Preheat your oven to 425°F and line a large baking sheet with parchment paper.
Pat the chicken wings thoroughly dry with paper towels to ensure the skin gets maximum crispiness.
In a large mixing bowl, toss the wings with avocado oil, sea salt, black pepper, garlic powder, and smoked paprika until evenly coated.
Arrange the wings in a single layer on the prepared baking sheet, leaving space between each piece.
Bake for 35 to 40 minutes, flipping the wings halfway through, until they are golden brown and crispy.
While the wings are baking, whisk together the sugar-free BBQ sauce and sriracha in a clean large bowl.
In a small bowl, stir together the Greek yogurt and dried dill to create a cooling dipping sauce.
Once the wings are finished, immediately transfer them to the bowl with the BBQ sauce mixture and toss to coat.
Serve the hot wings alongside the celery stalks and the prepared yogurt dip.