Icing Example 1 (continued)

Hypothetical sounding for icing in cumulus clouds

(If you haven't done so already, you can open the interactive skew-T with this sounding).

In what layer would you expect icing?
(Choose the best answer.)
a) 250-450 hPa
b) 450-500 hPa
c) 500-650 hPa
d) 650-700 hPa
e) 700-1000 hPa

That is incorrect.
Icing would be expected in clouds where the temperature falls between -2 and -15°C.
The correct answer is c) 500-650. Icing would be expected in the cloud layer from 650-500 hPa, where temperatures are between -2 and -16°C.

What type(s) of icing would you expect to occur?
(Choose all that apply, then click Done.)
a) Clear
b) Rime
c) Mixed
The correct answers are a) Clear and c) Mixed.
Clear icing from 650 to 575 hPa, where the temperatures are between -2 and -7°C.
Mixed (rime and clear) icing from 575 hPa up to 500 hPa, where the temperatures are slightly colder.
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