A plume of tropical moisture will stream through New Mexico and Colorado to start the weekend...bringing the possibility of showers and thunderstorms across southern and eastern Colorado Friday and Saturday. Temperatures are expected to be cooler Friday...especially across the eastern plains...then warm again starting Saturday. Highs Friday will range in the 50s and 60s in the mountains...the 60s to mid 70s in the southern valleys...and in the mid 70s through the 80s over eastern Colorado. (Please visit http://weather.gov/pub for more information.)