Prevented from achieving forward motion by an applied force, such as wind. Checked creatures on the ground merely stop. Checked flying creatures move back a distance specified in the description of the effect.
Table 3–24: Wind Effects
|Wind Force||Wind Speed||Ranged/ Normal and Siege Weapon Attack Penalty||Creature Size||Wind Effect on Creature||Fort Save DC|
|Light||0 -10 mph||0 / 0||Any||None||0|
|Moderate||11-20 mph||0 / 0||Any||None||9|
|Strong||21- 30 mph||-2/ 0||Tiny or Smaller||Knocked Down||10|
|/||Small or Larger||None||10|
|Severe||31- 50 mph||-4/ 0||Tiny||Blown Away||15|
|Windstorm||51- 74 mph||Impossible/–4||Small or smaller||Blown Away||18|
|/||Large or Huge||Checked||18|
|/||Gargantuan or Colossal||None||18|
|Hurricane||75- 174 mph||Impossible/–8||Medium or smaller||Blown Away||20|
|/||Gargantuan or Colossal||None||20|
|Tornado||175- 300 mph||Impossible/Impossible||Tiny||Blown Away||30|
|/||Gargantuan or Colossal||Checked||30|
1 The siege weapon category includes ballista and catapult attacks as well as boulders tossed by giants.
2 Flying or airborne creatures are treated as one size category smaller than their actual size, so an airborne Gargantuan dragon is treated as Huge for purposes of wind effects.
Checked: Creatures are unable to move forward against the force of the wind. Flying creatures are blown back 1d6×5 feet.
Knocked Down: Creatures are knocked prone by the force of the wind. Flying creatures are instead blown back 1d6×10 feet.
Blown Away: Creatures on the ground are knocked prone and rolled 1d4×10 feet, taking 1d4 points of nonlethal damage per 10 feet. Flying creatures are blown back 2d6×10 feet and take 2d6 points of nonlethal damage due to battering and buffeting.