Monday, September25, 2017 L-36.com


Marine Weather and Tides
St. Joseph, MI

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 6:41AMSunset 6:43PM Monday September 25, 2017 5:29 PM CDT (22:29 UTC) Moonrise 11:54AMMoonset 10:03PM Illumination 27% Phase: Waxing Crescent; Moon at 5 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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LMZ878 Lake Michigan From Michigan City In To St. Joseph Mi 5 Nm Offshore To Mid Lake- Lake Michigan From Sheboygan To Port Washington Wi 5 Nm Offshore To Mid Lake- Lake Michigan From Port Washington To North Point Light Wi 5 Nm Offshore To Mid Lake- Lake Michigan From North Point Light To Wind Point Wi 5 Nm Offshore To Mid Lake- Lake Michigan From Wind Point Wi To Winthrop Harbor Il 5 Nm Offshore To Mid Lake- Lake Michigan From Winthrop Harbor To Wilmette Harbor Il 5 Nm Offshore To Mid Lake- Lake Michigan From Wilmette Harbor Il To Michigan City In 5 Nm Offshore To Mid Lake- Lake Michigan From Whitehall To Pentwater Mi 5 Nm Offshore To Mid Lake- Lake Michigan From Grand Haven To Whitehall Mi 5 Nm Offshore To Mid Lake- Lake Michigan From Holland To Grand Haven Mi 5 Nm Offshore To Mid Lake- Lake Michigan From South Haven To Holland Mi 5 Nm Offshore To Mid Lake- Lake Michigan From St. Joseph To South Haven Mi 5 Nm Offshore To Mid Lake- 249 Pm Cdt Mon Sep 25 2017 Sheboygan Wi To Pentwater Mi South...
Tonight..Southeast winds 10 to 15 kt becoming south. Waves 1 to 2 ft.
Tuesday..South winds 10 to 15 kt increasing to 10 to 20 kt becoming southwest late. Slight chance of showers and Thunderstorms in the afternoon. Waves 1 to 3 ft.
Tuesday night..West winds 10 to 20 kt becoming northwest 15 to 25 kt. Waves 1 to 2 ft building to 4 to 6 ft occasionally to 8 ft.
Wednesday..Northwest winds 15 to 25 kt becoming north. Waves 4 to 6 ft occasionally to 8 ft.
Wednesday night..North winds 10 to 20 kt. Waves 3 to 5 ft.
Thursday..Northwest winds 10 to 15 kt becoming west 10 to 20 kt. Waves 2 to 4 ft.
Thursday night..West winds 15 to 25 kt becoming northwest to 30 kt. Waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft.
Friday..Northwest winds to 30 kt becoming north. Waves 7 to 10 ft occasionally to 13 ft.
Saturday..Northeast winds 10 to 20 kt diminishing to 5 to 10 kt in the afternoon. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.
LMZ878 Expires:201709260330;;922688 FZUS63 KLOT 251949 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Chicago/Romeoville IL 249 PM CDT Mon Sep 25 2017 FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON Lake Michigan. Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the wave, along with the average height of the highest 10% of the waves which will occasionally be encountered. .SYNOPSIS...Low pressure of 29.8 inches over eastern Iowa will move to Lake Superior on Tuesday...trailing a cold front across the lake late Tuesday afternoon and evening. The low will then deepen to 29.6 inches as it pulls away into western Quebec by early Wednesday. High pressure of 30.2 inches will spread slowly east from the Plains Wednesday...with weaker ridging of 30.1 inches extending across southern Lake Michigan by early Thursday. Low pressure of 29.9 inches will pass just northeast of the Lakes by early Friday...with another cold front pushing across the lake. High pressure of 30.4 inches will build across the western Lakes Saturday. LMZ080-669-671-673-675-777-779-870-872-874-876-878-260330-

7 Day Forecast for Marine Location Near St. Joseph, MI
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location: 42.45, -86.93     debug


Area Discussion for - Northern Indiana, IN
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Fxus63 kiwx 251756
afdiwx
area forecast discussion
national weather service northern indiana
155 pm edt Mon sep 25 2017

Synopsis
Issued at 155 pm edt Mon sep 25 2017
unseasonably warm weather will continue through Tuesday with high
temperatures from the upper 80s to around 90. A notably cooler air
mass will then build into the region thereafter for the latter half
of the week and next weekend with highs generally 65 to 70.

Short term (tonight and Tuesday)
issued at 155 pm edt Mon sep 25 2017
staunch ridging sfc and aloft to finally breakdown on Tue ahead of
ejecting WRN trough up across the upper midwest. Low level thermal
trough while somewhat subdued will provide for another unseasonably
warm day with upper 80s to 90 expected.

Long term (Wednesday through Sunday)
issued at 155 pm edt Mon sep 25 2017
no change from prior thinking this period. Lead SW disturbance
tracking into the james bay vicinity valry Wed as trailing cold
frontal zone washes out across the oh valley. Secondary SW follows
fri with more substantive low level cold advection burst which
persists into Sat before moderating. Exchange in airmass will be
most welcome through given recent heat wave with dys 5-6 temp
anomalies dropping about a cat below normal.

Aviation (for the 18z tafs through 18z Tuesday afternoon)
issued at 112 pm edt Mon sep 25 2017
little more than some passing cirrus will be noted for both
airports, resulting inVFR conditions through the period.

Iwx watches warnings advisories
In... None.

Mi... None.

Oh... None.

Lm... None.

Synopsis... T murphy
short term... T
long term... T
aviation... Fisher
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI 16 mi40 min SE 5.8 G 5.8 74°F 71°F1 ft1013.8 hPa (-1.5)
45168 32 mi20 min N 1.9 G 3.9 77°F 75°F1014 hPa67°F
SJOM4 - St. Joseph, MI 34 mi30 min N 1 G 1.9 83°F 1014.6 hPa (-2.0)
SVNM4 - South Haven, MI 34 mi30 min NNE 2.9 G 2.9 81°F
45026 - St. Joseph, MI 36 mi20 min ENE 3.9 G 3.9 79°F 74°F1013.8 hPa69°F
HLNM4 - 9087031 - Holland, MI 44 mi42 min Calm G 1 77°F 1013.9 hPa
45174 44 mi20 min ESE 9.7 G 9.7 76°F 72°F1 ft70°F
WHRI2 - Waukegan Harbor, IL 47 mi50 min SSW 5.1 G 6 78°F
45029 47 mi20 min SE 1.9 G 3.9 75°F 71°F1 ft1013.8 hPa65°F
45170 48 mi20 min ENE 5.8 G 5.8 78°F 74°F69°F
KNSW3 - Kenosha, WI 48 mi30 min SSE 8.9 G 12 76°F 1013.2 hPa (-1.0)
CHII2 - Chicago, IL 50 mi40 min ESE 16 G 16 81°F 63°F

Wind History for Holland, MI
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Southwest Michigan Regional Airport, MI34 mi37 minSE 310.00 miFair87°F55°F34%1013.8 hPa

Wind History from BEH (wind in knots)
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Last 24hrSE5CalmE3E3E3CalmCalmE4SE5SE5SE6SE5SE3CalmSE3S5S4S5SE4CalmCalmSE8S7SE3
1 day agoCalmCalmCalmE3SE5SE3E3CalmE4E5E4E5SE3E4SE5SE4SE4SE7S8SE7SE7S7
G16
SE10SE6
2 days agoCalmCalmE3E3CalmCalmE4E3SE3SE3SE5SE4E3CalmCalmCalmCalmS3SE4E4NW6NW6N4NW3

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 GreatLakes    EDIT
Geos

Wind Forecast for Northern Indiana, IN (18,4,5,8)
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Ground Weather Radar Station Grand Rapids/Muskegon, MI
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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.