Aviation Forecast Discussions Data
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    Steady and widespread rain is expected to develop late tonight
    into early Thursday morning, with locally heavy rain at times.
    Strong wind shear is also expected for the rest of today and
    into early Thursday morning. Strong low-level wind shear will
    persist through tonight with up to 65 kts at 3kft.
    Winds will start from the south early on Thursday and will become
    northwesterly behind the cold front. Winds could gust up to 30 knots
    at times on Thursday, 40 kts near IAD/DCA/BWI especially with
    heavier convective elements Thu AM. Visibilities and CIGS will
    be improving through the day Thursday as the front moves away.
    Mainly VFR Thu night-Fri night, though brief sub-VFR possible in
    -SHSN for northern terminals associated with disturbance. Gusty
    NW winds behind front possible Fri night.
    VFR conditions are likely on Saturday and Sunday, as high pressure
    dominates the region. The best chance for any restrictions will come
    on Sunday night, if precip can make it east of the mountains.