Episode 9: Frazil Ice

The video explores the unique phenomenon of frazil ice formation in Yosemite National Park, particularly in March and April. Frazil ice consists of small ice crystals that form in waterfalls and flow like a slushy mass in streams. This dynamic ice can cause infrastructure damage and poses safety risks due to its deceptive appearance. The video also discusses the snow cone formation at Yosemite Falls and dispels myths about its connection to frazil ice. Frazil ice serves as a seasonal marker, indicating the transition from winter to spring in Yosemite.

What is frazil ice primarily composed of?

• Solid ice crystals

• Frozen mist particles

• Snowflakes

• Water vapor

How does frazil ice affect the flow of Yosemite Creek?

• It creates blockages and redirects the flow

• It speeds up the flow

• It evaporates the water

• It freezes the entire creek

What is a potential danger of walking on frazil ice?

• It may collapse, leading to a fall into icy water

• It can suddenly melt

• It is too hot to touch

• It is slippery and causes falls

What is the snow cone in Yosemite?

• A type of ice cream sold in the park

• A natural rock formation

• A type of tree found in the valley

• A large mound of ice and snow at the base of a waterfall

When is frazil ice most commonly observed in Yosemite?

• December and January

• March and April

• September and October

• June and July

What is a common misconception about frazil ice?

• It is the same as snow

• It is directly connected to the snow cone

• It is safe to walk on

• It only forms in summer

Why might visitors miss seeing frazil ice in Yosemite?

• Most visitors come during the summer months

• It only occurs at night

• It is hidden in remote areas

• It is too small to notice