Aviation Forecasts Discussions (AFD) INFO

(EXTRACTED FROM FXUS66 KPQR 240512)


    A cold front moved through the region earlier today.
    The cloud cover has scattered behind the frontal passage this
    evening. Dew point depressions are fairly low right now, and
    winds will generally be light, so expect that there will be some
    patchy fog and low stratus formation overnight. However, the air
    mass will remain marginally unstable, and light showers will
    continue to drift onshore tonight. So do not expect fog or low
    clouds will be widespread, with the best chances likely to be at
    the more fog prone spots such as KEUG and KHIO. Expect improving
    conditions through the day tomorrow, with mainly VFR in the
    afternoon and evening. The exception may be at KAST, where a
    system brushing by from the north may bring MVFR cigs starting at
    18Z-21Z.
    
    KPDX AND APPROACHES...Expect generally VFR conditions overnight,
    although some patchy fog or low stratus could form around the
    terminal during the early morning hours. Then expect mainly VFR
    conditions tomorrow. Stray showers are possible tonight or
    tomorrow. Pyle