Aviation Forecasts Discussions (AFD) INFO


    South-Central Arizona including KPHX, KIWA, and KSDL:
    A cold front moving through south-central Arizona late the
    afternoon/early evening has produced strong winds and lofted a
    considerable amount of dust. Surface visibilities will generally
    be in the 6SM-10SM range with local spots dipping to 4SM until
    about 02Z when winds weaken more significantly. With the lofted
    dust, expect significantly decreased slantwise visibilities. The
    lofted dust will slowly decrease tonight. Ceilings at FL070-090
    will scatter out from west to east beginning about 02Z. Isolated
    very light showers/sprinkles before then. Surface wind directions
    will favor the northwest quadrant after 02Z but will hold onto a
    west component for much of the night. Winds above the surface will
    weaken tonight (most noticeably within the lowest 5kft) but will
    generally hold a west component.
    Southeast California/Southwest Arizona including KIPL and KBLH:
    West and northwest winds will continue to weaken this evening with
    only some isolated/scattered cumulus (mainly near the higher
    mountains). Lofted dust will cause reduced slantwise visibilities
    (especially over Yuma and Imperial Counties) into the early
    evening before slowly improving (lingering for several hours
    Aviation Discussion not updated for amended TAFs.