Beach Park, IL Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Beach Park, IL

June 14, 2024 6:30 AM CDT (11:30 UTC) Change Location
Sunrise 5:11 AM   Sunset 8:31 PM
Moonrise 1:16 PM   Moonset 1:14 AM 
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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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LMZ740 Winthrop Harbor To Wilmette Harbor Il- Wilmette Harbor To Northerly Island Il- Northerly Island To Calumet Harbor Il- 258 Am Cdt Fri Jun 14 2024

Today - North winds 5 to 10 kt increasing to 15 to 25 kt. Sunny. Waves around 1 ft building to 2 to 4 ft.

Tonight - North winds 15 to 20 kt becoming northeast and diminishing to 10 to 15 kt. Mostly clear. Waves 2 to 4 ft subsiding to 1 to 3 ft.

Saturday - East winds 10 to 15 kt. Partly cloudy in the morning, then becoming mostly cloudy. Waves 1 to 3 ft.

Saturday night - Southeast winds 10 to 15 kt increasing to 15 to 20 kt overnight. Mostly cloudy in the evening, then becoming partly cloudy. Waves 1 to 2 ft building to 2 to 4 ft.

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7 Day Forecast for Marine Location Near Beach Park, IL
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Area Discussion for - Chicago, IL
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Area Forecast Discussion National Weather Service Chicago/Romeoville, IL 557 AM CDT Fri Jun 14 2024


- Hot and humid conditions next week along with periodic chances for showers and thunderstorms.

Issued at 214 AM CDT Fri Jun 14 2024

Through Saturday:

No notable weather is expected in the area through Saturday as surface high pressure will rule over the Great Lakes going into this weekend. Expect seasonably warm temperatures today, along with abundant sunshine and comfortable humidity levels once the residual moisture from last night's storms is mixed out and shunted southward this morning. A lake breeze will also march inland today and cause high temperatures near the lakeshore to end up being about 10-15 degrees cooler (in the low to mid 70s) than at locations farther inland (low to mid 80s).

Saturday looks similarly quiet as we remain on the southwest periphery of the Great Lakes surface high pressure bubble and an upper-level ridge axis begins to slide over the area. High temperatures should be nearly a carbon copy of what they'll be today, though southeasterly return flow will keep lake cooling efforts focused into Illinois and allow for locales near the northwest Indiana lakeshore to see similar temperature readings to locations that are farther inland. There should be more high-level cloud cover on Saturday compared to today as a result of a subtle shortwave trough cresting the upper-level ridge. Actually wouldn't entirely be surprised if this cloud deck thickened up enough to support some virga over our northwestern CWA late in the day, but dry air in the low and middle levels of the troposphere should preclude any hydrometeors from actually reaching the ground.


Saturday Night through Thursday:

For Sunday, have held onto some slight chances for showers and storms mainly through midday and north of I-80. Several mid-level disturbances and even a larger-scale shortwave are slated to be in our vicinity, and in the presence of appreciably steep mid-level lapse rates, this could support some shower/storm chances.

The main story in the extended remains on the likelihood of building heat and humidity as an anomalously deep upper ridge builds off to our east. There seems to be decent agreement in the general placement of the core of the high at this point, centering across the Mid Atlantic and eventually the Northeast towards the middle and end of next week. This puts us on the western fringes of the primary zone of large scale subsidence and certainly opens the door up for perturbations embedded within the southwesterly flow aloft to be carried across the forecast area. As a result, isolated to scattered storms can't be ruled out, and these would obviously have an impact on temperatures and dewpoints, at least to some degree.

Sunday and Monday may end up being the most uncomfortable days of the stretch as the core of the building high makes its closest approach to the area. There are some significant differences in how guidance is handling afternoon mixing trends within the deepening PBL, however, which is resulting in quite a bit of spread in the high temperature and dewpoint departments. The GFS looks much more like the extended NAM on Sunday with a less mixed boundary layer and much higher dewpoints and lower air temperatures compared to the more deeply-mixing ECMWF, UKMET, and CMC. The differences aren't necessarily trivial either, with dewpoint and air temperature differences near 10 degrees at times. From a heat index perspective though, this may not result in much of a material difference as heat indices would still even out in the mid to upper 90s on Sunday, and then a few degrees higher than that on Monday with a smattering of 100 degree readings in play.
For now, elected to maintain warmer air temperatures and lower dewpoints, in line with the blended offering and the ECMWF, UKMET, and CMC output. This results in uncomfortable conditions, but heat indices largely staying under advisory criteria (105 degrees) on Monday.

Muggy and warm conditions will continue through the middle of the week, although likely not quite to Monday's levels as the the core of the high builds further east into the Northeast US. As mentioned previously, diurnally-driven, isolated pulse convection will be possible given the heat/humidity Monday and Tuesday afternoons. By Wednesday/Thursday a synoptic front will approach from the northwest, which may help to focus a bit more in the way of shower and storm coverage.


Issued at 556 AM CDT Fri Jun 14 2024

The only aviation weather con6cern is a northeast wind shift with a lake breeze and backdoor front.

Light winds will become northwesterly with some intermittent gusts to around 20 knots possible later this morning and afternoon. A lake breeze will result in a northeast wind shift, first at GYY and then at MDW and eventually ORD towards 1-2 PM.
NE winds may gust to about 20 knots for a period this afternoon at the Chicago-area sites. Winds will then ease through the evening and may become northwesterly for a time as a land breeze develops. Winds will then quickly return to east/southeasterly Saturday morning during the ORD/MDW extended TAFs.

Otherwise, VFR conditions are expected with diurnally-building cumulus in the vicinity of the Chicago-area terminals this afternoon.



Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
45186 3 mi20 minS 3.9G3.9 64°F 60°F0 ft
45187 6 mi20 minNW 3.9G5.8 63°F 60°F1 ft
KNSW3 - Kenosha, WI 12 mi30 minNW 4.1G5.1 65°F 29.93
45174 21 mi30 minWSW 1.9G3.9 65°F 63°F0 ft29.9060°F
45199 22 mi60 minNNW 9.7 58°F 60°F1 ft29.96
OKSI2 36 mi90 minNNE 1.9G4.1 72°F
CHII2 - Chicago, IL 37 mi30 minN 12G13 73°F 64°F
45198 38 mi20 minE 7.8G7.8 67°F 63°F0 ft29.95
CNII2 40 mi15 minN 5.1G11 69°F 55°F
MLWW3 - Milwaukee, WI 41 mi20 minN 1.9G2.9 65°F
45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI 46 mi30 minN 3.9G5.8 60°F 59°F29.9358°F
45013 48 mi60 minNW 5.8G7.8 60°F 59°F1 ft29.94
CMTI2 - 9087044 - Calumet, IL 49 mi42 minNNW 5.1G7 69°F 29.9167°F

Wind History for Calumet Harbor, IL
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