Saturday, March25, 2017 L-36.com


Marine Weather and Tides
Roosevelt Park, MI

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:35AMSunset 8:05PM Saturday March 25, 2017 9:39 AM EDT (13:39 UTC) Moonrise 5:25AMMoonset 4:27PM Illumination 4% Phase: Waning Crescent; Moon at 28 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- 718 Am Edt Sat Mar 25 2017
.small craft advisory in effect through late tonight...
Today..East winds 15 to 25 knots. Rain. Waves 1 to 2 feet.
Tonight..East winds 15 to 25 knots. Rain. Waves 1 to 2 feet.
Sunday..Southeast winds 10 to 20 knots. Rain likely. Waves around 1 foot.
Sunday night..South winds 5 to 10 knots veering west toward daybreak. Cloudy with a chance of showers. Waves 1 foot or less.
LMZ847 Expires:201703251530;;053066 FZUS53 KGRR 251118 NSHGRR NEARSHORE MARINE FORECAST NATIONAL WEATHER SERVICE GRAND RAPIDS MI 718 AM EDT SAT MAR 25 2017 FOR WATERS WITHIN FIVE NAUTICAL MILES OF SHORE ON LAKE MICHIGAN LMZ847-251530-

7 Day Forecast for Marine Location Near Roosevelt Park, MI
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location: 43.22, -86.36     debug


Area Discussion for - Grand Rapids, MI
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Fxus63 kgrr 251118
afdgrr
area forecast discussion
national weather service grand rapids mi
718 am edt Sat mar 25 2017
latest update...

aviation/marine

Synopsis
Issued at 315 am edt Sat mar 25 2017
wet weather will continue into early next week as low pressure
slowly approaches lower michigan from the southwest. Temperatures
will be held into the 40s today as clouds and showers become
widespread.

Short term (today through Monday)
issued at 315 am edt Sat mar 25 2017
model continuity was good so few changes were made in the near
term. Likely to categorical pops through the period with some
wavering in the coverage of showers as low center approaches.

Temperature forecast is also fairly consistent to prior forecast
as clouds and showers will prevent mixing today of shallow cold
air that advected in Friday evening with low level northeast flow.

Coolest conditions will be across the northeast forecast zones
where maxes today will be hard pressed to get out of the 30s. Do
not see any issues with freezing rain as sfc temps should remain
above freezing.

Long term (Monday night through Friday)
issued at 315 am edt Sat mar 25 2017
an unsettled and showery pattern will continue Monday night as a
trough of low pressure continues to bring more showers. Low pressure
over the ARKLATEX region will move northeast along a frontal
boundary and perhaps bring more numerous showers to our southern
fcst area Monday night. However a consensus of latest medium range
guidance now suggests that the steadier pcpn Monday night into
Tuesday will stay south of our fcst area across in/oh.

Dry weather will finally return Tuesday through midweek as a high
pressure ridge builds in from the north. The next low pressure
system will bring a chance of showers as early as late Wednesday
night with a better chance for rain Thursday through Friday as a
southern plains low pressure system moves northeast into the lower
great lakes and ohio valley regions. Temperatures will return to
near normal for this time of year through the long range forecast
period.

Aviation (for the 12z tafs through 12z Sunday morning)
issued at 717 am edt Sat mar 25 2017
widespread ifr and areas of lifr conditions expected through
Sunday morning with low clouds and rain reducing visibility blo 2
miles. East winds around 10 knots with some gusts to 20 knots at
times today.

Marine
Issued at 717 am edt Sat mar 25 2017
marginal small craft advisory conditions today and tonight.

Decided to cut back the end time of the SCA to 5 am to match up
better with advisory to the north.

Hydrology
Issued at 1241 pm edt Fri mar 24 2017
a wet pattern will continue through much of the next seven days
with multiple rain events taking place. Rainfall totals over the
next week will generally be in the 0.75 to 1.50 inch range. This
will result in rises on area rivers with some area rivers reaching
bankfull starting late this weekend and continuing at bankfull
potentially through the end of next week. Significant river
flooding is not anticipated with the amount of rainfall that is
expected over the next week.

Grr watches/warnings/advisories
Mi... None.

Lm... Small craft advisory until 5 am edt Sunday for lmz844>849.

Synopsis... Ostuno
short term... Ostuno
long term... Laurens
aviation... Ostuno
hydrology... Maczko
marine... Ostuno


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MKGM4 - Muskegon, MI 1 mi40 min E 16 G 22 39°F 1021.8 hPa (+2.1)36°F
HLNM4 - 9087031 - Holland, MI 32 mi52 min ENE 21 G 25
LDTM4 - 9087023 - Ludington, MI 50 mi52 min E 6 G 13 38°F 33°F

Wind History for Holland, MI
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NE9
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Muskegon, Muskegon County Airport, MI6 mi45 minENE 11 G 2110.00 miOvercast40°F36°F86%1021.5 hPa

Wind History from MKG (wind in knots)
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Last 24hrS10S10SW7SW8SW5CalmNW9CalmNW7NW7N6NE8NE8NE9NE9NE9E9E11E12NE8E11E12
G20
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1 day agoSE12SE11SE11SE12SE13
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2 days agoNE12NE944W7W7W9NW9W9W7NW3N5CalmCalmCalmCalmSE3SE4SE6SE5SE7SE6SE7SE5

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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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Grand Rapids, MI (9,2,3,4)
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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.