Undulating stratus clouds, nearby mountains were covered too so its a stratus cloud, plus; there's a tree covering the Cerro de Topo Chico mountain, from which these wave clouds were radiating from, but i didn't get the chance to take a photo with the mountain in it because my phone died and we were waiting near a store
<a href="//commons.wikimedia.org/wiki/User:Rollcloud" title="User:Rollcloud">Rollcloud</a>
CC BY 4.0
<span class="int-own-work" lang="en">Own work</span>