Aviation Forecasts Discussions (AFD) INFO

(EXTRACTED FROM FXUS63 KEAX 031750)


    (For the 18Z TAFS through 18Z Wednesday Afternoon)
    Issued at 1150 AM CST TUE MAR 3 2015
    
    Challenging aviation forecast as terminals currently reside between
    two independent frontal boundaries. Drier air is currently working
    into the region this afternoon which has led to a gradual raising of
    cigs over the past hour or so. Latest VIS satellite is actually
    showing some breaks off to the west which may hold together long
    enough to allow an improvement to VFR later this afternoon. For
    now...have decided to advertise this possibility with a TEMPO VFR
    group starting at 20 or 21z depending on terminal. Following
    this...all available guidance suggests the return of MVFR cigs after
    00z as post frontal stratus works south over the region. By early
    morning...high pressure nosing in from the north should allow a
    gradual scattering of low stratus towards sunrise. Winds will
    continue veering through the afternoon before becoming northerly by
    early evening. Cold air advection should maintain speeds in the 10-15
    kt range overnight.