Monday, May29, 2017 L-36.com


Marine Weather and Tides
St. Joseph, MI

Version 3.4
What's New / NOTES
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 5:16AMSunset 8:21PM Monday May 29, 2017 6:26 AM CDT (11:26 UTC) Moonrise 9:23AMMoonset 12:00AM Illumination 16% Phase: Waxing Crescent; Moon at 4 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- 253 Am Cdt Mon May 29 2017 Sheboygan Wi To Pentwater Mi South...
Today..Southwest winds 15 to 25 kt. Slight chance of showers and Thunderstorms this afternoon. Waves 1 to 3 ft building to 2 to 4 ft late.
Tonight..West winds 10 to 20 kt. Waves 2 to 4 ft.
Tuesday..Southwest winds 10 to 20 kt. Chance of showers in the afternoon. Waves 1 to 3 ft.
Tuesday night..West winds 10 to 20 kt. Waves 1 to 3 ft.
Wednesday..West winds 10 to 20 kt. Waves 1 to 3 ft.
Wednesday night..Southwest winds 10 to 20 kt. Waves 1 to 3 ft.
Thursday..Southwest winds 10 to 20 kt. Waves 2 to 4 ft.
Friday..West winds 10 to 15 kt. Chance of showers. Waves 1 to 2 ft.
LMZ878 Expires:201705291530;;385276 FZUS63 KLOT 290753 GLFLM OPEN LAKE FORECAST FOR LAKE MICHIGAN NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 253 AM CDT MON MAY 29 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...BROAD LOW PRESSURE OF 29.5 INCHES OVER WESTERN ONTARIO WILL REMAIN STATIONARY TODAY AND THEN SLOWLY DRIFT NORTH AND REACH JAMES BAY WEDNESDAY MORNING. HIGH PRESSURE OF 30.2 INCHES WILL BUILD OVER THE PLAINS TUESDAY NIGHT...SLIDE SOUTH OF THE LAKE WEDNESDAY NIGHT...AND THEN REACH THE MID ATLANTIC COAST THURSDAY AFTERNOON. A COLD FRONT WILL SHIFT SOUTH ACROSS LAKE MICHIGAN LATE FRIDAY. LMZ080-669-671-673-675-777-779-870-872-874-876-878-291530-

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 291022
afdiwx
area forecast discussion
national weather service northern indiana
622 am edt Mon may 29 2017

Synopsis
Issued at 620 am edt Mon may 29 2017
a cold front will move across the area this afternoon bringing a
slight chance of showers and thunderstorms. A weak trough rotating
around a strong stationary low pressure system over ontario will
bring a slight chance of showers to our area again Tuesday.

Temperatures will be seasonably warm again today, but,
a little cooler than normal Tuesday and Wednesday.

Short term (today through tonight)
issued at 341 am edt Mon may 29 2017
parent upr low over SRN on will continue to wrapup today as
secondary disturbance rotating through the base of this feature
drives ewd through mi. Tail end of this feature will encounter a
marginally unstable airmass by aftn over ERN areas and should
initiate isolated storms by mid aftn along residual theta-e ridge
although cams guidance rather lackluster owing to significant
boundary layer drying that has spread across the area. Otherwise
strong late may insolation will drive considerable heating mixing
into this aftn with fairly gusts wsw winds.

Skies will clear this evening behind secondary trough axis with
even drier air spreading through the area making for a cool night.

Long term (Tuesday night through Sunday)
issued at 341 am edt Mon may 29 2017
general quiet seasonably cool pattern under the influence of upr low
persisting over the james valley through thu. Thereafter high
latitude disturbance over nv will drop south across hudson bay then
amplify SE through new england next weekend allowing for an active
nw-se oriented frontal zone to develop from the NRN plains to the
lower oh valley.

Best indication for precip is on Fri as vigorous upr jet MAX shifts
through the NRN lakes within SW periphery of upr low dropping toward
new england. Low level westerly jet response and temporary ewd build
of plains theta-e ridge warrant high chance pop mention although did
back away from low end likely mention per poor consensus timing on a
more specific favored period.

Thereafter general height suppression aloft upstream of new england
upr low should result in low level baroclinic zone to shift well
south through the tn valley by sun. Torturous blended pop guidance
smatters throughout the weekend yet more likely scenario is area
finally dries out as expansive sfc ridge builds in across the lakes
and sorely needed after a very wet month of may.

Aviation (for the 12z tafs through 12z Tuesday morning)
issued at 620 am edt Mon may 29 2017
vfr conditions contg across the area early this morning. Patchy alto-cu
in cyclonic flow should give way to high based CU this aftn. Cdfnt
over wi expected to drop SE across NRN in this aftn with a few shra ts
developing along it. Better chances for impacts from convection again
today look to be at fwa where FROPA will come later in the aftn.

Deep mixing and unidirectional flow will allow for wind gusts near
25kt, likely stronger in near and shra ts. Winds will diminish with loss
of heating this eve with some patchy alto CU likely persisting
overnight.

Iwx watches warnings advisories
In... None.

Mi... None.

Oh... None.

Lm... None.

Synopsis... Jt
short term... T
long term... T
aviation... Jt
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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 mi36 min WSW 9.7 G 12 52°F 47°F1 ft1007.5 hPa (-0.0)48°F
45168 32 mi26 min SSW 9.7 G 12 59°F 57°F1 ft1008.2 hPa (+0.7)52°F
SVNM4 - South Haven, MI 34 mi26 min S 11 G 11 59°F
45026 - St. Joseph, MI 36 mi26 min SW 7.8 G 9.7 61°F 59°F1 ft1008.6 hPa (+0.6)53°F
HLNM4 - 9087031 - Holland, MI 44 mi38 min S 8.9 G 11 59°F
45174 44 mi26 min SW 7.8 G 9.7 58°F 55°F1 ft52°F
WHRI2 - Waukegan Harbor, IL 47 mi46 min WSW 8.9 G 11 60°F
45029 47 mi26 min WSW 9.7 G 12 57°F 55°F2 ft1007.3 hPa (+0.2)49°F
KNSW3 - Kenosha, WI 48 mi26 min WSW 8.9 G 12 61°F 1007.8 hPa (+0.7)
45170 48 mi26 min SW 9.7 G 12 61°F 56°F1 ft53°F
CHII2 - Chicago, IL 50 mi36 min W 18 G 19 66°F 50°F

Wind History for Holland, MI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Benton Harbor, Southwest Michigan Regional Airport, MI34 mi33 minESE 310.00 miFair52°F48°F89%1008.2 hPa

Wind History from BEH (wind in knots)
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Last 24hrE4SE5SE63NW546N6NW6W564W4W3SW3CalmCalmCalmW7CalmCalmCalmCalmE3
1 day agoCalmNW3NW3CalmCalm4SE5NW66NW75NW33CalmCalmCalmCalmCalmCalmE3CalmCalmE3SE4
2 days agoW4CalmSW3W5SW5Calm434N5NE3N3NE6CalmCalmE3E3E4CalmCalmCalmCalmCalmCalm

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 (7,2,3,4)
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Ground Weather Radar Station Grand Rapids/Muskegon, MI
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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.