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Marine Weather and Tides
Version 3.4 |
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17. 1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support. |
Sunrise 6:07AM | Sunset 7:37PM | Wednesday April 14, 2021 6:23 AM CDT (11:23 UTC) | Moonrise 7:28AM | Moonset 10:20PM | Illumination 6% | ![]() |
LMZ521 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- 420 Am Cdt Wed Apr 14 2021
.small craft advisory in effect from late tonight through Thursday afternoon...
Today..W wind around 10 kts. Waves 2 ft or less. A chance of rain and snow showers.
Tonight..NW wind 10 to 15 kts, increasing to 15 to 25 kts after midnight. Waves 2 ft or less building to 3 to 5 ft after midnight. A chance of rain and snow showers.
Thursday..N wind 15 to 25 kts decreasing to 10 to 15 kts early in the afternoon. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. Partly Sunny.
Thursday night..N wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy.
.small craft advisory in effect from late tonight through Thursday afternoon...
Today..W wind around 10 kts. Waves 2 ft or less. A chance of rain and snow showers.
Tonight..NW wind 10 to 15 kts, increasing to 15 to 25 kts after midnight. Waves 2 ft or less building to 3 to 5 ft after midnight. A chance of rain and snow showers.
Thursday..N wind 15 to 25 kts decreasing to 10 to 15 kts early in the afternoon. Waves 3 to 5 ft subsiding to 1 to 3 ft in the afternoon. Partly Sunny.
Thursday night..N wind 10 to 15 kts. Waves 1 to 3 ft. Partly cloudy.
LMZ521 Expires:202104141615;;531496
FZUS53 KGRB 140920
NSHGRB
Nearshore Marine Forecast
National Weather Service Green Bay WI
420 AM CDT Wed Apr 14 2021
For waters within five nautical miles of shore on Lake Michigan
LMZ521-522-541>543-141615-
7 Day Forecast for Marine Location Near Menominee, MI
Hourly EDIT Help
location: 45.12, -87.62 debug
Area Discussion for - Green Bay, WI
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionFXUS63 KGRB 140905 AFDGRB
Area Forecast Discussion National Weather Service Green Bay WI 405 AM CDT Wed Apr 14 2021
Forecast discussion for routine morning forecast issuance
SHORT TERM. Today . Tonight . and Thursday Issued at 405 AM CDT Wed Apr 14 2021
Precipitation trends and type will be the main forecast concerns.
An upper level low was situated over far northwest WI early this morning, with a well-defined short-wave trough moving through western WI. This wave was generating an area of light snow, which was moving into central WI at forecast issuance. Have increased pops to likely for a few hours in central WI, where a quick dusting to a half inch of snow is possible on grassy surfaces through daybreak. This short-wave should quickly exit far northeast WI early this morning.
The upper low will move east through far northern WI this morning, then shift to the eastern Great lakes by Thursday. Rain and snow showers will continue across the region today, with the greatest likelihood of precipitation over far northeast WI. The focus should shift to eastern WI and the lakeshore counties tonight, in association with convergence along a surface trough, and the lingering upper level system. Models are attempting to generate some snow accumulations in far northeast WI, but our current thinking is that boundary layer temperatures will be a little too warm, resulting in mixed rain/snow. If temperatures end up a degree or two colder, we could see snow accumulations to around an inch in Florence, Marinette and northern Door counties. There could also be some patchy freezing drizzle over Vilas County late tonight, due to north flow picking up moisture off Lake Superior.
After the surface trough moves through, the pressure gradient is expected to increase, leading to gusty north winds late tonight into Thursday. the winds will be strongest near the lakeshore, where a Small Craft Advisory has been posted from late tonight through midday Thursday.
Abundant cloud cover and showers will hold temperatures down today, with highs only in the upper 30s to middle 40s. Lows tonight should drop into the upper 20s north, and lower to middle 30s elsewhere. Mainly dry conditions should return on Thursday, with some breaks in the clouds expected, especially in the afternoon. Highs should be in the 40s and lower 50s.
LONG TERM. Thursday Night Through Tuesday Issued at 405 AM CDT Wed Apr 14 2021
At the beginning of the period, the upper low will continue to move away from the area as weak 500mb ridging moves into the western Great lakes on Friday. Meanwhile, 500mb ridge across western North America will build over the weekend into the first half of next week, resulting in downstream troughing across central and eastern North America. At this time, upper level disturbances should pass north and south of the state on Saturday resulting in dry conditions. There are no real upper level features that would impact the area on Sunday.
Temperatures this weekend into Monday should be close to normal. However, the deepening trough across the eastern half of North America will result in temperatures trending below normal by the middle of next week. The next chance for any significant precipitation would be on Monday as a cold front drops south across the area. Most of the precipitation with this feature will be post frontal. Will need to watch this feature as the ECMWF is quicker dropping the front south compared to the GFS/Canadian model. A quicker arrival could impact high temperatures across the area on Monday and may need to bump up precipitation chances late Sunday night. The 6 to 10 day outlook from the Climate Prediction Center is indicating below normal temperatures across much of the central and eastern United States.
AVIATION. for 06Z TAF Issuance Issued at 1043 PM CDT Tue Apr 13 2021
Abundant cloud cover is expected through the TAF period as deep cyclonic flow persists across the western Great Lakes region. Clouds will continue to be a mix of VFR/MVFR with IFR possible at times with continued showers across the region. The best chance for showers will be across the north and west. Precipitation will mainly be snow overnight, then a mix of rain and snow again on Wednesday.
GRB WATCHES/WARNINGS/ADVISORIES. NONE.
SHORT TERM . Kieckbusch LONG TERM . Eckberg AVIATION . Kurimski
Weather Reporting Stations
EDIT (on/off)  Help NOTE: Click on distance to see the station location on a mapStations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
MN4 - 9087088 - Menominee, MI | 2 mi | 53 min | WSW 8.9 G 11 | 35°F | 50°F | 1017 hPa | 30°F | |
CBRW3 - Chambers Island, WI | 15 mi | 43 min | S 4.1 G 7 | 35°F | ||||
NPDW3 - Northport Pier at Death's Door WI | 36 mi | 43 min | WSW 1.9 G 2.9 | 35°F | 1017.9 hPa | |||
GBWW3 | 45 mi | 53 min | W 5.1 G 8 | 36°F | 1017 hPa | |||
KWNW3 - 9087069- Kewaunee, WI | 46 mi | 53 min | W 8 G 9.9 | 36°F | 1017.2 hPa |
Wind History for Menominee, MI
(wind in knots) EDIT (on/off)  Help7 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 | SW | SW | SW G21 | SW G15 | SW G19 | SW G16 | SW G16 | SW G18 | SW G16 | W G19 | SW G19 | SW | SW G8 | SW G10 | SW G13 | W | SW G9 | SW | W | SW G11 | SW | W G10 | SW | W G10 |
1 day ago | NE | NE | N | N G4 | N | N | SE | SW G13 | SW G13 | SE | S G11 | S | S | S | SW G16 | SW G14 | SW G12 | SW G13 | SW G11 | SW G10 | SW G10 | SW | SW | SW |
2 days ago | E G16 | N | NW | NE | NE | N | N | N | NE | NE | SW | S | S | SE | S | SE | SW | E | N | N | NE | NE | NW G5 | NE |
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 | 1 mi | 27 min | W 4 | 10.00 mi | Overcast | 34°F | 29°F | 82% | 1017.9 hPa |
Door County Cherryland Airport, WI | 23 mi | 27 min | W 7 | 10.00 mi | Overcast | 35°F | 28°F | 76% | 1017.9 hPa |
Link to 5 minute data for KMNM
Wind History from MNM (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 G16 | W G16 | W G17 | SW G17 | G16 | W G17 | SW G15 | W G18 | W | W | SW | W | SW | Calm | W | W | W | W | |||||
1 day ago | E | E | E | E | E | S | W | W | W | Calm | W | SW | SW | W | SW | W | SW | SW | SW | W | SW | |||
2 days ago | NE | N | NE | NE | E | NE | E | SE | Calm | SW | SW | SW | W | S | SE | Calm | Calm | Calm | NE | E | NE | Calm | NE |
Tide / Current Tables for
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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