Aviation Forecasts Discussions (AFD) INFO

(EXTRACTED FROM FXUS66 KSEW 202315)


    A strong cold front will reach the coast and move
    inland on Sunday morning. S-SE surface wind will become strong in
    advance of the front tonight. Strong 850-700 mb winds will peak
    near 70 knots from the southwest on Sunday morning. The air mass
    will be moist and somewhat stable. A few hours of heavier rain
    are expected Sunday morning, just in advance of the front.
    Easterly wind component will generally hold cigs above 025, except
    lower near Hood Canal.
    
    KSEA...A few passing showers til 02z (6 pm), then dry for this
    evening. Cigs will slowly lift through this evening as low-level
    wind takes on a drying easterly component. S-SW winds aloft will
    strengthen this evening and overnight, meeting the criteria to
    include low-level wind shear in the TAF after 04z (8 pm). Strong
    winds aloft expected Sunday morning. Winds aloft will peak 15z-18z
    Sunday morning. At 045 will peak SW 65 knots, and 2000-foot winds
    will peak southerly around 50 knots. Haner