Friday, August18, 2017 L-36.com


Marine Weather and Tides
Old Mill Creek, IL

Version 3.4
What's New / NOTES
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.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:01AMSunset 7:49PM Friday August 18, 2017 4:49 PM CDT (21:49 UTC) Moonrise 2:29AMMoonset 5:33PM Illumination 12% Phase: Waning Crescent; Moon at 26 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 Pm Cdt Fri Aug 18 2017
Through early evening..West wind 10 to 15 knots. Partly Sunny. Waves around 1 foot.
Tonight..Northwest wind 5 to 10 knots. Isolated sprinkles in the evening, then slight chance of showers in the late evening and early morning. Waves around 1 foot.
Saturday..Northwest wind 5 to 10 knots backing west early in the afternoon, then backing south late in the afternoon. Sunny. Waves around 1 foot.
Saturday night..Southwest wind 5 to 10 knots. Clear. Waves nearly calm.
Sunday..South wind 5 to 10 knots rising to 10 to 15 knots in the afternoon. Sunny. Waves around 1 foot.
LMZ646 Expires:201708190900;;586394 FZUS53 KMKX 182005 NSHMKX Nearshore Marine Forecast National Weather Service MILWAUKEE/SULLIVAN WI 305 PM CDT Fri Aug 18 2017 For waters within five nautical miles of shore on Lake Michigan LMZ646-190900-

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 181917
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
217 pm cdt Fri aug 18 2017

Short term
Tonight and Saturday... Forecast confidence is high:
a decent shortwave will move through this evening. Moisture looks
like it will be confined to a shallow layer centered around 10
kft though. Kept precip chances on the low end, as a few showers
or sprinkles are the best this wave will probably produce given
the limited moisture.

Should see clearing northwest to southeast later tonight into
Saturday morning as high pressure moves in. If clearing moves in
early enough, could see a little fog in the wisconsin river
valley.

It will be a great start to the weekend Saturday, with mostly
sunny skies and near normal temps.

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

The upper level flow becomes zonal, as a lead speed MAX in the
jet north of the dakotas pushes east, to just northwest of lake
superior. Weak upper level divergence and 700 mb upward motion
occurs across southern wisconsin. The 700 mb upward motion
increases Sunday afternoon. A 20 degree 850 celsius thermal ridge
pushes into southern wisconsin Sunday afternoon with a 25 knot
southwest 850 mb wind.

Surface high pressure will move across the great lakes with some
weak warm air advection beginning Sunday. Zero to 1 km mixed
layer CAPE rises to 1000 joules kg southeast, and near 2000
joules kg south central. However there is a fairly strong cap just
below 850 mb. Only the GFS brings light rain into south central
wisconsin. Prefer the dry ECMWF and NAM due to the cap.

Long term
Monday through Tuesday... Forecast confidence is medium.

The zonal flow becomes more southwest Monday night and Tuesday
ahead of a shortwave across south central canada.

The shortwave will push across wisconsin Tuesday night.

A surface trough warm front will be near southern wisconsin later
Monday and Tuesday. The ECMWF is just a little slower in bringing
precipitation, holding off until Monday afternoon far southeast.

The GFS is faster with showers and thunderstorms through the day
Monday. Also the gfs ECMWF and NAM all have a large MCS in
eastern iowa Monday morning. Therefore clouds will likely affect
viewing the eclipse in southern wi on Monday. Stay tuned.

Conditions will remain favorable for showers and scattered storms
through Tuesday evening until a cold front drops south.

Wednesday through Friday... Forecast confidence is high.

A large mid upper level trough is expected over the eastern great
lakes Wednesday, that slowly reaches the northeast u.S. Thursday
night.

A brisk cool north wind is expected Wednesday, with high pressure
and cooler air Thursday. The high is expected to be over the
great lakes Friday.

Aviation(18z tafs)
Lingering MVFR locations are expected to improve toVFR by mid to
late afternoon.

A shortwave may bring a shower or a few sprinkles to the area late
afternoon into the evening.VFR ceilings are expected with this
system.

Could see a little fog in the wisconsin river valley later
tonight into Sat morning under light winds and clearing skies.

High pressure should then bring mostly sunny skies to the area
Saturday.

Marine
Quiet weather is expected this weekend under high pressure.

Mkx watches warnings advisories
Wi... None.

Lm... Small craft advisory until 1 pm cdt this afternoon for
lmz643>646.

Tonight Saturday and aviation marine... Ddv
Saturday night through Friday... Hentz


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KNSW3 - Kenosha, WI 11 mi50 min WNW 11 G 15 76°F 1010.2 hPa (-0.6)
WHRI2 - Waukegan Harbor, IL 13 mi70 min W 5.1 G 15 77°F
45174 30 mi30 min WNW 7.8 G 12 77°F 73°F1 ft64°F
MLWW3 - Milwaukee, WI 39 mi40 min W 12 G 14 76°F
FSTI2 40 mi110 min NNW 15 81°F
45013 43 mi71 min W 9.7 G 12 74°F 71°F1010.4 hPa
OKSI2 44 mi110 min WNW 2.9 83°F
CHII2 - Chicago, IL 45 mi50 min WSW 14 G 17 80°F 60°F
45177 46 mi170 min 77°F

Wind History for Calumet Harbor, IL
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Last
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SW11
G20
SW10
G18
SW9
G15
SW7
G15
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G14
SW12
G16
W3
G10
SW8
G12
SW7
G15
W4
G9
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G9
W2
G6
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1 day
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S10
G14
S4
SE3
SE6
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G11
SE7
G12
S11
G15
S13
G17
S14
G17
S10
G15
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G15
S7
G12
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G15
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G16
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G17
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G20
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G22
2 days
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N11
G14
N8
G12
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G13
N8
G11
NE6
G9
NE6
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NE6
NE7
NE6
NE5
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E5
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NE9
G14

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kenosha, Kenosha Regional Airport, WI7 mi57 minW 1110.00 miMostly Cloudy79°F62°F56%1010.4 hPa
Chicago/Waukegan Regional Airport, IL8 mi55 minVar 410.00 miPartly Cloudy77°F64°F64%1009.6 hPa
Racine, Batten International Airport, WI21 mi57 minW 910.00 miMostly Cloudy77°F62°F60%1010.6 hPa
Burlington Municipal Airport, WI22 mi75 minW 1010.00 miMostly Cloudy77°F63°F64%1011.2 hPa

Wind History from ENW (wind in knots)
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Last 24hrW13
G22
W11W13
G25
W20
G26
W20
G26
W15
G22
W15
G20
W10W10W9W9W8W6W8W8W6NW9NW9W11
G18
NW10W8
G15
W10NW9W11
1 day agoE10E8SE6SE6E7SE6SE9S10
G23
----------SW10SW9S9SW10SW10SW10SW12
G21
SW11
G21
W18
G28
W14
G27
SW16
G23
2 days agoNE7E8E7E7NE4NE3N3CalmCalmN3N3N3N3CalmNE3NE3E8E9E7SE9SE9E10E10E10

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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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of GreatLakes    EDIT
Geos

Wind Forecast for Milwaukee/Sullivan, WI (17,4,5,8)
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Ground Weather Radar Station Milwaukee, WI
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weather_mapweather_map weather_map

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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.