Monday, July23, 2018 L-36.com


Marine Weather and Tides
Winthrop Harbor, IL

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Sunrise 5:34AMSunset 8:21PM Monday July 23, 2018 10:36 AM CDT (15:36 UTC) Moonrise 5:10PMMoonset 2:17AM Illumination 81% Phase: Waxing Gibbous; Moon at 11 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- 906 Am Cdt Mon Jul 23 2018
Rest of today..North wind 10 to 15 knots. Partly Sunny. Waves 1 to 3 feet.
Tonight..North wind 5 to 10 knots backing northwest after midnight. Partly cloudy. Waves 1 to 2 feet.
Tuesday..North wind 5 to 10 knots veering northeast early in the afternoon, then becoming east late in the afternoon. Mostly Sunny. Waves around 1 foot.
Tuesday night..Southwest wind 5 knots becoming west late in the evening, then veering northwest after midnight becoming northwest 5 to 10 knots early in the morning. Mostly clear. Waves around 1 foot.
LMZ646 Expires:201807232200;;928901 FZUS53 KMKX 231407 NSHMKX Nearshore Marine Forecast National Weather Service Milwaukee/Sullivan WI 906 AM CDT Mon Jul 23 2018 For waters within five nautical miles of shore on Lake Michigan LMZ646-232200-

7 Day Forecast for Marine Location Near Winthrop Harbor village, IL
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location: 42.47, -87.82     debug


Area Discussion for - Chicago, IL
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Fxus63 klot 231142
afdlot
area forecast discussion
national weather service chicago romeoville, il
642 am cdt Mon jul 23 2018

Short term
245 am cdt
through Monday...

our unseasonably deep low pressure system across the
eastern third of the u.S. Will only make slow headway eastward
thanks to blocking over the atlantic, and actually will be
retrograding some through the morning hours. Plentiful clouds over
the lake continue to spill into far northeast il and northwest in,
including downtown chicago, and this may continue through mid to
later morning. A dividing line in the clouds will linger across
the i-39 corridor as weak upper level height rises exist. Clearing
areas may see some fog, given the moist low level conditions.

While very limited instability will develop, SPC cams depict that
the best coverage of any showers will be close to the lake
initially early this morning. This afternoon a few of the cams
then develop some showers on a lake convergent axis. Very weak mid
level lapse rates and limited instability suggest low coverage.

We should be able to tack on a few more degrees today away from
the lake.

High pressure will slide in across our area overnight, thus a
fairly quiet tonight and for Tuesday. Shortwave energy across the
upper midwest will shift into the ridge later Tuesday into early
Wednesday as surface high pressure holds across the plains.

Therefore, outside of the wave, shower coverage should remain
lower.

Kmd

Long term
245 am cdt
Wednesday through Sunday...

high pressure will shift overhead Wednesday before it moves to the
eastern great lakes later Wednesday. This is ahead of a
seasonally stout upper wave that will pass through the northern
great lakes beginning Wednesday night. Cold front forced precip
will also occur Wednesday night, with a second band (likely
induced by the trailing upper wave), though numerous guidance
sources are dry with the fropa.

Cyclonic flow will continue into the weekend as another upper low
will swing in from the northwest. At this point the associated
cold front will setup just to our south. It is this area that
stands the chance for a wet weekend, though some guidance does
have our region under rain for a time.

Kmd

Aviation
For the 06z tafs...

main forecast concern for the terminals will be winds.

The infuence of the unseasonable upper low is diminishing as upper
ridging builds east across the middle upper mississippi valley.

The cloudiness over nern il is moving south and the il terminals
should trend toward mostly clear to sct for the period. Kgyy will
continue to see lake effect cloudiness with the potential for a
few showers. Winds at the chicago area terminals will start out
nwly this morning, but a lake-influenced wind shift to nnely with
a surge of winds to arnd 10 kt is expected by early afternoon. The
lake influence to the wind field will diminish with sunset and
winds will diminish to lgt vrbl. Other than the small chance for a
shower at kgyy, conditions should be dry andVFR through the
period.

Marine
300 am cdt
with winds remaining a bit stronger later into the evening, the
sc.Y had been extended to 4:00 am cdt. However, winds are
beginning to weaken and nearshore buoys are reporting 2-4 ft waves
and slowly diminishing. So, will let the advisory expire on time.

Winds will gradually diminish and becm lgt vrbl Tuesday night
through Wednesday as the high moves over the lake. Winds will then
becm more sly as low pressure crosses the upper mississippi valley
Wednesday evening. The low is expected to cross the upper great
lakes Wednesday night and Thursday while dragging a cold front
across the lake. West to northwest winds up to 20 kt will set up
Thursday night and Friday following the passage of the cold front.

Lot watches warnings advisories
Il... None.

In... None.

Lm... None.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
45187 3 mi37 min 69°F 69°F2 ft
45186 7 mi37 min 69°F 2 ft
WHRI2 - Waukegan Harbor, IL 8 mi57 min N 11 G 13 71°F
KNSW3 - Kenosha, WI 8 mi37 min NNE 13 G 15 68°F 1013.9 hPa (+0.4)
45174 25 mi27 min N 12 G 14 68°F 68°F4 ft66°F
FSTI2 35 mi97 min N 11 68°F
MLWW3 - Milwaukee, WI 40 mi27 min NNE 12 G 13 69°F
CHII2 - Chicago, IL 40 mi37 min N 15 G 16 68°F 64°F
45177 41 mi157 min 66°F1 ft
45013 44 mi60 min N 9.7 G 12 68°F 68°F4 ft1014.4 hPa
45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI 44 mi47 min N 16 G 19 69°F 72°F4 ft1012.8 hPa (+0.7)66°F
CNII2 44 mi22 min NNW 11 G 13 71°F 62°F
JAKI2 49 mi97 min NNE 8.9 G 13 69°F

Wind History for Calumet Harbor, IL
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N7
G11
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N7
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G19

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chicago/Waukegan Regional Airport, IL4 mi42 minN 610.00 miMostly Cloudy72°F64°F76%1012.9 hPa
Kenosha, Kenosha Regional Airport, WI10 mi44 minNNW 710.00 miOvercast73°F66°F79%1013.9 hPa
Racine, Batten International Airport, WI20 mi44 minN 910.00 miMostly Cloudy73°F64°F74%1014.1 hPa

Wind History from UGN (wind in knots)
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Last 24hrN8
G16
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G21
N12
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N6N9N6N4N3NW3NW5N3NW3NW4NW4NW5NW5NW455N6
1 day agoN10
G18
NE10N9
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N5
G14
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N8N65
G15
N6
G18
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N7N6N9
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N76N8
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2 days agoSW10S7S9SW9W7
G15
W7CalmW4SW6W64Calm3N6NW7N6NW6N6N655N9
G17
N8N8
G18

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 Chicago, IL (11,2,3,4)
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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.