At first looks, the cloud seemed to have been Cirrus spissatus due to their dense shape and seemingly looking like high-level clouds. Bur from the weather sounding I came to the conclusion that these were actually Altocumulus clouds due to their formation at lower levels around 550mb height and warmer, drier air underneath them. Upon further analysis of the cloud photos, these seemed to have tendrils or virga hanging from underneath them similar to the tendrils of cirrus hence decided that these are Ac virga. The first thumbnail seems to confirm the cloud species. Of note was that the surface air was unseasonably warm for February.