Tuesday, December10, 2019
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Marine Weather and Tides
Constantine, MI

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 7:58AMSunset 5:15PM Tuesday December 10, 2019 5:40 PM EST (22:40 UTC) Moonrise 4:24PMMoonset 6:08AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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- 405 Pm Est Tue Dec 10 2019
.small craft advisory in effect through Wednesday evening...
Through early evening..West winds 20 to 25 knots. Partly Sunny with a chance of snow showers. Waves 4 to 6 feet.
Tonight..West winds to 30 knots. Snow showers likely. Waves 4 to 6 feet.
Wednesday..West winds to 30 knots veering northwest 15 to 20 knots late in the day. Snow showers likely. Waves 5 to 7 feet.
Wednesday night..West winds 5 to 15 knots backing south 10 to 20 knots after midnight. Partly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight.
Thursday..South winds 15 to 25 knots. Mostly cloudy. Waves 1 to 2 feet building to 2 to 4 feet.
Thursday night..Southwest winds 15 to 20 knots. Mostly cloudy. Waves 2 to 4 feet.
Friday..South winds 10 to 15 knots. Mostly cloudy. Waves 1 to 3 feet.
Saturday..Southwest winds 10 to 15 knots veering west 15 to 20 knots late in the day. Cloudy with a chance of rain showers. Waves 1 to 2 feet building to 2 to 4 feet late in the day.
Sunday..Northwest winds 15 to 25 knots. Cloudy. Waves 6 to 8 feet.
LMZ844 Expires:201912110900;;156962 FZUS53 KGRR 102105 NSHGRR Nearshore Marine Forecast National Weather Service Grand Rapids MI 405 PM EST Tue Dec 10 2019 For waters within five nautical miles of shore on Lake Michigan LMZ844-110900-


7 Day Forecast for Marine Location Near Constantine, MI
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location: 41.84, -85.68     debug


Area Discussion for - Northern Indiana, IN
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FXUS63 KIWX 101939 AFDIWX

Area Forecast Discussion National Weather Service Northern Indiana 239 PM EST Tue Dec 10 2019

SYNOPSIS. Issued at 239 PM EST Tue Dec 10 2019

Lake effect snow showers and flurries will remain possible tonight and Wednesday, with light accumulations possible across far northern Indiana and Lower Michigan. It will remain cold otherwise with lows in the low to mid teens tonight and highs in the mid to upper 20s tomorrow. Warming temperatures and dry conditions are then expected into Thursday and Friday, with chances for rain and snow to follow this weekend.

SHORT TERM. (This Evening through Wednesday) Issued at 239 PM EST Tue Dec 10 2019

Slight backing of the wind field and infusion of drier/subsident air in wake of this morning's shortwave will continue to favor a downtrend in LES coverage and chances into this evening. A subtle mid level impulse will trail into the Lower Great Lakes tomorrow morning. Dry airmass in place and shearing nature to this feature should preclude much more than a few flurries or light snow showers, save for along and north of the Toll Road in north- central IN and southwest MI where some additional lake enhancement is anticipated. These locations could see a coating to 1 inch which could create a few issues on roads. Chilly otherwise with lows in the low-mid teens tonight, and highs in the mid-upper 20s tomorrow.

LONG TERM. (Wednesday Night through Tuesday) Issued at 239 PM EST Tue Dec 10 2019

Warming temperatures and dry conditions are expected Wednesday night through Friday as high pressure settles east toward the East Coast and troughing develops across the Central US in advance of a strong pacific jet. Downstream buckling of the mid-upper level height field in advance of this powerful pacific upper jet may force a trough axis through later Saturday into Saturday night with rain and snow chances followed by a shot of colder air Sunday. Confidence is low on impacts/amounts/timing however as model guidance continues to struggle on how to handle the interaction of low pressure lifting out of the Gulf of Mexico and parade of pacific origin shortwaves approaching from the west.

The synoptic system to follow into early next week still looks to have a snow threat on its northern fringe somewhere between the Ohio Valley and Great Lakes. Ensembles of the ECMWF and GFS remain all over regarding track and intensity at this forecast range, but something to monitor closely going forward.

AVIATION. (For the 18Z TAFS through 18Z Wednesday Afternoon) Issued at 1210 PM EST Tue Dec 10 2019

Ongoing lake effect snow showers will continue to be in KSBN vicinity to begin this TAF cycle. Large scale subsidence in the wake of mid-level disturbance combined with continued drying in low levels will have LES weakening/pivoting to the north of KSBN and also have clearing skies at both sites later this afternoon. VFR remainder of the period with gusty westerly flow diminishing to less than 10kts tonight.

IWX WATCHES/WARNINGS/ADVISORIES. IN . NONE. MI . NONE. OH . NONE. LM . Small Craft Advisory until 7 PM EST Wednesday for LMZ043-046.



SYNOPSIS . Steinwedel SHORT TERM . Steinwedel LONG TERM . Steinwedel AVIATION . JAL

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 47 mi41 min WSW 13 G 16 24°F 1023.7 hPa (+2.4)
MCYI3 - Michigan City, IN 66 mi41 min W 16 G 18 23°F 8°F
HLNM4 - 9087031 - Holland, MI 70 mi59 min W 16 G 19 23°F 37°F1020.8 hPa13°F

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Haines Memorial Airport, MI9 mi46 minW 9 G 1510.00 miLight Snow23°F14°F69%1022 hPa
Sturgis, Kirsch Municipal Airport, MI13 mi45 minW 11 G 1710.00 miPartly Cloudy22°F12°F68%1021.7 hPa
Elkhart Municipal, IN19 mi49 minW 810.00 miFair21°F10°F63%1022.7 hPa
Goshen, Goshen Municipal Airport, IN22 mi48 minWNW 710.00 miA Few Clouds20°F10°F68%1024 hPa

Link to 5 minute data for KHAI

Wind History from HAI (wind in knots)
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1 day agoS13SW13
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S7S6S5S3S4S5S5S6S6S9S8S9SW9SW9SW8SW7
G16
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2 days agoS5S5S5S6S7S7S7S7S9
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SW16SW13
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G16

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 (17,4,5,8)
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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 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.