While the temperature is 40 or higher, Burnt Sands gets +2
Forced: After Burnt Sands becomes the active location, increase the temperature by 2.
...all seemed ruinous and dead, a desert burned and choked. –The Return of the King
X is the tens digit of the temperature.
Forced: After Scorched Hamada becomes the active location, assign X damage among characters in play.
Shadow: Raise your threat by X, where X is the tens digit of the temperature.
While Parched Wadi is in the staging area, each Creature enemy gets +1 and +1 
Forced: After Parched Wadi becomes the active location, shuffle the encounter discard pile into the encounter deck and discard cards from the top until a Creature enemy is discarded. Add that enemy to the staging area.
While Towering Dunes is in the staging area, progress cannot be placed on locations in the staging area not named Towering Dunes.
Forced: After Towering Dunes becomes the active location, reveal the top card of the encounter deck.
While Desert Oasis is the active location, it gains:"Response: When Desert Oasis is explored, heal 4 damage from among characters in play."
Forced: After Desert Oasis becomes the active location, each player exhausts a character he controls.
Immune to player card effects.
The players cannot travel here unless there are at least 20 progress tokens on stage 4B.
Travel: Reveal 1 encounter card per player.
Stage 4B cannot be defeated while River Harnen is in play.
While the players are not at the same stage as the Orc's stage, Expanse of Harad gets +2
Forced: After Expanse of Harad becomes the active location, raise each player's threat by 2.
The wide plains opened grey before them.
–The Two Towers
X is the stage number of the main quest.
Forced: After Blistering Erg becomes the active location, each player assigns X damage among characters he controls.
It seemed a long way, and he grew hot and very hungry...
–The Return of the King
When Revealed: Add Harad Road to the Orc's area.
Shadow: If the players are not at the same stage as the Orcs, move attacking enemy to the Orc's area after this attack.
While The Serpent's Redoubt is in the staging area, it gains:"Forced: After a player plays an ally from his hand, either remove 1 progress from the main quest, or exhaust that ally."
Travel: The first player searches the encounter deck and discard pile for an enemy and puts it into play engaged with him. Shuffle the encounter deck.
While Roofless Tower is in the staging area, it gains:"Forced: When a player plays an event, either remove 1 progress from the main quest, or cancel the effects of that event."
Travel: Exhaust a hero to travel here.
Desert Bastion gets +1 for each Harad objective attached to a hero.
Shadow: Attacking enemy gets +1 for each Harad objective the players control.
While Southron Camp is in the staging area, it gains:"Forced: At the end of the round, remove all progress from each location in play."
Travel: Raise each player's threat by 1 to travel here.
While Broken Courtyard is in the staging area, the main quest cannot have progress tokens beyond its printed quest points value.
Shadow: Either remove 2 progress from main quest, or return attacking enemy to staging area after this attack.
X is the highest number of characters controlled by a single player.
Forced: After Desolate Land becomes the active location, choose 1 random card from the set aside encounter set with the most cards remaining. Reveal that card as if it was part of the encounter deck.
Forced: After Harondor Waste becomes the active location, choose 1 random card from the set aside encounter set with the most cards remaining and place it in the encounter discard pile. Then, shuffle the encounter discard pile into the encounter deck.
Shadow: Return the attacking enemy to the staging area after this attack.