Sand Stream creates a sandstorm when the ability-bearer enters battle. As opposed to the move Sandstorm it lasts until the end of the battle, unless it is cleared via Air Lock or Cloud Nine or replaced by another weather condition.
If multiple Pokemon with weather-generating abilities (Sand Stream, Drizzle, Drought or Snow Warning) enter the field on the same turn, each weather condition will activate consecutively, fastest Pokemon first. In other words, the resultant weather condition will be the one from the slowest Pokemon.
| Generation III | Summons a sandstorm. |
|---|---|
| Generation IV | The Pokémon summons a sandstorm in battle. |
| Generation V | The Pokémon summons a sandstorm in battle. |
# | Name | 2nd ability | Hidden ability |
|---|---|---|---|
| 248 | Tyranitar | — | Unnerve |
| 449 | Hippopotas | — | Sand Force |
| 450 | Hippowdon | — | Sand Force |
No Pokemon have Sand Stream as a hidden ability in Pokemon Black & White.