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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 5:14AM | Sunset 8:24PM | Friday May 24, 2019 8:08 AM CDT (13:08 UTC) | Moonrise 12:47AM | Moonset 10:17AM | Illumination 70% |  |
LMZ522 Expires:201905241615;;374327 Fzus53 Kgrb 240902 Nshgrb Nearshore Marine Forecast National Weather Service Green Bay Wi 402 Am Cdt Fri May 24 2019 For Waters Within Five Nautical Miles Of Shore On Lake Michigan Lmz521-522-241615- 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- 402 Am Cdt Fri May 24 2019
Today..E wind 10 to 15 kts. Waves 2 ft or less. Patchy fog. A chance of showers. A slight chance of Thunderstorms in the afternoon.
Tonight..SE wind 5 to 10 kts veering S after midnight. Waves 2 ft or less. Patchy fog. Showers likely and a chance of Thunderstorms in the evening. A chance of showers after midnight.
Saturday..SW wind 10 to 20 kts. Waves 1 to 3 ft. Partly cloudy.
Saturday night..W wind 10 to 15 kts veering nw 5 to 10 kts in the late evening and overnight. Waves 1 to 3 ft. Mostly clear.
Today..E wind 10 to 15 kts. Waves 2 ft or less. Patchy fog. A chance of showers. A slight chance of Thunderstorms in the afternoon.
Tonight..SE wind 5 to 10 kts veering S after midnight. Waves 2 ft or less. Patchy fog. Showers likely and a chance of Thunderstorms in the evening. A chance of showers after midnight.
Saturday..SW wind 10 to 20 kts. Waves 1 to 3 ft. Partly cloudy.
Saturday night..W wind 10 to 15 kts veering nw 5 to 10 kts in the late evening and overnight. Waves 1 to 3 ft. Mostly clear.
LMZ522
7 Day Forecast for Marine Location Near Howard, WI
Hourly EDIT Helplocation: 44.56, -88.1 debug
Area Discussion for - Green Bay, WI
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus63 kgrb 241125 afdgrb area forecast discussion national weather service green bay wi 625 am cdt Fri may 24 2019 updated aviation portion for 12z TAF issuance Short term Today... Tonight... And Saturday issued at 414 am cdt Fri may 24 2019 showers will move north into the forecast area today as warm air overruns a warm front well to our south. The best rainfall should be across central and east central wisconsin. The clouds and precipitation and winds blowing over lake michigan will hold temperatures down 5 to 10 degrees below normal. Elevated thunderstorms are expected during the late afternoon and evening hours as dewpoints in the teens at 850mb stream northward from the southern plains. The elevated instability could be enough to produce a few strong or severe storms with large hail in the fox valley and lakeshore counties. The showers will end later tonight as a pacific cold front goes by. It shouldn't even be called a cold front, as temperatures Saturday will be higher than today due to abundant sunshine and downslope west winds. Highs could reach 80f for the first time this year in some areas. Long term Saturday night through Thursday issued at 414 am cdt Fri may 24 2019 forecast concerns continue to revolve around precip potential through the holiday weekend into the middle of next week. Although there will be breaks in the precip chances at times, southwest flow aloft will continue during this period, with the western great lakes positioned between the beefy sub-tropical ridge over the southeast conus, and an upper low over hudson bay. The result will be a continuation of the wet pattern that has been in place over the past several months. Will take a blend of the GFS nam on Saturday night, followed by a blend of the gfs ECMWF thereafter. Saturday night through Sunday night... A cold front will be in the process of exiting northeast wi early on Saturday evening. The models project some instability lingering over east-central wi along the front, but the GFS looks considerably overdone, mostly due to unrealistically high dewpoints. Still though, ml capes over 500 |
j kg suggest some potential for a storm along the boundary Saturday evening. Ample mid-level dry air will keep storm potential isolated at best. Weak high pressure then will build into the region later Saturday night and hang around on Sunday. Temps on Sunday will be cooler, but with no threat of precip. As energy ejects out of the southwest CONUS trough, the front will return north on Sunday night. Rain chances will therefore return to central wi late in the night. Rest of the forecast... A surge of precip will lift across the area on Monday with the passage of a warm front. Some elevated instability will accompany the front, though magnitudes look rather marginal for severe weather. Forecasting frontal positions becomes a rather dicey proposition thereafter due to presence of clouds precip and uncertainty of wind directions. Southwest flow will remain aloft on Monday night into Tuesday, which will be favorable for precip at times, though perhaps not quite as widespread as on Monday. Then a second surge of precip looks possible on Tuesday night as the southwest CONUS trough ejects across the great lakes. Because of the uncertainty of instability, potential for heavy rainfall looks higher than severe weather at this time. A period of cooler weather is possible in the wake of the system for middle to end of next week. Aviation For 12z TAF issuance issued at 625 am cdt Fri may 24 2019 MVFR ceilings are expected in most places today, with showers moving up from the south. Scattered thunderstorms are possible during the late afternoon and evening. Ceilings and visibilities will likely drop into ifr range tonight with showers ending from west to east. Lifr conditions are possible in some areas late tonight. Skies will clear Saturday withVFR conditions and gusty west surface winds. Grb watches warnings advisories None. Short term... ..Rdm long term... ... Mpc aviation... ... .Rdm |
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 |
| KWNW3 - 9087069- Kewaunee, WI | 33 mi | 38 min | ESE 1 G 2.9 | 46°F | 1020.8 hPa | |||
| MN4 - 9087088 - Menominee, MI | 46 mi | 38 min | ESE 7 G 8.9 | 50°F | 54°F | 1021.1 hPa |
Wind History for Kewaunee MET, WI
(wind in knots) EDIT (on/off) Help| 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 | 7 AM | |
| Last 24hr | W G21 | W G18 | W G23 | W G22 | W G22 | W G27 | W G22 | W G20 | W G18 | W G21 | W G20 | NW G17 | NW G13 | NW G8 | NW G8 | NW | NW G4 | N G11 | NE G11 | NE G8 | NE G6 | NE | NE | -- |
| 1 day ago | E | E | NE G6 | SE G8 | S G16 | SE G20 | S G17 | S G17 | S G24 | S | S | S | S | -- | S | S | SW G7 | S | SW G6 | S | W G10 | W | SW | SW G11 |
| 2 days ago | NE G9 | NE G8 | NE G11 | NE G11 | NE G11 | NE G12 | NE G12 | NE G13 | NE | NE G10 | NE | NE G13 | NE G8 | E G13 | E | E | E | E G21 | E G17 | SE G10 | E G16 | E | E G18 | SE |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Green Bay, Austin Straubel International Airport, WI | 6 mi | 75 min | ESE 7 | 10.00 mi | Overcast | 52°F | 48°F | 86% | 1021.4 hPa |
Wind History from GRB (wind in knots)
| 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 | 7 AM | 8 AM | |
| Last 24hr | W G23 | W G26 | W G26 | W G27 | W G32 | W G21 | W G24 | W | NW G23 | W G25 | W G20 | NW | NW | W | W | NW | N | N | N | N | Calm | NE | E | E |
| 1 day ago | SE G20 | SE G27 | SE G26 | SE | SE G20 | SE | SE | SE | SE | E | SE | S G21 | S | S | Calm | S | SW | SW | W | W | S | SW | SW | W G22 |
| 2 days ago | NE | NE | E | E G22 | E G22 | E G20 | E G21 | E | E | E | E | E | E | E | E G18 | E G23 | E | S | E | E G25 | W G30 | SE G17 | E | E G19 |
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 (9,2,3,4)
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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. |