Chapter 15 PPT

Question 1

Blizzard

Answer 1

Wind speeds exceeds 30kts (35 mph) and falling or blowing snow reduce visibility to less than 1/4 mile for at least 3 hours.

Question 2

Why are blizzards most common in the Northern Great Plains?

Answer 2

• Rocky Mountains block mild pacific air masses, are one of many reasons

Question 3

Which of the following factors favors the formation of very cold winter air?

a. Long Winter Nights
b. Ground Snow Cover
c. Clear Skies
d. All of the above

Answer 3

D.All of the above

Question 4

What are the 3 steps to colorado cyclone blizzards?

Answer 4

1. Trough develops in jet over rocky mountains
2. Cold air over Canada is pulled south by the circulation around the cyclone.
3. Strong winds from the Northwest side of the cyclone.

Question 5

You are most likely to observe upslope flow (east Wind) on the WHAT side of cyclone that forms in eastern Colorado

Answer 5

The North Side of the cyclone

Question 6

What types of weather occurs with alberta clipper blizzards?

Answer 6

• Fronts southward
• Cold Temperatures
• Strong Winds
• Snow fall

Question 7

Ground Blizzard

Answer 7

A blizzard that is caused solely by blowing snow (No new snow is falling during a ground blizzard)

Question 8

Do you feel colder in a wind chill when you are wet?

Answer 8

Yes