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Elev 699 ft, 41.18 °N, 89.21 °W

McNabb, IL Severe Weather Alertstar_ratehome

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Personal Weather Station
Location: McNabb, IL
Elevation: 699ft
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Active Weather Alerts

River Flood Warning
Issued: 2:01 AM Apr. 21, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* WHAT...Minor flooding is occurring and forecasted to continue.

* WHERE...Illinois River from Starved Rock Lock and Dam downstream
to confluence with Big Bureau Creek, including the La Salle gauge.

* WHEN...Until further notice.

* IMPACTS...At 22.0 feet, Lower parking lot at Starved Rock State
Park is inundated east of La Salle. High water levels begin to
impact shipping interests along the river.

* ADDITIONAL DETAILS...
- At 8:45 PM CDT Monday the stage was 21.1 feet.
- Forecast...The river is expected to only gradually fall
through the week. It may fall below flood stage by the end of
this week.
- Flood stage is 20.0 feet.
- http://www.weather.gov/safety/flood

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