Wednesday, October16, 2019 L-36.com


Marine Weather and Tides
Lincolnwood, IL

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:02AMSunset 6:09PM Wednesday October 16, 2019 5:18 PM CDT (22:18 UTC) Moonrise 7:59PMMoonset 9:36AM Illumination 89% Phase: Waning Gibbous; Moon at 18 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:201910170315;;808709 Fzus53 Klot 161957 Nshlot Nearshore Marine Forecast National Weather Service Chicago/romeoville Il 257 Pm Cdt Wed Oct 16 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>742-170315- Winthrop Harbor To Wilmette Harbor- Wilmette Harbor To Northerly Island- Northerly Island To Calumet Harbor- 257 Pm Cdt Wed Oct 16 2019
.small craft advisory in effect through late tonight...
Tonight..Northwest winds 20 to 25 kt diminishing to 10 to 20 kt late. Mostly cloudy. Waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft late.
Thursday..Northwest winds 10 to 20 kt becoming north 10 to 15 kt in the afternoon. Mostly Sunny. Waves 3 to 5 ft subsiding to 2 to 4 ft in the afternoon.
Thursday night..North winds 5 to 10 kt becoming east after midnight. Mostly clear. Waves 1 to 3 ft.
Friday..Southeast winds 15 to 25 kt. Mostly Sunny. Waves 1 to 3 ft building to 2 to 4 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 162008
afdlot
area forecast discussion
national weather service chicago romeoville, il
308 pm cdt Wed oct 16 2019

Short term
230 pm cdt
through Thursday...

the region remains under cyclonic flow, as the large upper level
low slowly spins across the great lakes. In this pattern,
persistent cloud cover is still in place, with northwest winds
still gusting to 30-35 mph. As the previous forecast noted, there
have been some holes in the stratus this afternoon, that I think
may become larger this afternoon into the evening. Daytime mixing
likely allowing some drier air aloft to filter down and help erode
some of the cloud cover, with this possibly continuing this
afternoon. Additionally, there looks to be some diurnal component
to the cloud cover, with some additional scattering going into
this evening appearing possible. If this stratus doen't completely
erode, upstream mid high clouds noted on satellite imagery will
move overhead and provide cloudy skies this evening. This
moisture does look to remain fairly progressive though, with some
clearing across north central possibly occurring late tonight
into Thursday morning. Meanwhile, northwest winds will continue
but will see speeds gusts diminish this evening. Under at least
partly cloudy skies and lighter winds tonight, do think some
locations across north central il will see lows in the mid upper
30s. With this potential setup, did add patchy frost to the
forecast. WAA really ramps up on Thursday with temps rising to the
mid upper 30s, with lighter winds and sunnier conditions
expected.

Rodriguez

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

by Thursday night, upper ridging will begin to build across the
mississippi valley while a long wave trough digs into the western
conus, bringing the pattern chance toward more warmer conditions for
the local area. In general, there is good agreement in the various
models in lifting short wave energy out of the western trough and
across the area Saturday. Latest guidance is indicating a bit
higher QPF pops and have increased pops generally to likely, tied to
the timing of the enhanced forcing of the mid-level short wave and
the associated cold frontal passage. Showers will be likely with a
slight chance of thunderstorms during the daytime hours. With a
more pacific air mass spreading across the region in the wake of the
front, generally looking for near to slightly above normal temps
this weekend into next week. With a relatively warm, moist air mass
in place, the next system expected to impact the region early next
week will bring the potential for another round of showers and
thunderstorms for late Sunday night through Tuesday.

Aviation
For the 18z tafs...

vfr ceilings and northwest winds gusts in place early this
afternoon, and this looks to remain for much of the forecast
period. Have observed these ceilings rise over the last several
hours, with this trend continuing this afternoon into the early
evening. Some scattering of the current stratus deck in place
might occur later today, but with upstream mid high clouds
expected to move overhead later this evening. Gusts well in the 20
kt range will persist this afternoon, but will continue to observe
a diminishing trend before gusts end completely this evening.

Rodriguez

Marine
242 am cdt
northwesterly gales will develop early this morning, with peak
speeds gusts this morning around 35 kt for the illinois nearshore
and around 40 kt for the indiana nearshore. The northwest gales
will ease by about mid day today for the illinois nearshore and
likely by sunset for the indiana nearshore. Waves will build to 10
to 14 ft along the indiana nearshore by mid day today, particularly
from burns harbor to michigan city. Hazardous waves for small craft
will linger through late tonight for the illinois nearshore and
through mid to late Thursday afternoon for the indiana nearshore.

Castro

Lot watches warnings advisories
Il... None.

In... Lakeshore flood advisory... Inz002 until 9 pm Wednesday.

Lm... Small craft advisory... Il nearshore waters until 4 am Thursday.

Gale warning... In nearshore waters until 7 pm Wednesday.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHII2 - Chicago, IL 4 mi28 min WNW 17 G 19 52°F 38°F
CNII2 7 mi18 min WNW 8.9 G 16 51°F 35°F
45174 13 mi28 min WNW 16 G 19 50°F6 ft1014.2 hPa
CMTI2 - 9087044 - Calumet, IL 16 mi48 min WNW 8 G 14 51°F 1013.8 hPa36°F
45186 30 mi18 min W 16 G 19 51°F 49°F5 ft
BHRI3 - Burns Harbor, IN 33 mi18 min NW 11 G 15 51°F 1014.2 hPa (+1.0)
45170 38 mi18 min WNW 18 G 23 50°F 53°F10 ft42°F
MCYI3 - Michigan City, IN 41 mi28 min WNW 22 G 26 50°F 41°F
KNSW3 - Kenosha, WI 45 mi18 min NW 13 G 17 51°F 1013.9 hPa (+0.7)

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chicago, Chicago Midway Airport, IL13 mi25 minWNW 1310.00 miMostly Cloudy52°F35°F53%1015 hPa
Chicago, Chicago-O'Hare International Airport, IL14 mi27 minWNW 12 G 1910.00 miMostly Cloudy51°F35°F54%1014.8 hPa
Chicago / Wheeling, Pal-Waukee Airport, IL18 mi26 minNW 14 G 1910.00 miOvercast53°F35°F51%1015.1 hPa

Link to 5 minute data for KMDW

Wind History from MDW (wind in knots)
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Last 24hrSW10W9NW20
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NW12NW18
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1 day agoSW6S3S3SE5S5S5SE4E4E3SE3SE4SE6SE7SE8S11S11S9
G22
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2 days agoNW12W10
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NW8W7NW7NW6W8W7W7W6W6W5W6W6NW9W8W9W10W9
G16
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G15
W6SW9

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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wmap_A
GEOS Local Image of Midwest    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.