Marine Forecasts

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7 Day Forecast for Marine Location Near Two Rivers, WI

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Area Discussion for - Green Bay, WI

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Fxus63 kgrb 241924 afdgrb area forecast discussion national weather service green bay wi 224 pm cdt Sat aug 24 2019 forecast discussion for routine afternoon forecast issuance Synopsis Issued at 224 pm cdt Sat aug 24 2019 another quiet day tomorrow, then some showers and thunderstorms Monday into Monday night. Seasonably cool and mainly dry weather will settle into the area for the latter part of the work week. Slow progression of the large scale pattern is expected for the next few days. That will allow the upper ridge presently across the area to shift to the east coast, while an amplifying trough pushes east across the plains. The trough will slow mid-week as an upper low closes off over western ontario, then begin to lift toward northeast canada late in the week. The expected large scale pattern is probably more typical of early autumn than late summer. Though day-to-day temperature variations are expected, readings will generally be AOB normal. The main precipitation event will be tied to the passage of a frontal system through the area Monday and Monday night. While a widespread significant rainfall is likely during that time frame, only a few rounds of scattered light showers are expected during the rest of the period. The result will probably be near to slightly below normal amounts for most locations. Short term Tonight and Sunday issued at 224 pm cdt Sat aug 24 2019 the latest rap analysis and satellite radar imagery show high pressure centered over northern ontario but stretching across much of the western great lakes early this afternoon. Onshore winds and daytime heating have contributed to a widespread CU field across the region. Temperatures are running a degree or two warmer than yesterday. Looking upstream, the next system is moving slowly over the plains with a narrow moisture channel extending from the gulf coast to north dakota. Because of the strong high over the great lakes, this system will be slow to approach the area. So the main forecast concerns continue to revolve around clouds and temps for tonight and Sunday. Tonight... The center of the sprawling high pressure system will slowly shift east to the eastern great lakes, northeast ontario and quebec. The pressure gradient will tighten somewhat with wind trajectories remaining out of the southeast. 1000-850mb winds are projected to remain until 20 kts, which usually indicate surface winds will decouple. But with a little more wind in the boundary layer, lows should be a little warmer than last night, and range from the low 40s north to mid 50s over the southern fox valley. Clouds should dissipate with loss of heating early this evening.

But a few clouds may also drift into northeast wi from off lake michigan late tonight. Sunday... High pressure will continue to slowly drift away from the region while the system over the plains moves into the mississippi valley. Trajectories out of the southeast will continue to provide a steady stream of dry air in the mid and lower levels. However, forecast soundings and the CU rule indicate should see ample fair weather clouds build again by late morning. Low level temps continue to warm, which should put highs in the low to middle 70s. Long term Sunday night through Saturday issued at 224 pm cdt Sat aug 24 2019 the main long-term forecast issue is honing in on the timing of precipitation with the frontal system crossing the area at the start of the work week. Overall, the 12z guidance trended slower with the arrival of the precipitation and with the timing of when the bulk of the rain will fall. Adjusted the forecast (pops and qpf) accordingly. The southwest portion of the forecast area was included in the marginal risk of severe weather on the morning spc swody3 product. The 12z guidance suite indicated limited destabilization will occur during the day, so at this point the risk of severe storms does not appear great. Deep westerly flow behind the front will support temperatures a little above normal on Tuesday, then readings will drop to below normal for a couple days as the large-scale upper trough settles over the region. Scattered light showers will also be possible at times, especially across the north. The default forecast initialization grids based on a broad-based blend of guidance products seemed reasonable, so no significant changes were necessary. Aviation For 18z TAF issuance issued at 1155 am cdt Sat aug 24 2019 scattered to broken fair weather clouds between 3500 and 4500 ft can be expected to persist through the afternoon. Some clearing via lake breeze is likely to occur from east to west, starting along the lakeshore early this afternoon, and moving inland to the fox valley by late afternoon. Skies will become mostly clear this evening as the clouds dissipate. A few more lake clouds may drift inland along the lakeshore late tonight, before fair weather clouds become more widespread again by around 15z Sunday. Grb watches warnings advisories None. Synopsis... ... .Skowronski short term... ..Mpc long term... ... Skowronski aviation... ... .Mpc

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
KWNW3 - 9087069- Kewaunee, WI	22 mi	59 min	SE 6 G 9.9	69°F			1025.8 hPa
SGNW3 - Sheboygan, WI	29 mi	53 min	SE 8 G 8.9	67°F			1026.3 hPa (-0.7)	53°F
45014	46 mi	53 min	SE 7.8 G 7.8	74°F	70°F		1026.1 hPa

Wind History for Kewaunee MET, WI

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Manitowoc, Manitowoc County Airport, WI	6 mi	57 min	SSE 10	10.00 mi	Fair	68°F	55°F	63%	1026.6 hPa

Link to 5 minute data for KMTW

Wind History from MTW (wind in knots)

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Tide / Current Tables for

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Tide / Current Tables for

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Weather 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

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Wind Forecast for Green Bay, WI (15,3,4,5)

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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.