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Marine Weather and Tides
Version 3.4 |
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 5:12AM | Sunset 8:34PM | Friday June 23, 2017 5:21 AM CDT (10:21 UTC) | Moonrise 5:00AM | Moonset 8:04PM | Illumination 1% |  |
Marine Forecasts
EDIT (on/off) Help| LMZ646 Wind Point Wi To Winthrop Harbor Il- 249 Am Cdt Fri Jun 23 2017 Early this morning..West wind 10 to 15 knots veering northwest to north early in the morning. Periods of showers and Thunderstorms. Waves 2 to 4 feet subsiding to 1 to 3 feet early in the morning. Today..Northwest wind 10 to 15 knots. Gusts to 20 knots in the afternoon. Scattered showers in the morning. Waves 1 to 2 feet. Tonight..Northwest wind 10 to 15 knots. Gusts up to 20 knots in the evening then 20 knots after midnight. Partly cloudy. Waves 1 to 2 feet. Saturday..West wind 10 to 15 knots with gusts to around 20 knots. Mostly Sunny. Waves 1 to 2 feet. Saturday night..West wind 10 to 15 knots with gusts to around 20 knots. Slight chance of showers through around midnight. Waves 1 to 2 feet. | LMZ646 Expires:201706232115;;677904 FZUS53 KMKX 230749 NSHMKX Nearshore Marine Forecast National Weather Service MILWAUKEE/SULLIVAN WI 249 AM CDT Fri Jun 23 2017 For waters within five nautical miles of shore on Lake Michigan LMZ646-232115- |
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 230839 afdmkx area forecast discussion national weather service milwaukee sullivan wi 339 am cdt Fri jun 23 2017 Short term Today and tonight... Forecast confidence medium. The upper trough over the northern plains continues to drop south across lake superior and wisconsin tonight, with southern wisconsin getting into the entrance region of the 115 knot 250 mb jet later tonight. Moderate upper divergence through sunrise today, then weak upper divergence. A mid level 500 mb shortwave moves across southern wisconsin late this afternoon and evening. Only weak 700 mb upward motion due to the cold advection. However lapse rates steepen, and zero to 1 km mixed layer CAPE values increase to around 350 joules kg. Therefore expect at least isolated showers late this afternoon and evening. Cold air advection will be occurring today behind the cold front. Some initial clearing, but then more convective clouds will develop this afternoon and into the evening with the steepening lapse rates. Long term Saturday through Monday Forecast confidence is medium. An upper trough will dominate with a strong shortwave moving through Saturday afternoon. Models are in agreement showing some precip and a few hundred j of cape. Temperatures will be cooler with the influence of the trough. At the surface, low pressure will remain over southeast canada with high pressure sliding south across the norther plains. Low level lapse rates will be steep so we may tap 850 winds of 20-25 knots. West winds will be a little gusty on Saturday. Another shortwave moves through on Sunday creating another chance |
for mainly afternoon showers and thunderstorms. There is less instability on Monday. The ECMWF shows almost no CAPE so just have chance for showers. Tuesday and Wednesday Forecast confidence is high. A mid level ridge pushes into the region on Tuesday and temperatures start to rebound. Surface slides southwest of the state on Tuesday bringing dry weather. Then the high moves off to the southeast as the next low approaches the region. Surface flow becomes southwest and moisture advection increases. Instability builds and expect showers and thunderstorms Wednesday or Thursday as the low moves through. Aviation(06z tafs) A line of thunderstorms will slowly slide southeast through southern wi overnight. This line is moving slower than expected. Scattered storms are possible out ahead of this line. The risk for severe storms is pretty low for the rest of the night. Period of MVFR ceilings possible behind the front overnight. Quiet weather expected Friday. Marine Thunderstorms are sliding southeastward across the area early this morning. A period of north winds of 15 to 25 mph with the front. Then mainly northwest winds later today. Some gusts to 25 knots, especially north areas this afternoon. As a result have issued a small craft advisory there for this afternoon and early evening. Mkx watches warnings advisories Wi... None. Lm... Small craft advisory from 1 pm this afternoon to 8 pm cdt this evening for lmz643. Today tonight and aviation marine... Hentz Saturday through Thursday... Marquardt |
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 | 81 min | NNW 6 G 12 | 65°F | 1004.1 hPa (-0.3) | |||
| WHRI2 - Waukegan Harbor, IL | 15 mi | 41 min | NW 8 G 13 | 65°F | ||||
| MLWW3 - Milwaukee, WI | 32 mi | 31 min | N 6 G 8 | 64°F | ||||
| 45174 | 33 mi | 31 min | N 18 G 21 | 66°F | 64°F | 1 ft | 64°F | |
| 45013 | 36 mi | 102 min | SE 1.9 G 3.9 | 60°F | 59°F | 1004.8 hPa | ||
| FSTI2 | 43 mi | 141 min | SW 18 | 76°F | ||||
| 45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI | 45 mi | 91 min | NNE 7.8 G 12 | 63°F | 61°F | 2 ft | 1003.5 hPa (-0.0) | 63°F |
| OKSI2 | 48 mi | 141 min | Calm | 77°F | ||||
| CHII2 - Chicago, IL | 49 mi | 31 min | WSW 9.9 G 13 | 77°F | 72°F | |||
| 45177 | 49 mi | 141 min | 65°F |
Wind History for Calumet Harbor, IL
(wind in knots) EDIT (on/off) Help| 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 | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | |
| Last 24hr | SW G15 | SW G10 | S G13 | SW G11 | S G13 | SW G15 | SW G16 | S G16 | S G18 | S G11 | S G14 | S G21 | SW G18 | S G14 | S G21 | S G20 | S G19 | S G15 | S G14 | S G15 | S G14 | S G13 | SW G11 | SW G11 |
| 1 day ago | N | -- | NE | NE | NE | E | NE G8 | NE | NE G11 | NE | NE | NE G9 | E | E | E | E | NE | E | E | SE | SE | S G9 | S G10 | S G16 |
| 2 days ago | SW G7 | SW | SW | SW G10 | SW G9 | SW G15 | SW G12 | SW G15 | SW G11 | N G13 | N G16 | N G16 | E | E G15 | E | E | -- | N | E | SE | NW | NW | N | NE |
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 | 28 min | NE 6 | 8.00 mi | Thunderstorm Light Rain | 66°F | 64°F | 93% | 1003.5 hPa |
| Chicago/Waukegan Regional Airport, IL | 11 mi | 26 min | N 0 | 4.00 mi | Thunderstorm in Vicinity Light Rain Fog/Mist | 66°F | 64°F | 96% | 1002.1 hPa |
| Racine, Batten International Airport, WI | 13 mi | 28 min | NNE 7 | 5.00 mi | Thunderstorm Light Rain Fog/Mist | 65°F | 63°F | 93% | 1004.6 hPa |
| Burlington Municipal Airport, WI | 24 mi | 26 min | N 9 G 14 | 7.00 mi | Rain | 69°F | 69°F | 100% | 1004.7 hPa |
Wind History from ENW (wind in knots)
| 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 | SW | SW | SW G21 | SW G19 | S G24 | SW G23 | SW G22 | SW | SW G17 | SW | SW | S G18 | S | SW | SW | SW | Calm | SW | SW | SW G17 | SW | SW | E | NE |
| 1 day ago | Calm | Calm | W | Calm | E | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | SE | S | S | S | S | SW G21 |
| 2 days ago | SW | SW | W | W | W | W | NW | NE | NE G15 | E | SW | SW | SW | W | Calm | W | W | SW | Calm | SW | Calm | Calm | W |
Tide / Current Tables for
EDIT RT Ports Option Weekend mode (on/off) (on/off) HelpTide / Current Tables for
EDIT (on/off) HelpWeather Map and Satellite Images
(on/off) HelpWeather Map | IR Satellite Image from GEOS GOES Local Image of GreatLakes EDIT  |
Wind Forecast for Milwaukee/Sullivan, WI (6,6,7,8)
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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. |