A winter storm warning has been issued for the Sierra Nevada, predicting up to 4 feet of snow and winds reaching 70 MPH, which could severely impact travel on highways. Authorities are urging caution as conditions are expected to worsen.

Travel delays are anticipated for the high country, with snow and rain creating hazardous conditions until Friday night. Meanwhile, the Western Slope will experience a mix of sunny and cloudy skies, providing a contrast to the storm's intensity in the mountains.