The folks who move south to sunny St. George when the cold weather hits may have felt a little cooler early Thursday than if they had stayed in northern Utah.

The Washington County community had its first frost and a 30-degree reading, the lowest so far this winter. It was 8 degrees warmer than that at 5 a.m. at the Salt Lake International Airport, where it was 33 degrees before midnight Wednesday.One to 2 inches of snow was expected to fall Thursday over the Wasatch and Uinta mountains, while rain may fall in the Cache Valley. Alta ski resort reported an inch of new snow early Thursday.

A high-pressure system will dominate the northern Utah weather picture through at least the middle of next week. No storm is expected, but William J. Alder, meteorologist in charge of the Salt Lake office of the National Weather Service, predicted hazy conditions.

Readings of near 50 degrees were expected Thursday. Low temperatures Thursday night should be in the mid- to upper 30s. Highs Friday are expected to be in the mid-50s.