Alert archive / Missouri / River Flood Warnings in 2018
River Flood Warning 10, NWS St. Louis, MO
NWS St. Louis, MO issued this river flood warning at Feb 24, 2018, 7:42 AM CST for Jefferson County, Missouri. It took effect at Feb 24, 2018, 9:16 PM CST. It was in force for 63 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 24, 2018, 7:42 AM CST (13:42 UTC)
- In effect from
- Feb 24, 2018, 9:16 PM CST
- Expired
- Feb 27, 2018, 12:00 PM CST
- In force
- 63 hr
- Issued by
- NWS St. Louis, MO
- Area
- Storm-based polygon
- Flood severity
- Minor
County Jefferson County, MO
The radar
The St Louis radar (KLSX), 35 km from the middle of the area, began a volume at 13:42 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).
- 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.
118
WGUS43 KLSX 241342
FLWLSX
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service St Louis MO
742 AM CST Sat Feb 24 2018
...The National Weather Service in St. Louis has issued a Flood
Warning for the following rivers in Missouri...
Big River at Byrnesville
Meramec River near Steelville
Meramec River near Sullivan
.This Flood Warning is a result of 1 to 2 inches of precipitation the
past 24 hours and 1 to 1.5 inches forecast in the next 24 hours...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
The National Weather Service will monitor
this developing situation and issue follow up statements as
conditions or forecasts change.
Safety message: Never drive cars, trucks, or sport utility vehicles
through flooded areas. The water may be too deep to allow for safe
passage.
This product, along with additional weather and stream information,
is available at http://water.weather.gov/ahps2/index.php?wfo=lsx.
&&
MOC099-251342-
/O.NEW.KLSX.FL.W.0010.180225T1048Z-180227T1800Z/
/BYRM7.1.ER.180225T1048Z.180226T0600Z.180226T1800Z.UU/
742 AM CST Sat Feb 24 2018
The National Weather Service in St. Louis has issued a
* Flood Warning for
the Big River at Byrnesville
* from late tonight to Tuesday afternoon.
* At 6:45 AM Saturday the stage was 10.8 feet.
* Flood stage is 16.0 feet.
* Minor flooding is forecast.
* The river is forecast to rise above flood stage by early tomorrow
and crest near 16.9 feet by early Monday morning. The river is
forecast to fall below flood stage by Monday early afternoon.
* Impact: At 15.5 feet...Rockford Beach Park at the Highway MM bridge
begins flooding.
&&
Fld Latest 7 a.m. Forecast
LOCATION Stg Obs Stg 02/25 02/26 02/27 02/28 03/01
Big River
Byrnesville 16.0 10.80 16.1 16.6 11.2 7.7 6.5
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$
MOC055-251341-
/O.NEW.KLSX.FL.W.0011.180225T0400Z-180227T0951Z/
/SEEM7.1.ER.180225T0400Z.180225T1200Z.180226T0951Z.NO/
742 AM CST Sat Feb 24 2018
The National Weather Service in St. Louis has issued a
* Flood Warning for
the Meramec River near Steelville
* from this evening to late Monday night.
* At 7:00 AM Saturday the stage was 4.9 feet.
* Flood stage is 12.0 feet.
* Minor flooding is forecast.
* The river is forecast to rise above flood stage by tonight and
crest near 14.1 feet by tomorrow morning. The river is forecast to
fall below flood stage by Monday morning.
* Impact: At 12.0 feet...Agricultural and recreational areas along
the right bank flood. At Adventure Outdoors west of Steelville,
the store begins to flood near this height.
* Impact: At 9.0 feet...At Adventure Outdoors west of Steelville, the
campgrounds become flooded near this height.
&&
Fld Latest 7 a.m. Forecast
LOCATION Stg Obs Stg 02/25 02/26 02/27 02/28 03/01
Meramec River
Steelville 12.0 4.91 14.1 11.5 6.6 4.4 3.4
&&
LAT...LON 3793 9152 3800 9152 3806 9125 3801 9121
$$
MOC055-221-251341-
/O.NEW.KLSX.FL.W.0012.180224T1902Z-180227T2330Z/
/SLLM7.1.ER.180224T1902Z.180225T1200Z.180226T2330Z.NO/
742 AM CST Sat Feb 24 2018
The National Weather Service in St. Louis has issued a
* Flood Warning for
the Meramec River near Sullivan
* from this afternoon to Tuesday afternoon.
* At 7:00 AM Saturday the stage was 8.8 feet.
* Flood stage is 11.0 feet.
* Minor flooding is forecast.
* The river is forecast to rise above flood stage by this afternoon
and crest near 15.5 feet by tomorrow morning. The river is forecast
to fall below flood stage by Monday afternoon.
* Impact: At 14.5 feet...At this height the Arapaho Campground will
evacuate campers. This campground is about 8.5 river miles
downstream from the gage. About 14.3 miles upstream of the gage...
Cave Road access to Ozark Outdoors begins flooding near this
height.
* Impact: At 14.0 feet...The main entrance road to the Meramec State
Park campground begins flooding...blocking acess to cabins 1-8...
the picnic and playground areas, and the Wilderness Trailhead
parking lot. At Onondaga Cave State Park...the primary entrance to
the campground is closed and the secondary entrance is used near
this height.
* Impact: At 13.5 feet...Cave Road begins flooding at Onondaga Cave
State Park near this height.
* Impact: At 12.0 feet...The main entrance gate at Onondaga Cave
State Park begins flooding near this height. This may eventually
force the park to use the rear entrance as the primary entrance to
the park.
* Impact: At 11.5 feet...A small bridge in the back of Meramec State
Park park is flooded, cutting the park in two. If the river
continues to rise...park officials will evacuate the campgrounds at
this point.
* Impact: At 11.0 feet...Right Bank begins to overflow flooding
wooded areas.
&&
Fld Latest 7 a.m. Forecast
LOCATION Stg Obs Stg 02/25 02/26 02/27 02/28 03/01
Meramec River
Sullivan 11.0 8.76 15.5 13.3 9.2 7.0 6.0
&&
LAT...LON 3800 9120 3806 9125 3829 9109 3840 9090
3837 9082
$$9 follow-up statements
413
WGUS83 KLSX 250233
FLSLSX
Flood Statement
National Weather Service St Louis MO
833 PM CST Sat Feb 24 2018
...The Flood Warning continues for the following rivers in
Missouri...
Big River at Byrnesville
.This Flood Warning is a result of up to 3 inches of rainfall the
past 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 or forecasts change.
Safety message: Never drive cars, trucks, or sport utility vehicles
through flooded areas. The water may be too deep to allow for safe
passage.
This product, along with additional weather and stream information,
is available at http://water.weather.gov/ahps2/index.php?wfo=lsx.
&&
MOC099-260233-
/O.EXT.KLSX.FL.W.0010.180225T0316Z-180228T0656Z/
/BYRM7.1.ER.180225T0316Z.180226T1200Z.180227T0656Z.UU/
833 PM CST Sat Feb 24 2018
The Flood Warning continues for
the Big River at Byrnesville
* until late Tuesday night.
* At 7:45 PM Saturday the stage was 15.5 feet.
* Flood stage is 16.0 feet.
* Minor flooding is forecast.
* The river is forecast to rise above flood stage by tonight and to
crest near 19.9 feet by Monday morning. The river is forecast to
fall below flood stage by early Tuesday morning.
* Impact: At 20.0 feet...South Byrnesville Road goes under water near
this level.
* Impact: At 19.1 feet...Backyards and one basement along Burgan
Grove Road 2 miles west of House Springs begin to flood.
* Impact: At 19.0 feet...Dutch Creek Road south of Byrnesville and
Byrnesville Road near John McKeever Road north of Byrnesville begin
to flood.
* Impact: At 18.1 feet...State Highway BB southeast of Cedar Hill
will be closed near this height.
* Impact: At 18.0 feet...Cedar Hill Road at Cedar Hill and Klondike
Road south of Cedar Hill begin to flood near this height.
&&
Fld Latest 7 a.m. Forecast
LOCATION Stg Obs Stg 02/25 02/26 02/27 02/28 03/01
Big River
Byrnesville 16.0 15.50 18.0 19.9 13.3 7.0 5.9
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$806
WGUS83 KLSX 250930
FLSLSX
Flood Statement
National Weather Service St Louis MO
330 AM CST Sun Feb 25 2018
...The flood warning continues for the following rivers in
Missouri...
Big River at Byrnesville
.This Flood Warning is a result of up to 3 inches of rainfall the
past 24 hours...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Safety message: Never drive cars, trucks, or sport utility vehicles
through flooded areas. The water may be too deep to allow for safe
passage.
This product, along with additional weather and stream information,
is available at http://water.weather.gov/ahps2/index.php?wfo=lsx.
&&
MOC099-260930-
/O.EXT.KLSX.FL.W.0010.000000T0000Z-180228T1355Z/
/BYRM7.1.ER.180225T0356Z.180226T1200Z.180227T1355Z.UU/
330 AM CST Sun Feb 25 2018
The Flood Warning continues for
the Big River at Byrnesville
* until Wednesday morning.
* At 2:45 AM Sunday the stage was 16.8 feet.
* Flood stage is 16.0 feet.
* Minor flooding is forecast.
* The river is forecast to crest near 19.9 feet by tomorrow morning,
then fall below flood stage Tuesday morning.
* Impact: At 20.0 feet...South Byrnesville Road goes under water near
this level.
* Impact: At 19.1 feet...Backyards and one basement along Burgan
Grove Road 2 miles west of House Springs begin to flood.
* Impact: At 19.0 feet...Dutch Creek Road south of Byrnesville and
Byrnesville Road near John McKeever Road north of Byrnesville begin
to flood.
* Impact: At 18.1 feet...State Highway BB southeast of Cedar Hill
will be closed near this height.
* Impact: At 18.0 feet...Cedar Hill Road at Cedar Hill and Klondike
Road south of Cedar Hill begin to flood near this height.
* Impact: At 15.5 feet...Rockford Beach Park at the Highway MM bridge
begins flooding.
&&
Fld Latest 7 a.m. Forecast
LOCATION Stg Obs Stg 02/26 02/27 02/28 03/01 03/02
Big River
Byrnesville 16.0 16.77 17.3 19.9 16.9 8.0 6.1
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$192
WGUS83 KLSX 251418
FLSLSX
Flood Statement
National Weather Service St Louis MO
818 AM CST Sun Feb 25 2018
...The Flood Warning continues for the following rivers in
Missouri...
Big River at Byrnesville
.This Flood Warning is a result of 2 to 3 inches of precipitation the
past 48 hours...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
The National Weather Service will monitor
this developing situation and issue follow up statements as
conditions or forecasts change.
Safety message: Never drive cars, trucks, or sport utility vehicles
through flooded areas. The water may be too deep to allow for safe
passage.
This product, along with additional weather and stream information,
is available at http://water.weather.gov/ahps2/index.php?wfo=lsx.
&&
MOC099-261418-
/O.EXT.KLSX.FL.W.0010.000000T0000Z-180228T1703Z/
/BYRM7.1.ER.180225T0356Z.180226T1800Z.180227T1703Z.UU/
818 AM CST Sun Feb 25 2018
The Flood Warning continues for
the Big River at Byrnesville
* until Wednesday morning.
* At 7:45 AM Sunday the stage was 17.5 feet.
* Flood stage is 16.0 feet.
* Minor flooding is forecast.
* The river is forecast to crest near 19.9 feet by tomorrow early
afternoon, then fall below flood stage late Tuesday morning.
* Impact: At 19.1 feet...Backyards and one basement along Burgan
Grove Road 2 miles west of House Springs begin to flood.
* Impact: At 19.0 feet...Dutch Creek Road south of Byrnesville and
Byrnesville Road near John McKeever Road north of Byrnesville begin
to flood.
* Impact: At 18.1 feet...State Highway BB southeast of Cedar Hill
will be closed near this height.
* Impact: At 18.0 feet...Cedar Hill Road at Cedar Hill and Klondike
Road south of Cedar Hill begin to flood near this height.
&&
Fld Latest 7 a.m. Forecast
LOCATION Stg Obs Stg 02/26 02/27 02/28 03/01 03/02
Big River
Byrnesville 16.0 17.54 19.8 17.6 9.5 6.4 5.3
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$440
WGUS83 KLSX 251703
FLSLSX
Flood Statement
National Weather Service St Louis MO
1103 AM CST Sun Feb 25 2018
...The flood warning continues for the following rivers in
Missouri...
Big River at Byrnesville
Bourbeuse River at Union
.This Flood Warning is a result of 2 to 3 inches of precipitation the
past 48...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
The National Weather Service will monitor
this developing situation and issue follow up statements as
conditions or forecasts change.
Safety message: Never drive cars, trucks, or sport utility vehicles
through flooded areas. The water may be too deep to allow for safe
passage.
This product, along with additional weather and stream information,
is available at http://water.weather.gov/ahps2/index.php?wfo=lsx.
&&
MOC099-261703-
/O.EXT.KLSX.FL.W.0010.000000T0000Z-180301T0333Z/
/BYRM7.2.ER.180225T0356Z.180227T0000Z.180228T0333Z.UU/
1103 AM CST Sun Feb 25 2018
The Flood Warning continues for
the Big River at Byrnesville
* until Wednesday evening.
* At 10:45 AM Sunday the stage was 18.2 feet.
* Flood stage is 16.0 feet.
* Moderate flooding is forecast.
* The river is forecast to crest near 22.8 feet by tomorrow evening,
then fall below flood stage Tuesday before midnight.
* Impact: At 22.4 feet...At this level, Twin Rivers Bridge Road must
be closed.
* Impact: At 20.5 feet...Burgan Grove Road begins flooding near
Cottage Grove Road, cutting off access to Cottage Grove Road.
Highway W near Hoene Spring is closed as water crosses the
pavement.
* Impact: At 20.0 feet...South Byrnesville Road goes under water near
this level.
* Impact: At 19.1 feet...Backyards and one basement along Burgan
Grove Road 2 miles west of House Springs begin to flood.
* Impact: At 19.0 feet...Dutch Creek Road south of Byrnesville and
Byrnesville Road near John McKeever Road north of Byrnesville begin
to flood.
* Impact: At 18.1 feet...State Highway BB southeast of Cedar Hill
will be closed near this height.
&&
Fld Latest 7 a.m. Forecast
LOCATION Stg Obs Stg 02/26 02/27 02/28 03/01 03/02
Big River
Byrnesville 16.0 18.19 21.2 21.8 11.5 7.8 6.6
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$
MOC071-261702-
/O.EXT.KLSX.FL.W.0015.180226T0430Z-180228T2251Z/
/UNNM7.1.ER.180226T0430Z.180227T0000Z.180227T2251Z.NO/
1103 AM CST Sun Feb 25 2018
The Flood Warning continues for
the Bourbeuse River at Union
* from this evening to Wednesday afternoon.
* At 10:30 AM Sunday the stage was 11.8 feet.
* Flood stage is 15.0 feet.
* Minor flooding is forecast.
* The river is forecast to rise above flood stage by tonight and to
crest near 18.9 feet by tomorrow evening. The river is forecast to
fall below flood stage by Tuesday afternoon.
* Impact: At 17.0 feet...Flat Creek backs up to Smeltzer's Park.
&&
Fld Latest 7 a.m. Forecast
LOCATION Stg Obs Stg 02/26 02/27 02/28 03/01 03/02
Bourbeuse River
Union 15.0 11.77 17.2 18.1 10.3 6.1 4.3
&&
LAT...LON 3826 9123 3832 9133 3838 9137 3848 9094
3842 9087
$$472
WGUS83 KLSX 260212
FLSLSX
Flood Statement
National Weather Service St Louis MO
812 PM CST Sun Feb 25 2018
...The Flood Warning continues for the following rivers in
Missouri...
Big River at Byrnesville
.This Flood Warning is a result of 2 to 3 inches of rainfall the
past 48 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 or forecasts change.
Safety message: Never drive cars, trucks, or sport utility vehicles
through flooded areas. The water may be too deep to allow for safe
passage.
This product, along with additional weather and stream information,
is available at http://water.weather.gov/ahps2/index.php?wfo=lsx.
&&
MOC099-270212-
/O.EXT.KLSX.FL.W.0010.000000T0000Z-180301T0216Z/
/BYRM7.2.ER.180225T0356Z.180226T1800Z.180228T0216Z.UU/
812 PM CST Sun Feb 25 2018
The Flood Warning continues for
the Big River at Byrnesville
* until Wednesday evening.
* At 12:45 PM Sunday the stage was 18.6 feet.
* Flood stage is 16.0 feet.
* Moderate flooding is forecast.
* The river is forecast to crest near 22.8 feet by tomorrow early
afternoon, then fall below flood stage Tuesday evening.
* Impact: At 22.4 feet...At this level, Twin Rivers Bridge Road must
be closed.
* Impact: At 20.5 feet...Burgan Grove Road begins flooding near
Cottage Grove Road, cutting off access to Cottage Grove Road.
Highway W near Hoene Spring is closed as water crosses the
pavement.
* Impact: At 20.0 feet...South Byrnesville Road goes under water near
this level.
* Impact: At 19.1 feet...Backyards and one basement along Burgan
Grove Road 2 miles west of House Springs begin to flood.
* Impact: At 19.0 feet...Dutch Creek Road south of Byrnesville and
Byrnesville Road near John McKeever Road north of Byrnesville begin
to flood.
&&
Fld Latest 7 a.m. Forecast
LOCATION Stg Obs Stg 02/26 02/27 02/28 03/01 03/02
Big River
Byrnesville 16.0 18.58 22.2 20.9 11.5 7.9 6.5
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$370
WGUS83 KLSX 262034
FLSLSX
Flood Statement
National Weather Service St Louis MO
234 PM CST Mon Feb 26 2018
...The flood warning continues for the following rivers in
Missouri...
Big River at Byrnesville
.This Flood Warning is a result of an inch of rain the
past 48 hours and none forecast in the next 24 hours...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Rainfall heavier than forecast could cause river levels to rise even
higher than predicted. The National Weather Service will monitor
this developing situation and issue follow up statements as
conditions or forecasts change.
Safety message: Never drive cars, trucks, or sport utility vehicles
through flooded areas. The water may be too deep to allow for safe
passage.
This product, along with additional weather and stream information,
is available at http://water.weather.gov/ahps2/index.php?wfo=lsx.
&&
MOC099-272034-
/O.EXT.KLSX.FL.W.0010.000000T0000Z-180228T2215Z/
/BYRM7.2.ER.180225T0356Z.180226T1615Z.180227T2215Z.UU/
234 PM CST Mon Feb 26 2018
The Flood Warning continues for
the Big River at Byrnesville
* until Wednesday afternoon.
* At 1:45 PM Monday the stage was 22.5 feet.
* Flood stage is 16.0 feet.
* Moderate flooding is forecast.
* The river is forecast to fall below flood stage tomorrow afternoon.
&&
Fld Latest 7 a.m. Forecast
LOCATION Stg Obs Stg 02/27 02/28 03/01 03/02 03/03
Big River
Byrnesville 16.0 22.49 20.3 9.4 7.4 6.4 5.9
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$204
WGUS83 KLSX 270245
FLSLSX
Flood Statement
National Weather Service St Louis MO
845 PM CST Mon Feb 26 2018
...The flood warning continues for the following rivers in Missouri..
Big River at Byrnesville
.This Flood Warning is a result of recent heavy rainfall the previous week.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Safety message: Never drive cars, trucks, or sport utility vehicles
through flooded areas. The water may be too deep to allow for safe
passage.
This product, along with additional weather and stream information,
is available at http://water.weather.gov/ahps2/index.php?wfo=lsx.
&&
MOC099-280245-
/O.CON.KLSX.FL.W.0010.000000T0000Z-180228T2215Z/
/BYRM7.2.ER.180225T0356Z.180226T1615Z.180227T2215Z.UU/
845 PM CST Mon Feb 26 2018
The Flood Warning continues for
the Big River at Byrnesville
* until Wednesday afternoon.
* At 7:45 PM Monday the stage was 21.9 feet.
* Flood stage is 16.0 feet.
* Moderate flooding is forecast.
* The river is forecast to continue falling to below flood stage by
tomorrow afternoon.
* Impact: At 22.4 feet...At this level, Twin Rivers Bridge Road must
be closed.
* Impact: At 20.5 feet...Burgan Grove Road begins flooding near
Cottage Grove Road, cutting off access to Cottage Grove Road.
Highway W near Hoene Spring is closed as water crosses the
pavement.
&&
Fld Latest 7 a.m. Forecast
LOCATION Stg Obs Stg 02/27 02/28 03/01 03/02 03/03
Big River
Byrnesville 16.0 21.94 20.3 9.4 7.8 6.7 6.1
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$413
WGUS83 KLSX 271502
FLSLSX
Flood Statement
National Weather Service St Louis MO
902 AM CST Tue Feb 27 2018
...The flood warning continues for the following river in
Missouri...
Big River at Byrnesville
.This Flood Warning is a result of heavy rainfall across the
basin last week...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
The National Weather Service will monitor this developing situation and issue follow up statements as conditions or forecasts change.
Safety message: Never drive cars, trucks, or sport utility vehicles
through flooded areas. The water may be too deep to allow for safe
passage.
This product, along with additional weather and stream information,
is available at http://water.weather.gov/ahps2/index.php?wfo=lsx.
&&
MOC099-281502-
/O.EXT.KLSX.FL.W.0010.000000T0000Z-180228T1628Z/
/BYRM7.2.ER.180225T0356Z.180226T1615Z.180227T1628Z.UU/
902 AM CST Tue Feb 27 2018
The Flood Warning continues for
The Big River at Byrnesville
* Until late this morning.
* At 8:45 AM Tuesday the stage was 17.0 feet.
* Flood stage is 16.0 feet.
* Minor flooding is occurring.
* The river is forecast to fall back below flood stage late
this morning.
&&
Fld Latest 7 a.m. Forecast
LOCATION Stg Obs Stg 02/28 03/01 03/02 03/03 03/04
Big River
Byrnesville 16.0 17.01 8.9 8.0 7.6 7.0 6.3
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$054
WGUS83 KLSX 271708
FLSLSX
Flood Statement
National Weather Service St Louis MO
1108 AM CST Tue Feb 27 2018
...The flood warning is cancelled for the following river in
Missouri...
Big River at
Byrnesville
.This will be the final statement for this flooding event...
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Safety message: Never drive cars, trucks, or sport utility vehicles
through flooded areas. The water may be too deep to allow for safe
passage.
This product, along with additional weather and stream information,
is available at http://water.weather.gov/ahps2/index.php?wfo=lsx.
&&
MOC099-271738-
/O.CAN.KLSX.FL.W.0010.000000T0000Z-180228T1628Z/
/BYRM7.2.ER.180225T0356Z.180226T1615Z.180227T1605Z.UU/
1108 AM CST Tue Feb 27 2018
The Flood Warning is cancelled for
The Big River at Byrnesville.
* At 10:45 AM Tuesday the stage was 15.5 feet.
* Flood stage is 16.0 feet.
* The river fell below flood stage at 10:05 AM Tuesday.
* The river is forecast to continue to fall to near 8.0 feet
Thursday morning.
&&
Fld Latest 7 a.m. Forecast
LOCATION Stg Obs Stg 02/28 03/01 03/02 03/03 03/04
Big River
Byrnesville 16.0 15.52 8.9 8.0 7.6 7.0 6.3
&&
LAT...LON 3834 9060 3833 9068 3846 9063 3849 9057
$$What 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 Feb 24, 6:07 AM CST, 1 hour 35 minutes earlier.
Area forecast discussion, Feb 24, 6:07 AM CST, 1 hour 35 minutes before
Area Forecast Discussion...Updated Aviation
National Weather Service Saint Louis MO
607 AM CST Sat Feb 24 2018
.SHORT TERM... (Through Late Tonight)
Issued at 348 AM CST Sat Feb 24 2018
Ongoing heavy rain event is obviously the first concern. The
forecast looks to be working out pretty well with a large area of
rain forced by low level moisture convergence over a quasi-
stationary front stretching across southern Missouri. Rainfall
amounts since midnight range from about 0.20-0.60 inch stretching in
a band from near Vichy up into the St. Louis Metro area with the
higher amounts to the southwest of the STL Metro. This wave of rain
should end from southwest to northeast this morning from about 12Z
to 16Z as the 850mb flow veers and becomes more parallel to the
baroclinic zone. The axis of heaviest rain is within the
area of the flood watch so no changes to the watch are
anticipated at this time
Meanwhile, up across northeast Missouri, temperatures have fallen to
right around freezing, and freezing rain is currently being reported
in Kirksville. Still think some light ice accumulation on elevated
surfaces is likely this morning before temperatures climb back above
32, so the winter weather advisory still looks good.
A strong shortwave will drop into the Great Plains today forcing
cyclogenesis over western Arkansas or eastern Oklahoma. The
resulting low will move northeast as the positively tilted wave lifts
into the Midwest. Warm moist air in the warm sector of the system
will bring another wave of rain to our forecast area along with an
increased chance for thunderstorms. Highest QPF and chance for
flooding is south of the I-44 corridor in Missouri late this
afternoon and this evening ahead of the cold front. Additionally,
the NAM shows MUCAPE values between 500-1000 J/Kg in southeast
Missouri this evening. The GFS is not quite as aggressive with the
instability, but there will be more than enough shear to produce
severe thunderstorms if the higher instability can be realized.
Convective mode will be highly dependent on the amount of
instability which develops, but could range from a severe squall
line to low topped supercells. Regardless...the threat for severe
weather should be localized to southeast Missouri and southern
Illinois.
The cold front will move through quickly between 00Z and 05Z
tonight, bringing the wet weather to an end for the time being.
Increasing pressure gradient behind the front will likely produce
strong and gusty winds after FROPA with gusts to around 35 mph
likely...particularly in northeast Missouri into central Illinois.
Carney
.LONG TERM... (Sunday through Friday)
Issued at 348 AM CST Sat Feb 24 2018
There is fairly good agreement among the models that the period from
Sunday through Monday Night will be rather tranquil with above
normal and slowly moderating temperatures. Southwest flow aloft will
persist in the wake of the upper trof exiting the Great Lakes into
southeast Canada while weak high pressure to the south of the CWA
dominates. A fast-moving low-amplitude short wave trof will traverse
the region on Sunday night. Moisture appears to be quite limited
with this wave and present indications are it will be just
accompanied by some mid clouds.
Temperatures will continue to moderate Monday as 1) heights rise
aloft associated with modest ridging occurring in response to
upstream amplification featuring a digging/deepening west coast
upper low/trof, and 2) southerly flow returns bringing weak WAA. A
better boost in the warming appears on tap for Tuesday as flow aloft
become more southwesterly and WAA increases in response to
strengthening south-southwest low level flow.
From Tuesday Night through the end of the week the GFS and ECMWF
begin to diverge in the details of the forecast. This is most
prominent beginning late Wednesday night when they depart
significantly with the handling of the ejecting west coast upper
trof. First on Tuesday Night the ECWMF is rather stingy with the
amount and northern extent of a light precipitation event as a weak
impulse aloft traverse the area. The wetter GFS solution appears to
be a reflection of better low level moisture return. The GFS then
has the west coast trof ejecting across the Plains and through the
MS Valley Wednesday Night into Thursday bringing strong large scale
ascent and accompanied by a a well developed surface low and
warm/cold frontal systems. Alternatively the ECWMF has a cold
frontal passage due to a weak northern stream short wave with the
weakening west coast trof lagging back into the southern Rockies and
southern Plains. Overall the GFS has slightly better continuity.
While the GEFS shows a good deal of spread, it has more members than
not closer to the operational GFS solution, suggesting then another
wet period from Wednesday afternoon into Thursday morning.
Glass
&&
.AVIATION... (For the 12z TAFs through 12z Sunday Morning)
Issued at 549 AM CST Sat Feb 24 2018
Flight categories are going to be a challenge again this morning.
A persistent band of light to occasionally moderate and heavy rain
is affecting parts of southeast and east central Missouri as well
as southern Illinois. The rain has washed out some of the low
ceilings in its path, with many observations reporting 3,500 ft or
higher. Not sure how long these VFR ceilings will persist this
morning, but low MVFR and IFR clouds should build back from the
south through the morning as the rain ends. Elsewhere, IFR flight
conditions will continue to prevail this morning...possibly
lifting to low end MVFR early this afternoon. A strong storm
system will move through this afternoon and evening, bringing more
rain and thunderstorms, particularly to areas along and south of
I-44 in Missouri and I-64 in Illinois. The cold front associated
with this system will push through during the evening and wind
will pick up from the west-northwest, potentially gusting to 30kts
behind the front.
SPECIFICS FOR KSTL:
Low confidence forecast for ceilings at Lambert this morning.
Current VFR clouds could go IFR at almost any moment, but there is
enough of a hole over the Metro area and points to the southwest
where it's been raining for several hours tonight. Expect the hole
to fill at some point in the next 2 to 4 hours...perhaps sooner.
On the reverse side, visibility should improve after the rain
ends. The next wave of rain will move into the vicinity of the
terminal this afternoon. Think there will be more thunder with
this batch before it ends during the early evening. Cold front
is expected to pass through the terminal at about 04Z and we could
see wind gusts from the west-northwest up to around 30kts for a
few hours.
Carney
&&
.PRELIMINARY POINT TEMPS/POPS...
Saint Louis 55 34 57 34 / 100 80 0 5
Quincy 48 29 50 29 / 80 80 0 0
Columbia 53 30 54 30 / 80 80 0 5
Jefferson City 55 31 56 31 / 90 80 0 0
Salem 57 37 53 34 / 100 90 0 0
Farmington 60 35 57 33 / 100 80 0 5
&&
.LSX WATCHES/WARNINGS/ADVISORIES...
MO...Flood Watch through this evening for Crawford MO-Franklin MO-
Gasconade MO-Iron MO-Jefferson MO-Madison MO-Osage MO-
Reynolds MO-Saint Charles MO-Saint Francois MO-Saint Louis
City MO-Saint Louis MO-Sainte Genevieve MO-Warren MO-
Washington MO.
Winter Weather Advisory until 9 AM CST this morning for Knox MO-
Lewis MO.
IL...Flood Watch through this evening for Bond IL-Clinton IL-Fayette
IL-Madison IL-Marion IL-Monroe IL-Randolph IL-Saint Clair
IL-Washington IL.
&&
WFO LSXHazardous weather outlook, Feb 24, 4:27 AM CST, 3 hours 15 minutes before
Hazardous Weather Outlook National Weather Service Saint Louis MO 427 AM CST Sat Feb 24 2018 ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027- 034>036-041-042-047>052-059>065-072>075-084-085-099-251030- 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- 427 AM CST Sat Feb 24 2018 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 Freezing rain may produce a light glaze of ice in extreme northeast Missouri through mid morning. A winter weather advisory remains in effect for Knox and Lewis counties. Several rounds of showers and thunderstorms are expected through this evening which may result in locally heavy rainfall and flooding across parts of southeast and east central Missouri as well as southwest and south central Illinois. A flood watch remains in effect for this area. A few severe thunderstorms will be possible on Saturday afternoon and evening over parts of southeast Missouri as well as southwest and south central Illinois. Damaging winds will be the main threat although an isolated tornado is possible. .DAYS TWO THROUGH SEVEN...Sunday through Friday No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotters are asked to report any flooding or rainfall amounts over 1 inch to the National Weather Service. Spotters are also asked to report any ice accumulation from freezing rain. Glass
In the hours before
Local storm report, Feb 24, 6:32 AM CST, 1 hour 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
632 AM CST SAT FEB 24 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0628 AM HEAVY RAIN 2 E RICHMOND HEIGHTS 38.63N 90.29W
02/24/2018 M2.15 INCH ST. LOUIS CITY MO PUBLIC
THE DURATION OF THE HEAVY RAIN EVENT WAS 12
HOURS.
&&
PWLocal storm report, Feb 24, 6:33 AM CST, 1 hour 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ST LOUIS MO
633 AM CST SAT FEB 24 2018
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0633 AM HEAVY RAIN MARYLAND HEIGHTS 38.73N 90.48W
02/24/2018 M1.75 INCH ST. LOUIS MO PUBLIC
THE DURATION OF THE HEAVY RAIN EVENT WAS 12
HOURS.
&&
PWThe office that day
Everything else NWS St. Louis, MO issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 24, 12:49 AM CST | River Flood Warning | LSX | Osage | 49 hr |
| Feb 24, 3:53 AM CST | Areal Flood Advisory | LSX | Crawford, Franklin, Gasconade, Osage, Washington | 6 hr |
| Feb 24, 4:56 AM CST | Areal Flood Advisory | LSX | Jefferson, Saint Charles, Saint Louis, Warren, City of Saint Louis | 4 hr |
| Feb 24, 7:42 AM CST | River Flood Warning | LSX | Crawford | 68 hr |
| Feb 24, 7:42 AM CST | River Flood Warning | LSX | Crawford, Washington | 3 days |
| Feb 24, 9:03 AM CST | River Flood Warning | LSX | Reynolds | 64 hr |
| Feb 24, 4:23 PM CST | Flash Flood Warning | LSX | Crawford, Iron, Jefferson, Madison, Reynolds, Sainte Genevieve and 2 more | 6 hr |
Nearby
River Flood Warnings in Missouri, 2018Every river flood warning in 2018
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.