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Marine Weather and Tides
Version 3.4 |
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen |
| Sunrise 6:02AM | Sunset 7:46PM | Friday August 23, 2019 6:56 PM CDT (23:56 UTC) | Moonrise 11:49PM | Moonset 1:57PM | Illumination 41% |  |
LMZ541 Expires:201908240445;;097484 Fzus53 Kgrb 231954 Nshgrb Nearshore Marine Forecast National Weather Service Green Bay Wi 254 Pm Cdt Fri Aug 23 2019 For Waters Within Five Nautical Miles Of Shore On Lake Michigan Lmz521-522-541>543-240445- 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- 254 Pm Cdt Fri Aug 23 2019
Tonight..NE wind 10 to 15 kts. Waves 2 ft or less. Clear.
Saturday..E wind 5 to 10 kts. Waves 2 ft or less. Mostly Sunny.
Saturday night..SE wind 5 to 10 kts veering S after midnight. Waves 2 ft or less. Clear.
Sunday..SE wind 10 to 15 kts. Waves 1 to 3 ft. Mostly Sunny.
Tonight..NE wind 10 to 15 kts. Waves 2 ft or less. Clear.
Saturday..E wind 5 to 10 kts. Waves 2 ft or less. Mostly Sunny.
Saturday night..SE wind 5 to 10 kts veering S after midnight. Waves 2 ft or less. Clear.
Sunday..SE wind 10 to 15 kts. Waves 1 to 3 ft. Mostly Sunny.
LMZ541
7 Day Forecast for Marine Location Near Ephraim, WI
Hourly EDIT Helplocation: 45.16, -87.18 debug
Area Discussion for - Green Bay, WI
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kgrb 232318 afdgrb area forecast discussion national weather service green bay wi 618 pm cdt Fri aug 23 2019 updated aviation portion for 00z TAF issuance Short term Tonight and Saturday issued at 229 pm cdt Fri aug 23 2019 quiet weather is anticipated in the short-term, with only cloud trends, temperatures and nighttime fog potential to consider. Canadian high pressure was ridged over northeast wi this afternoon, with scattered diurmal cumulus covering much of the forecast area. Temperatures were cool, ranging from the middle 60s to lower 70s. The canadian high will drift slowly eastward through Saturday. At the same time, an upper level ridge will build into the region. The combination of these features, along with very dry air in place, will lead to quiet conditions. The main concern with this setup will be patchy fog over northern wi late tonight into early Saturday. Otherwise, expect diurnal cumulus to dissipate early this evening, then reform during the late morning and afternoon on Saturday. Cool temperatures will persist into Saturday. Lows tonight will range from the upper 30s in the cold spots of north central wi to the 40s and lower 50s elsewhere. Highs on Saturday may be a degree or two warmer than today, with most locations getting into the upper 60s to middle 70s. Long term Saturday night through Friday issued at 229 pm cdt Fri aug 23 2019 models continue to show a strengthening upper trough that will dig southeast into the great lakes early next week. Eventually, this trough to expand and cover much of the northern tier of states as a closed upper low develops over northwest ontario hudson bay. The resultant broad, cyclonic flow aloft to keep an unsettled weather pattern for northeast wi through mid-week. Canadian high pressure is forecast to build into wi later Wednesday into Thursday before the passage of a cold front on Friday brings rain chances back into the forecast. Temperatures should be a bit below normal this weekend, rise to around normal Monday-Wednesday, then fall below normal again Thursday-Friday. Northeast wi to remain on the western periphery of the broad area of high pressure centered over southeast canada northeast conus Saturday night. Another night of clear skies and light winds can be expected with min temperatures in the middle to upper 40s north, lower to middle 50s south. The high pressure finally begins to lose its influence on our weather on Sunday as a prevailing southeast wind begins to pull more moisture north into the region. Still expect dry conditions through the day, but we may see more cumulus clouds compared to Saturday. Temperatures to remain below normal with most locations in the lower to middle 70s. Clouds will be on the increase Sunday night ahead of the strengthening upper trough moving into the northern plains. If saturation can be achieved, there could already be a few showers to reach central wi after midnight. Min temperatures to be in the lower to middle 50s north, middle 50s to around 60 degrees south. The upper trough is forecast to reach the upper ms valley on |
Monday with a series of mid-level shortwaves moving within the trough. Models are now showing a better signal that one such shortwave will lift northeast into the region and help to set off showers slight chance of thunderstorms by Monday afternoon. Instability still looks weak, but there may be enough shear to provide for a locally strong storm. Pw values of around 1.5" may also provide for locally heavy rainfall. MAX temperatures for Monday to be in the lower 70s north-central wi near lake mi, middle to upper 70s elsewhere. Showers isolated thunderstorms to continue into at least Monday evening as the upper trough (and its associated cold front) drive eastward into the western great lakes. As the stronger lift and forcing push east overnight, anticipate the precipitation to become more scattered in nature. Still cannot rule our a few showers rumble of thunder on Tuesday as northeast wi to be under a broad, cyclonic flow aloft. MAX temperatures for Tuesday to be in the upper 60s to lower 70s north-central wi, lower to middle 70s elsewhere. Other than a few showers that could linger into the evening hours, the vast majority of Tuesday night should be dry as daytime heating wanes. Wednesday could be a replay of Tuesday's weather as the region remains under the influence of the broad upper trough. Once again, any precipitation would be spotty with many dry hours in between. MAX temperatures to reach the middle to upper 60s north-central, lower to middle 70s for everyone else. There remains questions in the forecast for late next week as the models have timing issues with regards to the passage of the next cold front. The gem advertises a frontal passage as early as Wednesday night, while the gfs ECMWF suggest a late Thursday night Friday passage. Have leaned the forecast toward the latter model solution, thus allowing high pressure passing to our south to keep Wednesday night through most of Thursday night dry. Chance of showers possible thunderstorms to then accompany the cold front for late Thursday night into Friday. Gulf moisture may be limited, thus any rainfall should not be heavy. MAX temperatures for both Thursday and Friday to be slightly below normal with readings from the middle to upper 60s north near lake mi, upper 60s to lower 70s south. Aviation For 00z TAF issuance issued at 618 pm cdt Fri aug 23 2019 diurnal cumulus clouds, with bases of 4-6k ft, should dissipate quickly after sunset. Diurnal cumulus clouds are again expected to develop during the morning and into the afternoon on Saturday. Some patchy MVFR ifr fog is possible across northern wisconsin later tonight into Saturday morning. OtherwiseVFR conditions are expected at all of the TAF sites through the period. Winds will be light from the northeast to east, so patches of lake-enhanced low clouds cannot be ruled out near lake michigan late tonight into early Saturday. Confidence is not high enough to include at mtw or grb at this time. Grb watches warnings advisories None. Short term... ..Kieckbusch long term... ... Kallas aviation... ... .Kurimski |
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 | 14 mi | 76 min | E 2.9 G 4.1 | 69°F | 1024.4 hPa | |||
| MN4 - 9087088 - Menominee, MI | 22 mi | 56 min | NE 6 G 7 | 67°F | 70°F | 1024.5 hPa (+0.0) | ||
| 45014 | 40 mi | 56 min | NE 7.8 G 9.7 | 73°F | 70°F | 1024.6 hPa | ||
| FPTM4 - Fairport, MI | 42 mi | 76 min | E 2.9 G 7 | 67°F | 1024.4 hPa | |||
| 45002 - N MICHIGAN- Halfway between North Manitou and Washington Islands. | 43 mi | 36 min | NNE 5.8 G 7.8 | 66°F | 70°F | 1024.9 hPa | 50°F |
Wind History for Menominee, MI
(wind in knots) EDIT (on/off) Help| 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 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 | |
| Last 24hr | NE | NE | NW | N G16 | N G15 | N | N | N | N | N | N | NW G8 | NW | N G12 | N | N G11 | NE | NE G14 | NE | NE G9 | NE | NE | NE | NE |
| 1 day ago | N | NW G14 | N G14 | NW | N | N | NW | NW | NW | NW | NW | NW | N | N | N | N | NE G10 | E | E | E | SE | SE | NE | NE |
| 2 days ago | S | SE | SW | SW | W | W | W | W G9 | W G8 | NW | NW | N | NW | NW | NW | N | E | S G10 | W G17 | NW G13 | NW | NW G17 | NW G14 | N |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Menominee - Marinette Twin County Airport, MI | 24 mi | 2 hrs | ENE 6 | 10.00 mi | Overcast | 67°F | 50°F | 55% | 1025.1 hPa |
| Door County Cherryland Airport, WI | 24 mi | 2 hrs | ENE 6 | 10.00 mi | Mostly Cloudy | 66°F | 52°F | 61% | 1025.2 hPa |
Link to 5 minute data for KSUE
Wind History from SUE (wind in knots)
| 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | 12 AM | 1 AM | 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 | |
| Last 24hr | NE | Calm | Calm | Calm | N | NE | NE | NE | NE | NE | NE | NE | NE | NE | N | N | N | N | N | N | NE | NE | E | E |
| 1 day ago | NW | N | N | N | NE | NE | NE | Calm | Calm | Calm | Calm | Calm | NE | NE | E | NE | N | N | N | N | NE | Calm | NE | E |
| 2 days ago | S | S | SW | Calm | Calm | SW | W | W | W | NW | N | N | N | N | N | N | N | W | NW | NW | NW | NW | N |
Tide / Current Tables for
EDIT Weekend mode (on/off) (on/off) HelpTide / Current Tables for
EDIT (on/off) HelpWeather Map and Satellite Images
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GOES Local Image of 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 Green Bay, WI (19,4,5,8)
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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. |