Ice storm

The ice storm spell can have one of two effects, at the caster's option: Either great hail stones pound down for a minute in a 40-foot-diameter area, or driving sleet falls in an 80-foot-diameter area for a longer period. The sleet blinds creatures within its area for the duration of the spell and causes the ground in the area to be icy. The sleet also extinguishes torches and small fires.

Note: This version of wall of ice originally appeared in the 2nd Edition Player's Handbook for Advanced Dungeons & Dragons from TSR. Its use here is for the purposes of providing context for the campaign only.