369
WGUS43 KLOT 110635
FLWLOT
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE CHICAGO IL
135 AM CDT WED MAR 11 2026
...THE NATIONAL WEATHER SERVICE IN CHICAGO IL HAS ISSUED A FLOOD
WARNING FOR THE FOLLOWING RIVERS IN ILLINOIS...
THORN CREEK AT THORNTON AFFECTING COOK COUNTY.
FOR THE THORN CREEK...INCLUDING THORNTON...MINOR FLOODING IS
FORECAST.
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 THIS EVENING.
ILC031-120045-
/O.NEW.KLOT.FL.W.0003.260311T1620Z-260312T1230Z/
/THNI2.1.ER.260311T1620Z.260312T0000Z.260312T0630Z.NO/
135 AM CDT WED MAR 11 2026
..FLOOD WARNING IN EFFECT FROM THIS MORNING TO TOMORROW MORNING
* WHAT...MINOR FLOODING IS FORECAST.
* WHERE...THORN CREEK FROM NEAR GLENWOOD DOWNSTREAM TO CONFLUENCE
WITH LITTLE CALUMET RIVER, INCLUDING THE THORNTON GAUGE.
* WHEN...FROM THIS MORNING TO TOMORROW MORNING.
* IMPACTS...AT 9.0 FEET, WATER BEGINS TO BE DIVERTED THROUGH THORN
CREEK DIVERSION TUNNEL.
* ADDITIONAL DETAILS...
- AT 1:15 AM CDT WEDNESDAY THE STAGE WAS 4.4 FEET.
- FORECAST...THE RIVER IS EXPECTED TO RISE ABOVE FLOOD STAGE
LATE THIS MORNING TO A CREST OF 9.9 FEET THIS EVENING. IT
WILL THEN FALL BELOW FLOOD STAGE JUST AFTER MIDNIGHT TONIGHT.
- FLOOD STAGE IS 9.0 FEET.
- HTTP://WWW.WEATHER.GOV/SAFETY/FLOOD
LAT...LON 4161 8760 4158 8754 4151 8760 4154 8767
BORCHARDT
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