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Thunder Storm
Updated: Sep 05, 2023
Borderlands 1

Borderlands 1
Thunder Storm

Lightning never strike the same place twice, but it can strike freaking everywhere!
  • Content
    Base Game
  • Weapon Type
  • Rarity
  • Manufacturer
  • Elements

Thunder Storm
All Details

God Roll
Thunder Storm (Eridian-BL1)
Copy Thunder Storm Code

Thunder Storm - About

The Uncommon Eridian Thunder Storm is manufactured by Eridian and comes from the Borderlands 1 Base Game.

Thunder Storm - unique Ability

The Thunder Storm fires 8 ricocheting shock orbs in a broad spread that knock back enemies.

While holding the Thunder Storm:
-25% Movement Speed

Energy System
All Eridians have a 1.3s Regen Delay after firing and they only Cooldown when out of Energy. The Thunder Storm has a Shot Cost of 45.

Thunder Storm - Variants

  • Elements
  • Listed Projectiles
  • Shot Cost
  • Splash Radius
  • Weapon Parts
    fixed parts
  • possible
  • Splash Anoints

Thunder Storm - Eridian Parts

Weapons usually get one part per group, but sometimes multiple or none. Numbers in the top-right  indicate the range of parts a group can have.
Parts usually have equal drop chances, or it's indicated nearby.


  • Body_1-8% Damage
  • Body_2
  • Body_3
  • Body_4
  • Body_5
  • Body_6


  • Mag_1Capacity: 100
    Regen Rate: 7/s
    Cooldown: 4.0s
  • Mag_2Capacity: 130
    Regen Rate: 5.8/s
    Cooldown: 4.0s
  • Mag_3Capacity: 83
    Regen Rate: 9.8/s
    Cooldown: 2.9s
  • Mag_4Capacity: 200
    Regen Rate: 5.8/s
    Cooldown: 5.2s
  • Mag_5Capacity: 130
    Regen Rate: 9.1/s
    Cooldown: 3.3s
  • Mag_6Capacity: 120
    Regen Rate: 9.8/s
    Cooldown: 2.7s

Thunder Storm - Changelog

Thunder Storm
How to Farm

Thunder Storm
Assigned Loot Pool

Thunder Storm
World Drop (BL1)

World Drop

Base Game - World Drop

Borderlands 1 World Drops are items that drop from any suitable Loot Source, like Bosses, regular enemies, red-chests, white-chests, and vending machines.
With 53 unique weapons in the World Drop pool, getting 1 specific weapon is difficult.

Awesome Level

Each Loot Sources has an Awesome Level that determines a rarity's weighting in the World Drop pool.
The higher the Awesome Level the higher is the weighting of Rare, Epic, and Legendary loot.
The drop rates for legendaries range from <1% to 5.6% depending on the Loot Source's Awesome Level.

Lilith's Catalyst and Mordecai's Scavenger Class Mod can increase the Team's Awesome Level by an insignificant amount. But it's notable for low Awesome Level Sources like chests and generic enemies.
Best Loot Sources are:

Thunder Storm
Drop Rates

  • Destroyer Chest
The number next to the Source notes Loot Luck.

Loot Luck Formula


P = Dedicated Loot Pool Chance
L = Loot Luck

Thunder Storm
Grinder Recipe

This recipe requires 1+ DLC-Legendary!
EridianEridianAny Legendary WeaponplusAny Legendary WeaponEridianplusAny Legendary WeaponAny Uncommon WeaponequalsEridianEridianEpic or Legendary PistolEpic or Legendary Shotgun
The Grinder⚙️ recipe for the displayed chances.
Consoles may have a better recipe that's the best on PC.

Thunder Storm
Dedicated Sources

Destroyer Chest

Destroyer Chest

The Vault