Tuesday, September29, 2020
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Marine Weather and Tides
Sheboygan Falls, WI

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 6:45AMSunset 6:36PM Tuesday September 29, 2020 9:14 PM CDT (02:14 UTC) Moonrise 6:11PMMoonset 4:16AM Illumination 95% Phase: Waxing Gibbous; Moon at 13 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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LMZ643 Sheboygan To Port Washington Wi- 906 Pm Cdt Tue Sep 29 2020
.small craft advisory in effect from Wednesday morning through Wednesday evening...
Rest of tonight..West wind 10 to 15 knots. Slight chance of showers just before midnight. Waves 1 to 2 feet.
Wednesday..West wind 10 to 15 knots with gusts to around 20 knots rising to 15 to 20 knots late in the morning, then veering northwest with gusts to around 30 knots early in the afternoon becoming 10 to 20 knots with gusts to around 30 knots late in the afternoon. Chance of showers and slight chance of Thunderstorms. Waves 1 to 2 feet building to 2 to 4 feet late in the afternoon.
Wednesday night..West wind 15 to 20 knots with gusts to around 30 knots becoming northwest 10 to 15 knots with gusts to around 20 knots after midnight. Slight chance of showers and Thunderstorms through around midnight. Waves 1 to 2 feet.
Thursday..Northwest wind 10 to 15 knots becoming north 15 to 20 knots in the afternoon. Slight chance of waterspouts through the day. Chance of showers through the day. Slight chance of Thunderstorms in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet late in the afternoon.
LMZ643 Expires:202009301000;;571868 FZUS53 KMKX 300206 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 906 PM CDT Tue Sep 29 2020 For waters within five nautical miles of shore on Lake Michigan LMZ643-301000-


7 Day Forecast for Marine Location Near Sheboygan Falls, WI
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location: 43.73, -87.83     debug


Area Discussion for - Milwaukee/Sullivan, WI
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FXUS63 KMKX 292052 AFDMKX

Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 352 PM CDT Tue Sep 29 2020

SHORT TERM. (Issued 353 PM CDT Tue Sep 29 2020)

Tonight through Thursday:

A few showers will swing through through early evening as a shortwave moves through, with some clearing possible later tonight.

Shortwaves will then move through early Wednesday and then again Wednesday night into Thursday, bringing a couple rounds of showers to southern Wisconsin. The best chance for showers tomorrow will be during the morning into early afternoon, with the best chance Thursday during the afternoon. Not out of the question for a rumble or two of thunder both days. Below normal temperatures will continue, with some frost possible Thursday night.

DDV

LONG TERM. (Issued 353 PM CDT Tue Sep 29 2020)

Friday through Tuesday:

High pressure will bring a break to the showery pattern on Friday, with some sunshine even possible. A cool airmass will be in place though, so highs will struggle up to around 50. Frost will be possible again Friday night.

Models are in decent agreement showing a stronger system moving through the area later Saturday into Sunday. This would likely bring higher chances of rain with it along with more clouds and continued below normal temps.

Early next week looks mainly dry with moderating temperatures.

DDV

AVIATION. (Issued 353 PM CDT Tue Sep 29 2020)

Ceilings are mainly VFR this afternoon, with a couple MVFR observations lingering. Clouds will likely begin to decrease by late evening, with a period of clearing possible overnight. Will see a few showers mainly north of Madison and Milwaukee this afternoon into early evening. A shortwave will likely then bring showers to much of southern Wisconsin Wednesday, as another wave pushes through. A rumble or two of thunder is not out of the question tomorrow. Could see some lower ceilings again with this next wave.

DDV

MARINE. (Issued 353 PM CDT Tue Sep 29 2020)

Low pressure will pass by just north of Lake Michigan tonight into Wednesday. Breezy west to northwest winds and scattered showers are expected across the Lake tonight into Wednesday. The strongest winds will likely be from mid-morning Wednesday into mid-evening. A Small Craft Advisory has been issued for this period and gusts could approach gale force across the southern half of the lake.

A strong cold front will then move through the region late Wednesday bringing brisk north to northwesterly winds across the lake through Friday along with more shower chances through Thursday. The colder air moving over the warmer lake waters will bring a potential for waterspouts on Thursday and Friday.

DDV

MKX WATCHES/WARNINGS/ADVISORIES. WI . None. LM . Small Craft Advisory . LMZ643-LMZ644-LMZ645-LMZ646 . 10 AM Wednesday to 10 PM Wednesday.



Visit us at weather.gov/milwaukee

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SGNW3 - Sheboygan, WI 7 mi74 min SW 8.9 G 9.9 54°F
PWAW3 - Port Washington, WI 24 mi34 min WSW 5.1 G 8 55°F 1008.1 hPa
45013 44 mi44 min SW 7.8 G 12 54°F 50°F1 ft1007.8 hPa
MLWW3 - Milwaukee, WI 50 mi34 min SW 6 G 8 54°F

Wind History for Kewaunee MET, WI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sheboygan County Memorial Airport, WI4 mi21 minSW 410.00 miOvercast53°F46°F80%1006.4 hPa

Link to 5 minute data for KSBM

Wind History from SBM (wind in knots)
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Last 24hrW5W5SW4SW4SW5W4W5W5W5W6W6W11W7W8W7W9SW11
G17
W8W6SW10SW5SW6SW5SW4
1 day agoW6SW5W3SW3S4SW5SW5SW4CalmSW3W3W6W5W75NW7W6W5W6W7W4NW4W4W5
2 days agoS8S11SW14
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NW9W43SW5W7W6W11
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W6SW6SW5SW5SW5SW8

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_A
GEOS 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
Ground Weather Radar Station Green Bay, WI
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weather_mapweather_map weather_map


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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 numerous 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.