Alert archive / Illinois / River Flood Warnings in 2026
River Flood Warning 13, NWS Lincoln, IL
NWS Lincoln, IL issued this river flood warning at May 18, 2026, 5:58 PM CDT for Lawrence County, Illinois. It took effect at May 19, 2026, 2:24 PM CDT. It was in force for 3 days.
The area
The outline as issued.
The facts
- Issued
- May 18, 2026, 5:58 PM CDT (22:58 UTC)
- In effect from
- May 19, 2026, 2:24 PM CDT
- Expired
- May 22, 2026, 4:00 PM CDT
- In force
- 3 days
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Flood severity
- Minor
County Lawrence County, IL
The radar
The Evansville,IN radar (KVWX), 57 km from the middle of the area, began a volume at 22:57 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The river
Written for the forecast point Embarras River (IL) at Lawrenceville (LAWI2). The gauge peaked at 31.53 ft at May 21, 2026, 6:00 PM CDT.
- Action stage
- 27 ft
- Minor stage
- 30 ft
- Moderate stage
- 37 ft
- Major stage
- 41 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 03346500, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
The text
As transmitted.
795
WGUS43 KILX 182258
FLWILX
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Lincoln IL
558 PM CDT Mon May 18 2026
...The National Weather Service in Lincoln IL has issued a Flood
Warning for the following rivers in Illinois...
Embarras River at Lawrenceville affecting Lawrence 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.
&&
ILC101-191500-
/O.NEW.KILX.FL.W.0013.260519T1924Z-260523T0701Z/
/LAWI2.1.ER.260519T1924Z.260520T1800Z.260523T0100Z.NO/
558 PM CDT Mon May 18 2026
...FLOOD WARNING IN EFFECT FROM TUESDAY AFTERNOON TO EARLY SATURDAY
MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Embarras River at Lawrenceville.
* WHEN...From Tuesday afternoon to early Saturday morning.
* IMPACTS...At 33.0 feet, Kelly's Lake Lane, 1160N, is inundated.
* ADDITIONAL DETAILS...
- At 4:45 PM CDT Monday the stage was 20.7 feet.
- Forecast...The river is expected to rise above flood stage
early tomorrow afternoon to a crest of 32.5 feet early
Wednesday afternoon. It will then fall below flood stage
Friday evening.
- Flood stage is 30.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Tue Wed Thu
Embarras River
Lawrenceville 30.0 20.7 Mon 4 pm CDT 31.3 32.5 31.9
&&
LAT...LON 3885 8786 3885 8773 3869 8759 3862 8765
$$
0710 follow-up statements
779
WGUS83 KILX 190147
FLSILX
Flood Statement
National Weather Service Lincoln IL
847 PM CDT Mon May 18 2026
...The Flood Warning is extended for the following rivers in
Illinois...
Embarras River at Lawrenceville affecting Lawrence County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Persons with interests along this river need to remain aware of the
latest forecasts and associated flood risk for their area. Stay
tuned for further updates on this flooding situation.
Additional information is available at www.weather.gov.
&&
ILC101-191800-
/O.EXT.KILX.FL.W.0013.260520T1127Z-260523T0900Z/
/LAWI2.1.ER.260520T1127Z.260521T1200Z.260523T0300Z.NO/
847 PM CDT Mon May 18 2026
...FLOOD WARNING NOW IN EFFECT FROM WEDNESDAY MORNING TO EARLY
SATURDAY MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Embarras River at Lawrenceville.
* WHEN...From Wednesday morning to early Saturday morning.
* IMPACTS...At 33.0 feet, Kelly's Lake Lane, 1160N, is inundated.
* ADDITIONAL DETAILS...
- At 7:45 PM CDT Monday the stage was 21.3 feet.
- Forecast...The river is expected to rise above flood stage
Wednesday morning to a crest of 31.7 feet Thursday morning.
It will then fall below flood stage late Friday evening.
- Flood stage is 30.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Tue Wed Thu
Embarras River
Lawrenceville 30.0 21.3 Mon 7 pm CDT 27.7 31.1 31.5
&&
LAT...LON 3885 8786 3885 8773 3869 8759 3862 8765
$$
Deubelbeiss423
WGUS83 KILX 191023
FLSILX
Flood Statement
National Weather Service Lincoln IL
523 AM CDT Tue May 19 2026
...The Flood Warning continues for the following rivers in
Illinois...
Embarras River at Lawrenceville affecting Lawrence 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.
&&
ILC101-200230-
/O.EXT.KILX.FL.W.0013.260520T0120Z-260523T0730Z/
/LAWI2.1.ER.260520T0120Z.260521T0600Z.260523T0130Z.NO/
523 AM CDT Tue May 19 2026
...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING TO EARLY SATURDAY
MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Embarras River at Lawrenceville.
* WHEN...From this evening to early Saturday morning.
* IMPACTS...At 33.0 feet, Kelly's Lake Lane, 1160N, is inundated.
* ADDITIONAL DETAILS...
- At 4:45 AM CDT Tuesday the stage was 26.5 feet.
- Forecast...The river is expected to rise above flood stage
this evening to a crest of 32.0 feet early Thursday morning.
It will then fall below flood stage Friday evening.
- Flood stage is 30.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Wed Thu Fri
Embarras River
Lawrenceville 30.0 26.5 Tue 4 am CDT 31.2 32.0 30.9
&&
LAT...LON 3885 8786 3885 8773 3869 8759 3862 8765
$$
37969
WGUS83 KILX 191458
FLSILX
Flood Statement
National Weather Service Lincoln IL
958 AM CDT Tue May 19 2026
...The Flood Warning is extended for the following rivers in
Illinois...
Embarras River at Lawrenceville affecting Lawrence County.
.Rapid river rises continue in response to heavy rain that occurred
on Tuesday. Minor flooding on the lower Embarras River is likely to
develop this evening, and linger into the first part of the weekend.
The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
&&
ILC101-200700-
/O.EXT.KILX.FL.W.0013.260520T0200Z-260523T1536Z/
/LAWI2.1.ER.260520T0200Z.260521T1200Z.260523T0936Z.NO/
958 AM CDT Tue May 19 2026
...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING TO LATE SATURDAY
MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Embarras River at Lawrenceville.
* WHEN...From this evening to late Saturday morning.
* IMPACTS...At 30.0 feet, Minor agricultural flooding begins.
At 33.0 feet, Kelly's Lake Lane, 1160N, is inundated.
* ADDITIONAL DETAILS...
- At 8:45 AM CDT Tuesday the stage was 27.8 feet.
- Forecast...The river is expected to rise above flood stage
late this evening to a crest of 32.1 feet Thursday morning.
It will then fall below flood stage early Saturday morning.
- Flood stage is 30.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Wed Thu Fri
Embarras River
Lawrenceville 30.0 27.8 Tue 8 am CDT 31.4 32.1 31.6
&&
LAT...LON 3885 8786 3885 8773 3869 8759 3862 8765
$$
Geelhart118
WGUS83 KILX 200219
FLSILX
Flood Statement
National Weather Service Lincoln IL
919 PM CDT Tue May 19 2026
...The Flood Warning continues for the following rivers in
Illinois...
Embarras River at Lawrenceville affecting Lawrence County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
&&
ILC101-201830-
/O.EXT.KILX.FL.W.0013.000000T0000Z-260523T0600Z/
/LAWI2.1.ER.260520T1200Z.260521T1200Z.260523T0000Z.NO/
919 PM CDT Tue May 19 2026
...FLOOD WARNING NOW IN EFFECT UNTIL EARLY SATURDAY MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Embarras River at Lawrenceville.
* WHEN...Until early Saturday morning.
* IMPACTS...At 33.0 feet, Kelly's Lake Lane, 1160N, is inundated.
* ADDITIONAL DETAILS...
- At 8:45 PM CDT Tuesday the stage was 29.3 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow morning to a crest of 32.0 feet Thursday morning. It
will then fall below flood stage Friday evening.
- Flood stage is 30.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Wed Thu Fri
Embarras River
Lawrenceville 30.0 29.3 Tue 8 pm CDT 31.6 31.6 30.0
&&
LAT...LON 3885 8786 3885 8773 3869 8759 3862 8765
$$
Copple514
WGUS83 KILX 201428
FLSILX
Flood Statement
National Weather Service Lincoln IL
928 AM CDT Wed May 20 2026
...The Flood Warning continues for the following rivers in
Illinois...
Embarras River at Lawrenceville affecting Lawrence County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
&&
ILC101-210630-
/O.EXT.KILX.FL.W.0013.000000T0000Z-260522T1630Z/
/LAWI2.1.ER.260520T1137Z.260521T1200Z.260522T1030Z.NO/
928 AM CDT Wed May 20 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE FRIDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Embarras River at Lawrenceville.
* WHEN...Until late Friday morning.
* IMPACTS...At 30.0 feet, Minor agricultural flooding begins.
* ADDITIONAL DETAILS...
- At 8:45 AM CDT Wednesday the stage was 30.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:45 AM CDT Wednesday was 30.2 feet.
- Forecast...The river is expected to rise to a crest of 30.9
feet tomorrow morning. It will then fall below flood stage
early Friday morning.
- Flood stage is 30.0 feet.
&&
Fld Observed Forecasts (7 am CDT)
Location Stg Stg Day/Time Thu Fri Sat
Embarras River
Lawrenceville 30.0 30.2 Wed 8 am CDT 30.9 29.9 27.5
&&
LAT...LON 3885 8786 3885 8773 3869 8759 3862 8765
$$
Erwin924
WGUS83 KILX 210156 RRA
FLSILX
Flood Statement
National Weather Service Lincoln IL
856 PM CDT Wed May 20 2026
...The Flood Warning is extended for the following rivers in
Illinois...
Embarras River at Lawrenceville affecting Lawrence County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
&&
ILC101-211800-
/O.EXT.KILX.FL.W.0013.000000T0000Z-260522T1648Z/
/LAWI2.1.ER.260520T1137Z.260521T1200Z.260522T1048Z.NO/
856 PM CDT Wed May 20 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE FRIDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Embarras River at Lawrenceville.
* WHEN...Until late Friday morning.
* IMPACTS...At 30.0 feet, Minor agricultural flooding begins.
* ADDITIONAL DETAILS...
- At 7:45 PM CDT Wednesday the stage was 30.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:45 PM CDT Wednesday was 30.8 feet.
- Forecast...The river is expected to rise to a crest of 31.0
feet tomorrow morning. It will then fall below flood stage
early Friday morning.
- Flood stage is 30.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Thu Fri Sat
Embarras River
Lawrenceville 30.0 30.8 Wed 7 pm CDT 30.8 28.7 26.7
&&
LAT...LON 3885 8786 3885 8773 3869 8759 3862 8765
$$
Copple171
WGUS83 KILX 211534
FLSILX
Flood Statement
National Weather Service Lincoln IL
1034 AM CDT Thu May 21 2026
...The Flood Warning is extended for the following rivers in
Illinois...
Embarras River at Lawrenceville affecting Lawrence County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
&&
ILC101-220745-
/O.EXT.KILX.FL.W.0013.000000T0000Z-260524T1200Z/
/LAWI2.1.ER.260520T1137Z.260522T1800Z.260524T0600Z.NO/
1034 AM CDT Thu May 21 2026
...FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Embarras River at Lawrenceville.
* WHEN...Until Sunday morning.
* IMPACTS...At 33.0 feet, Kelly's Lake Lane, 1160N, is inundated.
* ADDITIONAL DETAILS...
- At 9:45 AM CDT Thursday the stage was 31.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:45 AM CDT Thursday was 31.4 feet.
- Forecast...The river is expected to rise to a crest of 31.9
feet early tomorrow afternoon. It will then fall below flood
stage early Sunday morning.
- Flood stage is 30.0 feet.
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Fri Sat Sun
Embarras River
Lawrenceville 30.0 31.4 Thu 9 am CDT 31.9 31.2 28.6
&&
LAT...LON 3885 8786 3885 8773 3869 8759 3862 8765
$$
Erwin855
WGUS83 KILX 220211
FLSILX
Flood Statement
National Weather Service Lincoln IL
911 PM CDT Thu May 21 2026
...The Flood Warning continues for the following rivers in
Illinois...
Embarras River at Lawrenceville affecting Lawrence County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
&&
ILC101-221815-
/O.CON.KILX.FL.W.0013.000000T0000Z-260524T1200Z/
/LAWI2.1.ER.260520T1137Z.260522T1800Z.260524T0600Z.NO/
911 PM CDT Thu May 21 2026
...FLOOD WARNING REMAINS IN EFFECT UNTIL SUNDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Embarras River at Lawrenceville.
* WHEN...Until Sunday morning.
* IMPACTS...At 33.0 feet, Kelly's Lake Lane, 1160N, is inundated.
* ADDITIONAL DETAILS...
- At 8:45 PM CDT Thursday the stage was 31.5 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:45 PM CDT Thursday was 31.5 feet.
- Forecast...The river is expected to rise to a crest of 31.7
feet early tomorrow afternoon. It will then fall below flood
stage early Sunday morning.
- Flood stage is 30.0 feet.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (7 pm CDT)
Location Stg Stg Day/Time Fri Sat Sun
Embarras River
Lawrenceville 30.0 31.5 Thu 8 pm CDT 31.7 30.7 27.4
&&
LAT...LON 3885 8786 3885 8773 3869 8759 3862 8765
$$
Copple387
WGUS83 KILX 221542
FLSILX
Flood Statement
National Weather Service Lincoln IL
1042 AM CDT Fri May 22 2026
...The Flood Warning continues for the following rivers in
Illinois...
Embarras River at Lawrenceville affecting Lawrence County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
Additional information is available at www.weather.gov.
&&
ILC101-230215-
/O.EXT.KILX.FL.W.0013.000000T0000Z-260523T0215Z/
/LAWI2.1.ER.260520T1137Z.260522T0245Z.260522T2015Z.NO/
1042 AM CDT Fri May 22 2026
...FLOOD WARNING NOW IN EFFECT UNTIL LATE THIS EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Embarras River at Lawrenceville.
* WHEN...Until late this evening.
* IMPACTS...At 30.0 feet, Minor agricultural flooding begins.
* ADDITIONAL DETAILS...
- At 9:45 AM CDT Friday the stage was 30.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:45 AM CDT Friday was 31.5 feet.
- Forecast...The river is expected to fall below flood stage
late this afternoon and continue falling to 19.2 feet Monday,
June 01.
- Flood stage is 30.0 feet.
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Sat Sun Mon
Embarras River
Lawrenceville 30.0 30.9 Fri 9 am CDT 27.0 23.9 22.4
&&
LAT...LON 3885 8786 3885 8773 3869 8759 3862 8765
$$
Erwin627
WGUS83 KILX 222100
FLSILX
Flood Statement
National Weather Service Lincoln IL
400 PM CDT Fri May 22 2026
...The Flood Warning is cancelled for the following rivers in
Illinois...
Embarras River at Lawrenceville affecting Lawrence County.
.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.
ILC101-222200-
/O.CAN.KILX.FL.W.0013.000000T0000Z-260522T2100Z/
/LAWI2.1.ER.260520T1137Z.260522T0245Z.260522T2006Z.NO/
400 PM CDT Fri May 22 2026
...FLOOD WARNING IS CANCELLED...
The Flood Warning is cancelled for
the Embarras River at Lawrenceville.
* ADDITIONAL DETAILS...
- At 3:45 PM CDT Friday the stage was 29.9 feet.
- Forecast...The river is expected to fall to 19.2 feet Monday,
June 01.
- http://www.weather.gov/safety/flood
&&
Fld Observed Forecasts (1 pm CDT)
Location Stg Stg Day/Time Sat Sun Mon
Embarras River
Lawrenceville 30.0 29.9 Fri 3 pm CDT 27.0 23.9 22.4
&&
LAT...LON 3885 8786 3885 8773 3869 8759 3862 8765
$$
CoppleWhat forecasters said that day
The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Lincoln, IL wrote its last area forecast discussion before this river flood warning went out at May 18, 2:23 PM CDT, 3 hours 35 minutes earlier. Its key messages:
- Repeating rounds of showers and storms could cause flash flooding south of a Shelbyville to Paris line through this evening. A Flood Watch is in effect for these areas.
- Additional thunderstorms will develop along an advancing cold front on Tuesday, with a slight risk (level 2 of 5) for severe storms east of Interstate 55. Damaging winds, large hail, and heavy rainfall would be the most likely hazards.
Area forecast discussion, May 18, 2:23 PM CDT, 3 hours 35 minutes before
Area Forecast Discussion National Weather Service Lincoln IL 223 PM CDT Mon May 18 2026 .KEY MESSAGES... - Repeating rounds of showers and storms could cause flash flooding south of a Shelbyville to Paris line through this evening. A Flood Watch is in effect for these areas. - Additional thunderstorms will develop along an advancing cold front on Tuesday, with a slight risk (level 2 of 5) for severe storms east of Interstate 55. Damaging winds, large hail, and heavy rainfall would be the most likely hazards. && .DISCUSSION... Issued at 223 PM CDT Mon May 18 2026 A line of showers and thunderstorms has stalled out south of the I- 72 corridor this afternoon. Although wind shear has increased over this area since this morning, instability has significantly waned and has prevented storms from largely becoming organized. Despite this, cannot completely rule out a strong updraft or two over the next few hours in far southeast Illinois where RAP mesoanalysis shows SBCAPE of 1000+ J/kg. If any strong storms do occur, damaging winds would be possible. The main threat through the evening will be heavy rainfall with PWATS up around 1.5 to 2 inches and hourly rainfall rates up around 1 inch in the heaviest of storms. A Flood Watch has been issued for areas south of a Shelbyville to Paris line through this evening. Further west, additional thunderstorms have developed over the central Plains ahead of a cold front and will track east through tonight, approaching western Illinois sometime after midnight. These storms should weaken as they enter the area due to lack of instability, though they could still produce gusty subsevere winds as they track through the western half of the state. Most of the shower and storm activity should subside by or before daybreak. The cold front will approach the I-55 corridor around midday Tuesday and be the focus for additional storm development by afternoon. However, one limiting factor will be how long cloud cover from the overnight storms lingers, which would ultimately limit our destabilization potential. CAMS suggest destabilization will be most likely in east-central and southeast Illinois by mid to late afternoon in a moderately sheared environment. However, this appears to be highly conditional at this point. If storms do develop, damaging winds, large hail, and heavy rainfall will be the primary concerns. A drier and cooler period shapes up for midweek as high pressure ridging slides through the Upper Midwest. This will be relatively short-lived as upper troughing moves into the central US and shortwave energy sends several rounds of precipitation through Illinois this weekend into early next week. While the severe weather risk appears low through this period, better moisture/instability building by late weekend/early next week will support thunderstorms at times. && .AVIATION /18Z TAFS THROUGH 18Z TUESDAY/... Issued at 1237 PM CDT Mon May 18 2026 Precipitation will continue to slowly spread east along a remnant outflow boundary through the remainder of this afternoon. Although most of the thunderstorm activity should remain south of the airfields, can't completely rule out a low chance for lightning at KSPI and KDEC through about 00Z. After a lull this evening, another wave of storms will approach from the west late tonight into the early morning hours of Tuesday. PROB30 groups remain in place for this potential at all locations. South-southwest winds will be breezy through Tuesday, with gusts between 20-25 kts. && .ILX WATCHES/WARNINGS/ADVISORIES... Flood Watch until 10 PM CDT this evening for ILZ054>057- 061>063-066>068-071>073. && KEY MESSAGES...NMA DISCUSSION...NMA AVIATION...NMA
Hazardous weather outlook, May 18, 2:47 PM CDT, 3 hours 11 minutes before
Hazardous Weather Outlook National Weather Service Lincoln IL 247 PM CDT Mon May 18 2026 ILZ054>057-061>063-066>068-071>073-192000- Moultrie-Douglas-Coles-Edgar-Shelby-Cumberland-Clark-Effingham- Jasper-Crawford-Clay-Richland-Lawrence- 247 PM CDT Mon May 18 2026 This Hazardous Weather Outlook is for central Illinois, east central Illinois and southeast Illinois. .DAY ONE...Tonight. Additional thunderstorms are possible overnight west of I-55. Primary hazards with any stronger storms will be gusty winds and lightning. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Thunderstorms will redevelop ahead of a cold front Tuesday afternoon and evening, mainly east of I-55. Damaging wind gusts, large hail, and heavy rain are all possible. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated through tonight. ILZ027>031-036>038-040>053-192000- Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-Schuyler- Mason-Logan-De Witt-Piatt-Champaign-Vermilion-Cass-Menard-Scott- Morgan-Sangamon-Christian-Macon- 247 PM CDT Mon May 18 2026 This Hazardous Weather Outlook is for central Illinois, east central Illinois and west central Illinois. .DAY ONE...Tonight. Repeated rounds of storms could cause flash flooding through this evening. A Flood Watch is in effect through tonight. .DAYS TWO THROUGH SEVEN...Tuesday through Sunday. Thunderstorms will redevelop ahead of a cold front Tuesday afternoon and evening. Damaging wind gusts, large hail, and heavy rain are all possible. .SPOTTER INFORMATION STATEMENT... Spotter activation is not anticipated through tonight, though rainfall reports are appreciated. NMA
In the hours before
Local storm report, May 18, 3:06 PM CDT, 2 hours 52 minutes before
Preliminary Local Storm Report
National Weather Service Lincoln IL
306 PM CDT Mon May 18 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0245 PM Rain 1 SW Newton 38.98N 88.17W
05/18/2026 M2.63 Inch Jasper IL Mesonet
Mesonet station EW2373 Newton.
0255 PM Rain Effingham County Airpor 39.07N 88.53W
05/18/2026 M2.45 Inch Effingham IL AWOS
AWOS station K1H2 Effingham Arpt.
0245 PM Rain 2 NNE Effingham 39.15N 88.53W
05/18/2026 M2.00 Inch Effingham IL Mesonet
Mesonet station DW5254 Baraboo.
&&Local storm report, May 18, 3:44 PM CDT, 2 hours 14 minutes before
Preliminary Local Storm Report
National Weather Service Lincoln IL
344 PM CDT Mon May 18 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0200 PM Rain Watson 39.03N 88.57W
05/18/2026 M2.37 Inch Effingham IL Cocorahs
Still raining.
&&
BMDLocal storm report, May 18, 3:54 PM CDT, 2 hours 4 minutes before
Preliminary Local Storm Report
National Weather Service Lincoln IL
354 PM CDT Mon May 18 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0330 PM Rain 1 SW Newton 38.98N 88.17W
05/18/2026 M2.80 Inch Jasper IL Mesonet
Mesonet station EW2373 Newton.
0338 PM Rain Watson 39.02N 88.57W
05/18/2026 M2.72 Inch Effingham IL Mesonet
Mesonet station FW0190 Watson.
0335 PM Rain Effingham County Airpor 39.07N 88.53W
05/18/2026 M2.66 Inch Effingham IL AWOS
AWOS station K1H2 Effingham Arpt.
0330 PM Rain 2 NNE Effingham 39.15N 88.53W
05/18/2026 M2.31 Inch Effingham IL Mesonet
Mesonet station DW5254 Baraboo.
0330 PM Rain 3 SW Dundas 38.80N 88.12W
05/18/2026 M1.79 Inch Richland IL Mesonet
Mesonet station FW1422 Olney.
0330 PM Rain Teutopolis 39.13N 88.48W
05/18/2026 M1.74 Inch Effingham IL Mesonet
Mesonet station FW1289 Teutopolis.
0315 PM Rain Edgar County Airport 39.70N 87.67W
05/18/2026 M1.48 Inch Edgar IL AWOS
AWOS station KPRG Edgar Co. Arpt.
0335 PM Rain 1 SW Olney Noble Airpor 38.72N 88.18W
05/18/2026 M1.33 Inch Richland IL AWOS
AWOS station KOLY Olney Noble AP.
0330 PM Rain 1 SW Meredosia 39.82N 90.57W
05/18/2026 M1.02 Inch Morgan IL Mesonet
Mesonet station MROI2 0.8 SW Meredosia.
0300 PM Rain 1 SW Meredosia 39.82N 90.57W
05/18/2026 M1.00 Inch Morgan IL Mesonet
Mesonet station MROI2 0.8 SW Meredosia.
&&Local storm report, May 18, 3:59 PM CDT, 1 hour 59 minutes before
Preliminary Local Storm Report
National Weather Service Lincoln IL
359 PM CDT Mon May 18 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0334 PM Flood Louisville 38.77N 88.50W
05/18/2026 Clay IL Broadcast Media
Flooding of a building just west of downtown
Louisvillle. Side streets have water over
them.
&&Local storm report, May 18, 4:12 PM CDT, 1 hour 46 minutes before
Preliminary Local Storm Report
National Weather Service Lincoln IL
412 PM CDT Mon May 18 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0345 PM Rain 1 SW Newton 38.98N 88.17W
05/18/2026 M2.98 Inch Jasper IL Mesonet
Mesonet station EW2373 Newton.
0400 PM Rain 2 NNE Marshall 39.41N 87.68W
05/18/2026 M1.11 Inch Clark IL Mesonet
Mesonet station AU010 Marshall.
&&Local storm report, May 18, 5:21 PM CDT, 37 minutes before
Preliminary Local Storm Report
National Weather Service Lincoln IL
521 PM CDT Mon May 18 2026
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0445 PM Rain 1 SW Newton 38.98N 88.17W
05/18/2026 M3.07 Inch Jasper IL Mesonet
Mesonet station EW2373 Newton.
0509 PM Rain Watson 39.02N 88.57W
05/18/2026 M2.90 Inch Effingham IL Mesonet
Mesonet station FW0190 Watson.
0500 PM Rain 2 NNE Effingham 39.15N 88.53W
05/18/2026 M2.43 Inch Effingham IL Mesonet
Mesonet station DW5254 Baraboo.
0445 PM Rain Teutopolis 39.13N 88.48W
05/18/2026 M1.89 Inch Effingham IL Mesonet
Mesonet station FW1289 Teutopolis.
0508 PM Rain 2 SSE Clay City 38.66N 88.33W
05/18/2026 M1.02 Inch Clay IL Mesonet
Mesonet station AX448 CLAY CITY.
0500 PM Rain 5 SSW Oxville 39.63N 90.61W
05/18/2026 M1.01 Inch Scott IL Mesonet
Mesonet station FLOI2 Florence.
0508 PM Rain 3 NE Marshall 39.43N 87.65W
05/18/2026 M1.01 Inch Clark IL Mesonet
Mesonet station AP194 Marshall.
&&The office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 8:18 AM CDT | Severe Thunderstorm Warning | ILX | Fulton, Logan, Mason, Peoria, Tazewell | 39 min |
| May 18, 9:24 AM CDT | Severe Thunderstorm Warning | ILX | McLean, Marshall, Woodford | 22 min |
| May 18, 9:36 AM CDT | Severe Thunderstorm Warning | ILX | DeWitt, Macon, Piatt | 39 min |
| May 18, 9:44 AM CDT | Severe Thunderstorm Warning | ILX | Coles, Douglas, Edgar | 46 min |
| May 18, 9:49 AM CDT | Severe Thunderstorm Warning | ILX | Christian, Macon, Shelby | 41 min |
| May 18, 10:20 AM CDT | Severe Thunderstorm Warning | ILX | Champaign, Douglas, Macon, Moultrie, Piatt | 40 min |
| May 18, 10:28 AM CDT | Severe Thunderstorm Warning | ILX | Clay, Effingham, Jasper | 47 min |
| May 18, 11:24 AM CDT | Flood Watch | ILX | Clark, Clay, Coles, Crawford, Cumberland, Douglas and 7 more | 11 hr |
| May 18, 11:54 AM CDT | Areal Flood Advisory | ILX | Clay, Effingham, Jasper | 6 hr |
| May 18, 12:12 PM CDT | River Flood Warning | ILX | Clay, Richland | 7 days |
| May 18, 1:44 PM CDT | Flash Flood Warning | ILX | Clay, Effingham, Jasper | 4 hr |
| May 18, 2:52 PM CDT | Flash Flood Warning | ILX | Clay | 3 hr |
| May 18, 3:23 PM CDT | Areal Flood Advisory | ILX | Clay, Crawford, Jasper, Lawrence, Richland | 3 hr |
| May 18, 5:50 PM CDT | Areal Flood Warning | ILX | Clay, Effingham, Jasper | 15 hr |
Nearby
River Flood Warnings in Illinois, 2026Every river flood warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.