Flood Warning
Flood Statement
National Weather Service Lincoln IL
825 PM CDT Tue Aug 18 2026
...The Flood Warning continues for the following rivers in
Illinois...
Illinois River at Beardstown affecting Schuyler, Brown, Morgan
and Cass Counties.
Illinois River near Havana affecting Fulton, Cass and Mason
Counties.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to remain aware of the
latest forecasts and associated flood risk for their area. Stay
tuned for further updates on this flooding situation.
Additional information is available at www.weather.gov.
&&
ILC017-057-125-191730-
/O.CON.KILX.FL.W.0037.000000T0000Z-000000T0000Z/
/HAVI2.1.ER.260816T0245Z.260820T0600Z.000000T0000Z.NO/
825 PM CDT Tue Aug 18 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Illinois River near Havana.
* WHEN...Until further notice.
* ADDITIONAL DETAILS...
- At 7:45 PM CDT Tuesday the stage was 16.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:45 PM CDT Tuesday was 16.3 feet.
- Forecast...The river is expected to rise to a crest of 16.5
feet early Thursday morning.
- Flood stage is 14.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Illinois River
Havana 14.0 16.3 Tue 7 pm CDT 16.4 16.5 16.5
&&
LAT...LON 4053 8988 4047 8980 4034 9002 4012 9017
4018 9023 4039 9010
$$
Deubelbeiss
Flood Statement
National Weather Service Lincoln IL
825 PM CDT Tue Aug 18 2026
...The Flood Warning continues for the following rivers in
Illinois...
Illinois River at Beardstown affecting Schuyler, Brown, Morgan
and Cass Counties.
Illinois River near Havana affecting Fulton, Cass and Mason
Counties.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to remain aware of the
latest forecasts and associated flood risk for their area. Stay
tuned for further updates on this flooding situation.
Additional information is available at www.weather.gov.
&&
ILC009-017-137-169-191730-
/O.CON.KILX.FL.W.0038.000000T0000Z-000000T0000Z/
/BEAI2.1.ER.260818T0330Z.260823T0000Z.000000T0000Z.NO/
825 PM CDT Tue Aug 18 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Illinois River at Beardstown.
* WHEN...Until further notice.
* IMPACTS...At 18.0 feet, Seepage problems begin in the Lost Creek
Drainage and Levee District.
* ADDITIONAL DETAILS...
- At 7:45 PM CDT Tuesday the stage was 14.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:45 PM CDT Tuesday was 14.7 feet.
- Forecast...The river is expected to rise to 16.3 feet
Saturday evening. Additional rises are possible thereafter.
- Flood stage is 14.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Illinois River
Beardstown 14.0 14.7 Tue 7 pm CDT 15.4 15.7 16.1
&&
LAT...LON 4018 9023 4012 9017 4008 9037 3999 9046
3999 9058 4015 9043
$$
Flood Statement
National Weather Service Chicago IL
824 PM CDT Tue Aug 18 2026
...The Flood Warning is extended for the following rivers in
Illinois...
Illinois River at La Salle affecting Putnam, Bureau and La Salle
Counties.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Flood Warning means water levels above flood stage are imminent or
may already be occurring. Persons along rivers and streams in the
warned area should take immediate precautions to protect life and
property.
These forecasts are based on observed precipitation as well as
forecast precipitation 24 hours into the future. Changes to the
rainfall forecast, or any additional rainfall after 24 hours, may
cause changes to these river forecasts.
Additional information is available at www.weather.gov.
The next statement will be issued by Wednesday morning.
&&
ILC011-099-155-191400-
/O.EXT.KLOT.FL.W.0071.000000T0000Z-260819T1400Z/
/LSLI2.1.ER.260816T1015Z.260817T0915Z.260819T0800Z.NO/
824 PM CDT Tue Aug 18 2026
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Illinois River from Starved Rock Lock and Dam downstream to
confluence with Big Bureau Creek, including the La Salle gauge.
* WHEN...Until Wednesday morning.
* IMPACTS...At 20.0 feet, Agricultural areas in La Salle, Spring
Valley, and Peru are inundated.
* ADDITIONAL DETAILS...
- At 7:45 PM CDT Tuesday the stage was 20.3 feet.
- Forecast...The river is expected to fall below flood stage early
Wednesday morning and continue falling.
- Flood stage is 20.0 feet.
- http://www.weather.gov/safety/flood
&&
LAT...LON 4131 8940 4135 8933 4137 8898 4128 8899
4128 8929
$$
Petr
Flood Statement
National Weather Service Lincoln IL
823 PM CDT Tue Aug 18 2026
...The Flood Warning continues for the following rivers in
Illinois...
Sangamon River at Monticello affecting Piatt County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to remain aware of the
latest forecasts and associated flood risk for their area. Stay
tuned for further updates on this flooding situation.
Additional information is available at www.weather.gov.
&&
ILC147-191730-
/O.EXT.KILX.FL.W.0039.000000T0000Z-260821T1000Z/
/MNTI2.2.ER.260816T1055Z.260818T0800Z.260821T0400Z.NR/
823 PM CDT Tue Aug 18 2026
...FLOOD WARNING NOW IN EFFECT UNTIL EARLY FRIDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Sangamon River at Monticello.
* WHEN...Until early Friday morning.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Tuesday the stage was 16.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:00 PM CDT Tuesday was 17.3 feet.
- Forecast...The river is expected to fall below flood stage
late Thursday evening and continue falling to 9.6 feet
Tuesday, August 25.
- Flood stage is 13.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Sangamon River
Monticello 13.0 16.9 Tue 8 pm CDT 15.3 13.2 12.3
&&
LAT...LON 4019 8847 4008 8847 4001 8854 3990 8874
4000 8874 4006 8861
$$
Deubelbeiss
Flood Statement
National Weather Service Lincoln IL
821 PM CDT Tue Aug 18 2026
...The Flood Warning is extended for the following rivers in
Illinois...
Spoon River at Seville affecting Fulton County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to remain aware of the
latest forecasts and associated flood risk for their area. Stay
tuned for further updates on this flooding situation.
Additional information is available at www.weather.gov.
&&
ILC057-191730-
/O.EXT.KILX.FL.W.0036.000000T0000Z-260819T1855Z/
/SEVI2.2.ER.260815T0904Z.260815T2300Z.260819T1255Z.NO/
821 PM CDT Tue Aug 18 2026
...FLOOD WARNING NOW IN EFFECT UNTIL EARLY TOMORROW AFTERNOON...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Spoon River at Seville.
* WHEN...Until early tomorrow afternoon.
* IMPACTS...At 23.0 feet, Easterly access road to Seville inundated.
* ADDITIONAL DETAILS...
- At 7:45 PM CDT Tuesday the stage was 23.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:45 PM CDT Tuesday was 24.7 feet.
- Forecast...The river is expected to fall below flood stage
tomorrow morning and continue falling to 10.1 feet Tuesday,
August 25.
- Flood stage is 22.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Spoon River
Seville 22.0 23.8 Tue 7 pm CDT 19.8 16.6 13.6
&&
LAT...LON 4059 9036 4058 9027 4045 9029 4037 9011
4030 9015 4041 9040
$$
Deubelbeiss
Hazardous Weather Outlook
Hazardous Weather Outlook...UPDATED
National Weather Service Milwaukee/Sullivan WI
753 PM CDT Tue Aug 18 2026
WIZ046-047-051-052-056>060-062>072-200100-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
753 PM CDT Tue Aug 18 2026
This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.
.DAY ONE...Tonight
Thunderstorms are exiting southern WI through 9 PM. Patchy dense
fog is possible west of Madison overnight.
.DAYS TWO THROUGH SEVEN...Wednesday through Tuesday
Chance of thunderstorms Friday.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Des Moines IA
309 PM CDT Tue Aug 18 2026
IAZ004>007-015>017-023>028-192015-
Emmet-Kossuth-Winnebago-Worth-Palo Alto-Hancock-Cerro Gordo-
Pocahontas-Humboldt-Wright-Franklin-Butler-Bremer-
309 PM CDT Tue Aug 18 2026
This Hazardous Weather Outlook is for portions of central Iowa.
.DAY ONE...This afternoon and tonight
A Slight (2 out of 5) Risk for severe weather exists over the
area this evening. Large hail is the primary threat, though
damaging winds and heavy rain are also possible.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
Occasional storm chances persist through the end of the week,
primarily over the southwest half of Iowa on Wednesday and over
northwest Iowa Thursday evening.
.SPOTTER INFORMATION STATEMENT...
Spotter activation may be needed this evening.
$$
Hazardous Weather Outlook
National Weather Service Des Moines IA
309 PM CDT Tue Aug 18 2026
IAZ033>039-044>050-057>062-070>075-081>086-092>097-192015-
Sac-Calhoun-Webster-Hamilton-Hardin-Grundy-Black Hawk-Crawford-
Carroll-Greene-Boone-Story-Marshall-Tama-Audubon-Guthrie-Dallas-
Polk-Jasper-Poweshiek-Cass-Adair-Madison-Warren-Marion-Mahaska-
Adams-Union-Clarke-Lucas-Monroe-Wapello-Taylor-Ringgold-Decatur-
Wayne-Appanoose-Davis-
309 PM CDT Tue Aug 18 2026
This Hazardous Weather Outlook is for portions of central Iowa.
.DAY ONE...This afternoon and tonight
A Marginal (1 out of 5) Risk for severe weather exists over the
area this evening. Damaging winds and heavy rain are the main
threats, while small hail is also possible.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday
Occasional storm chances persist through the end of the week,
primarily over the southwest half of Iowa on Wednesday and over
northwest Iowa Thursday evening.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.
$$
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
218 PM CDT Tue Aug 18 2026
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-191930-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
218 PM CDT Tue Aug 18 2026 /318 PM EDT Tue Aug 18 2026/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Level 1 of 5 Large Hail Risk...up to quarter size.
Limited Flooding Risk.
DISCUSSION...
Thunderstorms developing north of the area this afternoon may
shift in portions of the area this evening before weakening
overnight. The strongest storms will be capable of damaging wind
gusts and torrential rainfall which may lead to localized
flooding.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Wednesday, Friday and Saturday...
Limited Thunderstorm Risk.
.SPOTTER INFORMATION STATEMENT...
Spotters may be needed this evening.
GENERAL STORM MOTION OF THE DAY:
Moving toward the east southeast at 30 to 40 mph.
$$
Hazardous Weather Outlook
National Weather Service Lincoln IL
206 PM CDT Tue Aug 18 2026
ILZ027>031-036>038-040>057-061>063-066>068-071>073-191915-
Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-Schuyler-
Mason-Logan-De Witt-Piatt-Champaign-Vermilion-Cass-Menard-Scott-
Morgan-Sangamon-Christian-Macon-Moultrie-Douglas-Coles-Edgar-Shelby-
Cumberland-Clark-Effingham-Jasper-Crawford-Clay-Richland-Lawrence-
206 PM CDT Tue Aug 18 2026
This Hazardous Weather Outlook is for central Illinois, east
central Illinois, southeast Illinois and west central Illinois.
.DAY ONE...Tonight.
Scattered thunderstorms will affect the area through tonight.
Isolated damaging wind gusts and locally heavy rain are the primary
hazards.
Due to previous heavy rain, several area rivers are in flood.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
Scattered storms will linger over the area Wednesday. Gusty winds and locally
heavy rainfall are the primary hazards, mainly south of I-70.
Several rivers will remain in flood this week.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated tonight.
$$
NMA
Hazardous Weather Outlook
National Weather Service Kansas City/Pleasant Hill MO
0505 AM CDT Tue Aug 18 2026
KSZ025-057-060-102>105-MOZ001>008-011>017-020>025-028>033-037>040-
043>046-053-054-191005-
Atchison KS-Miami-Linn KS-Doniphan-Leavenworth-Wyandotte-Johnson KS-
Atchison MO-Nodaway-Worth-Gentry-Harrison-Mercer-Putnam-Schuyler-
Holt-Andrew-De Kalb-Daviess-Grundy-Sullivan-Adair-Buchanan-Clinton-
Caldwell-Livingston-Linn MO-Macon-Platte-Clay-Ray-Carroll-Chariton-
Randolph-Jackson-Lafayette-Saline-Howard-Cass-Johnson MO-Pettis-
Cooper-Bates-Henry-
0505 AM CDT Tue Aug 18 2026
This hazardous weather outlook is for northwest...north central and
west central Missouri...as well as extreme eastern Kansas.
.DAY ONE...Through tonight.
Please go to https://weather.gov/media/eax/DssPacket.pdf for more information on
potential weather hazards.
.DAYS TWO THROUGH SEVEN...Wednesday through Monday.
The probability for widespread hazardous weather is low.
.KEY MESSAGES...
- Severe thunderstorms are possible today and tonight, with the
most likely timing from late this evening through the
overnight hours.
- Near-normal temperatures likely Wednesday into early next week
with low precipitation chances, mainly early next week.
$$
Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
317 AM CDT Tue Aug 18 2026
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-190830-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
317 AM CDT Tue Aug 18 2026
This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.
.DAY ONE...TODAY AND TONIGHT
Isolated severe thunderstorms are possible late this afternoon
and evening. Damaging winds are the primary threat. Locally
heavy rain is also possible.
.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY
The probability for widespread hazardous weather is low.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is possible this afternoon and evening.
$$
