Ansar Allah (also known as the Houthis) and its allies have been developing their advance on positions of Saudi proxies near the city of Qatabah. According to pro-Yemeni sources, Saudi-led forces are facing a significant pressure in the areas of Hamr, Qardah and Naqil al-Shim. Heavy clashes are ongoing there.
Given the incomparable incompetence of the Saudi military, wouldn’t surprise if the Houthis go all the way to Riyadh. All they need to do is keep their supply lines intact.