Strong winds in the upper levels of the atmosphere. This time of year, storms are easy to come by around the foothills of the Rocky Mountains but strong jet stream energy is going to try to organize them this afternoon. We saw how well it can organize storms on Friday, with a tornado-warned storm dropping baseball-sized hail in Cheyenne.
Here we go again this afternoon. Storms will get going anytime after 2 PM MT and be capable of large hail and damaging winds. Some of those severe threats could reach the high-end side of the scale, with 75 mph+ winds possible along with egg-sized hail or larger.
Those threats will really ramp up out into the plains of Colorado and the panhandle. Some models are pushing the timeframe of the peak intensity near the dinner hours.
Guess what we're doing tomorrow. More of the same - right now the Storm Prediction Center has a MARGINAL risk for severe thunderstorms for many of the same locations.