Sunday, June13, 2021
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Marine Weather and Tides
Kenilworth, 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 5:12AMSunset 8:29PM Sunday June 13, 2021 9:05 AM CDT (14:05 UTC) Moonrise 7:46AMMoonset 11:25PM Illumination 13% Phase: Waxing Crescent; Moon at 3 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:202106131515;;186456 Fzus53 Klot 130809 Nshlot Nearshore Marine Forecast National Weather Service Chicago/romeoville Il 309 Am Cdt Sun Jun 13 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>742-131515- Winthrop Harbor To Wilmette Harbor- Wilmette Harbor To Northerly Island- Northerly Island To Calumet Harbor- 309 Am Cdt Sun Jun 13 2021
Today..North winds 10 to 15 kt becoming east 5 to 10 kt late in the afternoon. Sunny. Waves 1 ft or less.
Tonight..South winds 5 to 10 kt becoming west 10 to 20 kt after midnight. Mostly clear. Waves 1 ft or less building to 1 to 3 ft after midnight.
Monday..North winds 15 to 25 kt becoming northeast 10 to 20 kt in the afternoon. Sunny. Waves 2 to 4 ft. A small craft advisory may be needed.
Monday night..North winds 10 to 15 kt. Mostly clear. Waves 1 to 3 ft.
LMZ741


7 Day Forecast for Marine Location Near Kenilworth, IL
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location: 42.1, -87.72     debug


Area Discussion for - Chicago, IL
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FXUS63 KLOT 131121 AFDLOT

Area Forecast Discussion National Weather Service Chicago/Romeoville, IL 621 AM CDT Sun Jun 13 2021

SHORT TERM. 303 AM CDT

Through Monday .

Quite the moisture discontinuity effectively bisects our forecast area from northeast to southwest early this morning, with upper 60s/lower 70 degree dewpoints hanging tough south and east of I-55, while low 50 degree readings are spilling in from the north. This trend will continue this morning as high pressure finally builds across most of the region. In the meantime, have added a sliver of patchy fog to the grids near the lake across northwest Indiana where dewpoint depressions are currently running in the 2-3 degree range with thinning mid-level cloud cover.

We're on tap for another warm day with deep mixing to 800 mb supporting highs either side of about 90 degrees or so, but by this afternoon, dewpoints will easily be some 15 to 20 degree below where they've been for quite some time resulting in a much more comfortable day. Onshore winds and a lake breeze will continue to hold immediate lakeside locales in the low to mid 70s today.

A fast-moving upper wave, currently scooting east across Saskatchewan and Manitoba, will shift across the Upper Midwest and Great Lakes region later tonight and on Monday. Forcing with this feature will be impressive, with a coherent swath of robust isentropic upglide through the low and mid-levels pushing overhead and across Lake Michigan. Much drier mid-levels and some degree of warming around 700 mb look to effectively cap any parcels that attempt to freely-ascend when lifted above 800 mb. As such, precipitation chances appear minimal tonight/Monday morning and less than 15% area-wide. A sprinkle or two can't entirely be discounted across northeast Illinois, but don't get that granular in the gridded forecast at this point.

Even though this system won't be overly deep from a surface pressure standpoint, its fast forward progression will support 4-6 mb per 6 hour pressure rises on the backside as the associated cold front charges through the area early on Monday morning. This should support a brief period of stronger winds and gusts, especially across the lake and immediately downwind of it through Monday morning and early afternoon. Have nudged wind gusts up to near 30 mph across our northwest Indiana locales with this forecast package. This brief, but sharp, north to northeast gusty wind shift will also start to build waves in our nearshore more appreciably, yielding some potential for a brief high swim risk on Monday.

Carlaw

LONG TERM. 303 AM CDT

Monday night through Thursday .

Tuesday through Thursday will feature lingering quiescent conditions as (dry) northwest flow aloft prevails. Another sharp wave embedded within this fast mid and upper-tropospheric flow will pivot down the lake on Tuesday sending yet another reinforcing cold front through region. The associated north to northeast winds will be a bit longer lasting than on Monday as with a more favorable fetch across the lake, eliciting what looks to be a larger wave response Tuesday afternoon and overnight.

We'll return to more seasonable temperatures (even a few degrees below normal at times) at the start of the long term period. IN the wake of Tuesday's front, highs will be a few degrees cooler than on Monday, and a further degree or two under that come Wednesday. Our lakeside locales may sit just around 70 degrees or so as persistent north to northeast winds linger. Cool nights are also in store, with a much drier airmass settling in. In fact, mid range guidance (except the seemingly much-too-moist GFS) suggests mid and upper 30 degree dewpoints might be in play on Wednesday! With this in mind, have undercut blended low temperature guidance a bit Monday and Tuesday nights in our typical cool spots across the Fox, Rock, and Kankakee River valleys. Wednesday will see temperatures take a bit of a jump as high pressure starts to retreat to our east, but dry conditions are expected to prevail even as additional moisture sloshes northward under our lingering subsidence inversion.

Carlaw

Thursday night Saturday .

The pattern turns more unsettled toward the latter half of the week as the ridge axis is quickly shunted east of the local area thanks to a southeastward digging upper trough out of west central Canada. This will bring the next best potential for precipitation for the local area. There remains some differences in the long range guidance on the exact placement and strength of the upper level features resulting in differences in timing and precip amounts. In summary, multiple disturbances appear to rotate around a parent upper low with a vort max moving across the Great Lakes region sometime during the Thursday night through Friday night period. The GEFS is quicker with its arrival Thursday night into Friday morning with a much stronger wave, while the Euro Ensembles are further north with the upper low and slower overall, bringing precipitation into the area Friday afternoon and evening. Will continue to further refine the timing of shower and thunderstorm chances as this period gets closer in time.

Southwest to west flow during the first part of the day on Friday should help temperatures warm into the mid to upper 80s before winds turn more northwesterly Friday night. This will make for a return to cooler high temperatures in the lower 80s for the start of the weekend.

Petr

AVIATION. For the 12Z TAFs .

The only aviation weather concerns this TAF period are wind- related.

Light northwest to northeast winds prevail at the TAF sites early this morning. Current expectation is for winds to continue to acquire an east-of-north direction at ORD, MDW, and DPA this morning before a lake breeze turns winds more easterly later this morning and afternoon. At DPA, winds may back to the northwest as mixing commences later this morning before switching easterly later this evening with the lake breeze. At RFD, northwest winds will trend west and eventually southwesterly with time today and this evening.

A fast-moving disturbance, currently approaching the Northwest Angle in Minnesota will drag a cold front across the area very late tonight/early Monday morning. The wind shift with this feature may be a bit messy at ORD/MDW, with an initial northwest shift, followed by gusty northeasterlies which could then trend back northwest with time through Monday morning.

Carlaw

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
45174 4 mi26 min NNW 9.7 G 12 72°F2 ft1015.7 hPa
OKSI2 14 mi126 min N 6 G 8 71°F
CHII2 - Chicago, IL 15 mi36 min NNW 11 G 13 70°F 70°F
CNII2 18 mi21 min N 6 G 11 74°F 65°F
45186 19 mi26 min 9.7 G 12 71°F 70°F1 ft
WHRI2 - Waukegan Harbor, IL 19 mi66 min NE 7 G 8 70°F
JAKI2 23 mi126 min N 8 G 15 72°F
45187 27 mi26 min 72°F 69°F1 ft
CMTI2 - 9087044 - Calumet, IL 27 mi48 min NNW 7 G 13 1015.3 hPa
KNSW3 - Kenosha, WI 34 mi66 min NW 1.9 G 2.9 71°F 1015.9 hPa (+1.7)
BHRI3 - Burns Harbor, IN 44 mi26 min N 2.9 G 4.1 69°F 1016.3 hPa
45170 46 mi26 min 5.8 G 7.8 71°F 2 ft

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chicago / Wheeling, Pal-Waukee Airport, IL10 mi74 minNNW 510.00 miFair72°F62°F71%1015.9 hPa
Chicago, Chicago-O'Hare International Airport, IL13 mi75 minN 710.00 miFair72°F62°F71%1015.2 hPa
Chicago, Chicago Midway Airport, IL21 mi73 minNNE 710.00 miA Few Clouds75°F64°F69%1014.3 hPa
Chicago/Waukegan Regional Airport, IL23 mi71 minVar 310.00 miFair73°F62°F69%1014.7 hPa

Link to 5 minute data for KPWK

Wind History from PWK (wind in knots)
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Last 24hr4NE5E8NE9NE10SE7CalmNW3CalmN6N4NE4N3N3N3N3CalmCalmCalmN4NW4N4N5N4
1 day agoW6NW6N54E6E9E6SE73W7CalmE5NE6NE4NE5NE4E3CalmCalmCalmCalmN3SE3Calm
2 days agoCalmE6NE7E7E7E7E8E76E6E4CalmE4CalmCalmN3CalmCalmCalmCalmCalmCalmCalmSW3

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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