It's an interesting debate for sure. This com…

It's an interesting debate for sure.

This comment, courtesy of Florida meteorologist Geoff Shaughnessy by email, may have laid this matter to rest.

Geoff wrote:

"There are meteo-purists who argue that southwest US summer rains do not meet the established/formal definition of a monsoon. I forecasted for 4 years near Tucson, and I had no problem calling the early July through early Sept rains a "monsoon".

But, I take issue with south Florida summer rains being labeled
"monsoon". Most of our June's heavy rains result from persistent and strong westerly winds in the mid to upper levels (e.g.jetstream) of the atmosphere.

By contrast, a region needs to be dominated by a strong upper level high within a monsoon regime. Even when these westerlies fade in July, we have no established low level thermal/heat low pulling
moisture over our peninsula from a set direction. Our low level winds often come from many directions.

Basically, our peninsula isn't big
enough to force a monsoon circulation. So, I vote no on "south Florida's monsoon".

But, I vote yes for "seasonal" or "summer" rains…if that's any consolation 🙂

Keep up the great writing!"

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