Colorado’s first fall weekend could be cool, soggy and snowy in some areas. A low-pressure storm system packing moisture from the Gulf of California is developing over the Southwest desert and tracking toward the state, said David Barjenbruch, a meteorologist at the National Weather Service in Boulder.

A strong upper level trough will arrive early Saturday morning bringing significantly cooler air and accumulating snow, at least across portions of the high country.

The weather in Colorado will either be very exciting for some people or very disappointing for others this weekend. In the waning days of summer, snowfall is expected to hit parts of Colorado.