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Marine Weather and Tides
Version 3.4 |
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 7:15AM | Sunset 5:55PM | Tuesday October 24, 2017 6:17 AM CDT (11:17 UTC) | Moonrise 11:39AM | Moonset 9:25PM | Illumination 19% |  |
Marine Forecasts
EDIT (on/off) Help| LMZ646 Wind Point Wi To Winthrop Harbor Il- 505 Am Cdt Tue Oct 24 2017 .small craft advisory in effect until 9 am cdt this morning... .gale warning in effect from 9 am cdt this morning through late tonight... Today..Northwest wind 15 to 20 knots with gusts to around 25 knots becoming 15 to 25 knots with gusts to around 35 knots late in the morning, then becoming northwest 15 to 25 knots with gusts to around 35 knots in the afternoon. Rain until late afternoon, then chance of rain late in the afternoon. Waves 3 to 4 feet. Tonight..Northwest wind up to 30 knots with gusts to around 35 knots easing to 15 to 25 knots with gusts to around 30 knots late in the evening, then becoming northwest 15 to 25 knots with gusts to around 30 knots after midnight backing west 15 to 20 knots with gusts to around 25 knots early in the morning. Chance of rain through around midnight. Waves 3 to 4 feet. Wednesday..West wind 10 to 15 knots with gusts to around 20 knots becoming northwest 5 to 10 knots in the afternoon. Chance of showers in the morning. Waves 1 to 2 feet. Wednesday night..North wind 5 to 10 knots becoming northwest late in the evening, then backing west after midnight becoming southwest early in the morning. Partly cloudy. Waves around 1 foot. | LMZ646 Expires:201710241600;;333114 FZUS53 KMKX 241006 NSHMKX Nearshore Marine Forecast National Weather Service MILWAUKEE/SULLIVAN WI 505 AM CDT Tue Oct 24 2017 For waters within five nautical miles of shore on Lake Michigan LMZ646-241600- |
7 Day Forecast for Marine Location Near Kenosha, WI
Hourly EDIT Helplocation: 42.58, -87.87 debug
Area Discussion for - Milwaukee/Sullivan, WI
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kmkx 240818 afdmkx area forecast discussion national weather service milwaukee sullivan wi 318 am cdt Tue oct 24 2017 Discussion Today and tonight... Forecast confidence is high: rain on the back side of strong low pressure will continue into this morning. The rain will wind down northwest to southeast mid- morning into the afternoon as drier and colder air advects into the area. Clouds will hang on through the day today, but are then expected to clear out quickly west to east during the evening hours. Highest wind gust potential today is a bit tricky given limited mixing early due to clouds and precip, but increased mixing later as colder air advects in. Gusts look borderline for a wind advisory, but close enough to leave the advisory as is. Clouds will move back in from the northwest later tonight as a quick moving shortwave approaches. Models show a little precip with this waves as well. It will take a little while for the low levels to saturate before any precip has a chance to make it to the ground. Soundings do look saturated enough by the early morning hours for some low precip chances. Left rain snow mention going, with temps in the lowest 1-2 kft right on the border of rain or snow. Wednesday - confidence... Medium potent 200-300 millibar jet streak will put southern wi right in the vicinity of the left front quad. Impressive 500 millibar wave rides through as well during the morning hours. Bufkit soundings are showing the GFS drier within the column with window of low level saturation brief if at all. Meanwhile the NAM saturates the column for a longer period in the morning though still a close call on precip type with wet bulb considerations. Will have both rain and snow in the grids. QPF amounts are on the low side. Not expecting any snow accumulation with ground still warm. This should all exit for the afternoon hours with low level rh lingering longer than the 700 rh so clouds may be stubborn for a time in the afternoon. Thursday - confidence... Medium surface ridge shifts to the east and sets up a milder return flow with precip associated with next low remaining to our north or northwest. Some disagreement amongst the models on how warm 925 temps will rebound to. The GFS is the warmest with readings pushing 11c while the NAM and ECMWF keep readings more in the middle single digit range celsius. Will lean towards the gfs mos superblend guidance at this time. Thursday night through Sunday - confidence... Low to medium |
another mid level trough will carve out across the upper midwest and linger this period. The GFS is actually the slowest suggesting the influence of the circulation could linger into Sunday while the ECMWF is a bit more progressive. Initial precip on Thursday night shows a MAX across northern or central wi from the GFS gem and ECMWF while the NAM shows more across southern wi. This initial batch looks warm enough to remain all liquid. Colder air is proggd to wrap in for the weekend as the low heads to the northeast so potential of a mix returns. QPF amounts not all that impressive. Monday - confidence... Medium mid level ridging finally works in and there is consensus between the GFS and ECMWF to go with the dry look of the superblend pops. Aviation(09z tafs) Rain will persist into this morning across the area, winding down northwest to southeast mid-morning into the afternoon. Most places will have MVFR ceilings today, though some ifr spots possible this morning. Also, seeing a location or two that are slow for ceilings to lower at the moment, but expecting these holdouts to drop to MVFR in the next couple hours. Northwest winds are still expected to be quite gusty today. Clouds will clear out west to east this evening. More clouds are expected to move in from the northwest later tonight into Wednesday morning as a quick moving wave approaches. Some light precip is likely with this wave, with a period of snow or rain snow mix possible. No accumulations are expected given mild ground temps and borderline air temps for snow. Marine Gale force northwest winds are likely today on the back side of strong low pressure. The strong winds will slowly wind down during the evening and early nighttime hours. Highest waves will be toward open waters due to the offshore nature of the winds. Left the current marine small craft advisory and gale warning timing as is. Winds could hit advisory levels again Thursday night into Friday as low pressure moves through the area. Mkx watches warnings advisories Wi... Wind advisory from 7 am this morning to 7 pm cdt this evening for wiz046-047-051-052-056>060-062>072. Lm... Small craft advisory from 6 am to 9 am cdt this morning for lmz643>646. Gale warning from 9 am this morning to 4 am cdt Wednesday for lmz643>646. Today tonight and aviation marine... Ddv Wednesday through Monday... Collar |
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 |
| KNSW3 - Kenosha, WI | 3 mi | 77 min | W 9.9 G 12 | 48°F | 998.3 hPa (-1.4) | |||
| WHRI2 - Waukegan Harbor, IL | 15 mi | 37 min | W 9.9 G 15 | 48°F | ||||
| MLWW3 - Milwaukee, WI | 32 mi | 27 min | NNW 5.1 G 7 | 50°F | ||||
| 45174 | 33 mi | 27 min | W 16 G 21 | 49°F | 56°F | 2 ft | 47°F | |
| FSTI2 | 43 mi | 137 min | WSW 12 | 47°F | ||||
| 45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI | 45 mi | 87 min | NW 14 G 14 | 52°F | 60°F | 3 ft | 997.4 hPa (-1.3) | |
| OKSI2 | 48 mi | 137 min | W 2.9 | 49°F | ||||
| CHII2 - Chicago, IL | 49 mi | 27 min | W 17 G 20 | 49°F | 46°F |
Wind History for Calumet Harbor, IL
(wind in knots) EDIT (on/off) Help| 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 | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | |
| Last 24hr | NW G22 | NW G22 | N G17 | N G17 | N G16 | N G15 | N G15 | N G15 | NW G9 | W G5 | W | W G6 | W | SW G6 | S | SW | SW G9 | SW G12 | SW G13 | SW G11 | SW G8 | SW G10 | SW G11 | SW G12 |
| 1 day ago | S G16 | S G17 | S G19 | S G18 | S G21 | S G16 | S G18 | S G20 | S G15 | S G22 | NW G17 | NW G20 | NW G15 | N G17 | N G17 | N G14 | N G13 | N G13 | N G13 | N G13 | N G14 | NW G14 | NW G17 | N G19 |
| 2 days ago | S G13 | S G13 | S G14 | S G15 | S G17 | S G14 | S G16 | S G18 | S G23 | S G15 | S G24 | S G20 | S G16 | SE G16 | S G16 | S G20 | S | S G20 | S G17 | S G15 | S | S G16 | S G10 | S |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Kenosha, Kenosha Regional Airport, WI | 4 mi | 24 min | WNW 9 | 7.00 mi | Rain | 48°F | 46°F | 93% | 998.2 hPa |
| Chicago/Waukegan Regional Airport, IL | 11 mi | 22 min | N 0 | 3.00 mi | Light Rain Fog/Mist | 47°F | 46°F | 100% | 998.1 hPa |
| Racine, Batten International Airport, WI | 13 mi | 24 min | WNW 4 | 5.00 mi | Light Rain Fog/Mist | 49°F | 48°F | 97% | 998.4 hPa |
| Burlington Municipal Airport, WI | 24 mi | 47 min | WNW 9 | 10.00 mi | Rain | 46°F | 46°F | 100% | 998.3 hPa |
Wind History from ENW (wind in knots)
| 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 | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | |
| Last 24hr | N | N | NE | NE | N | NW | NW | NW | NW | W | Calm | Calm | W | W | SW | W | W G19 | W | W | W | W | W | W | W |
| 1 day ago | S | S | S | S | S | S | SW G17 | NW G21 | N G19 | N | N | N | N | Calm | NW | NW | W | N | NW | NW | N | N | N | N |
| 2 days ago | S | S | S | S G17 | S | S G21 | S G21 | S G21 | S G22 | S G20 | S | S | S | S | S | S G21 | S | S | S G18 | S | S G19 | S | S | S |
Tide / Current Tables for
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EDIT (on/off) HelpWeather Map and Satellite Images
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Wind Forecast for Milwaukee/Sullivan, WI (7,2,3,4)
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Ground Weather Radar Station Milwaukee, 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. |