Tuesday, September28, 2021
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Marine Weather and Tides
North Riverside, IL

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:44AMSunset 6:39PM Tuesday September 28, 2021 12:33 PM CDT (17:33 UTC) Moonrise 11:08PMMoonset 2:15PM Illumination 52% Phase: Third Quarter Moon; Moon at 22 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:202109282115;;313985 Fzus53 Klot 281424 Nshlot Nearshore Marine Forecast National Weather Service Chicago/romeoville Il 924 Am Cdt Tue Sep 28 2021 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>742-282115- Winthrop Harbor To Wilmette Harbor- Wilmette Harbor To Northerly Island- Northerly Island To Calumet Harbor- 924 Am Cdt Tue Sep 28 2021
Rest of today..Northeast winds 10 to 15 kt. Sunny. Waves 3 to 5 ft subsiding to 1 to 3 ft.
Tonight..Northeast winds 5 to 10 kt becoming southeast after midnight. Clear. Waves 1 to 2 ft.
Wednesday..Southeast winds 5 to 10 kt becoming east around 10 kt in the afternoon. Sunny. Waves 1 to 2 ft.
Wednesday night..Northeast to east winds 5 to 10 kt. Mostly clear. Waves around 1 ft.
LMZ741


7 Day Forecast for Marine Location Near North Riverside, IL
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location: 41.84, -87.82     debug


Area Discussion for - Chicago, IL
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FXUS63 KLOT 281106 AFDLOT

Area Forecast Discussion National Weather Service Chicago/Romeoville, IL 606 AM CDT Tue Sep 28 2021

SHORT TERM. 140 AM CDT

Through Wednesday .

Much cooler conditions will prevail today across our lake-adjacent locales in the wake of yesterday's cold front. With lake temperatures now in the low to mid 60s, high temperatures in the immediately lakeside will top out in the upper 60s to near 70 degrees, with low 80 degree readings farther inland. Patchy fog will be possible roughly south of I-80 this morning, and there's some potential for low cloud cover to expand briefly across northeast Illinois and northwest Indiana, but sunny skies are expected area-wide this afternoon. Seasonably cool conditions tonight, with a smattering of upper 40/near 50-degree readings in outlying locales.

Slightly deeper mixing on Wednesday will support high temperatures rising back into the mid and upper 80s across our western locales, while east winds and an afternoon lake breeze will hold Illinois lakeside locations in the lower 70s.

Carlaw

LONG TERM. 159 AM CDT

Wednesday night through Monday .

An unseasonably strong and highly-amplified ridge will remain a prominent feature across the Upper Mississippi Valley through the end of the week, though deep troughing across the western CONUS will begin to erode the ridge late this week and especially through the weekend. Guidance continues to vary on the how quickly the ridge breaks down, with the GFS/GEFS remaining the early outlier by deamplifying the ridge by Friday morning. Will maintain a dry forecast through at least Friday afternoon, as the strength of the upper ridge and antecedent dry air mass should stave off precip from an increasingly sheared wave tracking NNE through the central Great Plains.

Unsettled weather looks to become more likely this weekend as the ridge fully erodes and the southern extent of the western trough drifts northeast across the central CONUS. A stream of higher moisture with this system should promote better rain chances across the area as this occurs, though cohesive forcing throughout the column will remain absent. Periods of light rain are possible through the weekend, with consensus guidance from the 00Z suite favoring later Saturday into Sunday morning.

The potential formation of a Rex block across the central CONUS early next week will greatly complicate the forecast, with conditions highly dependent on where a potential closed low develops in the vicinity of the Great Lakes. Either way, seasonable to seasonably warm conditions should continue into the first week of October.

Kluber

AVIATION. For the 12Z TAFs .

NE to ENE winds around 10 knots will continue through this evening before veering SE under 10 knots by daybreak Wednesday. A shallow deck of low-end MVFR stratus currently developing over northeast Illinois should mix out by late this morning, leading to VFR conditions through the remainder of the period.

Kluber

LOT WATCHES/WARNINGS/ADVISORIES. IL . Beach Hazards Statement . ILZ006-ILZ103-ILZ104 until 1 PM Tuesday.

IN . Beach Hazards Statement . INZ001-INZ002 until 1 PM Tuesday.

LM . Small Craft Advisory . nearshore waters until 10 AM Tuesday.



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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CNII2 11 mi19 min NE 6 G 8 67°F 55°F
OKSI2 12 mi94 min E 5.1 G 5.1 65°F
45198 14 mi34 min NE 7.8 G 9.7 64°F 64°F3 ft58°F
JAKI2 14 mi94 min ENE 5.1 G 7 65°F
CMTI2 - 9087044 - Calumet, IL 17 mi46 min NE 7 G 8.9 1015.4 hPa
45174 22 mi34 min ENE 5.8 G 9.7 66°F3 ft1016.5 hPa (+0.7)
WHRI2 - Waukegan Harbor, IL 36 mi94 min E 7 G 8
45186 37 mi34 min 5.8 G 7.8 65°F 65°F1 ft
BHRI3 - Burns Harbor, IN 38 mi54 min NNE 5.1 G 6 64°F 1016.9 hPa
45187 45 mi34 min ENE 3.9 G 5.8 66°F 65°F2 ft
45170 46 mi44 min N 5.8 G 7.8 2 ft
MCYI3 - Michigan City, IN 49 mi34 min N 8.9 G 9.9 66°F 1016.2 hPa (+0.0)55°F

Wind History for Calumet Harbor, IL
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SW4
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SW9
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G18
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W8
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G11
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G12
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G11
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G16
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G14

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chicago, Chicago Midway Airport, IL5 mi41 minE 1010.00 miFair71°F50°F47%1016 hPa
Chicago, Chicago-O'Hare International Airport, IL11 mi43 minE 810.00 miA Few Clouds72°F53°F52%1016.4 hPa
Chicago / Wheeling, Pal-Waukee Airport, IL19 mi42 minVar 610.00 miFair70°F53°F55%1017.1 hPa
Lewis University Airport, IL22 mi39 minE 410.00 miFair73°F54°F52%1016.6 hPa
Chicago / West Chicago, Dupage Airport, IL24 mi42 minE 7 G 1610.00 miFair72°F50°F46%1016.2 hPa

Link to 5 minute data for KMDW

Wind History from MDW (wind in knots)
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Last 24hrW9
G19
W7
G15
SW10NW9W6NE15NE13N8NE12N10
G18
N9N9N8NE9N9NE10NE9NE9E9E10E13E9NE8E10
1 day agoSW15
G25
SW17
G28
SW17
G27
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G29
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G25
S10S12
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SW10SW7SW8SW7SW7SW10W14
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2 days agoW12
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W10W16
G24
W11W12
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W10W8SW7SW6SW6SW8SW9SW7SW6SW9SW11SW8SW8SW7W11W13W10
G17
SW14
G20

Tide / Current Tables for
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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