Winthrop Harbor, IL Marine Weather and Tide Forecast
L-36.com
Top   Marine   7-Day   NWS   Buoy   Airport   Tide   Map   GEOS   Radar   TAF  

Marine Weather and Tide Forecast for Winthrop Harbor, IL

June 14, 2024 10:14 AM CDT (15:14 UTC) Change Location
Sunrise 5:11 AM   Sunset 8:31 PM
Moonrise 1:16 PM   Moonset 1:14 AM 
  Print   HELP   Reset   Save   Recall  New
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      HIDE   Help
LMZ646 Wind Point Wi To Winthrop Harbor Il- 905 Am Cdt Fri Jun 14 2024

Rest of today - North wind 10 to 15 knots. Sunny. Waves 1 to 2 feet.

Tonight - North wind 10 to 15 knots becoming northeast 5 to 10 knots after midnight. Clear. Waves 1 to 3 feet.

Saturday - East wind 5 to 10 knots veering southeast in the late morning and early afternoon, then rising to 10 to 15 knots late in the afternoon. Sunny in the morning then becoming partly Sunny. Waves 1 to 2 feet.

Saturday night - Southeast wind 10 to 15 knots becoming southeast 10 to 15 knots with gusts to around 20 knots after midnight, then becoming south 15 to 20 knots early in the morning. Mostly cloudy through around midnight then becoming partly cloudy. Waves 1 to 2 feet building to 2 to 4 feet early in the morning.

LMZ600
No data


7 Day Forecast for Marine Location Near Winthrop Harbor, IL
   Hourly   EDIT   Help   Map   HIDE
NEW! Add second zone forecast


Area Discussion for - Chicago, IL
      HIDE   Help   
NOTE: mouseover dotted underlined text for definition
FXUS63 KLOT 141057 AFDLOT

Area Forecast Discussion National Weather Service Chicago/Romeoville, IL 557 AM CDT Fri Jun 14 2024

KEY MESSAGES

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

DISCUSSION
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.

Ogorek

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.

Carlaw

AVIATION /12Z TAFS THROUGH 18Z SATURDAY/
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.

Carlaw

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




Weather Reporting Stations
   EDIT       HIDE   Help
Stations Dist Age Wind AirWater WavesinHgDewPt
45187 3 mi35 minN 14G19 63°F 60°F1 ft
45186 7 mi35 minSW 14G23 63°F 60°F1 ft
KNSW3 - Kenosha, WI 8 mi75 minN 7G8 64°F 29.97
45199 18 mi75 minNW 9.7 60°F 60°F0 ft30.02
45174 25 mi45 minNNW 5.8G5.8 65°F 63°F1 ft29.9460°F
MLWW3 - Milwaukee, WI 37 mi35 minNE 8.9G9.9 62°F
CHII2 - Chicago, IL 40 mi45 minN 12G13 70°F 64°F
OKSI2 40 mi135 minNNE 5.1G7 69°F
45198 42 mi35 minE 7.8G9.7 65°F 64°F1 ft29.98
45007 - S MICHIGAN 43NM East Southeast of Milwaukee, WI 44 mi45 minNE 7.8G9.7 61°F 60°F29.9858°F
45013 44 mi75 minNE 5.8G7.8 62°F 59°F1 ft30.00
CNII2 44 mi30 minNNE 2.9G8.9 73°F 59°F


Wind History for Calumet Harbor, IL
(wind in knots)    EDIT      HIDE   Help
toggle option: (graph/table)



Airport Reports
    EDIT      HIDE   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KUGN WAUKEGAN NATIONAL,IL 4 sm23 minNNW 0710 smClear77°F57°F50%29.98
KENW KENOSHA RGNL,WI 11 sm21 minNE 1010 smClear79°F63°F58%30.00
KRAC BATTEN INTL,WI 20 sm21 minNE 0810 smClear72°F57°F60%30.01
Link to 1 hour of 5 minute data for KUGN
   
NEW Forecast page for KUGN


Wind History graph: UGN
(wind in knots)
toggle option: (graph/table)


Tide / Current for
   
EDIT   Weekend mode (on/off)   HIDE   Help

Tide / Current for
   EDIT      HIDE   Help

Weather Map
      HIDE   Help


GEOS Local Image of great lakes   
EDIT   HIDE



Milwaukee, WI,




NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE