The temperature inversion, humidity and cloud cover all play into how the smoke will act, lay out around the ground or raise away from the fire. We used to have to consider these factors when detonating un-serviceable and hostile munitions and using demolition charges. The same factors that effect smoke also effect blast/shock waves. If you weren't on a licensed range with weather support popping off a smoke grenade and watching where the smoke goes gives you an idea on how big of a shot you can make.
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Today's Featured Article - The Tractor Parade: Story of a Case SC - by Bernie DeLon. On a early fall morning back in 1994, I opened the newspaper and happened to spy an article about a local antique tractor club having their annual show that weekend.
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