Marine Forecasts

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7 Day Forecast for Marine Location Near Ludington, MI

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Area Discussion for - Grand Rapids, MI

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Fxus63 kgrr 171150 afdgrr area forecast discussion national weather service grand rapids mi 650 am est Thu jan 17 2019 latest update... aviation Synopsis Issued at 319 am est Thu jan 17 2019 - flurries and very light snow showers this afternoon and evening - light snow mainly near to south of i-96 Friday night and Saturday - coldest airmass of the season moves in Sunday Monday Discussion (today through next Wednesday) issued at 319 am est Thu jan 17 2019 a weak southern stream low pressure system will bring very light snow showers and flurries this afternoon and evening. Very little (less than a half an inch) to no snow accumulations are forecast with this system. A very brief period of light freezing drizzle is possible later this evening as deeper moisture peels away but some low level moisture lingers. A high pressure ridge will bring a brief period of tranquil wx late tonight through Friday aftn. However light snow will develop mainly near to south of i-96 Friday evening in an area of isentropic ascent and increasing mid level frontogenetical forcing. Snow accumulations of an inch or two are expected by 12z sat with relatively higher end amounts most probable near to south of i-94. Light snow will continue Saturday as the main sfc low moves ene across the tn lower oh valley regions. Additional snow accumulations of up to two inches are expected near i-94 with lighter amounts of an inch or less along the i-96 corridor. This will bring total snow for this event into the 1 to 4 inch range. Brisk northerly flow CAA will usher in the coldest airmass of the season Sunday when high temps will only reach the upper single digits to middle teens. Low temps Sunday night will fall to below zero over portions of our fcst area with the fresh snow cover and clearing skies in subsidence under the high pressure ridge. Max temps Monday will only reach the teens. Larger medium range guidance discrepancies arise toward the middle portion of next week which leads to considerable uncertainty. An overall medium range guidance consensus suggests potential for a synoptic snow event Tuesday into Wednesday. Temps will moderate a bit by then but will still average below normal for this time of year. Bitterly cold arctic air is poised to advect into our region

for the last week of january. Interestingly the 00z operational ecmwf is also now showing this potential for the final days of january. This notion is more in line with the fv3-gfs which has been consistent in showing bitterly cold air for our area for the last week of january. Aviation (for the 12z tafs through 12z Friday morning) issued at 650 am est Thu jan 17 2019 ceilings will lower to MVFR this morning if they have not already. Expecting ifr ceilings from grr east and south this afternoon through much of tonight, greatest confidence at azo btl jxn. Tempo ifr visibility possible at any airport due to light snow but will be difficult to pin down when. Winds fairly light, shifting from east to south to west during the next 12 to 18 hours. Marine Issued at 319 am est Thu jan 17 2019 wave heights will be minimal today due to offshore southeast to southerly winds of only around 5-15 kts. Wave heights will ramp up somewhat late tonight into Friday to around 2 to 5 feet as winds veer to the northwest and increase to around 10-20 kts. Hydrology Issued at 327 pm est Wed jan 16 2019 water levels are dropping and are near-normal for this time of year on most of our rivers and streams. Continue to gradually fall on most of our rivers and streams. New ice formation has largely stalled as temperatures have warmed up to near freezing, but we are primed for significant ice growth as soon as cold temperatures return. It still looks like that will occur this weekend as the coldest air of the season (so far) plows into lower michigan. In addition, any snow that happens to fall on Saturday while the temperatures are falling will increase the growth of new ice even more. By the end of next week, many of our streams will probably have a solid cover of ice. Between now and then will be our most vulnerable window for ice jams to form. As we head into the weekend and early next week, locations prone to ice jam flooding should pay extra attention to the rivers and prepare now for possible fast changes in water levels. Grr watches warnings advisories Mi... None. Lm... None. Synopsis... Laurens discussion... Laurens aviation... Cas hydrology... Anh marine... Laurens

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
LDTM4 - 9087023 - Ludington, MI	1 mi	36 min	E 4.1 G 8	22°F				15°F
BSBM4 - Big Sable Point, MI	8 mi	44 min	ESE 7 G 9.9	21°F			1020.3 hPa

Wind History for Ludington, MI

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NE5 G9

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SW8 G13

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W7 G11

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Ludington, Mason County Airport, MI	2 mi	29 min	ESE 4	10.00 mi	Overcast	22°F	16°F	77%	1019.6 hPa
Manistee County - Blacker Airport, MI	24 mi	28 min	ESE 4	10.00 mi	Overcast	21°F	15°F	78%	1022 hPa

Wind History from LDM (wind in knots)

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SW10 G15

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Tide / Current Tables for

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Tide / Current Tables for

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Weather Map and Satellite Images

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GOES Local Image of GreatLakes    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for Grand Rapids, MI (12,3,4,5)

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Ground Weather Radar Station Grand Rapids/Muskegon, MI

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Disclaimer: The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.