Here are the forecast wind gusts at 5am MST Tuesday morning. Of course, the wind pattern will change during the morning. The point of posting this is to show that extreme winds will accompany the snow in eastern Colorado, thus the blizzard warning.
Here are the forecast precipitation conditions, first at 7pm MST this evening.
And, here is the forecast precipitation at 7am MST Tuesday morning
Here are the AccuWeather snow amount forecasts:
AccuWeather has more details.
If you are planning to travel to or through Denver tomorrow, there is a very good chance of flight delays. You might want to call the airline to see if you can be re-routed around Denver.