Old Mill Creek, IL Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Old Mill Creek, IL

May 28, 2024 9:01 PM CDT (02:01 UTC) Change Location
Sunrise 5:16 AM   Sunset 8:21 PM
Moonrise 12:37 AM   Moonset 9:54 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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LMZ646 Wind Point Wi To Winthrop Harbor Il- 706 Pm Cdt Tue May 28 2024

Tonight - North wind 5 to 10 knots rising to 10 to 15 knots after midnight. Rain showers likely and a chance of Thunderstorms through around midnight, then chance of showers and slight chance of Thunderstorms after midnight. Waves around 1 foot.

Wednesday - North wind 10 to 15 knots becoming north 10 to 15 knots with gusts to around 20 knots in the afternoon. Sunny. Waves 1 to 2 feet building to 3 to 4 feet in the late morning and afternoon.

Wednesday night - North wind 10 to 15 knots becoming 5 to 15 knots late in the evening, then becoming 5 to 10 knots after midnight becoming north 5 to 10 knots early in the morning. Clear. Waves 3 to 4 feet subsiding to 1 to 2 feet early in the morning.

Thursday - Northeast wind 5 to 10 knots. Sunny. Waves 1 to 2 feet.

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7 Day Forecast for Marine Location Near Old Mill Creek, IL
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Area Discussion for - Milwaukee/Sullivan, WI
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Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 801 PM CDT Tue May 28 2024


- Light rain will continue into late tonight.

- Quiet, pleasant weather prevails through mid to late week.

- An active pattern returns this weekend through the beginning of next week, with periods of showers and thunderstorms expected.

Issued 802 PM CDT Tue May 28 2024

Thunder has ended across the region, with just light rain persisting as cold cyclonic flow continues aloft. Rain will continue to percolate into the first part of the overnight, before the responsible mid level shortwave passes through the region. Some patchy fog is possible late tonight in low lying/sheltered locations, but there should be enough wind to mitigate a widespread fog risk.


Issued 351 PM CDT Tue May 28 2024

Tonight through Wednesday night:

Synopsis/Mesoanalysis: Convection is ongoing across southern Wisconsin this afternoon as a shortwave trough crosses the region.
Activity has focused over two general areas through early afternoon.
The first -- tied primarily to increasing DPVA ahead of the encroaching wave -- has remained relatively progressive, and will continue to advance eastward through early evening. A second, more narrow area of activity has persisted along & just west of the I-43 Corridor. Likely initiated by a combination of lift along the lake breeze & increasing forcing ahead of the approaching shortwave, said storms have remained quasi-stationary over the last several hours, with several stations in Ozaukee, Milwaukee, and Racine Counties reporting between 0.50 and 1.00" since noon. Anticipate that said clusters of storms will consolidate into one broad area of activity as the upper disturbance progresses overhead through early evening.
Conditions will dry out tonight as high pressure builds in from the Northern Plains, with quiet weather prevailing through the remainder of the short term period.

Rest Of This Afternoon/Early Evening: Storms will continue across southern Wisconsin, gradually tapering as surface temps cool & the upper disturbance currently overhead shifts east. Hydro is the greatest near-term concern with these storms, particularly within the batch of training activity along & west of Interstate 43. Flood Advisories have been issued for southern Sheboygan, northern Ozaukee, southern Milwaukee, and northeastern Racine Counties through early evening given continued training and multiple observations of 0.50-1.00" of rainfall since Noon. Despite the presence of favorable synoptic scale ascent & instability, an absence of any appreciable effective shear will prevent storms from organizing beyond their currently messy mode. This should preclude severe potential, though an isolated stronger storm with hail is possible given cold mid-level temperatures & attendant 6.5-7 degC/km lapse rates aloft. Gusty winds can't be ruled out in any collapsing cores, particularly over southeastern zones, where the greatest amount of surface heating & steepened low level lapse rates were realized through early afternoon. SPC continues to carry a marginal (level 1/5) risk for severe weather across much of southern Wisconsin in light of this potential. Stay weather aware through early evening, and never drive through flooded roadways.

Tonight: Conditions will quickly quiet down through mid-late evening as surface temps cool and the upper shortwave moves east of the region. Some patchy fog is possible near daybreak in the Wisconsin River Valley.

Wednesday Night: Mostly clear skies and light winds will prevail, allowing for chilly overnight temps in the low 40s over central portions of the region. While not expected to be widespread, an isolated patch of frost can't be ruled out in low-lying areas susceptible to cold air drainage. Frost advisories won't be necessary.


Issued 351 PM CDT Tue May 28 2024

Thursday through Tuesday:

Synopsis: High pressure will remain the predominant synoptic scale feature through the beginning of the period locally. Winds will gradually turn out of the south-southeast through late week as said area of high pressure pushes into the mid-Atlantic states. This will allow high temps to gradually climb through the end of the work week. An upper trough will eject into Saskatchewan on Thursday, progressing across Manitoba toward the western Hudson Bay from Friday into this weekend. The feature will linger over this general vicinity through Sunday, gradually deamplifying moving into the beginning of next week. The aforementioned evolution will allow quasi-zonal flow to prevail across the western Great Lakes through early next week & the conclusion of the long term period.
Perturbations embedded within this upper pattern will combine with increasing moisture locally to support periods of showers and storms from Friday night through the beginning of next week.

Friday Night Through Tuesday: Temperatures will continue to climb in the presence of continued southerly surface flow, with the afternoon update bringing high temps in the 80s back to the region from Sunday through Tuesday. Given the warm temps, increasing low level moisture, and periodically perturbed flow aloft, bouts of showers and storms appear likely. Precise details regarding timing & intensity of any storms remain murky given high amounts of spread apparent in available guidance. Will continue to monitor trends over the coming forecast cycles.


Issued 802 PM CDT Tue May 28 2024

VFR is prevailing across the region this evening, though with pockets of MVFR and even IFR ceilings in a few spots. Light rain will persist into the overnight hours, before ending. Any lower ceilings will lift as well, with VFR expected through the day tomorrow. Winds will generally be from the north through the morning as high pressure builds into the area, before shifting to a more easterly or northeasterly direction in afternoon and evening as an enhanced lake breeze/backdoor cold front moves through.


Issued 351 PM CDT Tue May 28 2024

Scattered showers and thunderstorms are expected through the remainder of this afternoon and the first half of this evening, particularly over the southern two-thirds of the open waters.
Widespread severe weather is unlikely, though a few storms could produce small hail and gusty winds. Breezy northerly winds will prevail on Wednesday, with gusts up to 20 knots possible during the afternoon hours. 1024 mb high pressure will linger across the Great Lakes through late week, resulting in light & variable winds Thursday through Friday. 992 mb low pressure will build into central Canada this weekend, allowing winds to turn generally out of the south. Periods of showers and thunderstorms will return from Friday night through the beginning of next week.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesinHgDewPt
45187 11 mi32 min 55°F 52°F1 ft
KNSW3 - Kenosha, WI 11 mi62 min NNW 4.1G5.1 55°F 29.99
45186 13 mi32 min 56°F 57°F1 ft
45199 23 mi62 min N 18 51°F 55°F1 ft30.03
MLWW3 - Milwaukee, WI 36 mi22 min N 9.9G12 55°F
45013 43 mi62 min NNE 5.8G9.7 52°F 50°F1 ft30.03
OKSI2 44 mi122 min NW 1.9G4.1 61°F
CHII2 - Chicago, IL 45 mi32 min WNW 18G19 64°F 59°F
45198 47 mi32 min N 12G16 61°F 60°F1 ft30.00
CNII2 48 mi17 min W 7G19 59°F 52°F

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherTempDewPtRHinHg
KENW KENOSHA RGNL,WI 8 sm21 minN 0710 smOvercast57°F54°F88%30.00
KUGN WAUKEGAN NATIONAL,IL 8 sm50 minN 0410 smMostly Cloudy55°F54°F94%29.98
KRAC BATTEN INTL,WI 21 sm68 minN 15G226 smOvercast Lt Rain Mist 55°F54°F94%30.01
KBUU BURLINGTON MUNI,WI 22 sm26 minNNW 0810 smOvercast57°F52°F82%30.01
Link to 5 minute data for KENW

Wind History from ENW
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Tide / Current for
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Weather Map
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GEOS Local Image of GreatLakes   

Milwaukee, WI,

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