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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 7:06AM | Sunset 6:44PM | Monday March 8, 2021 11:03 AM EST (16:03 UTC) | Moonrise 4:45AM | Moonset 1:36PM | Illumination 25% | ![]() |
LMZ848 Whitehall To Pentwater Mi- 405 Am Est Mon Mar 8 2021
.small craft advisory in effect until 4 pm est this afternoon...
Early this morning..South winds 15 to 25 knots. Mostly cloudy. Waves 5 to 7 feet.
Today..Southwest winds 10 to 20 knots. Mostly Sunny. Waves 5 to 7 feet.
Tonight..South winds 5 to 10 knots backing southeast 10 to 15 knots toward daybreak. Mostly cloudy. Patchy fog. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight.
Tuesday..Southeast winds 15 to 20 knots. Mostly Sunny. Patchy dense fog. Waves 2 to 3 feet.
Tuesday night..South winds 20 to 25 knots. Partly cloudy with a slight chance of rain showers. Waves 4 to 6 feet building to 5 to 7 feet toward daybreak.
Wednesday..South winds around 25 knots. Rain showers likely. Waves 6 to 8 feet.
Thursday..West winds 15 to 20 knots veering northwest 10 to 15 knots late in the day. Mostly cloudy with a chance of rain showers. Waves 4 to 6 feet.
Friday..Northwest winds 10 to 15 knots. Mostly Sunny. Waves 1 to 3 feet. Wave heights are for ice free areas.
.small craft advisory in effect until 4 pm est this afternoon...
Early this morning..South winds 15 to 25 knots. Mostly cloudy. Waves 5 to 7 feet.
Today..Southwest winds 10 to 20 knots. Mostly Sunny. Waves 5 to 7 feet.
Tonight..South winds 5 to 10 knots backing southeast 10 to 15 knots toward daybreak. Mostly cloudy. Patchy fog. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight.
Tuesday..Southeast winds 15 to 20 knots. Mostly Sunny. Patchy dense fog. Waves 2 to 3 feet.
Tuesday night..South winds 20 to 25 knots. Partly cloudy with a slight chance of rain showers. Waves 4 to 6 feet building to 5 to 7 feet toward daybreak.
Wednesday..South winds around 25 knots. Rain showers likely. Waves 6 to 8 feet.
Thursday..West winds 15 to 20 knots veering northwest 10 to 15 knots late in the day. Mostly cloudy with a chance of rain showers. Waves 4 to 6 feet.
Friday..Northwest winds 10 to 15 knots. Mostly Sunny. Waves 1 to 3 feet. Wave heights are for ice free areas.
LMZ848 Expires:202103082100;;648059
FZUS53 KGRR 080905
NSHGRR
Nearshore Marine Forecast
National Weather Service Grand Rapids MI
405 AM EST Mon Mar 8 2021
For waters within five nautical miles of shore on Lake Michigan
LMZ848-082100-
7 Day Forecast for Marine Location Near Hart, MI
Hourly EDIT Help
location: 43.66, -86.53 debug
Area Discussion for - Grand Rapids, MI
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionFXUS63 KGRR 081152 AFDGRR
Area Forecast Discussion National Weather Service Grand Rapids MI 652 AM EST Mon Mar 8 2021
LATEST UPDATE . Aviation
SYNOPSIS. Issued at 329 AM EST Mon Mar 8 2021
- Dry and warmer today and Tuesday
- Potential for fog/freezing fog tonight
- Wet Wednesday night and Thursday
DISCUSSION. (Today through next Sunday) Issued at 329 AM EST Mon Mar 8 2021
-- Dry and warmer today and Tuesday --
Latest IR loop shows some mid cloud moving across Lake Michigan in association with a short wave cross the Great Lakes. It'll take several hours for these clouds to move through, so we're likely looking at a partly sunny day. Southwest flow will increase today and Tuesday bringing warmer air to much of the CWA. The exception will be the lakeshore where flow off of the cold lake will hold temperatures in the 40s. Elsewhere, the temperature will climb into the lower to mid 50s north of I-96 and upper 50s to near 60 south of I-96 today.
-- Potential for fog/freezing fog tonight --
The southwest flow will bring an increase in low level moisture. The upper ridge moving over the state tonight will result in light winds. The combination of those two will likely result in and increase in clouds and fog tonight. The ECMWF seems to have a pretty good handle and is close to CONSShort and points toward dewpoints remaining in the lower to mid 30s tonight and temperatures fall close to the dewpoints. We're likely to see fog develop and perhaps freezing fog, especially north of I-96. If this occurs, some roads could become slick Tuesday morning.
HREF indicates the clouds will decrease Tuesday afternoon and that will help temperatures to climb into the lower 60s south of I-96 and upper 50s north of there. Of course, the lake shore will be colder.
-- Wet Wednesday night and Thursday --
Low pressure moving northeast along a cold front will push rain through Wisconsin and the northwest CWA Wednesday. The rest of the CWA will see rain Wednesday night and Thursday. The latest trend of the models lingers the frontal boundary over southern Lower Thursday which means we may see heavier rain along/south of I-94. The GFS and ECMWF both show around a half inch of rain in that area Thursday. High pressure will build into the CWA Thursday night and Friday and we should dry out then.
AVIATION. (For the 12Z TAFS through 12Z Tuesday morning) Issued at 652 AM EST Mon Mar 8 2021
Gusty southwest winds to 30 kts expected today as VFR continues with cloud bases at or above 8000 ft. Winds quickly diminishing this evening, then some fog and/or low stratus potentially developing after midnight tonight.
Confidence is currently low as to the extent of any fog/freezing fog late tonight, but potential does exist for some LIFR vsbys to be present at 12Z Tuesday. For now went with 2 mile IFR vsbys late tonight in the TAFS but this will need monitored.
MARINE. Issued at 329 AM EST Mon Mar 8 2021
We extended the Small Craft Advisory through this afternoon due to winds taking a bit longer to diminish. We may need another SCA Wednesday into Thursday ahead of the next system.
GRR WATCHES/WARNINGS/ADVISORIES. MI . None. LM . Small Craft Advisory until 4 PM EST this afternoon for LMZ844>849.
SYNOPSIS . 04 DISCUSSION . 04 AVIATION . Meade MARINE . 04
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 |
LDTM4 - 9087023 - Ludington, MI | 20 mi | 63 min | SSW 16 G 19 | 42°F | 33°F | |||
MKGM4 - Muskegon, MI | 32 mi | 43 min | SSW 17 G 18 | 37°F | 1025 hPa | 33°F | ||
MEEM4 - Manistee Harbor, MI | 42 mi | 83 min | S 8 G 14 | 44°F | 1022.4 hPa |
Wind History for Ludington, MI
(wind in knots) EDIT (on/off)  Help11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 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 | |
Last 24hr | SE | SW | SW | SW | SW G8 | SW G11 | S | S G12 | S | SE G7 | SE G10 | SE G9 | SE G9 | SE G11 | S G17 | S G27 | S G21 | S G23 | S G24 | S G22 | S G20 | S G21 | S G20 | S |
1 day ago | N G13 | N G13 | N G11 | W G12 | N G13 | N G14 | N G9 | NE G9 | NE | -- | N | E | NE | E | E | E | NE | NE | NE | E | E | NE | E | SE G8 |
2 days ago | N G13 | NW G12 | N G10 | N G16 | N G15 | N G12 | N G11 | NW G10 | NW | NW | N | N G5 | N G8 | N G10 | NE | NE | E | E | N | N G5 | N G4 | N G8 | N G10 | N 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 |
Ludington, Mason County Airport, MI | 22 mi | 68 min | SW 11 G 20 | 10.00 mi | Fair | 47°F | 34°F | 62% | 1022 hPa |
Link to 5 minute data for KLDM
Wind History from LDM (wind in knots)
12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 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 | |
Last 24hr | S | W | S | S | W | SW | SW G9 | S | S | S | SE | SE | SE | SE | S | S G20 | SW G27 | SW G24 | SW G23 | SW G24 | SW G21 | SW G19 | SW G18 | SW |
1 day ago | N | N G17 | N G14 | NW G16 | N G17 | N G16 | N | NE | Calm | Calm | Calm | Calm | Calm | Calm | Calm | NE | Calm | Calm | NE | NE | Calm | Calm | SE | SE |
2 days ago | N | N G16 | NW G16 | N | NW G20 | N G16 | N | N | Calm | Calm | Calm | N | N | N | Calm | Calm | Calm | Calm | Calm | N | Calm | N | N G16 | N G16 |
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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