Village of Grosse Pointe Shores, MI Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Village of Grosse Pointe Shores, MI

May 27, 2024 9:48 AM EDT (13:48 UTC) Change Location
Sunrise 5:57 AM   Sunset 9:00 PM
Moonrise 12:00 AM   Moonset 8:16 AM 
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NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.

Marine Forecasts
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LCZ422 742 Am Edt Sat May 25 2024

.strong Thunderstorms approaching the waters - .
the areas affected include - . Port sanilac to port huron mi - . St. Clair river - .
at 741 am edt, doppler radar indicated strong Thunderstorms, capable of producing winds up to 30 knots. These Thunderstorms were located along a line extending from 7 nm west of port huron to near st. Clair to st clair flats old channel light, moving northeast at 30 knots.
strong Thunderstorms will be near - . Algonac, st. Clair, and port huron around 745 am edt.
precautionary/preparedness actions - .
mariners can expect gusty winds up to 30 knots, locally higher waves, and lightning strikes. Boaters should seek safe harbor immediately until these storms pass.
lat - .lon 4300 8242 4296 8242 4293 8245 4289 8247 4280 8248 4276 8247 4260 8253 4263 8257 4276 8251 4300 8247 4317 8250 4317 8241 4312 8236

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7 Day Forecast for Marine Location Near Village of Grosse Pointe Shores, MI
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Area Discussion for - Detroit/Pontiac, MI
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Area Forecast Discussion National Weather Service Detroit/Pontiac MI 600 AM EDT Mon May 27 2024


- Cooler for Memorial Day with scattered morning showers and a few thunderstorms transitioning to mainly dry and breezy conditions this afternoon.

- Continued unsettle tonight into midweek with periodic showers and average to below average temperatures in the 60s to lower 70s.


A strong low pressure system sitting overhead with a pool of cold air aloft will bring deteriorated conditions across the region today. Pre-12Z area of convection should be pushing off to the NE by 12Z and most likely heavy showers. A cold front will then sweep through early this afternoon ushering in a drier airmass and gusty WSW winds to around 25 knots. Model guidance keep low MVFR CIGS through the day and into the overnight which seems reasonable looking at the current observations over southern WI which will be pulled through the local area this afternoon. A secondary cold front/trough rotating around the low will sweep southward through lower MI tonight offering the next round of showers.

For DTW/D21 Convection...Thunderstorms should be over by 12Z as lightning has already decreased significantly between 09-10Z.
Remaining showers will come to an end around 12Z with dry conditions the remainder of the day. Next round of showers comes late tonight into Tuesday morning on the next front.


* Low in thunderstorms after 12Z this morning.

* High in ceilings aob 5000 feet today and tonight.

* Low in crosswind thresholds being exceeded Monday afternoon.

Issued at 309 AM EDT Mon May 27 2024


Scattered showers and a few thundestorms will pivot through the area this morning as an upper level shortwave and associated low pressure lifts into northern lower MI and a cold front wraps west to east through the area. Mainly dry conditions are expected for much of the afternoon with gusty westerly winds as the cooler air is ushered in behind the front.

Showers will pivot back southeast into the area this evening into tonight and persist into Tuesday as this upper level system opens and shifts back through the area on its way to the eastern Great Lakes. A fast moving Pacific shortwave will merge with this MI system tonight and help re-invigorate the rain shower potential to some degree and will increase pops just a bit overnight into early Tuesday.

In the meantime, an upper low pressure system positioned east of Lake Winnipeg will pivot southeast into the area in the wake of both of these merging upper waves from Tuesday into Tuesday night. This will result in a continuation of unsettled weather with periodic scattered showers into early Wednesday. As the colder upper level core of this northern stream system works over the area, instability will increase enough to warrant a thunderstorm mention as well.
While this will be most prevalent during peak heating from Tuesday afternoon into early evening, a small chance of a thunderstorm or two will persist overnight Tuesday night into early Wednesday as the upper low/trough crosses the area.

Thereafter, upper ridging will expand into the area late this week once the upper trough that results from these various shortwaves shifts off to the east. This will bring dry conditions from late Wednesday on through at least Friday with temperatures gradually moderating from the mid 60s to lower 70s in the Tuesday-Thursday time frame back into the middle 70s by Friday.

By next weekend, the surface high pressure system that coincides with the upper level ridge will shift off to the southeast with south to southwest flow becoming established over the area. This will lead to further warming with high temperatures into the upper 70s to lower 80s. By this point in the forecast, the next stream of Pacific origin shortwaves begin to impact the Great Lakes and this brings a return of at least scattered/widely scattered shower and thunderstorm chances.


After a lull in winds early today, expect southwest to west winds to increase again this afternoon into tonight as a cold front pivots east through the area around low pressure to the north. Small Craft Advisories are in effect in anticipation for this increase in wind speed with wave heights responding as well. These gusty conditions will be slow to subside over Saginaw Bay and the tip of the Thumb where an advisory will continue into Tuesday. Cooler and unsettled conditions will prevail into midweek with periodic showers and a stray thunderstorm possible into Tuesday night as a secondary upper level disturbance sweeps southeast across the central Great Lakes in the wake of the current low pressure as it moves off to the east.


Periodic scattered showers and a few thunderstorms will impact the region into Tuesday night and early Wednesday. Additional rainfall will generally remain light to occasionally moderate. However, a few localized downpours early this morning may bring one quarter of an inch of rain to some locations. Otherwise, the highest precipitation totals of one quarter to one half an inch from tonight into Tuesday night and Wednesday morning will focus especially over the Saginaw Valley and Thumb regions with perhaps one to two tenths of an inch possible further south. Rises on local rivers associated with Sunday evening rainfall will peak and subside today into tonight with this additional early week rainfall having little to no additional impact.

Lake Huron...Small Craft Advisory from noon today to 4 AM EDT Tuesday for LHZ442- 443.

Small Craft Advisory until 4 PM EDT Tuesday for LHZ421-441.

Small Craft Advisory from noon today to 4 PM EDT Tuesday for LHZ422.

Lake St Clair...Small Craft Advisory from noon today to 4 AM EDT Tuesday for LCZ460.

Michigan waters of Lake Erie...Small Craft Advisory from noon today to 4 AM EDT Tuesday for LEZ444.

Low Water Advisory from 2 PM this afternoon to 11 PM EDT this evening for LEZ444.

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
CLSM4 - St. Clair Shores, MI 11 mi48 min SW 6G8.9 64°F 29.52
AGCM4 13 mi48 min 62°F 59°F29.46
MBRM4 - 9014090 - Mouth of the Black River, MI 38 mi48 min 61°F 29.44
FTGM4 - 9014098 - Fort Gratiot, MI 40 mi48 min NE 9.9G9.9 58°F 29.4457°F
PBWM4 40 mi48 min 59°F 29.44

Wind History for Fort Gratiot, MI
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KMTC SELFRIDGE ANGB,MI 14 sm53 minS 0310 smClear64°F63°F94%29.45
KDET COLEMAN A YOUNG MUNI,MI 18 sm55 minSSW 0510 smMostly Cloudy66°F61°F83%29.49
CYQG WINDSOR,CN 20 sm48 minSSW 079 smOvercast64°F61°F88%29.50
Link to 5 minute data for KMTC

Wind History from MTC
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Detroit, MI,

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