Much of the state will start to see an increasing chance for developing rain showers and thunderstorms as spring-time instability continues.  Temperatures will rise into the 60's to 70's through the weekend, especially on Sunday.  Cooler temperatures are expected over the mountain regions.  Any thunderstorm activity between today and Saturday, may result in strong gusty winds, heavy downpours and small hail.  Stronger and severe thunderstorms will be possible through the weekend, especially Sunday for central, east-central and southeast Wyoming.  Temperatures will cool down a bit for late Monday and into Tuesday of next week with more rain and thunderstorms likely.

As temperatures warm up through the end of this weekend (and with the increasing chance for rain), flooding and slides will be possible near rivers, creeks and streams and through canyons.  Water levels have the ability to rise fast this time of the year.