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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 9:40 PM EST (02:40 UTC) | Moonrise 4:37PM | Moonset 7:35AM | Illumination 100% | ![]() |
LMZ847 Grand Haven To Whitehall Mi- 405 Pm Est Wed Jan 27 2021
.small craft advisory in effect through Thursday morning...
Through early evening..North winds 15 to 20 knots. Mostly cloudy. Waves 2 to 4 feet.
Tonight..North winds 10 to 20 knots. Partly cloudy in the evening then becoming mostly cloudy. A chance of snow showers. Waves 2 to 4 feet.
Thursday..Northwest winds 10 to 15 knots. Mostly cloudy with a chance of snow showers. Waves 2 to 4 feet.
Thursday night..North winds 5 to 15 knots veering northeast toward daybreak. Partly cloudy. Waves 2 to 3 feet.
Friday..Southeast winds 5 to 10 knots. Mostly Sunny. Waves 1 foot or less.
Friday night..Southeast winds 10 to 20 knots. Mostly cloudy. Waves around 1 foot.
Saturday..East winds 15 to 25 knots. Mostly cloudy. Waves 1 to 3 feet.
Sunday..East winds 20 to 25 knots. Cloudy with a chance of snow showers. Waves 1 to 3 feet.
Monday..North winds 10 to 15 knots. Mostly cloudy. Waves 1 to 3 feet.
.small craft advisory in effect through Thursday morning...
Through early evening..North winds 15 to 20 knots. Mostly cloudy. Waves 2 to 4 feet.
Tonight..North winds 10 to 20 knots. Partly cloudy in the evening then becoming mostly cloudy. A chance of snow showers. Waves 2 to 4 feet.
Thursday..Northwest winds 10 to 15 knots. Mostly cloudy with a chance of snow showers. Waves 2 to 4 feet.
Thursday night..North winds 5 to 15 knots veering northeast toward daybreak. Partly cloudy. Waves 2 to 3 feet.
Friday..Southeast winds 5 to 10 knots. Mostly Sunny. Waves 1 foot or less.
Friday night..Southeast winds 10 to 20 knots. Mostly cloudy. Waves around 1 foot.
Saturday..East winds 15 to 25 knots. Mostly cloudy. Waves 1 to 3 feet.
Sunday..East winds 20 to 25 knots. Cloudy with a chance of snow showers. Waves 1 to 3 feet.
Monday..North winds 10 to 15 knots. Mostly cloudy. Waves 1 to 3 feet.
LMZ847 Expires:202101280900;;591534
FZUS53 KGRR 272105
NSHGRR
Nearshore Marine Forecast
National Weather Service Grand Rapids MI
405 PM EST Wed Jan 27 2021
For waters within five nautical miles of shore on Lake Michigan
LMZ847-280900-
7 Day Forecast for Marine Location Near Muskegon, MI
Hourly EDIT Help
location: 43.23, -86.26 debug
Area Discussion for - Grand Rapids, MI
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionFXUS63 KGRR 272352 AFDGRR
Area Forecast Discussion National Weather Service Grand Rapids MI 652 PM EST Wed Jan 27 2021
LATEST UPDATE . Aviation
SYNOPSIS. Issued at 330 PM EST Wed Jan 27 2021
- Light Lake Effect Snow Tonight and Thursday
- Ridge Brings Quiet Weather to End the Work Week
- Watching System Over The Weekend for Snow
DISCUSSION. (This evening through next Wednesday) Issued at 330 PM EST Wed Jan 27 2021
-- Light Lake Effect Snow Tonight and Thursday --
Instability is surely in place tonight and Thursday with delta t's on the order of 20C tonight. That is only one portion of the equation however. Moisture, especially in regard to depth is a negative factor with depths noted at less that 5,000ft. The best chance for lake effect on our area will come overnight in a northerly flow and a connection off of Lake Superior. A land breeze will add some convergence to the situation and boost the band a bit, which largely be off shore. There is not much upper support in terms of shortwaves to add moisture or lift. So, scattered snow shower and flurries for the most part. The exception will be at times overnight when a band tries to affect the Points and potentially down towards South Haven. Could envision some light accumulations especially up near the points if the band remains over Mason and Oceana Counties for a time. A localized inch or two now out of question, but most locales inch or less.
-- Ridge Brings Quiet Weather to End the Work Week --
A ridge of high pressure will bring a quiet end to the work week with dry weather expected from Thursday night through Saturday. A cold couple of night for sure tonight and again Thursday night under solid radiational cooling conditions. Single digits will show up again both nights.
-- Watching System Over The Weekend for Snow --
The main focus of the forecast is on the system for the weekend. Trends in the models have not change appreciably from yesterday to today. There may be a slight jog to the north back towards are area though. We will have to see if this trend continues. The wave in question is actually off the coast of British Columbia at this time. The wave dives southward into the trough and is then kicked inland across California on Friday, emerging into The Plains on Saturday. The upper wave is losing some punch as it comes our direction, becoming an open wave with time. At the surface, the low is filling with time as it tracks eastward off to our south. Still, the system makes a close enough approach to the area that we have the threat of a swath of snow across our forecast area. At this time, the southern half of the CWA would stand the best chance, basically along and south of I-96. Too early to make any statements with much certainty however. The operational ECWMF would give a couple inches to the far southwest corner of the CWA, with the GFS painting more of a swath of advisory type snows for the southern half (Saturday night into Sunday).
Ensemble means show the low tracking across Central or Southern portions of Indiana, again losing strength as it does. The GFS shows a fairly high, somewhat shallow DGZ Saturday night and Sunday at AZO. So, it doesn't look like a prolific snow to me even if the GFS pans out. It bears watching for sure as it may reach advisory levels.
AVIATION. (For the 00Z TAFS through 00Z Thursday evening) Issued at 652 PM EST Wed Jan 27 2021
Stratocumulus cloud deck with bases at VFR levels of 3500-4500 ft may develop some breaks in it tonight but then fill back in on Thursday. There could be a few flurries and MVFR cigs, particularly on Thursday afternoon as the northerly winds back to the northwest, but not much expected in terms of vsby reductions. MKG however could see a few brief periods of MVFR or lower vsbys if/when any better lake effect bands impact the terminal there.
MARINE. Issued at 330 PM EST Wed Jan 27 2021
No change made to the going headline. Small Craft Advisory remains in effect through 700am Thursday morning. Northerly winds around 20 knots will keep waves up a bit this evening and tonight at 3 to 5 feet, especially up near the Points and down towards South Haven. A period of lower winds and waves are expected from Thursday into Friday as a ridge of high pressure moves through the region.
Winds on Saturday will ramp up to Small Craft Advisory levels, although winds will be off shore. Highest waves will be found out over the open water.
GRR WATCHES/WARNINGS/ADVISORIES. MI . None. LM . Small Craft Advisory until 7 AM EST Thursday for LMZ844>849.
SYNOPSIS . Duke DISCUSSION . Duke AVIATION . Meade MARINE . Duke
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 |
MKGM4 - Muskegon, MI | 4 mi | 30 min | NE 8 G 9.9 | 22°F | 1032.9 hPa | 13°F | ||
HLNM4 - 9087031 - Holland, MI | 32 mi | 52 min | N 9.9 G 13 | 33°F | 1029 hPa | |||
LDTM4 - 9087023 - Ludington, MI | 50 mi | 52 min | N 1.9 G 2.9 |
Wind History for Holland, MI
(wind in knots) EDIT (on/off)  Help9 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 | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | |
Last 24hr | N G12 | N G12 | N | NE | NE | N | NE G8 | N | NE | NE | NE | E | E | E | E G10 | NE | NE G9 | N | N | N G21 | N G16 | N G15 | N | N G14 |
1 day ago | NE G24 | NE G18 | NE G26 | NE G25 | NE G24 | NE G21 | NE G17 | NE G15 | NE G18 | N G16 | NE G21 | NE G16 | NE G16 | NE G17 | NE G18 | N G14 | N G17 | N G17 | N G16 | N | N | N G16 | NE | N |
2 days ago | SE | SE G7 | SE | SE G6 | SE | E | E | NE | NE | NE | NE G5 | NE | NE G6 | NE | NE | E | NE G11 | NE G9 | NE G15 | NE G18 | NE | NE G18 | NE G14 | NE G15 |
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 |
Muskegon, Muskegon County Airport, MI | 3 mi | 45 min | N 7 | 9.00 mi | Light Snow | 23°F | 11°F | 60% | 1031.7 hPa |
Fremont Municipal Airport, MI | 20 mi | 63 min | N 8 | 10.00 mi | Overcast | 21°F | 11°F | 64% | 1029.5 hPa |
Link to 5 minute data for KMKG
Wind History from MKG (wind in knots)
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 | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | |
Last 24hr | N | N | Calm | Calm | Calm | N | N | N | NE | E | Calm | SW | Calm | Calm | N | N | NW | N | N | N | N | N | N | N |
1 day ago | NE G21 | E | NE G23 | NE | NE G21 | NE | NE G19 | NE | NE | NE G21 | N G20 | NE | N G18 | N | N | N G21 | N | N G21 | N | N | N | N | N | |
2 days ago | SE | SE | E | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | NE | NE | NE | N | N | N | NE | NE G18 | NE | NE | NE | NE | E |
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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