Saturday, January18, 2020
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Marine Weather and Tides
Long Beach, IN

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 7:09AMSunset 4:46PM Saturday January 18, 2020 7:57 AM CST (13:57 UTC) Moonrise 2:00AMMoonset 1:03PM Illumination 41% Phase: Third Quarter Moon; Moon at 23 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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LMZ046 Michigan City In To New Buffalo Mi- 421 Am Est Sat Jan 18 2020
.gale warning in effect through Sunday morning...
.heavy freezing spray watch in effect from 4 pm est this afternoon through Sunday evening...
Today..South wind 15 to 20 knots veering southwest to 30 knots in the morning, then veering west gales to 35 knots in the afternoon. Gusts up to 40 knot gales. Cloudy. Rain in the morning, then chance of rain and snow in the afternoon. Waves 1 to 3 feet building to 8 to 12 feet occasionally to 15 feet.
Tonight..West gales to 35 knots easing to 30 knots after midnight. Gusts to 40 knot gales. Heavy freezing spray. Chance of snow showers. Waves 8 to 12 feet occasionally to 15 feet.
Sunday..West wind 20 to 30 knots with gusts to 40 knot gales early, diminishing to 15 to 25 knots during the afternoon. Freezing spray. Chance of snow showers. Waves 5 to 8 feet occasionally to 10 feet.
Sunday night..Northwest wind 10 to 20 knots. Chance of snow showers. Waves 3 to 6 feet. The water temperature off michigan city is 36 and 37 degrees at st. Joseph.
LMZ046 Expires:202001181715;;128893 FZUS53 KIWX 180921 NSHIWX Nearshore Marine Forecast National Weather Service Northern Indiana 421 AM EST Sat Jan 18 2020 For waters within five nautical miles of shore on Lake Michigan LMZ046-181715-


7 Day Forecast for Marine Location Near Long Beach, IN
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location: 41.74, -86.87     debug


Area Discussion for - Northern Indiana, IN
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FXUS63 KIWX 181214 AFDIWX

Area Forecast Discussion National Weather Service Northern Indiana 714 AM EST Sat Jan 18 2020

SYNOPSIS. Issued at 300 AM EST Sat Jan 18 2020

A wintry mix of snow, sleet, and freezing rain will change to all rain this morning. This will make for difficult travel conditions this morning. Much colder air and gusty winds are then expected to filter back into the area later this afternoon into tonight behind a cold front. This will set the stage for lake effect snow showers tonight through Sunday night, mainly across far northern Indiana and southwest Lower Michigan where light snow accumulations will be possible. High temperatures today will top out near 40 degrees. Lows tonight will drop into the single digits and teens, with highs on Sunday only in the mid teens to low 20s. Next week will feature a quiet weather pattern and slowly moderating temperatures.

SHORT TERM. (Today) Issued at 300 AM EST Sat Jan 18 2020

Trend from a wintry mix to freezing rain to rain will take place this morning from sw to ne as strong corridor of deep isentropic ascent in warm conveyor lifts through in advance of a well defined mid level shortwave. Expectations are for the surface freezing line to reach most locations south of US 30 by daybreak, central portions btw 12-14z, and far northeast zones by late morning. Additional ice accretions up to 0.20" across the entire area, and some additional snow/sleet accums in ne IN/far nw OH/sc Lower MI, will continue to create difficult travel until sfc temps warm above freezing. No changes made to the Winter Weather Advisory at this time.

Stripping away of moisture in mid levels and influx of warmer sfc temps may lead to more of a drizzle setup by the middle of the day before the system cold front swings through from west to east mid- late afternoon. A favorable isallobaric component and strong CAA will result in gusty west winds post-frontal, though gusts are mainly expected to remain below advisory criteria. This environment, steepening low level lapse rates and enough lingering synoptic moisture could be enough to drive some squally weather (snow & rain showers) for a time mid afternoon through early evening.

LONG TERM. (Tonight through Friday) Issued at 300 AM EST Sat Jan 18 2020

Attention tonight through Monday will turn to a relatively brief shot of some cold air and chances for lake effect snow showers into mainly our wnw flow belts. Low pressure will track east through New England by Sunday, with leftover trough axis across the Northern Lakes expected to pivot south through the local area late Sunday into Sunday night. Lake MI will no doubt activate in this cold/cyclonic flow regime, with the main period of interest for lake enhanced snow accums with the secondary area of convergence to drop through late Sunday-Sunday night. Otherwise, not overly impressive thermodynamic parameters, and mainly westerly flow in the convective layer, should keep activity more multi-banded and disorganized most of the period(s).

High pressure then builds in by Tuesday, with temps once again recovering to above normal values mid-late week as high pressure settles toward the East Coast and benign split flow emerges across the Lower 48. A system by around late Thursday-Friday will bring the next chance for rain.

AVIATION. (For the 12Z TAFS through 12Z Sunday Morning) Issued at 708 AM EST Sat Jan 18 2020

A very strong low level jet was helping to change the wintry mix to just rain. Lingering freezing rain at the terminals should become all rain just past the start of the TAFs as warm air advection increases. Precipitation should be just rain until colder air moves back into the area this afternoon with gusty winds.

IWX WATCHES/WARNINGS/ADVISORIES. IN . Winter Weather Advisory until 9 AM EST this morning for INZ004- 005-008-014-016>018.

Winter Weather Advisory until 11 AM EST this morning for INZ006- 007-009.

Lakeshore Flood Warning until 6 PM CST Sunday for INZ003.

MI . Winter Weather Advisory until 9 AM EST this morning for MIZ077.

Winter Weather Advisory until 11 AM EST this morning for MIZ078>081.

Lakeshore Flood Warning until 7 PM EST Sunday for MIZ077.

OH . Winter Weather Advisory until 9 AM EST this morning for OHZ015- 016-024-025.

Winter Weather Advisory until 11 AM EST this morning for OHZ001- 002-004-005.

LM . Heavy Freezing Spray Warning from 4 PM this afternoon to 7 PM EST Sunday for LMZ043-046.

Gale Warning until 7 AM EST Sunday for LMZ043-046.



SYNOPSIS . Steinwedel SHORT TERM . Steinwedel LONG TERM . Steinwedel AVIATION . Skipper

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
MCYI3 - Michigan City, IN 2 mi38 min SSE 15 G 22 36°F 35°F
SJOM4 - St. Joseph, MI 32 mi58 min Calm G 0 33°F 1006.8 hPa
CMTI2 - 9087044 - Calumet, IL 35 mi58 min 35°F 1005.8 hPa (-5.0)35°F
CHII2 - Chicago, IL 39 mi38 min S 17 G 19 35°F 35°F
CNII2 40 mi28 min S 8 G 12 35°F 34°F

Wind History for Calumet Harbor, IL
(wind in knots)    EDIT      (on/off)   Help
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E8
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G14
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G18
W5
G13

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Michigan City Municipal Airport, IN4 mi63 minS 9 G 1410.00 miOvercast34°F33°F100%1006.8 hPa
Valparaiso Porter County Municipal Airport, IN21 mi2 hrsSSE 10 G 183.00 miLight Rain Fog/Mist34°F30°F89%1009.5 hPa

Link to 5 minute data for KMGC

Wind History from MGC (wind in knots)
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Last 24hrE5SE7SE10
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1 day agoW12
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NW7NW8
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--N7
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N9N5N4N4NE3CalmCalmE3E4E4SE3E3
2 days agoCalmE3E3SE6CalmCalmCalmW5W5W5W7W7NW5NW7
G15
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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 (8,2,3,4)
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Ground Weather Radar Station Northern Indiana, IN
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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.