Aviation Forecast Discussions Data
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    as of 09:31 AM PST Saturday...For 18z tafs. Mid to
    high level clouds continue to stream over the region obstructing
    the view of low clouds at the surface. Observations report MVFR
    conditions across the North Bay and Bay Area taf sites. Expecting
    MVFR cigs to lift over the next couple of hours to VFR with cigs
    remaining at around 4,000 to 5,000 feet. Expect MVFR and possibly
    IFR cigs to return overnight ahead of an approaching frontal
    system that will bring scattered showers to the region tomorrow.
    Winds will remain light through the day before increasing and
    turning onshore tomorrow afternoon behind the front.
    Vicinity of KSFO...MVFR cigs forecast to lift over the next couple
    of hours to VFR. Cigs will remain in place at around 4,000 to
    5,000 feet with additional high clouds around 10,000 feet or so.
    Cigs will lower to MVFR/IFR overnight ahead of the next front.
    Scattered showers tomorrow and increasing onshore winds.
    SFO Bridge Approach...Similar to SFO.
    Monterey Bay Terminals...VFR through tonight, light winds aside
    from locally breezy southerly winds this morning down the Salinas
    Valley. Cigs will lower overnight to MVFR/IFR ahead of the next