Saturday, July11, 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 5:27AMSunset 8:36PM Saturday July 11, 2020 4:27 PM CDT (21:27 UTC) Moonrise 12:03AMMoonset 11:55AM Illumination 61% Phase: Waning Gibbous; Moon at 21 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- 306 Pm Cdt Sat Jul 11 2020
Through early evening..West wind 5 to 10 knots. Partly Sunny. Waves around 1 foot.
Tonight..South wind 5 to 10 knots veering west after midnight, then becoming north 10 to 15 knots early in the morning. Chance of showers and Thunderstorms in the late evening and overnight. Waves around 1 foot.
Sunday..Northeast wind 10 to 15 knots becoming north 15 to 20 knots in the late morning and afternoon. Chance of showers and Thunderstorms in the morning. Waves 3 to 4 feet.
Sunday night..North wind 10 to 15 knots easing to 5 to 10 knots after midnight, then becoming north 5 to 10 knots early in the morning. Mostly clear. Waves 3 to 4 feet subsiding to 1 to 3 feet early in the morning.
Monday..North wind 5 to 10 knots veering east late in the afternoon. Sunny. Waves 1 to 2 feet.
LMZ646 Expires:202007120900;;692279 FZUS53 KMKX 112007 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 306 PM CDT Sat Jul 11 2020 For waters within five nautical miles of shore on Lake Michigan LMZ646-120900-


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 112049 AFDMKX

Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 349 PM CDT Sat Jul 11 2020

SHORT TERM.

Tonight through Tomorrow Night . Forecast Confidence is medium to high:

Quiet weather will continue through late afternoon. Still watching upstream storms in MN and IA. Latest trends have been southward for this activity. The strongest storms in the leading edge would track south of Wisconsin given current storm motions. Latest meso models have been trending that way as well. Still a chance for more development farther north that would impact the southwest forecast area, but possibly not until mid/late evening. Best chance for severe storms will be with the first round, with less available instability by late evening. Will keep monitoring trends into the evening.

Any lingering showers/storms should wind down in the southern forecast area by late tonight. Dry weather is then expected Sunday and Sunday night as high pressure builds into the area. Temps will remain around normal through tomorrow.

LONG TERM.

Monday through Friday Night . Forecast Confidence is moderate

Upper lvl ridging and anticyclonic curvature aloft will remain in place on Monday. Sfc high pressure will keep winds out of the north to start the day and dew points should stay low. During the late afternoon hours and overnight into Tuesday however, the high will shift eastward allowing southerly flow and deeper moisture to return out ahead of an approaching cold front. Most of Tuesday should remain dry for southern Wisconsin, but showers and storms look possible along the front starting Tuesday night into Wednesday.

Uncertainty in the timing and progression of this front remains high at the moment. Canadian and ECMWF solutions move this front through Wednesday morning, leading to high pressure and drier conditions for the latter half of Wednesday and into Thursday. The GFS however stalls the front over southern WI during the morning hours on Wednesday and blows up another round of convection along the front Wednesday afternoon. The front then slowly sinks southward from then into the day on Thursday, keeping at least a lingering scattered shower and thunderstorm chance into Thursday. With some of the uncertainty present, but at least some agreement that the front will indeed approach Tuesday night into Wednesday morning, likely pops have been included for Tuesday night into Wednesday morning, with chance pops during subsequent times.

AVIATION(21Z TAFS).

Still watching the potential for storms this evening into early tonight, with the best chance in areas along and south of a line from Lone Rock to Kenosha. Current timing would storms into the west/southwest forecast area around 02-03Z. Could see additional development ahead of the current line of storms and/or an increase in speed . so radar trends will continue to be monitored.

Any lingering showers/storms should wind down in the southeast by late tonight, with dry weather expected Sunday.

MARINE.

Low pressure will drop south across Lake Michigan this afternoon and evening. West to northwest winds ahead of the low will transition to northerly late today into Sunday behind the low. The northerly winds will be on the breezy side. Lighter winds are expected to develop Monday as high pressure moves overhead.

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

Tonight/Sunday and Aviation/Marine . DDV Sunday Night through Saturday . CMiller


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KNSW3 - Kenosha, WI 50 mi147 min W 11 G 16 79°F 1010.8 hPa (-1.1)
MLWW3 - Milwaukee, WI 54 mi47 min WNW 8 G 9.9 84°F

Wind History for Calumet Harbor, IL
(wind in knots)    EDIT      (on/off)   Help
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G12
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G14
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G19
W6
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SE3
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G10
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G11
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G16
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NE7
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G10
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S6
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G7
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G14
SE12
G15
SW6
G11
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G17

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Janesville-Rock County, WI15 mi42 minNW 710.00 miMostly Cloudy82°F66°F58%1011.8 hPa
Burlington Municipal Airport, WI24 mi52 minN 010.00 mi81°F66°F60%1011.5 hPa

Link to 5 minute data for KJVL

Wind History from JVL (wind in knots)
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Last 24hrNW16
G22
NW13
G18
NW10NW6W5NW6NW5W3CalmCalmW3CalmCalmCalmW5CalmW5W7W10SW7W5W11W9NW7
1 day agoS5NE4CalmN12
G20
N5E5E7CalmCalmNW5NW3NW6N9NW6----------NW10
G15
N12
G19
NW12
G17
NW10
G17
NW13
G20
2 days agoS8SW5E3E5CalmCalmSE3CalmCalmE4CalmCalmCalm3CalmCalm33CalmSE7E7E6SE8
G20
S8

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 (17,4,5,8)
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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.