Sunday, March24, 2019 L-36.com


Marine Weather and Tides
Montague, 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 7:39AMSunset 8:03PM Sunday March 24, 2019 4:52 AM EDT (08:52 UTC) Moonrise 11:33PMMoonset 9:07AM Illumination 88% Phase: Waning Gibbous; Moon at 18 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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LMZ872 Expires:201903241530;;835883 Fzus63 Kmkx 240824 Glflm Open Lake Forecast For Lake Michigan National Weather Service Milwaukee/sullivan Wi 324 Am Cdt Sun Mar 24 2019 For Waters Beyond Five Nautical Miles Of Shore On Lake Michigan. Waves Are Provided As A Range Of Significant Wave Heights, Which Is The Average Of The Highest 1/3 Of The Wave, Along With The Average Height Of The Highest 10% Of The Waves Which Will Occasionally Be Encountered.
Synopsis.. A strong cold front over northern lake superior into far northern minnesota will move south across lake michigan today. Gusty north to northeast winds are expected with the frontal passage, including gale force winds from late this afternoon into late tonight over the southern two thirds of the lake. High waves will quickly build this afternoon and continue into Monday. Quiet weather conditions are then expected Monday into Tuesday, as high pressure of 30.5 inches moves from the northern plains into the central great lakes region. Warmer air moving into the region Wednesday into Thursday night will bring the next chance for gusty southerly winds over lake michigan. Lmz080-567-669-671-673-675-777-779-868-870-872-874-876-878-241530- lake michigan from michigan city in to st. Joseph mi 5 nm offshore to mid lake- lake michigan from two rivers to sheboygan wi 5 nm offshore to mid lake- lake michigan from sheboygan to port washington wi 5 nm offshore to mid lake- lake michigan from port washington to north point light wi 5 nm offshore to mid lake- lake michigan from north point light to wind point wi 5 nm offshore to mid lake- lake michigan from wind point wi to winthrop harbor il 5 nm offshore to mid lake- lake michigan from winthrop harbor to wilmette harbor il 5 nm offshore to mid lake- lake michigan from wilmette harbor il to michigan city in 5 nm offshore to mid lake- lake michigan from pentwater to manistee mi 5 nm offshore to mid lake- lake michigan from whitehall to pentwater mi 5 nm offshore to mid lake- lake michigan from grand haven to whitehall mi 5 nm offshore to mid lake- lake michigan from holland to grand haven mi 5 nm offshore to mid lake- lake michigan from south haven to holland mi 5 nm offshore to mid lake- lake michigan from st. Joseph to south haven mi 5 nm offshore to mid lake- 324 am cdt Sun mar 24 2019 two rivers wi to manistee mi south...
.gale warning in effect from late this afternoon through late tonight...
Today..Southwest winds 10 to 15 kt increasing to 10 to 20 kt late this morning, then becoming west 15 to 25 kt early this afternoon veering to north gales to 35 kt late. Slight chance of rain this morning, then chance of rain this afternoon. Waves 2 to 4 ft building to 5 to 8 ft occasionally to 10 ft.
Tonight..North gales to 35 kt becoming northeast to 30 kt. Chance of rain in the evening. Waves 8 to 11 ft occasionally to 14 ft subsiding to 7 to 10 ft occasionally to 13 ft.
Monday..Northeast winds to 30 kt becoming north 15 to 25 kt. Waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to 6 ft occasionally to 8 ft.
Monday night..North winds 15 to 25 kt becoming northeast 10 to 20 kt. Waves 4 to 6 ft occasionally to 8 ft.
Tuesday..East winds 10 to 15 kt veering to south 10 to 20 kt. Waves 2 to 4 ft subsiding to 1 to 2 ft.
Tuesday night..South winds 10 to 20 kt. Waves 1 to 3 ft.
Wednesday..South winds to 30 kt. Waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.
Thursday..South winds to 30 kt. Chance of rain showers. Waves 5 to 8 ft occasionally to 10 ft.
LMZ872


7 Day Forecast for Marine Location Near Montague, MI
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location: 43.14, -87.03     debug


Area Discussion for - Grand Rapids, MI
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Fxus63 kgrr 240721
afdgrr
area forecast discussion
national weather service grand rapids mi
321 am edt Sun mar 24 2019
latest update...

synopsis discussion

Synopsis
Issued at 143 am edt Sun mar 24 2019
- mild today with a few showers possible later today into tonight
- cooler to start the work week
- mild for mid week then showery and cooler

Discussion (today through next Saturday)
issued at 143 am edt Sun mar 24 2019
the storm system that was to bring some showers to the region
today into tonight is looking weaker with time. Part of this
trend is due to the stronger mid level confluent flow across mi.

Subsidence associated with this feature will act to limit the
humidity levels in the lower parts of the atmosphere. Also the
amplitude of the wave decreases with time as it bumps into the
confluent flow which ends up taking a track further south of the
area. So as the precipitation tries to move in... Much of it will
dry up. There is still a potential for showers but the risk is
lower and shifted to mainly central and southern parts of the
region.

A cooler airmass continues to filter in from the north into
Monday. The 925 mb thermal trough tracks through mi on Monday.

Thus this should be the coolest day. Well below normal
temperatures will occur... Especially Tuesday morning with
temperatures in the teens to low 20s to start the day. Not much
improvement to the high temperatures is forecasted for
Tuesday... Still below normal.

Typical of spring time the pattern shifts Wednesday into Thursday.

A southwesterly low level jet moves in during this time and that
will advect a milder airmass into the area. Above normal
temperatures are forecasted and we may make a run at 60 degrees
for Thursday. Stay tuned on this one as the latest high res euro
is showing a cold front dropping down from the northwest thu. Any
acceleration of this could impact high temperatures on Thursday
considerably.

A storm system that comes ashore in ca Wednesday crosses the
rockies and enters the plains for the end of the week. A northern
stream wave tries to catch up to this system as it enters the
great lakes region Friday into Saturday. This would support a
strengthening storm system tracking through near mi which will
need to be monitored closely. There is some potential for an
overrunning pattern with shallow cold air undercutting the gulf
moisture advecting into this potential storm system which may
support heavier precipitation.

Aviation (for the 06z tafs through 06z Sunday night)
issued at 1250 am edt Sun mar 24 2019
little change to the going forecast. Light rain still expected at
the southern TAF sites later this afternoon where MVFR CIGS will
also develop. Otherwise,VFR expected at the northern TAF sites.

Hydrology
Issued at 330 pm edt Sat mar 23 2019
rivers primarily in the grand and muskegon river basins will
continue to fall in the coming days with no significant
precipitation expected over the next four to five days. River level
falls across the far north may be slower than normal as gradual
snowmelt continues; however, no flooding is expected in the coming
days. Chances for precipitation, possibly widespread, will
increase toward the end of next week.

Grr watches warnings advisories
None.

Synopsis... Mjs
discussion... Mjs
aviation... 04
hydrology... Borchardt


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MKGM4 - Muskegon, MI 37 mi42 min SSW 9.9 G 9.9 33°F 1023.1 hPa30°F
MLWW3 - Milwaukee, WI 46 mi42 min 40°F
PWAW3 - Port Washington, WI 48 mi72 min W 1.9 G 2.9 38°F 1022 hPa

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Muskegon, Muskegon County Airport, MI40 mi57 minSW 810.00 miFair38°F24°F57%1022.2 hPa

Wind History from MKG (wind in knots)
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Last 24hrW3CalmCalmCalmCalmE33W7SW9W4SW8SW8SW10SW8SW8S9S4S3S6CalmCalmSW7SW9SW8
1 day agoN8N10N14NW10N12N17
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2 days agoN4NE3N5N9N5N6N5N7N7W7NW10NW8W12W6SW9SW6--SW11SW11SW12SW8W6NW7N7

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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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

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Wind Forecast for Grand Rapids, MI (4,6,7,8)
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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.