The defense applies to natural events occurring without human agency and of a severity that reasonable precautions could not address. Foreseeable natural conditions do not qualify.

It is distinct from contractual force majeure.

Alternative Names:

Force Majeure (Tort), Vis Major

Why it Matters?

Foreseeability defeats the defense in most weather cases, since storms, floods, and freezing conditions are anticipated in most regions and a defendant is expected to prepare for conditions that recur. The defense succeeds for genuinely extraordinary events exceeding historical experience. Where human conduct contributed, such as inadequate maintenance that a storm then exposed, the defense fails entirely.

Frequently asked questions

Why do weather defenses usually fail?

Why do weather defenses usually fail?

Because storms and freezing conditions are foreseeable in most regions, and defendants are expected to prepare for recurring conditions.

What defeats the defense entirely?

What defeats the defense entirely?

Contributing human conduct, such as inadequate maintenance that the natural event merely exposed.