What to know
- Gather basic resources like plastic and metal parts for the initial phase.
- Hunt new Shrouded Sky enemies for rare drops like comet igniter and firefly burner.
- Focus on industrial and residential areas for most components.
- Progress sequentially through sunlight, precipitation, humidity, and temperature phases.
The Weather Monitoring System project introduced in Arc Raiders‘ Shrouded Sky update has five straightforward phases that require you to collect specific items from raids across various maps. Most materials come from common loot spots, but a couple require taking down the new ARC enemies carefully.
| Phase | Key Focus | Main Loot Areas |
|---|---|---|
| 1: Base Setup | Easy starters | Anywhere common |
| 2: Sunlight | Enemy drop needed | Open sky maps |
| 3: Precipitation | Industrial bulk | Factories, outskirts |
| 4: Humidity | Tech scraps | Warehouses |
| 5: Temperature | Final enemy hunt | Industrial offices |
Phase 1 base setup requirements
Start simple with everyday raid finds. You need these exact amounts to unlock the next steps.
| Item | Quantity |
|---|---|
| Plastic parts | 25 |
| Metal parts | 15 |
| Arc alloy | 5 |
| Oil | 3 |
Phase 2 sunlight requirements
Shift to tech pieces plus your first special enemy drop. Spot comet igniters crashing from the sky on most maps except Stella Montis. Kill the comet before it charges and explodes to secure the drop.
| Item | Quantity |
|---|---|
| Snitch scanner | 1 |
| Wires | 3 |
| Sensors | 3 |
| Comet igniter | 1 |
Phase 3 precipitation requirements
Stock up in industrial zones for the bulk here. Hunt fine wristwatches in red lockers or residential spots on maps like Buried City or Dam outskirts.
| Item | Quantity |
|---|---|
| Steel springs | 5 |
| Canisters | 5 |
| Arc power cells | 5 |
| Fine wristwatch | 1 |
Phase 4 humidity requirements
Grab these from industrial and tech-heavy areas. Wasp drivers drop from wasps, while rusted bolts hide in crates and boxes around warehouses and factories.
| Item | Quantity |
|---|---|
| Rusted bolts | 3 |
| Duct tape | 10 |
| Water pump | 1 |
| Wasp drivers | 3 |
Phase 5 temperature requirements
Finish strong with tech loot and another enemy kill. Firefly burners come from firefly enemies—armored flyers that beam fire at you. Down them safely, wait out the burning ground, then loot.
| Item | Quantity |
|---|---|
| Camera lenses | 3 |
| Damaged heat sink | 1 |
| Firefly burner | 1 |
| Voltage converters | 3 |
How to gather tricky items
You find most items in industrial factories, warehouses, offices, or residential areas depending on the phase. For comet igniters, watch skies on open maps and strike fast before explosion. Fireflies patrol like other flyers—use cover, shoot accurately, and dodge fire pools post-kill. Stockpiling from regular raids means you might finish fast.
Rewards
For completing the project, you will get the following rewards:
- 250 x Raider Tokens
- 1 Backpack Charm
Expedition benefits are provided upon completion, boosting your base capabilities under Shrouded Sky rules. Expect further progression perks like enhanced monitoring tools for future raids.
