The spell stirred the air within a radius of 10 feet (3 meters) of the caster to spin in a violent wind at a speed of 20 miles (32 kilometers) per hour that lasted for up to 10 minutes, as long as the caster kept concentrating. The wind was loud enough to render all verbal communication impossible within the affected area. It extinguished unprotected flames in the area and also dissipated vapors, gases, and fog. Any creature other than the caster could only traverse the area at great difficulty, and projectile weapons crossing the wind became extremely unreliable.
- ↑ 1.0 1.1 1.2 1.3 Jeremy Crawford, Mike Mearls, Robert J. Schwalb, Adam Lee, Christopher Perkins, Matt Sernett (November 2017). Xanathar's Guide to Everything. Edited by Kim Mohan. (Wizards of the Coast), pp. 147–149, 170. ISBN 978-0-7869-6612-7.
- ↑ Michele Carter, Stacy Janssen eds. (2015). Princes of the Apocalypse. (Wizards of the Coast), p. 241. ISBN 978-0786965786.