Saturday, April21, 2018 L-36.com


Marine Weather and Tides
Muskegon, MI

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 6:50AMSunset 8:36PM Saturday April 21, 2018 5:45 AM EDT (09:45 UTC) Moonrise 10:29AMMoonset 12:48AM Illumination 35% Phase: Waxing Crescent; Moon at 6 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- 333 Am Edt Sat Apr 21 2018
Today..Northeast winds around 5 knots backing northwest. Partly Sunny. Waves less than 1 foot.
Tonight..North winds 5 to 10 knots veering northeast after midnight. Mostly clear. Waves less than 1 foot.
Sunday..Southeast winds around 5 knots veering west, then veering north late in the day. Sunny. Waves less than 1 foot.
Sunday night..Northeast winds 5 to 15 knots veering east after midnight. Mostly clear. Waves less than 1 foot.
LMZ847 Expires:201804211515;;270032 FZUS53 KGRR 210733 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 333 AM EDT Sat Apr 21 2018 For waters within five nautical miles of shore on Lake Michigan LMZ847-211515-

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 210730
afdgrr
area forecast discussion
national weather service grand rapids mi
330 am edt Sat apr 21 2018
latest update...

synopsis short term long term marine

Synopsis
Issued at 330 am edt Sat apr 21 2018
dry weather is forecast through Monday night courtesy of an area of
high pressure that will be anchored across the great lakes region.

Some cloud cover today will keep high temperatures a bit lower than
what would be achieved under sunny skies, but we are still expecting
upper 50s once again today. Highs will push into the low 60s on
Sunday and rise into the upper 60s on Monday. Most of this month has
seen temperatures average below normal, so for those looking for
spring they will enjoy Sunday and Monday.

Short term (today through Monday)
issued at 330 am edt Sat apr 21 2018
only real item of contention in the short term, and its a small one,
is how much and how dense are the high clouds today. Models continue
to show solid high clouds streaming in from the west today with 500-
300mb layer rh values of 75-80 percent which usually results in a
mostly cloudy sky. Goes-16 IR imagery does indicate dense mid and
high clouds off to the west moving our direction. Decided to shave a
few degrees off of MOS numbers into the upper 50s given the
expectations of a dense mid high cloud deck. We should see some hazy
sunshine, but it certainly will not be full sun.

The high clouds should peel away to the south tonight leaving behind
mainly clear skies for the remainder of the short term. Highs should
reach the low 60s on Sunday and the mid to upper 60s on Monday. We
have had only 1 daily average temp above normal the entire month.

So, back to back days of a good deal of sunshine and above normal
highs will be welcomed by most.

Long term (Monday night through Friday)
issued at 330 am edt Sat apr 21 2018
fair weather will continue through Monday night. An upper level
trough will move into the lower great lakes region Tuesday and
several upper level disturbances will bring a chance of rain
showers. Some rain showers will linger Tuesday night into early
Wednesday as a weak cold front and stronger upper level disturbance
moves through.

Fair weather will briefly return Wednesday afternoon through most of
Thursday as a high pressure ridge builds in. However a stronger cold
front will bring another chance of showers Thursday night into
Friday.

After a prolonged period near normal temperatures Tuesday through
Thursday temperatures will return to below normal for this time of
year by Friday into the weekend with an upper level trough in place
over the eastern CONUS by then.

Aviation (for the 06z tafs through 06z Saturday night)
issued at 1145 pm edt Fri apr 20 2018
vfr conditions will continue at all the terminals through the next
24 hours with wind speeds generally AOB 10 kts. A lake breeze will
develop at kmkg early Saturday afternoon and cause wind speeds to
increase to around 10-15 kts and veer to the west. Mid to high
level cloud cover will move in during the day Saturday and then
move out from north to south Saturday night.

Marine
Issued at 330 am edt Sat apr 21 2018
high pressure is still forecast to be situated across the great
lakes region into Tuesday. The high will provide light winds and
limited wave action. Wave models have forecast wave heights at a
foot or less through Tuesday.

Hydrology
Issued at 124 pm edt Fri apr 20 2018
lowland flooding near riverbanks will be ongoing over the next
several days as water from last weekend's mixed precipitation event
moves through the river basins. Since no heavy rain events are
anticipated through at least early next week, rivers will gradually
crest then subside with only nuisance level impacts.

Grr watches warnings advisories
Mi... None.

Lm... None.

Synopsis... Duke
short term... Duke
long term... Laurens
aviation... Laurens
hydrology... Cas
marine... Duke


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MKGM4 - Muskegon, MI 4 mi35 min NNE 1.9 G 1.9 32°F 1032.5 hPa26°F
45161 6 mi45 min N 1.9 G 1.9
45029 23 mi25 min ENE 1.9 G 1.9 35°F 37°F1031.9 hPa26°F
HLNM4 - 9087031 - Holland, MI 32 mi45 min ENE 5.1 G 6 33°F 1029.9 hPa (-0.6)28°F
LDTM4 - 9087023 - Ludington, MI 50 mi45 min E 1.9 G 2.9 28°F 23°F

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Muskegon, Muskegon County Airport, MI3 mi50 minN 010.00 miFair29°F21°F72%1031.6 hPa
Fremont Municipal Airport, MI20 mi50 minN 010.00 miFair30°F21°F72%1030.8 hPa

Wind History from MKG (wind in knots)
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Last 24hrCalmCalmCalmCalmCalm3W7W9W10W9W10W10NW7W8NW4NW3CalmCalmCalmE3CalmCalmCalmCalm
1 day agoNW6NW4NW6N7N10N10N14N13NW10NW9NW13N11NW14
G23
NW8NW5NW6NW3CalmNW3NW4CalmCalmCalmCalm
2 days agoN3CalmN4N7NE7NE7E5NE5NE11E12NE8E9E6E7NE6N7N5N5N3N5N6N6N6NW5

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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Grand Rapids, MI (5,6,7,8)
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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.