* WHAT...Dangerously hot conditions with afternoon temperatures as high as 100 to 106 expected.
* WHERE...In Colorado, Central Yampa River Basin, Lower Yampa River Basin, Debeque to Silt Corridor, and Grand Valley. In Utah, Arches/Grand Flat and Eastern Uinta Basin.
* WHEN...From noon Saturday to midnight MDT Monday Night.
* IMPACTS...Heat related illnesses increase significantly during extreme heat events.
* ADDITIONAL DETAILS...Near record temperatures are possible especially Sunday into Monday during the peak of this event.