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Marine Weather and Tides
Version 3.4 |
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome. 10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name. |
| Sunrise 7:44AM | Sunset 7:59PM | Thursday March 21, 2019 6:04 PM EDT (22:04 UTC) | Moonrise 7:56PM | Moonset 7:30AM | Illumination 99% |  |
LMZ849 Pentwater To Manistee Mi- 412 Pm Est Fri Jan 25 2019
.heavy freezing spray warning in effect through Saturday morning...
.small craft advisory in effect through Saturday afternoon...
Tonight..Northwest winds 10 to 20 knots. Mostly cloudy with a chance of snow showers. Heavy freezing spray. Waves 2 to 5 feet.
Saturday..Southwest winds 10 to 20 knots. Mostly cloudy. Heavy freezing spray. Waves 2 to 4 feet.
Saturday night..Northwest winds 15 to 25 knots. Mostly cloudy with a chance of snow showers. Heavy freezing spray. Waves 3 to 5 feet.
Sunday..Northwest winds 15 to 25 knots. Partly Sunny with a chance of snow showers. Heavy freezing spray. Waves 3 to 5 feet. This is the last nearshore marine forecast (nshgrr) issuance for the season. The nshgrr will again be issued around april 1st 2019, or as conditions warrant.
.heavy freezing spray warning in effect through Saturday morning...
.small craft advisory in effect through Saturday afternoon...
Tonight..Northwest winds 10 to 20 knots. Mostly cloudy with a chance of snow showers. Heavy freezing spray. Waves 2 to 5 feet.
Saturday..Southwest winds 10 to 20 knots. Mostly cloudy. Heavy freezing spray. Waves 2 to 4 feet.
Saturday night..Northwest winds 15 to 25 knots. Mostly cloudy with a chance of snow showers. Heavy freezing spray. Waves 3 to 5 feet.
Sunday..Northwest winds 15 to 25 knots. Partly Sunny with a chance of snow showers. Heavy freezing spray. Waves 3 to 5 feet. This is the last nearshore marine forecast (nshgrr) issuance for the season. The nshgrr will again be issued around april 1st 2019, or as conditions warrant.
LMZ849 Expires:201901260415;;919599
FZUS53 KGRR 252113 CCA
NSHGRR
Nearshore Marine Forecast...corrected
National Weather Service Grand Rapids MI
412 PM EST Fri Jan 25 2019
For waters within five nautical miles of shore on Lake Michigan
LMZ849-260415-
7 Day Forecast for Marine Location Near Ludington, MI
Hourly EDIT Helplocation: 43.96, -86.44 debug
Area Discussion for - Grand Rapids, MI
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kgrr 211914 afdgrr area forecast discussion national weather service grand rapids mi 314 pm edt Thu mar 21 2019 latest update... synopsis discussion hydro Synopsis Issued at 315 pm edt Thu mar 21 2019 - a mostly dry cold front will swing through lower michigan tonight making way for a blustery Friday. - after a splendid Saturday and early Sunday, light precipitation is possible mainly south of i-96 early Monday. - a dry and warming period is expected through the middle of next week. Discussion (this evening through next Thursday) issued at 315 pm edt Thu mar 21 2019 currently, temperatures are in the upper 30s to lower 40s with overcast skies and light north northwesterly winds. A few pockets of broken cloud cover can be seen in visible satellite imagery, and indeed a few lucky locations may see the Sun before nightfall. A cold front associated with a potent upper-level shortwave trough can be seen diving south over south-central ontario and northern lake superior, with clearing skies over the upper peninsula of michigan and central wisconsin. As the aforementioned shortwave trough dives south over lower michigan overnight early Friday morning, a few light snow showers are possible but the forecast low-level thermal and moisture profiles suggest the snow showers will be light with highly scattered coverage (e.G. Not everyone will see snowflakes tonight). Temperatures will be slower to fall than previously thought, likely preventing a "flash freeze" tonight. Rather, it appears temperatures will wait to fall below freezing until Friday evening at most locations. With stout northwesterly winds gusting to 25-30 mph during the afternoon hours, Friday will certainly feel "raw" with wind chills in the lower 20s falling to the lower teens Friday night (single digits in traditional cold spots). Saturday and the first half of Sunday still look splendid with abundant sunshine and temperatures warming into the mid 40s and |
lower 50s, respectively. Cloud cover will increase Sunday evening as yet another upper-level trough approaches from the north in tandem with an approaching (though weak) surface wave from the southwest. Forecast ensemble and deterministic model guidance continues to demonstrate inconsistency in precipitation potential Sunday night and into Monday morning with the wave, but current indications are that should it indeed precipitate, totals would be light and mainly south of i-96. Monday afternoon through mid-week will feature dry conditions and a warming trend with highs climbing toward the 50 mark Wednesday and especially Thursday. Forecast ensemble model guidance then continues to suggest the pattern will become stormy for the end of the week with anywhere from a wintry mix, thunderstorms, to locally heavy rainfall included within the ensemble solution space... Rest assured we have plenty of time between now and then to sort out the details. Aviation (for the 18z tafs through 18z Friday afternoon) issued at 106 pm edt Thu mar 21 2019 ceilings are expected to continue rising gradually as the afternoon progresses with a brief period ofVFR CIGS possible before sunset. MVFR CIGS will return after dark as a cold front sweeps south across the state. No visibility restrictions are currently in the forecast. Northwesterly winds will slightly back westerly this afternoon, before returning northwesterly after the aforementioned front sweeps through. Wind gusts may exceed 20 knots toward the end of the TAF period. Hydrology Issued at 315 pm edt Thu mar 21 2019 no more flood products are in effect as river levels have fallen below flood stage and runoff water levels have subsided across newaygo county. However, numerous roadways remain closed particularly across newaygo and northern kent counties due to flood water damage. No significant precipitation is expected over the next four to seven days. Grr watches warnings advisories None. Synopsis... Borchardt discussion... Borchardt aviation... Borchardt hydrology... Borchardt |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| LDTM4 - 9087023 - Ludington, MI | 1 mi | 53 min | SW 6 G 8 | 35°F | 32°F | |||
| BSBM4 - Big Sable Point, MI | 8 mi | 85 min | SSW 6 G 8 | 35°F | 1013.5 hPa |
Wind History for Ludington, MI
(wind in knots) EDIT (on/off) Help| 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 | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | |
| Last 24hr | SE G9 | SE | SE | E | E | E G8 | E | E | E | NE | N | N | N | N | NW | N G5 | N G7 | N G10 | NW | NW G7 | NW | W | SW | SW |
| 1 day ago | S | S G16 | S G12 | S G10 | S G12 | S G14 | S G16 | S G18 | S G17 | S G15 | S G16 | S G17 | S G14 | S G17 | S G16 | S G21 | S G16 | S G17 | S G21 | S G19 | S G18 | S G15 | S G10 | SE G12 |
| 2 days ago | SW | SW | SW | S | S G11 | S G12 | SW | S | S G8 | SW | S G9 | S | S | S G9 | S | S | S | SW G12 | SW G11 | SW | SW | SW G10 | S G12 | SW G13 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Ludington, Mason County Airport, MI | 2 mi | 69 min | WSW 7 | 7.00 mi | Overcast | 38°F | 34°F | 88% | 1012.5 hPa |
| Manistee County - Blacker Airport, MI | 24 mi | 69 min | WSW 8 | 10.00 mi | Overcast | 38°F | 32°F | 79% | 1014.1 hPa |
Wind History from LDM (wind in knots)
| 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 | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | |
| Last 24hr | SE | SE | SE | SE | SE | Calm | E | E | E | Calm | Calm | Calm | Calm | N | Calm | N | N | N | N | NW | NW | NW | W | W |
| 1 day ago | S | SW | S | S | S | S | SW G20 | SW | S | SW G18 | SW | SW G18 | SW G17 | S G20 | S G17 | S | SW G20 | SW G21 | SW G21 | S G18 | S G16 | S | S | SE |
| 2 days ago | SW | SW | Calm | SW | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | SW | SW | SW | SW | SW | SW | SW | SW |
Tide / Current Tables for
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EDIT (on/off) HelpWeather 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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Grand Rapids, MI (18,4,5,8)
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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. |