D21 Tracon Decision Support

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DTW Flow

DTW Flow (Gust)

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Conv- ection

Snow

1231 PM EDT Thu Aug 21 2025
.AVIATION...

Once again extensive low clouds (borderline MVFR/VFR) over much of
southeast Michigan with northeast winds (10-15 knots). Similar to
yesterday, should see clouds decrease/clear out through the evening
hours. The surface high/ridge axis over the western Great Lakes will
be moving into lower Michigan tonight, which leads to more very
light and variable winds, if not calm. With the diminished influence
from Lake Huron, likely looking at more shallow ground fog vs solid
stratus deck, but confidence is average at best. Looks like subtle
surface convergence at MBS will present best chance of LIFR fog,
with FNT/PTK also having a chance, but likely IFR regardless. The
southern tafs are a tougher call, as there is a chance of MVFR low
clouds developing.

For DTW/D21 Convection... No thunderstorms expected through
tomorrow.

THRESHOLD PROBABILITIES...

* High for ceiling aob 5000 feet this afternoon, then low.

TAF Dashboard (AWC)

379 FTUS43 KDTX 212028 AAA TAFDTW TAF AMD KDTW 212028Z 2120/2224 04010KT P6SM BKN040 FM220100 07005KT P6SM SKC FM220800 VRB03KT 3SM BR SCT015 FM221400 04005KT P6SM FEW040 SCT250=