Friday, April3, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Lincolnwood, IL

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 6:27AMSunset 7:20PM Friday April 3, 2020 12:12 AM CDT (05:12 UTC) Moonrise 1:57PMMoonset 4:08AM Illumination 77% Phase: Waxing Gibbous; Moon at 10 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
    EDIT      (on/off)   Help
LMZ741 Expires:202004031015;;485653 Fzus53 Klot 030244 Nshlot Nearshore Marine Forecast National Weather Service Chicago/romeoville Il 944 Pm Cdt Thu Apr 2 2020 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>742-031015- Winthrop Harbor To Wilmette Harbor- Wilmette Harbor To Northerly Island- Northerly Island To Calumet Harbor- 944 Pm Cdt Thu Apr 2 2020
Rest of tonight..East winds around 5 kt. Slight chance of showers after midnight. Waves 1 ft or less.
Friday..Southeast winds 10 to 15 kt. Partly Sunny. Waves 1 ft or less building to 1 to 3 ft in the afternoon.
Friday night..Southeast winds 10 to 15 kt becoming southwest after midnight. Rain showers likely. Waves 1 to 3 ft.
Saturday..Northwest winds 10 to 15 kt becoming north in the afternoon. Rain showers likely in the morning, then slight chance of showers in the afternoon. Waves 1 to 3 ft.
LMZ741


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


Area Discussion for - Chicago, IL
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS63 KLOT 030457 AFDLOT

Area Forecast Discussion National Weather Service Chicago/Romeoville, IL 1157 PM CDT Thu Apr 2 2020

SHORT TERM. 219 PM CDT

Through Friday .

Temperatures are warming nicely (to around 60) across inland areas this afternoon under mostly sunny skies. While skies have been mostly sunny, expect higher level cloudiness to increase over the area later this afternoon in advance of our next weather system. Skies will thus become mostly cloudy across the area for tonight. A weak mid-level disturbance, noted in the GOES 16 water vapor imagery over northern MO and southern IA, is expected to shift across our area tonight. As it does so, we could have a few light showers develop over northern IL tonight. Overall, this will not be a big deal, but we do have some low end chances for rain overnight, primarily across northern IL.

On Friday we will be awaiting the arrival of a cold front approaching western IL late in the day. Since this front will not move into our western areas until Friday evening, it appears most, if not all of the day Friday will be precipitation free for the area. Instead, it appears the primary threat for rain should hold off until Friday evening. While it is looking dry, there is likely to be more cloud cover around. In spite of this, warmer conditions are expected thanks to a thermal ridge featuring 925 mb temperatures around 11C advecting northward ahead of the approaching front. This should yield afternoon high temperatures into the mid 60s inland from Lake Michigan. Close to the lake, however, onshore winds are likely keep temperatures in the upper 40s to low 50s.

KJB

LONG TERM. 310 PM CDT

Friday Night through Thursday .

A slow moving cold frontal passage will bring rain showers to the area Friday night into Saturday, followed by quiet conditions through Sunday night. Next work week will be mild and unsettled with thunderstorm chances in the first part of the week and then turn cooler later in the week.

Friday Night through Sunday Night:

A narrow plume of anomalous PWATs (about 150-200% of normal) for the time of year of a bit upwards of 1" will be drawn northward with the approach of slow moving cold front from the northwest. A weak frontal wave may initially slow the eastward progress of the front and associated showers. Lower and mid-level convergence and transient frontogenesis along with very modest height falls will drive primarily anafrontal (post-frontal) rain showers. Confidence is high in rain occurrence for the Friday night period, so indicate categorical PoPs gradually translating east-southeastward. Can't completely rule out some embedded thunder, however it appears sub-slight chance mention as instability will be very meager. Relatively steep lapse rates will maximize above 600 mb, so lifting would have to be high up in the column. With probabilistic thunder products sub-mentionable over the area and better chances off to the west/southwest of west/southwest CWA area, opted to remove thunder mention.

There may be some embedded moderate rainfall rates depending on if f-gen is more than transient, with upside potential in rainfall amounts in a narrow swath given presence of well above normal column moisture. NAM hints at this sort of potential, though guidance is mixed. For now, WPC QPF totals around 1/4" appear reasonable and will be able to add detail as needed with subsequent updates. Expansive high pressure ridge building in from the northwest will give the front and associated rain/showers an extra push during the day on Saturday, so there should be fairly quick drying from northwest to southeast across Illinois counties. As such, added some temporal resolution to the PoP grids. Saturday will be 10-15 degrees cooler than Friday away from the lakeshore in the lower to mid 50s and only mid-upper 40s lakeside as winds turn north to northeast behind the front. It appears that Saturday evening through Sunday night will then be dry (minor exception of last showers exiting far southeast early Sunday evening). Sunday will feature partly cloudy skies and moderate back to the mid- upper 50s inland, but stay chilly lakeside in the 40s under continued northeast surface flow.

Castro

Monday through Thursday:

Medium range guidance continues to develop a long wave trough along the west coast early next week, with a broad downstream upper ridge across the eastern CONUS. With quick southwesterly flow aloft, surface low pressure is progged to develop out of the Plains and progress northeast to the western Great Lakes region through mid-week. In the process, a warm front lifts across the region, bringing warmer (potentially 70+ degrees on Tuesday) and more humid air into the region. Shower and thunderstorm potential also increases, with a few periods of unsettled weather likely Monday into early Wednesday.

The pattern is rather messy and thus uncertain as depicted in the guidance and ensembles, with a few to several short-waves traversing the area and large variance on timing. Surface pattern and timing of waves of showers/storms and associated cloud cover will also dictate exactly how mild it gets and possible lakeside cooling. It will take some time to sort out specific details, so confidence is on the low side. Depending on the timing and overall evolution, there may be overlap of stronger flow aloft with sufficient moisture and instability to bring a stronger thunderstorm risk somewhere over the region. It appears that initial cold front passage will occur Tuesday night into Wednesday, possibly followed by a reinforcing shot of cooler air to close out the period. Some guidance indicates a rather stout cold shot for this time of year.

Ratzer/Castro

AVIATION. For the 06Z TAFs . 1157 PM CDT

Light and variable winds with VFR overcast skies will prevail through the overnight hours. A passing shower or two is possible at all but GYY with no obstruction to ceiling or visibility expected. After sunrise, winds will become southeasterly with a reinforcement at MDW/ORD by mid-afternoon with a weak lake-breeze. VFR ceilings may scatter out by mid-afternoon. After sunset tonight, a cold front will sweep through northern Illinois first at RFD/DPA and then at ORD/MDW/GYY. A band of showers is possible along the front, though more impactful will be a downward trend in cigs to low-end MVFR toward the end of the TAF period with pockets of IFR possible. For now, will offer OVC015 with lower cigs possible in later TAF packages. Winds will become northeasterly in the wake of the front, as well. Thunder chances appear low through the entire TAF period.

Borchardt

LOT WATCHES/WARNINGS/ADVISORIES. IL . None. IN . None. LM . None.

Visit us at weather.gov/chicago

Follow us on Facebook, Twitter, and YouTube at: www.facebook.com/NWSChicago www.twitter.com/NWSChicago www.youtube.com/NWSChicago


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
OKSI2 3 mi132 min ESE 4.1 G 7 46°F
CHII2 - Chicago, IL 4 mi42 min S 2.9 G 4.1 41°F 38°F
CNII2 7 mi27 min Calm G 1 42°F 34°F
CMTI2 - 9087044 - Calumet, IL 16 mi54 min NNE 2.9 G 4.1 41°F 1019 hPa38°F
MCYI3 - Michigan City, IN 41 mi42 min E 2.9 G 4.1 46°F 30°F
KNSW3 - Kenosha, WI 45 mi72 min Calm G 1 40°F 1019.6 hPa (-0.0)

Wind History for Calumet Harbor, IL
(wind in knots)    EDIT      (on/off)   Help
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
Last
24hr
E3
E2
SE1
NE3
S1
S2
E2
E1
E1
SE1
NE3
NE6
NE6
NE7
NE6
G10
NE7
NE6
NE6
NE7
E6
E4
E3
E2
NE3
1 day
ago
NW8
G14
NW9
G12
NW10
G16
NW9
G15
NW8
G13
NW9
G13
NW8
G11
NW7
G10
N10
G13
NW9
G13
NW10
G13
NW8
G12
NW9
G12
N9
G12
N12
G15
N9
G13
N6
G9
NE5
NE7
NE5
NE4
NE4
NE3
NE3
2 days
ago
N10
G14
N10
G16
N9
G13
N11
G14
N8
G11
N7
G11
N8
G11
N10
N11
G15
N10
G13
N11
G15
N11
G14
N11
G15
NW11
G18
N13
G18
N12
G16
N11
G15
N11
G14
N10
G15

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chicago, Chicago Midway Airport, IL13 mi19 minE 410.00 miOvercast47°F30°F54%1019.8 hPa
Chicago, Chicago-O'Hare International Airport, IL14 mi21 minN 010.00 miOvercast48°F32°F54%1019.3 hPa
Chicago / Wheeling, Pal-Waukee Airport, IL18 mi20 minN 010.00 miA Few Clouds46°F33°F61%1019.9 hPa

Link to 5 minute data for KMDW

Wind History from MDW (wind in knots)
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
Last 24hrE3CalmCalmCalmS3CalmCalmCalmCalmSE6E6SE4--NE8
G16
E9E9--E8----E7E4E4E4
1 day agoN9N8NW7N6N7N7N5N6N7N7N4NE3N5N7NE11E10NE9E10E9NE4E5E5E4SE3
2 days agoNE12NE9N10N9
G18
N11N13NE8N7N9N10N10N10N10NE11NE11N13N11N11N10N12N10N9N12N7

Tide / Current Tables for
   EDIT   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS 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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Chicago, IL (1,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Chicago, IL
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
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 numerous 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.