for the information of the rest of the forum,
A slab avalanche occurs when the weak layer lies lower down in a snowpack. This layer is covered with other layers of compressed snow. When the avalanche is triggered, the weak layer breaks off, pulling all the layers on top of it down the slope. These layers tumble and fall in a giant block, or slab.
the snow layers are dry snow not water
Wet-Slab Avalanches ≡ Release of a cohesive layer of snow (a slab) that is generally moist or wet when the flow of liquid water weakens the bond between the slab and the surface below (snow or ground). They often occur during prolonged warming events and/or rain-on-snow events.
so a slab avalanche would be dry snow, a wet slab would have water. makes quite a difference in how wet a person gets when it hits
There's a bit more information on the slab slide , it has been plagiarised several times on the internet.
Your quote is from here. It goes on to talk about other types of avalanche
https://education.nationalgeographic.org/resource/avalanche/https://www.iasgyan.in/blogs/avalanchesA slab avalanche occurs when the weak layer lies lower down in a snowpack. This layer is covered with other layers of compressed snow.
When the avalanche is triggered, the weak layer breaks off, pulling all the layers on top of it down the slope. These layers tumble and fall in a giant block, or slab.
Once a slab avalanche starts, the slab shatters into many separate blocks. These snow blocks break up into ever-smaller pieces. Some of the pieces rise into the air as a moving cloud of icy particles. The cloud races downhill at very high speeds.
The thickness and speed of slab avalanches make them a threat to skiers, snowboarders, mountaineers, and hikers.
Slab avalanches are, by far, the most dangerous types of avalanches for people.
A slab will move very quickly downhill, up to 130 km/h, starting off as a cohesive unit and shattering into smaller pieces as it descends.
Your second quote regarding wet-slab avalanches comes from here.
https://www.sierraavalanchecenter.org/avalanche-problemsQuite interesting the number and types of avalanche along with names on this site. The wind was blowing and there is information of a warm front being followed by a cold front at the pass.
For the record, I don't think GlennM was saying it was a wet slab with water. I read it as a thought exercise not a factual statement. However tenne, the statements you copied and with Manti's and GlennM's thought exercise it has lead us to the number of types of avalanche in the above link. Plus you reminded me of lupos's work. It has got me thinking!