791
WGUS83 KLSX 100055
FLSLSX
FLOOD STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
755 PM CDT MON MAR 9 2026
...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN
ILLINOIS...MISSOURI...
KASKASKIA RIVER AT CARLYLE.
BIG RIVER AT BYRNESVILLE.
...THE FLOOD WARNING IS EXTENDED FOR THE FOLLOWING RIVERS IN
MISSOURI...
MERAMEC RIVER AT VALLEY PARK.
MERAMEC RIVER NEAR EUREKA.
...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN
MISSOURI...
MERAMEC RIVER NEAR SULLIVAN.
RIVER FORECASTS ARE BASED ON OBSERVED PRECIPITATION AND FORECAST
PRECIPITATION FOR THE NEXT 48 HOURS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TURN AROUND, DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.
MOTORISTS SHOULD NOT ATTEMPT TO DRIVE AROUND BARRICADES OR DRIVE CARS
THROUGH FLOODED AREAS.
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.
RAINFALL HEAVIER THAN FORECAST COULD CAUSE RIVER LEVELS TO RISE EVEN
HIGHER THAN PREDICTED. THE NATIONAL WEATHER SERVICE WILL MONITOR THIS
DEVELOPING SITUATION AND ISSUE FOLLOW UP STATEMENTS AS CONDITIONS
CHANGE.
THIS PRODUCT, ALONG WITH ADDITIONAL WEATHER AND STREAM INFORMATION,
IS AVAILABLE AT HTTPS://WATER.NOAA.GOV/WFO/LSX
MOC055-221-100200-
/O.CAN.KLSX.FL.W.0001.000000T0000Z-260310T0055Z/
/SLLM7.1.ER.260305T1625Z.260306T0859Z.260309T1700Z.UU/
755 PM CDT MON MAR 9 2026
..FLOOD WARNING IS CANCELLED
THE FLOOD WARNING IS CANCELLED FOR
THE MERAMEC RIVER NEAR SULLIVAN.
* ADDITIONAL DETAILS...
- AT 7:29 PM CDT MONDAY THE STAGE WAS 8.6 FEET.
- FORECAST...THE RIVER IS EXPECTED TO FALL TO 5.7 FEET SUNDAY
EVENING.
ALL TIMES CDT FLD OBSERVED FORECASTS (7:00 AM)
LOCATION STG STAGE WED THU FRI SAT SUN
MERAMEC RIVER
SULLIVAN 11.0 8.6 7.0 7.1 7.4 6.4 5.9
LAT...LON 3801 9122 3807 9126 3816 9116 3828 9110
3832 9097 3839 9091 3839 9082 3825 9092
3823 9105 3808 9111
ILC027-111300-
/O.EXT.KLSX.FL.W.0012.000000T0000Z-260315T1912Z/
/KCAI2.1.ER.260308T0700Z.260309T1515Z.260314T1312Z.NO/
755 PM CDT MON MAR 9 2026
..FLOOD WARNING NOW IN EFFECT UNTIL SUNDAY AFTERNOON
* WHAT...MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* WHERE...KASKASKIA RIVER AT CARLYLE.
* WHEN...UNTIL SUNDAY AFTERNOON.
* IMPACTS...AT 16.5 FEET, NEAR THIS HEIGHT, DOWNSTREAM AGRICULTURAL
FIELDS BEGIN FLOODING.
* ADDITIONAL DETAILS...
- AT 7:30 PM CDT MONDAY THE STAGE WAS 16.8 FEET.
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS ENDING
AT 7:30 PM CDT MONDAY WAS 16.9 FEET.
- FORECAST...THE RIVER IS EXPECTED TO FALL BELOW FLOOD STAGE
SATURDAY MORNING AND CONTINUE FALLING TO 12.8 FEET MONDAY, MARCH
16.
- FLOOD STAGE IS 16.5 FEET.
ALL TIMES CDT FLD OBSERVED FORECASTS (7:00 AM)
LOCATION STG STAGE WED THU FRI SAT SUN
KASKASKIA RIVER
CARLYLE 16.5 16.8 16.8 16.8 16.8 16.8 15.3
LAT...LON 3862 8936 3861 8933 3851 8937 3849 8942
3854 8942
MOC099-189-111300-
/O.EXT.KLSX.FL.W.0006.000000T0000Z-260312T1330Z/
/VLLM7.1.ER.260307T2137Z.260308T1730Z.260311T0730Z.NO/
755 PM CDT MON MAR 9 2026
..FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY MORNING
* WHAT...MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* WHERE...MERAMEC RIVER AT VALLEY PARK.
* WHEN...UNTIL THURSDAY MORNING.
* IMPACTS...AT 19.5 FEET, BUDER PARK AND THE RECREATION PARK AT THE
WATER PLANT FLOODS.
* ADDITIONAL DETAILS...
- AT 7:30 PM CDT MONDAY THE STAGE WAS 19.4 FEET.
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS ENDING
AT 7:30 PM CDT MONDAY WAS 20.3 FEET.
- FORECAST...THE RIVER WILL RISE TO 19.9 FEET TOMORROW MORNING. IT
WILL THEN FALL BELOW FLOOD STAGE EARLY WEDNESDAY MORNING TO 7.0
FEET SATURDAY MORNING. IT WILL RISE TO 7.1 FEET SATURDAY EVENING.
IT WILL THEN FALL AGAIN AND REMAIN BELOW FLOOD STAGE.
- FLOOD STAGE IS 18.0 FEET.
ALL TIMES CDT FLD OBSERVED FORECASTS (7:00 AM)
LOCATION STG STAGE WED THU FRI SAT SUN
MERAMEC RIVER
VALLEY PARK 18.0 19.4 17.1 10.5 7.2 7.0 6.8
LAT...LON 3850 9056 3855 9056 3857 9047 3856 9043
3853 9042 3853 9051
MOC099-189-111300-
/O.EXT.KLSX.FL.W.0005.000000T0000Z-260312T1132Z/
/ERKM7.1.ER.260307T1051Z.260308T0800Z.260311T0532Z.NO/
755 PM CDT MON MAR 9 2026
..FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY MORNING
* WHAT...MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* WHERE...MERAMEC RIVER NEAR EUREKA.
* WHEN...UNTIL THURSDAY MORNING.
* IMPACTS...AT 22.0 FEET, WILLMAN ROAD NEAR THE HIGHWAY 109 BRIDGE
BECOMES INUNDATED AND IMPASSABLE.
* ADDITIONAL DETAILS...
- AT 7:30 PM CDT MONDAY THE STAGE WAS 22.0 FEET.
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS ENDING
AT 7:30 PM CDT MONDAY WAS 22.1 FEET.
- FORECAST...THE RIVER IS EXPECTED TO RISE TO A CREST OF 22.2 FEET
JUST AFTER MIDNIGHT TONIGHT. IT WILL THEN FALL BELOW FLOOD STAGE
EARLY WEDNESDAY MORNING.
- FLOOD STAGE IS 19.0 FEET.
ALL TIMES CDT FLD OBSERVED FORECASTS (7:00 AM)
LOCATION STG STAGE WED THU FRI SAT SUN
MERAMEC RIVER
EUREKA 19.0 22.0 17.5 10.8 9.2 9.3 8.9
LAT...LON 3844 9064 3850 9066 3855 9064 3855 9056
3850 9056
MOC099-110730-
/O.EXT.KLSX.FL.W.0004.000000T0000Z-260311T0723Z/
/BYRM7.2.ER.260306T0803Z.260307T1445Z.260310T0723Z.UU/
755 PM CDT MON MAR 9 2026
..FLOOD WARNING NOW IN EFFECT UNTIL LATE TUESDAY NIGHT
* WHAT...MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* WHERE...BIG RIVER AT BYRNESVILLE.
* WHEN...UNTIL LATE TUESDAY NIGHT.
* IMPACTS...AT 19.0 FEET, DUTCH CREEK ROAD SOUTH OF BYRNESVILLE AND
BYRNESVILLE ROAD NEAR JOHN MCKEEVER ROAD NORTH OF BYRNESVILLE BEGIN
TO FLOOD.
* ADDITIONAL DETAILS...
- AT 6:45 PM CDT MONDAY THE STAGE WAS 18.8 FEET.
- RECENT ACTIVITY...THE MAXIMUM RIVER STAGE IN THE 24 HOURS ENDING
AT 6:45 PM CDT MONDAY WAS 20.2 FEET.
- FORECAST...THE RIVER IS EXPECTED TO FALL BELOW FLOOD STAGE JUST
AFTER MIDNIGHT TONIGHT AND CONTINUE FALLING TO 5.6 FEET MONDAY,
MARCH 16.
- FLOOD STAGE IS 16.0 FEET.
ALL TIMES CDT FLD OBSERVED FORECASTS (7:00 AM)
LOCATION STG STAGE WED THU FRI SAT SUN
BIG RIVER
BYRNESVILLE 16.0 18.8 8.1 7.2 7.6 7.6 6.4
LAT...LON 3833 9061 3833 9067 3839 9067 3843 9062
3847 9064 3848 9059 3846 9056 3841 9057
3840 9061 3837 9062
ELMORE
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