Simple RAW Thread for 3.5 #33: Doesn't everything popular die when 33?

[Thurbane]

Q 498

Where can I find rules for visibility range? The spell "Cloudburst" from SpC says "The rain reduces visibility ranges by half" but I can't seem to find them

There are several factors that influence visibility range (this list may not be exhaustive):

Sandstorms
A sandstorm reduces visibility to 1d10×5 feet and provides a -4 penalty on Listen, Search, and Spot checks.

Stealth and Detection Underwater
How far you can see underwater depends on the water’s clarity. As a guideline, creatures can see 4d8×10 feet if the water is clear, and 1d8×10 feet if it’s murky. Moving water is always murky, unless it’s in a particularly large, slow-moving river.

Stealth and Detection in a Forest
In a sparse forest, the maximum distance at which a Spot check for detecting the nearby presence of others can succeed is 3d6×10 feet. In a medium forest, this distance is 2d8×10 feet, and in a dense forest it is 2d6×10 feet.

Stealth and Detection in Plains
In plains terrain, the maximum distance at which a Spot check for detecting the nearby presence of others can succeed is 6d6×40 feet, although the specifics of your map may restrict line of sight.

Stealth and Detection in a Marsh
In a moor, the maximum distance at which a Spot check for detecting the nearby presence of others can succeed is 6d6×10 feet. In a swamp, this distance is 2d8×10 feet.

Stealth and Detection in Hills
In gentle hills, the maximum distance at which a Spot check for detecting the nearby presence of others can succeed is 2d10×10 feet. In rugged hills, this distance is 2d6×10 feet.

Stealth and Detection in Mountains
As a guideline, the maximum distance in mountain terrain at which a Spot check for detecting the nearby presence of others can succeed is 4d10×10 feet.

Stealth and Detection in the Desert
In general, the maximum distance in desert terrain at which a Spot check for detecting the nearby presence of others can succeed is 6d6×20 feet; beyond this distance, elevation changes and heat distortion in warm deserts makes spotting impossible. The presence of dunes in sandy deserts limits spotting distance to 6d6×10 feet.