Wednesday, April25, 2018 L-36.com


Marine Weather and Tides
Milwaukee, WI

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 5:51AMSunset 7:48PM Wednesday April 25, 2018 9:16 AM CDT (14:16 UTC) Moonrise 3:07PMMoonset 3:58AM Illumination 78% Phase: Waxing Gibbous; Moon at 10 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- 905 Am Cdt Wed Apr 25 2018
.small craft advisory in effect until 7 pm cdt this evening...
Rest of today..North wind 15 to 20 knots veering northeast early in the afternoon, then easing to 10 to 15 knots late in the afternoon. Sunny. Waves 4 to 6 feet subsiding to 3 to 4 feet.
Tonight..Northeast wind 5 to 10 knots backing southwest early in the morning. Clear. Waves 2 to 4 feet subsiding to 1 to 2 feet after midnight.
Thursday..Southwest wind 5 to 10 knots becoming south 10 to 15 knots in the afternoon. Mostly Sunny. Waves 1 to 2 feet.
Thursday night..West wind 10 to 15 knots veering northwest with gusts to around 20 knots late in the evening, then becoming north 15 to 20 knots after midnight easing to 10 to 15 knots with gusts to around 20 knots early in the morning. Slight chance of showers. Waves 1 to 2 feet building to 2 to 4 feet after midnight.
LMZ644 Expires:201804252200;;478461 FZUS53 KMKX 251405 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 905 AM CDT Wed Apr 25 2018 For waters within five nautical miles of shore on Lake Michigan LMZ644-252200-

7 Day Forecast for Marine Location Near Milwaukee, WI
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location: 43.06, -87.97     debug


Area Discussion for - Milwaukee/Sullivan, WI
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Fxus63 kmkx 251056
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
556 am cdt Wed apr 25 2018

Update No changes at this time.

Aviation(12z tafs) Bulk of clouds have cleared southern wi. Few
cumulus will redevelop this morning.VFR conditions expected this
period as drier air and subsidence settle into southern wi. Gusty
winds will continue near the lake and will redevelop most inland
areas.

Prev discussion (issued 307 am cdt Wed apr 25 2018)
short term...

today and tonight - confidence... High.

Synoptic scale lift associated with mid-level short wave racing off
to the east early this morning. Increasing subsidence and return of
low to mid level dry air putting kibosh on overnight clouds, per
latest satellite imagery. Hence expect mostly sunny conditions for
today, with mostly clear skies tonight. Few-sct cumulus will likely
redevelop for a time. Subsidence associated with short wave ridging
remains in place during the period. May see some few-sct high
clouds tonight ahead of approaching northern plains short wave.

Cooler 925h temps and north to northeast surface winds will result
in a cooler day, with high temperatures from the mid 50s to mid 60s
away from the lake. Light winds and mostly clear skies will allow
temperatures to fall into the low to mid 30s tonight.

Long term...

Thursday through Friday... Forecast confidence is medium.

We will get back into weak southerly flow ahead of an
upper surface trough Thursday. We'll head into the mid 60s for
highs. Southern wi will be in a dry, mixed environment that is
conducive for lower dewpoints and relative humidity. We lowered
dewpoints into the lower 30s, but this type of pattern may feature
even lower values.

There is a small chance for showers right behind a cold front thu
evening, with better chances north of i-94. This is within an
small area of deeper saturation and forcing. A brief period of
gusty north winds are expected as well.

Another mid level shortwave trough will barrel through the upper
great lakes Friday afternoon. Timing of this wave is a little
uncertain between the models, but scattered to numerous rain
showers are expected with this potent system. Steep low level
lapse rates could lead to a few rumbles of thunder as well. Areas
east of green lake and madison have the better chance for precip.

Saturday through Monday... Forecast confidence is high.

The upper trough will hang around the great lakes through
Saturday, so expect a few diurnal cumulus clouds around. More
sunshine inland and no lake influence will allow temps to get into
the upper 50s. High pressure and increasing southerly flow for the
first half of next week will usher much warmer air into southern
wisconsin. Sunday and Monday will be dry, with Monday being the
warmest of the two with highs in the mid 70s.

Tuesday and beyond... Forecast confidence is medium.

An approaching low pressure system from the northern plains will
bring showers and thunderstorms to the upper midwest. Depending on
the speed of this next system, Tuesday may remain dry and very
warm with highs in the mid 70s, but dewpoints will be on the rise.

The 00z ECMWF shows a more prominent northern upper low and
therefore a faster track than the gfs, which focuses more on a
closed off upper trough over the southwest and gives us a
prolonged period of rainy weather. We will be able to get a better
idea of severe thunderstorm chances in a few days.

Aviation(09z tafs)... Patchy lowVFR and MVFR clouds will
continue to erode early this morning as subsidence and drier air
surges into southern wi. Gusty winds by the lakeshore will
diminish but remain gusty through the morning.VFR conditions are
expected for today and tonight. Some few-sct cumulus wl likely
develop later this morning but dissipate for tonight.

Marine... Strongest northeast winds are expected this morning
due to lingering pressure gradient and weakening low level cold air
advection. Gusts will diminish late this morning and afternoon, but
lingering onshore flow will result in slower fall in wave heights.

For now, will continue ongoing small craft advisory with northern
zone expiring in the early afternoon and rest of the area expiring
in the evening. Later shifts may need to fine tune ending time
as waves slowly subside.

Mkx watches warnings advisories
Wi... None.

Lm... Small craft advisory until 7 pm cdt this evening for lmz644>646.

Small craft advisory until 1 pm cdt this afternoon for lmz643.

Update... mbk
today tonight and aviation marine... mbk
Thursday through Tuesday... Cronce


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MLWW3 - Milwaukee, WI 5 mi26 min N 18 G 23 42°F
PWAW3 - Port Washington, WI 23 mi36 min N 8 G 17 45°F 1021.7 hPa
KNSW3 - Kenosha, WI 34 mi76 min 42°F 1019.6 hPa (+1.0)
WHRI2 - Waukegan Harbor, IL 49 mi36 min NNE 21 G 27 42°F

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Milwaukee-Timmerman, WI6 mi31 minN 1310.00 miClear46°F28°F50%1020.3 hPa
Milwaukee, General Mitchell International Airport, WI8 mi24 minNNE 17 G 2410.00 miA Few Clouds46°F30°F56%1020.6 hPa
Waukesha County Airport, WI13 mi31 minNNE 1110.00 miClear45°F30°F57%1020.3 hPa
Racine, Batten International Airport, WI22 mi23 minN 18 G 2810.00 miFair and Breezy44°F32°F63%1020.9 hPa

Wind History from MWC (wind in knots)
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Last 24hrNE4N5E5E5NE3NE4E7E7E7NE6CalmNE7NE7NE14
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1 day agoE6E8NE9NE12
G16
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NE8NE13NE11NE6NE7NE7N6N4N5CalmN3CalmCalmCalmCalmCalmN4NE4
2 days agoE6E4E4E6E6E9E6NE5E4NE5E7NE4NE4CalmCalmNE4CalmCalmCalmCalmCalmCalmNE4N5

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    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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Milwaukee/Sullivan, WI (10,2,3,4)
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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.