Storm Chest

A Storm Chest is a side-objective in Fortnite: Save the World. It's appearance is that of a purple-tinted Tier 6 Chest surrounded by a purple smoke. It can be found mostly on the outskirts of maps, similar to Anomalies, but can sometimes appear in the central area of a map, even near or inside of buildings.

Tips

 * Depending on the mission and Power Level of the enemies, you may need a teammate or two to help complete the Storm Chest waves.
 * The Outlanders and Ninjas are most effective against the hordes.
 * Turrets are extremely effective for the Storm Chest.

Objective
Upon activating the Storm Chest, an atonal sound effect can be heard, and Husks will begin to spawn in the vicinity of the chest. The amount of rewards granted by the Storm Chest depend on the completion of the waves.

3 Waves
If at anypoint during the Waves that the number of targets were not eliminated, the Storm Chest will close and disappear for the entirety of the mission.
 * Eliminate (0/25) enemies that spawn in 1 minute. After completion of 25 killed enemies, you will need to kill another 25 to make for 50 total killed.
 * Eliminate (0/50) enemies that spawn in 30 seconds.
 * Eliminate (0/2) Mist Monsters in 30 seconds. These may include Blasters or Takers.

Rewards
Storm Chests grant valuable rewards due to the amount of effort required to complete them. Rewards generally include a good quantity of crafting materials and ammunition, and one to two weapons. The tier of the crafting material and weapon rewards scales with the power level and zone of the mission— Silver Ore and Malachite-tier weapons are likely in mid-Plankerton, for example.

Trivia

 * There can be up to 6 Storm Chests in a single mission.