Aviation Forecast Discussions Data
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(EXTRACTED FROM FXUS61 KLWX 210122)


    
    Gusty thunderstorms will frequent lightning and very heavy
    downpours have exited to the south of the CHO terminal. The MRB
    terminal will have window of an hour or two of sprinkles or a
    shower in the vicinity before additional showers approach from
    southwest Pennsylvania. Heavy rainfall will become light over
    the next hour or two at IAD, DCA, BWI and MTN.
    
    Any heavy showers or thunderstorms overnight would be mainly
    near CHO, MRB or IAD and could reduce conditions briefly to MVFR
    with wind gusts briefly over 30 knots. Otherwise, MVFR to VFR
    conditions anticipated overnight. Patchy low clouds and fog are
    possible overnight, as well, into Thursday morning due to low-
    level moisture being trapped underneath the subsidence
    inversion.
    
    Mainly VFR conditions are expected later Thursday through
    Thursday evening. There will be a few showers and thunderstorms
    possible, especially near KCHO. More widespread showers and
    possible thunderstorms are expected overnight Thursday through
    Friday night. An onshore flow will also lead to low clouds as
    well.
    
    Low ceilings and visiblities may be possible Saturday morning
    until a warm front lifts north of our area. Showers and
    thunderstorms will be possible both Saturday and Sunday
    afternoon.