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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 8:03AM | Sunset 5:52PM | Wednesday January 27, 2021 8:58 AM EST (13:58 UTC) | Moonrise 4:35PM | Moonset 7:39AM | Illumination 99% | ![]() |
LMZ849 Pentwater To Manistee Mi- 405 Am Est Wed Jan 27 2021
.small craft advisory in effect through Thursday morning...
Early this morning..North winds 10 to 20 knots. Cloudy with a chance of snow. Waves 3 to 5 feet.
Today..North winds 15 to 25 knots. Cloudy with a chance of snow. Waves 3 to 5 feet.
Tonight..North winds 15 to 20 knots. Mostly cloudy with a chance of snow. Waves 3 to 5 feet.
Thursday..Northwest winds 15 to 20 knots. Mostly cloudy with a chance of snow. Waves 2 to 4 feet.
Thursday night..North winds 10 to 15 knots. Mostly cloudy. Waves 1 to 3 feet.
Friday..Northeast winds around 10 knots. Mostly cloudy. Waves around 1 foot.
Saturday..Southeast winds 15 to 20 knots. Mostly cloudy. Waves 1 to 2 feet.
Sunday..Northeast winds 15 to 20 knots. Cloudy. Waves 1 to 2 feet.
.small craft advisory in effect through Thursday morning...
Early this morning..North winds 10 to 20 knots. Cloudy with a chance of snow. Waves 3 to 5 feet.
Today..North winds 15 to 25 knots. Cloudy with a chance of snow. Waves 3 to 5 feet.
Tonight..North winds 15 to 20 knots. Mostly cloudy with a chance of snow. Waves 3 to 5 feet.
Thursday..Northwest winds 15 to 20 knots. Mostly cloudy with a chance of snow. Waves 2 to 4 feet.
Thursday night..North winds 10 to 15 knots. Mostly cloudy. Waves 1 to 3 feet.
Friday..Northeast winds around 10 knots. Mostly cloudy. Waves around 1 foot.
Saturday..Southeast winds 15 to 20 knots. Mostly cloudy. Waves 1 to 2 feet.
Sunday..Northeast winds 15 to 20 knots. Cloudy. Waves 1 to 2 feet.
LMZ849 Expires:202101272100;;118758
FZUS53 KGRR 270905
NSHGRR
Nearshore Marine Forecast
National Weather Service Grand Rapids MI
405 AM EST Wed Jan 27 2021
For waters within five nautical miles of shore on Lake Michigan
LMZ849-272100-
7 Day Forecast for Marine Location Near Ludington, MI
Hourly EDIT Help
location: 43.96, -86.44 debug
Area Discussion for - Grand Rapids, MI
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionFXUS63 KGRR 271134 AFDGRR
Area Forecast Discussion National Weather Service Grand Rapids MI 634 AM EST Wed Jan 27 2021
LATEST UPDATE . Aviation
SYNOPSIS. Issued at 154 AM EST Wed Jan 27 2021
- Some risk for accumulating snow Sat Night - Sunday
- Isolated impacts possible into Thu along the lakeshore
- Cold temps into Saturday . especially at the start of each day
DISCUSSION. (Today through next Tuesday) Issued at 154 AM EST Wed Jan 27 2021
- Some risk for accumulating snow Sat Night - Sunday
Overall there is still a fair amount of spread in the models with the GFS showing the earliest and most northerly look to the snow shield. The GFS would warrant accumulations perhaps all the way up to Mt Pleasant. The High Res Euro and Ukmet keep the risk for accumulating snow to the southwest of Grand Rapids with only light amounts shown. No real trends noted between the models with this run However. this system . centered off the CA coast is rather energetic based on satellite displays and ltg fields. Considering much off the system has not been sampled by the raobs . much can change with the timing and track. Close monitoring will be needed going forward. We will keep the forecast fairly close to the previous forecast with high chance pops mainly to the southwest of Grand Rapids at this time.
- Isolated impacts possible into Thu along the lakeshore
The north to northwest flow of arctic air over Lake MI will generate bands of snow showers that could clip the points over then next few periods. These snow showers/flurries will come ashore Thursday as the flow backs to the west. Overall the moisture is shown to be shallow . under 5k ft which should act to limit any impacts. The DGZ is shown to be at the cloud tops. For now we will keep the POP relatively low at this time.
- Cold temps into Saturday . especially at the start of each day
Cold air advection will persist into Thursday keeping temperatures well below normal With the flow from the north . inland areas may see some temporary clearing which may allow for temps to tank at night. The fresh snowfall will aid in the radiational cooling. An example of this temperatures dip is going on down in Van Buren and Allegan Counties at this time. KLWA is 9 degrees as of 300 am. Divergent low level flow cleared the skies out and some stations dropped into the 9 to 11 degree range. So each night we will conservatively feature single digits inland for temps. Factoring in some wind and there could be wind chills dropping to near zero impacting anyone outside at that time of the day.
AVIATION. (For the 12Z TAFS through 12Z Thursday morning) Issued at 612 AM EST Wed Jan 27 2021
MVFR Cigs continue to dominate the skies this morning with some clearing at LAN. Expect these cigs to continue through most of the day due to the cold surface temperatures and the lack of mixing. Skies will finally clear out this evening and should gradually clear by 06Z, with the majority of the area turning VFR by that time. Winds will be northerly around 10 kts although some gusts to 20 kts are still possible this evening. Snow showers are possible along the lakeshore though they will remain west enough not to effect any airport. However Vsbys in and around these snow showers along the lakeshore could reduce vsbys. These showers will be possible between 18Z to 06Z Thursday.
MARINE. Issued at 154 AM EST Wed Jan 27 2021
The gusty northerly flow over the nearshore waters will continue into Thursday leading to hazardous conditions for small craft. High pressure moves in by Friday diminishing the winds. Conditions could turn hazardous again for Sunday as another storm tracks just south of MI leading to gusty offshore winds.
GRR WATCHES/WARNINGS/ADVISORIES. MI . None. LM . Small Craft Advisory until 7 AM EST Thursday for LMZ844>849.
SYNOPSIS . MJS DISCUSSION . MJS AVIATION . Ceru MARINE . MJS
Weather Reporting Stations
EDIT (on/off)  Help NOTE: Click on distance to see the station location on a mapWind History for Ludington, MI
(wind in knots) EDIT (on/off)  Help9 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 | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | |
Last 24hr | NE G10 | NE G13 | NE G14 | NE G11 | NE G11 | N G14 | N G11 | N G13 | NE G15 | NE G11 | NE G9 | N G8 | N G10 | NE G11 | NE G9 | NE G9 | NE | NE | NE | E | E | NE | NE | NE |
1 day ago | NE | E | NE G6 | NE G7 | NE G8 | NE G7 | E G8 | NE G11 | NE | NE G11 | NE G12 | NE G10 | NE G13 | NE G12 | NE G10 | NE G10 | NE G12 | NE G10 | NE G9 | NE G14 | NE G17 | NE G12 | NE G14 | NE G11 |
2 days ago | SE G10 | SE G9 | SE G17 | SE G10 | SE G9 | SE G9 | S G8 | S G11 | SW G9 | N G4 | NE | N | NE | NE | E | NE | NE | N G4 | N | NE | NE | E | E | E |
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 | 2 mi | 64 min | N 0 | 10.00 mi | Overcast | 23°F | 17°F | 77% | 1025.1 hPa |
Manistee County - Blacker Airport, MI | 24 mi | 63 min | NNE 8 | 9.00 mi | Light Snow | 23°F | 15°F | 72% | 1026.4 hPa |
Link to 5 minute data for KLDM
Wind History from LDM (wind in knots)
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 | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | |
Last 24hr | N | N | NE | N G15 | N G16 | N G15 | N | N G17 | N G17 | N | N | NE | NE | N | NE | NE | NE | E | Calm | Calm | Calm | Calm | Calm | Calm |
1 day ago | Calm | Calm | E | NE | NE | N | E | NE | NE | NE | NE | NE | NE | NE | NE G15 | NE | NE | NE G14 | NE G15 | NE | NE G14 | N | ||
2 days ago | SE | SE | SE G14 | S | SE | SE | S | S | S | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | NE | NE | Calm |
Tide / Current Tables for
EDIT Weekend mode (on/off) (on/off)  HelpTide / Current Tables for
EDIT (on/off)  HelpWeather Map
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GEOS Local Image of EDIT
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.
Link to Loop

Other links: GEOS-West Contential US Full GOES-East
Ground Weather Radar Station
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