There’s a red flag warning in southern Utah — and a slight chance of snow in Salt Lake City

Temperatures will drop below normal in northern Utah on Thursday.

(National Weather Service) There's a red flag warning in southwestern Utah on Monday and Tuesday.

The National Weather Service has issued a red flag warning for part of southwest Utah until 10 p.m. Tuesday.

The warning indicates that winds and extremely low humidity are expected to create critical fire conditions. “Any new fire starts could spread rapidly,” according to the weather service.

The affected area includes Cedar City, Bryce Canyon National Park and Escalante.

Winds of 10-20 mph, with gusts up to 30 mph, are expected Tuesday afternoon, according to the National Weather Service. And the forecast calls for 10-15% humidity.

Isolated thunderstorms and “localized, brief critical fire weather conditions” are possible across eastern Utah continuing through Sunday. The affected area includes Vernal, Moab, Monticello, Blanding and Bluff.

(National Weather Service) There could be thunderstorms in northern Utah on Monday afternoon and evening.

In Salt Lake City, the National Weather Service is forecasting highs in the mid- to upper 70s on Tuesday and Wednesday, with overnight lows near 50 — just about normal for this time of year.

A cold front is then expected to move in and drop temperatures to the mid-60s on Thursday and the lower 60s on Friday. The overnight low on Thursday is forecast at just 38, and there’s a slight chance of rain mixed with snow.

Temperatures will rise to the low 60s on Saturday and the upper 60s on Sunday.

The forecast for southern Utah is sunny skies and mostly hotter than normal (85-88) for this time of year, projected in the mid- to upper 90s through Thursday; the mid-80s on Friday; then back up into the 90s on Saturday and Sunday.