what causes huge puffs like this? : meteorology

Hey,

So as I said I intended to do in a previous post, I am transferring to a 4 year college to finish a BS in Mathematics. After this, I plan on going to grad school somewhere for Atmospheric Science/Meteorology. However, something has always poked at me in the back of my mind. If I want to become an NWS meteorologist someday, I have to meet minimum educational requirements laid out in their jetstream page. It talks about getting a Bachelors in Atmospheric Science, but if I was to get my BS in Math, then get a Masters in Atmo Sci, would I still meet the minimum requirements to be hired by the NWS?

Any clarification would help immensely.