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Marine Weather and Tides
Version 3.4 |
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17. 1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support. |
Sunrise 6:54AM | Sunset 6:30PM | Sunday March 7, 2021 10:48 PM EST (03:48 UTC) | Moonrise 3:27AM | Moonset 12:23PM | Illumination 30% | ![]() |
LCZ460 Lake St Clair- 351 Pm Est Sun Mar 7 2021
Tonight..South winds 5 to 10 knots. Partly cloudy. Waves 2 feet or less.
Monday..Southwest winds 10 to 15 knots. Partly Sunny. Waves 2 feet or less.
Monday night..West winds 10 to 15 knots becoming north 5 to 10 knots in the late evening and overnight. Partly cloudy. Waves 2 feet or less.
Tuesday..Northeast winds 5 to 10 knots veering to the southeast in the late morning and afternoon. Mostly cloudy. Waves 2 feet or less.
Tuesday night..South winds 5 to 10 knots increasing to 10 to 15 knots in the late evening and overnight. Mostly clear. Waves 2 feet or less.
Wednesday..South winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon and evening. Mostly cloudy. A chance of rain in the afternoon and evening. Waves 1 to 3 feet.
Thursday..Southwest winds 15 to 20 knots. Mostly cloudy with rain likely. Waves 1 to 3 feet.
Friday..Northwest winds 10 to 15 knots. Partly cloudy. Rain likely. Waves 2 feet or less.
Tonight..South winds 5 to 10 knots. Partly cloudy. Waves 2 feet or less.
Monday..Southwest winds 10 to 15 knots. Partly Sunny. Waves 2 feet or less.
Monday night..West winds 10 to 15 knots becoming north 5 to 10 knots in the late evening and overnight. Partly cloudy. Waves 2 feet or less.
Tuesday..Northeast winds 5 to 10 knots veering to the southeast in the late morning and afternoon. Mostly cloudy. Waves 2 feet or less.
Tuesday night..South winds 5 to 10 knots increasing to 10 to 15 knots in the late evening and overnight. Mostly clear. Waves 2 feet or less.
Wednesday..South winds 10 to 15 knots increasing to 15 to 20 knots in the afternoon and evening. Mostly cloudy. A chance of rain in the afternoon and evening. Waves 1 to 3 feet.
Thursday..Southwest winds 15 to 20 knots. Mostly cloudy with rain likely. Waves 1 to 3 feet.
Friday..Northwest winds 10 to 15 knots. Partly cloudy. Rain likely. Waves 2 feet or less.
LCZ460 Expires:202103080915;;623984
FZUS63 KDTX 072051
GLFSC
Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
351 PM EST Sun Mar 7 2021
Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. Occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.SYNOPSIS...High pressure, 30.50 inches, is centered over the
region but will drift south and east into tonight. A low pressure
system will track east across Hudson Bay tonight into Monday
while a southward extending trough, 30.10 inches, passes through
the northern Great Lakes. High pressure will build back into the
area for Tuesday.
LCZ460-080915-
7 Day Forecast for Marine Location Near Village of Grosse Pointe Shores, MI
Hourly EDIT Help
location: 42.46, -82.67 debug
Area Discussion for - Detroit/Pontiac, MI
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionFXUS63 KDTX 072307 AFDDTX
Area Forecast Discussion National Weather Service Detroit/Pontiac MI 607 PM EST Sun Mar 7 2021
AVIATION.
Surface ridge and very dry airmass in place will continue to support clear skies (below 20 kft) and light winds into tonight. Strong warm advection will ensue late tonight and bring in mid/upper clouds as southwest winds develop. Southwest winds will then increase on Monday morning with gusts up around 20 knots by early afternoon. While cigs will lower, they should bottom out only in the 5-10kft layer. DTW THRESHOLD PROBABILITIES.
* None.
PREV DISCUSSION. Issued at 353 PM EST Sun Mar 7 2021
DISCUSSION .
Center of surface anticyclone has become positioned this afternoon in a lake aggregate fashion over the northern Lake Huron basin. Obvious signal showing up in surface observations with a lake breeze dynamic and onshore flow for just about all of the Lakeshore. For interior sections of Lower Michigan, nil surface flow has put the brakes on deep mixing. Have tweaked the temperatures grids for the remainder of the afternoon lower a degree or two.
Deep anticyclonic gyre aloft will push eastward through portions of Indiana and the Ohio River Valley tonight with return southwesterly flow becoming firmly established for Monday. Surface warm front/warm sector is shown to push eastward across all of the area between 9- 12Z with a quasi-stationary front developing along the northern flank of the warm sector across northern Lower Peninsula. NAM solution is really hung up on this frontal boundary suggesting it will even push southward late afternoon down into the Saginaw Bay region. Suspect some questionable radiative forcing within the models is leading to some overzealous frontal behavior. The HRRR remains much warmer across the Tri Cities and does not support the same frontal behavior through much of the afternoon. There is some uncertainty with regards to cloud cover over the northern cwa which may impact insolation. High confidence that cold air advection washes southward by the early evening hours. Generally sided with the non-nam solution for high temperatures, but do feel a non- diurnal curve is likely across far northern cwa. Interesting surface trough feature predicted at 18Z should help in mechanical mixing and pushing mixing depths upwards of 6.5 to 7.0 kft agl layer. Basic mixing technique suggests 0.5C at 800mb will be good for temperatures well into the mid 60s. Settle on highs ranging from the middle 50s north (early) to the middle 60s across Metro Detroit.
Frontal boundary will settle southward becoming stalling out in vicinity of far southern Lower Michigan for Tuesday. Despite upper riding the main warm sector will become more increasingly organized with height falls across the Plains. Models very persistent on easterly trajectory to surface winds which will lead to an onshore component. Went more tempered with highs for Tuesday with cooler readings near the Lakes/Rivers. Highs are expected to range in the upper 50s to the lower 60s.
All out warm sector with deep southwesterly flow for Wednesday. Lead shortwave energy is expected to stream across the area which is expected to lead to extensive cloud cover. A secondary warm front is expected to lift into the area during the afternoon leading to rain shower chances. Main surface low is progged to deepen and lift northward through the western Great Lakes Wednesday night. Latest forecast data suggests main time window for precipitation across Southeast Michigan will be during the day on Thursday. Trailing cold front from low pressure passage is expected slow down over the state in time for next upper level jet exit region and deep frontogenesis response. Notable aspect of the Thursday forecast is data suggesting surface dewpoints reaching the middle 50s.
MARINE .
Quiet weather heading into tonight as high pressure is centered over the Great Lakes. The high will drift eastward through the evening pulling the ridge axis through the area by tonight. This will cause the calm winds to become southerly overnight. A trough axis extending south out of a low that will across Hudson Bay, will sweep across the northern Great Lakes tonight. The gradient will tighten between this trough and current ridge causing winds to ramp up tonight into Monday. Gusts will be limited by warm air advection over the waters so expecting gust up to 25 knots. High pressure fills back in quickly behind the weak trough for Tuesday with continued southerly flow.
DTX WATCHES/WARNINGS/ADVISORIES. MI . NONE. Lake Huron . NONE. Lake St Clair . NONE. Michigan waters of Lake Erie . NONE.
AVIATION . DG DISCUSSION . CB MARINE . DRK
You can obtain your latest National Weather Service forecasts online at www.weather.gov/detroit.
Weather Reporting Stations
EDIT (on/off)  Help NOTE: Click on distance to see the station location on a mapStations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
CLSM4 - St. Clair Shores, MI | 11 mi | 48 min | S 2.9 G 7 | 29°F | 1030.8 hPa (+0.3) | |||
AGCM4 | 13 mi | 48 min | 28°F | 34°F | 1029.9 hPa (+0.0) | |||
MBRM4 - 9014090 - Mouth of the Black River, MI | 38 mi | 48 min | 27°F | 1029.2 hPa (-0.0) |
Wind History for Fort Gratiot, MI
(wind in knots) EDIT (on/off)  Help10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | |
Last 24hr | E | E | SE | S | NW | N | N | NW | NW G9 | NW | NW G11 | N | NW G9 | N | N | NE | E | NE | NE | NE | E | E | SE | SE |
1 day ago | NW G15 | NW G12 | N G21 | N G13 | NW G18 | NW G17 | NW G14 | NW G14 | NW G17 | NW G14 | NW G16 | N G15 | NW G18 | NW G16 | N G17 | N G13 | NW G13 | N G13 | NE | N G10 | E | SE | S | S |
2 days ago | NW G10 | NW | NW | NW | NW G9 | NW G10 | NW | NW G12 | NW G13 | NW G13 | NW G15 | NW G14 | NW G20 | NW G20 | NW G20 | NW G17 | NW G21 | NW G20 | NW G22 | NW G22 | NW G21 | NW G18 | NW G16 | NW G13 |
Airport Reports
EDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
Selfridge Air National Guard Base, MI | 14 mi | 52 min | S 4 | 12.00 mi | Mostly Cloudy | 24°F | 23°F | 95% | 1031.1 hPa |
Coleman A Young Municipal Airport, MI | 19 mi | 55 min | S 3 | 10.00 mi | Fair | 29°F | 21°F | 72% | 1031.3 hPa |
Link to 5 minute data for KMTC
Wind History from MTC (wind in knots)
11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | |
Last 24hr | NW | N | N | N | Calm | N | NW | NW | Calm | NW | N | SE | SE | SE | E | E | SE | SE | SE | S | S | |||
1 day ago | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | N | NW G18 | NW | NW | NW G15 | NW | N | N | Calm | SE | S | Calm | |
2 days ago | Calm | Calm | W | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW G22 | NW G17 | NW G18 | W G16 | W | NW | NW G19 | NW | W | NW G19 | NW | NW |
Tide / Current Tables for
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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