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Beverly Hills, Michigan Weather Forecast Discussion

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FXUS63 KDTX 290944
AFDDTX

Area Forecast Discussion National Weather Service Detroit/Pontiac MI 544 AM EDT Mon Sep 29 2025

.KEY MESSAGES...

- No significant weather nor precipitation expected through the next seven days.

- Above normal temperatures retreat to more seasonable readings mid- week.

&&

.AVIATION...

High pressure centered over the region today will provide deep layer subsidence keeping skies clear. Any chance of early morning fog is quickly dwindling for DTW/YIP as dewpoint depressions have been holding around 3-5 degrees through the early morning. Winds will be light and variable under the center of the high as is passes before becoming northeasterly tonight as the center drifts over southern Ontario.

For DTW/D21 Convection...Convection will not occur through the TAF period.

DTW THRESHOLD PROBABILITIES...

* None.

&&

.PREV DISCUSSION... Issued at 337 AM EDT Mon Sep 29 2025

DISCUSSION...

A longwave mid-upper ridge will translate over the Midwest and Great Lakes over the course of this week bringing stable conditions and no precipitation to speak of through the work week. For today, the surface high pressure slides across the central and eastern Great Lakes while washing out towards the NE CONUS resulting in light and variable winds locally. Temperatures at 850 mb to 14-16C bring daytime high temperatures this afternoon in the upper 70s to low 80s under sunny skies. Continued lack of clouds through tonight will allow overnight lows to drop into the upper 40s to mid 50s for most of SE MI.

Lower level flow becomes better organized out of the north to northeast on the south end of a strong high pressure emerging out of central Canada. This draws a slightly cooler airmass into Michigan and will mainly result in daytime highs on Tuesday dropping to around 80 degrees for most of southeast Michigan with the exception of shoreline areas that will be in the low-mid 70s.

Mid to late week will see the upper ridge axis pivot across the central and eastern Great Lakes while the aforementioned surface high drifts into eastern Canada and the northeast CONUS. The lower level flow out of the east to northeast will lead to advection of slightly cooler thermal profiles. This will bring daily highs to start the month of October down towards more normal values around 70 degrees for inland areas for Wednesday and Thursday. The lakeshore areas of the Thumb can expect temperatures in the 60s. Another noticeable difference mid to late week will be a boost in high clouds.

Warm advection will ensue Friday into the weekend with the passing of the ridge axis sending 850 mb temperatures back into the mid teens C. Daytime highs respond accordingly and return to the low- mid 80s. The longwave ridge begins to flatten during this upcoming weekend while a Pacific wave crosses the Rockies and into the central CONUS. A surface high pressure and ridge entrenched over Appalachia and the mid Atlantic should help direct any precipitation/deeper moisture associated with this low to the north. Thus, dry weather would prevail during the weekend as well.

MARINE...

High pressure drifts into the eastern Great Lakes today while a second high builds into Ontario. Light winds remain variable through tonight before organizing out of the northeast by Tuesday morning as the Ontario high expands. The onshore flow and tighter gradient elevate wind gusts toward 25 knots and waves toward 5 feet, which may require Small Craft Advisories for Tuesday.

&&

.DTX WATCHES/WARNINGS/ADVISORIES... MI...None. Lake Huron...None. Lake St Clair...None. Michigan waters of Lake Erie...None. &&

$$

AVIATION.....DRK DISCUSSION...AA MARINE.......MV

You can obtain your latest National Weather Service forecasts online at www.weather.gov/detroit.

NWS DTX Office Area Forecast Discussion

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