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Marine Weather and Tides
Version 3.4 |
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome. 10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name. |
| Sunrise 7:06AM | Sunset 6:06PM | Wednesday October 17, 2018 4:36 AM CDT (09:36 UTC) | Moonrise 2:55PM | Moonset 12:00AM | Illumination 54% |  |
LMZ646 Wind Point Wi To Winthrop Harbor Il- 305 Am Cdt Wed Oct 17 2018
.small craft advisory in effect through this evening...
Early this morning..West wind 15 to 20 knots veering northwest early in the morning. Mostly clear. Waves 1 to 2 feet.
Today..Northwest wind 15 to 20 knots becoming 15 to 25 knots late in the morning, then becoming 15 to 20 knots in the afternoon. Partly Sunny. Waves 2 to 4 feet.
Tonight..Northwest wind 15 to 20 knots easing to 10 to 15 knots after midnight, then becoming northwest 10 to 15 knots early in the morning. Clear. Waves 1 to 2 feet.
Thursday..West wind 5 to 10 knots becoming southwest 10 to 15 knots in the late morning and early afternoon, then rising to 15 to 20 knots late in the afternoon. Sunny. Waves 1 to 2 feet.
Thursday night..Southwest wind 15 to 20 knots. Gusts up to 25 knots. Clear. Waves 1 to 2 feet.
.small craft advisory in effect through this evening...
Early this morning..West wind 15 to 20 knots veering northwest early in the morning. Mostly clear. Waves 1 to 2 feet.
Today..Northwest wind 15 to 20 knots becoming 15 to 25 knots late in the morning, then becoming 15 to 20 knots in the afternoon. Partly Sunny. Waves 2 to 4 feet.
Tonight..Northwest wind 15 to 20 knots easing to 10 to 15 knots after midnight, then becoming northwest 10 to 15 knots early in the morning. Clear. Waves 1 to 2 feet.
Thursday..West wind 5 to 10 knots becoming southwest 10 to 15 knots in the late morning and early afternoon, then rising to 15 to 20 knots late in the afternoon. Sunny. Waves 1 to 2 feet.
Thursday night..Southwest wind 15 to 20 knots. Gusts up to 25 knots. Clear. Waves 1 to 2 feet.
LMZ646 Expires:201810172100;;310147
FZUS53 KMKX 170806
NSHMKX
Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
305 AM CDT Wed Oct 17 2018
For waters within five nautical miles of shore on Lake Michigan
LMZ646-172100-
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 170838 afdmkx area forecast discussion national weather service milwaukee sullivan wi 335 am cdt Wed oct 17 2018 Today and tonight Forecast confidence - medium. Area of stratocumulus clouds continue to stream southeast into northern portions of the area early this morning. Models show this cloud field continuing to push into a good portion of the area this morning, before slowly mixing out late this morning and this afternoon. Some uncertainty with how long it will take for these clouds to mix out. Gusty northwest winds are expected today, within a tight pressure gradient. Cool temperatures are expected as well, with highs mainly in the middle 40s. High pressure will pass by to the south of the area tonight. Winds will weaken as a result, with mostly clear skies expected. Lows should drop into the lower 30s in most areas, though this may be a bit too warm with the radiational cooling conditions expected. Thursday through Friday night Forecast confidence... Medium to high. Quiet conditions will continue through Thursday night as high pressure drifts southeast of the region. Increasing southwest winds on the backside of the departing high will result in slightly warmer air spreading back into southern wi. 925h temps rise into the 6-8c range. With sunshine and mild breezes, daytime temps should climb into the mid to upper 50s with a few spots reaching 60 in the west. Low level southwest winds will continue to increase Thursday night into Friday night ahead of an amplifying northern plains short wave. This wave and associated cold front will move through southern wi fairly quickly Friday afternoon evening. The rapid movement of this wave will prevent deeper atmospheric moisture from surging into southern wi ahead of the feature. Will continue chances for showers, but the more widespread precipitation looks to remain south of the area. The shower threat will end in upon frontal passage as drier air rapidly returns to the area. Dry low levels of the atmosphere ahead of the approaching cold front on Friday will allow strong wind gusts to mix down to the surface from mid-morning through late afternoon. Southwest wind gusts of 30 to 35 mph are expected during this period, before the front moves through. Extended period Saturday through Tuesday night... Forecast confidence - medium. Increasing northwest steering winds in the wake of the passing Friday evening cold front will carry a vigorous mid-level short wave across southern and central wi on Saturday. Canadian ECMWF solutions slightly slower than GFS but all medium range guidance carry this wave across southern wi during the day. Impressive 400h potential vorticity with this feature as mid-level lapse rates decrease to 7-8 degrees during the morning over the east. Burst of enhanced lift |
with this wave has deep moisture in the favorable dendritic growth zone. Lowered temps several degrees during the morning and went with a rain snow shower mix for a few hours in some areas. Visibilities may briefly drop in moderate rain snow showers. The enhanced lift from this wave quickly moves off to the east during the aftn with cool, northwest steering winds persisting into early the following week. Passing high pressure ridge will result in a quiet and cool day on Sunday. Increasing southwest winds will develop Sunday night and Monday ahead of approaching weak low pressure trof. This trof will pass across southern wi Monday aftn eve, but atmospheric moisture to remain sparse. Hence no need for pops. Medium range guidance weakens cool northwest steering winds across the great lakes by mid-week, with more seasonal conditions returning for several days later in the week. Aviation(09z tafs) Area of stratocumulus clouds continue to stream southeast into the area early this morning. Ceilings are around 3500 feet, and should remain so into this morning. These clouds may push into a good portion of the area into this morning. Some uncertainty with how long it will take to mix out the ceilings later this morning into this afternoon. Skies should be mostly clear by tonight. Gusty northwest winds are expected today, with gusts to around 20 knots from middle morning into the afternoon. Winds will weaken tonight, with high pressure passing by to the south. Marine Nearshore waters... Small craft advisory has been extended until 00z Thursday for the nearshore waters of lake michigan. Gusty northwest winds up to 30 knots are expected during this period. Any elevated waves will remain toward and over the open waters of lake michigan. Winds should reach small craft advisory levels again Thursday night into Saturday night, as a tight pressure gradient will linger over the region. Winds should remain offshore in nature, so any elevated waves will remain over the open waters of lake michigan. Open waters... A gale watch has been issued for the north half of the open waters of lake michigan for Thursday afternoon into Thursday evening. Gusty southwest gales to 35 knots are possible during this period. Building waves are expected during this period. The gales may linger later Thursday night into Friday night, spreading across the entire lake Friday into Friday night. The pressure gradient will remain tight during this period, with gales of 35 to 40 knots possible at times. The gale watch may need to be extended into this period in later forecasts. These winds should bring building waves as well. Mkx watches warnings advisories Wi... None. Lm... Small craft advisory until 7 pm cdt this evening for lmz643>646. Today and tonight aviation marine... Wood Thursday through Tuesday... mbk |
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 | 37 min | WNW 11 G 15 | 45°F | 1018.3 hPa (+1.4) | |||
| 45187 | 8 mi | 37 min | 47°F | 53°F | 1 ft | |||
| WHRI2 - Waukegan Harbor, IL | 15 mi | 57 min | WNW 9.9 G 14 | 46°F | ||||
| 45186 | 15 mi | 37 min | NW 12 | 48°F | 56°F | 1 ft | ||
| MLWW3 - Milwaukee, WI | 32 mi | 27 min | WNW 8.9 G 12 | 44°F | ||||
| 45174 | 33 mi | 27 min | W 16 G 21 | 49°F | 58°F | 1 ft | 39°F | |
| 45013 | 36 mi | 60 min | W 14 G 18 | 46°F | 54°F | 1 ft | 1018.1 hPa | |
| FSTI2 | 43 mi | 97 min | W 19 | 46°F | ||||
| 45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI | 45 mi | 47 min | NW 19 G 23 | 52°F | 58°F | 5 ft | 1017.1 hPa (+1.1) | 37°F |
| CHII2 - Chicago, IL | 49 mi | 37 min | W 19 G 21 | 49°F | 34°F |
Wind History for Calumet Harbor, IL
(wind in knots) EDIT (on/off) Help| 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | -12 PM | -12 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | 3 AM | |
| Last 24hr | SW G10 | SW G8 | S | S | SW G10 | SW G13 | SW G17 | SW G19 | SW G23 | SW G20 | SW G16 | SW G14 | SW G11 | SW G9 | SW G10 | SW G9 | SW G11 | SW G13 | SW G11 | SW G9 | SW | SW G9 | ||
| 1 day ago | W G12 | W G15 | W G12 | NW G12 | W G12 | W G13 | W G13 | W G14 | W G13 | SW G10 | W G11 | W G14 | SW G13 | W G12 | W G4 | SW | SW | S | SW | SW | SW | SW | SW G7 | |
| 2 days ago | S | S | S | SE | S | S G10 | SE G11 | S G12 | S G10 | SW G6 | SW G11 | SW G8 | -- | W G6 | W | NW | NW G9 | W G6 | NW | W | NW G7 | W G7 | W G5 |
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 | 44 min | NW 10 | 10.00 mi | Fair | 43°F | 34°F | 71% | 1018.7 hPa |
| Chicago/Waukegan Regional Airport, IL | 11 mi | 42 min | WNW 6 | 10.00 mi | Fair | 44°F | 32°F | 63% | 1018.4 hPa |
| Racine, Batten International Airport, WI | 13 mi | 44 min | NW 7 | 10.00 mi | Fair | 43°F | 32°F | 65% | 1018.8 hPa |
| Burlington Municipal Airport, WI | 24 mi | 62 min | NW 6 | 10.00 mi | Fair | 40°F | 32°F | 74% | 1018.6 hPa |
Wind History from ENW (wind in knots)
| 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 | SW | SW | SW | SW G24 | SW G27 | SW G29 | SW G26 | SW G29 | W G32 | W G33 | W G26 | W G24 | W | W | SW | W | W | W | W | W | W | NW | |
| 1 day ago | NW | NW G18 | NW G18 | W | NW G22 | NW G27 | NW G22 | NW G21 | W G25 | W | W G24 | W G23 | W G17 | W G21 | W | W | W | W | W | SW | SW | SW | SW | SW |
| 2 days ago | SW | S | SW | SW | SW | S | S | S | S | SW | SW | W | W | W | W | W | W | W | W | NW | NW G16 | NW G19 | NW | NW G17 |
Tide / Current Tables for
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EDIT (on/off) HelpWeather Map and Satellite Images
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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 (5,6,7,8)
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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. |