Monday, November30, 2020
Privacy Policy
L-36.com

Marine Weather and Tides
Grand Beach, MI

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 6:53AMSunset 4:19PM Monday November 30, 2020 10:46 PM CST (04:46 UTC) Moonrise 5:38PMMoonset 8:05AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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
    EDIT      (on/off)   Help
LMZ080 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- 835 Pm Cst Mon Nov 30 2020 Sheboygan Wi To Pentwater Mi South...
.gale warning in effect until midnight cst tonight...
Rest of tonight..North gales to 35 kt diminishing to 30 kt. Chance of rain and snow showers. Waves 12 to 16 ft occasionally to 21 ft.
Tuesday..North winds to 30 kt becoming northwest. Slight chance of rain showers in the morning. Waves 8 to 11 ft occasionally to 14 ft.
Tuesday night..Northwest winds to 30 kt diminishing to 10 to 20 kt. Waves 7 to 10 ft occasionally to 13 ft subsiding to 6 to 9 ft occasionally to 12 ft.
Wednesday..Northwest winds 10 to 20 kt. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft.
Wednesday night..West winds 10 to 15 kt. Waves 1 to 3 ft.
Thursday..West winds 10 to 15 kt. Waves 1 to 2 ft.
Thursday night..West winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 3 ft.
Friday..West winds 10 to 20 kt. Waves 1 to 3 ft.
Saturday..West winds 10 to 15 kt. Waves 1 to 3 ft.
LMZ080 Expires:202012011030;;652842 FZUS63 KMKX 010235 GLFLM OPEN LAKE FORECAST for Lake Michigan National Weather Service Milwaukee/Sullivan WI 835 PM CST Mon Nov 30 2020 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 29.3 inches over Upstate New York will remain nearly stationary into tomorrow morning, before slowly lifting into central Quebec by Wednesday. Meanwhile, a weak ridge of high pressure averaging 30.3 inches will remain in place over the upper Mississippi River Valley. Gusty north to northwest winds are slowly diminishing, and are expected to fall below gale force late tonight, though frequent gusts to around 30 knots will remain possible through Tuesday night, especially over the northern third of the lake. Winds will become more westerly across the lake on Wednesday and Wednesday night, with westerly flow continuing through at least Friday. While winds will remain gusty, additional periods of gales do not appear likely at this time. && LMZ080-669-671-673-675-777-779-870-872-874-876-878-011030-


7 Day Forecast for Marine Location Near Grand Beach, MI
   Hourly   EDIT   Help
location: 42.03, -87     debug


Area Discussion for - Northern Indiana, IN
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS63 KIWX 302350 AFDIWX

Area Forecast Discussion National Weather Service Northern Indiana 650 PM EST Mon Nov 30 2020

SYNOPSIS. Issued at 650 PM EST Mon Nov 30 2020

System snow will continue to slowly pivot out of eastern Indiana this evening . lingering over northwest Ohio for at least part of tonight. Meanwhile, lake effect snow will continue to create dangerous travel conditions in northwest Indiana and far southwest Michigan. Some blowing and drifting of snow is possible tonight into Tuesday mainly where the lake effect snow has fallen.

SHORT TERM. (This Evening through Tuesday) Issued at 319 PM EST Mon Nov 30 2020

Overall, the Lake Effect and "system snow" have gone to plan to thus far . with perhaps notably less snow (0.1" at the office) in the central part of the CWA than originally expected; but we knew the central CWA would be tricky to message. As of this writing, only a handful of snowfall reports have been received. This ranges from 2- 3" in northern Starke County and in La Porte, and 0.5" in Ottawa, OH. We have also seen photos of snow-covered roads in NW Indiana thanks to INDOT. LaPorte AWOS has reported several instances of 1/2 mile visibility, indicative of the intensity we anticipated out of this band. The Lima, OH ASOS has also reported 1/2 mile visibility.

Snow associated with the low moving over the eastern Great Lakes will exit eastern Indiana in the +/-7 PM EST window. Thereafter, snow is expected to decrease in intensity over NW Ohio, but perhaps linger into at least part of the overnight hours. High resolution models are starting to suggest there can be a period of snow returned to areas as far northwest as Hillsdale (MI) and Williams (OH) counties. This is something the ECMWF advertised yesterday, and continues to today.

Through Tuesday, an additional 3-6" is possible in the Lake Effect Snow area. This is in line with this morning's 6-8" total forecast. Of course, with LES, locally higher amounts possible. Toward NW Ohio, an additional trace to 3" (Lima on closer to 2-3") is possible. The lake effect snow band will be pretty transient late tonight and through tomorrow. The concern will be for rapidly changing visibility over small distances, including toward the central CWA as the band becomes NW to SE oriented. Headlines will remain unchanged at this time. Far NW OH will need to be monitored as conditions might improve there, but figured it would be best to keep things steady through at least the evening drive time. Plus, snow is ongoing there.

LONG TERM. (Tuesday Night through Monday) Issued at 319 PM EST Mon Nov 30 2020

Dry conditions are expected by Tuesday night as the upper-level low responsible for the recent bout of winter weather moves Northeast. Then, a towering ridge at 500mb takes shape over the western US. This creates an omega block from the central Pacific to the central US. (High over low, Rex block could be argued later on). A low in the Lee of the Rockies may get strung out east-west through the remainder of the week. This could bring a glancing blow of some precipitation depending on its location. Alternatively, this low will block our moisture source (the Gulf) and we could be facing an extended period of largely dry conditions. The best opportunity to break up this pattern might be a strong low dropping in from the Northwest Territories over the top of this pattern by the latter part of the weekend. Overall, the long term is a bit uncertain, but looking stagnant with drier then normal conditions favored and near- normal temperatures.

AVIATION. (For the 00Z TAFS through 00Z Tuesday Evening) Issued at 650 PM EST Mon Nov 30 2020

Expect VFR to MVFR conditions at the TAF sites. Lake effect snow will continue through tomorrow morning at KSBN, with a band currently over the terminal/slightly west of the terminal. The band will diminish and take on a more NW-SE orientation through the overnight hours as winds become more west-northwest. We could see a brief dip to IFR conditions in heavier cells within the band, but expect mostly MVFR conditions. At KFWA, system snow will continue for the next couple of hours as the low shifts ENE. There is potential for the lake effect band (eventually NW to SE orientation) to lift northeastward enough Tuesday morning to impact the terminal. Have a prob30 group to account for this from 10-14z, but confidence is not very high at this point. High pressure building in will give way to clearing skies/VFR conditions by Tuesday afternoon and evening, with W-NW wind gusts to 20-25kts or so.

IWX WATCHES/WARNINGS/ADVISORIES. IN . Winter Storm Warning until 8 AM CST Tuesday for INZ003-012.

Lakeshore Flood Warning until 4 PM CST Tuesday for INZ003.

Winter Weather Advisory until 9 AM EST Tuesday for INZ004-014.

MI . Winter Storm Warning until 9 AM EST Tuesday for MIZ077.

Lakeshore Flood Warning until 5 PM EST Tuesday for MIZ077.

OH . Winter Weather Advisory until 7 AM EST Tuesday for OHZ001-002- 004-005-015-016-024-025.

LM . Gale Warning until 1 AM EST Tuesday for LMZ043-046.



SYNOPSIS . Brown SHORT TERM . Brown LONG TERM . Brown AVIATION . MCD

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
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MCYI3 - Michigan City, IN 21 mi47 min NNW 30 G 32 35°F 28°F
SJOM4 - St. Joseph, MI 27 mi107 min N 23 G 30 37°F 1013.2 hPa (-0.0)
BHRI3 - Burns Harbor, IN 28 mi67 min NNW 13 G 18 33°F 1014.6 hPa
CHII2 - Chicago, IL 31 mi47 min WNW 23 G 25 30°F 22°F
CNII2 34 mi32 min WNW 14 G 18 30°F 19°F
OKSI2 34 mi107 min NNW 2.9 G 8 31°F
CMTI2 - 9087044 - Calumet, IL 35 mi53 min W 8 G 16 29°F 1014.7 hPa19°F
FSTI2 35 mi107 min 29°F
45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI 45 mi37 min NNW 23 G 29 36°F 44°F1014.5 hPa31°F
SVNM4 - South Haven, MI 46 mi47 min 28 G 32 35°F
WHRI2 - Waukegan Harbor, IL 49 mi107 min NW 16 G 22 28°F

Wind History for Calumet Harbor, IL
(wind in knots)    EDIT      (on/off)   Help
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
Last
24hr
NW14
G21
NW15
G19
NW13
G19
NW16
G24
NW13
G21
NW16
G27
N21
G28
NW19
G28
N19
G26
NW19
G27
NW17
G26
NW15
G22
NW11
G17
NW13
G21
NW12
G18
NW15
G21
NW12
G23
NW11
G23
NW14
G19
NW11
G17
NW11
G21
NW8
G20
W10
G17
W14
G21
1 day
ago
S9
G12
S7
G12
S8
G12
S9
G12
S7
G10
S7
G10
SW8
G12
SW9
G12
SW9
S10
SW11
G15
SW8
G13
SW10
SW7
G13
SW7
G14
S7
G13
SW7
G11
SW4
G9
W4
G11
W4
G8
NW7
G11
NW17
G26
NW11
G21
NW13
G17
2 days
ago
W4
G7
W4
W3
W3
SW3
SW3
SW3
SW3
SW5
G9
S5
SW5
SW9
G12
S11
G14
SW10
G15
SW8
G14
S9
G20
S13
G18
S12
G15
S10
G14
S13
G17
S11
G18
S13
G17
SW12
G19
S12
G16

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Michigan City Municipal Airport, IN25 mi2.9 hrsN 18 G 2710.00 miLight Rain and Breezy34°F26°F75%1013.5 hPa

Link to 5 minute data for KMGC

Wind History from MGC (wind in knots)
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
Last 24hrN13
G19
N12
G22
N14
G22
N13
G25
N16
G26
N17
G30
N15
G22
N16
G29
N17
G25
N16
G30
N21
G31
N17
G27
N12
G29
N15
G25
NW21
G31
NW18
G33
N16
G26
N18
G31
N18
G30
N20
G28
N13
G22
----N16
G24
1 day agoS8S5S5S7S7S7S8S8S7S11
G14
SW9
G14
SW8SW11S8SW10SW10
G14
SW8W4NW7N7N15
G19
N13
G22
N15
G22
N12
G20
2 days agoNW6NW5NW5CalmCalmCalmS3CalmSW4SW7SW5SW8SW7SW8SW9S8S8S9SW12
G15
S11
G16
S11S10
G16
S9S7

Tide / Current Tables for
   EDIT   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map
       (on/off)   Help Weather Map
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
Ground Weather Radar Station Northern Indiana, IN
   (on/off)   Help
weather_mapweather_map weather_map


Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. Google supplies the ads on this site. Because I do not track who you are, I cannot customize how these ads are served. They may be personalized to improve the ad experience. If you do not want personalized ads, please adjust the settings on the Google site HERE. NOTE: The best I can determine, this site is not subject to CCPA but I am doing my best to comply anyway.
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 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.