During winter months, fog can obscure visibility while driving.

The sudden rain misted the green slopes, obscuring visibility and making it hard to see very far.

Dirty screens can also obscure visibility and restrict air flow.

The CS gas had spread enough that it obscured visibility on the stairs.

The railway bridge can take only one vehicle at a time and obscures visibility.

If gravel and other road debris hits your windshield, it may leave nicks and chips that can obscure visibility.

The jib comes quite low on deck and can obscure forward visibility.

But aside from obscuring visibility, how do extreme climates affect trucks?

Smoke can obscure visibility, impeding occupant exiting from fire areas.

Eventually, having studied their tactics, the Captain made an effective counter-attack and scattered them, capturing one before bad weather obscured visibility.