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Marine Weather and Tides
Version 3.4 |
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
| Sunrise 6:52AM | Sunset 8:45PM | Sunday August 18, 2019 5:56 PM EDT (21:56 UTC) | Moonrise 9:34PM | Moonset 8:41AM | Illumination 89% |  |
LMZ847 Grand Haven To Whitehall Mi- 405 Pm Edt Sun Aug 18 2019
.small craft advisory in effect until 8 pm edt this evening...
Through early evening..South winds to 30 knots. Partly Sunny. Waves 3 to 5 feet.
Tonight..Southwest winds 10 to 15 knots veering north toward daybreak. Partly cloudy. Waves 2 to 4 feet.
Monday..Northwest winds 10 to 15 knots. Sunny. Waves 1 to 3 feet.
Monday night..North winds 5 to 10 knots veering east toward daybreak. Mostly clear. Waves 1 foot or less.
Tuesday..Southeast winds 5 to 10 knots veering southwest 10 to 15 knots. Sunny. Waves 1 foot or less.
Tuesday night..Southwest winds 5 to 10 knots veering northwest 10 to 15 knots toward daybreak. Partly cloudy. Waves 1 foot or less.
Wednesday..North winds 10 to 20 knots. Mostly Sunny. Waves 1 to 3 feet.
Thursday..North winds 5 to 10 knots backing northwest 10 to 20 knots. Sunny. Waves 1 to 2 feet.
Friday..East winds around 10 knots veering southeast, then backing northwest late in the day. Sunny. Waves 1 foot or less.
.small craft advisory in effect until 8 pm edt this evening...
Through early evening..South winds to 30 knots. Partly Sunny. Waves 3 to 5 feet.
Tonight..Southwest winds 10 to 15 knots veering north toward daybreak. Partly cloudy. Waves 2 to 4 feet.
Monday..Northwest winds 10 to 15 knots. Sunny. Waves 1 to 3 feet.
Monday night..North winds 5 to 10 knots veering east toward daybreak. Mostly clear. Waves 1 foot or less.
Tuesday..Southeast winds 5 to 10 knots veering southwest 10 to 15 knots. Sunny. Waves 1 foot or less.
Tuesday night..Southwest winds 5 to 10 knots veering northwest 10 to 15 knots toward daybreak. Partly cloudy. Waves 1 foot or less.
Wednesday..North winds 10 to 20 knots. Mostly Sunny. Waves 1 to 3 feet.
Thursday..North winds 5 to 10 knots backing northwest 10 to 20 knots. Sunny. Waves 1 to 2 feet.
Friday..East winds around 10 knots veering southeast, then backing northwest late in the day. Sunny. Waves 1 foot or less.
LMZ847 Expires:201908190800;;845712
FZUS53 KGRR 182006
NSHGRR
Nearshore Marine Forecast
National Weather Service Grand Rapids MI
405 PM EDT Sun Aug 18 2019
For waters within five nautical miles of shore on Lake Michigan
LMZ847-190800-
7 Day Forecast for Marine Location Near Muskegon, MI
Hourly EDIT Helplocation: 43.23, -86.26 debug
Area Discussion for - Grand Rapids, MI
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kgrr 181904 afdgrr area forecast discussion national weather service grand rapids mi 304 pm edt Sun aug 18 2019 latest update... synopsis discussion marine Synopsis Issued at 304 pm edt Sun aug 18 2019 - a few more storms are possible this afternoon and again late Tuesday. - cooler Wednesday night through Saturday. Discussion (this evening through next Sunday) issued at 304 pm edt Sun aug 18 2019 surface analysis shows a cold front just crossing lake michigan. Some clearing skies behind the earlier convection are allowing the atmosphere to recover somewhat, but we're still a couple hours away from any redevelopment... If it comes at all. However, convective redevelpment remains a possibility from 4p-8p ahead of the cold front. Convective inhibition progs suggest that sbsin will fall to 0j kg by 21z across the cwa. After the front passes through, mainly dry weather is expected until late Tuesday ahead of another cold front. We'll maintain pops in the grids for storm possibilities the air behind the Tuesday front will be very comfortable as dewpoints fall into the lower 50s. Highs in the 70s and lows in the mid 50s are expected toward the end of the week before warmer weather returns for the weekend. Aviation (for the 18z tafs through 18z Monday afternoon) issued at 150 pm edt Sun aug 18 2019 area of rain continues to press off to the east across southwest lower michigan at 18z. This rain is associated with what is left over from an area of showers storms that initially moved into |
southwest lower michigan this morning. We are expecting the rain to continue to diminish push east over the next hour or two. The next question is whether or not we see another round of showers and storms on the cold front that presses in from the west this evening. The instability has diminished considerably due to the rain and clouds. We are not expecting a big redevelopment of the instability, which should keep the shower and storm chances on the low side. Models continue to hint at showers and storms this evening towards kbtl and kjxn, but they may not be taking into account the full extent of how the atmosphere has been stabilized today. So, for that reasoning have only included vcsh wording in the tafs for now for this evening. Next order of business is the threat of low clouds and fog tonight. Feel the chance for low clouds is high, with all sites likely seeing MVFR ceilings developing. Cannot rule out some ifr ceilings along i-94 as well. The front stalls over the area tonight and the low clouds will likely do the same into the day on Monday. Some fog is expected tonight as well, but at this point not expecting it to become dense. Marine Issued at 304 pm edt Sun aug 18 2019 frequent wind gusts to 25 knots through late afternoon will be hazardous to small craft and waves hazardous to beach goers. Small craft and beach hazards advisories will remain in effect through 8 pm. Grr watches warnings advisories Mi... Beach hazards statement until 8 pm edt this evening for miz037- 043-050-056. Lm... Small craft advisory until 8 pm edt this evening for lmz846>849. Synopsis... 04 discussion... 04 aviation... Duke marine... 04 |
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 |
| MKGM4 - Muskegon, MI | 4 mi | 36 min | W 12 G 13 | 72°F | 1009.6 hPa | 68°F | ||
| 45161 | 6 mi | 56 min | 12 G 16 | 73°F | 71°F | 4 ft | 1010.2 hPa (+3.3) | |
| 45029 | 23 mi | 26 min | SW 5.8 G 7.8 | 72°F | 69°F | 3 ft | 1010 hPa | 67°F |
| HLNM4 - 9087031 - Holland, MI | 32 mi | 62 min | WSW 9.9 G 12 | 73°F | 1010.1 hPa | 71°F | ||
| LDTM4 - 9087023 - Ludington, MI | 50 mi | 62 min | WSW 4.1 G 9.9 | 72°F | 65°F |
Wind History for Holland, MI
(wind in knots) EDIT (on/off) Help| 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 | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | |
| Last 24hr | NW | NW | N | N | N | E | SE | E | E | E | S | SE | S | SE G9 | SE | SE G9 | SE G13 | SE G14 | S G35 | S G9 | SE G13 | SE G21 | S G22 | W |
| 1 day ago | S | S | SE G8 | SE G9 | SE G10 | SE G15 | S | S G15 | S | S | S | S | S | S | S | S | S | S | SW | SW | S | S | S | NW |
| 2 days ago | NW | N | N | NW | NW | N | E | E G8 | E | E | E G9 | SW | NE | SE | SE | SE | E | SE | S | S G8 | S | S | S | SE |
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 | 2 hrs | SW 15 G 27 | 10.00 mi | Overcast | 78°F | 66°F | 69% | 1009.4 hPa |
| Fremont Municipal Airport, MI | 20 mi | 2.3 hrs | WSW 9 G 16 | 10.00 mi | Fair | 78°F | 65°F | 67% | 1009.1 hPa |
Link to 5 minute data for KMKG
Wind History from MKG (wind in knots)
| 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 | SW | W | Calm | Calm | E | Calm | SE | Calm | E | Calm | E | Calm | E | SE | S | SE | S | S | S | SE | SE G20 | S G25 | SW G27 | SW G18 |
| 1 day ago | S | S | S | S | SE | S | SW | W | W | SW | SW | W | Calm | W | W | W | SW | W | SW | SW | SW | NW | ||
| 2 days ago | NE | W | W | W | Calm | SE | E | SE | SE | SE | Calm | SE | SE | Calm | E | SE | SE | S | SW | SW | S G20 | S G19 | S G18 | S |
Tide / Current Tables for
EDIT Weekend mode (on/off) (on/off) HelpTide / Current Tables for
EDIT (on/off) HelpWeather Map and Satellite Images
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GOES Local Image of 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 (17,4,5,8)
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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. |