, facets and/or crust.
Persistent Slab

Persistent slabs may be reactive to human triggering in areas, where winds have formed a slab above a layer of facets overlying a crust. Avalanches on this layer could propagate wider and run farther than expected.

Avalanche Summary

On Monday, a few natural and human-triggered wind slab avalanches were observed up to size 1.5 in the Okanagan. It is suspected that these avalanches failed on a weak layer of facets overlying a crust.

Through the weekend several, human-triggered wind slab avalanches up to size 2, were reported in the alpine and open treeline terrain.

Snowpack Summary

Alpine and open treeline terrain are generally wind-affected, with reactive wind slabs in some places. At the surface in most areas, surface hoar is forming in wind protected terrain. Around Nelson and in the Valhallas, small (5 mm) surface hoar (weak, feathery crystals) have been reported to be buried 15-20 cm below the snow surface.

Facets (weak, sugary crystals) are starting to form above a thick rain crust that was buried in early February. This crust is now 30 to 50 cm below the snow surface.

The mid and lower snowpack presents as settled, with snowpacks depths decreasing rapidly on terrain below 1000 m in elevation.

Weather Summary

Tuesday Night

Cloudy with 1 to 2 cm of snow. 10 to 25 km/h southwest ridgetop wind. Treeline temperature around -4 °C. Freezing level 1000 m.

Wednesday

Mostly cloudy with 1 cm of snow. 10 to 20 km/h southwest ridgetop wind. Treeline temperature around 0°C. Freezing level rises to 1600 m through the day.

Thursday

Mostly cloudy with 1 cm of snow. 10 to 20 km/h west ridgetop wind. Treeline temperature around 0°C. Freezing level at valley bottom overnight, rising to 1600 m through the day.

Friday

A mix of sun and cloud. 10 to 25 km/h southwest ridgetop wind. Treeline temperature +1°C. Freezing level rises to 1800 m.

More details can be found in the Mountain Weather Forecast.

Confidence: high
The number, quality, or consistency of field observations is good, and supports our confidence.
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.
Revelstoke
Issued by: lcrawley
Issued at: Tue Feb 20, 2024 16:00 PST
Valid Until Wed Feb 21, 2024 16:00 PST
Danger ratingsProblemsDetails

Incoming snowfall amounts are uncertain.
New snow will be falling on weak layers from the dry spell. If you're seeing 20 cm or more expect avalanches to be likely.
WednesdayThursdayFriday
AlpineModerateModerateModerate
TreelineModerateModerateModerate
Below TreelineLowLowLow

Terrain and Travel Advice:
  • Dial back your terrain choices if you are seeing more than 20 cm of new snow.
  • Fresh snow rests on a problematic persistent slab, don't let good riding lure you into complacency.
  • Watch for fresh storm slabs building throughout the day.
Persistent Slab

There are weak, sugary facetted crystals on the crust from early February (30-50 cm down) or just above it. This problem continues to be triggered by riders daily.

Storm Slab

Snowfall amounts are uncertain. New snow is falling on a drought layer that includes crust on sunny slopes, sugary facets on all slopes, and surface hoar in sheltered locations.

Avalanche Summary

On Monday in the Monashees north of Revelstoke, one large (size 2.5) wind slab avalanche was triggered by the third rider on the slope. They were partially buried with their airbag exposed. Interestingly, no wind effect was felt underfoot in the start zone and the avalanche failed on a weak layer about 5 cm above the crust.

Additionally, several small and large (size 1-2) wind slab avalanches were accidentally triggered in the alpine by riders with no involvement.

Snowpack Summary

Weak layers of surface hoar and facets have grown during the long dry spell and are now getting buried.

Under the new snow, the alpine is generally wind-affected with a crust on slopes facing the sun. In sheltered terrain, 15 to 25 cm of snow overlies various layers including a weak layer of small surface hoar and/or another thin sun crust on solar aspects.

The widespread crust buried in early February is down 30 to 50 cm and has sugary facets on top. In most places, this crust is widespread up to 2400 m.

Weather Summary

Tuesday Night

Cloudy with 10 to 15 cm of snow. 10 to 20 km/h southwest ridgetop wind. Treeline temperature -3 °C. Freezing level 1200 m.

Wednesday

Cloudy with 5 to 10 cm of snow. 10 to 30 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1500 m.

Thursday

Mostly cloudy. 0 to 15 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1500 m.

Friday

Partly cloudy. 25 to 35 km/h southwest ridgetop wind. Treeline temperature -4 °C. Freezing level 1500 m.

More details can be found in the Mountain Weather Forecast.

Confidence: low
Forecast snowfall amounts are uncertain.
Uncertainty is due to how buried persistent weak layers will react with the forecast incoming weather.



↓ - Penticton Forecast

Tuesday nightCloudy with 60 percent chance of showers. Snow level 1500 metres lowering to 700 metres late this evening. Wind south 20 km/h becoming light early this evening. Temperature steady near plus 4.
WednesdayMainly cloudy. 60 percent chance of showers in the morning. Snow level 700 metres. Wind becoming south 20 km/h near noon. High 8. UV index 1 or low.
Wednesday nightMainly cloudy. Wind south 20 km/h becoming light early in the evening. Low plus 3.
ThursdaySunny. High 7.
Thursday nightClear. Low zero.
FridaySunny. High 7.
Friday nightClear. Low minus 1.
SaturdayA mix of sun and cloud with 30 percent chance of showers. High 8.
Saturday nightCloudy with 60 percent chance of rain showers or flurries. Low plus 1.
SundayCloudy with 60 percent chance of showers. High 6.
Sunday nightCloudy with 40 percent chance of rain showers or flurries. Low minus 3.
MondayCloudy. High plus 5.

↓ - Summerland Forecast

Tuesday nightCloudy with 60 percent chance of showers. Snow level 1500 metres lowering to 700 metres late this evening. Wind south 20 km/h becoming light early this evening. Temperature steady near plus 4.
WednesdayMainly cloudy. 60 percent chance of showers in the morning. Snow level 700 metres. Wind becoming south 20 km/h near noon. High 8. UV index 1 or low.
Wednesday nightMainly cloudy. Wind south 20 km/h becoming light early in the evening. Low plus 3.
ThursdaySunny. High 7.
Thursday nightClear. Low zero.
FridaySunny. High 7.
Friday nightClear. Low minus 1.
SaturdayA mix of sun and cloud with 30 percent chance of showers. High 8.
Saturday nightCloudy with 60 percent chance of rain showers or flurries. Low plus 1.
SundayCloudy with 60 percent chance of showers. High 6.
Sunday nightCloudy with 40 percent chance of rain showers or flurries. Low minus 3.
MondayCloudy. High plus 5.

↓ - Kelowna Forecast

Tuesday nightCloudy with 30 percent chance of rain showers or flurries. Snow level 1500 metres lowering to valley bottom after midnight. Low plus 1.
WednesdayCloudy. 30 percent chance of rain showers or flurries early in the morning. Becoming a mix of sun and cloud in the morning. High 8. UV index 1 or low.
Wednesday nightMainly cloudy. Low plus 2.
ThursdaySunny. High 7.
Thursday nightClear. Low zero.
FridaySunny. High 7.
Friday nightClear. Low minus 1.
SaturdayA mix of sun and cloud with 30 percent chance of showers. High 8.
Saturday nightCloudy with 60 percent chance of rain showers or flurries. Low plus 1.
SundayCloudy with 60 percent chance of showers. High 6.
Sunday nightCloudy with 40 percent chance of rain showers or flurries. Low minus 3.
MondayCloudy. High plus 5.

↓ - Princeton Forecast

Tuesday nightCloudy. 60 percent chance of rain showers early this evening then 60 percent chance of flurries late this evening and after midnight. Snow level 1500 metres lowering to valley bottom this evening. Low zero.
WednesdayMainly cloudy. 30 percent chance of flurries early in the morning. High 7. UV index 1 or low.
Wednesday nightPartly cloudy. Low plus 1.
ThursdaySunny. High 7.
Thursday nightClear. Low minus 4.
FridaySunny. High 6.
Friday nightClear. Low minus 3.
SaturdayA mix of sun and cloud with 30 percent chance of showers. High 7.
Saturday nightCloudy with 70 percent chance of showers. Low plus 3.
SundayCloudy with 70 percent chance of showers. High 8.
Sunday nightCloudy with 60 percent chance of rain showers or flurries. Low minus 1.
MondayCloudy with 60 percent chance of flurries or rain showers. High 7.

↓ - Vernon Forecast

Tuesday nightCloudy with 30 percent chance of rain showers or flurries. Snow level 1500 metres lowering to valley bottom after midnight. Low plus 1.
WednesdayCloudy. 30 percent chance of rain showers or flurries early in the morning. Becoming a mix of sun and cloud in the morning. High 8. UV index 1 or low.
Wednesday nightMainly cloudy. Low plus 2.
ThursdaySunny. High 7.
Thursday nightClear. Low zero.
FridaySunny. High 7.
Friday nightClear. Low minus 1.
SaturdayA mix of sun and cloud with 30 percent chance of showers. High 8.
Saturday nightCloudy with 60 percent chance of rain showers or flurries. Low plus 1.
SundayCloudy with 60 percent chance of showers. High 6.
Sunday nightCloudy with 40 percent chance of rain showers or flurries. Low minus 3.
MondayCloudy. High plus 5.

↓ - Western Satelite Loop

Satelite Loading




History


Load 7 Day Weather History
Current Weather:
ApexRoadside
1875m
BlackwallPeak
1940m
Temperature(C) -1.2 -0.5
Liq Precip Last 24Hr mm 2.0 mm
Snow Depth61 cm84 cm
Wind




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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