Thursday, August22, 2019 L-36.com


Marine Weather and Tides
Brookfield, WI

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:04AMSunset 7:46PM Thursday August 22, 2019 9:39 PM CDT (02:39 UTC) Moonrise 11:24PMMoonset 12:51PM Illumination 50% Phase: Third Quarter Moon; Moon at 22 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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LMZ644 Port Washington To North Point Light Wi- 906 Pm Cdt Thu Aug 22 2019
Rest of tonight..Northeast wind 10 to 15 knots. Partly cloudy. Waves 2 to 4 feet.
Friday..Northeast wind 10 to 15 knots. Sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon.
Friday night..Northeast wind 10 to 15 knots. Clear. Waves 2 to 4 feet.
Saturday..East wind 10 to 15 knots veering southeast in the late morning and early afternoon, then becoming southeast 10 to 15 knots late in the afternoon. Sunny. Waves 2 to 4 feet.
LMZ644 Expires:201908231000;;061511 FZUS53 KMKX 230206 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 905 PM CDT Thu Aug 22 2019 For waters within five nautical miles of shore on Lake Michigan LMZ644-231000-


7 Day Forecast for Marine Location Near Brookfield, WI
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location: 43.06, -88.11     debug


Area Discussion for - Milwaukee/Sullivan, WI
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Fxus63 kmkx 230145
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
845 pm cdt Thu aug 22 2019

Update
The mid level cloud deck is showing signs of dissipation as the
mid level short wave drifts off to the southeast of the area. The
rest of the forecast is still on track.

Marine
High pressure will settle across the great lakes on Friday,
drifting off the east over the weekend. Expect somewhat breezing
north to northeast winds tonight into Friday night. Winds will
veer to the southeast over the weekend as the high slides off to
the east.

Prev discussion (issued 604 pm cdt Thu aug 22 2019)
update...

the previous forecast and discussion are still on track. No
changes needed.

Aviation(00z tafs)...

vfr conditions are expected through the TAF period. Clouds will
diminish this evening. More diurnal CU will develop by mid to late
morning on Friday, peak during the afternoon, then diminish in the
evening. These should be based around 5kft. Winds will generally
remain out of the northeast through the TAF period.

Prev discussion... (issued 328 pm cdt Thu aug 22 2019)
short term...

tonight through Friday night... Forecast confidence is high.

The shortwave aloft is pivoting through the area this afternoon
and will push to the S SE tonight. Expect the cloud cover to hold
through the early evening hours before starting to clear. Behind
this high pressure and an upper ridge build over the area bringing
another mostly clear night. Lows will again dip into the low to
mid 50s with a few of the cooler spots hitting the upper 40s. Fog
is forecast to occur in the river valleys in SW wi tonight.

Highs on Friday end up very similar to today with values in the
lower 70s. Locations near the lake may not crack the 70 degree
mark with slight easterly breezes expected. Friday night will end
up the coolest night of the week with much of the area possibly
falling below 50 degrees.

Long term...

Saturday through Wednesday... Forecast confidence is medium to
high.

The ridge and surface high remain centered over the area for much
of the weekend resulting in a gradual warming trend in afternoon
max temps. Models want to start nudging lows up each night but
with the high still over the area this may be overdone. This is
especially true since we aren't expecting much of an airmass
change over the weekend. There are some differences heading into
early next week between the GFS and ecmwf, which is driving some
of the uncertainty. The GFS is the quickest to bring back moisture
as a trough approaches the area. The ECMWF on the other hand has
the ridge lingering and slows the moisture return until Monday.

Looking at GFS ensemble data it would favor a scenario similar to
what the ECMWF is advertising and have trended the forecast in
that direction. Moisture will get pulled northward immediately
ahead of a decent upper level system moving along the u.S. Canada
border. Scattered to numerous showers with embedded thunderstorms
are forecast to develop along a front that moves through Monday
evening. After this system passes to the east the uncertainty in
the forecast ticks up as the ECMWF indicates a drier forecast
while the GFS brings another system through the area on Wednesday.

Ensembles show a good deal of spread so have gone with a blend of
guidance for the extended forecast.

Aviation(21z tafs)...

vfr conditions are forecast through the period. The sct bkn deck
of mid-level clouds begin to dissipate tonight leaving mostly
clear skies. As high pressure builds into the area winds will
favor an E NE direction with speeds at or below 10kts.

Marine...

the east to northeasterly winds will result in some higher waves
continuing through the overnight hours. Wind gusts in the open
waters up to 20 kts are possible across the southern half of the
lake with waves between 3 to 5 feet. The nearshore waters could
see waves between 2 to 4 feet. High pressure building in Friday
and into the weekend will result in lighter winds and waves. Winds
become more southerly heading into next week ahead of an
approaching system and frontal boundary.

Mkx watches warnings advisories
Wi... None.

Lm... None.

Update... Davis
tonight Friday and aviation marine... Davis
Friday night through Thursday... Stumpf


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
45013 14 mi39 min NE 12 G 16 68°F 69°F3 ft1019.5 hPa (+1.0)
PWAW3 - Port Washington, WI 26 mi59 min NE 8.9 G 14 67°F 1020.3 hPa
KNSW3 - Kenosha, WI 36 mi39 min NE 15 G 18 69°F 1018.3 hPa (+1.0)
45187 43 mi39 min 73°F 73°F3 ft

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Milwaukee-Timmerman, WI5 mi44 minNE 410.00 miOvercast64°F50°F60%1019.6 hPa
Waukesha County Airport, WI6 mi54 minNE 310.00 miOvercast63°F53°F73%1020 hPa
Milwaukee, General Mitchell International Airport, WI13 mi47 minNE 810.00 miMostly Cloudy66°F53°F63%1018.9 hPa

Link to 5 minute data for KUES

Wind History from UES (wind in knots)
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Last 24hrNW6NW4NW3CalmN4N3CalmN4CalmNE7NE6NE9E8E4NE5E6E10E8E7E8NE10E7NE3NE3
1 day agoSW5SW3SW4S3CalmCalmSW4CalmW4W4W4W5W7W11
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2 days agoCalmCalmCalmCalmCalmCalmCalmCalmE3E5CalmCalmE5SE5E4CalmS5S5SW5S4SW4W4W4W3

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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wmap_A
GOES Local Image of GreatLakes    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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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 numerious 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.