Wednesday, April14, 2021
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Marine Weather and Tides
Darien, WI

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:13AMSunset 7:38PM Wednesday April 14, 2021 6:51 AM CDT (11:51 UTC) Moonrise 7:39AMMoonset 10:18PM Illumination 6% Phase: Waxing Crescent; Moon at 2 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- 506 Am Cdt Wed Apr 14 2021
.small craft advisory in effect from late tonight through Thursday afternoon...
Today..West wind 10 to 15 knots veering northwest with gusts to around 20 knots late in the afternoon. Slight chance of showers late in the afternoon. Waves around 1 foot.
Tonight..Northwest wind 10 to 15 knots backing west late in the evening, then rising to 15 to 20 knots after midnight veering northwest early in the morning. Mostly cloudy through around midnight then becoming partly cloudy. Waves around 1 foot.
Thursday..Northwest wind 15 to 20 knots with gusts to around 25 knots becoming north 10 to 15 knots with gusts to around 20 knots early in the afternoon, then becoming north 10 to 15 knots late in the afternoon. Partly Sunny. Waves 1 to 2 feet building to 2 to 4 feet in the late morning and early afternoon, then subsiding to 1 to 2 feet late in the afternoon.
Thursday night..Northwest wind 5 to 10 knots veering north after midnight, then becoming north 5 to 10 knots early in the morning. Partly cloudy. Waves 1 to 2 feet.
LMZ646 Expires:202104141600;;532770 FZUS53 KMKX 141006 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 506 AM CDT Wed Apr 14 2021 For waters within five nautical miles of shore on Lake Michigan LMZ646-141600-


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 140840 AFDMKX

Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 340 AM CDT Wed Apr 14 2021

SHORT TERM. (Issued 340 AM CDT Wed Apr 14 2021)

Today and Tonight:

There are light snow showers moving through the La Crosse area early this morning. These are associated with the leading edge of a mid-level vort max that will be swinging through southern WI this morning. The column of air is very dry in our area right now, especially toward the IL border. Outside of a few flurries or sprinkles north of I-94, we should be dry this morning. For this afternoon, steep low level lapse rates under the cyclonic flow could be enough squeeze out a few very light rain showers.

North-northwest winds will increase with cold air advection as this low finally starts to exit our area late tonight. It will be another chilly night with temperatures dropping down to around 34 again.

Cronce

LONG TERM. (Issued 340 AM CDT Wed Apr 14 2021)

Thursday through Tuesday:

Winds will gradually diminish Thursday afternoon as the pressure gradient relaxes. This should allow for a late afternoon lake breeze to develop.

A weakening upper low will track across the Midwest on Saturday, but any precip associated with it should remain to our south.

The next system of interest is a surface low that is expected to sweep across Lake Superior on Monday and drag a cold front through WI. The GFS is much stronger than the ECWMF with the strength of this low, but models are becoming fairly consistent with light precip along and behind the front. With negative 850mb temps, we have a chance at some light snow Monday afternoon/evening.

It looks like we are going to be stuck in this cool and brisk northwest flow pattern for a while as an upper low sits and spins over central Canada.

Cronce

AVIATION. (Issued 340 AM CDT Wed Apr 14 2021)

Look for clouds to increase again from the northwest this morning. Cloud bases should be VFR, but patchy MVFR is possible with a small chance for light rain and snow showers/flurries. MVFR ceilings are possible tonight.

Cronce

MARINE. (Issued 340 AM CDT Wed Apr 14 2021)

Gusty northerly winds will develop late tonight as low pressure finally exits the Upper Great Lakes region. Wind gusts up to 30 kt will diminish from west to east Thursday afternoon. A Small Craft Advisory is in effect for late tonight through early Thursday afternoon. Winds will be lighter for Friday through the weekend, so expect a lake breeze each day.

Cronce

MKX WATCHES/WARNINGS/ADVISORIES. WI . None. LM . Small Craft Advisory . LMZ643-LMZ644-LMZ645-LMZ646 . 4 AM Thursday to 1 PM Thursday.



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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KNSW3 - Kenosha, WI 50 mi51 min W 6 G 9.9 36°F 1019.3 hPa
WHRI2 - Waukegan Harbor, IL 52 mi111 min W 7 G 9.9 38°F
MLWW3 - Milwaukee, WI 54 mi41 min WSW 5.1 G 6 35°F

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Janesville-Rock County, WI15 mi66 minWSW 510.00 miPartly Cloudy32°F25°F75%1019.3 hPa
Burlington Municipal Airport, WI24 mi56 minW 310.00 mi31°F24°F75%1019.3 hPa

Link to 5 minute data for KJVL

Wind History from JVL (wind in knots)
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1 day agoW6W9W11W11W14SW17W15
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W15W15W10W8W4SW4SW4SW6SW4SW4CalmW9W6SW8
2 days agoSE6SE5SE4SE5SE7E5SE4N4NE5NW5NW7NW5NW9NW9NW9NW9W8NW9NW6W4CalmCalmW4W6

Tide / Current Tables for
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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