FLAGSTAFF, Ariz. - It's the second week of May, and yes, there's still snow falling in Arizona. 

According to the National Weather Service in Flagstaff, snowfall in the Flagstaff-Bellmont area has surpassed a half-inch Tuesday morning.

Drivers should be cautious of slick roads.

Isolated thunderstorms found their way into the Phoenix area Monday afternoon and evening -- more rain came overnight.

Tuesday in the Valley was cool and cloudy with developing showers throughout the day. Showers came to the Phoenix area in the evening.