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38.96 °N, 89.09 °W

Vandalia, IL Severe Weather Alertstar_ratehome

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Personal Weather Station
Location: Vandalia, IL
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Active Weather Alerts

River Flood Warning
Issued: 1:24 PM Jul. 21, 2025 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY EVENING...

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

* WHERE...Kaskaskia River at Vandalia.

* WHEN...Until Thursday evening.

* IMPACTS...At 23.0 feet, Agricultural levee begins to be slightly
overtopped.  No residences are affected at this level.

* ADDITIONAL DETAILS...
- At 8:00 AM CDT Monday the stage was 19.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:00 AM CDT Monday was 19.0 feet.
- Forecast...The river is expected to rise to a crest of 23.2
feet tomorrow morning. It will then fall below flood stage
Wednesday afternoon.
- Flood stage is 18.0 feet.



&&


Fld   Observed  Forecasts (7:00 am)
Location         Stg    Stage    Tue   Wed   Thu   Fri   Sat

Kaskaskia River
Vandalia       18.0    19.0    23.2  20.8  9.1   4.7   3.7



&&



Extreme Heat Watch
Issued: 8:04 AM Jul. 21, 2025 – National Weather Service
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY AFTERNOON
THROUGH THURSDAY EVENING...

* WHAT...Dangerously hot conditions with heat index values up to 109
possible.

* WHERE...Portions of south central, southwest, and west central
Illinois and northeast Missouri.

* WHEN...From Tuesday afternoon through Thursday evening.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.

* ADDITIONAL DETAILS...The long duration of this event is likely to
worsen heat related impacts, and additional extensions may be
needed beyond Thursday as forecast confidence increases.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

&&

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