Is this mold on my sourdough? :(

Is this mold on my sourdough? 🙁

I took my SD out of the fridge to use it for bread making, and its surface was covered with this yucky moldy-looking layer..  The smell, however, is quite the same, soury as usual.

I removed as much as I could and mixed it, and it looks ok (bottom right image). But can I use it??? I don’t wanna be eating anything bad..

background info:

-it’s a rye sourdough (1 part rye, twice as much parts water)

-last feed was almost two weeks ago. I keep it in the fridge and it always looked regular till now.

-I live in a very hot and dry area and summer started pretty bad the last 3 weeks.

 

Source: Fresh Loaf