Parts of Utah are facing sub-freezing temperatures over the next day.
The National Weather Service issued a "hard freeze" warning Sunday that is expected to last until 10 a.m. Tuesday.
The warning means outdoor plumbing and crops that have no protection could sustain significant damage.
Temperatures could drop down to the mid-20s or lower.
The conditions are related to a snowstorm that has dumped record amounts of snow on the northern Rocky Mountains.
Parts of Montana, Idaho, Washington state are getting winter storm warnings.
Snow is also forecast for parts of Wyoming, Oregon, Nevada and California.