747
WGUS83 KLOT 051644
FLSLOT
FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHICAGO IL
1144 AM CDT SUN APR 5 2026
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN
ILLINOIS...
ILLINOIS RIVER AT OTTAWA AFFECTING LA SALLE COUNTY.
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 LATE TONIGHT.
ILC099-061045-
/O.EXT.KLOT.FL.W.0010.000000T0000Z-260407T0600Z/
/OTWI2.1.ER.260404T1555Z.260405T1800Z.260407T0000Z.NO/
1144 AM CDT SUN APR 5 2026
..FLOOD WARNING NOW IN EFFECT UNTIL EARLY TUESDAY MORNING
* WHAT...MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* WHERE...ILLINOIS RIVER FROM HERITAGE HARBOR EAST OF OTTAWA
DOWNSTREAM TO STARVED ROCK LOCK AND DAM, INCLUDING THE OTTAWA
GAUGE.
* WHEN...UNTIL EARLY TUESDAY MORNING.
* IMPACTS...AT 464.0 FEET, BACKWATER CAUSES THE FOX RIVER TO REACH
BANKFULL NEAR ST. ELIZABETH MEDICAL CENTER IN OTTAWA.
* ADDITIONAL DETAILS...
- AT 10:30 AM CDT SUNDAY THE STAGE WAS 464.0 FEET.
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS
ENDING AT 10:30 AM CDT SUNDAY WAS 464.1 FEET.
- FORECAST...THE RIVER IS EXPECTED TO RISE TO A CREST OF 464.1
FEET THIS AFTERNOON. IT WILL THEN FALL BELOW FLOOD STAGE
MONDAY EVENING.
- FLOOD STAGE IS 463.0 FEET.
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD
LAT...LON 4137 8898 4137 8879 4130 8879 4128 8899
ILC011-099-155-061045-
/O.EXT.KLOT.FL.W.0006.000000T0000Z-260410T2100Z/
/LSLI2.1.ER.260404T0017Z.260406T0000Z.260410T1500Z.NO/
1144 AM CDT SUN APR 5 2026
..FLOOD WARNING NOW IN EFFECT UNTIL FRIDAY AFTERNOON
* 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 FRIDAY AFTERNOON.
* IMPACTS...AT 22.0 FEET, LOWER PARKING LOT AT STARVED ROCK STATE
PARK IS INUNDATED EAST OF LA SALLE. HIGH WATER LEVELS BEGIN TO
IMPACT SHIPPING INTERESTS ALONG THE RIVER.
* ADDITIONAL DETAILS...
- AT 10:45 AM CDT SUNDAY THE STAGE WAS 23.4 FEET.
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS
ENDING AT 10:45 AM CDT SUNDAY WAS 23.4 FEET.
- FORECAST...THE RIVER IS EXPECTED TO RISE TO A CREST OF 23.6
FEET THIS EVENING. IT WILL THEN FALL BELOW FLOOD STAGE LATE
FRIDAY MORNING.
- FLOOD STAGE IS 20.0 FEET.
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD
LAT...LON 4131 8940 4135 8933 4137 8898 4128 8899
4128 8929
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