Pacific moisture will start to make its way into western Wyoming today. Snow will start to fall in the western mountains. Meanwhile, further south and in the lower elevations some areas will see some late February rain showers, but by evening and into tonight those showers will quickly switch to snow.
The abundant moisture moving in from the west will combine with a cold front that will move through the state on Friday. The relatively mild, moist air mass from the west coming in contact with the much colder air mass from the north will put much of the state in a good position for snow Friday, Friday night and Saturday. Travelers and livestock interests will need to be ready for deteriorating weather conditions on Friday.
A Winter Storm Watch is in effect for much of the state Friday through early Sunday morning. The area around Sheridan and the Sierra Madre and Snowy ranges are under Winter Storm Warnings, Watches and Winter Weather Advisories as well.
Snow starting in the west today will spread east throughout the day Friday and into Saturday. Snow, reduced to poor visibility, icy, snow packed roads and much colder temperatures are to be expected. Highs in Friday will be mainly in the teens and 20s, with perhaps a few 30s in the far south. By Saturday, most areas of the state will only be in the single digits and teens.
Be advised that weather conditions will be treacherous and traveling will be hazardous throughout much of the state Friday and Saturday.