Do clouds affect fireworks?

Low humidity makes colors more vibrant! Temperature inversions and winds blowing in the wrong direction can soak us in smoke if we're in the wrong spot. Then there is fog or low clouds that could end up increasing the volume of the sound of the explosions.



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Fireworks can be set off in the rain, but they must be located inside a sealed container to be lit. Typically, professional firework shows will have a contingency plan like this in place, in case of rainfall. Sealed containers will help to limit the amount of rain and moisture hitting the firework.

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Winds should be less than about 20 mph to be safe. The wind direction determines where the smoke from the fireworks travel. You would likely want the wind to carry the smoke away from where people are sitting. Completely calm conditions are also not the best as the smoke can linger over the area.

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Nonetheless, fireworks are not found to be an actual cause for rain. The concentration of chemicals during even the busiest of firework nights alone are not enough to open the floodgates of the sky.

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