Alert archive / Missouri / River Flood Warnings in 2025
River Flood Warning 5, NWS St. Louis, MO
NWS St. Louis, MO issued this river flood warning at Apr 3, 2025, 10:53 AM CDT for Jefferson County, Missouri. It took effect at Apr 5, 2025, 12:33 AM CDT. It was in force for 3 days.
The area
The outline as issued.
The facts
- Issued
- Apr 3, 2025, 10:53 AM CDT (15:53 UTC)
- In effect from
- Apr 5, 2025, 12:33 AM CDT
- Expired
- Apr 8, 2025, 9:02 AM CDT
- In force
- 3 days
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- Moderate
County Jefferson County, MO
The radar
The St Louis radar (KLSX), 35 km from the middle of the area, began a volume at 15:55 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 Big River at Byrnesville (BYRM7). The gauge peaked at 23.90 ft at Apr 7, 2025, 1:00 AM CDT.
- Action stage
- 13 ft
- Minor stage
- 16 ft
- Moderate stage
- 20 ft
- Major stage
- 28 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 07018500, 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.
856
WGUS43 KLSX 031553
FLWLSX
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service St Louis MO
1053 AM CDT Thu Apr 3 2025
...The National Weather Service in St Louis has issued a Flood
Warning for the following rivers in Missouri...
Meramec River near Sullivan.
Big River at Byrnesville.
Meramec River near Steelville.
Meramec River near Eureka.
Meramec River at Pacific.
Meramec River at Valley Park.
Bourbeuse River at Union.
Meramec River near Arnold.
Meramec River at Fenton.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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
&&
MOC055-221-050400-
/O.NEW.KLSX.FL.W.0004.250405T0357Z-250410T1500Z/
/SLLM7.2.ER.250405T0357Z.250406T1800Z.250409T0834Z.NO/
1053 AM CDT Thu Apr 3 2025
...FLOOD WARNING IN EFFECT FROM FRIDAY EVENING TO THURSDAY MORNING...
* WHAT...Moderate flooding is forecast.
* WHERE...Meramec River near Sullivan.
* WHEN...From Friday evening to Thursday morning.
* IMPACTS...At 28.0 feet, Springer Road off of Sappington Bridge
Road begins flooding near this height.
* ADDITIONAL DETAILS...
- At 10:29 AM CDT Thursday the stage was 5.8 feet.
- Forecast...The river is expected to rise above flood stage
late tomorrow evening to a crest of 28.5 feet early Sunday
afternoon. It will then fall below flood stage early
Wednesday morning.
- Flood stage is 11.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Meramec River
Sullivan 11.0 5.8 6.1 18.0 28.4 25.3 15.9
&&
LAT...LON 3801 9122 3807 9126 3816 9116 3828 9110
3832 9097 3839 9091 3839 9082 3825 9092
3823 9105 3808 9111
$$
MOC099-050400-
/O.NEW.KLSX.FL.W.0005.250405T0533Z-250410T0300Z/
/BYRM7.2.ER.250405T0533Z.250407T0600Z.250409T0307Z.UU/
1053 AM CDT Thu Apr 3 2025
...FLOOD WARNING IN EFFECT FROM LATE FRIDAY NIGHT TO WEDNESDAY
EVENING...
* WHAT...Moderate flooding is forecast.
* WHERE...Big River at Byrnesville.
* WHEN...From late Friday night to Wednesday evening.
* IMPACTS...At 26.0 feet, Based on NWC stage-based categorical flood
inundation mapping, at this height water will begin flooding the
outfields of the 2 easternmost ball fields at the Northwest
Jefferson County Sports Complex.
* ADDITIONAL DETAILS...
- At 9:45 AM CDT Thursday the stage was 6.8 feet.
- Forecast...The river is expected to rise above flood stage
early Saturday morning to a crest of 26.9 feet early Monday
morning. It will then fall below flood stage late Tuesday
evening.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Big River
Byrnesville 16.0 6.8 7.6 19.1 22.9 26.8 21.0
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$
MOC055-050400-
/O.NEW.KLSX.FL.W.0006.250405T0750Z-250409T1100Z/
/SEEM7.2.ER.250405T0750Z.250406T0600Z.250408T0517Z.NO/
1053 AM CDT Thu Apr 3 2025
...FLOOD WARNING IN EFFECT FROM LATE FRIDAY NIGHT TO WEDNESDAY
MORNING...
* WHAT...Moderate flooding is forecast.
* WHERE...Meramec River near Steelville.
* WHEN...From late Friday night to Wednesday morning.
* IMPACTS...At 23.0 feet, Water begins flooding the cottages at The
Rafting Company campgrounds near this height.
* ADDITIONAL DETAILS...
- At 10:15 AM CDT Thursday the stage was 5.2 feet.
- Forecast...The river will rise to 5.9 feet this afternoon. It
will then fall to 3.0 feet tomorrow morning. It will rise
above flood stage early Saturday morning to 22.6 feet early
Sunday morning. It will then fall below flood stage early
Tuesday morning.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Meramec River
Steelville 12.0 5.2 3.0 15.6 22.0 16.7 10.2
&&
LAT...LON 3796 9153 3800 9154 3803 9141 3802 9138
3807 9126 3801 9122 3800 9130 3796 9135
$$
MOC099-189-050400-
/O.NEW.KLSX.FL.W.0007.250405T1421Z-000000T0000Z/
/ERKM7.3.ER.250405T1421Z.250408T1800Z.000000T0000Z.NO/
1053 AM CDT Thu Apr 3 2025
...FLOOD WARNING IN EFFECT FROM SATURDAY MORNING UNTIL FURTHER
NOTICE...
* WHAT...Major flooding is forecast.
* WHERE...Meramec River near Eureka.
* WHEN...From Saturday morning until further notice.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Thursday the stage was 5.5 feet.
- Forecast...The river is expected to rise above flood stage
late Saturday morning and continue rising to a crest of 37.8
feet early Tuesday afternoon.
- Flood stage is 19.0 feet.
- Flood History...This crest compares to a previous crest of
36.7 feet on 09/26/1993.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Meramec River
Eureka 19.0 5.5 6.5 17.9 24.7 32.5 37.7
&&
LAT...LON 3844 9064 3850 9066 3855 9064 3855 9056
3850 9056
$$
MOC071-099-050400-
/O.NEW.KLSX.FL.W.0008.250405T1701Z-000000T0000Z/
/PCFM7.2.ER.250405T1701Z.250408T1200Z.000000T0000Z.NO/
1053 AM CDT Thu Apr 3 2025
...FLOOD WARNING IN EFFECT FROM SATURDAY AFTERNOON UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is forecast.
* WHERE...Meramec River at Pacific.
* WHEN...From Saturday afternoon until further notice.
* IMPACTS...At 27.0 feet, 20 to 30 residences become subject to
flooding. Major flooding begins.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Thursday the stage was 0.8 feet.
- Forecast...The river is expected to rise above flood stage
early Saturday afternoon and continue rising to a crest of
26.9 feet Tuesday morning.
- Flood stage is 15.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Meramec River
Pacific 15.0 0.8 1.8 11.4 19.3 24.8 26.9
&&
LAT...LON 3839 9082 3839 9091 3849 9081 3850 9066
3844 9064 3843 9077
$$
MOC099-189-050400-
/O.NEW.KLSX.FL.W.0009.250405T2215Z-000000T0000Z/
/VLLM7.3.ER.250405T2215Z.250409T0000Z.000000T0000Z.NO/
1053 AM CDT Thu Apr 3 2025
...FLOOD WARNING IN EFFECT FROM SATURDAY AFTERNOON UNTIL FURTHER
NOTICE...
* WHAT...Major flooding is forecast.
* WHERE...Meramec River at Valley Park.
* WHEN...From Saturday afternoon until further notice.
* IMPACTS...At 33.0 feet, Old Highway 141 is closed at Gravois Road
and at Gravois Bluffs Blvd. This impact level may vary depending
on the crest difference of the Mississippi River at St. Louis from
30.8 ft, the March 2008 crest.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Thursday the stage was 1.5 feet.
- Forecast...The river is expected to rise above flood stage
Saturday afternoon and continue rising to a crest of 33.5
feet Tuesday evening.
- Flood stage is 18.0 feet.
- Flood History...This crest compares to a previous crest of
33.0 feet on 05/03/1983.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Meramec River
Valley Park 18.0 1.5 2.6 13.6 20.9 26.5 32.7
&&
LAT...LON 3850 9056 3855 9056 3857 9047 3856 9043
3853 9042 3853 9051
$$
MOC071-050400-
/O.NEW.KLSX.FL.W.0010.250405T2347Z-250410T0600Z/
/UNNM7.2.ER.250405T2347Z.250407T1800Z.250409T0021Z.NO/
1053 AM CDT Thu Apr 3 2025
...FLOOD WARNING IN EFFECT FROM SATURDAY EVENING TO LATE WEDNESDAY
NIGHT...
* WHAT...Moderate flooding is forecast.
* WHERE...Bourbeuse River at Union.
* WHEN...From Saturday evening to late Wednesday night.
* IMPACTS...At 24.2 feet, Water enters the upper floor at Crystal
Ice and Fuel. Also, North Bend Loop Road south of Union begins
flooding near this height.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Thursday the stage was 5.1 feet.
- Forecast...The river is expected to rise to a crest of 24.3
feet early Monday afternoon. It will then fall below flood
stage Tuesday evening.
- Flood stage is 15.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Bourbeuse River
Union 15.0 5.1 5.4 11.2 19.7 24.1 21.2
&&
LAT...LON 3826 9123 3832 9133 3838 9137 3848 9094
3842 9087
$$
MOC099-189-050400-
/O.NEW.KLSX.FL.W.0011.250406T0419Z-000000T0000Z/
/ARNM7.2.ER.250406T0419Z.250409T1200Z.000000T0000Z.NO/
1053 AM CDT Thu Apr 3 2025
...FLOOD WARNING IN EFFECT FROM SATURDAY EVENING UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is forecast.
* WHERE...Meramec River near Arnold.
* WHEN...From Saturday evening until further notice.
* IMPACTS...At 37.4 feet, Homes on Countryside Circle, Eljon Drive,
Babbs Lane, and Lavernal Lane begin flooding.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Thursday the stage was 8.3 feet.
- Forecast...The river is expected to rise above flood stage
late Saturday evening and continue rising to 37.0 feet
Wednesday morning. Additional rises are possible thereafter.
- Flood stage is 24.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Meramec River
Arnold 24.0 8.3 9.0 16.5 26.3 30.7 35.2
&&
LAT...LON 3847 9044 3847 9032 3840 9033 3837 9036
3841 9036 3842 9037 3843 9036 3845 9036
3845 9041
$$
MOC099-189-050400-
/O.NEW.KLSX.FL.W.0012.250406T1800Z-000000T0000Z/
/FNNM7.2.ER.250406T1800Z.250409T0600Z.000000T0000Z.NO/
1053 AM CDT Thu Apr 3 2025
...FLOOD WARNING IN EFFECT FROM SUNDAY AFTERNOON UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is forecast.
* WHERE...Meramec River at Fenton.
* WHEN...From Sunday afternoon until further notice.
* IMPACTS...At 32.0 feet, Brannan's Marine and Motorsports begin
flooding at this height.
* ADDITIONAL DETAILS...
- At 10:15 AM CDT Thursday the stage was 4.5 feet.
- Forecast...The river is expected to rise above flood stage
early Sunday afternoon and continue rising to a crest of 31.9
feet early Wednesday morning.
- Flood stage is 23.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Fri Sat Sun Mon Tue
Meramec River
Fenton 23.0 4.5 6.1 12.7 22.4 25.4 30.1
&&
LAT...LON 3853 9045 3853 9041 3851 9040 3847 9040
3847 9044 3848 9044 3849 9042 3851 9045
$$
Tilly9 follow-up statements
315
WGUS83 KLSX 041617
FLSLSX
Flood Statement
National Weather Service St Louis MO
1117 AM CDT Fri Apr 4 2025
...The Flood Warning is extended for the following river in
Missouri...
Meramec River near Sullivan.
Meramec River at Valley Park.
Meramec River near Eureka.
Meramec River near Arnold.
Meramec River at Fenton.
...The Flood Warning continues for the following rivers in
Missouri...
Big River at Byrnesville.
Meramec River near Steelville.
Meramec River at Pacific.
Bourbeuse River at Union.
River forecasts are based on observed precipitation and forecast
precipitation for the next 72 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
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
&&
MOC055-221-060430-
/O.EXT.KLSX.FL.W.0004.250405T0501Z-250410T0925Z/
/SLLM7.2.ER.250405T0501Z.250406T1200Z.250409T0325Z.NO/
1117 AM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM LATE TONIGHT TO LATE WEDNESDAY
NIGHT...
* WHAT...Moderate flooding is forecast.
* WHERE...Meramec River near Sullivan.
* WHEN...From late tonight to late Wednesday night.
* IMPACTS...At 25.0 feet, Sappington Bridge boat access parking area
and restroom begins flooding near this height.
* ADDITIONAL DETAILS...
- At 10:29 AM CDT Friday the stage was 6.3 feet.
- Forecast...The river is expected to rise above flood stage
late tonight to a crest of 25.9 feet Sunday morning.
- Flood stage is 11.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Meramec River
Sullivan 11.0 6.3 16.2 25.9 22.0 13.7 10.0
&&
LAT...LON 3801 9122 3807 9126 3816 9116 3828 9110
3832 9097 3839 9091 3839 9082 3825 9092
3823 9105 3808 9111
$$
MOC099-060430-
/O.EXT.KLSX.FL.W.0005.250405T0819Z-250410T0000Z/
/BYRM7.2.ER.250405T0819Z.250407T0600Z.250409T0000Z.UU/
1117 AM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM LATE TONIGHT TO WEDNESDAY
EVENING...
* WHAT...Moderate flooding is forecast.
* WHERE...Big River at Byrnesville.
* WHEN...From late tonight to Wednesday evening.
* IMPACTS...At 26.0 feet, Based on NWC stage-based categorical flood
inundation mapping, at this height water will begin flooding the
outfields of the 2 easternmost ball fields at the Northwest
Jefferson County Sports Complex.
* ADDITIONAL DETAILS...
- At 10:45 AM CDT Friday the stage was 5.8 feet.
- Forecast...The river is expected to rise above flood stage
late tonight to a crest of 25.2 feet Monday morning.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Big River
Byrnesville 16.0 5.8 17.9 21.8 25.0 19.8 11.9
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$
MOC055-060430-
/O.EXT.KLSX.FL.W.0006.250405T0903Z-250409T0515Z/
/SEEM7.2.ER.250405T0903Z.250406T0600Z.250407T2315Z.NO/
1117 AM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM LATE TONIGHT TO LATE TUESDAY
NIGHT...
* WHAT...Moderate flooding is forecast.
* WHERE...Meramec River near Steelville.
* WHEN...From late tonight to late Tuesday night.
* IMPACTS...At 20.0 feet, A levee along the left bank upsstream of
the Highway 19 bridge is overtopped near this height, flooding the
campgrounds at Lucky Clover Resort.
* ADDITIONAL DETAILS...
- At 10:15 AM CDT Friday the stage was 4.3 feet.
- Forecast...The river is expected to rise above flood stage
late tonight to a crest of 20.0 feet Sunday morning.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Meramec River
Steelville 12.0 4.3 14.3 19.3 14.7 9.0 5.9
&&
LAT...LON 3796 9153 3800 9154 3803 9141 3802 9138
3807 9126 3801 9122 3800 9130 3796 9135
$$
MOC099-189-060430-
/O.EXT.KLSX.FL.W.0009.250405T2143Z-000000T0000Z/
/VLLM7.3.ER.250405T2143Z.250409T0000Z.000000T0000Z.NO/
1117 AM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM SATURDAY AFTERNOON UNTIL FURTHER
NOTICE...
* WHAT...Major flooding is forecast.
* WHERE...Meramec River at Valley Park.
* WHEN...From Saturday afternoon until further notice.
* IMPACTS...At 30.0 feet, Allen Road at Old Highway 141 is closed.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Friday the stage was 2.4 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow afternoon and crest near 31.0 feet Tuesday evening.
- Flood stage is 18.0 feet.
- Flood History...This crest compares to a previous crest of
30.7 feet on 10/30/1919.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Meramec River
Valley Park 18.0 2.4 12.0 22.2 25.7 30.2 30.2
&&
LAT...LON 3850 9056 3855 9056 3857 9047 3856 9043
3853 9042 3853 9051
$$
MOC099-189-060430-
/O.EXT.KLSX.FL.W.0007.250405T2230Z-000000T0000Z/
/ERKM7.3.ER.250405T2230Z.250408T1200Z.000000T0000Z.NO/
1117 AM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM SATURDAY AFTERNOON UNTIL FURTHER
NOTICE...
* WHAT...Major flooding is forecast.
* WHERE...Meramec River near Eureka.
* WHEN...From Saturday afternoon until further notice.
* IMPACTS...At 34.0 feet, Numerous homes on West Spring River Ranch
Road begin flooding at or slightly above this level.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Friday the stage was 6.1 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow afternoon and crest near 34.0 feet Tuesday morning.
- Flood stage is 19.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Meramec River
Eureka 19.0 6.1 15.2 21.9 28.4 34.0 30.4
&&
LAT...LON 3844 9064 3850 9066 3855 9064 3855 9056
3850 9056
$$
MOC071-099-060430-
/O.EXT.KLSX.FL.W.0008.250406T0448Z-250411T0954Z/
/PCFM7.2.ER.250406T0448Z.250408T1200Z.250410T0354Z.NO/
1117 AM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM SATURDAY EVENING TO LATE
THURSDAY NIGHT...
* WHAT...Moderate flooding is forecast.
* WHERE...Meramec River at Pacific.
* WHEN...From Saturday evening to late Thursday night.
* IMPACTS...At 25.0 feet, East Congress between Columbus and Olive
are flooded in City of Pacific.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Friday the stage was 2.8 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow evening to a crest of 24.8 feet Tuesday morning.
- Flood stage is 15.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Meramec River
Pacific 15.0 2.8 8.9 16.6 22.2 24.8 20.4
&&
LAT...LON 3839 9082 3839 9091 3849 9081 3850 9066
3844 9064 3843 9077
$$
MOC071-060430-
/O.EXT.KLSX.FL.W.0010.250406T0637Z-250409T2146Z/
/UNNM7.1.ER.250406T0637Z.250407T1800Z.250408T1546Z.NO/
1117 AM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM LATE SATURDAY NIGHT TO WEDNESDAY
AFTERNOON...
* WHAT...Minor flooding is forecast.
* WHERE...Bourbeuse River at Union.
* WHEN...From late Saturday night to Wednesday afternoon.
* IMPACTS...At 19.8 feet, Near this height, Missouri State Route UU
is closed in both directions.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Friday the stage was 5.2 feet.
- Forecast...The river is expected to rise above flood stage
Sunday morning to a crest of 20.4 feet early Monday
afternoon.
- Flood stage is 15.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Bourbeuse River
Union 15.0 5.2 9.1 16.7 20.3 16.7 8.0
&&
LAT...LON 3826 9123 3832 9133 3838 9137 3848 9094
3842 9087
$$
MOC099-189-060430-
/O.EXT.KLSX.FL.W.0011.250406T2308Z-000000T0000Z/
/ARNM7.1.ER.250406T2308Z.250409T0600Z.000000T0000Z.NO/
1117 AM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM SUNDAY EVENING UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is forecast.
* WHERE...Meramec River near Arnold.
* WHEN...From Sunday evening until further notice.
* IMPACTS...At 34.3 feet, Near this height, Old Baumgartner Road
begins flooding near the Mattese Creek bridge.
* ADDITIONAL DETAILS...
- At 10:30 AM CDT Friday the stage was 9.3 feet.
- Forecast...The river is expected to rise above flood stage
Sunday evening and continue rising to a crest of 33.5 feet
Wednesday morning.
- Flood stage is 24.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Meramec River
Arnold 24.0 9.3 12.5 21.1 26.8 31.6 33.5
&&
LAT...LON 3847 9044 3847 9032 3840 9033 3837 9036
3841 9036 3842 9037 3843 9036 3845 9036
3845 9041
$$
MOC099-189-060430-
/O.EXT.KLSX.FL.W.0012.250406T2320Z-000000T0000Z/
/FNNM7.2.ER.250406T2320Z.250409T0600Z.000000T0000Z.NO/
1117 AM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM SUNDAY EVENING UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is forecast.
* WHERE...Meramec River at Fenton.
* WHEN...From Sunday evening until further notice.
* IMPACTS...At 30.5 feet, Gravois Road begins flooding in Fenton
southwest of the new bridge.
* ADDITIONAL DETAILS...
- At 10:15 AM CDT Friday the stage was 5.7 feet.
- Forecast...The river is expected to rise above flood stage
Sunday evening and continue rising to a crest of 30.5 feet
Wednesday morning.
- Flood stage is 23.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sat Sun Mon Tue Wed
Meramec River
Fenton 23.0 5.7 11.0 21.3 24.9 29.0 30.2
&&
LAT...LON 3853 9045 3853 9041 3851 9040 3847 9040
3847 9044 3848 9044 3849 9042 3851 9045
$$
Gosselin664
WGUS83 KLSX 050153 RRB
FLSLSX
Flood Statement
National Weather Service St Louis MO
853 PM CDT Fri Apr 4 2025
...The Flood Warning continues for the following rivers in
Missouri...
Meramec River near Sullivan.
Big River at Byrnesville.
Meramec River near Steelville.
Meramec River near Eureka.
Meramec River at Pacific.
Bourbeuse River at Union.
Meramec River at Valley Park.
...The Flood Warning is extended for the following rivers in
Missouri...
Meramec River at Fenton.
Meramec River near Arnold.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
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
&&
MOC055-221-061400-
/O.EXT.KLSX.FL.W.0004.250405T0242Z-250410T0234Z/
/SLLM7.2.ER.250405T0242Z.250406T1200Z.250408T2034Z.NO/
853 PM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY EVENING...
* WHAT...Moderate flooding is forecast.
* WHERE...Meramec River near Sullivan.
* WHEN...Until Wednesday evening.
* IMPACTS...At 25.0 feet, Sappington Bridge boat access parking area
and restroom begins flooding near this height.
* ADDITIONAL DETAILS...
- At 8:29 PM CDT Friday the stage was 10.6 feet.
- Forecast...The river is expected to rise above flood stage
late this evening to a crest of 24.7 feet Sunday morning. It
will then fall below flood stage Tuesday afternoon.
- Flood stage is 11.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Meramec River
Sullivan 11.0 10.6 24.7 19.6 12.8 9.5 8.2
&&
LAT...LON 3801 9122 3807 9126 3816 9116 3828 9110
3832 9097 3839 9091 3839 9082 3825 9092
3823 9105 3808 9111
$$
MOC099-061400-
/O.EXT.KLSX.FL.W.0005.250405T0645Z-250409T1849Z/
/BYRM7.2.ER.250405T0645Z.250407T0000Z.250408T1849Z.UU/
853 PM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM LATE TONIGHT TO WEDNESDAY
AFTERNOON...
* WHAT...Moderate flooding is forecast.
* WHERE...Big River at Byrnesville.
* WHEN...From late tonight to Wednesday afternoon.
* IMPACTS...At 22.4 feet, At this level, Twin Rivers Bridge Road
must be closed.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Friday the stage was 13.1 feet.
- Forecast...The river is expected to rise above flood stage
just after midnight tonight to a crest of 24.0 feet Sunday
evening. It will then fall below flood stage early Tuesday
afternoon.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Big River
Byrnesville 16.0 13.1 22.1 23.3 18.1 11.2 8.1
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$
MOC055-061400-
/O.EXT.KLSX.FL.W.0006.250405T1022Z-250408T2312Z/
/SEEM7.2.ER.250405T1022Z.250406T0600Z.250407T1712Z.NO/
853 PM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM LATE TONIGHT TO TUESDAY
EVENING...
* WHAT...Moderate flooding is forecast.
* WHERE...Meramec River near Steelville.
* WHEN...From late tonight to Tuesday evening.
* IMPACTS...At 20.0 feet, A levee along the left bank upstream of
the Highway 19 bridge is overtopped near this height, flooding the
campgrounds at Lucky Clover Resort.
* ADDITIONAL DETAILS...
- At 8:15 PM CDT Friday the stage was 5.2 feet.
- Forecast...The river is expected to rise above flood stage
late tonight to a crest of 20.1 feet early Sunday morning. It
will then fall below flood stage early Monday afternoon.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Meramec River
Steelville 12.0 5.2 18.9 13.3 7.7 5.5 4.7
&&
LAT...LON 3796 9153 3800 9154 3803 9141 3802 9138
3807 9126 3801 9122 3800 9130 3796 9135
$$
MOC099-189-061400-
/O.EXT.KLSX.FL.W.0007.250405T2040Z-250411T1302Z/
/ERKM7.3.ER.250405T2040Z.250408T1200Z.250410T0702Z.NO/
853 PM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM SATURDAY AFTERNOON TO FRIDAY
MORNING...
* WHAT...Major flooding is forecast.
* WHERE...Meramec River near Eureka.
* WHEN...From Saturday afternoon to Friday morning.
* IMPACTS...At 32.9 feet, Near this height, the parking lot,
restrooms, and smaller pavilion along Williams Road at Kircher
Park in Eureka begin flooding.
* ADDITIONAL DETAILS...
- At 8:30 PM CDT Friday the stage was 10.4 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow afternoon to a crest of 33.2 feet Tuesday morning.
It will then fall below flood stage early Thursday morning.
- Flood stage is 19.0 feet.
- Flood History...This crest compares to a previous crest of
33.0 feet on 01/06/1950.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Meramec River
Eureka 19.0 10.4 21.8 27.8 33.2 28.9 16.6
&&
LAT...LON 3844 9064 3850 9066 3855 9064 3855 9056
3850 9056
$$
MOC071-099-061400-
/O.EXT.KLSX.FL.W.0008.250406T0000Z-250411T0242Z/
/PCFM7.2.ER.250406T0000Z.250408T0600Z.250409T2042Z.NO/
853 PM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM SATURDAY EVENING TO THURSDAY
EVENING...
* WHAT...Moderate flooding is forecast.
* WHERE...Meramec River at Pacific.
* WHEN...From Saturday evening to Thursday evening.
* IMPACTS...At 23.5 feet, Water begins flooding the grounds at the
St. Louis Skeet and Trap Club east of Pacific.
* ADDITIONAL DETAILS...
- At 8:30 PM CDT Friday the stage was 6.9 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow evening to a crest of 23.3 feet early Tuesday
morning. It will then fall below flood stage Wednesday
afternoon.
- Flood stage is 15.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Meramec River
Pacific 15.0 6.9 17.0 21.6 23.2 18.0 10.4
&&
LAT...LON 3839 9082 3839 9091 3849 9081 3850 9066
3844 9064 3843 9077
$$
MOC071-061400-
/O.EXT.KLSX.FL.W.0010.250406T0130Z-250409T1951Z/
/UNNM7.1.ER.250406T0130Z.250407T1200Z.250408T1351Z.NO/
853 PM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM SATURDAY EVENING TO WEDNESDAY
AFTERNOON...
* WHAT...Minor flooding is forecast.
* WHERE...Bourbeuse River at Union.
* WHEN...From Saturday evening to Wednesday afternoon.
* IMPACTS...At 21.9 feet, Water begins covering Old County Farm Road.
* ADDITIONAL DETAILS...
- At 8:30 PM CDT Friday the stage was 10.4 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow evening to a crest of 21.5 feet Monday morning. It
will then fall below flood stage Tuesday morning.
- Flood stage is 15.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Bourbeuse River
Union 15.0 10.4 18.3 21.5 15.9 7.5 5.6
&&
LAT...LON 3826 9123 3832 9133 3838 9137 3848 9094
3842 9087
$$
MOC099-189-061400-
/O.EXT.KLSX.FL.W.0009.250406T0720Z-250411T2310Z/
/VLLM7.3.ER.250406T0720Z.250408T1800Z.250410T1710Z.NO/
853 PM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM LATE SATURDAY NIGHT TO FRIDAY
EVENING...
* WHAT...Major flooding is forecast.
* WHERE...Meramec River at Valley Park.
* WHEN...From late Saturday night to Friday evening.
* IMPACTS...At 29.0 feet, The intersection of 141 and North Highway
drive at I-44 is closed above this level. In Fenton, the
following roads are closed at this level: all of Yarnell Road,
Riverside Drive at Wolfner Drive, Fabricator Drive at Headland
Drive, Soccer Park Road at the truck stop, Rudder Road at Fabick
Drive, and Larkin Williams Road at Ferry Street.
* ADDITIONAL DETAILS...
- At 8:30 PM CDT Friday the stage was 7.2 feet.
- Forecast...The river is expected to rise above flood stage
early Sunday morning to a crest of 29.0 feet early Tuesday
afternoon. It will then fall below flood stage early Thursday
afternoon.
- Flood stage is 18.0 feet.
- Flood History...This crest compares to a previous crest of
29.3 feet on 05/21/1995.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Meramec River
Valley Park 18.0 7.2 18.7 23.5 28.6 28.2 19.9
&&
LAT...LON 3850 9056 3855 9056 3857 9047 3856 9043
3853 9042 3853 9051
$$
MOC099-189-061400-
/O.EXT.KLSX.FL.W.0012.250406T1124Z-000000T0000Z/
/FNNM7.2.ER.250406T1124Z.250409T0600Z.000000T0000Z.NO/
853 PM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM SUNDAY MORNING UNTIL FURTHER
NOTICE...
* WHAT...Moderate flooding is forecast.
* WHERE...Meramec River at Fenton.
* WHEN...From Sunday morning until further notice.
* IMPACTS...At 30.5 feet, Gravois Road begins flooding in Fenton
southwest of the new bridge.
* ADDITIONAL DETAILS...
- At 8:15 PM CDT Friday the stage was 8.8 feet.
- Forecast...The river is expected to rise above flood stage
Sunday morning and continue rising to a crest of 30.5 feet
early Wednesday morning.
- Flood stage is 23.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Meramec River
Fenton 23.0 8.8 23.1 25.7 29.1 30.0 26.5
&&
LAT...LON 3853 9045 3853 9041 3851 9040 3847 9040
3847 9044 3848 9044 3849 9042 3851 9045
$$
MOC099-189-061400-
/O.EXT.KLSX.FL.W.0011.250407T0300Z-000000T0000Z/
/ARNM7.1.ER.250407T0300Z.250409T0600Z.000000T0000Z.NO/
853 PM CDT Fri Apr 4 2025
...FLOOD WARNING NOW IN EFFECT FROM SUNDAY EVENING UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is forecast.
* WHERE...Meramec River near Arnold.
* WHEN...From Sunday evening until further notice.
* IMPACTS...At 34.3 feet, Near this height, Old Baumgartner Road
begins flooding near the Mattese Creek bridge.
* ADDITIONAL DETAILS...
- At 8:30 PM CDT Friday the stage was 11.8 feet.
- Forecast...The river is expected to rise above flood stage
late Sunday evening and continue rising to a crest of 33.3
feet early Wednesday morning.
- Flood stage is 24.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Meramec River
Arnold 24.0 11.8 20.6 26.6 31.1 33.2 30.8
&&
LAT...LON 3847 9044 3847 9032 3840 9033 3837 9036
3841 9036 3842 9037 3843 9036 3845 9036
3845 9041
$$
Britt648
WGUS83 KLSX 050947
FLSLSX
Flood Statement
National Weather Service St Louis MO
447 AM CDT Sat Apr 5 2025
...The Flood Warning continues for the following rivers in
Missouri...
Meramec River near Steelville.
Meramec River at Fenton.
Big River at Byrnesville.
Meramec River near Sullivan.
Meramec River near Eureka.
Meramec River at Pacific.
Meramec River at Valley Park.
...The Flood Warning is extended for the following rivers in
Missouri...
Bourbeuse River at Union.
Meramec River near Arnold.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
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
&&
MOC055-062200-
/O.EXT.KLSX.FL.W.0006.250405T1706Z-250408T1400Z/
/SEEM7.1.ER.250405T1706Z.250406T1200Z.250407T0800Z.NO/
447 AM CDT Sat Apr 5 2025
...FLOOD WARNING NOW IN EFFECT FROM THIS AFTERNOON TO TUESDAY
MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Meramec River near Steelville.
* WHEN...From this afternoon to Tuesday morning.
* IMPACTS...At 14.0 feet, Near this height, roads to the Lucky
Clover campgrounds begin to flood.
* ADDITIONAL DETAILS...
- At 4:15 AM CDT Saturday the stage was 9.9 feet.
- Forecast...The river is expected to rise above flood stage
this afternoon to a crest of 14.6 feet tomorrow morning. It
will then fall below flood stage early Monday morning.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Meramec River
Steelville 12.0 9.9 14.6 11.4 7.4 5.4 4.7
&&
LAT...LON 3796 9153 3800 9154 3803 9141 3802 9138
3807 9126 3801 9122 3800 9130 3796 9135
$$
MOC071-062200-
/O.EXT.KLSX.FL.W.0010.250406T0517Z-250409T2034Z/
/UNNM7.1.ER.250406T0517Z.250407T1800Z.250408T1434Z.NO/
447 AM CDT Sat Apr 5 2025
...FLOOD WARNING NOW IN EFFECT FROM LATE TONIGHT TO WEDNESDAY
AFTERNOON...
* WHAT...Minor flooding is forecast.
* WHERE...Bourbeuse River at Union.
* WHEN...From late tonight to Wednesday afternoon.
* IMPACTS...At 21.0 feet, Near this height, water begins covering
Highway O between Highway AM and American Inn Road.
* ADDITIONAL DETAILS...
- At 4:30 AM CDT Saturday the stage was 12.3 feet.
- Forecast...The river is expected to rise above flood stage
just after midnight tonight to a crest of 21.3 feet early
Monday afternoon. It will then fall below flood stage late
Tuesday morning.
- Flood stage is 15.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Bourbeuse River
Union 15.0 12.3 17.5 21.2 16.2 8.0 5.7
&&
LAT...LON 3826 9123 3832 9133 3838 9137 3848 9094
3842 9087
$$
MOC099-189-062200-
/O.EXT.KLSX.FL.W.0012.250406T1124Z-250412T0945Z/
/FNNM7.2.ER.250406T1124Z.250409T0600Z.250411T0345Z.NO/
447 AM CDT Sat Apr 5 2025
...FLOOD WARNING NOW IN EFFECT FROM SUNDAY MORNING TO LATE FRIDAY
NIGHT...
* WHAT...Moderate flooding is forecast.
* WHERE...Meramec River at Fenton.
* WHEN...From Sunday morning to late Friday night.
* IMPACTS...At 30.5 feet, Gravois Road begins flooding in Fenton
southwest of the new bridge.
* ADDITIONAL DETAILS...
- At 4:15 AM CDT Saturday the stage was 14.2 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow morning to a crest of 30.5 feet early Wednesday
morning. It will then fall below flood stage late Thursday
evening.
- Flood stage is 23.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Meramec River
Fenton 23.0 14.2 23.1 25.7 29.1 30.0 26.5
&&
LAT...LON 3853 9045 3853 9041 3851 9040 3847 9040
3847 9044 3848 9044 3849 9042 3851 9045
$$
MOC099-189-062200-
/O.EXT.KLSX.FL.W.0011.250407T0100Z-000000T0000Z/
/ARNM7.1.ER.250407T0100Z.250409T0600Z.000000T0000Z.NO/
447 AM CDT Sat Apr 5 2025
...FLOOD WARNING NOW IN EFFECT FROM SUNDAY EVENING UNTIL FURTHER
NOTICE...
* WHAT...Minor flooding is forecast.
* WHERE...Meramec River near Arnold.
* WHEN...From Sunday evening until further notice.
* IMPACTS...At 34.3 feet, Near this height, Old Baumgartner Road
begins flooding near the Mattese Creek bridge.
* ADDITIONAL DETAILS...
- At 4:30 AM CDT Saturday the stage was 15.6 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow evening and continue rising to a crest of 33.3 feet
early Wednesday morning.
- Flood stage is 24.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Meramec River
Arnold 24.0 15.6 21.5 26.4 31.1 33.2 30.8
&&
LAT...LON 3847 9044 3847 9032 3840 9033 3837 9036
3841 9036 3842 9037 3843 9036 3845 9036
3845 9041
$$
MOC099-062200-
/O.CON.KLSX.FL.W.0005.000000T0000Z-250409T1849Z/
/BYRM7.2.ER.250405T0323Z.250407T0000Z.250408T1849Z.UU/
447 AM CDT Sat Apr 5 2025
...FLOOD WARNING REMAINS IN EFFECT UNTIL WEDNESDAY AFTERNOON...
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...Big River at Byrnesville.
* WHEN...Until Wednesday afternoon.
* IMPACTS...At 22.4 feet, At this level, Twin Rivers Bridge Road
must be closed.
* ADDITIONAL DETAILS...
- At 4:15 AM CDT Saturday the stage was 17.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 4:15 AM CDT Saturday was 17.8 feet.
- Forecast...The river is expected to rise to a crest of 24.0
feet tomorrow evening. It will then fall below flood stage
early Tuesday afternoon.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Big River
Byrnesville 16.0 17.8 22.1 23.3 18.1 11.2 8.1
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$
MOC055-221-062200-
/O.CON.KLSX.FL.W.0004.000000T0000Z-250410T0234Z/
/SLLM7.2.ER.250405T0219Z.250406T1200Z.250408T2034Z.NO/
447 AM CDT Sat Apr 5 2025
...FLOOD WARNING REMAINS IN EFFECT UNTIL WEDNESDAY EVENING...
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...Meramec River near Sullivan.
* WHEN...Until Wednesday evening.
* IMPACTS...At 25.0 feet, Sappington Bridge boat access parking area
and restroom begins flooding near this height.
* ADDITIONAL DETAILS...
- At 4:29 AM CDT Saturday the stage was 14.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 4:29 AM CDT Saturday was 14.2 feet.
- Forecast...The river is expected to rise to a crest of 24.7
feet tomorrow morning. It will then fall below flood stage
Tuesday afternoon.
- Flood stage is 11.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Meramec River
Sullivan 11.0 14.2 24.7 19.6 12.8 9.5 8.2
&&
LAT...LON 3801 9122 3807 9126 3816 9116 3828 9110
3832 9097 3839 9091 3839 9082 3825 9092
3823 9105 3808 9111
$$
MOC099-189-062200-
/O.CON.KLSX.FL.W.0007.250405T2040Z-250411T1302Z/
/ERKM7.3.ER.250405T2040Z.250408T1200Z.250410T0702Z.NO/
447 AM CDT Sat Apr 5 2025
...FLOOD WARNING REMAINS IN EFFECT FROM THIS AFTERNOON TO FRIDAY
MORNING...
* WHAT...Major flooding is forecast.
* WHERE...Meramec River near Eureka.
* WHEN...From this afternoon to Friday morning.
* IMPACTS...At 32.9 feet, Near this height, the parking lot,
restrooms, and smaller pavilion along Williams Road at Kircher
Park in Eureka begin flooding.
* ADDITIONAL DETAILS...
- At 4:30 AM CDT Saturday the stage was 16.5 feet.
- Forecast...The river is expected to rise above flood stage
late this afternoon to a crest of 33.2 feet Tuesday morning.
It will then fall below flood stage early Thursday morning.
- Flood stage is 19.0 feet.
- Flood History...This crest compares to a previous crest of
33.0 feet on 01/06/1950.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Meramec River
Eureka 19.0 16.5 21.8 27.8 33.2 28.9 16.6
&&
LAT...LON 3844 9064 3850 9066 3855 9064 3855 9056
3850 9056
$$
MOC071-099-062200-
/O.CON.KLSX.FL.W.0008.250406T0000Z-250411T0242Z/
/PCFM7.2.ER.250406T0000Z.250408T0600Z.250409T2042Z.NO/
447 AM CDT Sat Apr 5 2025
...FLOOD WARNING REMAINS IN EFFECT FROM THIS EVENING TO THURSDAY
EVENING...
* WHAT...Moderate flooding is forecast.
* WHERE...Meramec River at Pacific.
* WHEN...From this evening to Thursday evening.
* IMPACTS...At 23.5 feet, Water begins flooding the grounds at the
St. Louis Skeet and Trap Club east of Pacific.
* ADDITIONAL DETAILS...
- At 4:30 AM CDT Saturday the stage was 11.6 feet.
- Forecast...The river is expected to rise above flood stage
this evening to a crest of 23.3 feet early Tuesday morning.
It will then fall below flood stage Wednesday afternoon.
- Flood stage is 15.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Meramec River
Pacific 15.0 11.6 17.0 21.6 23.2 18.0 10.4
&&
LAT...LON 3839 9082 3839 9091 3849 9081 3850 9066
3844 9064 3843 9077
$$
MOC099-189-062200-
/O.CON.KLSX.FL.W.0009.250406T0720Z-250411T2310Z/
/VLLM7.3.ER.250406T0720Z.250408T1800Z.250410T1710Z.NO/
447 AM CDT Sat Apr 5 2025
...FLOOD WARNING REMAINS IN EFFECT FROM LATE TONIGHT TO FRIDAY
EVENING...
* WHAT...Major flooding is forecast.
* WHERE...Meramec River at Valley Park.
* WHEN...From late tonight to Friday evening.
* IMPACTS...At 29.0 feet, The intersection of 141 and North Highway
drive at I-44 is closed above this level. In Fenton, the
following roads are closed at this level: all of Yarnell Road,
Riverside Drive at Wolfner Drive, Fabricator Drive at Headland
Drive, Soccer Park Road at the truck stop, Rudder Road at Fabick
Drive, and Larkin Williams Road at Ferry Street.
* ADDITIONAL DETAILS...
- At 4:30 AM CDT Saturday the stage was 12.6 feet.
- Forecast...The river is expected to rise above flood stage
just after midnight tonight to a crest of 29.0 feet early
Tuesday afternoon. It will then fall below flood stage early
Thursday afternoon.
- Flood stage is 18.0 feet.
- Flood History...This crest compares to a previous crest of
29.3 feet on 05/21/1995.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Meramec River
Valley Park 18.0 12.6 18.7 23.5 28.6 28.2 19.9
&&
LAT...LON 3850 9056 3855 9056 3857 9047 3856 9043
3853 9042 3853 9051
$$
Elmore492
WGUS83 KLSX 051450
FLSLSX
Flood Statement
National Weather Service St Louis MO
950 AM CDT Sat Apr 5 2025
...The Flood Warning continues for the following rivers in
Missouri...
Big River at Byrnesville.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
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
&&
MOC099-070300-
/O.EXT.KLSX.FL.W.0005.000000T0000Z-250409T1722Z/
/BYRM7.2.ER.250405T0323Z.250407T0000Z.250408T1722Z.UU/
950 AM CDT Sat Apr 5 2025
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY AFTERNOON...
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...Big River at Byrnesville.
* WHEN...Until Wednesday afternoon.
* IMPACTS...At 26.0 feet, Based on NWC stage-based categorical flood
inundation mapping, at this height water will begin flooding the
outfields of the 2 easternmost ball fields at the Northwest
Jefferson County Sports Complex.
* ADDITIONAL DETAILS...
- At 8:45 AM CDT Saturday the stage was 18.2 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:45 AM CDT Saturday was 18.3 feet.
- Forecast...The river is expected to rise to a crest of 24.3
feet tomorrow evening. It will then fall below flood stage
early Tuesday afternoon.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Sun Mon Tue Wed Thu
Big River
Byrnesville 16.0 18.2 22.8 23.6 17.7 11.6 9.3
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$
Maples895
WGUS83 KLSX 060140
FLSLSX
Flood Statement
National Weather Service St Louis MO
840 PM CDT Sat Apr 5 2025
...The Flood Warning is extended for the following rivers in
Missouri...
Meramec River at Pacific.
Meramec River near Eureka.
Meramec River near Steelville.
Big River at Byrnesville.
Meramec River near Sullivan.
Meramec River at Valley Park.
Meramec River near Arnold.
Meramec River at Fenton.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
Rainfall heavier than forecast could cause river levels to rise even
higher than predicted. The National Weather Service will monitor
this developing situation and issue follow up statements as
conditions change.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
MOC071-099-071345-
/O.EXT.KLSX.FL.W.0008.250406T0140Z-250411T0636Z/
/PCFM7.1.ER.250406T0035Z.250408T0600Z.250410T0036Z.NO/
840 PM CDT Sat Apr 5 2025
...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING TO LATE THURSDAY
NIGHT...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Meramec River at Pacific.
* WHEN...From this evening to late Thursday night.
* IMPACTS...At 22.6 feet, Four houses near the gage begin to flood
at this stage.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Saturday the stage was 15.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:00 PM CDT Saturday was 15.4 feet.
- Forecast...The river is expected to rise to a crest of 22.9
feet early Tuesday morning. It will then fall below flood
stage Wednesday evening.
- Flood stage is 15.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Meramec River
Pacific 15.0 15.4 21.4 22.8 18.7 11.5 6.4
&&
LAT...LON 3839 9082 3839 9091 3849 9081 3850 9066
3844 9064 3843 9077
$$
MOC099-189-071345-
/O.EXT.KLSX.FL.W.0007.000000T0000Z-250411T1722Z/
/ERKM7.3.ER.250405T1858Z.250408T1800Z.250410T1122Z.NO/
840 PM CDT Sat Apr 5 2025
...FLOOD WARNING NOW IN EFFECT UNTIL FRIDAY AFTERNOON...
* WHAT...Minor flooding is occurring and major flooding is forecast.
* WHERE...Meramec River near Eureka.
* WHEN...Until Friday afternoon.
* IMPACTS...At 29.7 feet, Near this height, the large pavilion floor
and gazebo along Williams Road at Kircher Park in Eureka begin
flooding.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Saturday the stage was 20.6 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:00 PM CDT Saturday was 20.6 feet.
- Forecast...The river is expected to rise to a crest of 32.4
feet early Tuesday afternoon. It will then fall below flood
stage Thursday morning.
- Flood stage is 19.0 feet.
- Flood History...This crest compares to a previous crest of
31.8 feet on 12/30/1942.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Meramec River
Eureka 19.0 20.6 28.1 32.3 28.7 18.7 10.1
&&
LAT...LON 3844 9064 3850 9066 3855 9064 3855 9056
3850 9056
$$
MOC055-071345-
/O.EXT.KLSX.FL.W.0006.000000T0000Z-250409T0234Z/
/SEEM7.1.ER.250405T1548Z.250406T1200Z.250407T2034Z.NO/
840 PM CDT Sat Apr 5 2025
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Meramec River near Steelville.
* WHEN...Until Tuesday evening.
* IMPACTS...At 16.9 feet, Near this height, Missouri State Route O
will be closed in both directions.
* ADDITIONAL DETAILS...
- At 8:15 PM CDT Saturday the stage was 15.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:15 PM CDT Saturday was 15.9 feet.
- Forecast...The river is expected to rise to a crest of 17.1
feet tomorrow morning. It will then fall below flood stage
Monday afternoon.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Meramec River
Steelville 12.0 15.9 14.0 8.7 5.8 4.8 4.3
&&
LAT...LON 3796 9153 3800 9154 3803 9141 3802 9138
3807 9126 3801 9122 3800 9130 3796 9135
$$
MOC099-071345-
/O.EXT.KLSX.FL.W.0005.000000T0000Z-250410T0045Z/
/BYRM7.2.ER.250405T0323Z.250407T0600Z.250409T0045Z.UU/
840 PM CDT Sat Apr 5 2025
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY EVENING...
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...Big River at Byrnesville.
* WHEN...Until Wednesday evening.
* IMPACTS...At 22.4 feet, At this level, Twin Rivers Bridge Road
must be closed.
* ADDITIONAL DETAILS...
- At 8:15 PM CDT Saturday the stage was 19.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:15 PM CDT Saturday was 19.7 feet.
- Forecast...The river is expected to rise to a crest of 23.6
feet early Monday morning. It will then fall below flood
stage Tuesday evening.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Big River
Byrnesville 16.0 19.7 23.6 19.9 11.8 8.3 7.6
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$
MOC055-221-071345-
/O.EXT.KLSX.FL.W.0004.000000T0000Z-250410T0600Z/
/SLLM7.2.ER.250405T0219Z.250406T1200Z.250409T0000Z.NO/
840 PM CDT Sat Apr 5 2025
...FLOOD WARNING NOW IN EFFECT UNTIL LATE WEDNESDAY NIGHT...
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...Meramec River near Sullivan.
* WHEN...Until late Wednesday night.
* IMPACTS...At 21.0 feet, Sappington Bridge Road just north of the
Meramec River bridge begins flooding near this height.
* ADDITIONAL DETAILS...
- At 7:29 PM CDT Saturday the stage was 20.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 7:29 PM CDT Saturday was 20.9 feet.
- Forecast...The river is expected to rise to a crest of 21.9
feet tomorrow morning. It will then fall below flood stage
Tuesday evening.
- Flood stage is 11.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Meramec River
Sullivan 11.0 20.9 19.1 12.7 9.8 8.3 7.5
&&
LAT...LON 3801 9122 3807 9126 3816 9116 3828 9110
3832 9097 3839 9091 3839 9082 3825 9092
3823 9105 3808 9111
$$
MOC099-189-071345-
/O.EXT.KLSX.FL.W.0009.250406T0441Z-250411T2045Z/
/VLLM7.3.ER.250406T0441Z.250408T1800Z.250410T1445Z.NO/
840 PM CDT Sat Apr 5 2025
...FLOOD WARNING NOW IN EFFECT FROM THIS EVENING TO FRIDAY
AFTERNOON...
* WHAT...Major flooding is forecast.
* WHERE...Meramec River at Valley Park.
* WHEN...From this evening to Friday afternoon.
* IMPACTS...At 27.5 feet, The northbound lanes of Highway 141 at
I-44 will be closed near this height.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Saturday the stage was 17.2 feet.
- Forecast...The river is expected to rise above flood stage
late this evening to a crest of 27.8 feet early Tuesday
afternoon. It will then fall below flood stage late Thursday
morning.
- Flood stage is 18.0 feet.
- Flood History...This crest compares to a previous crest of
27.8 feet on 03/14/1935.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Meramec River
Valley Park 18.0 17.2 23.0 27.5 26.4 19.1 9.1
&&
LAT...LON 3850 9056 3855 9056 3857 9047 3856 9043
3853 9042 3853 9051
$$
MOC099-189-071345-
/O.EXT.KLSX.FL.W.0011.250406T1621Z-250411T2224Z/
/ARNM7.1.ER.250406T1621Z.250409T0000Z.250410T1624Z.NO/
840 PM CDT Sat Apr 5 2025
...FLOOD WARNING NOW IN EFFECT FROM SUNDAY MORNING TO FRIDAY
AFTERNOON...
* WHAT...Minor flooding is forecast.
* WHERE...Meramec River near Arnold.
* WHEN...From Sunday morning to Friday afternoon.
* IMPACTS...At 31.0 feet, Near this height, Old Baumgartner Road
near Brookstone Terrace Drive begins flooding.
* ADDITIONAL DETAILS...
- At 8:00 PM CDT Saturday the stage was 20.2 feet.
- Forecast...The river is expected to rise above flood stage
late tomorrow morning to a crest of 31.6 feet Tuesday
evening. It will then fall below flood stage late Thursday
morning.
- Flood stage is 24.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Meramec River
Arnold 24.0 20.2 27.7 30.7 30.4 25.1 17.9
&&
LAT...LON 3847 9044 3847 9032 3840 9033 3837 9036
3841 9036 3842 9037 3843 9036 3845 9036
3845 9041
$$
MOC099-189-071345-
/O.EXT.KLSX.FL.W.0012.250407T0000Z-250411T2100Z/
/FNNM7.1.ER.250407T0000Z.250408T1800Z.250410T1500Z.NO/
840 PM CDT Sat Apr 5 2025
...FLOOD WARNING NOW IN EFFECT FROM SUNDAY EVENING TO FRIDAY
AFTERNOON...
* WHAT...Minor flooding is forecast.
* WHERE...Meramec River at Fenton.
* WHEN...From Sunday evening to Friday afternoon.
* IMPACTS...At 25.4 feet, Water begins backing onto Water Street at
the riverside drain at the Ferry Street intersection.
* ADDITIONAL DETAILS...
- At 8:15 PM CDT Saturday the stage was 19.0 feet.
- Forecast...The river is expected to rise above flood stage
tomorrow evening to a crest of 28.5 feet early Tuesday
afternoon. It will then fall below flood stage late Thursday
morning.
- Flood stage is 23.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Meramec River
Fenton 23.0 19.0 24.3 28.1 27.9 23.7 14.6
&&
LAT...LON 3853 9045 3853 9041 3851 9040 3847 9040
3847 9044 3848 9044 3849 9042 3851 9045
$$
Delia689
WGUS83 KLSX 061544
FLSLSX
Flood Statement
National Weather Service St Louis MO
1044 AM CDT Sun Apr 6 2025
...The Flood Warning continues for the following rivers in
Missouri...
Big River at Byrnesville.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
MOC099-080345-
/O.EXT.KLSX.FL.W.0005.000000T0000Z-250409T2000Z/
/BYRM7.2.ER.250405T0323Z.250407T0600Z.250408T2000Z.UU/
1044 AM CDT Sun Apr 6 2025
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY AFTERNOON...
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...Big River at Byrnesville.
* WHEN...Until Wednesday afternoon.
* IMPACTS...At 22.4 feet, At this level, Twin Rivers Bridge Road
must be closed.
* ADDITIONAL DETAILS...
- At 9:45 AM CDT Sunday the stage was 22.6 feet and rising.
- Forecast...The river is expected to rise to a crest of 23.5
feet just after midnight tonight. It will then fall below
flood stage Tuesday afternoon.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Mon Tue Wed Thu Fri
Big River
Byrnesville 16.0 22.6 23.3 18.9 11.1 8.8 7.6
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$
Kimble671
WGUS83 KLSX 070247
FLSLSX
Flood Statement
National Weather Service St Louis MO
947 PM CDT Sun Apr 6 2025
...The Flood Warning is extended for the following rivers in
Missouri...
Bourbeuse River at Union.
Meramec River near Arnold.
Meramec River at Valley Park.
Meramec River at Pacific.
Meramec River near Eureka.
Meramec River near Steelville.
Big River at Byrnesville.
Meramec River near Sullivan.
Meramec River at Fenton.
River forecasts are based on observed precipitation and forecast
precipitation for the next 24 hours.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
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
&&
MOC071-081500-
/O.EXT.KLSX.FL.W.0010.000000T0000Z-250410T0130Z/
/UNNM7.2.ER.250405T1930Z.250408T0000Z.250408T1930Z.NO/
947 PM CDT Sun Apr 6 2025
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY EVENING...
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...Bourbeuse River at Union.
* WHEN...Until Wednesday evening.
* IMPACTS...At 21.9 feet, Water begins covering Old County Farm Road.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Sunday the stage was 19.3 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Sunday was 19.3 feet.
- Forecast...The river is expected to rise to a crest of 22.0
feet tomorrow evening. It will then fall below flood stage
early Tuesday afternoon.
- Flood stage is 15.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Bourbeuse River
Union 15.0 19.3 19.0 8.0 5.6 4.8 4.4
&&
LAT...LON 3826 9123 3832 9133 3838 9137 3848 9094
3842 9087
$$
MOC099-189-081500-
/O.EXT.KLSX.FL.W.0009.000000T0000Z-250412T1651Z/
/VLLM7.3.ER.250406T0622Z.250409T0000Z.250411T1051Z.NO/
947 PM CDT Sun Apr 6 2025
...FLOOD WARNING NOW IN EFFECT UNTIL SATURDAY MORNING...
* WHAT...Moderate flooding is occurring and major flooding is
forecast.
* WHERE...Meramec River at Valley Park.
* WHEN...Until Saturday morning.
* IMPACTS...At 28.7 feet, The southbound lanes of Highway 141 at
I-44 will be closed near this height.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Sunday the stage was 22.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Sunday was 22.1 feet.
- Forecast...The river is expected to rise to a crest of 28.5
feet Tuesday evening. It will then fall below flood stage
early Friday morning.
- Flood stage is 18.0 feet.
- Flood History...This crest compares to a previous crest of
28.5 feet on 02/26/1985.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Meramec River
Valley Park 18.0 22.1 27.9 27.9 24.2 17.6 10.3
&&
LAT...LON 3850 9056 3855 9056 3857 9047 3856 9043
3853 9042 3853 9051
$$
MOC071-099-081500-
/O.EXT.KLSX.FL.W.0008.000000T0000Z-250411T0454Z/
/PCFM7.2.ER.250406T0035Z.250408T1200Z.250409T2254Z.NO/
947 PM CDT Sun Apr 6 2025
...FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY EVENING...
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...Meramec River at Pacific.
* WHEN...Until Thursday evening.
* IMPACTS...At 23.0 feet, The lift station property at East Congress
and Elm Street begins flooding near this height.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Sunday the stage was 18.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Sunday was 18.9 feet.
- Forecast...The river is expected to rise to a crest of 23.0
feet Tuesday morning. It will then fall below flood stage
Wednesday afternoon.
- Flood stage is 15.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Meramec River
Pacific 15.0 18.9 23.0 18.8 10.7 6.2 4.4
&&
LAT...LON 3839 9082 3839 9091 3849 9081 3850 9066
3844 9064 3843 9077
$$
MOC099-189-081500-
/O.EXT.KLSX.FL.W.0007.000000T0000Z-250412T0028Z/
/ERKM7.3.ER.250405T1858Z.250408T1200Z.250410T1828Z.NO/
947 PM CDT Sun Apr 6 2025
...FLOOD WARNING NOW IN EFFECT UNTIL FRIDAY EVENING...
* WHAT...Moderate flooding is occurring and major flooding is
forecast.
* WHERE...Meramec River near Eureka.
* WHEN...Until Friday evening.
* IMPACTS...At 32.5 feet, At this height, about 12 houses on Willman
Road start flooding the main floors. On the river's north side,
another 8 homes along West Spring River Ranch Road begin flooding.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Sunday the stage was 27.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:00 PM CDT Sunday was 27.1 feet.
- Forecast...The river is expected to rise to a crest of 32.5
feet Tuesday morning. It will then fall below flood stage
early Thursday afternoon.
- Flood stage is 19.0 feet.
- Flood History...This crest compares to a previous crest of
33.0 feet on 01/06/1950.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Meramec River
Eureka 19.0 27.1 32.5 28.7 21.6 11.8 9.0
&&
LAT...LON 3844 9064 3850 9066 3855 9064 3855 9056
3850 9056
$$
MOC055-081500-
/O.EXT.KLSX.FL.W.0006.000000T0000Z-250408T2300Z/
/SEEM7.1.ER.250405T1548Z.250406T1400Z.250407T1700Z.NO/
947 PM CDT Sun Apr 6 2025
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Meramec River near Steelville.
* WHEN...Until Tuesday evening.
* ADDITIONAL DETAILS...
- At 9:15 PM CDT Sunday the stage was 15.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:15 PM CDT Sunday was 18.0 feet.
- Forecast...The river is expected to fall below flood stage
early tomorrow afternoon and continue falling to 3.9 feet
Saturday evening.
- Flood stage is 12.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Meramec River
Steelville 12.0 15.7 8.0 5.6 4.7 4.3 4.0
&&
LAT...LON 3796 9153 3800 9154 3803 9141 3802 9138
3807 9126 3801 9122 3800 9130 3796 9135
$$
MOC099-081500-
/O.EXT.KLSX.FL.W.0005.000000T0000Z-250409T1720Z/
/BYRM7.2.ER.250405T0323Z.250407T0600Z.250408T1720Z.UU/
947 PM CDT Sun Apr 6 2025
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY AFTERNOON...
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...Big River at Byrnesville.
* WHEN...Until Wednesday afternoon.
* IMPACTS...At 22.4 feet, At this level, Twin Rivers Bridge Road
must be closed.
* ADDITIONAL DETAILS...
- At 8:45 PM CDT Sunday the stage was 23.7 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:45 PM CDT Sunday was 23.7 feet.
- Forecast...The river is expected to rise to a crest of 23.8
feet just after midnight tonight. It will then fall below
flood stage early Tuesday afternoon.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Big River
Byrnesville 16.0 23.7 18.4 10.1 8.4 7.5 6.9
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$
MOC055-221-081500-
/O.EXT.KLSX.FL.W.0004.000000T0000Z-250410T0200Z/
/SLLM7.2.ER.250405T0219Z.250406T0829Z.250408T2000Z.NO/
947 PM CDT Sun Apr 6 2025
...FLOOD WARNING NOW IN EFFECT UNTIL WEDNESDAY EVENING...
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...Meramec River near Sullivan.
* WHEN...Until Wednesday evening.
* ADDITIONAL DETAILS...
- At 8:29 PM CDT Sunday the stage was 20.9 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:29 PM CDT Sunday was 21.5 feet.
- Forecast...The river is expected to fall below flood stage
Tuesday afternoon and continue falling to 6.8 feet Saturday
evening.
- Flood stage is 11.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Meramec River
Sullivan 11.0 20.9 12.0 9.6 8.2 7.4 6.9
&&
LAT...LON 3801 9122 3807 9126 3816 9116 3828 9110
3832 9097 3839 9091 3839 9082 3825 9092
3823 9105 3808 9111
$$
MOC099-189-081500-
/O.EXT.KLSX.FL.W.0012.250407T0600Z-250412T0808Z/
/FNNM7.1.ER.250407T0600Z.250409T0000Z.250411T0208Z.NO/
947 PM CDT Sun Apr 6 2025
...FLOOD WARNING NOW IN EFFECT FROM LATE TONIGHT TO LATE FRIDAY
NIGHT...
* WHAT...Minor flooding is forecast.
* WHERE...Meramec River at Fenton.
* WHEN...From late tonight to late Friday night.
* IMPACTS...At 29.5 feet, The Fenton Feed Mill begins flooding near
this height.
* ADDITIONAL DETAILS...
- At 9:15 PM CDT Sunday the stage was 22.3 feet.
- Forecast...The river is expected to rise above flood stage
just after midnight tonight to a crest of 28.5 feet Tuesday
evening. It will then fall below flood stage late Thursday
evening.
- Flood stage is 23.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Meramec River
Fenton 23.0 22.3 27.6 28.0 25.5 20.7 14.5
&&
LAT...LON 3853 9045 3853 9041 3851 9040 3847 9040
3847 9044 3848 9044 3849 9042 3851 9045
$$
MOC099-189-081500-
/O.EXT.KLSX.FL.W.0011.250407T0720Z-250412T1448Z/
/ARNM7.1.ER.250407T0720Z.250409T0600Z.250411T0848Z.NO/
947 PM CDT Sun Apr 6 2025
...FLOOD WARNING NOW IN EFFECT FROM LATE TONIGHT TO SATURDAY
MORNING...
* WHAT...Minor flooding is forecast.
* WHERE...Meramec River near Arnold.
* WHEN...From late tonight to Saturday morning.
* IMPACTS...At 30.0 feet, Wells Road below Suson Woods begins
flooding at this height.
* ADDITIONAL DETAILS...
- At 9:00 PM CDT Sunday the stage was 23.3 feet.
- Forecast...The river is expected to rise above flood stage
just after midnight tonight to a crest of 30.0 feet early
Wednesday morning. It will then fall below flood stage early
Friday morning.
- Flood stage is 24.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Meramec River
Arnold 24.0 23.3 28.9 29.9 27.8 23.2 16.9
&&
LAT...LON 3847 9044 3847 9032 3840 9033 3837 9036
3841 9036 3842 9037 3843 9036 3845 9036
3845 9041
$$
Delia474
WGUS83 KLSX 071314
FLSLSX
Flood Statement
National Weather Service St Louis MO
814 AM CDT Mon Apr 7 2025
...The Flood Warning continues for the following rivers in
Missouri...
Meramec River at Fenton.
Meramec River near Arnold.
Meramec River at Valley Park.
Meramec River near Eureka.
Big River at Byrnesville.
Meramec River near Sullivan.
...The Flood Warning is extended for the following rivers in
Missouri...
Bourbeuse River at Union.
Meramec River at Pacific.
River forecasts are based on observed precipitation.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Motorists should not attempt to drive around barricades or drive
cars through flooded areas.
This product, along with additional weather and stream information,
is available at https://water.noaa.gov/wfo/lsx
&&
MOC099-189-090115-
/O.EXT.KLSX.FL.W.0012.000000T0000Z-250412T0316Z/
/FNNM7.1.ER.250407T0635Z.250409T0000Z.250410T2116Z.NO/
814 AM CDT Mon Apr 7 2025
...FLOOD WARNING NOW IN EFFECT UNTIL FRIDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Meramec River at Fenton.
* WHEN...Until Friday evening.
* IMPACTS...At 29.5 feet, The Fenton Feed Mill begins flooding near
this height.
* ADDITIONAL DETAILS...
- At 7:15 AM CDT Monday the stage was 23.8 feet.
- Forecast...The river is expected to rise to a crest of 27.9
feet tomorrow evening.
- Flood stage is 23.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Meramec River
Fenton 23.0 23.8 27.2 27.3 24.6 19.9 14.5
&&
LAT...LON 3853 9045 3853 9041 3851 9040 3847 9040
3847 9044 3848 9044 3849 9042 3851 9045
$$
MOC071-090115-
/O.EXT.KLSX.FL.W.0010.000000T0000Z-250411T0040Z/
/UNNM7.2.ER.250405T1930Z.250408T0600Z.250409T1840Z.NO/
814 AM CDT Mon Apr 7 2025
...FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY EVENING...
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...Bourbeuse River at Union.
* WHEN...Until Thursday evening.
* IMPACTS...At 21.9 feet, Water begins covering Old County Farm Road.
* ADDITIONAL DETAILS...
- At 7:30 AM CDT Monday the stage was 20.8 feet.
- Forecast...The river is expected to rise to a crest of 22.0
feet late tonight.
- Flood stage is 15.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Bourbeuse River
Union 15.0 20.8 22.0 16.9 9.1 4.8 4.4
&&
LAT...LON 3826 9123 3832 9133 3838 9137 3848 9094
3842 9087
$$
MOC071-099-090115-
/O.EXT.KLSX.FL.W.0008.000000T0000Z-250411T0643Z/
/PCFM7.2.ER.250406T0035Z.250408T1200Z.250410T0043Z.NO/
814 AM CDT Mon Apr 7 2025
...FLOOD WARNING NOW IN EFFECT UNTIL LATE THURSDAY NIGHT...
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...Meramec River at Pacific.
* WHEN...Until late Thursday night.
* IMPACTS...At 23.0 feet, The lift station property at East Congress
and Elm Street begins flooding near this height.
* ADDITIONAL DETAILS...
- At 7:30 AM CDT Monday the stage was 20.8 feet.
- Forecast...The river is expected to rise to a crest of 23.0
feet tomorrow morning.
- Flood stage is 15.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Meramec River
Pacific 15.0 20.8 23.0 19.8 10.6 5.9 4.4
&&
LAT...LON 3839 9082 3839 9091 3849 9081 3850 9066
3844 9064 3843 9077
$$
MOC099-189-090115-
/O.CON.KLSX.FL.W.0011.000000T0000Z-250412T1448Z/
/ARNM7.1.ER.250407T0503Z.250409T0600Z.250411T0848Z.NO/
814 AM CDT Mon Apr 7 2025
...FLOOD WARNING REMAINS IN EFFECT UNTIL SATURDAY MORNING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Meramec River near Arnold.
* WHEN...Until Saturday morning.
* IMPACTS...At 30.0 feet, Wells Road below Suson Woods begins
flooding at this height.
* ADDITIONAL DETAILS...
- At 7:30 AM CDT Monday the stage was 25.5 feet.
- Forecast...The river is expected to rise to a crest of 30.2
feet Wednesday morning.
- Flood stage is 24.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Meramec River
Arnold 24.0 25.5 29.4 29.9 27.8 23.2 16.9
&&
LAT...LON 3847 9044 3847 9032 3840 9033 3837 9036
3841 9036 3842 9037 3843 9036 3845 9036
3845 9041
$$
MOC099-189-090115-
/O.CON.KLSX.FL.W.0009.000000T0000Z-250412T1651Z/
/VLLM7.3.ER.250406T0622Z.250409T0000Z.250411T1051Z.NO/
814 AM CDT Mon Apr 7 2025
...FLOOD WARNING REMAINS IN EFFECT UNTIL SATURDAY MORNING...
* WHAT...Moderate flooding is occurring and major flooding is
forecast.
* WHERE...Meramec River at Valley Park.
* WHEN...Until Saturday morning.
* IMPACTS...At 28.7 feet, The southbound lanes of Highway 141 at
I-44 will be closed near this height.
* ADDITIONAL DETAILS...
- At 7:30 AM CDT Monday the stage was 24.7 feet.
- Forecast...The river is expected to rise to a crest of 28.5
feet tomorrow evening.
- Flood stage is 18.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Meramec River
Valley Park 18.0 24.7 27.7 27.9 24.2 17.6 10.3
&&
LAT...LON 3850 9056 3855 9056 3857 9047 3856 9043
3853 9042 3853 9051
$$
MOC099-189-090115-
/O.CON.KLSX.FL.W.0007.000000T0000Z-250412T0028Z/
/ERKM7.3.ER.250405T1858Z.250408T1200Z.250410T1828Z.NO/
814 AM CDT Mon Apr 7 2025
...FLOOD WARNING REMAINS IN EFFECT UNTIL FRIDAY EVENING...
* WHAT...Moderate flooding is occurring and major flooding is
forecast.
* WHERE...Meramec River near Eureka.
* WHEN...Until Friday evening.
* IMPACTS...At 32.5 feet, At this height, about 12 houses on Willman
Road start flooding the main floors. On the river's north side,
another 8 homes along West Spring River Ranch Road begin flooding.
* ADDITIONAL DETAILS...
- At 7:30 AM CDT Monday the stage was 29.7 feet.
- Forecast...The river is expected to rise to a crest of 32.5
feet tomorrow morning.
- Flood stage is 19.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Meramec River
Eureka 19.0 29.7 32.5 28.7 21.6 11.8 9.0
&&
LAT...LON 3844 9064 3850 9066 3855 9064 3855 9056
3850 9056
$$
MOC099-090115-
/O.CON.KLSX.FL.W.0005.000000T0000Z-250409T1720Z/
/BYRM7.2.ER.250405T0323Z.250407T0745Z.250408T1720Z.UU/
814 AM CDT Mon Apr 7 2025
...FLOOD WARNING REMAINS IN EFFECT UNTIL WEDNESDAY AFTERNOON...
* WHAT...Moderate flooding is occurring and moderate flooding is
forecast.
* WHERE...Big River at Byrnesville.
* WHEN...Until Wednesday afternoon.
* IMPACTS...At 22.4 feet, At this level, Twin Rivers Bridge Road
must be closed.
* ADDITIONAL DETAILS...
- At 7:45 AM CDT Monday the stage was 23.6 feet.
- Forecast...The river is expected to fall below flood stage
tomorrow afternoon.
- Flood stage is 16.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Big River
Byrnesville 16.0 23.6 18.4 10.1 8.4 7.5 6.9
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$
MOC055-221-090115-
/O.CON.KLSX.FL.W.0004.000000T0000Z-250410T0200Z/
/SLLM7.2.ER.250405T0219Z.250406T0829Z.250408T2000Z.NO/
814 AM CDT Mon Apr 7 2025
...FLOOD WARNING REMAINS IN EFFECT UNTIL WEDNESDAY EVENING...
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Meramec River near Sullivan.
* WHEN...Until Wednesday evening.
* IMPACTS...At 18.5 feet, Near this height, Missouri Route N will be
closed in both directions.
* ADDITIONAL DETAILS...
- At 7:29 AM CDT Monday the stage was 18.8 feet.
- Forecast...The river is expected to fall below flood stage
tomorrow afternoon.
- Flood stage is 11.0 feet.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Tue Wed Thu Fri Sat
Meramec River
Sullivan 11.0 18.8 12.0 9.6 8.2 7.4 6.9
&&
LAT...LON 3801 9122 3807 9126 3816 9116 3828 9110
3832 9097 3839 9091 3839 9082 3825 9092
3823 9105 3808 9111
$$
Gosselin416
WGUS83 KLSX 081402
FLSLSX
Flood Statement
National Weather Service St Louis MO
902 AM CDT Tue Apr 8 2025
...The Flood Warning is cancelled for the following river in
Missouri...
Big River at Byrnesville.
River forecasts are based on observed precipitation.
MOC099-081515-
/O.CAN.KLSX.FL.W.0005.000000T0000Z-250408T1402Z/
/BYRM7.2.ER.250405T0323Z.250407T0745Z.250408T1257Z.UU/
902 AM CDT Tue Apr 8 2025
...FLOOD WARNING IS CANCELLED...
The Flood Warning is cancelled for
the Big River at Byrnesville.
* ADDITIONAL DETAILS...
- At 8:45 AM CDT Tuesday the stage was 15.6 feet.
- Forecast...The river is forecast to fall to near 8.2 feet
Thursday morning.
&&
Fld Observed Forecasts (7:00 am)
Location Stg Stage Wed Thu Fri Sat Sun
Big River
Byrnesville 16.0 15.6 9.2 8.2 7.4 6.9 6.4
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$
GosselinWhat 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 St. Louis, MO wrote its last area forecast discussion before this river flood warning went out at Apr 3, 6:46 AM CDT, 4 hours 7 minutes earlier. Its key messages:
- A Flood Watch remains in effect for today through Saturday night. Periods of rain and thunderstorms are expected today through Saturday night. The heaviest rainfall is expected Friday afternoon into Friday night for a large portion of the area. Heavy rain is also likely for southeast Missouri and southwest/south central Illinois on Saturday.
- Severe thunderstorms are possible Friday afternoon and evening. The primary hazard is large hail.
Area forecast discussion, Apr 3, 6:46 AM CDT, 4 hours 7 minutes before
Area Forecast Discussion...Updated Aviation
National Weather Service Saint Louis MO
646 AM CDT Thu Apr 3 2025
.KEY MESSAGES...
- A Flood Watch remains in effect for today through Saturday
night. Periods of rain and thunderstorms are expected today
through Saturday night. The heaviest rainfall is expected Friday
afternoon into Friday night for a large portion of the area.
Heavy rain is also likely for southeast Missouri and
southwest/south central Illinois on Saturday.
- Severe thunderstorms are possible Friday afternoon and evening.
The primary hazard is large hail.
&&
.SHORT TERM... (Through Saturday)
Issued at 413 AM CDT Thu Apr 3 2025
The primary forecast concern for today through Saturday is heavy
rain and flooding potential. There is also a possible severe
thunderstorm threat for Friday afternoon/evening, mainly across
southern portions of the forecast area. Convection has pushed the
effective boundary all the way into far northeast Texas and
southern Arkansas. The actual cold front stretches from east
central Oklahoma through south central Missouri into south central
Illinois based on wind shifts and falling dew point temperatures.
The first in a series of short waves is moving through eastern New
Mexico/western Texas this morning, and this wave will move
through the southern Plains today and across Missouri and Illinois
tonight. This will bring our area the first round of rain, mainly
this afternoon and tonight. This first round is expected to be
relatively light as guidance shows limited instability for
convection and higher precipitable water values in excess of 1.5
inches stay south of our area. A few showers may linger
overnight tonight, but most guidance shows a break in the rainfall
after midnight before the next wave moves in Friday.
Friday sees another short wave eject northeast over the boundary,
and this one forces low level cyclogenesis over the southeast
Plains which enhances the low level southerly flow over the Lower
Mississippi Valley. This pushes the boundary into northern
Arkansas/southern Missouri and the enhanced instability and surge of
moisture will produce periods of heavy rain, likely beginning late
Friday morning or early afternoon and continuing until the slow
moving low level low pressure system moves east of the Mississippi
Valley on Saturday night. The GEFS mean P-wat values shoot
up over 1.5 inches across the southern 2/3 of the forecast area which
is in the 99.5+ percentile of climatology. Additionally, the ECMWF
QPF Extreme Forecast Index continues to highlight an area generally
along and south of I-44 in Missouri and I-70 in Illinois between 00Z
Saturday and 00Z Sunday. There will likely be a sharp gradient
between locations that get an inch of rain or less, and locations
that receive rainfall in excess of 4-5 inches Friday through Saturday
night, although where that gradient will ultimately be is still
uncertain. However, drier air does try to undercut the moisture
after the initial surge Friday afternoon and Friday night. That
should reduce the heavy rain threat for most of the area, except
southeast Missouri and southwest/south central Illinois where
P-wats remain high through much of Saturday. With all this in mind,
the Flood Watch looks like it's in the right place for the right
times.
Lastly, some of the thunderstorms on Friday afternoon/evening may be
severe, primarily across southeast Missouri and southern Illinois.
Guidance is showing increasing MUCAPE during the afternoon as the
front surges northward. The RAP looks like it's the most aggressive
in moving the front all the way through the St. Louis Metro area an
into central Illinois by 06Z Saturday, bringing MUCAPE values up to
nearly 2000 J/Kg into our area. The GFS isn't nearly as aggressive,
but still brings elevated instability up to the I-70 corridor.
Deep layer shear of 50+ kts would be more than enough to produce
severe convection in either case given the thermodynamics, with the
primary threat being large hail. If the RAP is ultimately more
correct, then all hazards are on the table once again.
Carney
&&
.LONG TERM... (Sunday through Wednesday)
Issued at 413 AM CDT Thu Apr 3 2025
The broad western trough will begin phasing back in with the
northern stream as it tracks slowly across the southern Great Plains
on Sunday morning. Medium range guidance shows this process taking
about 24 hours, and the base of the unified long wave trough swings
through the Mississippi Valley on Monday. The GFS and to a lesser
extent the ECMWF kick out one last shot of precip over Missouri and
Illinois on Sunday as the main lobe of vorticity associated with the
southern stream wave moves across the area. At least the past
couple of runs of the GFS have shown a closed 850mb low with what
looks suspiciously like a cyclonically turning warm conveyor belt
feeding warm moist air back into the cold sector of the system. A
cross section at 12Z through the system generally along the
Mississippi River shows 20+ microbars of lift in a deep layer
through the dendritic growth zone, along with at least conditional
static instability, if not full on convective instability. If this
was January and boundary layer/surface temperatures were 10-15
degrees colder, we might be in for 5-7 inches of snow! As it is,
the deterministic GFS is an outlier as none of the ENS members
produce snow, and only only three GEFS and 3 GEPS members of the
LREF show any snow. That said, I wouldn't be surprised to see a
shot of snow or rain/snow mix Sunday morning.
The long wave trough remains progressive as it moves east through
midweek, although the LREF is indicating uncertainty in the position
and amplitude of the wave as it moves across the eastern half of the
U.S. The mean agrees well with deterministic guidance showing the
trough bottoming out Tuesday morning stretching from east of The
Hudson Bay all the way into the eastern Gulf. This opens the door
for a cold Canadian high to drop into the Mississippi Valley late
Monday into Monday night. The GFS spits out a little QPF as the cold
front moves through, but it's questionable whether there will be
enough moisture available for precip. The primary impact of this
high still looks like sub-freezing temperatures Tuesday morning. The
high then move into the Ohio Valley on Tuesday night an Wednesday
which brings temperatures back up to close to normal.
Carney
&&
.AVIATION... (For the 12z TAFs through 12z Friday Morning)
Issued at 636 AM CDT Thu Apr 3 2025
Showers and a few embedded thunderstorms are expected to
overspread much of the area late this morning into the afternoon.
Until then, VFR flight conditions are expected to prevail.
Ceilings/visibilities are expected to fall to MVFR along and south
of I-70 once the rain starts, and ceilings will likely fall to
IFR across the eastern Ozarks by mid/late afternoon. IFR ceilings
may creep north to near I-70 this evening and persist overnight.
VFR conditions are expected to prevail farther north across
northeast Missouri and west central Illinois where rain is
expected to be much lighter and not as widespread.
Carney
&&
.LSX WATCHES/WARNINGS/ADVISORIES...
MO...Flood Watch through late Saturday night for Crawford MO-Franklin
MO-Iron MO-Jefferson MO-Madison MO-Reynolds MO-Saint
Francois MO-Saint Louis City MO-Saint Louis MO-Sainte
Genevieve MO-Washington MO.
IL...Flood Watch through late Saturday night for Bond IL-Clinton IL-
Fayette IL-Madison IL-Marion IL-Monroe IL-Randolph IL-Saint
Clair IL-Washington IL.
&&
WFO LSXHazardous weather outlook, Apr 3, 4:23 AM CDT, 6 hours 30 minutes before
Hazardous Weather Outlook National Weather Service St Louis MO 423 AM CDT Thu Apr 3 2025 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-041200- Greene IL-Macoupin IL-Montgomery IL-Bond IL-Fayette IL-Clinton IL- Marion IL-Washington IL-Randolph IL-Adams IL-Brown IL-Pike IL- Calhoun IL-Jersey IL-Madison IL-Saint Clair IL-Monroe IL-Knox MO- Lewis MO-Shelby MO-Marion MO-Monroe MO-Ralls MO-Pike MO-Boone MO- Audrain MO-Moniteau MO-Cole MO-Osage MO-Callaway MO-Montgomery MO- Lincoln MO-Gasconade MO-Warren MO-Saint Charles MO-Franklin MO- Saint Louis MO-Saint Louis City MO-Jefferson MO-Crawford MO- Washington MO-Saint Francois MO-Sainte Genevieve MO-Iron MO- Madison MO-Reynolds MO- 423 AM CDT Thu Apr 3 2025 This Hazardous Weather Outlook is for portions of eastern and central Missouri as well as west central and southwest Illinois. .DAY ONE...Today and tonight. Persistent showers and thunderstorms are expected this afternoon and tonight. A Flood Watch remains in effect for parts of east central and southeast Missouri into southwest and south central Illinois. .DAYS TWO THROUGH SEVEN...Friday through Wednesday. Periods of heavy rain and thunderstorms are expected Friday through Saturday night. The heaviest rainfall accumulations are expected across parts of southeast Missouri into southwest Illinois. This heavy rain may cause moderate to major river flooding and significant flash flooding for parts of east central and southeast Missouri as well as southwest and south central Illinois where a Flood Watch is in effect. .SPOTTER INFORMATION STATEMENT... Spotter activation is not expected at this time. Carney
In the hours before
Local storm report, Apr 3, 9:08 AM CDT, 1 hour 45 minutes before
Preliminary Local Storm Report
National Weather Service St Louis MO
908 AM CDT Thu Apr 3 2025
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0444 PM Hail 2 N O'Fallon 38.62N 89.92W
04/02/2025 M1.75 Inch St. Clair IL Public
Report from mPING: Golf Ball (1.75 in.).
&&
MFThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 3, 10:53 AM CDT | River Flood Warning | LSX | Franklin | 5 days |
| Apr 3, 10:53 AM CDT | River Flood Warning | LSX | Jefferson, Saint Louis | 7 days |
| Apr 3, 10:53 AM CDT | River Flood Warning | LSX | Jefferson, Saint Louis | 7 days |
| Apr 3, 10:53 AM CDT | River Flood Warning | LSX | Crawford, Washington | 5 days |
| Apr 3, 10:53 AM CDT | River Flood Warning | LSX | Crawford | 4 days |
| Apr 3, 10:53 AM CDT | River Flood Warning | LSX | Jefferson, Saint Louis | 7 days |
| Apr 3, 10:53 AM CDT | River Flood Warning | LSX | Franklin, Jefferson | 6 days |
| Apr 3, 10:53 AM CDT | River Flood Warning | LSX | Jefferson, Saint Louis | 7 days |
Nearby
River Flood Warnings in Missouri, 2025Every river flood warning in 2025
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.