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.

It’s going to be a cold, wet weekend in Colorado as rain showers and thunderstorms move in on the metro area and the mountains prepare for snow, according to the National Weather Service. Friday will be the last day of above-normal temperatures and dry conditions before thunderstorms and snowy weather hit Colorado on Saturday,

Showers continue to work their way north, with an increasing chance for some heavier rain from time to time. Eventually, with dropping temperatures, the snow line will start to drop as well. It hovered around 11,