Tempest

Tempests are a game mechanic introduced in the Tempest league. Tempests appear as small swirling circles which appear for 4 seconds and then detonate, applying their effect within their area.

Mechanics

Tempests which grant buffs affect players, allies, and monsters within the area of effect, with a base duration of 5 seconds (Resisting Tempests have base duration of 8 second and Resplendent Tempests have a base duration of 20 seconds). Tempests buffs of the same type do not stack; they will instead refresh the duration of the buff.
Tempests which deal damage affect both players and their allies and monsters.
Buffs from Tempests have a grey border and do not scale with buff effect from IchimonjiIchimonji
Corsair SwordOne Handed Sword
Physical Damage: (45-58.5) to (167.4-195)
Critical Strike Chance: 5.00%
Attacks per Second: (1.86-1.94)
Weapon Range: 1.1 metresRequires Level 58, 81 Str, 117 Dex40% increased Global Accuracy Rating(80-95)% increased Physical Damage
Adds (5-10) to (13-20) Physical Damage
(20-25)% increased Attack Speed
10% increased Effect of Buffs on you
10% increased Mana Reservation Efficiency of Skills
Allies' Aura Buffs do not affect you
Your Aura Buffs do not affect alliesMaster yourself before you seek to master others..

Sources

Tempests are considered Extra Content, but do not have a base chance to spawn in areas. They can only be accessed via specific means.

Using a Scarab of Radiant StormsScarab of Radiant StormsStack Size: 20
Limit: 1Area contains a Resplendent TempestThe great cacophony of life roars to a crescendo.Can be used in a personal Map Device to add modifiers to a Map. adds Resplendent Tempests to the map.
The "Corrupting Tempest" special map device crafting option from the Shaping the Skies Atlas passive adds Corrupting Tempests to the map.
Vaal side areas can have the Area is affected by a Corrupting Tempest modifier.
Incursion room controlled by Topotante, Architect of Storms adds a random Tempest to the present day Temple of Atzoatl. The possible type of Tempests depends on the room tier.

Several types of Tempests were also available via Prophecies (which have been removed from the game). It was also sometimes offered as a map crafting option. It was last made available in Version 2.3.0, and it did not return when via The Seventh Gate or in the pool of mods during version 3.24.0, indicating that it is unlikely it will ever return.

List of Tempests

Name	Buff Text	Effect
Corrupting Tempest	Items you find are Corrupted	Items Dropped are Corrupted (monster modifier) Items found by players are Corrupted
Enlarging Tempest	Your Damage and Size are increased, and you take reduced Damage	30% increased Character Size 30% reduced Damage taken 50% increased Damage 300% increased Quantity of Items Dropped (monster modifier)
Radiating Tempest	You have increased Item Rarity and Quantity	1200% increased Rarity of Items Dropped (monster modifier) 600% increased Quantity of Items Dropped (monster modifier) 420% increased Rarity of Items Quantity of Items dropped by slain monsters 70% increased Quantity of Items Quantity of Items dropped by slain monsters
Resisting Tempest	You cannot be Chilled, Frozen, Ignited or Shocked. You have additional Elemental Resistances and maximum Elemental Resistances	You cannot be Chilled You cannot be Frozen You cannot be Ignited You cannot be Shocked +15% to Elemental Resistances +3% to maximum Elemental Resistances
Resplendent Tempest	You have increased Damage Reduction, Item Rarity and Quantity, decreasing over time	1000% increased Toughness (monster modifer)^{[confirmation needed]} 1400% increased Quantity of Items Dropped (monster modifier) 1000% increased Quantity of Items Dropped (monster modifier) 50% additional Damage Reduction, decreasing by 1% every 0.4 seconds 50% increased Rarity of Items Quantity of Items dropped by slain monsters, decreasing by 1% every 0.4 seconds 50% increased Quantity of Items Quantity of Items dropped by slain monsters, decreasing by 1% every 0.4 seconds (it is currently unknown if the buffs on monsters also decay)
Restorative Tempest	You are regenerating Life and Mana	10% of Mana Regenerated per second 10% of Life Regenerated per Second
Shrinking Tempest	Your Damage and Size are reduced, and you take increased Damage	30% reduced Character Size 30% increased Damage taken 50% reduced Damage 300% increased Quantity of Items Dropped (monster modifier)
Stinging Tempest	You always deal Critical Strikes	All hits are Critical Strikes ?% increased Quantity of Items Dropped (monster modifier)

List of removed Tempests

Please update and correct the list below. Duplicate entries exist because of difficulty differences. Sometimes their effect differs slightly. Only remove if you're 100% sure the effects are the same

Prefixes

Name	Buff Text	Colour	Effect	Lowest Difficulty Found In
Scathing Tempest	You always deal Critical Strikes.	White	All hits are Critical Strikes Extra gore	Cruel
Echoing Tempest	Your skills are repeated.	Blue Echoing Tempest ingame picture	50% more cast speed 50% more attack speed Skills Repeat an additional Time	Cruel
Divine Tempest	You cannot be Damaged.	Yellow Divine Tempest ingame picture	Cannot be Damaged	Merciless
Shining Tempest	You have increased Item Rarity and Quantity.	Yellow Shining Tempest ingame picture	600% increased Rarity of Items dropped by slain enemies 300% increased Quantity of Items dropped by slain enemies 120% increased Rarity of Items found 30% increased Quantity of Items found
Seething Tempest	A portion of your Physical Damage is gained as Fire Damage, you always Ignite, and you deal increased Fire Damage.	Fire	Gain 50% of Physical Damage as Extra Fire Damage 50% increased Fire Damage Always Ignite	Normal
Shivering Tempest	A portion of your Physical Damage is gained as Cold Damage, you always Freeze, and you deal increased Cold Damage.	Ice	In Normal+: Gain 50% of Physical Damage as Extra Cold Damage 50% increased Cold Damage 100% chance to Freeze In Cruel+: 50% reduced Freeze Duration on Enemies	Normal
Freezing Tempest	Frozen solid	Ice	Staying inside the detonation will freeze you for a few seconds. Also destroys monster corpses accordingly	Normal
Galvanizing Tempest	A portion of your Physical Damage is gained as Lightning Damage, you always Shock, and you deal increased Lightning Damage.	Lightning	Gain 50% of Physical Damage as Extra Lightning Damage 50% increased Lightning Damage Always Shock	Normal
Brisk Tempest	Vaal Grace Aura Grants Dodge chance	Green	Grants Vaal Grace Aura: 25% chance to Dodge Attacks 25% chance to Dodge Spell Damage	Cruel
Shimmering Tempest	Vaal Discipline Aura Grants Energy Shield and prevents Energy Shield Recharge from being delayed by Damage	Blue Shimmering Tempest ingame picture	Grants Vaal Discipline Aura: 1000 to maximum Energy Shield Energy Shield Recharge not delayed by Damage	Cruel (?)
Quickening Tempest	Vaal Haste Aura Grants increased Cast, Attack and Movement Speeds.	Yellow Quickening Tempest ingame picture	Grants Vaal Haste Aura: 30% increased Attack Speed 30% increased Cast Speed 30% increased Movement Speed
Impure Tempest	Taking Elemental Damage instead heals you	Red	Taking Elemental Damage instead heals you
Obscuring Tempest	Smoke shrouds you.	Green		Cruel
Ethereal Tempest	Your movement is not blocked by enemies. You have an a chance to Dodge Attacks and Spells.	Teal	Your movement is not blocked by Enemies 25% chance to Dodge Attacks 25% chance to Dodge Spell Damage
Devouring Tempest	Nearby corpses are devoured to heal you.	Red
Proximity Shield	You cannot be harmed by direct damage from enemies outside the shield.	Yellow Proximity Shield ingame picture	You cannot be harmed by direct damage from enemies outside the 25 units shield
Sharding Tempest	You gain four additional projectiles, and you fire your projectiles in a nova. You have increased area of effect.	Teal	Projectiles fire in a nova 4 additional Projectiles 30% increased Radius of Area Skills	Normal
Veiling Tempest	Your Elemental Resistances are Zero, and your Light radius is reduced.	Blue Veiling Tempest ingame picture	Elemental Resistances are Zero 40% reduced Light Radius	Cruel
Abyssal Tempest	Your Damage is Converted to Chaos Damage.	Purple	50% of Fire Damage Converted to Chaos Damage 50% of Cold Damage Converted to Chaos Damage 50% of Lightning Damage Converted to Chaos Damage 50% of Physical Damage Converted to Chaos Damage	Cruel
Consuming Tempest	You gain Soul Eater stacks as you kill nearby enemies	Orange	Grants Soul Eater: 1% increased size per soul 5% increased attack speed per soul 5% increased cast speed per soul 5% increased damage reduction per soul Enemies' Soul is consumed on death 1
Molten Tempest		Fire	Randomly casts a fire spell: Fire Storm Fire Golem Flame Totem Burning Ground	Normal
Infernal Tempest		Fire
Glacial Tempest		Ice	Randomly casts a cold spell: Ice Storm Glacial Cascade Cold Snap Ice Golem	Normal
Arctic Tempest		Ice	Randomly casts a cold spell: Ice Storm Glacial Cascade Cold Snap Ice Golem Frost Wall Vaal Ice Nova	Cruel
Static Tempest		Lightning	Randomly casts a lightning AoE spell: Lightning Storm Shock Nova Ball Lightning Shocked Ground with DoT effect	Normal
Electrocuting Tempest		Lightning	Randomly casts a lightning spell: Lightning Storm Shock Nova Ball Lightning Lightning AoE Conductivity Vaal Spark Storm Call	Cruel
Ghastly Tempest		Teal	Randomly summons: Raging Spirits Skeletons	Normal
Morbid Tempest		Teal	Randomly casts one of the following minion spells: Summon Raging Spirit Summon Skeletons Vaal Summon Skeletons Desecrate	Cruel
Battering Tempest		White	Randomly casts a physical spell: Spike Rain Shockwave Ground Slam Hurricane	Normal
Crushing Tempest		White	Randomly casts a physical spell: Spike Rain Shockwave Ground Slam Hurricane	Cruel
Blasphemous Tempest		Purple	Casts a random curse (all curses)	Cruel
Transmogrifying Tempest	Non-Unique Items you find, excluding Currency, Gems and Maps drop as their sell price.	Orange	Enemies' dropped non-unique equipment drops as their sell price Non-unique equipment you find drops as their sell price 1	Normal
Refining Tempest	Items you find have Quality.	White	Items dropped by monsters have random quality Items found by players have random quality	Normal
Energising Tempest		White	Gain three of every charge when standing in the explosion	Normal
Revealing Tempest	Items you find are identified	Red		Normal
Poisonous Tempest		Green		Normal
Arcane Tempest	You have increased Elemental Damage and Cast Speed. You gain 10 life over one second when you cast a spell.	Purple	30% increased Elemental Damage 20% increased Cast Speed Regenerate 10 Life over 1 second for each Spell you Cast	Normal

Suffixes

These modifiers were only present in Tempest league.

Name	Area modifiers	Difficulty
of Aberrance	Rare Monsters each have a Nemesis Mod Magic Monster Packs each have a Bloodline Mod map_all_monster_packs_rare_and_allow_magic 0
of Angling	map_tempest_fish_school_size_+% [20, 50]
of Animation	Weapons drop animated. They will become enemies and attack you, dropping the original item when animated weapon is killed. Killing animated weapons grant experience.
of Cataclysm	50% reduced tempest duration 40% less storm delay
of Combustion	Area has patches of burning ground 20 burning ground patches per 100 tiles Burning ground patches have a radius of 14 +25% Monster Fire Resistance
of Contamination	Area has patches of desecrated ground 20 desecrated ground patches per 100 tiles Desecrated ground patches have a radius of 14 Monsters Poison on Hit
of Corruption	All items drop corrupted
of Desperation	40% increased duration of tempest buff on low life targets
of Destiny	One random monster drops a map on death
of Fate	One random monster drops a Vaal Fragment on death
of Fire	Area has patches of burning ground 15 burning ground patches per 100 tiles Burning ground patches have a radius of 14 +15% Monster Fire Resistance
of Fortune	One random monster drops a Unique Item on death
of Fulmination	Area has patches of shocking ground 20 shocking ground patches per 100 tiles Shocking ground patches have a radius of 14 +25% Monster Lightning Resistance
of Ice	Area has patches of chilled ground 15 chilled ground patches per 100 tiles Chilled ground patches have a radius of 14 +15% Monster Cold Resistance
of Incursion	Adds 10 Invasion Bosses
of Influence	50% increased tempest Area of Effect
of Inspiration	15% increased experience gained	Merciless
of Intensity	50% less tempest delay 25% less tempest buff duration
of Lightning	Area has patches of shocking ground 15 shocking ground patches per 100 tiles Shocking ground patches have a radius of 14 +15% Monster Lightning Resistance
of Phantoms	Area is haunted by 10 additional Tormented Spirits
of Poison	Area has patches of desecrated ground 15 desecrated ground patches per 100 tiles Desecrated ground patches have a radius of 14 Monsters Poison on Hit
of Precision	30% reduced tempest Area of Effect 25% less tempest delay
of Revelation	50% increased experience gained
of Runic Circles	map_summon_runic_circles 1
of Superiority	All items have random quality
of Transmogrification	Non-unique equipment drops as sell price
of Turmoil	Area is inhabited by 20 additional Rogue Exiles
of Winter	Area has patches of chilled ground 20 chilled ground patches per 100 tiles Chilled ground patches have a radius of 14 +25% Monster Cold Resistance
of the Ancestors	Area contains many Totems

Trivia

In the Tempest league, Tempests were globally set for each area, and randomized hourly. Not all areas had a tempest each hour, but the chance for spawning one was 50%. Existing instance of an area retained old tempests. After the Tempest league ended, Tempests were not added to the core game. The Tempest mechanic were previously also accessible via prophecy.

Version history

Version	Changes
2.6.0	Tempests capable of harming a player now only spawn in the broad vicinity of alive monsters.
2.1.1c	Fixed various Tempests causing instance crashes.
2.1.0	Fixed a bug where some Tempest effects lasted longer on minions than on players.
2.0.2d	The Stinging and Scathing Tempests no longer grant affected players increased Item Quantity.
2.0.2	Fixed a bug where monsters dying to Tempests could sometimes drop no items.
2.0.1	Fixed a bug where harmless Tempests could appear in towns.
2.0.0e	The duration of freeze caused by Freezing Tempests has been reduced. The duration of the buff caused by Restorative Tempests has been reduced on monsters. Restorative Tempests can no longer appear in areas with notable Act boss encounters.
2.0.0g	Many of the dangerous Tempest prefixes now grant additional item quantity (+15% or +20% rather than the base +10%). Tempest names now display correctly in maps. The Tempest markers now trigger more quickly on average. Normal difficulty has been reduced from an average of 5 seconds to an average of 3.75 seconds. The later half of Merciless has been brought in-line with Maps. Fixed a bug where Tempest Fire/Spine/Lightning/Ice storms could become invisible. The Abyssal Tempest now converts 50% of damage to chaos, rather than 100%. The Morbid Tempest now uses Vaal Summon Skeletons less often. Reduced the duration of Veiling tempest on players. Reduced the duration of Abyssal Tempest on monsters. Reduced the duration of Transmogrifying Tempests on both players and monsters. Monsters affected by Transmogrifying Tempests now drop significantly more items (double for normal monsters). Items spawned by Transmogrifying Tempests now stack their shards. Items dropped by Rogue Exiles are now transmogrified correctly. Jewels are now transmogrified correctly. Updated the buff definition of Transmogrifying Tempest to more accurately state what isn't transmogrified. It now reads: "Non-Unique Items you find, excluding Currency, Gems and Maps drop as their sell price." Animated Weapons from Tempests of Animation no longer fracture.
2.0.0d	Areas currently affected by Tempests now have a 10% Item Quantity bonus. Tempests no longer occur in the final area of Cruel difficulty. They already didn't occur there in Normal difficulty. Removed Vaal Ice Nova from the Arctic Tempest. Elemental and chaos damage themed Tempest suffixes no longer affect the damage dealt by monsters in that area. They also create less dense ground effects. The old elemental versions of these suffixes can still appear in maps, but with different names.(Tempest of Combustion, Tempest of Winter, Tempest of Fulmination) The old chaos version (now called Tempest of Contamination) no longer affects damage dealt by monsters, but still has the full ground effect.
2.0.0c	Fixed a bug where the Freezing Tempest could freeze characters with Cannot be Frozen.
2.0.0b	Fixed a bug with the Enlarging and Shrinking Tempests where they incorrectly displayed that they changed life values. They actually modify incoming damage in addition to their other effects.
2.0.0	Introduced to the game (In hotfix patch) Fixed a bug with Tempest Storms where more players could cause fewer storms to spawn.