Causes of Avalanches Shelters Avalanche Motion, Forces and Parts Weather Conditions GEAR
129
What are triggers?
1. loading of a slope by snowfall
2. wind
3. warming temperatures or rain
4. cornice’s falling
5. clumps of snow falling off the trees, rock fall, etc.
100
What is a large rock or a small group of trees?
Limited shelters from avalanches are?
100
What are powder clouds?
When dry avalanches reach 35 km/hr, they create this. Wet avalanches do not create this.
109
What is sunny slopes?
This slope will warm and weaken faster than other slopes
100
What is a shovel?
A good one of these balances lightweight with strength and fits in your pack, but within reason bigger is better.
288
why are gullies and bowls dangerous?
1. there is no escape route.
2. people will get pushed into the center, in the center the forces are the highest and will result in a deep burial.
3. the sides of the gullies may be wind loaded
4. both sides of a bowl may not be stable.
5. one side of a
200
What is timber?
Skiing in this can provide cover and act as anchors to prevent avalanches.
21
What is 30-45 degrees?
This is the ideal slope for an avalanche.
200
What is Shady Slopes?
After storms the new snow layers these slops tend to remain unstable longer on theses slopes
200
What is a probe?
Helps you pinpoint the exact location of an avalanche victim and measure the burial
502
What is physical injuries?
25% of avalanches deaths caused by this.
300
1.Avalanche control
2.Hazards marked
3.Areas closed
4.Ski patrol
Ski areas do these things to help keep you safe inside the ski area boundary.
413
What is 37-39 degrees?
The most common slope to trigger is this.
300
What is higher elevations?
Avalanche dangers is higher while these conditions are present because there is more snowfall and more wind.
300
What is a transceiver?
These are used to locate people who have been buried in avalanches.
26
What is point release?
what starts from something that can release heat.

400
Who are the people you came with?
Your best chance of surviving an avalanche is to be dug out by this group of people.
55
What are Windward slopes?
The slopes receive less snow and may be left with scoured appearance.
400
Larger slops?
These slopes can produce larger avalanches.
400
What is an airbag pack?
This device creates an air pocket when trapped in an avalanche so you can breath.
3
When a small amount of snow the size of a snowball slips and begins to slide
How does point release start?
500
What is 10%?
After 30 minutes of burial in an avalanche your chance of surviving drops to this.
What is surprisingly powerful and harmful?
Small avalanches can be this.
500
What is harsh winter conditions?
Shady slopes are more likely to produce avalanches under these conditions.
500
What is a helmet?
When in the back country you should always wear this.






Those deadly things called avalanches

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