Saturday, December7, 2019
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Marine Weather and Tides
La Porte, IN

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:58AMSunset 4:18PM Saturday December 7, 2019 8:20 AM CST (14:20 UTC) Moonrise 3:03PMMoonset 3:06AM Illumination 81% Phase: Waxing Gibbous; Moon at 11 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- 256 Am Est Sat Dec 7 2019
.small craft advisory in effect from this evening through Sunday afternoon...
Today..South wind 10 to 15 knots. Mostly Sunny. Waves 1 to 3 feet.
Tonight..South wind 15 to 20 knots. Gusts up to 25 knots. Mostly clear through midnight then becoming partly cloudy. Waves 1 to 3 feet building to 2 to 4 feet after midnight.
Sunday..Southwest wind 15 to 25 knots. Gusts up to 30 knots. Cloudy. Waves 2 to 4 feet.
Sunday night..Southwest wind 10 to 15 knots. Rain. Waves 1 to 2 feet. The water temperature off michigan city is 39 degrees...and 41 degrees off st. Joseph.
LMZ046 Expires:201912071715;;976417 FZUS53 KIWX 070756 NSHIWX Nearshore Marine Forecast National Weather Service Northern Indiana 256 AM EST Sat Dec 7 2019 For waters within five nautical miles of shore on Lake Michigan LMZ046-071715-


7 Day Forecast for Marine Location Near La Porte, IN
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location: 41.59, -86.71     debug


Area Discussion for - Northern Indiana, IN
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FXUS63 KIWX 071142 AFDIWX

Area Forecast Discussion National Weather Service Northern Indiana 642 AM EST Sat Dec 7 2019

SYNOPSIS. Issued at 342 AM EST Sat Dec 7 2019

Quiet weather is are expected through the weekend as high pressure dominates. After early morning lows near 20, highs will rise to near 40 today and then near 50 Sunday. Chances for rain will increase Sunday night, transitioning to much colder temperatures and chances for lake effect snow showers Tuesday into Wednesday.

SHORT TERM. (Today through Sunday) Issued at 340 AM EST Sat Dec 7 2019

High pressure was over the area early this morning and had allowed temperatures to drop to near 20 degrees. Skies will stay mostly clear today with the high over the region and be accompanied by reasonably mild weather with highs near 40. Return flow will increase Sunday with highs reaching close to 50. Have kept Sunday dry for now; however, rain should develop rapidly Sunday night ahead of the next system.

LONG TERM. (Sunday night through Friday) Issued at 340 AM EST Sat Dec 7 2019

Many changes are ahead for early next week. Temperatures will start off very mild Monday with rain ahead of a strong cold front. The front is expected to move across the forecast area late Monday and Monday night with a flash freeze possible (meaning temperatures will fall so fast that water on roads may freeze and cause travel issues Monday night). Most of the rain from the system will end before temperatures fall below freezing; however, remaining rain will change to snow Monday night and quickly transition to lake effect snow as much colder air spreads over the relatively warm waters of Lake Michigan. Lake effect snow should develop rapidly Monday night and persist into Wednesday afternoon, and possibly through Wednesday night as delta T values rise to near 25. At this time it looks like system snow will be relatively light of less than an inch, but the potential for heavy lake effect snow exists, especially over far southern Lower Michigan given a more west fetch expected. The initial run through of total snow amounts by early Thursday appears to be in the range of 3 to 6 inches from Berrien into west St Joe counties (Michigan) with lesser amounts south over Indiana. As far as temperatures, kept both lows and highs on the low end of model guidance with lows Tuesday night and Wednesday night around 10 to 15 and highs Wednesday around 20. Temperatures may fall well below 10 degrees where skies clear out and where snow cover exists.

AVIATION. (For the 12Z TAFS through 12Z Sunday Morning) Issued at 639 AM EST Sat Dec 7 2019

VFR conditions persist through the period. Strong surface ridge across the southern Great Lakes region providing dry/subsident airmass. Modest return southerly flow develops late Sunday morning as the ridge shifts eastward into western Pennsylvania.

IWX WATCHES/WARNINGS/ADVISORIES. IN . NONE. MI . NONE. OH . NONE. LM . Small Craft Advisory from 10 PM this evening to 4 PM EST Sunday for LMZ043-046.



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

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 14 mi30 min SSE 8 G 9.9 28°F 22°F
SJOM4 - St. Joseph, MI 37 mi80 min SSE 5.1 G 8 27°F 1028.8 hPa (-0.3)
CMTI2 - 9087044 - Calumet, IL 45 mi50 min S 5.1 G 8 28°F 1028.1 hPa25°F

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Michigan City Municipal Airport, IN10 mi25 minS 410.00 miOvercast28°F28°F100%1029.8 hPa
Starke County Airport, IN18 mi25 minSE 310.00 miFair19°F17°F93%1029.5 hPa
Valparaiso Porter County Municipal Airport, IN19 mi84 minN 02.00 miFog/Mist19°F16°F88%1030.2 hPa
South Bend International Airport, IN22 mi26 minSSE 410.00 miOvercast25°F21°F85%1030.7 hPa

Link to 5 minute data for KMGC

Wind History from MGC (wind in knots)
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N8N7N7CalmCalmCalmCalmCalmCalmCalmCalmS6CalmCalmCalmCalmCalm
1 day agoSW3CalmSW4SW5S6S6S8S4S4S6S4S5S7S10SW12
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2 days agoW5
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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 (9,2,3,4)
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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 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.