Sunday, September 20, 2020

What’s Behind a Front?

 

 

By Lt. Bill Hempel,
United States Power Squadrons

I find TV weathermen to be most confusing. They seem to be happy if there is a threat of a hurricane and sad when there is nothing to report: “There is a tropical depression forming off the coast of Africa (smile, smile).” Then, there is this low pressure thing that they say is bad. When they talk about isobars with the pressure up, I am really lost.

But the big question in my mind is: What is a front? In simple terms, it is the line of demarcation between two air masses of different temperatures. A front can be a cold or warm front. Since fronts represent a change in temperature, they frequently bring adverse weather conditions, and deserve the attention of

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