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

June 18, 2024 12:53 AM EDT (04:53 UTC) Change Location
Sunrise 5:52 AM   Sunset 9:13 PM
Moonrise 5:11 PM   Moonset 2:11 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- 332 Pm Edt Mon Jun 17 2024

Tonight - South-southeast winds 10 to 15 knots diminishing to 5 to 10 knots in the late evening and overnight. Mostly clear. Waves 2 feet or less.

Tuesday - South winds 5 to 10 knots increasing to 10 to 15 knots in the afternoon. Partly Sunny. A chance of. Waves 2 feet or less.

Tuesday night - South winds 10 to 15 knots diminishing to 5 to 10 knots after midnight. Partly cloudy. Waves 2 feet or less.

Wednesday - South winds 5 to 10 knots. Partly Sunny. Waves 2 feet or less.

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

Thursday - Light and variable winds becoming southwest 5 to 10 knots in the afternoon - .then backing to the northeast in the evening. Partly Sunny becoming mostly Sunny in the afternoon becoming partly cloudy. Waves 2 feet or less.

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

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

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7 Day Forecast for Marine Location Near Grosse Pointe Woods, MI
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Area Discussion for - Detroit/Pontiac, MI
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Area Forecast Discussion National Weather Service Detroit/Pontiac MI 1157 PM EDT Mon Jun 17 2024


- A prolonged period of heat and humidity will continue through the week. Excessive heat warnings and heat advisories are in effect.

- There will be periodic chances for thunderstorms throughout the week. Locally heavy rainfall will be primary driver of impacts.


Thunderstorms finished their evening run leading up to midnight leaving just a stray shower or rumble of thunder possible during the late night. There is little else of concern outside of convective trends under VFR clear to scattered sky condition until a brief period of fog or haze becomes possible with wet ground now combined with the already humid air mass. A couple of hours of MVFR restriction is likely around sunrise even with a 5 to 10 kt wind.
The afternoon then brings more of the same hot, humid, and unstable conditions along with another pattern of showers and thunderstorms having even greater organization. Given larger scale mid level support moving in from the MS/TN valleys, mid afternoon storm initiation is likely with similar timing across the terminal corridor which then moves eastward toward Tuesday evening.

For DTW/D21 Convection... A stray shower or rumble of thunder remain possible late tonight as warm and humid air is now rooted across Lower MI. A morning pause in convection is expected followed by another round of storms in the afternoon, likely with greater coverage across the bulk of D21.


* Moderate for thunderstorms mid to late afternoon into Tuesday evening.

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

Issued at 337 PM EDT Mon Jun 17 2024


Amplifying upper-level ridge episode over eastern North America and correlated building heat dome is well underway. Surface dewpoints are surging into the lower 70s with temperatures climbing to around 90 - pushing heat index values into the upper 90s. Furthermore, low temperatures will only settle back to around 70 with higher readings in the urban settings (mid-70s). These conditions will be the norm for the balance of the work week and will take its toll on exposed populations - hence the long duration heat advisory and excessive heat warning.

Subsidence in the wake of the morning mesoscale convective vortex and associated thunderstorms is starting to lose influence across southern Lower Michigan. There is still evidence of a ribbon of anti- cyclonic enhanced flow aloft over Southeast Michigan in the GOES-WV imagery. Consequently, expect the suppression of deeper cumulus development to continue over the next few hours. The scattered activity along the periphery over the Saginaw Valley will continue to bubble northeast across the thumb. While there is plenty of instability to tap (MLCAPE > 2.5-kJ/kg) with adequate depth (>2-km), there is very little flow and/or shear to support scaled growth.
Therefore, heavy rainfall is the primary outcome with some wet microburst potential with hydrometeor loading in deeper cells.

The quality of instability on Tuesday will not be as good, but a north-south oriented buoyancy gradient in the 1-2-km layer will linger over Southeast Michigan. This in combination with better jet level forcing rolling north into the region will help initiate scattered thunderstorms once again. Precipitable water values will increase to well over 1.75-inches - supporting intense downpours once again. If the buoyancy gradient maintains integrity along the mean flow vector, convective training and resultant flash flood potential will be more likely. Still some variance in guidance offerings, but a small cluster of heavy rainfall outcomes is very evident.

The mid-levels do not get dramatically warm with this heat dome; therefore, afternoon convection is possible each day through this heat spell. Medium range guidance is now suggesting that the current heat will grab another day on Saturday with the timing of the next shortwave and cold front remaining questionable.


Southwest winds will continue to advect hot and humid air into the Central Great Lakes through the mid week period. High degree of surface stability with the cooler waters should keep wind speeds under 25 knots through the rest of the work week. 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. Indications are the surface frontal boundary will be sinking south Thursday and Friday as seasonably strong high pressure tracks through Ontario.
This will allow for light northeast/northerly flow (~15 knots) over Lake Huron. Airmass will remain warm, thus any wave build up with the longer fetch remains below 4 feet.


A moist and unstable airmass will be in place across the region through Tuesday. Scattered thunderstorms are expected this afternoon and again Tuesday afternoon. The most intense thunderstorms have the potential to produce rainfall amounts in excess of 2 inches over a short period of time, resulting in urban and low lying area flooding. Uncertainty in specifics for both timing and potential for flooding precludes issuance of a flood watch, at this time.


MI...Heat Advisory until 8 PM EDT Friday for MIZ047>049-053>055-060-062- 063-068-075-082-083.

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 3 mi53 minSW 2.9G5.1 79°F 30.03
AGCM4 24 mi53 min 75°F 64°F30.00
MBRM4 - 9014090 - Mouth of the Black River, MI 45 mi53 min 79°F 29.98
THLO1 - Toledo Light No. 2 OH 45 mi53 minE 4.1G5.1 78°F 30.0369°F
FTGM4 - 9014098 - Fort Gratiot, MI 47 mi53 minSSW 8G11 79°F 29.9867°F
PBWM4 47 mi53 min 74°F 29.98

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 sm60 minSSE 0410 smClear81°F64°F58%30.01
CYQG WINDSOR,CN 11 sm53 minSW 109 smOvercast79°F68°F70%30.02
KMTC SELFRIDGE ANGB,MI 13 sm2 hrsS 1110 smMostly Cloudy81°F70°F70%29.98
KVLL OAKLAND/TROY,MI 17 sm18 minSSW 0410 smClear82°F63°F51%30.04
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Wind History graph: DET
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Detroit, MI,

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