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    (For the 18Z TAFS through 18Z Sunday afternoon)
    Issued at 1203 PM MDT Sat Jul 31 2021
    As of 18Z, ssolated showers and storms have started to pop-up as
    expected, particularly over the high terrain. By mid to late
    afternoon, this activity will become more widespread, especially
    over western Colorado. VCTS likely at most TAF sites with best
    potential for impacts after 23Z as storms drift off high terrain
    into adjacent valleys. Can expect heavy rain, frequent lightning,
    gusty outflow winds to 40 kts and hail with the stronger storms.
    Expect generally VFR with lowered CIGS/VSBY in showers and storms
    with brief reductions to MVFR/IFR. The central and southern
    mountain corridor of western Colorado looks to see periods of
    steady light to moderate rain in the evening and potentially
    overnight, with pockets of heavy rain in thunderstorms.