User blog comment:Thomas.lopezalmenas/Hmmm/@comment-26435037-20140217203415/@comment-3146930-20140218232622

However all the times that Weiss has been shown using Glyphs, her weapon has always been by her side. When the Boarbatusk disarmed her in class, she had to scramble to get her sword back before making the Glyphs to eventually defeat the Grimm.

To the comment above me, Pyrrha was clearly able to move Jaune's shield from at least a moderately far distance. If Weiss and Pyrrha were in the same arena, Weiss would probably be in range. However depending on the focus needed to control her Semblance, Pyhhra may not be able to completely disarm her before she set up some kind of counter (Weiss is aware of her ability after all).