A moist and unstable atmosphere will lead to additional shower and thunderstorm activity this afternoon and evening.  Showers and thunderstorms will be most likely across central, south-central, eastern and especially southeastern Wyoming.

Southeastern Wyoming will have the biggest threat of severe weather today with large hail and very heavy rain possible.  We can not rule out isolated tornadic activity.

As we look ahead to our long Memorial Day weekend we will continue to be in a stormy weather pattern.  Look for possible widespread shower and thunderstorm activity except for in far western and northwestern areas.  Flooding will be concern at times, especially in and around the Sierra Madre and Snowy Range mountains and across areas of southeastern Wyoming.