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Marine Weather and Tides
Version 3.4 |
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 5:28AM | Sunset 8:25PM | Tuesday July 23, 2019 9:06 AM CDT (14:06 UTC) | Moonrise 11:57PM | Moonset 11:53AM | Illumination 60% |  |
LMZ669 Expires:201907232115;;509899 Fzus63 Kmkx 231355 Glflm Open Lake Forecast For Lake Michigan National Weather Service Milwaukee/sullivan Wi 855 Am Cdt Tue Jul 23 2019 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.. High pressure of 30.3 inches will slowly move from the northern great plains into illinois by late Wednesday. Light north to northwest winds will prevail during this time. The high pressure area will then move across the ohio river valley into the mid atlantic states for Wednesday night through Friday. Meanwhile, low pressure of 29.5 inches will move east across southern canada. Light to modest southwesterly winds will develop for Wednesday afternoon and Thursday and become breezy for Friday and Saturday. Lmz080-669-671-673-675-777-779-870-872-874-876-878-232115- 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- 855 am cdt Tue jul 23 2019 sheboygan wi to pentwater mi south...
Rest of today..Northwest winds 10 to 15 kt becoming north 10 to 20 kt. Waves 2 to 4 ft.
Tonight..North winds 10 to 20 kt becoming northwest 5 to 10 kt. Waves 2 to 4 ft.
Wednesday..North winds 5 to 10 kt backing to southwest. Waves 1 to 2 ft.
Wednesday night..Southwest winds 5 to 10 kt. Waves 1 to 2 ft.
Thursday..Southwest winds 5 to 10 kt becoming south 10 to 20 kt in the afternoon. Waves 1 to 3 ft.
Thursday night..South winds 10 to 15 kt becoming southwest 10 to 20 kt. Waves 1 to 3 ft.
Friday..Southwest winds 10 to 20 kt becoming south to 30 kt. Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
Saturday..Southwest winds 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft.
Synopsis.. High pressure of 30.3 inches will slowly move from the northern great plains into illinois by late Wednesday. Light north to northwest winds will prevail during this time. The high pressure area will then move across the ohio river valley into the mid atlantic states for Wednesday night through Friday. Meanwhile, low pressure of 29.5 inches will move east across southern canada. Light to modest southwesterly winds will develop for Wednesday afternoon and Thursday and become breezy for Friday and Saturday. Lmz080-669-671-673-675-777-779-870-872-874-876-878-232115- 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- 855 am cdt Tue jul 23 2019 sheboygan wi to pentwater mi south...
Rest of today..Northwest winds 10 to 15 kt becoming north 10 to 20 kt. Waves 2 to 4 ft.
Tonight..North winds 10 to 20 kt becoming northwest 5 to 10 kt. Waves 2 to 4 ft.
Wednesday..North winds 5 to 10 kt backing to southwest. Waves 1 to 2 ft.
Wednesday night..Southwest winds 5 to 10 kt. Waves 1 to 2 ft.
Thursday..Southwest winds 5 to 10 kt becoming south 10 to 20 kt in the afternoon. Waves 1 to 3 ft.
Thursday night..South winds 10 to 15 kt becoming southwest 10 to 20 kt. Waves 1 to 3 ft.
Friday..Southwest winds 10 to 20 kt becoming south to 30 kt. Waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.
Saturday..Southwest winds 15 to 25 kt. Waves 4 to 6 ft occasionally to 8 ft.
LMZ669
7 Day Forecast for Marine Location Near Sheboygan, WI
Hourly EDIT Helplocation: 43.71, -87.19 debug
Area Discussion for - Milwaukee/Sullivan, WI
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kmkx 231008 afdmkx area forecast discussion national weather service milwaukee sullivan wi 508 am cdt Tue jul 23 2019 Update No change to forecast at this time. Pc Aviation(12z tafs) Mid level wave shifts southeast of the area this morning. Surface high pressure remains to our west keeping a northerly flow in place. Winds will turn onshore this afternoon. Lingering mid level cyclonic flow and lake breeze convergence may be enough to set off some isolated shra tsra this afternoon early evening. Afternoon CU and any CB bases will be atVFR levels with a diminishing trend in the evening. Pc Prev discussion (issued 214 am cdt Tue jul 23 2019) short term... today and tonight - confidence... Medium mid level wave shifts to our southeast this morning. However the 500 millibar flow does remain northerly and slightly cyclonic throughout the day. A weak ripple is possible. Colder 500 millibar temperatures will linger in this regime with values in the negative teens celsius. Model soundings show skinny CAPE with values around 500-800 j kg likely. Lots of dry air noted in the soundings as well. There will be some surface convergence evolving as lake breeze circulation evolves this afternoon. Will stick with the small pops to account for some isolated development. Any activity that pops up will diminish in the evening with skies becoming mainly clear. Wednesday into Thursday - confidence... Medium main question for Wednesday afternoon is with whether there will be a few showers storms that pop up. The 23.00z GFS is a high end outlier for how widespread it creates precipitation in the afternoon due to it having a much more moist profile, particularly in the 700-400mb level. The 23.00z NAM is on the other end of the spectrum and has much drier mid level air in place. Still, profiles show a skinny uncapped CAPE profile with a weak surface trough moving through which could pop off a few showers storms. |
Added a slight chance of precipitation in the afternoon for Wednesday. Ridge moves east going into Thursday and shifts the low-level flow around from being north-northwesterly to south-southerly which will start to advect some warmer air into the region. Long term... Friday into Monday - confidence... Medium southerly southwesterly low level flow will remain in place through the weekend and help to push temperatures back up into the mid upper 80s over this period. The better low level moisture transport focus is toward the u.P of michigan going through sat sun, so think that the focus for convection will be up in that area. Better chance for some rain showers storms appears to be on Sunday night into Monday as the cold front drags through the region. Aviation(09z tafs)... Mid level wave shifts southeast of the area this evening. Surface high pressure remains to our west keeping a northerly flow in place. Winds will turn onshore this afternoon. Lingering mid level cyclonic flow and lake breeze convergence may be enough to set off some isolated shra tsra this afternoon early evening. Afternoon CU and any CB bases will be atVFR levels with a diminishing trend in the evening. Marine... High pressure will slowly move from the northern great plains into illinois by late Wednesday. Light north to northwest winds will prevail during this time. The high pressure area will then move across the ohio river valley into the mid atlantic states for Wednesday night through Friday. Meanwhile, low pressure will move east across southern canada. Light to modest southwest winds will develop for Wednesday afternoon and Thursday and become breezy for Friday and Saturday. Mkx watches warnings advisories Wi... None. Lm... None. Today tonight and aviation marine... Collar Wednesday through Monday... Halbach |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| SGNW3 - Sheboygan, WI | 27 mi | 66 min | NW 11 G 13 | 65°F | 1019.1 hPa (+1.1) | 57°F | ||
| 45024 | 38 mi | 26 min | WNW 12 G 14 | 66°F | 64°F | 1 ft | 1019 hPa | 61°F |
| BSBM4 - Big Sable Point, MI | 43 mi | 26 min | N 9.9 G 13 | 68°F | 1019.6 hPa | |||
| LDTM4 - 9087023 - Ludington, MI | 43 mi | 54 min | W 2.9 G 5.1 | 67°F | 60°F |
Wind History for Ludington, MI
(wind in knots) EDIT (on/off) Help| 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | 3 PM | 4 PM | -12 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | |
| Last 24hr | N G11 | N G16 | N G13 | NW G14 | NW G14 | N G16 | NW G14 | N G9 | NW G8 | W | W | -- | W | N | NE | NE | E | E | NE | NE | -- | W G7 | W G7 | |
| 1 day ago | NE | N G9 | W | NW G11 | N G13 | NW G9 | NW G8 | N G10 | N G10 | N G12 | N G10 | N G10 | NE G8 | NE | NE G8 | NE G8 | NE G9 | NE G7 | NE | NE G8 | NE | NW | N G8 | N G15 |
| 2 days ago | SE | SE G8 | E | E G15 | SE G13 | E G13 | SE G12 | SE G14 | SW G11 | S | W G14 | NW | N G8 | NW G5 | W | NW | NE | NE G6 | E | -- | NE | NE | E | E |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Sheboygan County Memorial Airport, WI | 35 mi | 73 min | NNW 8 | 10.00 mi | Mostly Cloudy | 65°F | 57°F | 78% | 1019.3 hPa |
Wind History from SBM (wind in knots)
| 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 | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | |
| Last 24hr | N | N G15 | N G18 | N G17 | N G19 | N | NE | NW | W | SW | W | NW | N | N | NW | Calm | W | W | W | NW | NW | N | ||
| 1 day ago | NE | NE | N | N | N | N G16 | E | NE | E | NE | N | NE | NE | NE | NE | NE | N | N | N | N | N | N | N | N |
| 2 days ago | SW | SW G21 | SW | N G27 | E | NE | E | E | W | NW | NW | N | N | N | Calm | N | N | Calm | NW | Calm | Calm | Calm | NE | N |
Tide / Current Tables for
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GOES Local Image of GreatLakes 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 Milwaukee/Sullivan, WI (10,2,3,4)
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Ground Weather Radar Station Green Bay, WI
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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. |