This is a typical naval smoke screen.
https://www.usni.org/sites/default/files/InnovCell-PRO-1-22%201.jpg
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The US Navy version of setting oil pots on fire to simulate a fire:
I also use the "width=" html command to limit the size of pictures. Here I set it to width=840. Set the width and the photo autoformats to the proper scaling.
And I always Preview a picture to make sure that it appears the way I want it to.