Forecast Exercise: Hail Size

Nomogram to modify Fawbush-Miller hail size prediction for tropical airmass thunderstorms.

To answer the next question, you may want to open one or both of the following:

What is the wet-bulb zero level in the sounding?
hPa  

The correct answer is 750 hPa.

Do we need to apply the second Fawbush-Miller Nomogram to modify the predicted hail size?
Yes
No
The correct answer is No.
As you may recall from page 6 of this section, you apply the second nomogram if the wet-bulb zero height is above 10,500 feet (~670 hPa). Since the wet-bulb zero level is lower than the 670 hPa level, no modification of hail size is necessary.
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