Wednesday, March20, 2019 L-36.com


Marine Weather and Tides
Waukegan, 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 4:09 PM CDT (21:09 UTC) Moonrise 6:46PMMoonset 7:02AM Illumination 100% Phase: Full Moon; Moon at 15 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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LMZ740 Winthrop Harbor To Wilmette Harbor- Wilmette Harbor To Northerly Island- Northerly Island To Calumet Harbor- 231 Pm Cdt Wed Mar 20 2019
Tonight..Southwest winds 10 to 20 kt becoming northwest 15 to 20 kt in the late evening and overnight. Chance of showers in the evening. Waves 1 ft or less building to 1 to 3 ft.
Thursday..Northwest winds 15 to 25 kt becoming 15 to 20 kt in the afternoon. Cloudy in the morning then becoming mostly Sunny. Waves 2 to 4 ft.
Thursday night..West winds 10 to 20 kt becoming northwest 15 to 20 kt after midnight. Partly cloudy. Waves 1 to 3 ft building to 2 to 4 ft after midnight.
Friday..North winds 15 to 25 kt. Mostly Sunny. Waves 4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally to 9 ft in the afternoon. A small craft advisory will likely be needed.
LMZ740 Expires:201903210330;;663915 FZUS53 KLOT 201931 NSHLOT NEARSHORE MARINE FORECAST National Weather Service Chicago/Romeoville IL 231 PM CDT Wed Mar 20 2019 For waters within five nautical miles of shore on Lake Michigan Waves are provided as a range of significant wave heights, which is the average of the highest 1/3 of the waves, along with the average height of the highest 10 percent of the waves which will occasionally be encountered. LMZ740>742-210330-


7 Day Forecast for Marine Location Near Waukegan, IL
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location: 42.37, -87.8     debug


Area Discussion for - Chicago, IL
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Fxus63 klot 202009
afdlot
area forecast discussion
national weather service chicago romeoville, il
309 pm cdt Wed mar 20 2019

Short term
225 pm cdt
through Thursday...

main concern for the short term forecast period will be lingering
pcpn trends for the remainder of the afternoon and this evening.

Latest radar imagery indicates that the main area of pcpn associated
with the quick-moving short wave is exiting off to the east, leaving
a very moist air mass it it's wake. Low stratus and patchy fog
should persist through the afternoon. Another cold front is
expected to push into NRN il early this evening and quickly push
south and east across the region. The latest high res guidance
continues to indicate the potential for some scattered showers along
and ahead of the front. There should be diminishing pcpn potential
following the FROPA as well as a wind shift to northwesterly. Cooler
air will filter in behind the front, with lows tonight dropping into
the lower 30s. Thursday should be dry and with short wave ridging
moving across the area, skies are expected to clear out through the
day. With increasing sunshine, highs Thursday should be able to
climb into the middle to upper 40s, except for the northwestern
indiana lake front, where northwest winds off of the relatively cold
lake michigan water should limit temperatures to the upper 30s to
lower 40s.

Long term
308 pm cdt
Thursday night through Wednesday...

generally quiet at the start of the period. Large vort MAX will
drop southeast across the great lakes region, with surface trough
and front moving south through the region. Dry conditions expected
with FROPA Thursday night, but expect cloud cover to be on the
increase once again into Friday morning. Slightly cooler air mass
will be in place, with high pressure then expected to build across
the region. This will continue a period of drier weather into the
weekend, with some moderation to the air mass then expected. Next
chance of rain arrives on Sunday, as mid upper level trough moves
through the central conus. Confidence for rain across the region
is on the higher side, with overall coverage and amounts remaining
lower. This is due to the some variability with the track of the
associated low and approaching cold front. High pressure builds
back across the region early next week, but with a colder air mass
moving back in across the region.

Rodriguez

Aviation
For the 18z tafs...

latest radar imagery indicates that the bulk of the pcpn is
exiting the region to the east, but a small deformation band of
rain has developed over far nern il, INVOF ord. However, still
expect that much of the pcpn should end at the terminals within
the next hour or so. In a moist environment, with dewpoint
depressions approaching 1 to 2 degrees, patchy ifr CIGS and MVFR
vis has developed. Expect that the potential for ifr conditions
should persist through late afternoon, but there should be
improvement to CIGS vis in as another cold front dropping through
the upper mississippi valley this afternoon pushes into NRN il
early evening. While the latest guidance continues to indicate the
potential for some scattered rain showers, only anticipate minimal
impact with a chance for MVFR cigs. Following the passage of the
cold front, expect that CIGS should trend back down to prevailing
MVFR range while winds shift to northwesterly winds.

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
WHRI2 - Waukegan Harbor, IL 1 mi90 min WSW 9.9 G 11 41°F
KNSW3 - Kenosha, WI 15 mi70 min SW 8 G 9.9 42°F 1012.9 hPa (-2.7)
FSTI2 28 mi130 min SW 8.9 42°F
CHII2 - Chicago, IL 34 mi40 min SW 11 G 13 42°F 41°F
JAKI2 42 mi130 min SW 5.1 G 8.9 43°F
CMTI2 - 9087044 - Calumet, IL 46 mi40 min SSW 7 G 9.9 43°F 1012.7 hPa41°F
MLWW3 - Milwaukee, WI 47 mi30 min 43°F

Wind History for Calumet Harbor, IL
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N8
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chicago/Waukegan Regional Airport, IL5 mi75 minSW 84.00 miOvercast with Haze42°F37°F82%1013.3 hPa
Kenosha, Kenosha Regional Airport, WI17 mi77 minSW 86.00 miFog/Mist43°F39°F89%1013.1 hPa
Chicago / Wheeling, Pal-Waukee Airport, IL19 mi78 minSSW 55.00 miOvercast with Haze43°F37°F82%1014 hPa

Wind History from UGN (wind in knots)
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Last 24hrSE10SE4E3CalmCalmSW4S3CalmSW4S5SW9SW10SW8SW8SW11S10S10SW11
G17
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1 day agoNW5W5SW3SW3SW4SW4W3SW4W333W3SW3SW3W43W4SW7SW10SW7
G16
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2 days ago3E6SE3CalmCalmCalmSW3W3NW4NW4NW4NW4W53W4W4W6NW6366W7
G14
66

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 Chicago, IL (17,4,5,8)
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Ground Weather Radar Station Chicago, IL
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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.