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Flood Advisory — La Salle County, IL
Flood Advisory
Issued
7:58 PM CDT · ven., août 21 2026
Expires
12:00 AM CDT · sam., août 22 2026
Issuing Office
NWS KLOT

Affected Areas

La Salle County, IL

Official Bulletin

739
WGUS83 KLOT 220058
FLSLOT

Flood Advisory
National Weather Service Chicago IL
758 PM CDT Fri Aug 21 2026

ILC099-220500-
/O.NEW.KLOT.FA.Y.0116.260822T0058Z-260822T0500Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
La Salle IL-758 PM CDT Fri Aug 21 2026

...FLOOD ADVISORY IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...

* WHAT...Flooding caused by excessive rainfall is expected.

* WHERE...Southwestern La Salle County in north central Illinois...

* WHEN...Until midnight CDT tonight.

* IMPACTS...Flooding may occur in poor drainage areas. Roads and
  streets may be flooded.

* ADDITIONAL DETAILS...
  - At 756 PM CDT, Doppler radar indicated thunderstorms with rate
    rates up to 2 inches per hour near the town Granville. Minor
    flooding may begin shortly after the onset of heavy rainfall in
    the advisory area.
  - Some locations that will experience flooding include...
    Tonica, Lostant, Rutland, Cedar Point, Dana and Leonore.
  - http://www.weather.gov/safety/flood

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Advisory means minor flooding along waterways and other poor
drainage areas is imminent or may already be occurring. Persons in
the advisory area should use caution and avoid flood waters.

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

&&

LAT...LON 4128 8916 4127 8907 4120 8898 4110 8893
      4093 8893 4093 8905 4110 8905 4110 8916

$$

DK