Monday, January20, 2020
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Marine Weather and Tides
Benton Harbor, MI

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 8:05AMSunset 5:45PM Monday January 20, 2020 2:08 PM EST (19:08 UTC) Moonrise 4:18AMMoonset 2:11PM Illumination 20% Phase: Waning Crescent; Moon at 25 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- 1105 Am Est Mon Jan 20 2020
Rest of today..East winds 5 to 10 knots backing north late in the day. Cloudy with a slight chance of snow showers. Waves 1 to 2 feet.
Tonight..Northwest winds around 10 knots backing west toward daybreak. Mostly cloudy. Waves around 1 foot.
Tuesday..West winds 15 to 20 knots. Mostly Sunny. Waves 2 to 3 feet.
Tuesday night..Southwest winds 15 to 20 knots. Partly cloudy. Waves 2 to 4 feet.
Wednesday..South winds 15 to 25 knots. Mostly cloudy. Waves 2 to 4 feet.
Thursday..South winds 10 to 15 knots. Cloudy with a chance of rain and snow showers. Waves 1 to 3 feet.
Friday..East winds 10 to 15 knots. Rain showers likely and a chance of snow showers. Waves 1 foot or less.
LMZ844 Expires:202001202200;;246606 FZUS53 KGRR 201605 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 1105 AM EST Mon Jan 20 2020 For waters within five nautical miles of shore on Lake Michigan LMZ844-202200-


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 201716 AFDIWX

Area Forecast Discussion National Weather Service Northern Indiana 1216 PM EST Mon Jan 20 2020

SYNOPSIS. Issued at 300 AM EST Mon Jan 20 2020

Cold temperatures and with light lake effect snow are expected to persist today with highs in the 20s. Lows tonight are expected to drop back into the teens. Temperatures will gradually moderate into the middle of the week, with highs near 40 degrees by Thursday. A low pressure system will then bring chances for rain and snow by Friday and Saturday.

SHORT TERM. (Today and Tonight) Issued at 300 AM EST Mon Jan 20 2020

Light/cold northerly flow will persist today into tonight on the eastern fringe of an expansive sfc anticyclone dropping southeast into the Mid MS Valley. Lake clouds in far nw IN/sw MI should expand east otherwise today with some potential for isolated to scattered flurries across northern IN and Lower MI. Whether this thin stratocu deck clears out tonight under increasing subsidence will be the key to tonight's low temperature forecast as winds become calm/variable.

LONG TERM. (Tuesday through Sunday) Issued at 300 AM EST Mon Jan 20 2020

Return flow on the backside of high pressure, and in advance of Central US height falls, will set the stage for moderating temps Tuesday through Thursday. Current expectations are for dry/stable airmass within deep layer ridge axis to provide a mostly sunny Tuesday. Clouds then likely increase into Wednesday and Thursday in wake of the ridge axis, with a very low chance for a light rain/snow mix into nw IN/sw MI on Thursday as a weak front approaches from the west.

Guidance has remained steadfast in a storm system phasing over the TN or OH Valley Friday into early Saturday. This system looks to cut- off from the polar jet which is an odd evolution for late January. This should result in light rain as the primary ptype as cold air struggles to advect into this stacked low pressure system. Continued to carry mid chance to likely PoPs and rain/snow mix wording during this time given a marginal temp profile.

AVIATION. (For the 18Z TAFS through 18Z Tuesday Afternoon) Issued at 1143 AM EST Mon Jan 20 2020

North-northwest winds aloft will continue to spread lake stratus and snow into both terminals for the majority of the 18z TAF cycle. KFWA is on the eastern edge of this stratus and could drop to MVFR briefly through 00z, but think it will remain VFR until later tonight. Light flurries will also be possible at KFWA through 00z. The main impact to the KSBN terminal so far has been an period of IFR visby due to lake effect snow while ceilings have held around 3k ft. Should see improvements in visibility as inversion heights increase through this afternoon so have gone with prevailing MVFR with a TEMPO for IFR visby for the first few hours of the TAF. After 00z tonight, should see the lake stratus move further inland as winds become more northwesterly in response to high pressure dropping southeastwards from the upper Midwest into the Ohio/Tennessee River Valley. As pressure builds during the day on Tuesday, VFR ceilings should return.

IWX WATCHES/WARNINGS/ADVISORIES. IN . NONE. MI . NONE. OH . NONE. LM . NONE.

SYNOPSIS . Steinwedel/CM SHORT TERM . Steinwedel LONG TERM . Steinwedel AVIATION . CM

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 mi69 min SSW 5.1 G 8 24°F 1036.2 hPa (+0.3)
SVNM4 - South Haven, MI 22 mi39 min S 1.9 G 2.9 23°F
MCYI3 - Michigan City, IN 36 mi39 min S 2.9 G 4.1 24°F 20°F
HLNM4 - 9087031 - Holland, MI 48 mi57 min 24°F 33°F1034.4 hPa20°F

Wind History for Holland, MI
(wind in knots)    EDIT      (on/off)   Help
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N19
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G35
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E12
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SE7
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Southwest Michigan Regional Airport, MI2 mi16 minSSW 56.00 miOvercast with Haze23°F18°F81%1036.7 hPa
South Haven, South Haven Area Regional Airport, MI20 mi14 minN 05.00 miLight Snow24°F17°F76%1035.2 hPa

Link to 5 minute data for KBEH

Wind History from BEH (wind in knots)
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Last 24hrW13
G25
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63E4CalmE3NE6E5E3E3CalmSE4CalmCalmS3S3CalmCalmCalmS3S3SW5
1 day agoW22
G32
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G44
--W25
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W19W17W12W18W14W17
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W13W18W14
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2 days agoSE11
G19
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G20
SE10SE10
G18
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SE12
G20
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G23
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G25
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S9S9SW10
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G33

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_A
GEOS 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

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Northern Indiana, IN (14,3,4,5)
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Ground Weather Radar Station Northern Indiana, IN
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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 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.