577
WGUS63 KLOT 191438
FFALOT
URGENT - IMMEDIATE BROADCAST REQUESTED
FLOOD WATCH
NATIONAL WEATHER SERVICE CHICAGO IL
938 AM CDT SAT SEP 19 2026
...THE NATIONAL WEATHER SERVICE IN CHICAGO HAS ISSUED A FLOOD WATCH
FOR THE FOLLOWING RIVERS IN ILLINOIS...
DES PLAINES RIVER NEAR RUSSELL AFFECTING LAKE IL COUNTY.
DES PLAINES RIVER NEAR GURNEE AFFECTING LAKE IL COUNTY.
DES PLAINES RIVER AT LINCOLNSHIRE AFFECTING COOK AND LAKE IL
COUNTY.
DES PLAINES RIVER NEAR DES PLAINES AFFECTING COOK COUNTY.
DES PLAINES RIVER AT RIVERSIDE AFFECTING COOK COUNTY.
.THE COMBINATION OF HEAVY RAIN THIS MORNING AND EXPECTED ADDITIONAL
THUNDERSTORMS WITH HEAVY RAIN TONIGHT MAY LEAD TO RIVER FLOODING
ALONG THE DES PLAINES RIVER BASIN AS EARLY AS SUNDAY MORNING. THE
HEAVY RAIN TONIGHT IS EXPECTED TO OCCUR ALONG A ROUGHLY WEST TO EAST
AXIS ACROSS NORTHERN ILLINOIS, THOUGH THE EXACT LOCATION ACROSS THE
RIVER BASIN REMAINS UNCERTAIN. FLOODING SEVERITY MAY BE HIGHER OR
LOWER OVER THE BASIN DEPENDING ON THE ULTIMATE PLACEMENT OF THE
HIGHEST RAINFALL TONIGHT.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A FLOOD WATCH MEANS WATER LEVELS ABOVE FLOOD STAGE ARE POSSIBLE, BUT
NOT YET CERTAIN, BASED UPON THE LATEST FORECASTS. PERSONS ALONG
RIVERS AND STREAMS IN THE WATCH AREA SHOULD MONITOR THE LATEST
FORECASTS AND BE PREPARED TO TAKE ACTION SHOULD FLOODING DEVELOP.
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 LATE TONIGHT.
ILZ006-200845-
/O.NEW.KLOT.FL.A.0031.260920T0900Z-000000T0000Z/
/RUSI2.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
938 AM CDT SAT SEP 19 2026
..FLOOD WATCH IN EFFECT FROM LATE TONIGHT UNTIL FURTHER NOTICE
* WHAT...FLOODING IS POSSIBLE.
* WHERE...DES PLAINES RIVER FROM IL/WI STATE LINE DOWNSTREAM TO US-41
IN GURNEE, INCLUDING THE RUSSELL GAUGE.
* WHEN...FROM LATE TONIGHT UNTIL FURTHER NOTICE.
* ADDITIONAL DETAILS...
- AT 8:30 AM CDT SATURDAY THE STAGE WAS 5.1 FEET.
- FORECAST...FLOOD STAGE MAY BE REACHED SUNDAY MORNING.
- FLOOD STAGE IS 7.0 FEET.
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD
LAT...LON 4251 8797 4250 8787 4247 8789 4239 8787
4239 8796 4247 8799
ILZ103-104-200845-
/O.NEW.KLOT.FL.A.0033.260920T1200Z-000000T0000Z/
/DSPI2.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
938 AM CDT SAT SEP 19 2026
..FLOOD WATCH IN EFFECT FROM SUNDAY MORNING UNTIL FURTHER NOTICE
* WHAT...FLOODING IS POSSIBLE.
* WHERE...DES PLAINES RIVER FROM PALATINE ROAD IN PROSPECT HEIGHTS
DOWNSTREAM TO IRVING PARK ROAD IN CHICAGO, INCLUDING THE DES
PLAINES GAUGE.
* WHEN...FROM SUNDAY MORNING UNTIL FURTHER NOTICE.
* ADDITIONAL DETAILS...
- AT 8:45 AM CDT SATURDAY THE STAGE WAS 10.1 FEET.
- FORECAST...FLOOD STAGE MAY BE REACHED BASED ON THE LATEST
FORECAST INFORMATION.
- FLOOD STAGE IS 15.0 FEET.
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD
LAT...LON 4212 8794 4212 8784 4197 8780 4196 8790
ILZ006-200845-
/O.NEW.KLOT.FL.A.0032.260920T1200Z-000000T0000Z/
/GUNI2.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
938 AM CDT SAT SEP 19 2026
..FLOOD WATCH IN EFFECT FROM SUNDAY MORNING UNTIL FURTHER NOTICE
* WHAT...FLOODING IS POSSIBLE.
* WHERE...DES PLAINES RIVER FROM US-41 IN GURNEE DOWNSTREAM TO
TOWNLINE ROAD IN VERNON HILLS, INCLUDING THE GURNEE GAUGE.
* WHEN...FROM SUNDAY MORNING UNTIL FURTHER NOTICE.
* ADDITIONAL DETAILS...
- AT 8:30 AM CDT SATURDAY THE STAGE WAS 3.7 FEET.
- FORECAST...FLOOD STAGE MAY BE REACHED LATE SUNDAY MORNING.
- FLOOD STAGE IS 7.0 FEET.
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD
LAT...LON 4239 8796 4239 8787 4230 8791 4224 8788
4224 8797 4230 8800
ILZ104-200845-
/O.NEW.KLOT.FL.A.0034.260920T1500Z-260922T1200Z/
/RVRI2.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
938 AM CDT SAT SEP 19 2026
..FLOOD WATCH IN EFFECT FROM SUNDAY MORNING TO TUESDAY MORNING
* WHAT...FLOODING IS POSSIBLE.
* WHERE...DES PLAINES RIVER FROM ROOSEVELT ROAD IN FOREST PARK
DOWNSTREAM TO HODGKINS, INCLUDING THE RIVERSIDE GAUGE.
* WHEN...FROM SUNDAY MORNING TO TUESDAY MORNING.
* ADDITIONAL DETAILS...
- AT 8:45 AM CDT SATURDAY THE STAGE WAS 3.2 FEET.
- FORECAST...FLOOD STAGE MAY BE REACHED LATE SUNDAY MORNING.
- FLOOD STAGE IS 7.5 FEET.
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD
LAT...LON 4186 8787 4187 8777 4183 8776 4174 8780
4178 8791 4184 8786
ILZ006-103-200845-
/O.NEW.KLOT.FL.A.0035.260920T2100Z-000000T0000Z/
/LDRI2.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
938 AM CDT SAT SEP 19 2026
...FLOOD WATCH IN EFFECT FROM SUNDAY AFTERNOON UNTIL FURTHER
NOTICE...
* WHAT...FLOODING IS POSSIBLE.
* WHERE...DES PLAINES RIVER FROM TOWNLINE ROAD IN LIBERTYVILLE
DOWNSTREAM TO PALATINE ROAD IN PROSPECT HEIGHTS, INCLUDING THE
LINCOLNSHIRE GAUGE.
* WHEN...FROM SUNDAY AFTERNOON UNTIL FURTHER NOTICE.
* ADDITIONAL DETAILS...
- AT 8:45 AM CDT SATURDAY THE STAGE WAS 7.6 FEET.
- FORECAST...FLOOD STAGE MAY BE REACHED SUNDAY AFTERNOON.
- FLOOD STAGE IS 12.5 FEET.
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD
LAT...LON 4224 8797 4224 8788 4212 8784 4212 8794
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