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    The air is generally dry and stable except for a few
    patches of clouds--one near KCLM that might finally be breaking up
    this evening. Elsewhere, there are some high clouds, otherwise fair
    skies. Moisture over Oregon will move north into the area starting
    around daybreak Wed and areas of rain should develop by evening as
    the southerly flow aloft continues to draw moisture up into the area.
    KSEA...Fair skies tonight and then mid level clouds increase
    Wednesday as moisture pushes north from Oregon. Rain should develop
    later in the day. Some periods of rain should arrive Wednesday night.