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Elev 512 ft, 38.38 °N, 90.06 °W

Waterloo, IL Severe Weather Alertstar_ratehome

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Location: Waterloo, IL
Elevation: 512ft
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River Flood Warning
Issued: 6:03 PM Apr. 30, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL SATURDAY EVENING...

* WHAT...Minor flooding is forecast.

* WHERE...Mississippi River at St. Louis.

* WHEN...Until Saturday evening.

* IMPACTS...At 30.0 feet, Floodwall at Lacledes Landing is closed.
Also at this level, the U.S. Coast Guard may prohibit all
recreational vessel traffic from just above the Chain of Rocks
Canal south entry to just below the mouth of the Meramec River.

* ADDITIONAL DETAILS...
- At 12:00 PM CDT Thursday the stage was 29.3 feet.
- Forecast...The river is expected to rise to a crest of 30.0 feet
early tomorrow afternoon.
- Flood stage is 30.0 feet.



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All Times CDT    Fld   Observed  Forecasts (7:00 am)
Location         Stg     Stage   Fri   Sat   Sun   Mon   Tue

Mississippi River
St. Louis       30.0    29.3    29.9  29.1  26.8  24.2  21.2



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