Wednesday, March20, 2019 L-36.com


Marine Weather and Tides
Old Mill Creek, IL

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:53AMSunset 7:04PM Wednesday March 20, 2019 4:45 AM CDT (09:45 UTC) Moonrise 6:46PMMoonset 7:03AM Illumination 99% Phase: Full Moon; Moon at 14 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- 305 Am Cdt Wed Mar 20 2019
Early this morning..South wind 5 to 10 knots becoming southwest 10 to 15 knots early in the morning. Partly cloudy. Waves 1 to 2 feet.
Today..Southwest wind 10 to 15 knots backing south late in the morning, then becoming south 10 to 15 knots early in the afternoon veering southwest late in the afternoon. Rain showers in the morning. Rain showers likely in the afternoon. Waves 1 to 2 feet.
Tonight..Southwest wind 5 to 10 knots becoming northwest 10 to 15 knots in the late evening and overnight. Chance of showers through around midnight. Waves 1 to 2 feet.
Thursday..Northwest wind 10 to 15 knots with gusts to around 20 knots easing to 5 to 10 knots early in the afternoon, then becoming west 10 to 15 knots late in the afternoon. Mostly cloudy in the morning then clearing. Waves 1 to 2 feet.
Thursday night..West wind 10 to 15 knots becoming northwest 15 to 20 knots late in the evening, then easing to 10 to 15 knots with gusts to around 20 knots after midnight rising to 15 to 20 knots early in the morning. Partly cloudy. Waves 1 to 2 feet. Wave heights are for ice free areas.
LMZ646 Expires:201903202100;;640382 FZUS53 KMKX 200806 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 305 AM CDT Wed Mar 20 2019 For waters within five nautical miles of shore on Lake Michigan LMZ646-202100-


7 Day Forecast for Marine Location Near Old Mill Creek, IL
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location: 42.49, -87.98     debug


Area Discussion for - Milwaukee/Sullivan, WI
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Fxus63 kmkx 200806
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
306 am cdt Wed mar 20 2019

Discussion
Today through Thursday... Forecast confidence is medium to high:
weak low pressure passing by to the south this morning will bring
light rain to portions of southern wisconsin. The best chance will
be for areas along and southeast of a line from janesville to
milwaukee. The low will get absorbed into a larger low that will
drop through the state this afternoon into the evening. This
system will drag a cold front through, with a chance for showers
along the front by later this afternoon... Maybe hanging on into
early evening. Not as high of confidence in the areal coverage of
these showers later, so kept afternoon precip chances in the
change range.

Temps will stay coolest southeast today where clouds cover will
hang on the longest along with the early day rain chances. It
does look like there will be a wedge of milder air ahead of the
front this afternoon, with some spots cracking 50. This milder air
could make it to the east by late afternoon, but the best chance
for the mildest temps will be from the southwest to the northeast
forecast area.

After showers exit this evening, dry weather is expected for
tonight and Thursday. Looks like clouds will hang around behind
the departing low through tonight and into Thursday morning.

Sunshine should return by afternoon, allowing temps to climb back
towards 50.

Friday and Saturday... Forecast confidence is high.

A brisk northerly flow in the wake of departing low pressure, and
ahead of an approaching high pressure system out of canada, will
keep it a bit cooler than what we previously expected for this
period. Highs will be near normal for Friday and a few degrees
above normal on Saturday. On the plus side, we should see a decent
amount of sunshine.

Sunday and Sunday night... Forecast confidence is high.

A cold front stretched east west across northern wisconsin will
combine with an approaching low pressure system from the
west... To bring a chance of rain to southern wisconsin mainly on
Sunday. Amounts will be fairly light given the amount of dry air
to overcome. Some precip could reach areas southwest of madison
during the early morning hours on Sunday, and may be mixed with
snow initially. No accumulations are expected.

Some rain may linger into Sunday evening, but a very strong
canadian high pressure system will push quickly south, displacing
the rain well south of the border by Monday morning.

Monday through Wednesday... Forecast confidence is high.

The canadian high will bring a much colder airmass to the great
lakes region for early next, along with dry weather. This is more
good news for those locations still needing to dry out from our
early spring flooding.

Aviation(09z tafs)
It still looks like some rain will brush southern wisconsin
this morning, mainly for areas along and southeast of a line from
janesville to milwaukee. Lower ceilings are possible for these
areas as well.

A passing cold front will then likely bring a line of scattered
showers this afternoon. The best chance will be for areas from
madison eastward. An area of lower ceilings may then trail the
passing cold front during the evening and into the overnight.

Marine
Winds will generally be in the 10 to 20 knot range through
Thursday. Northwest to north winds will then pick up Thursday
night into Friday across lake michigan. Looks like a good chance
for gusts to small craft advisory levels in the nearshore waters,
with gusts to gale force possible over the open waters. High waves
are expected during this period as well.

Lighter winds and lower waves will return for the weekend.

Mkx watches warnings advisories
Wi... None.

Lm... None.

Today tonight and aviation marine... Ddv
Thursday through Tuesday... Davis


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KNSW3 - Kenosha, WI 11 mi45 min SSW 5.1 G 6 38°F 1020 hPa (-2.4)
MLWW3 - Milwaukee, WI 39 mi35 min 38°F
FSTI2 40 mi105 min SSW 23 44°F
CHII2 - Chicago, IL 45 mi25 min SSW 17 G 21 45°F 29°F

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kenosha, Kenosha Regional Airport, WI7 mi52 minSSW 610.00 miMostly Cloudy38°F30°F73%1020.3 hPa
Chicago/Waukegan Regional Airport, IL8 mi50 minSSW 1010.00 miMostly Cloudy39°F28°F67%1020.5 hPa
Racine, Batten International Airport, WI21 mi52 minSSW 810.00 miFair35°F27°F72%1020.6 hPa
Burlington Municipal Airport, WI22 mi50 minSSW 510.00 miMostly Cloudy29°F26°F89%1019.6 hPa

Wind History from ENW (wind in knots)
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Last 24hrSW4SW3SW3SW3W6W7W8W10W10W7
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SW11SW7SW9SW4SW4S5CalmSW5S5S6S5SW6SW6
1 day agoW5W4W5W4W8W7W8NW8W9W10W11W9
G19
W9W8W4SW3SW3SW3SW4W4SW3SW3SW5W4
2 days agoCalmSW4CalmW4W7NW8NW8NW9NW8NW8NW8NW11NW12NW7NW4NW3CalmSW3CalmW5NW8NW7NW5NW5

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 (5,6,7,8)
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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.