Friday, August14, 2020
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Marine Weather and Tides
Berlin, WI

Version 3.4
NOTICE
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 5:56AMSunset 8:01PM Friday August 14, 2020 9:22 AM CDT (14:22 UTC) Moonrise 1:10AMMoonset 4:55PM Illumination 19% Phase: Waning Crescent; Moon at 25 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 Am Cdt Fri Aug 14 2020
Rest of today..East wind 5 to 10 knots backing northeast late in the afternoon. Patchy fog late in the morning. Waves around 1 foot.
Tonight..Northeast wind 5 to 10 knots veering east late in the evening, then becoming southwest after midnight becoming south early in the morning. Mostly clear. Waves around 1 foot.
Saturday..Southwest wind 5 to 10 knots veering northwest late in the afternoon. Slight chance of Thunderstorms through the day. Chance of showers in the afternoon. Waves around 1 foot.
Saturday night..Northwest wind 5 to 10 knots veering north late in the evening, then becoming north 5 to 10 knots after midnight backing northwest early in the morning. Partly cloudy. Waves around 1 foot.
LMZ643 Expires:202008142200;;439346 FZUS53 KMKX 141406 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 906 AM CDT Fri Aug 14 2020 For waters within five nautical miles of shore on Lake Michigan LMZ643-142200-


7 Day Forecast for Marine Location Near Berlin, WI
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location: 43.93, -89     debug


Area Discussion for - Milwaukee/Sullivan, WI
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FXUS63 KMKX 140836 AFDMKX

Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 336 AM CDT Fri Aug 14 2020

SHORT TERM. (Issued 335 AM CDT Fri Aug 14 2020)

Today through Saturday:

Patchy dense fog over the east will continue through sunrise, and then rapidly thin and diminish. Pockets of visibilities of one quarter mile or less will accompany the dense fog.

High pressure will influence our weather for one more day. As a result, fair conditions and light winds are expected with highs in the mid-80s today.

Clouds will increase overnight tonight as a cold front approaches from the west. We'll likely see a broken line of showers and a rumble of thunder or two approach our western counties in the early morning hours on Saturday. Models then depict much of this shower activity dissipating and skipping most of southern WI through the morning hours. During Saturday afternoon, redevelopment of showers along the front looks possible, with the best chance for thunder over far SE WI. Highs on Saturday will be in the upper 70s to low 80s for most as the passage of the cold front will blunt temperatures a bit. In far SE WI, temps will reach a bit higher owing to the cold front passing later in the day there.

CMILLER

LONG TERM. (Issued 335 AM CDT Fri Aug 14 2020)

Saturday night and Sunday:

Removed most precipitation chances Saturday evening across the eastern areas as first cold front is expected to be moving east at a slightly faster clip. Hence dry conditions are expected most if not all areas Saturday evening with a northwest breeze. A sharpening mid-level short wave rotating around long wave troffing shifting eastward across southern Canada will usher a secondary stronger cold front across southern Wisconsin late Saturday night and Sunday. Atmospheric moisture with this front appears to be a little more robust compared to 24 hours ago, but still not quite enough to tip the scales on adding small pops. Future shifts may be adding small pops including thunder for late Saturday night into Sunday. Most of the day Sunday will be dry with breezy west to northwest winds and temps recovering into the 70s under partly cloudy conditions.

Sunday night through Thursday:

Large upstream high pressure ridge over western CONUS into southern Canada will result in slightly cooler and drier northwest steering flow for the first half of this period, through Tuesday. 925H temps cool a couple degrees to around 17C, so after a cool start to the day, temps should rebound back into the mid to upper 70s. Onshore breezes will keep lakeshore areas a few degrees cooler during the day. Passing weak atmospheric ripples may bring a period of clouds to the area Monday night into Tuesday, but no precipitation is expected.

Upstream ridge begins to slowly flatten through the latter half of the week, which should allow warmer temperatures to return. Medium range guidance in general agreement on passing low pressure to the north of the Great Lakes Tuesday night and Wednesday carrying a backdoor cold front across Lake Michigan and Wisconsin. This front will be weakening as it moves south during this period but there may be just enough moisture and convergence to trigger a few showers. However too much uncertainty at this time to add small pops.

MBK

AVIATION. (Issued 335 AM CDT Fri Aug 14 2020)

For the 12Z TAFs:

Areas of morning fog along the lakeshore will dissipate as the morning sun begins the daytime heating cycle. Then VFR cigs and vis are expected today as high pressure will promote relatively clear skies with a few passing high clouds. Winds will light out of the southeast.

CMILLER

MARINE. (Issued 335 AM CDT Fri Aug 14 2020)

High pressure will influence weather over Lake Michigan for one more day. Expect fair conditions today with light easterly winds becoming northerly during the afternoon. On Saturday, a cold front will approach from the west, bringing chances for showers and storms over the lake mainly during the late morning hours and into the afternoon. Winds will become southeasterly ahead of the front on Saturday morning, then come around to northwesterly after the front passes in the afternoon. A period of gusty northwesterly winds looks possible late Sunday afternoon and into the evening.

CMILLER

MKX WATCHES/WARNINGS/ADVISORIES. WI . None. LM . None.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SGNW3 - Sheboygan, WI 70 mi22 min NNE 6 G 7 68°F
PWAW3 - Port Washington, WI 71 mi42 min ENE 2.9 G 4.1 74°F 1019 hPa

Wind History for Kewaunee MET, WI
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wautoma, Wautoma Municipal Airport, WI18 mi26 minN 010.00 miFair72°F62°F71%1017.9 hPa
Wittman Regional Airport, WI23 mi29 minE 410.00 miFair75°F63°F66%1016.9 hPa

Link to 5 minute data for KY50

Wind History from Y50 (wind in knots)
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SE6S74SE8S8S8S7E3E3E3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
1 day agoSE5SE5S4S6S7S7SE6SE74SE4SE3SE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE4
2 days agoW4W7W8NW9W8W56W3W5W4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

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
Wind Forecast for Milwaukee/Sullivan, WI (10,2,3,4)
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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 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.