Thursday, August24, 2017 L-36.com


Marine Weather and Tides
La Porte, IN

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:03AMSunset 7:34PM Wednesday August 23, 2017 11:56 PM CDT (04:56 UTC) Moonrise 8:01AMMoonset 8:52PM Illumination 4% Phase: Waxing Crescent; Moon at 2 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 NEw Buffalo Mi To St Joseph Mi-michigan City In To New Buffalo Mi- 1050 Pm Edt Wed Aug 23 2017
Overnight..East wind 5 to 10 knots. Partly cloudy. Slight chance of waterspouts. Slight chance of showers toward daybreak. Waves 1 to 3 feet.
Thursday..East wind 5 to 10 knots backing north 5 to 15 knots in the afternoon. Slight chance of waterspouts in the morning. Slight chance of showers through the day. Waves 1 to 2 feet.
Thursday night..Northeast wind 10 to 15 knots veering east 5 to 10 knots after midnight. Clear. Waves 1 to 3 feet.
Friday..East wind 5 to 10 knots backing north in the afternoon. Mostly Sunny. Waves 1 to 2 feet. The water temperature off michigan city is 73 degrees...and 75 degrees off st. Joseph.
LMZ046 Expires:201708241030;;301550 FZUS53 KIWX 240250 NSHIWX Nearshore Marine Forecast for Indiana National Weather Service Northern Indiana 1050 PM EDT Wed Aug 23 2017 For waters within five nautical miles of shore on Lake Michigan LMZ043-046-241030-

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 240001
afdiwx
area forecast discussion
national weather service northern indiana
801 pm edt Wed aug 23 2017

Synopsis
Issued at 750 pm edt Wed aug 23 2017
primarily fair weather will continue through the weekend as high
pressure dominates the region. Expect a slight chance of rain
showers on lake michigan early Thursday, but overall conditions will
be dry. High temperatures will be in the 70's through the weekend.

Lows will be chilly, ranging from the upper 40's to the 50's.

Update
Issued at 750 pm edt Wed aug 23 2017
wind speeds beginning to drop off over past hour as decoupling
occurs, and speeds will continue to diminish to light northwest or
become calm through 02z. The next upstream short wave of interest
is across northern minnesota, and this wave will dive southeast
tonight into Thursday morning across the southern great lakes. A
band of rain is accompanying this feature this evening across
minnesota where decent low mid level baroclinicity exists. This
wave will not have this type of baroclinic zone to work with as it
drops southeast late tonight into tomorrow morning. However, as
previous discussion mentions, may need to watch for some isolated
shower development tomorrow morning as this forcing translates
southeast and some lake induced instability develops. A thermally
induced circulation is also being hinted at in higher res
guidance across southern lake michigan, and could also provide a
brief uptick in shower chances, mainly in the 12z-18z window
Thursday.

Short term (this evening through Thursday)
issued at 211 pm edt Wed aug 23 2017
water vapor imagery depicting short wave over southern manitoba
that will drop down through the great lakes region in the short
term. Outside of a possible stray shower up near the lake... Only
other sensible weather impact will be an increase in clouds as it
moves across the area. Cool... Dry canadian airmass will continue
to build into the region as lows tonight will drop down into the
lower 50s while added cloud cover will limit highs to upper 60s to
around 70 in NW CWA and lower 70s elsewhere on Thursday.

Long term (Thursday night through Wednesday)
issued at 211 pm edt Wed aug 23 2017
surface high pressure will build into the great lakes region and
provide ideal weather through the weekend with low humidities and
seasonably cool temps with highs in the 70s and lows in the 50s.

Plenty of model uncertainty in a low confidence pattern heading
into next week with remnants of harvey along the tx gulf coast and
a northern stream disturbance topping the western us ridge and
moving into the mid ms valley on Monday. Latest GFS now has the
northern stream wave deepening as it moves overhead on Monday
night into Tuesday. Expect limited moisture transport with this
feature as no indications at this time that it will be able to tap
into the remnants of harvey that will still be hung up along gulf
coast. ECMWF offers a weaker and slower solution in comparison
but end result from model blend will be a weak but non-zero signal
for precip in our area which model discrepancies will only act to
spread spatially and temporally through the end of the long term
period. Will at least attempt to limit effects of overdone GFS and
remove pops from Sunday night. Will also smooth out the spurious
looking bullseye pop areas in out periods as they have no physical
basis or validity.

Aviation (for the 00z tafs through 00z Thursday evening)
issued at 750 pm edt Wed aug 23 2017
no major changes for the 00z tafs with focus for this forecast
cycle on next short wave poised to drop across the southern great
lakes Thursday morning from minnesota. The combination of forcing
from this wave and some lake enhancement, could yield a few
showers across northwest indiana in the 12z-18z timeframe on
Thursday. Confidence is not high enough to include a mention at
this time. Otherwise,VFR conditions expected this period with
northwest winds sharply dropping off over the next hour to mainly
light and variable to calm for much of tonight. Light
north northeast winds to continue on Thursday as center of sfc
high remains across the central northern great lakes.

Iwx watches warnings advisories
In... Beach hazards statement until 8 pm cdt this evening for inz003.

Mi... Beach hazards statement until 9 pm edt this evening for miz077.

Oh... None.

Lm... Small craft advisory until 9 pm edt this evening for lmz043-046.

Update... Marsili
synopsis... Mcd
short term... Jal
long term... Jal
aviation... Marsili
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MCYI3 - Michigan City, IN 14 mi37 min SE 4.1 G 4.1 63°F 55°F
45170 18 mi37 min SE 3.9 G 5.8 67°F 74°F2 ft55°F
BHRI3 - Burns Harbor, IN 23 mi57 min S 2.9 G 5.1 65°F 1017.6 hPa (+0.7)
45026 - St. Joseph, MI 28 mi17 min SE 3.9 G 7.8 66°F 75°F2 ft1016.9 hPa54°F
SJOM4 - St. Joseph, MI 37 mi57 min Calm G 1 61°F 1017.6 hPa (+1.0)
CMTI2 - 9087044 - Calumet, IL 45 mi39 min S 2.9 G 4.1 67°F 1016.4 hPa58°F
JAKI2 48 mi117 min SW 1.9 67°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 mi62 minN 010.00 miFair54°F53°F100%1017.6 hPa
Starke County Airport, IN18 mi62 minN 010.00 miPartly Cloudy55°F55°F100%1017.3 hPa
Valparaiso Porter County Municipal Airport, IN19 mi61 minN 010.00 miFair60°F55°F86%1017 hPa
South Bend International Airport, IN22 mi63 minN 010.00 miFair56°F54°F93%1017.1 hPa

Wind History from MGC (wind in knots)
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Last 24hrNW5NW4NW6NW4NW4NW3NW4NW3NW8NW7NW7N8
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1 day agoS9S6S9
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2 days agoS3S4S4S5S7S7S6S8S7SW9W8W9
G16
W5NW3CalmNE4S4S8S6SW6S3CalmS8SW8

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Midwest    EDIT
Geos

Wind Forecast for Northern Indiana, IN (0,6,7,8)
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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.