Marine Weather and Tide Forecast for Beechwood, MI

DISCUSSION
Issued at 233 PM EDT Sat Aug 8 2026

- Periods of showers and storms Sunday afternoon into Monday

We are seeing some slightly cooler and drier air filter over the area this afternoon in the wake of a cold frontal passage earlier today. This will remain the case through Sunday morning.

We will see shower/storm chances increase from West to East across the area Sunday afternoon. A majority of model data shows a complex of showers and storms coming in after 18z for most of the southern two thirds of the forecast area.

These will be supported by a low level jet that will be weakening as the nose of it moves toward the area. In addition, these showers/storms will be moving toward an area that is much less unstable due to the air mass replacement that took place today. MU CAPEs are forecast to be less than 1000 J/kg by late afternoon, with a stronger gradient of instability to our south. These factors will significantly limit strong to severe storms Sunday afternoon.

We expect additional showers/storms to develop to our SW Sunday evening as another low level jet ramps up with another MCV/short wave that will be riding along the instability gradient. The window between the afternoon and evening storms may be so short, that outflow boundaries, or just the tail of the storms might be acted upon by the new low level jet.

The significance of this could be that we see backbuilding off of the first line of storms, that could lead to some training of storms and a potential flooding threat. A flooding threat looks more possible up in our area over the southern counties, than a severe threat, as the instability is more elevated, and the forcing from the low level jet will be focused over our extreme southern area, and further south. Precipitable water values look to max out just south of our area too just short of 2.0". It is still very healthy over much of our area being around 1.8" or so.

This is all likely to push south of the area by Monday afternoon the low level jet moves by, and likely pushes the best moisture axis just south of the area. The models seem to be trying to pop some diurnal showers/storms Monday afternoon with much of the area seeing 1000-1500 J/kg of CAPE present.

- Mainly small daytime shower/storm chances Tuesday and Wednesday

The edge of the heat dome (and best instability) will sink a bit further south by Tuesday and Wednesday, but we do not see a major change in air masses for our area. Temperatures will still max out in the 80s mid week, and dew points will remain in the 60s. We will be a bit closer to the jet stream, with weak short waves potentially sparking a few showers/storms off mainly during the afternoon and evening hours.

- Cooler late week with returning chances of rain

The threat of rain looks to almost disappear for a couple of days for Thursday and Friday. It is at that time that we see high pressure over Ontario bring in a flow from the NE that dries us out a bit more. This will take away lingering instability from Tue/Wed, with a short wave ridge also helping to keep us dry.

The dry weather potential looks to remain short lived as we will see the upper flow become from the SW. This will try to push the edge of the heat dome toward the area again, with short waves riding along the flow that could tough off showers and storms beginning as early as Friday night into Saturday.

AVIATION /00Z TAFS THROUGH 00Z MONDAY/
Issued at 727 PM EDT Sat Aug 8 2026

Key changes: - removed TEMPO MVFR visibility group from AZO - added PROB30 TSRA/SHRA at all terminals mainly after 18Z

Chance of VFR conditions at all terminals through 06Z: 98%

Chance of VFR conditions through 12Z: 95% at MKG/GRR/LAN 90% at AZO/BTL/JXN

We are looking at a dry and well mixed airmass, which was the motivation to remove any mention of Mist/Fog this update.

MARINE
Issued at 233 PM EDT Sat Aug 8 2026

As expected, we had some elevated waves heights earlier with the peak of the wind just ahead and just behind the cool front that moved through. Waves got up to around 3+ feet, but are now on the downturn. We should see a lull in the winds and waves through tomorrow morning.

Winds and waves will once again increase Sunday afternoon ahead of the next wave of low pressure expected to approach the area. We believe these winds and waves will end up just below criteria, so no headlines for now. Showers and storms will increase Sunday afternoon, and some of these could create some short term issues.

GRR WATCHES/WARNINGS/ADVISORIES
MI...None.
MARINE...None.