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...Cold Air Funnels Possible...

There have been a few reports of cold air funnels in southeast
Missouri. These cold air funnels are developing underneath
scattered showers and thunderstorms that are moving across the
area. Underneath these showers, spinning columns of air that look
like tornadoes may continue to develop. These funnels usually are
very brief and rarely touch the ground. If these funnels do touch
down, they most likely will not cause damage to life or property.

Cold air funnels are due to very cool air aloft, warm moist air
near the ground, and are usually in association with a strong
area of low pressure in the upper levels of the atmosphere. Due to
little or no wind shear, they are usually weak and very brief.