Grosse Pointe Farms, MI Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Grosse Pointe Farms, MI

June 19, 2024 12:21 AM EDT (04:21 UTC) Change Location
Sunrise 5:52 AM   Sunset 9:13 PM
Moonrise 6:20 PM   Moonset 2:38 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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LCZ460 Lake St Clair- 932 Pm Edt Tue Jun 18 2024

Rest of tonight - South winds 5 to 10 knots with gusts to 15 knots early. Partly cloudy. Waves 2 feet or less.

Wednesday - South winds 5 to 10 knots. Mostly cloudy. Waves 2 feet or less.

Wednesday night - Southwest winds 5 to 10 knots veering to the north after midnight. Partly cloudy. A chance of showers and Thunderstorms in the evening. Waves 2 feet or less.

Thursday - North winds 5 to 10 knots early in the morning becoming light and variable - .then becoming northeast 5 to 10 knots early in the afternoon. Mostly Sunny. A chance of showers and Thunderstorms in the afternoon. Waves 2 feet or less.

Thursday night - Northeast winds 5 to 10 knots. Mostly clear. Waves 2 feet or less.

Friday - Light and variable winds becoming southeast 5 to 10 knots in the evening. Mostly Sunny in the morning - .then a chance of light showers in the afternoon. Partly cloudy in the evening. Waves 2 feet or less.

Saturday - South winds 10 to 15 knots. Partly cloudy. Waves 2 feet or less.

Sunday - West winds 15 to 20 knots. Partly cloudy. A chance of showers and Thunderstorms. Waves 1 to 3 feet.

No data

7 Day Forecast for Marine Location Near Grosse Pointe Farms, MI
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Area Discussion for - Detroit/Pontiac, MI
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Area Forecast Discussion National Weather Service Detroit/Pontiac MI 721 PM EDT Tue Jun 18 2024


- Hot and humid conditions will persist across most of the area through the week.

- Chances of thunderstorms will continue each day of the week. Some of these storms may be strong to severe with locally heavy downpours.


There remains a few boundaries associated with the lake breeze and outflow from earlier convection across Ohio that may still result in a few isolated showers and storms for KDET/KDTW/KYIP this evening.
Will monitor those trends over the next few hours and provide amendments if convection does materialize. Otherwise, the risk for thunderstorms will continue to wane into the overnight hours and VFR conditions are expected. Winds will remain generally from the southwest, with the exception of more southerly winds as lake breeze boundaries move through KDET/KDTW this evening and again Wednesday afternoon/evening. Thunderstorms remain possible yet again on Wednesday, especially during the afternoon and evening hours. There is quite a bit of mid/high clouds to our south, which is expected to lift northeast across southeast Michigan tomorrow. That is something that we will need to keep an eye on, as mid/high clouds put a lid on much of our convection today.

For DTW/D21 Convection...There are a few pockets of thundestorms well north and south of KDTW. Lingering boundaries as noted above may still result in the development of thundestorms near KDTW until about 00Z tonight. Potential for wet microbursts lingers this evening, should stronger storms develop over/near D21 airspace.
Additional convection remains possible for Wednesday, but confidence is low regarding coverage. Any storms on Wednesday will be slow moving and will still pose a threat for wet microbursts.


* Low for thunderstorms until 01Z.

* Low for ceiling at or below 5000 ft, conditional with thunderstorms.

Issued at 353 PM EDT Tue Jun 18 2024


Opaque mid cloud altostratus and haze associated with the shortwave lifting into western Lower Michigan has been very effective in dampening insolation through the noon hour. Have observed very little boundary layer cumulus growth into the early afternoon hours across Southeast Michigan. The real forecast challenge now heading forward is what sort of low-midlevel convective inhibition will hold on as forecast soundings were advertising the greatest projected instability would exist at midday just prior to the deepest boundary layer mixing. The most recent ACARS soundings do show a pronounced stable layer residing in the 850-775mb layer that does match with the forecast soundings (3.0 to 6.0 kft agl). Signal of the 18.12Z CAMS was decidedly leaner with convective coverage over all of the forecast area, although the MPAS runs and a couple of the WRF ARW runs continue to show some development after 20Z. Small scale of the modeled updrafts in the CAMS suggest a more muted UVV response and for this reason the potential for strong to severe storms (if they were to develop) is probably less than yesterday. Will leave PoPs in the high chance category this afternoon given the convergence that is expected to develop. Strong wind gusts from water loading/wet downbursts are the main threat with heavy rainfall from any training another possibility.

A ribbon of sheared absolute vorticity is expected to lift northward along the periphery of the upper level ridging into the Great Lakes region during the daytime Wednesday. Model data shows the strongest shortwave center then impinging directly into the area during the late afternoon. More transparency to the cloud and modest cooling in the 850-700mb layer is expected to result in less low-mid CIN over the area. Surface based CAPEs of over 1500 J/kg with 0-6 km bulk shear increasing to 30 knots will support a strong to severe thunderstorm threat. The current Day 2 for SPC has Southeast Michigan in a General Thunderstorm Outlook.

A dynamic behavior and evolution of the upper level ridge is expected this week with a pseudo rex block taking shape over the eastern United States tonight and Wednesday before the centroid retrogrades back to the Tennessee Valley by Saturday. Latest indications are that ridging will hold just north of Southeast Michigan with H5 heights of 592-596 dam. Projected 850mb temperatures during this timeframe are expected to range between 18- 19C with high temperatures rising into the lower 90s. The uncertainty for the week regarding heat indices is on two items. 1.
Favorable setup for inertial instability-and backdoor cold front flipping flow northerly in the Thumb for Thursday. Current high temperatures along the Lake Huron shoreline are in the 70s. 2.
Guidance and forecasted surface dewpoints running higher than what has been verifying. The current gridded forecast has values reaching/exceeding 70 degrees each of the days. The cumulative effects of consecutive days of heat and humidity will cause stress on vulnerable individuals and populations. The heat headlines will remain in effect.


Southwest winds will maintain the hot and humid conditions into tomorrow. A high degree of surface stability with the cooler waters should keep wind speeds under 25 knots. The exception will be in and near and strong thunderstorms which develop. Timing and location will be highly uncertain, but the typical peak heating of the day into early evening hours will be favored. A cold front is now progged to move south Wednesday night, even faster than indicated yesterday. This will allow for northerly winds over Lake Huron on Thursday and Friday as seasonably strong high pressure tracks through Ontario. Even so, airmass remains warm, which should help limit wind speeds to around 15 knots. Thus, any wave build up with the longer fetch is expected to remain below 4 feet. A stronger cold front looks to be on track for the second half of the weekend however, and wind speeds then could reach or exceed 25 knots with waves building to around 4 feet. Small craft advisories may be needed.

MI...Heat Advisory until 8 PM EDT Friday for MIZ047-053-060-068-075-082- 083.

Heat Advisory until 8 PM EDT Thursday for MIZ048-049-054-055-062- 063.

Excessive Heat Warning until 8 PM EDT Friday for MIZ061-069-070-076.

Lake Huron...None.
Lake St Clair...None.
Michigan waters of Lake Erie...None.

Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
CLSM4 - St. Clair Shores, MI 5 mi81 minS 8.9G14 78°F 30.13
AGCM4 25 mi51 min 78°F 65°F30.09
THLO1 - Toledo Light No. 2 OH 43 mi81 minSE 11G11 77°F 30.1173°F
MBRM4 - 9014090 - Mouth of the Black River, MI 47 mi51 min 77°F 30.09
PBWM4 48 mi51 min 75°F 30.08
FTGM4 - 9014098 - Fort Gratiot, MI 49 mi51 minS 9.9G13 77°F 30.0868°F

Wind History for Fort Gratiot, MI
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KDET COLEMAN A YOUNG MUNI,MI 6 sm28 minS 0510 smClear81°F72°F74%30.13
CYQG WINDSOR,CN 9 sm21 minS 079 smOvercast79°F73°F84%30.14
KMTC SELFRIDGE ANGB,MI 15 sm26 minS 0810 smClear75°F70°F83%30.10
KVLL OAKLAND/TROY,MI 18 sm26 minS 0510 smClear81°F70°F70%30.15
Link to 1 hour of 5 minute data for KDET
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Wind History graph: DET
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Tide / Current for
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Detroit, MI,

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