Monday, March25, 2019 L-36.com


Marine Weather and Tides
Muskegon, MI

Version 3.4
What's New / NOTES
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 7:37AMSunset 8:04PM Monday March 25, 2019 2:14 AM EDT (06:14 UTC) Moonrise 12:00AMMoonset 9:39AM Illumination 81% Phase: Waning Gibbous; Moon at 19 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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LMZ847 Grand Haven To Whitehall 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 3 to 5 feet.
Saturday..Southwest winds 10 to 20 knots. Mostly cloudy. A slight chance of snow showers until midday. Freezing spray through the day. Waves 2 to 3 feet.
Saturday night..West winds 15 to 25 knots. Snow showers likely in the evening, then a chance of snow showers overnight. Heavy freezing spray through the night. Waves 3 to 5 feet.
Sunday..Northwest winds 10 to 20 knots. Mostly cloudy with a slight 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.
LMZ847 Expires:201901260415;;919601 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 LMZ847-260415-


7 Day Forecast for Marine Location Near Muskegon, MI
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location: 43.23, -86.26     debug


Area Discussion for - Grand Rapids, MI
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Fxus63 kgrr 250348
afdgrr
area forecast discussion
national weather service grand rapids mi
1148 pm edt Sun mar 24 2019
latest update...

aviation

Synopsis
Issued at 330 pm edt Sun mar 24 2019
- chance for some light rain late this afternoon evening south
- period of quiet weather overnight into Wednesday
- active weather period from Thursday into next weekend

Discussion (this evening through next Sunday)
issued at 330 pm edt Sun mar 24 2019
a chance for some light rain showers remains across the far south
and southwest portions of our area, essentially along and south of i-
94. An upper level is currently spinning east along the
iowa missouri border region this afternoon. It will take more of a
southeasterly turn tonight as it becomes more under the influence of
upper troughing over the great lakes. We are not expecting much in
the way of precipitation due to the southeasterly turn of the system
and some drier air that will try to hang on across southwest lower
michigan. Cannot rule out a few hundreths however from hartford to
schoolcraft.

A quiet weather period is expected from overnight through Wednesday
as high pressure traverses the area. Monday and Tuesday will be on
the cool side of normal with highs in the lower to middle 40s. Upper
40s highs are more common this time of year. Warm air advection
begins Tuesday night as southwest flow develops on the backside of
the high.

The main weather of the 7 day forecast comes during the extended
forecast range of Wednesday night through next weekend. The preface
to the forecast in this time range is there is quite a bit of model
disparity between the deterministic models. Split flow aloft will
try to phase shortwave's aloft over the midwest, eventually
developing a low that tries to move through the southern great lakes
region during the Friday Saturday time frame. The GFS is the
weakest while the ecwmf is the strongest with the low. It's not all
that formidable of a low but there does look to be the potential for
some impact weather. The first threat is several periods of rainfall
from Wednesday night into Friday, before colder air works in and
bring snow back into the mix. Snow would be the second threat as the
low traverses the area. As this point far too early to tell how this
system will play out, but we have a potential for a swath of heavier
rain across the region on the warm side and a swath of snow on the
colder side.

Overall a pretty typical spring time pattern in the midwest with
swings in temperatures and a potentially impactful system moving
through.

Aviation (for the 06z tafs through 06z Monday night)
issued at 1146 pm edt Sun mar 24 2019
latest IR imagery shows clearing from north to south. However,
neph analysis also shows a narrow wedge of MVFR CIGS over mid
michigan extending west as far as ionia. It's possible that could
still clip grr, but the chance is small. Otherwise, skies will
become mostly clear by mid morning.

Hydrology
Issued at 330 pm edt Sun mar 24 2019
rivers across most of southwest lower michigan are back within their
banks, except for a few sites on the grand and muskegon rivers.

Standing water has also receded across the area with only a few
roads remaining closed in newaygo and kent counties. No flood
warnings or advisories remain in effect.

River levels will continue to gradually fall into mid week as mainly
dry weather is forecast into Wednesday. The snow that remains over
the muskegon basin should undergo a slow and steady melt as
temperatures warm back up.

Grr watches warnings advisories
None.

Synopsis... Duke
discussion... Duke
aviation... 04
hydrology... 63


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MKGM4 - Muskegon, MI 4 mi15 min ENE 9.9 G 13 33°F 1023.6 hPa (+1.2)27°F
HLNM4 - 9087031 - Holland, MI 32 mi33 min ENE 12 G 20 39°F 36°F1020.3 hPa30°F
LDTM4 - 9087023 - Ludington, MI 50 mi33 min NNE 7 G 8.9

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Muskegon, Muskegon County Airport, MI3 mi20 minNE 810.00 miMostly Cloudy35°F27°F72%1022.8 hPa
Fremont Municipal Airport, MI20 mi32 minNNE 510.00 miFair32°F26°F80%1022.7 hPa

Wind History from MKG (wind in knots)
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Last 24hrSW9SW8SW7SW8SW8SW6SW3SW5W5SW7SW5SW8W6W7W5W6W5NW6N5N9N13NE10NE10NE8
1 day agoN5N3W3CalmCalmCalmCalmE33W7SW9W4SW8SW8SW10SW8SW8S9S4S3S6CalmCalmSW7
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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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wmap_A
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 (2,6,7,8)
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Ground Weather Radar Station Grand Rapids/Muskegon, MI
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weather_mapweather_map weather_map

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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.