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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 5:06AM | Sunset 8:42PM | Saturday June 24, 2017 2:09 AM CDT (07:09 UTC) | Moonrise 5:48AM | Moonset 9:10PM | Illumination 0% |  |
Marine Forecasts
EDIT (on/off) Help| LMZ541 Green Bay South Of Line From Cedar River To Rock Island Passage And North Of A Line From Oconto Wi To Little Sturgeon Bay Wi- Green Bay South Of Line From Oconto Wi To Little Sturgeon Bay Wi- Rock Island Passage To Sturgeon Bay Wi- Sturgeon Bay To Two Rivers Wi-two Rivers To Sheboygan Wi- 839 Pm Cdt Fri Jun 23 2017 Rest of tonight..NW wind 10 to 15 kts. Waves 2 ft or less. A slight chance of showers in the evening. Saturday..W wind 10 to 15 kts. Waves 2 ft or less. A chance of showers in the morning. A chance of Thunderstorms. Rain showers likely in the afternoon. Saturday night..NW wind 10 to 15 kts. Waves 2 ft or less. A chance of showers. Sunday..W wind 10 to 15 kts. Waves 2 ft or less. A chance of showers. | LMZ541 Expires:201706241015;;720654 FZUS53 KGRB 240139 NSHGRB Nearshore Marine Forecast National Weather Service Green Bay WI 839 PM CDT Fri Jun 23 2017 For waters within five nautical miles of shore on Lake Michigan LMZ521-522-541>543-241015- |
7 Day Forecast for Marine Location Near Ellison Bay, WI
Hourly EDIT Helplocation: 45.21, -87.02 debug
Area Discussion for - Green Bay, WI
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kgrb 240334 afdgrb area forecast discussion national weather service green bay wi 1034 pm cdt Fri jun 23 2017 updated aviation portion for 06z TAF issuance Short term Tonight and Saturday issued at 235 pm cdt Fri jun 23 2017 instability showers developed across northeast minnesota and northwest wisconsin this afternoon. The showers were moving to the southeast and will move into portions of the area during the remainder of the afternoon into early evening, especially north and west of the fox valley. An isolated thunderstorm can not be ruled out north and west of the fox valley. If any thunderstorm that does develop could produce gusty winds to around 35 mph and small hail. Cyclonic flow should leave some cloudiness through the night, thus partly cloudy skies should suffice. Late tonight, next shortwave energy could bring a chance of showers to the far north late tonight. The more potent shortwave will move across the region. Very cold air aloft at 500mb noted tomorrow with temperatures approaching -25c. The combination of daytime heating and cold air aloft would support scattered showers and thunderstorms through the day. Total totals approaching 55, and the 50 surface dewpoint and -20c at 500mb rule would also support the possibility of an isolated severe hail report Saturday afternoon. It will be very cool with highs around 60 north to around 70 across northeast and east-central wisconsin. Long term Saturday night through Friday issued at 235 pm cdt Fri jun 23 2017 a similar pattern in the long term forecast as what models have shown for the past few days. Focus is on timing of precipitation and temperatures. Showers and some thunderstorms are likely to be scattered across the area at the start of the period. This will begin tapering off through the late evening as instability is lost and the potent mid-level short wave moves east. A brief break in activity is expected Saturday night into Sunday morning before another shortwave comes through late Sunday morning and afternoon. Shear remains weak (less than 15 knots), with some instability by mid- afternoon (mucape 800-1200 j kg). While these |
parameters lead to low confidence in severe criteria thunderstorms, low and mid- level lapse rates remain steep (7-8 c km) with low wet- bulb zero heights around 6500 ft. Some small hail and strong gusty winds cannot be ruled out within any stronger storms that develop. There should once again be a quiet period late Sunday early Monday with another shortwave pushing through Monday morning. Thunderstorms chances appear weaker on Monday as the strongest shortwave energy may be east before peak heating. There will also be high pressure building in at the surface. Will continue a chance showers slight chance thunderstorms through Monday afternoon, but models seem to be trending towards ending this activity earlier in the day. Tuesday still looks dry as high pressure builds in at the surface. Beyond Tuesday, models are in slightly more agreement that flow will turn west southwest by midweek with a surface warm front pushing across the area and strong WAA to bring thunderstorm chances to the area Wednesday and Thursday. Continued with the blended model solution for this time period. It is too early to determine the potential strength of these storms. Temperatures will be below normal through the weekend and early next week while the upper level trough remains over the great lakes. Temperatures will moderate closer to seasonal normal by midweek when the trough moves east. Aviation For 06z TAF issuance issued at 1034 pm cdt Fri jun 23 2017 vfr conditions expected tonight into Saturday morning. Mainly mid level clouds will be on the increase form the northwest as an upper trough appraoches the region. An upper low pressure system dropping into the state later Saturday may produce more showers along with a few thunderstorms. Scattered MVFR CIGS may develop across parts of the area with the showers. Grb watches warnings advisories None. Short term... ..Eckberg long term... ... Klb aviation... ... .Tdh |
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 |
| NPDW3 - Northport Pier at Death's Door WI | 6 mi | 89 min | W 2.9 G 6 | 63°F | 1007.1 hPa | |||
| CBRW3 - Chambers Island, WI | 18 mi | 89 min | SW 2.9 G 6 | 61°F | 1007.1 hPa | |||
| MN4 - 9087088 - Menominee, MI | 31 mi | 51 min | WSW 7 G 8.9 | 1007 hPa | ||||
| FPTM4 - Fairport, MI | 34 mi | 89 min | NW 2.9 G 5.1 | 61°F | 1006.8 hPa | |||
| 45002 - N MICHIGAN- Halfway between North Manitou and Washington Islands. | 34 mi | 79 min | SW 5.8 G 5.8 | 60°F | 57°F | 1 ft | 1007.5 hPa (+1.1) | |
| 45014 | 48 mi | 39 min | W 12 G 16 | 63°F | 1007.9 hPa |
Wind History for Menominee, MI
(wind in knots) EDIT (on/off) Help| 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 | 10 PM | 11 PM | 12 AM | 1 AM | |
| Last 24hr | SW | W | W G6 | W G9 | W | W | W | W G11 | SW | W G12 | W G15 | SW G20 | SW G23 | W G19 | W G19 | W G13 | W G16 | W G8 | W G14 | W G10 | W | W G7 | W G9 | SW |
| 1 day ago | S G12 | S G16 | SW G9 | S G8 | SW | S G14 | SW G11 | SW G12 | SW G21 | SW G15 | SW | S | W G9 | W G10 | S | SW G9 | SW | SW | NW | -- | S | SW | SW | |
| 2 days ago | W | W | NW | N | NE | E | E | SE | SE | SE | SE | SE | SE | SE G18 | SE | S G12 | S G11 | S G12 | S G14 | S | S G14 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Door County Cherryland Airport, WI | 32 mi | 73 min | W 4 | 10.00 mi | 61°F | 52°F | 72% | 0 hPa | |
Wind History from SUE (wind in knots)
| 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 | 10 PM | 11 PM | 12 AM | 1 AM | 2 AM | |
| Last 24hr | W | NW | W | SW | W | NW | NW | W | W | W | W G18 | W | W G18 | W G21 | NW | W | W | W | W | W | NW | W | W | W |
| 1 day ago | S | S | SW | S | SW | SW | W | SW | SW | W | W | SW | NW | SW | SW | S | SW | S | NW | Calm | SW | S | SW | W |
| 2 days ago | Calm | Calm | Calm | Calm | NW | NW | NW | N | NW | W | SE | SE | SE | SE | S | S G17 | S G17 | S | S | S | S | S | S | S |
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 Green Bay, WI (3,6,7,8)
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Ground Weather Radar Station Green Bay, 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. |