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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 7:10AM | Sunset 4:19PM | Wednesday December 12, 2018 6:00 AM CST (12:00 UTC) | Moonrise 12:04PM | Moonset 10:19PM | Illumination 24% |  |
LMZ646 Wind Point Wi To Winthrop Harbor Il- 505 Am Cst Wed Dec 12 2018
.small craft advisory in effect until 3 pm cst this afternoon...
Today..Southeast wind 15 to 25 knots veering south late in the morning, then veering southwest 15 to 20 knots early in the afternoon easing to 10 to 15 knots late in the afternoon. Chance of rain in the morning, then slight chance of rain early in the afternoon. Waves 4 to 6 feet subsiding to 3 to 5 feet in the afternoon.
Tonight..Southwest wind 10 to 15 knots veering west late in the evening, then easing to 5 to 10 knots after midnight backing southwest early in the morning. Mostly cloudy. Waves around 1 foot.
Thursday..Southwest wind 5 to 10 knots backing south late in the morning, then rising to 10 to 15 knots early in the afternoon backing southeast late in the afternoon. Partly Sunny. Waves around 1 foot.
Thursday night..Southeast wind 5 to 10 knots backing northeast early in the morning. Rain likely through around midnight, then rain after midnight. Waves 1 to 2 feet. Wave heights are for ice free areas.
.small craft advisory in effect until 3 pm cst this afternoon...
Today..Southeast wind 15 to 25 knots veering south late in the morning, then veering southwest 15 to 20 knots early in the afternoon easing to 10 to 15 knots late in the afternoon. Chance of rain in the morning, then slight chance of rain early in the afternoon. Waves 4 to 6 feet subsiding to 3 to 5 feet in the afternoon.
Tonight..Southwest wind 10 to 15 knots veering west late in the evening, then easing to 5 to 10 knots after midnight backing southwest early in the morning. Mostly cloudy. Waves around 1 foot.
Thursday..Southwest wind 5 to 10 knots backing south late in the morning, then rising to 10 to 15 knots early in the afternoon backing southeast late in the afternoon. Partly Sunny. Waves around 1 foot.
Thursday night..Southeast wind 5 to 10 knots backing northeast early in the morning. Rain likely through around midnight, then rain after midnight. Waves 1 to 2 feet. Wave heights are for ice free areas.
LMZ646 Expires:201812121700;;675083
FZUS53 KMKX 121106
NSHMKX
Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
505 AM CST Wed Dec 12 2018
For waters within five nautical miles of shore on Lake Michigan
LMZ646-121700-
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 121146 aaa afdmkx area forecast discussion... Updated national weather service milwaukee sullivan wi 546 am cst Wed dec 12 2018 Update Snow band has formed and is moving northeast through parts of south central wisconsin. It should continue to rotate northeast and north across the area. A combination of the 4 km NAM nest and wrf nmm seems to have the best handle on the timing of this feature across the area this morning. It should move through the madison area between 12z and 15z, and should expand southeastward to clip the southeastern parts of the area including milwaukee between 13z and 17z. Areas near the lake may see more of a mix, with milder temperatures there. Moderate snow should be occurring in the heavier reflectivity areas, with 1 4 to 1 2 inch per hour snowfall rates. Up to an inch of accumulation is possible, highest north of madison. May see some light freezing rain drizzle as the precipitation ends during the morning, especially over areas south and west of madison. Will keep winter weather advisory going this morning across the area. Aviation(12z tafs) Some ifr ceilings will continue to develop on and off across the terminals early this morning. The band of moderate snow is expected to continue to rotate northeast and northward, clipping most of the area this morning. Areas near the lake may see more of a mix, with milder temperatures there. Some light freezing rain drizzle is possible for areas west and south of madison, mainly as the precipitation ends from middle to late morning. The best estimates for timing at madison is between 12z and 15z, with the eastern terminals between 13z and 17z. Ifr ceilings and visibility values are expected with the snow. Heaviest snow rates would be 1 4 to 1 2 inch per hour, with total amounts up to an inch, highest north of madison. A light glazing may occur as well, mainly west and south of madison, as the precipitation winds down. Gusty southeast winds near the lake this morning should weaken this afternoon, with lighter winds elsewhere. Low clouds with ifr MVFR ceilings are expected to linger this afternoon and tonight, lowest north of the terminals. May see light MVFR category fog develop later tonight as well. Prev discussion (issued 405 am cst Wed dec 12 2018) short term... today and tonight... Forecast confidence is medium. Potent negatively tiled 500 mb shortwave trough will move across southern wisconsin this morning and early this afternoon, before moving into lower michigan by this evening. Strong upward vertical motion from this feature, along with low level frontogenesis response rotating northward through the area and a good feed of moisture at 850 mb, should bring a band of moderate snow through the area. There is some uncertainty with the timing and placement of this band, as the hrrr and 4 km NAM nest models are slowing the development and timing of this band until around or after 6 am in south central wisconsin. The hrrr now has the moderate snow staying just north of the area this morning, with the NAM nest focusing on the northern and northeastern counties. Others are still keeping the band rotating through most of the area this morning. Up to an inch of snow is forecast, highest north of madison. Areas in southeast wisconsin near the lake may see more of a mix, given the milder temperatures there. Could still see some light freezing rain drizzle mix in across areas west and south of madison, as ice crystals may be lost in this area, especially as the precipitation winds down. Only a light glazing is expected, but this still may cause slippery conditions on untreated surfaces. Given the timing of this snow light freezing rain drizzle potentially affecting the morning commute, kept the winter weather advisory going for now. May need to trim these northward if the snow band develops further to the north. The snow should mix with and change to mainly rain as it moves northeast of the area by early afternoon. Temperatures should then drop a little this afternoon, as colder air moves into the area in the wake of the surface low. Temperatures should rise to or hold steady in the middle 30s this afternoon. Winds will become light tonight, with low clouds lingering. May see light fog develop later tonight as well. Lows should drop into the middle 20s. |
Thursday through Saturday... Forecast confidence medium. Mild temps will continue through this period. SRN wi will be between a split jet stream flow with a strong SRN low pressure system tracking from tx across the SE half of the usa. The inverted trough extending nwd from the SRN low is weaker than prior runs resulting in a shorter period of rain snow potential. The main window for pcpn will be Thu nt possibly lingering into Fri am over se wi. Locations north and west of madison could stay dry. Rain will likely be the predominant pcpn type with some mention of snow mainly west of milwaukee. Upper ridging and a sfc ridge will build into the region for late fri-sat. A mild and sunny day is expected for sat. Long term... Sunday through Tuesday... Forecast confidence medium. The extended models still show uncertainty with the timing and strength of a cold front for Sun or Sun nt. This will have an impact on temps with possibly very mild temps expected if the warmer solution of the ECMWF is correct. High pressure and rising heights will then build into the region late on Mon with swly winds and warm advection for tue. Aviation(09z tafs)... some ifr ceilings will continue to develop on and off across the terminals early this morning. A band of moderate snow is expected to develop in south central wisconsin after 5 am this morning, and then rotate northward and clip most of the area this morning. There is some uncertainty with the timing and placement of this band, and areas toward the illinois border may not see as much snow. There is some light freezing rain drizzle possible for areas west and south of madison, mainly as the precipitation ends from middle to late morning. The best estimates for timing at madison is between 11z and 16z, with the eastern terminals between 12z and 16z. Ifr ceilings and visibility values are expected with the snow. Heaviest snow rates would be 1 4 to 1 2 inch per hour, with total amounts up to an inch, highest north of madison. A light glazing may occur as well, mainly west and south of madison, as the precipitation winds down. Gusty southeast winds near the lake this morning should weaken this afternoon, with lighter winds elsewhere. Low clouds with ifr MVFR ceilings are expected to linger this afternoon and tonight, lowest north of the terminals. May see light MVFR category fog develop later tonight as well. Marine... nearshore waters... small craft advisory continues until 21z this afternoon for areas south of north point lighthouse, and until 03z this evening north of there. Gusty southeast winds are already occurring across the nearshore waters of lake michigan. Gusts of 25 knots are expected, with a few 30 knot gusts possible. These winds will weaken this afternoon from south to north, as low pressure moves through the area. Waves will build to 4 to 6 feet into early afternoon south of north point lighthouse, with 4 to 8 foot waves north of there. The waves will also subside from south to north this afternoon into this evening. Generally light winds and waves are then expected tonight into Saturday. Open waters... gusty southeast winds to 30 knots are expected this morning across the open waters of lake michigan. They should gradually weaken this afternoon into tonight, as low pressure moves through the central parts of the lake. Elevated waves are expected across the western shore of the lake today, subsiding from south to north into tonight. Generally light winds and modest waves are then expected tonight into Saturday. Mkx watches warnings advisories Wi... Winter weather advisory until noon cst today for wiz056-062-063- 067>069. Winter weather advisory until noon cst today for wiz046-047-051- 052-057>060-064>066-070>072. Lm... Small craft advisory until 3 pm cst this afternoon for lmz645- 646. Small craft advisory until 9 pm cst this evening for lmz643-644. Update... Wood today tonight and aviation marine... Wood Thursday through Tuesday... Gehring |
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 | 60 min | SSE 20 G 22 | 38°F | 1008.1 hPa (-4.4) | |||
| WHRI2 - Waukegan Harbor, IL | 15 mi | 20 min | SSE 18 G 22 | 36°F | ||||
| MLWW3 - Milwaukee, WI | 32 mi | 20 min | SSE 15 G 16 | 38°F | ||||
| FSTI2 | 43 mi | 120 min | SSE 19 | 35°F | ||||
| CHII2 - Chicago, IL | 49 mi | 30 min | S 20 G 24 | 37°F | 32°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 | SW G10 | SW G11 | SW G8 | SW G11 | SW G12 | SW G9 | SW G7 | SW G8 | W G7 | W | W | NE | E | E G9 | E | E | E | SE G6 | SE G9 | SE | SE G10 | SE G11 | S G16 | SE G13 |
| 1 day ago | SW | SW G6 | SW G8 | S | SW G7 | SW | SW G9 | SW G13 | S G12 | S | S G14 | S | S | S G12 | SW G12 | SW G12 | S G13 | SW G13 | SW G12 | SW | SW G12 | SW G11 | SW | |
| 2 days ago | SW | SW | SW | SW G4 | SE | NE | N | N | N | NE | N | N | NW | NW | NW G6 | W | W | W | W | SW | SW | SW | SW |
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 | 67 min | SE 10 | 6.00 mi | Fog/Mist | 37°F | 33°F | 86% | 1009 hPa |
| Chicago/Waukegan Regional Airport, IL | 11 mi | 65 min | SSE 12 G 19 | 7.00 mi | Fair | 36°F | 30°F | 79% | 1009.3 hPa |
| Racine, Batten International Airport, WI | 13 mi | 67 min | SSE 12 | 7.00 mi | A Few Clouds | 38°F | 33°F | 83% | 1009.7 hPa |
| Burlington Municipal Airport, WI | 24 mi | 65 min | SE 4 | 7.00 mi | Fair | 32°F | 28°F | 88% | 1008.1 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 | W | W | W | NW | W | W | W | Calm | E | E | E | E | E | E | E | SE | SE | SE | SE | SE | SE | SE | SE | SE |
| 1 day ago | W | SW | W | W | W | W | SW | W | SW | SW G17 | SW | SW | SW | SW | W | W | W | SW | W | SW | W | W | W | W |
| 2 days ago | W | W | W | W | W | W | NW | NW | NW | NW | NW | NW | W | W | W | W | W | W | W | W | W | W | W | W |
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 (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. |