Saturday, January25, 2020
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Marine Weather and Tides
Darien, 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 7:15AMSunset 5:01PM Saturday January 25, 2020 9:20 PM CST (03:20 UTC) Moonrise 9:00AMMoonset 6:48PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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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LMZ646 Wind Point Wi To Winthrop Harbor Il- 906 Pm Cst Sat Jan 25 2020
Rest of tonight..West wind 10 to 15 knots. Slight chance of drizzle and snow through the night. Waves around 1 foot.
Sunday..West wind 10 to 15 knots. Cloudy. Waves around 1 foot.
Sunday night..West wind 10 to 15 knots becoming northwest 5 to 10 knots after midnight. Cloudy. Waves around 1 foot.
Monday..Northwest wind 5 to 10 knots rising to 10 to 15 knots late in the morning, then becoming northwest 10 to 15 knots early in the afternoon easing to 5 to 10 knots late in the afternoon. Mostly cloudy. Waves around 1 foot. Wave heights are for ice free areas.
LMZ646 Expires:202001261100;;522078 FZUS53 KMKX 260306 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 906 PM CST Sat Jan 25 2020 For waters within five nautical miles of shore on Lake Michigan LMZ646-261100-


7 Day Forecast for Marine Location Near Darien, WI
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location: 42.6, -88.75     debug


Area Discussion for - Milwaukee/Sullivan, WI
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FXUS63 KMKX 260313 AAB AFDMKX

Area Forecast Discussion . UPDATED National Weather Service Milwaukee/Sullivan WI 913 PM CST Sat Jan 25 2020

UPDATE.

We are seeing periods of light snow across southern WI due to cyclonic flow aloft and just enough moisture to saturate into the snow growth zone. With dry air just above it, there may be drizzle at times when we lose ice crystals. The clouds are keeping temperatures mild tonight, with min temps generally right around the freezing mark. I made slight adjustments upward. This means that freezing drizzle is a possibility, but will not be a widespread problem.

MARINE.

Modest west to northwest winds will prevail tonight through Sunday night as low pressure slowly moves across southeast Canada. Light winds and low wave heights are expected to continue at least into the middle of next week.

PREV DISCUSSION. (Issued 553 PM CST Sat Jan 25 2020)

UPDATE .

No change to the forecast for tonight.

AVIATION(00Z TAFS) .

MVFR ceilings around 1500 ft will persist through the night and likely through Sunday. Near the lake Sunday, there should be slightly higher ceilings that develop, around 2500 ft, and possibly a temporary break in the clouds all together. There may be some intermittent drizzle or flurries this evening, especially toward east central WI. Temperatures right around freezing should keep pavement from becoming icy, but if temps drop a little lower than expected, light ice is possible.

PREV DISCUSSION . (Issued 314 PM CST Sat Jan 25 2020)

SHORT TERM .

Tonight and Sunday . Forecast Confidence is high.

Just a couple narrow bands of snow showers over far srn WI at this time. Otherwise flurries or patchy drizzle will linger this afternoon and possibly into the evening.

The upper low over ern Lower MI will move across the lower Great Lakes tnt, while a vorticity maximum just north of Lake Superior will move swd into ne WI, then ewd to the nrn portion of Lower MI by 12Z Sun. Went with slight chances of lgt snow with this feature for east central WI for the early morning hours. Otherwise light to modest wnwly winds, cloudy skies and relatively mild temps will prevail tnt-Sun.

LONG TERM .

Sunday Night through Friday . Forecast Confidence Medium.

A disorganized pattern is setting up for this week. In the upper levels there are multiple weak waves moving through the CONUS with the primary storm tracks remaining in the southern CONUS. For southern Wisconsin, the upper level waves that move through will be lacking moisture. Low cloud cover remains persistent throughout the week and light snowfall or drizzle could be possible as the upper level shortwaves move through the Great Lakes Region. No accumulating precipitation is expected from any of the weak waves that move through this week.

Mid level moisture returns at the end of the week ahead of a more robust low pressure system moving through the Great Lakes Region late this week. Temperatures will remain above average with highs in the mid to upper 30s and lows in the low to mid 20s.

AVIATION(18Z TAFS) .

Cigs will range from 600-1900 feet from this afternoon through Sunday. The light snow with vsbys of 1-3SM will come to an end over far srn WI by late afternoon.

MARINE .

A Dense Fog Advisory is in effect for the northern one third of Lake MI until 4 PM CST today. The fog will continue to dissipate toward evening. Otherwise, modest west to northwest winds will prevail tonight into Sun-Sun nt.

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

Update . Cronce Tonight/Sunday and Aviation/Marine . Gehring Sunday Night through Saturday . Patterson


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KNSW3 - Kenosha, WI 50 mi20 min W 7 G 9.9 35°F 1011.2 hPa (+0.7)

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Janesville-Rock County, WI15 mi35 minWNW 810.00 miOvercast36°F35°F100%1011.8 hPa
Burlington Municipal Airport, WI24 mi25 minWNW 610.00 miOvercast33°F32°F95%1011.2 hPa

Link to 5 minute data for KJVL

Wind History from JVL (wind in knots)
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Last 24hrNW3N4NW5NW3NW4NW3NW4W5W4W4W5W6W8W8W9W10W11NW11
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W11W10--W10W6W8
1 day agoE6E6E5E7E7NE7NE8NE7NE8NE8NE8NE8NE6NE6NE5NE9NE6N4NE7N6N7N5CalmCalm
2 days agoS10S9
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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 Midwest    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 (22,6,7,8)
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Ground Weather Radar Station Milwaukee, WI
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weather_mapweather_map weather_map

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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.