Marine Weather and Tide Forecast for Eastlake, MI

DISCUSSION
Issued at 412 PM EDT Wed Mar 11 2026

/Today thru Thursday/....
Currently surface observations depict a mix of precipitation types around the area as a wave of light/embedded moderate precipitation exits this afternoon. Near or sub freezing surface temperatures are seen all the way down to M-61. Light northeast winds have been reinforcing the cooler air over northern lower today. The 12Z KAPX RAOB showed a prominent warm nose aloft, which is resulting in the dominate precip type of freezing rain. Times of sleet and light snow is also being seen around northern MI, especially over NW lower as the aforementioned wave of precip moves out. Intial reports (encompassing the icing last night and into this morning's secondary wave of precipitation) yield a couple hundredths for Grand Traverse Bay and south and west, as well as areas adjacent to Saginaw Bay.
Otherwise locations saw between a tenth and a quarter of an inch of line ice accumulations, with the highest amounts up to 0.4" of line ice around Alpena, Montmorency, and Otsego counties.

A cold front boundary seen over lake MI will track through northern MI this afternoon, as the main precip mass is exiting. A brief transition to sleet will be seen as cooler temperatures aloft move in, then mostly snow will be seen by this evening with winds turning northwest.

Most locations will see generally light snow this evening, with some locations in NW lower seeing the light snow linger into the overnight hours. Drier air and weakening forcing over time will lead to lower snow amounts overall. A total of 1 to 3 inches of snow over the coastal and higher terrain areas of norther lower and most of eastern upper by early Thursday morning. Snow will transition into weak lake effect snow showers after midnight for the typical snow belt areas of NW lower. 850mb temps of -10 to -13C will be present, and could result in a brief band or two of more moderate lake effect snow showers. However additional snow from this will remain very localized, and with the drier air in place should only result in an additional 1 to 2 inches. So, for localized snow belt locations up to a total of 2 to 5 inches through Thursday morning. Northwest winds will strengthen with gusts up to 25 to 35 mph at times tonight into Thursday morning.

Colder air will settle in, with high temperatures generally remaining near or below freezing Thursday. A break in precipitation will be seen Thursday midday and afternoon as the lingering lake effect eases up and winds turn southwest.

/Thursday Night through Tuesday/...
PATTERN SYNOPSIS/FORECAST:

Ridging across the western/SW US
and across the SE US
with troughing over the central US with a 140+kt upper jet in the flow.
Northern stream troughing trying to catch the lingering southern stream energy over the central Plains. -20C air over eastern Canada to our north...and +20C air across the southeastern US to our south, with baroclinic zone in between...stretching from a low near the southern end of Georgian Bay down to northeast TX...looping back through the Desert SW. Subsequent convective activity across the southern US into the OH Valley where warm, moist return flow clashes with incoming cold air spilling into the central Plains. Some lingering precipitation here in the Great Lakes with deformation on the backside of the low...with things generally trying to transition to snow attm. Clipper system hangs ominously across western Canada attm.

Lingering activity to slowly exit this evening...with ridging trying to build in going into Thursday...ahead of incoming clipper system set to punch us in the face Thursday night into Friday. Tightly wound system likely to bring several inches of snowfall to the area, particularly the EUP, along and north of the warm front Thursday night into Friday morning...with strong gusty winds to only complicate things further. This should slowly fade as it exits stage right Friday night...with some high pressure trying to retake the area briefly on Saturday
However
an even more ominous system will be developing to our west across the central Plains Saturday...likely to track into the Great Lakes/OH Valley through the remainder of the weekend...bringing potential for significant QPF/snow (depending on the track of the low and where the rain/snow line ends up) and gusty winds to hang on into the start of the work week. Winter is not done with us yet.

FORECAST DETAILS...

Winds and Snow Thursday night into Friday...seems like a good setup for a punchy lil clipper. Negative tilt to the incoming shortwave trough supports a more wound-up surface low and thus, stronger winds...with some guidance suggesting the pressure gradient could support sustained winds in excess of 25kts over land Thursday night into Friday with a 40-50kt low-level jet. Think we could struggle to tap some of these stronger winds aloft, at least initially with the warm advection...but thermal profiles aren't overly stable in the low-levels (unlike this current system), and have some suspicions it may be a little easier to mix things down...particularly with the front sweeping through, which could add some isallobaric fun to the party. Probabilistic guidance also supports this idea, with high confidence in sustained 15-20kts (even a 50 percent chance--moderate confidence--in 25kts at Traverse City), particularly on the back of the low Friday midday/afternoon, with some of those stronger gusts mixing down at times. This being said, where the surface low tracks directly overhead...winds will be much lighter for a time during the day on Friday, and current signals suggest this should be in the Straits region, though it could be as far south as the M-68 corridor and even as far north as near/north of Whitefish Point. Combined with the snow...looking at potential for whiteout (nigh on blizzard)
conditions for Thursday night into Friday, with impacts to the morning commute.

Looking at some good warm advection and strengthening of the warm front ahead of this feature Thursday night to provide excellent forcing with this system. 700mb low track looks to be across the EUP, which should place the favorable snow area there...though some guidance is further north -- scraping the northern edge of the Yoop or even staying offshore over Lake Superior...which would lead to much lesser totals over land compared to current thinking. Bulk of the precip should come Thursday night into Friday, with the most intense snowfall looking like it will be in the midnight to 8am timeframe (naturally). We are expecting some decent moisture (pwats on the higher side of climo), and there are signals for some weaker stability aloft Thursday night...which suggests we'll have a decent shot at better QPF and thus, better snowfall (noting the thermal profiles with this system are all far more favorable for snow (or possibly rain or a rain/snow mix near Manistee or Au Gres if it warms enough)...no freezing rain currently expected (yay!)).
Thermal profiles are not overly supportive of enhanced snow ratios, but even 12-18 to 1 with potential QPF of 0.5-0.8 inches suggests a good shot at 8-12 inches across the Yoop in particular; think we will only pad this further Friday afternoon as we get on the back of the system. Temperatures across northern Lower could be close enough or above freezing, which could lead to wetter snow and/or lesser snow totals.

Sunday/Monday system...Setup continues to strongly favor development of a strong surface cyclone over the central US later Saturday, tracking northeastward into the OH Valley/Midwest Sunday into Monday. Think we will see some warm advection junk develop Saturday night north of the boundary...as the surface low itself spins up and the southeastern US ridge amplifies. This is also when surface winds should begin to increase. Signals for some energy to lift through the upstream trough through the weekend, leading to a more negative tilt to the system, suggest potential for this system to ramp up significantly as it crosses the OH Valley/Midwest. Multiple concerns with this system...and will start with winds. Very tight pressure gradient around deepening surface low suggests sustained winds of 20- 25kts are possible again Saturday night through Monday...with prob guidance showing moderate confidence in this idea attm. Low-level jet of around 30-40kts seems likely, and depending on how intensely the system winds up on Sunday/Monday...could be looking at an area of even stronger winds/gusts on the west/northwest quadrant of the surface low...with some low end potential of wind gusts in excess of 50mph at some point Sunday into Monday.

Strong forcing along a strong baroclinic zone, combined with potential for anomalous moisture (southwesterly flow should support a Gulf tap)...suggests we will be looking at some very productive QPF. Potential for a deep isothermal layer with this system is concerning from the standpoint of snow ratios...particularly if this falls within the DGZ, opening the door for the potential for several inches of snow, perhaps double-digit totals in some area over the course of Saturday night through Monday (with potential for a deformation band and a transition to lake effect going into Monday).
This is not a certainty for us by any means...as there is still some potential for us to be near the rain/snow line, leaving ptype concerns in the fray for this system. Certainly worth keeping an eye on, as it will likely have some kind of impact across the area -- and not necessarily even out of the question we could see some convective activity again, especially if we end up a little more on the warm side -- but still a lot of uncertainty in the details attm.

AVIATION /00Z TAFS THROUGH 00Z FRIDAY/
Issued at 1057 PM EDT Wed Mar 11 2026

Perhaps a lingering light snow shower at CIU tonight; otherwise, a dry day ahead is expected with CIGs improving to VFR area-wide. Gusty northwest winds diminish through the day on Thursday before turning south- southeasterly Thursday evening coinciding with the arrival of more snow toward the very tail end of the TAF period.

APX WATCHES/WARNINGS/ADVISORIES
MI...Winter Storm Watch from Thursday evening through Friday evening for MIZ016-017-086>088-095>098.
MARINE...None.