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Sunday, May 24, 2026 10:47:37

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Areal Flood Advisory 0028
Issued by the St. Louis Forecast Office

Action Issued Starts Expiration
New 2026-05-18 20:56:35 2026-05-18 20:56:00 2026-05-19 00:00:00

Action: New
Issued At: 2026-05-18 20:56:35 

778 
WGUS83 KLSX 190156
FLSLSX

Flood Advisory
National Weather Service St Louis MO
856 PM CDT Mon May 18 2026

ILC005-027-051-119-133-163-189-190500-
/O.NEW.KLSX.FA.Y.0028.260519T0156Z-260519T0500Z/
/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Bond IL-Clinton IL-Fayette IL-Madison IL-Monroe IL-Saint Clair IL-
Washington IL-
856 PM CDT Mon May 18 2026

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

* WHAT...Urban area and small stream flooding caused by excessive
  rainfall is expected.

* WHERE...Southern Bond County in south central Illinois...
  Clinton County in south central Illinois...
  Southwestern Fayette County in south central Illinois...
  Northern Washington County in south central Illinois...
  Southern Madison County in southwestern Illinois...
  Monroe County in southwestern Illinois...
  Saint Clair County in southwestern Illinois...

* WHEN...Until midnight CDT tonight.

* IMPACTS...Minor flooding in low-lying and poor drainage areas.

* ADDITIONAL DETAILS...
  - At 853 PM CDT, Doppler radar indicated heavy rain due to
    thunderstorms. This  will cause urban and small stream flooding.
    Between 2 and 3 inches of rain have fallen with locally higher
    amounts.
  - Thunderstorms that caused flash flooding have moved east.
    Flooding has begun to recede with minor impacts lingering through
    this evening. If you encounter a flooded roadway, do not attempt
    to drive through it.
  - Some locations that will experience flooding include...
    Belleville, Granite City, OFallon, East St. Louis, Collinsville,
    Edwardsville, Fairview Heights, Cahokia, Swansea, Glen Carbon,
    Shiloh, Highland, Troy, Waterloo, Columbia, Maryville, Mascoutah
    and Pontoon Beach.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, dont drown when encountering flooded roads. Most flood
deaths occur in vehicles.

&&

LAT...LON 3855 9025 3861 9018 3867 9018 3873 9021
      3879 9014 3883 8914 3847 8914 3820 9035
      3822 9036 3833 9037 3838 9035 3844 9029


$$

Maples

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