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 1:31 AM CDT (06:31 UTC) Moonrise 3:07PMMoonset 3:58AM Illumination 75% 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- 105 Am Cdt Wed Apr 25 2018
.small craft advisory in effect through this evening...
Rest of tonight..North wind 15 to 20 knots. Gusts up to 25 knots. Partly cloudy. Waves 6 to 8 feet.
Wednesday..North wind 15 to 20 knots with gusts to around 25 knots becoming north 15 to 20 knots late in the morning, then easing to 10 to 15 knots with gusts to around 20 knots early in the afternoon veering northeast late in the afternoon. Sunny. Waves 6 to 8 feet subsiding to 3 to 4 feet.
Wednesday night..Northeast wind 5 to 10 knots becoming northwest late in the evening, then backing west after midnight rising to 5 to 10 knots 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 backing south late in the morning, then rising to 10 to 15 knots in the afternoon. Sunny. Waves around 1 foot.
LMZ644 Expires:201804250900;;462329 FZUS53 KMKX 250606 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 105 AM CDT Wed Apr 25 2018 For waters within five nautical miles of shore on Lake Michigan LMZ644-250900-

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 250518 aab
afdmkx
area forecast discussion... Updated
national weather service milwaukee sullivan wi
1218 am cdt Wed apr 25 2018

Update
Winds are gusty out of the northeast with the passage of a cold
front tonight. Skies will clear out toward morning and wind gusts
will diminish.

Aviation(06z tafs)
Winds are gusty out of the north-northeast with the passage of a
cold front tonight. Gusts will die down, but expect elevated winds
through the afternoon. There are a few MVFR ceilings in the
vicinity of the front through around 3 am. All low and high clouds
will clear out toward morning and we will have sunshine all day.

Prev discussion (issued 944 pm cdt Tue apr 24 2018)
update...

expect a period of gusty north to northeast winds tonight as a
cold front moves through. Skies will clear behind the front.

Marine...

a cold front is pushing through the region. Expect north to
northeast wind gusts around 25 knots tonight. North winds will
remain elevated on Wednesday, diminishing during the day. Waves
will build 4 to 7 feet tonight into Wednesday. A small craft
advisory is in effect.

Prev discussion... (issued 721 pm cdt Tue apr 24 2018)
update...

all virga showing up on radar across central and southern
wisconsin ahead of the cold front pushing through the region. Dry
weather is expected tonight. Winds will increase near lake
michigan tonight as the cold front pushes southward down the lake.

Aviation(00z tafs)...

vfr condition expected through the TAF period. For far eastern
wisconsin north to northeast winds will increase and gust 20-25
knots later tonight as a cold front pushes southward down lake
michigan. Seeing a few observations around 20 knots along the
northern portion of the lake which may be the initial surge of the
front. Winds may decrease for a time before dawn but wind gusts
around 20 knots are possible into mid morning.

Prev discussion... (issued 208 pm cdt Tue apr 24 2018)
short term...

tonight... Forecast confidence is high.

An upstream cold front will move southward across southern
wisconsin tonight. The bulk of of the synoptic lift with an
amplifying mid-level short wave remains north of the area
tonight. Models have backed off on precipitation with only an
isolated shower possible across marquette and green lake county
later this evening.

Wednesday through Thursday night... Forecast confidence is high.

Models are in pretty good agreement with taking high pressure
southeastward across the region Wednesday, then to the southeast
Wednesday night into Thursday morning. This will result in a
period of dry conditions across the area. Cooler temperatures
expected for Wednesday, as north to northeast winds gradually
weaken.

Models are then showing a mid upper level trough, and associated
cold front moving across the area Thursday night. Thus, continued
the chance pops for this period.

May still see a brief mix of rain and snow mainly north areas late
Thursday night, as temperatures fall. No accumulations are
expected.

Long term...

Friday through Tuesday... Forecast confidence is medium.

Models suggest northwest flow at 500 mb will linger over the
region Friday into the weekend, with a ridge axis shifting east
over the region Sunday into Monday. Weak low pressure sliding
southeast across the region Friday afternoon into Friday night
should bring a cold front through the area. At this time, it looks
rather dry. Cool temperatures Friday.

High pressure then moves east through the region Saturday into
Saturday night, reaching the great lakes region Sunday.

Southeast winds on the back side of the high should bring mild
temperatures back into most of the area. Lakeshore areas would
remain cooler with the southeast winds. Dry conditions are
expected.

A tightening pressure gradient develops Sunday night into Monday,
with south winds becoming gusty. This will bring steady warm air
advection into the region, with much warmer temperatures possible
by Monday. Temperatures may rise into the middle 70s for Monday,
even for areas near the lake with the gusty southwest winds,
although a lake breeze could affect the shore areas. This
pattern should linger into Tuesday, so the warm temperatures are
expected to continue.

Aviation(18z tafs)...

look forVFR
rest of forecast. Some scattered-bkn clouds around 6 thsd ft with
an approaching cold front tonight.

Marine...

light northeast to north winds early this evening. A cold front
will sweep across the nearshore waters of lake michigan tonight.

A push of cold air behind the front will result in gusty north to
northeast winds tonight, gradually diminishing on Wednesday.

These winds will kick up waves of 4 to 7 feet by late tonight,
which will also slowly diminish on Wednesday. A small craft
advisory is in effect for the period.

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... Cronce
tonight Thursday and aviation marine... Hentz
Thursday night through Wednesday... Hentz


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MLWW3 - Milwaukee, WI 5 mi41 min N 23 G 29 43°F
PWAW3 - Port Washington, WI 23 mi51 min NNE 13 G 20 46°F 1020.3 hPa
KNSW3 - Kenosha, WI 34 mi31 min 44°F 1017.6 hPa (+0.7)
WHRI2 - Waukegan Harbor, IL 49 mi51 min N 19 G 27 44°F

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Milwaukee-Timmerman, WI6 mi36 minNNE 21 G 3110.00 miOvercast and Breezy45°F30°F57%1019.6 hPa
Milwaukee, General Mitchell International Airport, WI8 mi39 minNNE 15 G 3010.00 miOvercast44°F32°F63%1019.4 hPa
Waukesha County Airport, WI13 mi36 minNNE 13 G 2010.00 miOvercast43°F32°F66%1019.6 hPa
Racine, Batten International Airport, WI22 mi38 minN 18 G 2810.00 miOvercast and Breezy42°F33°F71%1019.3 hPa

Wind History from MWC (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmN4NE4NE4N5E5E5NE3NE4E7E7E7NE6CalmNE7NE7NE14
G23
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1 day agoCalmCalmCalmCalmCalmNE4N5E6E8NE9NE12
G16
NE12N10
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NE8NE13NE11NE6NE7NE7N6N4N5CalmN3
2 days agoCalmCalmCalmCalmCalmCalmNE3E6E4E4E6E6E9E6NE5E4NE5E7NE4NE4CalmCalmNE4Calm

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.
target = "new">Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Milwaukee/Sullivan, WI (2,6,7,8)
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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.