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Elev 660 ft, 42.48 °N, 87.82 °W

Winthrop Harbor, IL Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: Winthrop Harbor, IL
Elevation: 660ft
Nearby Weather Stations

Active Weather Alerts

Small Craft Advisory
Issued: 8:22 PM Apr. 11, 2026 – National Weather Service
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
4 AM CDT MONDAY...

* WHAT...South winds 15 to 20 kt with gusts up to 30 kt and
waves 4 to 6 ft expected.

* WHERE...Nearshore Waters from Sheboygan to Winthrop Harbor IL.

* WHEN...From 1 AM Sunday to 4 AM CDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

River Flood Warning
Issued: 3:46 PM Apr. 11, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Fox River from Johnsburg downstream to Red Gate Road in
St. Charles, including the Algonquin Lock & Dam tailwater gauge.

* WHEN...Until further notice.

* IMPACTS...At 9.5 feet, Fox River Drive threatened in East Dundee.
Boathouses threatened along the river in Cary.

* ADDITIONAL DETAILS...
- At 10:30 AM CDT Saturday the stage was 9.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 10:30 AM CDT Saturday was 10.0 feet.
- Forecast...The river will continue to gradually fall over the
next few days and is expected to fall below flood stage early
next week.
- Flood stage is 9.5 feet.
- http://www.weather.gov/safety/flood

&&



River Flood Warning
Issued: 3:43 PM Apr. 11, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL EARLY TOMORROW AFTERNOON...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Des Plaines River from US-41 in Gurnee downstream to
Townline Road in Vernon Hills, including the Gurnee gauge.

* WHEN...Until early tomorrow afternoon.

* IMPACTS...At 7.0 feet, Forest land inundated near the river in
Gurnee.

* ADDITIONAL DETAILS...
- At 10:30 AM CDT Saturday the stage was 7.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 10:30 AM CDT Saturday was 7.8 feet.
- Forecast...The river is expected to fall below flood stage
tomorrow morning and continue falling.
- Flood stage is 7.0 feet.
- http://www.weather.gov/safety/flood

&&



River Flood Warning
Issued: 3:43 PM Apr. 11, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL TOMORROW MORNING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Des Plaines River from IL/WI state line downstream to
US-41 in Gurnee, including the Russell gauge.

* WHEN...Until tomorrow morning.

* IMPACTS...At 7.0 feet, Low-lying wetlands and agricultural land is
inundated near the river.

* ADDITIONAL DETAILS...
- At 9:30 AM CDT Saturday the stage was 7.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:30 AM CDT Saturday was 7.5 feet.
- Forecast...The river is expected to fall below flood stage
tomorrow morning and continue falling.
- Flood stage is 7.0 feet.
- http://www.weather.gov/safety/flood

&&



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