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Marine Weather and Tides
Version 3.4 |
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 6:00AM | Sunset 7:49PM | Monday August 19, 2019 9:47 PM CDT (02:47 UTC) | Moonrise 10:00PM | Moonset 9:44AM | Illumination 80% |  |
LMZ673 Expires:201908200915;;492595 Fzus63 Kmkx 200134 Glflm Open Lake Forecast For Lake Michigan National Weather Service Milwaukee/sullivan Wi 834 Pm Cdt Mon Aug 19 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 30.0 inches will continue to track slowly east across the western great lakes tonight into Tuesday. This will result in lighter winds lingering into early Tuesday. South to southwest winds will increase across the lake on Tuesday as the high pulls away and low pressure of 29.8 inches moves over minnesota. The low will move across the lake Tuesday night dragging a cold front through the area. Gusty north winds are expected on Wednesday behind the front. Canadian high pressure of 30.2 inches will then settle over the great lakes by Thursday. Lmz080-669-671-673-675-777-779-870-872-874-876-878-200915- 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- 834 pm cdt Mon aug 19 2019 sheboygan wi to pentwater mi south...
Rest of tonight..East winds 5 to 10 kt becoming southeast. Waves 1 to 2 ft.
Tuesday..Southeast winds 10 to 15 kt increasing to 10 to 20 kt. Slight chance of showers and Thunderstorms. Waves 1 to 3 ft.
Tuesday night..South winds 10 to 15 kt veering to west 10 to 20 kt. Waves 1 to 3 ft.
Wednesday..Northwest winds 10 to 20 kt becoming north. Waves 2 to 4 ft.
Wednesday night..North winds 10 to 20 kt becoming northeast 10 to 15 kt. Waves 2 to 4 ft.
Thursday..North winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 3 ft.
Thursday night..Northeast winds 10 to 20 kt diminishing to 10 to 15 kt. Waves 2 to 4 ft.
Friday..Northeast winds 10 to 20 kt. Waves 2 to 4 ft.
Saturday..East winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 3 ft.
Synopsis.. High pressure of 30.0 inches will continue to track slowly east across the western great lakes tonight into Tuesday. This will result in lighter winds lingering into early Tuesday. South to southwest winds will increase across the lake on Tuesday as the high pulls away and low pressure of 29.8 inches moves over minnesota. The low will move across the lake Tuesday night dragging a cold front through the area. Gusty north winds are expected on Wednesday behind the front. Canadian high pressure of 30.2 inches will then settle over the great lakes by Thursday. Lmz080-669-671-673-675-777-779-870-872-874-876-878-200915- 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- 834 pm cdt Mon aug 19 2019 sheboygan wi to pentwater mi south...
Rest of tonight..East winds 5 to 10 kt becoming southeast. Waves 1 to 2 ft.
Tuesday..Southeast winds 10 to 15 kt increasing to 10 to 20 kt. Slight chance of showers and Thunderstorms. Waves 1 to 3 ft.
Tuesday night..South winds 10 to 15 kt veering to west 10 to 20 kt. Waves 1 to 3 ft.
Wednesday..Northwest winds 10 to 20 kt becoming north. Waves 2 to 4 ft.
Wednesday night..North winds 10 to 20 kt becoming northeast 10 to 15 kt. Waves 2 to 4 ft.
Thursday..North winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 3 ft.
Thursday night..Northeast winds 10 to 20 kt diminishing to 10 to 15 kt. Waves 2 to 4 ft.
Friday..Northeast winds 10 to 20 kt. Waves 2 to 4 ft.
Saturday..East winds 10 to 15 kt increasing to 10 to 20 kt. Waves 1 to 3 ft.
LMZ673
7 Day Forecast for Marine Location Near Wind Point, WI
Hourly EDIT Helplocation: 42.86, -87.09 debug
Area Discussion for - Milwaukee/Sullivan, WI
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kmkx 200152 afdmkx area forecast discussion national weather service milwaukee sullivan wi 852 pm cdt Mon aug 19 2019 Update No changes needed to the current forecast. Tonight will be quiet. The hrrr is trending a bit farther south with the convection expected to move into iowa later tonight. We could still see the northern tail of the complex clip the wi il border area Tuesday morning. But, we'll just have to see how it evolves overnight. Marine High pressure will bring light winds to lake michigan through most of Tuesday. A cold front will push through the area Tuesday night, resulting in winds shifting to the north and increasing to modest levels for Wednesday into Wednesday night. High pressure settles across the area again by Thursday, bringing a return to a rather light wind regime for the remainder of the week. Prev discussion (issued 614 pm cdt Mon aug 19 2019) update... no change to the forecast reasoning for tonight into Tuesday. The genesis region for the late night early Tue morning convection that could clip southwest wi will be over the NE sd ia intersection. That development will begin by mid to late evening. The 18z nam GFS and latest hrrr run suggest it will largely miss our forecast area to the south and west. Aviation(00z tafs)... high pressure across the area will bring light winds and partly cloudy skies for much of the night. This could lead to some fog after 06z tue, especially in the low lying areas. Any fog will clear out quickly by 13z tue. A complex of thunderstorms moving across ia later tonight could clip southwest wi as they move se. These will likely miss the southern wi TAF sites. Overall, look forVFR conditions through the TAF period. The exception will be with any fog later tonight. Prev discussion... (issued 331 pm cdt Mon aug 19 2019) short term... tonight through Tuesday night... Forecast confidence is medium. Will continue dry forecast across the far south late this afternoon and evening. More agitated cumulus farther south over northern illinois where scattered convection is developing west and southwest of chicago along main instability axis. Short term guidance in reasonable agreement on deeper moisture return and strengthening low level jet resulting in thunderstorm development in the northern plains overnight. This low level jet weakens |
Tuesday as it pivots to the east across eastern ia into northern il. NAM remains outlier with stronger low level winds briefly affecting southern wi. However both NAM and ECMWF show possible convectively induced MCV taking more northern track across the wi il border area during the morning and aftn. Hence wl continue low to mid-range chance pops spreading across southern parts of the area Tuesday morning. Small chance for convection across the area in the afternoon and again later Tuesday night as weakening cold front moves south through wisconsin. Forecast soundings show strong capping in place Tuesday afternoon so kept only schc pops going for the peak heating period. Long term... Wednesday through Friday night... Forecast confidence is high. Drier and cooler air will be building over the area for the latter half of the work week. This is due to northerly flow along with a few reinforcing shortwave trough axises rotating in from the north Wednesday and Thursday. Highs will be in the 70s with only low to mid 70s expected for Thursday and Friday. Lows overnight will be in the 50s with low 60s along the lake. Saturday through Monday... Forecast confidence is medium. The weekend will start out on the dry side with temperatures gradually warming as winds become more southerly. This wind shift will also help bring moisture to the area and eventually bring rain and thunderstorm chances back into the forecast. An upper level trough seen at 250mb and 500mb is expected to swing through for the start of next week. The exact timing of this wave is uncertain with solutions bringing in chances late Sunday night or Monday night. Expect the forecast for this period to change over the next few days as confidence increases. Aviation(21z tafs)... Patchy fog may affect parts of southern wi later tonight before thickening clouds move in from the west. Better chance for fog will be in the south where dewpoints have remained in the 60s. Still thinking morning thunderstorms may brush parts of the south Tuesday morning. Marine... Lighter winds will continue tonight into Tuesday morning. Some increase in south to southeast winds are expected later Tuesday ahead of approaching cold front. This front will move across the lake later Tuesday night into Wednesday morning. North to northwest wind gusts in its wake look to remain below 25 kts Wednesday into Thursday. Mkx watches warnings advisories Wi... None. Lm... None. Update... Davis tonight Tuesday and aviation marine... Davis Tuesday night through Monday... Rar |
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 |
| 45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI | 13 mi | 27 min | E 5.8 G 7.8 | 74°F | 75°F | 1016.4 hPa | 70°F | |
| KNSW3 - Kenosha, WI | 42 mi | 47 min | SE 1 G 1.9 | 74°F | 1015.6 hPa (-0.0) | |||
| 45029 | 43 mi | 17 min | ENE 3.9 G 3.9 | 73°F | 73°F | 1 ft | 1016.2 hPa | 69°F |
| 45161 | 45 mi | 47 min | E 1.9 G 1.9 | 72°F | 72°F | 1016.4 hPa (-0.2) | ||
| 45187 | 45 mi | 27 min | SE 1.9 G 3.9 | 78°F | 75°F | |||
| HLNM4 - 9087031 - Holland, MI | 47 mi | 53 min | N 1.9 G 1.9 | 74°F | 1016.1 hPa | 67°F | ||
| MKGM4 - Muskegon, MI | 47 mi | 37 min | E 4.1 G 4.1 | 71°F | 1016 hPa | 67°F |
Wind History for Holland, MI
(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 | -12 PM | 6 PM | 7 PM | 8 PM | 9 PM | |
| Last 24hr | NW | W | W | W | NW | NW | SW | S | SW | S | NW | N | E | S | SW | SW | SW | W | W | NW | N | N | N | |
| 1 day ago | E | SE | E | E | E | S | SE | S | SE G9 | SE | SE G9 | SE G13 | SE G14 | S G35 | S G9 | SE G13 | SE G21 | S G22 | W | SW | SW | SW | SW | W |
| 2 days ago | SE G15 | S | S G15 | S | S | S | S | S | S | S | S | S | S | SW | SW | S | S | S | NW | NW | NW | N | N | N |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Racine, Batten International Airport, WI | 39 mi | 1.9 hrs | SSE 5 | 10.00 mi | Fair | 74°F | 66°F | 79% | 1016.3 hPa |
Link to 5 minute data for KRAC
Wind History from RAC (wind in knots)
| 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 | SW | W | SW | W | NW | NW | NW | Calm | NE | NE | SE | E | SE | SE | SE | SE | S | SE | ||||||
| 1 day ago | S | S | Calm | S | S | S | S | SE | S G17 | SE | S G20 | S G31 | W | W G20 | W | SW | SW | W | W | W | W | |||
| 2 days ago | Calm | Calm | SW | SW | W | W | W | W | Calm | E | SE G18 | E | SE | SE G22 | S | SE | Calm | S | S |
Tide / Current Tables for
EDIT Weekend mode (on/off) (on/off) HelpTide / Current Tables for
EDIT (on/off) HelpWeather Map and Satellite Images
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GOES 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 Milwaukee/Sullivan, WI (22,6,7,8)
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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. |