338 

WGUS83 KLSX 181625

FLSLSX



Flood Advisory

National Weather Service St Louis MO

1125 AM CDT Mon May 18 2026



ILC051-121-182230-

/O.NEW.KLSX.FA.Y.0021.260518T1625Z-260518T2230Z/

/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

Fayette IL-Marion IL-

1125 AM CDT Mon May 18 2026



...FLOOD ADVISORY IN EFFECT UNTIL 530 PM CDT THIS AFTERNOON...



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

  rainfall is expected.



* WHERE...Southern Fayette County in south central Illinois...

  Marion County in south central Illinois...



* WHEN...Until 530 PM CDT Monday.



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



* ADDITIONAL DETAILS...

  - At 1125 AM CDT, Doppler radar indicated heavy rain due to

    thunderstorms. This  is causing urban and small stream flooding.

    Between 1 and 2 inches of rain have fallen.

  - Additional rainfall amounts of 1 to 2 inches are expected over

    the area. This additional rain will result in minor flooding.

  - Some locations that will experience flooding include...

    Centralia, Salem, Sandoval, Wamac, Central City, Odin, Kinmundy,

    Patoka, Farina, Omega, Stephen Forbes Station, Fairman,

    Shobonier, Helm, Tonti, La Clede, Iuka, Junction City, St. Peter

    and Alma.





PRECAUTIONARY/PREPAREDNESS ACTIONS...



Turn around, don't drown when encountering flooded roads. Most flood

deaths occur in vehicles.



&&



LAT...LON 3874 8914 3892 8914 3891 8869 3877 8870

      3848 8870 3848 8914





$$



Walsh






545 

WGUS83 KILX 181654

FLSILX



Flood Advisory

National Weather Service Lincoln IL

1154 AM CDT Mon May 18 2026



ILC025-049-079-182300-

/O.NEW.KILX.FA.Y.0019.260518T1654Z-260518T2300Z/

/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

Clay IL-Effingham IL-Jasper IL-

1154 AM CDT Mon May 18 2026



...FLOOD ADVISORY IN EFFECT UNTIL 6 PM CDT THIS EVENING...



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



* WHERE...A portion of southeast Illinois, including the following 

  counties, Clay, Effingham and Jasper.



* WHEN...Until 600 PM CDT Monday.



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

  Overflowing poor drainage areas. Ponding of water in urban or 

  other areas is occurring or is imminent.



* ADDITIONAL DETAILS...

  - At 1153 AM CDT, Doppler radar indicated heavy rain due to

    thunderstorms. Minor flooding is ongoing or expected to begin

    shortly in the advisory area. Between 1 and 2 inches of rain

    have fallen.

  - Additional rainfall amounts of 1 to 2 inches are expected

    over the area. This additional rain will result in minor

    flooding.

  - Some locations that will experience flooding include...

    Effingham, Newton, Altamont, Teutopolis, Louisville, Watson,

    Dieterich, Edgewood, Mason, Bible Grove, Montrose, Wheeler,

    Hidalgo, Sailor Springs, Heartville, Bogota, Iola, Yale, Rose

    Hill and Hord.

  - http://www.weather.gov/safety/flood



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Turn around, don't drown when encountering flooded roads. Most flood 

deaths occur in vehicles.



&&



LAT...LON 3891 8881 3915 8881 3917 8795 3886 8825

      3875 8835 3870 8870 3891 8869





$$



Barnes






570 

WGUS83 KSGF 181654

FLSSGF



Flood Advisory

National Weather Service Springfield MO

1154 AM CDT Mon May 18 2026



MOC015-085-185-181704-

/O.CAN.KSGF.FA.Y.0015.000000T0000Z-260518T2045Z/

/00000.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

Benton MO-Hickory MO-St. Clair MO-

1154 AM CDT Mon May 18 2026



...FLOOD ADVISORY HAS BEEN REPLACED WITH A FLASH FLOOD WARNING...



The Flood Advisory is replaced by a Flash Flood Warning for portions 

of central and west central Missouri, including the following areas, 

in central Missouri, Benton and Hickory. In west central Missouri, 

St. Clair.



The threat of flooding continues and a Flash Flood Warning is now in 

effect. Please refer to that bulletin for more information.



&&



LAT...LON 3820 9361 3820 9356 3822 9357 3822 9356

      3821 9352 3842 9351 3826 9325 3805 9313

      3789 9333 3781 9354 3781 9357 3783 9358

      3783 9378





$$



JD