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August 10, 2014 04:34 PM

Cold Air Funnel Clouds Spotted Near Harrisburg

Harrisburg, SD

The Storm Center has received a few pictures of some cold-air funnel clouds that occurred early this afternoon. These usually occur in the spring and fall seasons and last only a few minutes. You can think of them like this, in the same way a large scale, stronger cold front moving into warm and moist air can cause large damaging tornadoes, if we scale back the strength of the front and move this weaker front into warm and moist air, these cold-air funnels can happen.

The biggest difference between cold-air funnel clouds and their larger counterparts is cold-air funnels spin out of cumulous clouds while large tornadoes come out of wall clouds which are attached to a supercell thunderstorm.

These normally pose no threat, which is why no warning is attached to them, since they rarely touch the ground but they have been known to touch the ground briefly and cause minor damage.

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