Ice Storm Version B

Refer to the sounding diagram on your worksheet for questions 12-18. At what pressure level did the sounding begin?

• 1000mb

• 1010mb

• 950 mb

• 0mb

What is the temperature at 650 mb?

• O degrees C

• 5 degrees C

• -10 degrees C

• -20 degrees C

• -3 degrees C

At which pressure level does the air temperature equal -30 degrees C?

• 170 mb

• 150 mb

• 300 mb

• 250 mb

Is there a melting layer on the sounding?

• Yes

• No

Is there a surface sub-freezing layer?

• Yes

• No

Using your answers to #15 and #16 is the sounding favorable for freezing rain?

• Yes

• No

A band of freezing rain occurs _____________ with respect to the center of wintertime low pressure system.

• behind the warm front
• behind the cold front
• north of the warm front
• north of the cold front

Freezing rain requires all except

• wind speeds that exceed 35 mph
• a warm melting layer above the surface
• surface temperatures below freezing
• a surface to freeze upon

Liquid water is less dense than ice.

• True 
• False

The molecular structure of ice is ____________ sided.

• 2

• 4

• 6

• 8