In abilene texas, there was a big ole spray plane with an 8 plume discharge, the buzzard flew right over the city the trails disappeared after 3 minutes of leaving the the spray nozzle. That is all I saw the whole day, then right before evening, I saw many planes flying in Cris / Cross patterns over the air base, the trails soon after hung in the air, and formed broken circular clouds all around the air base. Right at sun set the broken circular clouds which resembled a giant bow and arrow target in the sky over the base, started to condense and form a funnel then shortly after they started spraying the city you could see the failing trails in the full moon light. By morning the skies were crystal clear, by noon the sky was full of natural clouds. I have not seen this in years!!!