5:00 a.m. Severe Weather Briefing For June 12th, from the National Weather Service

The National Weather Service in Riverton says there's strong potential for severe weather to develop Monday afternoon and evening. A strong upper level low pressure system will be moving across the northern Great Basin during the day, and the Weather Service says the environment ahead of the system will be favorable for severe thunderstorms to develop across much of central and northern Wyoming.

This means the threat of isolated tornadoes, large hail, strong winds, and dangerous lightning.