Friday, March5, 2021
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Marine Weather and Tides
Saugatuck, MI

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:11AMSunset 6:40PM Friday March 5, 2021 8:05 PM EST (01:05 UTC) Moonrise 1:25AMMoonset 11:00AM Illumination 52% Phase: Third Quarter Moon; Moon at 22 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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LMZ874 Expires:202103060430;;523034 Fzus63 Kmkx 052032 Glflm Open Lake Forecast For Lake Michigan National Weather Service Milwaukee/sullivan Wi 232 Pm Cst Fri Mar 5 2021 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.. Strong high pressure of 30.7 inches will remain just west of hudson bay into this evening, before slowly shifting southeast through the weekend until its over the appalachia region by Sunday night. Northwest to north winds are generally expected today, becoming mainly north tonight into Saturday. Winds should shift to the south on Sunday, with south to southwest winds into next week. These winds may become gusty at times in the early to middle portions of the week. && lmz080-669-671-673-675-777-779-870-872-874-876-878-060430- lake michigan from michigan city in to st. Joseph mi 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 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- 232 pm cst Fri mar 5 2021 sheboygan wi to pentwater mi south...
Tonight..North winds 10 to 20 kt. Waves 2 to 4 ft building to 3 to 5 ft.
Saturday..North winds 10 to 20 kt diminishing to 10 to 15 kt. Waves 3 to 5 ft subsiding to 2 to 4 ft.
Saturday night..North winds 10 to 15 kt veering to east. Waves 2 to 4 ft subsiding to 1 to 2 ft.
Sunday..South winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 2 ft building to 3 to 5 ft.
Sunday night..South winds 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft.
Monday..Southwest winds 10 to 20 kt diminishing to 10 to 15 kt. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.
Monday night..Southwest winds 10 to 15 kt. Waves 1 to 3 ft.
Tuesday..South winds 10 to 20 kt. Waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft.
Wednesday..South winds 15 to 25 kt increasing to 30 kt. Chance of rain. Waves 6 to 9 ft occasionally to 12 ft.
LMZ874


7 Day Forecast for Marine Location Near Saugatuck, MI
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location: 42.84, -86.63     debug


Area Discussion for - Grand Rapids, MI
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FXUS63 KGRR 052331 AFDGRR

Area Forecast Discussion National Weather Service Grand Rapids MI 631 PM EST Fri Mar 5 2021

LATEST UPDATE . Aviation

SYNOPSIS. Issued at 242 PM EST Fri Mar 5 2021

- High Pressure and Fair Weather This Weekend

- Wet Weather Mid-Late Week as Low Pressure Moves Through

DISCUSSION. (This evening through next Friday) Issued at 242 PM EST Fri Mar 5 2021

- High Pressure and Fair Weather This Weekend

The tranquil weather of the past few days continues through the weekend as surface ridging holds sway. The high moves east early next week setting up a return flow of warmer air and increasing moisture, although any rain should hold off until Tuesday night or Wednesday.

- Wet Weather Mid-Late Week as Low Pressure Moves Through

We continue to watch for the potential of a period of heavy rain Thursday into Friday as low pressure tracks east of Lower Michigan and pushes a front through. The confidence in the details of the event are low, but there is fairly high confidence that the front will stall somewhere from southern Lower Michigan into the Ohio Valley and become the focus for a period of heavy rain.

The upper end of the QPF forecasts Wednesday through Friday from individual ensemble members is greater than 2 inches. The most likely place for this would be across the Kalamazoo River basin, which would bring some minor flooding to areas along the river. Fortunately, snow melt there is not an issue as it is further north. We will probably see some significant rises in the Muskegon and Pere Marquette River basins from snowmelt plus an estimated half inch of liquid QPF there.

There is a trend with the 12Z guidance from the ECMWF, GFS and GEM for the front to stall further south, which would shift the heavy rain threat out of Lower Michigan. In fact, the ECMWF is far enough south that a wave of low pressure forming along the front would only bring light QPF to the southern and central forecast area on Friday, and enough cold air may be in place by that time for the precip to be frozen.

AVIATION. (For the 00Z TAFS through 00Z Saturday evening) Issued at 631 PM EST Fri Mar 5 2021

Little question the clouds will stay away from Southwest Michigan tonight into Saturday. So, expect solid VFR conditions through Saturday evening.

A Canadian high pressure system will slowly drop southward over the next 36 hours. It's center will be crossing Lower Michigan Sunday Morning. This set up will allow the night time decoupling of the boundary layer wind field from the surface wind. That will in turn cause the surface winds more to the north. Once the sun comes back up, mixing will reconnect the boundary layer winds to the surface winds. That will cause the wind to turn more to the northwest and become gusty again, like it did today.

MARINE. Issued at 242 PM EST Fri Mar 5 2021

Small Craft Advisory continues into Saturday morning north of Pentwater as north winds stir up some choppy waves along Big and Little Sable Points.

GRR WATCHES/WARNINGS/ADVISORIES. MI . None. LM . Small Craft Advisory from midnight tonight to 10 AM EST Saturday for LMZ848-849.



SYNOPSIS . Ostuno DISCUSSION . Ostuno AVIATION . WDM MARINE . Ostuno


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HLNM4 - 9087031 - Holland, MI 23 mi47 min NNW 14 G 17 32°F 35°F1025.8 hPa28°F
MKGM4 - Muskegon, MI 31 mi25 min N 8.9 G 11 32°F 1028 hPa24°F
SVNM4 - South Haven, MI 35 mi35 min 19 G 21 34°F
SJOM4 - St. Joseph, MI 52 mi65 min NNW 8 G 9.9 34°F 1027.1 hPa (-0.0)

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Holland - West Michigan Regional Airport, MI29 mi72 minNW 1010.00 miFair32°F24°F73%1027.1 hPa

Link to 5 minute data for KBIV

Wind History from BIV (wind in knots)
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Last 24hrN5N5N5N4N4CalmNW3N3CalmCalmCalmCalmW4W8NW9
G16
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NW9NW9
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1 day agoN86N4N3N5N5N6N7
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2 days agoSW10SW14
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SW11SW8SW6SW4SW9W11W9NW7NW9NW9
G16
W13NW13NW11
G18
NW9
G16
NW7N5

Tide / Current Tables for
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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