Wednesday, January27, 2021
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Marine Weather and Tides
Benton Harbor, 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 7:59AMSunset 5:55PM Wednesday January 27, 2021 10:12 PM EST (03:12 UTC) Moonrise 4:42PMMoonset 7:31AM Illumination 100% Phase: Full Moon; Moon at 15 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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LMZ844 St Joseph To South Haven Mi- 1005 Pm Est Wed Jan 27 2021
.small craft advisory in effect until 7 am est Thursday...
Rest of tonight..Northeast winds 10 to 20 knots. Partly cloudy with a chance of snow showers. Waves 3 to 5 feet.
Thursday..North winds around 10 knots backing northwest. Mostly cloudy with a chance of snow showers. Waves 2 to 4 feet.
Thursday night..Northwest winds 5 to 15 knots veering north toward daybreak. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight.
Friday..Southeast winds around 10 knots. Mostly Sunny. Waves around 1 foot.
Friday night..Southeast winds 10 to 20 knots. Partly cloudy. Waves around 1 foot.
Saturday..Southeast winds 20 to 25 knots. Mostly cloudy. Waves 1 to 3 feet.
Sunday..Northeast winds 20 to 25 knots. Cloudy with a chance of snow showers. Waves 1 to 3 feet.
Monday..North winds 15 to 20 knots. Mostly cloudy. Waves 2 to 4 feet.
LMZ844 Expires:202101281000;;604218 FZUS53 KGRR 280305 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 1005 PM EST Wed Jan 27 2021 For waters within five nautical miles of shore on Lake Michigan LMZ844-281000-


7 Day Forecast for Marine Location Near Benton Harbor, MI
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location: 42.11, -86.45     debug


Area Discussion for - Northern Indiana, IN
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FXUS63 KIWX 272319 AFDIWX

Area Forecast Discussion National Weather Service Northern Indiana 619 PM EST Wed Jan 27 2021

SYNOPSIS. Issued at 308 AM EST Wed Jan 27 2021

A large high pressure area will bring a cold north flow accompanied by light lake effect snow inland south of Lake Michigan into Thursday; otherwise, partly to mostly cloudy skies are expected. Highs will be from 25 to 30. Lows the next 3 nights will be mainly in the teens. Dry conditions are expected Friday before the next system brings accumulating snow this weekend.

SHORT TERM. (This Evening through Friday night) Issued at 224 PM EST Wed Jan 27 2021

Main focus in the short term will be LES potential in far NW tonight . otherwise quiet weather remainder of the CWA through the period. Forecast soundings still indicating small window tonight of unidirectional N/NW flow below 5Kft inversion in support of LES band shifting into our far NW and favoring a single band setup. HREF members also indicating this to one degree or another and HREF mean has narrow area of 2 inch accumulation. So with marginal delta-T and shallow equilibrium level not expecting much higher accumulations and current forecast seems on track for this. Flow then becomes more NW Thursday morning along with shallow inversion heights and more large scale subsidence so expect a fairly quick dissipation to any lingering LES. Surface high pressure then builds into the region providing fair weather through Friday with seasonably cool temps . highs generally 25-30F and lows in the mid-teens.

LONG TERM. (Saturday through Wednesday) Issued at 224 PM EST Wed Jan 27 2021 Focus in the long term remains on weekend system associated with upper trough coming onshore in the western US Friday. Deterministic models continuing trend of developing this system into a closed low over the mid-MS valley Saturday night . with varying timing/placement differences noted. System will initially tap into good moisture transport from the gulf with strong ascent along the 295K surface streaming into our area ahead of this system Saturday night. Main difference from yesterdays run is less of a negative tilt in the upper trough and more of an eastward translation to a mid-Atlantic storm by the end of the weekend. Still a really favorable window presents itself for our area centered around the 06Z Sunday timeframe where the afore-mentioned conditions align over mid-level deformation zone and 100-150m 500mb height falls and good overlap of DGZ and omega in the 600-500mb layer. Southern CWA will likely see some precip type issues as low level WAA does nudge that way and model blend has 50/50 rain vs snow probabilities. Northern 2/3 thirds should initially see mostly snow and inclined to place confidence close to latest blend guidance with 80 percent prob of greater than 2 inches but still low confidence . less than 30 percent . of exceeding 4 . seems reasonable message at this time at least until system comes onshore. Possible LES in the wake of this system on Monday but not much in the way of cold air behind this and other parameters less than ideal so not expecting much more than flurries/light snow showers. High Pressure then builds into the region providing dry forecast remainder of the period with seasonable temperatures.

AVIATION. (For the 00Z TAFS through 00Z Thursday Evening) Issued at 613 PM EST Wed Jan 27 2021

Lake plume and times of snow showers/flurries over nw IN this evening may eventually swing into KSBN tonight into Thursday morning. This will likely result in variable flight conditions with high MVFR to low VFR clouds, and the potential for brief IFR/MVFR vis restrictions with any snow showers. Better shsn coverage and accum chances should remain just west of KSBN. VFR conditions are expected to generally prevail at FWA into maybe the end of the period when lake clouds are pushed eastward. Not confident on MVFR ceilings, but did go down to 3000 ft at 18Z. Winds will be northerly tonight, then shift to the northwest Thursday afternoon.

IWX WATCHES/WARNINGS/ADVISORIES. IN . NONE. MI . NONE. OH . NONE. LM . Small Craft Advisory until 10 AM EST Thursday for LMZ043-046.



SYNOPSIS . Skipper SHORT TERM . JAL LONG TERM . JAL AVIATION . Steinwedel/Cobb

Visit us at www.weather.gov/iwx

Follow us on Facebook . Twitter . and YouTube at: www.facebook.com/NWSNorthernIndiana www.twitter.com/nwsiwx www.youtube.com/NWSNorthernIndiana


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SJOM4 - St. Joseph, MI 2 mi73 min N 18 G 22 29°F 1029.5 hPa (+2.1)
SVNM4 - South Haven, MI 22 mi43 min 13 G 17 25°F
MCYI3 - Michigan City, IN 36 mi43 min NNW 24 G 27 27°F 19°F
HLNM4 - 9087031 - Holland, MI 48 mi55 min NNE 8 G 12 24°F 33°F1029.2 hPa16°F
BHRI3 - Burns Harbor, IN 49 mi43 min NNW 11 G 14 27°F 1030.5 hPa

Wind History for Holland, MI
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G24

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Southwest Michigan Regional Airport, MI2 mi20 minENE 410.00 miOvercast25°F18°F75%1030.9 hPa
South Haven, South Haven Area Regional Airport, MI20 mi18 minNNE 610.00 miLight Snow24°F17°F74%1030.1 hPa

Link to 5 minute data for KBEH

Wind History from BEH (wind in knots)
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Last 24hrNE745NE3E5NE3E4E5E8CalmE3E43E6E6E6N7N7
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5NE7NE6NE5NE8
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1 day ago--E11E10
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E11E7NE8NE75NE5NE9
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NE653--N76N7N86
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2 days agoSE3E3CalmSE3CalmCalmCalmCalmCalmCalmE4E6E75E7NE7E10E9
G15
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G16
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G19
E11
G18

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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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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 numerous 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.