Tuesday, May11, 2021
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Marine Weather and Tides
Greendale, 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 5:30AMSunset 8:05PM Tuesday May 11, 2021 9:24 PM CDT (02:24 UTC) Moonrise 5:39AMMoonset 8:08PM Illumination 0% Phase: New Moon; Moon at 0 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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LMZ645 North Point Light To Wind Point Wi- 906 Pm Cdt Tue May 11 2021
Rest of tonight..Southwest wind 5 knots becoming west after midnight. Clear. Waves around 1 foot.
Wednesday..West wind 5 to 10 knots veering east late in the morning, then veering southeast early in the afternoon becoming southeast 5 to 10 knots late in the afternoon. Sunny. Waves nearly calm.
Wednesday night..Southeast wind 5 to 10 knots becoming south late in the evening, then becoming southwest after midnight veering west early in the morning. Clear. Waves nearly calm.
Thursday..Southwest wind 5 to 10 knots backing southeast in the afternoon. Sunny. Waves around 1 foot.
LMZ645 Expires:202105121000;;975619 FZUS53 KMKX 120206 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 906 PM CDT Tue May 11 2021 For waters within five nautical miles of shore on Lake Michigan LMZ645-121000-


7 Day Forecast for Marine Location Near Greendale, WI
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location: 42.95, -87.95     debug


Area Discussion for - Milwaukee/Sullivan, WI
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FXUS63 KMKX 111940 AFDMKX

Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 240 PM CDT Tue May 11 2021

SHORT TERM. (Issued 240 PM CDT Tue May 11 2021)

Tonight through Wednesday night:

Well defined lake breeze boundary has shifted inland per visible satellite. Winds have shifted to the east and temps along the lake have dropped into the mid 40s.

Overall, high pressure will dominate this period with another chilly night in the works. Given the evolving light winds with the high drawing even closer and clear skies will hoist another frost advisory. There is some concern a few areas could go even colder especially in SC WI due to the drier airmass and proximity to the core of lightest winds. For now will go with frost for the headline but it is plausible that some spots slip into the upper 20s. With the weak flow across the area on Wednesday expect a lake breeze to set up again. Still another shot at some frost coming up on Wednesday night.

Collar

LONG TERM. (Issued 240 PM CDT Tue May 11 2021)

Thursday through Tuesday:

We will continue to have quiet weather across southern Wisconsin on Thursday and Friday as high pressure holds strong over the region. The high pressure ridge is slower to move out than previously forecast. Weak shortwave energy could kick off a few showers Friday and Saturday afternoons. Light winds will allow for a lake breeze each day, but lakeshore areas should at least be able to achieve upper 50s to around 60 for the high. Inland areas should reach the upper 60s, but would not be surprised to see a few spots hit 70 with this dry and sunny air mass overhead.

The upper level flow will become more zonal for the weekend, so expect increasing chances for showers. The best chance for showers and perhaps thunderstorms in southern WI looks like it will hold off until Sunday night or Monday now.

Cronce

AVIATION. (Issued 240 PM CDT Tue May 11 2021)

Diurnally driven VFR cumulus field will dissipate with loss of heating this evening. High pressure will remain in control through Wednesday and beyond. With the overall light wind regime in place, another lake breeze will develop on Wednesday.

Collar

MARINE. (Issued 240 PM CDT Tue May 11 2021)

High pressure building into the area will dominate for the rest of the week. Thus, not expecting any headlines to be needed across either the nearshore or open waters of the lake.

Collar

MKX WATCHES/WARNINGS/ADVISORIES. WI . Frost Advisory . WIZ046-WIZ047-WIZ051-WIZ052-WIZ056-WIZ057- WIZ058-WIZ059-WIZ060-WIZ062-WIZ063-WIZ064-WIZ065-WIZ066- WIZ067-WIZ068-WIZ069-WIZ070-WIZ071-WIZ072 . 1 AM Wednesday to 8 AM Wednesday.

LM . None.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MLWW3 - Milwaukee, WI 5 mi55 min SW 1.9 G 1.9 47°F
45013 12 mi55 min S 3.9 G 5.8 46°F 46°F1 ft1028.9 hPa
KNSW3 - Kenosha, WI 26 mi85 min SSE 1.9 G 4.1 47°F 1028.8 hPa (+0.7)
PWAW3 - Port Washington, WI 31 mi45 min WSW 4.1 G 5.1 47°F 1029.8 hPa
45187 33 mi45 min SE 1.9 G 3.9 45°F 50°F1 ft
WHRI2 - Waukegan Harbor, IL 41 mi85 min WSW 2.9 G 2.9

Wind History for Calumet Harbor, IL
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NE9
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G18
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Milwaukee, General Mitchell International Airport, WI3 mi33 minN 010.00 miFair47°F27°F46%1029.7 hPa
Milwaukee-Timmerman, WI13 mi30 minN 010.00 miFair45°F23°F43%1029.5 hPa
Waukesha County Airport, WI14 mi40 minE 510.00 miFair43°F28°F57%1029.1 hPa
Racine, Batten International Airport, WI15 mi32 minN 010.00 miFair45°F30°F56%1030.3 hPa

Link to 5 minute data for KMKE

Wind History from MKE (wind in knots)
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Last 24hrCalmNE4NE3CalmCalmNW3NW4NW3NW4NW5N6N10
G14
NE9NE10NE12NE13NE12NE10NE8E95E6E4Calm
1 day agoNE11NE6NE8NE8NE7NE8NE5NE7NE8NE7NE9NE9NE8NE10E6NE8NE6E8E11E8E7SE6SE4S4
2 days agoSE3S3SE4SE6CalmE4E5E7E6NE7NE9NE15
G21
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N12N15
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N10NE11

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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