Friday, August14, 2020
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Marine Weather and Tides
Twin Lakes, 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 5:58AMSunset 7:56PM Friday August 14, 2020 3:34 AM CDT (08:34 UTC) Moonrise 1:12AMMoonset 4:47PM Illumination 21% 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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LMZ646 Wind Point Wi To Winthrop Harbor Il- 306 Am Cdt Fri Aug 14 2020
Early this morning..Northeast wind 5 to 10 knots. Mostly clear. Waves around 1 foot.
Today..Northeast wind 5 to 10 knots veering east late in the morning, then backing northeast early in the afternoon becoming northeast 5 to 10 knots late in the afternoon. Sunny. Waves around 1 foot.
Tonight..Northeast wind 5 to 10 knots backing southwest early in the morning. Clear. Waves around 1 foot.
Saturday..West wind 5 to 10 knots veering northwest late in the morning, then veering northeast 5 to 15 knots early in the afternoon backing north 10 to 15 knots late in the afternoon. Chance of showers and Thunderstorms in the afternoon. Waves around 1 foot.
Saturday night..Northwest wind 5 to 10 knots becoming north 10 to 15 knots after midnight, then backing northwest early in the morning. Chance of showers and Thunderstorms through around midnight. Waves around 1 foot.
LMZ646 Expires:202008142100;;426476 FZUS53 KMKX 140806 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 306 AM CDT Fri Aug 14 2020 For waters within five nautical miles of shore on Lake Michigan LMZ646-142100-


7 Day Forecast for Marine Location Near Twin Lakes, WI
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location: 42.52, -88.26     debug


Area Discussion for - Milwaukee/Sullivan, WI
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FXUS63 KMKX 140202 AFDMKX

Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 902 PM CDT Thu Aug 13 2020

UPDATE. (Issued 902 PM CDT Thu Aug 13 2020)

The sfc ridge extending across the Great Lakes will linger over srn WI into Fri or Fri eve. Thus another pleasant night tonight and another warm day for Fri. A milder night is expected Fri nt as a milder and more humid airmass begins to move into the region.

Gehring

SHORT TERM. (Issued 315 PM CDT Thu Aug 13 2020)

Tonight through Friday night:

Looks like we will get another day of dry and quiet weather through Friday as the surface high gradually slides east and an upper-level ridge continues to build across the region. Increasing southeasterly flow will advect warmer temps and more moisture into the area with highs in the mid to upper 80s and dewpoints climbing into the mid 60s. Meanwhile, a broad upper-level trough will be digging across Central Canada and the Northern Plains and begin to move into the Upper Midwest later on Friday bringing a more active pattern into the first half of the weekend.

Wagner

LONG TERM. (Issued 327 PM CDT Thu Aug 13 2020)

Saturday through Thursday:

As the upper-level trough pushes further east on Saturday, it will drag a cold front across the region. Models have been fairly consistent over the past few runs with the timing and placement of the cold front across WI. Looks like the cold front will push through southern WI late Saturday morning/afternoon. With ample moisture (PWATs around 1.0-1.5 inches) streaming into the region combined with lift from the front itself, expecting to see increased shower chances on Saturday. However, QPF amounts are still in question as the GFS is trending drier while the ECMWF has a bit wetter, but portions of southern WI should see some rainfall.

In addition to the showers, there will be chances for thunderstorms to develop along the cold front. With the frontal passage progged to push through late morning/early afternoon, the environment may not have too much time to destabilize, but still expecting to see MLCAPE values around 1000-1500 J/kg, which would be sufficient for storms. With the better upper-level dynamics and more favorable deep layer shear remaining further north, not expecting too much in the way of stronger storms across southern WI. However, a few storms with gusty winds cannot be ruled out at this time, especially for areas in far southeastern WI that have more time to destabilize before the front's arrival or if the front tracks slower allowing for more widespread destabilization. Overall not to enthralled with storm chances on Saturday at this time, but will continue to monitor trends over the next few runs.

Otherwise, as northwesterly flow develops in the wake of the cold front, dry air will filter into the area for Sunday. Then, higher pressure is expected to build across the Upper Midwest on Sunday. This will bring a reinforcing front across the area later on Sunday and cooler conditions with highs in the 70s and lows in the 50s are expected for the early part of next week. By mid-week could see a weak disturbance makes its way across the western Great Lakes and bring some showers to the area, but due to its uncertainty this far out, confidence is not real high at this time.

Wagner

AVIATION. (Issued 902 PM CDT Thu Aug 13 2020)

For the 06Z TAFs:

Mostly clear skies and VFR conditions for Friday into Friday night.

Gehring

MARINE. (Issued 313 PM CDT Thu Aug 13 2020)

Dry and quiet marine conditions are expected again for Friday as an area of high pressure extending across the Great Lakes slowly pushes further east across southeastern Canada. Light to moderate east to northeasterly winds are expected until becoming more southeasterly Friday into Saturday. A cold front is then expected to push across the lake Saturday into Sunday morning with winds veering to the northwest. A period of gusty northwest winds will be possible on Monday as high pressure builds in behind the front.

Wagner

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


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KNSW3 - Kenosha, WI 24 mi34 min N 4.1 G 4.1 74°F 1017.3 hPa (-0.6)
45187 26 mi34 min N 1.9 G 3.9 74°F 74°F1 ft
WHRI2 - Waukegan Harbor, IL 26 mi94 min E 8 G 8.9 74°F
MLWW3 - Milwaukee, WI 39 mi24 min N 2.9 G 4.1 73°F
45174 42 mi24 min ENE 7.8 G 12 75°F 74°F2 ft1016.2 hPa70°F
45013 46 mi34 min NW 3.9 G 5.8 71°F 73°F1 ft1017.8 hPa (-0.9)

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burlington Municipal Airport, WI12 mi39 minN 00.75 miSky Obscured59°F58°F100%1017.9 hPa
Kenosha, Kenosha Regional Airport, WI18 mi41 minN 02.00 miFog/Mist64°F61°F90%1017.4 hPa
Chicago/Waukegan Regional Airport, IL22 mi39 minNNE 38.00 miFair64°F62°F93%1016.2 hPa

Link to 5 minute data for KBUU

Wind History from BUU (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmE4SE3E4E7SE6E10E9E7E7E6E3CalmCalmCalmN3CalmCalmCalmCalm
1 day agoCalmCalmCalmCalmCalmCalmCalmS5CalmSE3S4SE5E4SE4E5E4CalmCalmCalmCalmCalmCalmCalmCalm
2 days agoNW3CalmCalmCalmCalmNW4NW5CalmCalmNE4CalmCalmCalmNW3W3CalmCalmCalmCalmCalmCalmCalmCalmCalm

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 (4,6,7,8)
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Ground Weather Radar Station Milwaukee, 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.