Tuesday, March19, 2019 L-36.com


Marine Weather and Tides
Lincolnwood, 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 6:54AMSunset 7:02PM Tuesday March 19, 2019 5:53 PM CDT (22:53 UTC) Moonrise 5:29PMMoonset 6:25AM Illumination 99% Phase: Waxing Gibbous; 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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LMZ741 Expires:201903200300;;616681 Fzus53 Klot 192003 Nshlot Nearshore Marine Forecast National Weather Service Chicago/romeoville Il 303 Pm Cdt Tue Mar 19 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>742-200300- Winthrop Harbor To Wilmette Harbor- Wilmette Harbor To Northerly Island- Northerly Island To Calumet Harbor- 303 Pm Cdt Tue Mar 19 2019
Tonight..South winds 10 to 15 kt. Chance of rain toward morning. Waves 1 to 2 ft.
Wednesday..South winds 10 to 20 kt becoming southwest in the afternoon. Rain in the morning, then a chance of rain in the afternoon. Waves 1 to 3 ft.
Wednesday night..Northwest winds 15 to 20 kt. Chance of rain in the evening. Waves 2 to 4 ft.
Thursday..Northwest winds 10 to 20 kt becoming west 10 to 15 kt in the afternoon. Partly Sunny in the morning then clearing. Waves 2 to 4 ft subsiding to 1 to 3 ft in the afternoon.
LMZ741


7 Day Forecast for Marine Location Near Lincolnwood, IL
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location: 41.95, -87.63     debug


Area Discussion for - Chicago, IL
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Fxus63 klot 191946
afdlot
area forecast discussion
national weather service chicago romeoville, il
246 pm cdt Tue mar 19 2019

Short term
1232 pm cdt
through Wednesday...

seasonal conditions remain in place afternoon with plentiful
sunshine, some scattered cumulus, and readings in the upper 40s
to near 50. Water vapor imagery depicts an increasing cloud
shield out ahead of the upper low currently across the central
plains. Warm advection ahead of the compact upper low will drive
an area of rain across the area late tonight into Wednesday.

Morning raobs indicate an axis of pwat values in excess of 0.6",
not a direct gulf of mexico feed but an axis of increased
moisture. Southwest flow ahead of the low will induce isentropic
ascent and eventually lead to lower level saturation. For tonight
the ascent is more modest, but will increase overnight into more
so Wednesday morning. Ensemble plumes suggest most areas will see
under 0.25" of qpf, but the lift and moisture are supportive of
higher totals mainly along and south of i-80 and into northwest
indiana.

The stronger shortwave energy will pass to our south, but broad
height falls and the main trough axis will still be shifting
through Wednesday afternoon, thus cloudy conditions will persist
with some light rain showers still possible. Given the extensive
cloud cover, expect highs to fall shy of 50 in most areas.

Kmd

Long term
Wednesday night through Tuesday...

246 pm... Forecast concerns include a cold front winds off the
lake Friday... Brief warm up this weekend and another strong cold
front Sunday night Monday.

Weak low pressure will be departing to the east Wednesday evening
as winds shift to the northwest across the area. There may still
be some lingering rain showers Wednesday evening and depending on
how long they persist... They may mix with some wet snow later in
the evening or after midnight but by this time it appears precip
would be ending or perhaps just some flurries.

A cold front is now expected to move across the area early Friday
morning and this is likely to keep temps generally in the 40s but
as winds turn off the lake Friday afternoon... Temperatures will
fall during the mid late afternoon near the lake and likely into
the 30s. High pressure will then build across the area Friday
night with light calm winds expected. This high will be close
enough to the area on Saturday for at least a weak lake breeze
along the il shoreline. Have shifted winds southeasterly there
with modest cooling but a bit early to determine how far inland
and how strong the lake breeze will become. Away from any lake
cooling... High temps Saturday should reach lower mid 50s.

A large area of strong high pressure will move south from canada
into the northern plains on Monday and then weaken as it shifts
south Tuesday. But this high will drive a strong cold front south
across the area Sunday night with much colder air spreading
across the area Monday. Its possible highs on Monday remain in the
30s near the lake and only lower 40s further inland. This cold
front also pushes the precipitation further south faster. In
addition... With the arrival of colder air some change mix with
snow is possible but this system is several days away and its too
early for details... Other then trending colder and windy. Cms

Aviation
For the 18z tafs...

concerns:
- period of rain late tonight, more so on Wednesday
- MVFR ceilings and visibility with the rain
- chance of ifr ceilings getting close to the terminals weds am
quiet conditions will continue this afternoon and tonight as high
clouds spread northeastward ahead of low pressure across the
plains. Southwest winds ahead of the low should keep the lake
breeze confined to the shore line in NE il and even near gyy.

Tonight as low pressure strengthens upstream, winds will back to
south, maybe briefly southeasterly. Winds below 2000 feet may get
to 35 kt which will introduce marginal llws criteria late tonight
into early Wednesday.

Rain will spread in very late tonight into Wednesday. Ceilings
will fall to MVFR, with some ifr certainly possible west of the
main chicago terminals. The rain should be mostly light such that
ifr visibility is not likely or would be short lived. Expect
occasionally gusty SW winds. The rain showers will linger into
the afternoon as we await the surface trough axis, and winds will
slacken one the trough arrives.

Kmd

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
FSTI2 2 mi114 min SE 8.9 42°F
CHII2 - Chicago, IL 4 mi34 min S 6 G 8.9 46°F 26°F
JAKI2 12 mi114 min SSW 8.9 G 14 49°F
CMTI2 - 9087044 - Calumet, IL 16 mi54 min SSW 5.1 G 9.9 48°F 1025.7 hPa (-2.0)24°F
WHRI2 - Waukegan Harbor, IL 30 mi74 min SE 11 G 13 40°F
BHRI3 - Burns Harbor, IN 33 mi54 min WSW 2.9 G 7 47°F 1027.1 hPa (-2.0)
MCYI3 - Michigan City, IN 41 mi34 min NE 7 G 8 41°F 21°F
KNSW3 - Kenosha, WI 45 mi54 min S 13 G 15 39°F 1025.7 hPa (-2.1)

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chicago, Chicago Midway Airport, IL13 mi61 minWSW 1110.00 miMostly Cloudy50°F23°F35%1027 hPa
Chicago, Chicago-O'Hare International Airport, IL14 mi63 minSW 12 G 1610.00 miMostly Cloudy49°F24°F38%1026.3 hPa
Chicago / Wheeling, Pal-Waukee Airport, IL18 mi62 minSSW 710.00 miFair50°F21°F32%1026.9 hPa

Wind History from MDW (wind in knots)
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Last 24hrW11W7W4W4SW5SW5SW5SW5SW4W6W6SW6W5SW5SW5SW6W7W6W8W11
G18
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1 day agoNW11NW10E4S4SE4S3CalmNW8NW6NW6W3NW4NW6NW5W4NW5NW7W4SW4W8NW12NW10
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2 days agoNW9W9NW4E6SE5SE5SE4CalmCalmCalmCalmS3W4SW7W7W8SW8W6W8
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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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GOES Local Image of    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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Chicago, IL (18,4,5,8)
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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.