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Marine Weather and Tide Forecast for Old Mill Creek, IL

February 17, 2025 4:55 AM CST (10:55 UTC) Change Location
Sunrise 6:43 AM   Sunset 5:28 PM
Moonrise 11:52 PM   Moonset 9:45 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- 305 Am Cst Mon Feb 17 2025

.small craft advisory in effect until 3 pm cst this afternoon - .

Early this morning - West wind 15 to 25 knots. Mostly clear. Waves 2 to 4 feet.

Today - West wind 15 to 20 knots becoming 10 to 20 knots late in the morning, then becoming 15 to 20 knots early in the afternoon veering northwest late in the afternoon. Gusts up to 25 knots. Partly Sunny. Waves 1 to 2 feet.

Tonight - Northwest wind 15 to 20 knots. Partly cloudy. Waves 1 to 2 feet building to 2 to 4 feet after midnight.

Tuesday - Northwest wind 15 to 20 knots easing to 10 to 15 knots early in the afternoon, then becoming northwest 10 to 15 knots late in the afternoon. Mostly Sunny. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late morning and afternoon.

Tuesday night - Northwest wind 10 to 15 knots. Mostly cloudy. Waves 1 to 2 feet.
wave heights are for ice free areas.
LMZ600
No data

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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FXUS63 KMKX 171019 AFDMKX

Area Forecast Discussion National Weather Service Milwaukee/Sullivan WI 419 AM CST Mon Feb 17 2025

KEY MESSAGES

- Breezy northwest winds continue through tonight across Lake Michigan. A Heavy Freezing Spray Warning is in effect into Tuesday morning.

- A lengthy period of much colder conditions, with bitterly cold wind chills at times, is expected tonight through Thursday morning.

- For this morning, a Cold Weather Advisory with wind chills of negative 19 to negative 27 degrees is in effect through 11 AM. Minimum air temperatures of 0 to negative 10 degrees.

- For tonight into Tuesday morning, a high end Cold Weather Advisory is in effect. Expecting wind chills of negative 21 to negative 29 degrees, but a few areas of negative 30 degrees or below are possible for a few hours.

SHORT TERM
Issued 419 AM CST Mon Feb 17 2025

Today through Tuesday night:

A Cold Weather Advisory is in effect across all of southern Wisconsin through 11 AM CST this morning for wind chills below negative 20 degrees.

Temperatures continue to drop across southern Wisconsin this morning, with west-northwesterly winds ushering in a deep Arctic airmass. Expecting low temperatures this morning ranging from zero near Lake Michigan to negative 10 degrees in the Wisconsin River Valley. Northwesterly breezes will become gusty shortly after sunrise, bringing widespread wind chills below negative 20 degrees. The lowest wind chill values around negative 27 degrees are expected in southwestern Wisconsin. Wind chill values will recover as temperatures recover midday, with highs in the single digits expected. Still, expect bitterly cold conditions to remain in place, with northwest gusts up to 25 mph in southeastern Wisconsin and up to 20 mph in southwestern Wisconsin. Wind chill values will remain in the negative teens throughout the afternoon.

Tonight, temperatures will quickly fall into the negative teens across inland southern Wisconsin as high pressure builds farther into the area. Expecting wind gusts to diminish after sunset, but consistent northwesterly winds will continue. Even though winds are expected to remain lower tonight into Tuesday morning, the lower temperatures from well within the Arctic airmass will make it much easier to dip into Cold Weather Advisory criteria wind chills. Therefore, have issued a Cold Weather Advisory in effect from 9 PM CST tonight through 12 PM CST Tuesday. A few areas may dip below negative 30 degree wind chills for a couple hours in the early morning hours, specifically in the Fond du Lac to southwestern Wisconsin areas. However, this is highly dependent on winds and confidence is not high enough in wind speeds to warrant any regions of upgrade to an Extreme Cold Warning (criteria negative 30 degrees).

Temperatures and wind chills remain bitterly cold through Tuesday afternoon, with temperatures in the single digits once again. With lower wind speeds Tuesday within the Arctic high pressure, expecting wind chill values in the single digits below zero.

Tuesday night, light northwesterly winds continue, with lows in the negative single digits below zero (single digits above zero along the Lake Michigan coastline). Overnight wind chills in the negative teens are expected, with a few spots potentially seeing negative 20 degree wind chills briefly going into early Wednesday morning.

MH

LONG TERM
Issued 419 AM CST Mon Feb 17 2025

Wednesday through Sunday:

Arctic high pressure slides farther down the Rockies into the central Plains Wednesday into Thursday, with continued northwesterly breezes and highs near 10 degrees on Wednesday, and lows Wednesday night in the single digits below zero away from Lake Michigan. A weak shortwave rounding the 500 mb trough may bring a few snow showers on Wednesday into Wednesday night, but confidence is not high (15-30% chance).

Thursday, high pressure begins to slide eastward following a deepening low off the coast of the mid-Atlantic. Winds shift to become southwesterly, with increasing temperatures into the teens above zero during the day Thursday. As the high becomes stationary and begins to weaken over the mid-Atlantic states, expect southwesterly winds to continue into the weekend, bringing moderate temperatures in the thirties to near 40 degrees Saturday through at least Monday.

MH

AVIATION
Issued 419 AM CST Mon Feb 17 2025

VFR conditions and northwesterly breezes this morning, becoming gusty at 15 to 20 kt at inland terminals and at 20 to 25 kt at Lake Michigan terminals shortly after sunrise. A scattered to broken cloud deck at 2000-4000 ft continues to be expected this afternoon, but generally expecting VFR conditions to prevail.
Flurry potential is very low. If flurries do develop, not anticipating any accumulations. Winds will become less gusty overnight, with any remaining mid-level clouds clearing. Winds remain northwesterly through Tuesday.

MH

MARINE
Issued 419 AM CST Mon Feb 17 2025

A Heavy Freezing Spray Warning remains in effect across the open waters into Tuesday morning as an Arctic airmass builds into Lake Michigan. A Small Craft Advisory is in effect in nearshore regions through this afternoon for gusty northwesterly winds.

Low pressure will continue to move east into the Canadian Maritimes this morning then will slowly fill through Tuesday.
Meanwhile, Arctic high pressure builds into the northern Plains and strengthens into Tuesday. Brisk northwest winds will therefore continue into Tuesday. High pressure then dominates over the northern Plains into Minnesota Tuesday afternoon into Wednesday night, bringing light northwesterly winds.

MH

MKX WATCHES/WARNINGS/ADVISORIES
WI
Cold Weather Advisory
WIZ046-WIZ047-WIZ051-WIZ052-WIZ056- WIZ057-WIZ058-WIZ059-WIZ060-WIZ062-WIZ063-WIZ064-WIZ065- WIZ066-WIZ067-WIZ068-WIZ069-WIZ070-WIZ071-WIZ072 until 11 AM Monday.

Cold Weather Advisory...WIZ046-WIZ047-WIZ051-WIZ052-WIZ056- WIZ057-WIZ058-WIZ059-WIZ060-WIZ062-WIZ063-WIZ064-WIZ065- WIZ066-WIZ067-WIZ068-WIZ069-WIZ070-WIZ071-WIZ072...9 PM Monday to noon Tuesday.

LM
Heavy Freezing Spray Warning
LMZ080-LMZ261-LMZ362-LMZ364- LMZ366-LMZ563-LMZ565-LMZ567-LMZ669-LMZ671-LMZ673-LMZ675- LMZ777-LMZ779-LMZ868-LMZ870-LMZ872-LMZ874-LMZ876-LMZ878 until 9 AM Tuesday.

Small Craft Advisory...LMZ643-LMZ644 until 6 PM Monday.

Small Craft Advisory...LMZ645-LMZ646 until 3 PM Monday.


Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
WHRI2 - Waukegan Harbor, IL 13 mi116 minW 7G9.9 4°F
MLWW3 - Milwaukee, WI 36 mi46 minWNW 8G11 3°F
OKSI2 44 mi116 minWSW 1.9G7 9°F
CHII2 - Chicago, IL 45 mi36 minW 21G23 7°F -4°F
CNII2 48 mi26 minW 8.9G16 6°F -5°F


Wind History for Calumet Harbor, IL
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Milwaukee, WI,





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