Wednesday, April1, 2020
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Marine Weather and Tides
New Buffalo, 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 6:27AMSunset 7:14PM Wednesday April 1, 2020 3:44 AM CDT (08:44 UTC) Moonrise 11:42AMMoonset 2:24AM Illumination 58% Phase: Waxing Gibbous; Moon at 8 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 Expires:202004011615;;393724 Fzus53 Kiwx 010758 Nshiwx Nearshore Marine Forecast National Weather Service Northern Indiana 358 Am Edt Wed Apr 1 2020 For Waters Within Five Nautical Miles Of Shore On Lake Michigan Lmz043-046-011615- New Buffalo Mi To St Joseph Mi-michigan City In To New Buffalo Mi- 358 Am Edt Wed Apr 1 2020
Today..Northwest wind 5 to 10 knots. Cloudy in the morning then becoming partly cloudy. Waves 1 to 3 feet.
Tonight..North wind 5 to 10 knots veering northeast after midnight. Mostly clear through midnight then becoming partly cloudy. Waves around 1 foot.
Thursday..Southeast wind 5 knots backing north in the afternoon. Partly cloudy. Waves around 1 foot.
Thursday night..East wind 5 to 10 knots veering southeast after midnight. Partly cloudy through midnight then becoming mostly cloudy. Waves around 1 foot. The water temperature off michigan city is 40 and 40 degrees at st. Joseph.
LMZ046


7 Day Forecast for Marine Location Near New Buffalo, MI
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location: 41.79, -86.74     debug


Area Discussion for - Northern Indiana, IN
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FXUS63 KIWX 010802 AFDIWX

Area Forecast Discussion National Weather Service Northern Indiana 402 AM EDT Wed Apr 1 2020

SYNOPSIS. Issued at 355 AM EDT Wed Apr 1 2020

Cloudy skies are expected to persist across most of the region today although some clearing is possible this afternoon across southwest Lower Michigan into portions of northwest Indiana. A few sprinkles or light rain showers will be possible along and east of Interstate 69 today, but most locations should remain dry. Skies will begin to clear tonight, with sunny to partly cloudy skies for Thursday. High temperatures today will range from the 45 to 50 degrees, and low temperatures tonight will fall back into the mid 30s.

SHORT TERM. (Today and Tonight) Issued at 355 AM EDT Wed Apr 1 2020

Weakly cyclonic flow will persist today as a couple of weak short waves progress through western periphery of eastern Great Lakes negative upper height anomaly. Combination of these short waves and steep low level lapse rates should promote some very weak sfc based instability today, with a potential of some scattered sprinkles/light rain showers. Greatest chance still appears to be east of the Interstate 69 corridor this afternoon. Inversion heights should slightly lower in mid level subsident regime which will limit diurnal enhanced instability. Thus, will continue to keep PoPs below 15 today, with sprinkles mention, but cannot rule out a few isolated showers this afternoon with some measurable rain. Low clouds should be hard to erode today as inversion is reinforced by broad mid level subsidence. The exception to this could be across far northwest Indiana and southwest Lower Michigan where anticyclone building across the western Great Lakes should be strengthened over southern Lake Michigan with better near sfc divergent flow developing. With core of low level thermal trough shifting east today, and slight moderation of this airmass, high temps should be about 5 degrees warmer than yesterday into the 45 to 50 degree range.

For tonight, quiet weather in store with better chance of more substantial clearing as decoupling occurs and as low/mid level ridge axis makes more significant eastward push across the southern Great Lakes.

LONG TERM. (Thursday through Tuesday) Issued at 355 AM EDT Wed Apr 1 2020

Large scale flow amplification will result in fairly stable longwave pattern for mid-late to late week, with only slow eastward progression of amplifying central CONUS upper level ridge. Better insolation on Thursday and warming low levels with approach of ridge axis should result in sharper warming trend with highs from mid 50s east to upper 50s/around 60 far west. The quiet weather will continue into Friday with little progression in the longwave pattern. Increasing cloudiness is expected later Friday into Saturday as ridge axis slowly pushes east. The approaching upstream low/mid level moisture axis will be relatively narrow in scope given the amplifying ridge over the next few days, but low level trough should slow its eastward progression as lead short wave lifts northeast across the Upper Midwest. Have continued with high chance PoPs Friday night into Saturday. Duration of these higher rain chances Saturday night into perhaps Sunday will be somewhat dependent on timing and strength of an additional mid/upper level short wave trough shifting east from the central Rockies, and the resultant impact on the aforementioned low level trough timing/strength.

An abrupt transition back to warm advection pattern is expected for early next week as broad low amplitude upper ridging becomes established downstream of cutting off southwest CONUS/Baja of California upper level trough. Northern stream impulses are expected to interact with broad low level theta-e ridging across the region for increasing rain potential Mon-Tue, with perhaps some better chances of thunder toward end of this forecast period. This stronger advective pattern should push highs to around 70 by Tuesday.

AVIATION. (For the 06Z TAFS through 06Z Wednesday Night) Issued at 117 AM EDT Wed Apr 1 2020

Large scale north to northeast flow will keep a steady supply of low level moisture into northern Indiana. Weak embedded systems will bring some light showers at times. Fairly widespread IFR ceilings were just upstream over far southern Lower Michigan into northwest Ohio. Some of these lower clouds should reach the terminals early this morning. May be too optimistic with VFR ceilings this afternoon or evening.

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

SYNOPSIS . Marsili SHORT TERM . Marsili LONG TERM . Marsili 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 10 mi55 min N 11 G 12 38°F 37°F
CMTI2 - 9087044 - Calumet, IL 42 mi57 min NNW 7 G 13 37°F 1016.2 hPa37°F
CHII2 - Chicago, IL 45 mi55 min NNW 17 G 19 38°F 37°F
CNII2 46 mi45 min N 6 G 11 38°F 34°F
OKSI2 48 mi105 min NNE 6 G 8 40°F
SVNM4 - South Haven, MI 49 mi45 min N 7 G 8 39°F

Wind History for Calumet Harbor, IL
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Michigan City Municipal Airport, IN7 mi50 minNNW 710.00 miOvercast37°F37°F100%1016.6 hPa
South Bend International Airport, IN23 mi51 minNW 710.00 miOvercast39°F36°F89%1016 hPa

Link to 5 minute data for KMGC

Wind History from MGC (wind in knots)
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Last 24hrN5N4N5N5N4N5N6N6N8N7N8N10N11N8
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N9N8N8N6N4N4NW4N5N5
1 day agoNW13NW7
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N8N9N9N6NE6NE4CalmCalmCalmN3N4N5N5N8N6
2 days agoSW10
G15
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G27
SW16
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G36
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G36
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W9W10
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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 (4,6,7,8)
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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.