If you look closely there is a smoke column rising from the ground, probably someone burning a pile of trees removed for new construction. Happens all the time. The warm air from the fire rises and condenses in the cooler air above. That along with the smoke particles that the moisture can cling to makes a temporary cloud. Out west some big wildfires do this and can actually make huge clouds that produce lightning. Amazing!
(from and old wildland fireman)
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