Gamma World: The Infinity Arc
(Adapted from Pathfinder #7)
Emberstorms, known also as “black blizzards,” are powerful duststorms composed of ash and embers left behind by the Big Mistake. An emberstorm typically takes hours to pass. These violent duststorms typically occur during summer months, when wildfires are more common. Winter emberstorms are seen as particularly bad omens but those that occur during the summer have become little more than an accepted way of life. The natural lay of the land shapes and funnels the path of an emberstorm to a certain extent, and knowledgeable tribes seek out lowlying areas like these out of habit. The edge of the storm assaults those it envelopes with strong winds of 30 mph. Anyone within the storm’s edge suffers a –10 penalty on Perception checks as well as missile attacks beyond ten feet. In addition, targets in the storm’s outer rim benefit from concealment (a 20% miss chance).
The wind deeper in an emberstorm can reach windstorm levels, but is normally severe wind. The scouring ash and grit in the air in an emberstorm functions as a typical duststorm, save that they normally leave behind only 1d4–1 feet of dust and ash in their wake. Additionally, whenever a character takes nonlethal damage from an emberstorm, he also takes 1 point of fire damage from the hot ashes.