A severe winter storm hit the western U.S. bringing hazardous travel conditions, dangerously lowering temperatures and threatened crops as far south as California.

Meteorologists say the jet stream has moved significantly further south than normal bringing arctic temperatures into the northwest. AccuWeather reported that temperatures could fall as much as 40 degrees below normal this weekend and a second winter blast could follow in a few days.

Areas of Montana saw temperature forecasts as low as the minus-20s. Officials say that when temperatures reach that low, even a little breeze can cause enough wind chill to be dangerous.

The storm also dumped heavy snow across the northwest part of the country including up to 2 feet in the Rocky Mountains. Ice and snow created dangerous driving conditions and contributed to a four car crash in Montana that killed a 21-year-old woman.

The system is pushing so far south that forecasters say Texans currently experiencing 80 degree days will see lower 40s by Thursday.