Aviation Forecast Discussions Data
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    Surface low pressure centered between GRR and MBS will quickly move
    northeast into Canada by 00z. Associated cold front will sweep
    through southeast Michigan during the 21-00z time frame.  Light
    rain, drizzle, fog and ifr ceilings will prevail along and ahead of
    the front along with brisk SSW flow gusting to around 22kts.  After
    passage precip will quickly come to an end with fog lifting shortly
    after. Low IFR stratus will lift slightly overnight into the 1k-2k
    ft range then lifting to high end MVFR Thursday morning.  Winds will
    sharply turn to the WNW after passage with post frontal gusts to
    around 20kts.
    For DTW...IFR ceilings, drizzle, light rain and visibilities varying
    1 to 5sm and brisk SSW flow will continue until frontal passage
    around 00z. Precip will quickly end with passage. Fog will quickly
    lift post frontal while IFR stratus slowly lifts to low end MVFR
    tonight and high end MVFR Thursday. WNW flow mainly around 10kts
    after cold front passage will prevail through end of TAF period.