Alert archive / Pennsylvania / River Flood Warnings in 2021
River Flood Warning 53, NWS Philadelphia/Mount Holly
NWS Philadelphia/Mount Holly issued this river flood warning at Sep 1, 2021, 6:38 PM EDT for Chester County, Delaware County, Pennsylvania. It took effect at Sep 1, 2021, 9:58 PM EDT. It was in force for 23 hr.
The area
The outline as issued.
The facts
- Issued
- Sep 1, 2021, 6:38 PM EDT (22:38 UTC)
- In effect from
- Sep 1, 2021, 9:58 PM EDT
- Expired
- Sep 2, 2021, 9:03 PM EDT
- In force
- 23 hr
- Issued by
- NWS Philadelphia/Mount Holly
- Area
- Storm-based polygon
- Flood severity
- Moderate
Counties Chester County, PA, Delaware County, PA
The radar
The Philadelphia radar (KDIX), 102 km from the middle of the area, began a volume at 22:39 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 Brandywine Creek at Chadds Ford (CDFP1). The gauge peaked at 21.04 ft at Sep 2, 2021, 5:00 AM EDT.
- Action stage
- 8 ft
- Minor stage
- 9 ft
- Moderate stage
- 11 ft
- Major stage
- 13 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 01481000, 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.
162
WGUS41 KPHI 012238
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
638 PM EDT Wed Sep 1 2021
...The National Weather Service in Mount Holly NJ has issued a Flood
Warning for the following rivers in Pennsylvania...Delaware...
Brandywine Creek At Chadds Ford affecting Delaware and Chester
Counties.
Brandywine Creek At Wilmington affecting New Castle County.
For the Brandywine Creek...including Chadds Ford, Wilmington...
Moderate flooding is forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Additional information is available at www.weather.gov/phi.
PAC029-045-021045-
/O.NEW.KPHI.FL.W.0053.210902T0500Z-210903T0222Z/
/CDFP1.2.ER.210902T0500Z.210902T1200Z.210902T2021Z.NO/
638 PM EDT Wed Sep 1 2021
The National Weather Service in Mount Holly has issued a
* Flood Warning for
the Brandywine Creek At Chadds Ford.
* From late tonight to Thursday evening.
* At 5:46 PM EDT Wednesday the stage was 4.3 feet.
* Flood stage is 9.0 feet.
* Moderate flooding is forecast.
* Forecast...The river is expected to rise above flood stage just
after midnight tonight to a crest of 12.4 feet tomorrow morning.
It will then fall below flood stage tomorrow afternoon.
* Impact...At 8.0 feet, Open adjacent land next to the creek floods.
* Impact...At 10.0 feet, The intersections of Creek Road and Route
926 near Pocopson floods upstream of Chadds Ford.
* Impact...At 11.8 feet, Brandywine River Museum begins to take on
water. Route 1 also takes on water.
* Impact...At 12.0 feet, Businesses upstream of the gage begin to
flood.
* Impact...At 13.0 feet, Residential evacuations begin at this
stage. Route 1 and Route 100 are closed. Fairville Road is also
closed.
* Flood History...This crest compares to a previous crest of 12.3
feet on 10/09/2005.
&&
Fld Observed Forecasts (8 pm EDT)
Location Stg Stg Day/Time Thu Fri Sat
Brandywine Creek
Chadds Ford 9.0 4.3 Wed 5 pm EDT 7.0 3.7 MSG
&&
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
$$
DEC003-021045-
/O.NEW.KPHI.FL.W.0054.210902T1600Z-210903T0000Z/
/WMND1.1.ER.210902T1600Z.210902T1600Z.210902T1800Z.UU/
638 PM EDT Wed Sep 1 2021
The National Weather Service in Mount Holly has issued a
* Flood Warning for
the Brandywine Creek At Wilmington.
* From Thursday afternoon to Thursday evening.
* At 6:15 PM EDT Wednesday the stage was 12.6 feet.
* Flood stage is 16.5 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage early
tomorrow afternoon to a crest of 16.5 feet early tomorrow
afternoon. It will then fall below flood stage early tomorrow
afternoon.
* Impact...At 14.5 feet, Minor flooding begins along the creek in
the Brandywine State Park.
* Impact...At 16.5 feet, North Park Drive, west of North Market
Street, in Brandywine State Park is subject to flooding and
closures.
* Impact...At 17.0 feet, Some flooding begins in the historic
Breck's Mill area in Montchanin.
* Flood History...This crest compares to a previous crest of 16.4
feet on 04/16/2007.
&&
Fld Observed Forecasts (8 pm EDT)
Location Stg Stg Day/Time Thu Fri Sat
Brandywine Creek
Wilmington 16.5 12.6 Wed 6 pm EDT 15.3 13.0 MSG
&&
LAT...LON 3982 7553 3975 7549 3969 7552 3979 7560
$$
CMS7 follow-up statements
045
WGUS41 KPHI 020158
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
958 PM EDT Wed Sep 1 2021
...Forecast flooding changed from Moderate to Major severity and
increased in duration for the following rivers in Pennsylvania...
Delaware...
Brandywine Creek At Chadds Ford affecting Delaware and Chester
Counties.
Brandywine Creek At Wilmington affecting New Castle County.
For the Brandywine Creek...including Chadds Ford, Wilmington...Major
flooding is forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Additional information is available at www.weather.gov/phi.
PAC029-045-021400-
/O.EXT.KPHI.FL.W.0053.210902T0158Z-210903T0900Z/
/CDFP1.3.ER.210902T0050Z.210902T1200Z.210903T0300Z.NO/
958 PM EDT Wed Sep 1 2021
...Forecast flooding increased from Moderate to Major severity and
increased in duration until early Friday morning...
The Flood Warning continues for
the Brandywine Creek At Chadds Ford.
* From this evening to late Thursday night.
* At 9:30 PM EDT Wednesday the stage was 9.2 feet.
* Flood stage is 9.0 feet.
* Minor flooding is occurring and major flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 9:30 PM EDT Wednesday was 9.2 feet.
* Forecast...The river is expected to rise to a crest of 14.5 feet
tomorrow morning. It will then fall below flood stage late
tomorrow evening.
* Impact...At 8.0 feet, Open adjacent land next to the creek floods.
* Impact...At 10.0 feet, The intersections of Creek Road and Route
926 near Pocopson floods upstream of Chadds Ford.
* Impact...At 11.8 feet, Brandywine River Museum begins to take on
water. Route 1 also takes on water.
* Impact...At 12.0 feet, Businesses upstream of the gage begin to
flood.
* Impact...At 13.0 feet, Residential evacuations begin at this
stage. Route 1 and Route 100 are closed. Fairville Road is also
closed.
* Impact...At 14.0 feet, Businesses along Route 1 and Creek Road
take on water.
* Flood History...This crest compares to a previous crest of 14.6
feet on 08/19/1955.
&&
Fld Observed Forecasts (8 pm EDT)
Location Stg Stg Day/Time Thu Fri Sat
Brandywine Creek
Chadds Ford 9.0 9.2 Wed 9 pm EDT 9.8 5.2 3.5
&&
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
$$
DEC003-021400-
/O.EXT.KPHI.FL.W.0054.210902T0509Z-210903T0752Z/
/WMND1.2.ER.210902T0509Z.210902T1200Z.210903T0152Z.UU/
958 PM EDT Wed Sep 1 2021
...Forecast flooding increased from Minor to Moderate severity and
increased in duration until early Friday morning...
The Flood Warning continues for
the Brandywine Creek At Wilmington.
* From late tonight to late Thursday night.
* At 9:16 PM EDT Wednesday the stage was 15.1 feet.
* Flood stage is 16.5 feet.
* Moderate flooding is forecast.
* Forecast...The river is expected to rise above flood stage just
after midnight tonight to a crest of 18.8 feet tomorrow morning.
It will then fall below flood stage late tomorrow evening.
* Impact...At 14.5 feet, Minor flooding begins along the creek in
the Brandywine State Park.
* Impact...At 16.5 feet, North Park Drive, west of North Market
Street, in Brandywine State Park is subject to flooding and
closures.
* Impact...At 17.0 feet, Some flooding begins in the historic
Breck's Mill area in Montchanin.
* Impact...At 18.0 feet, Ramsey Road is subject to closures between
Del. 92 and Beaver Dam Road as the Brandywine backs up into Ransey
Run.
* Impact...At 19.0 feet, Serious flooding at the Dupont Experimental
Station. Historic Breck's Mill area in Montchanin experiences
significant flooding. Hagley Creek Road as well as Barley Mill
Road are flooded. The Post Office is flooded as is the museum and
library.
* Impact...At 19.5 feet, Widespread flooding occurs along the creek
in Wilmington. Rockland Road from Black Gates Road to Country Club
Drive is flooded as is Rockland Road from Adams Drive to Mt.
Lebanon Road. The 1300 block of East 12th Street is flooded
impacting access to I-495.
* Flood History...This crest compares to a previous crest of 18.7
feet on 08/28/2011.
&&
Fld Observed Forecasts (8 pm EDT)
Location Stg Stg Day/Time Thu Fri Sat
Brandywine Creek
Wilmington 16.5 15.1 Wed 9 pm EDT 17.0 13.8 12.8
&&
LAT...LON 3982 7553 3975 7549 3969 7552 3979 7560
$$
Meola645
WGUS81 KPHI 020505
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
105 AM EDT Thu Sep 2 2021
...The Flood Warning continues for the following rivers in
Pennsylvania...
Brandywine Creek At Chadds Ford affecting Delaware and Chester
Counties.
For the Brandywine Creek...including Chadds Ford...Major flooding is
forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Additional information is available at www.weather.gov/phi.
PAC029-045-021715-
/O.CON.KPHI.FL.W.0053.000000T0000Z-210903T0900Z/
/CDFP1.3.ER.210902T0050Z.210902T0800Z.210903T0300Z.NR/
105 AM EDT Thu Sep 2 2021
...The Flood Warning remains in effect...
The Flood Warning continues for
the Brandywine Creek At Chadds Ford.
* Until late tonight.
* At 12:30 AM EDT Thursday the stage was 13.6 feet.
* Flood stage is 9.0 feet.
* Major flooding is occurring and major flooding is forecast. This
approaches the flood of record.
* Recent Activity...The maximum river stage in the 24 hours ending
at 12:30 AM EDT Thursday was 13.6 feet.
* Forecast...The river is expected to rise to a crest of 16.6 feet
early this morning. It will then fall below flood stage late this
evening.
* Impact...At 8.0 feet, Open adjacent land next to the creek floods.
* Impact...At 10.0 feet, The intersections of Creek Road and Route
926 near Pocopson floods upstream of Chadds Ford.
* Impact...At 11.8 feet, Brandywine River Museum begins to take on
water. Route 1 also takes on water.
* Impact...At 12.0 feet, Businesses upstream of the gage begin to
flood.
* Impact...At 13.0 feet, Residential evacuations begin at this
stage. Route 1 and Route 100 are closed. Fairville Road is also
closed.
* Impact...At 14.0 feet, Businesses along Route 1 and Creek Road
take on water.
* Flood History...This crest compares to a previous crest of 16.6
feet on 06/22/1972.
&&
Fld Observed Forecasts (2 am EDT)
Location Stg Stg Day/Time Fri Sat Sun
Brandywine Creek
Chadds Ford 9.0 13.6 Thu 12 am ED 8.2 4.4 MSG
&&
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
$$
Meola670
WGUS81 KPHI 020555
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
155 AM EDT Thu Sep 2 2021
...The Flood Warning continues for the following rivers in
Pennsylvania...
Brandywine Creek At Chadds Ford affecting Delaware and Chester
Counties.
For the Brandywine Creek...including Chadds Ford...Major flooding is
forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Additional information is available at www.weather.gov/phi.
PAC029-045-021800-
/O.CON.KPHI.FL.W.0053.000000T0000Z-210903T0900Z/
/CDFP1.3.ER.210902T0050Z.210902T0900Z.210903T0300Z.NR/
155 AM EDT Thu Sep 2 2021
...The Flood Warning remains in effect...
The Flood Warning continues for
the Brandywine Creek At Chadds Ford.
* Until late tonight.
* At 1:30 AM EDT Thursday the stage was 16.8 feet.
* Flood stage is 9.0 feet.
* Major flooding is occurring and major flooding is forecast. This
exceeds the flood of record.
* Recent Activity...The maximum river stage in the 24 hours ending
at 1:30 AM EDT Thursday was 16.8 feet.
* Forecast...The river is expected to rise to a crest of 18.0 feet
early this morning. It will then fall below flood stage late this
evening.
* Impact...At 8.0 feet, Open adjacent land next to the creek floods.
* Impact...At 10.0 feet, The intersections of Creek Road and Route
926 near Pocopson floods upstream of Chadds Ford.
* Impact...At 11.8 feet, Brandywine River Museum begins to take on
water. Route 1 also takes on water.
* Impact...At 12.0 feet, Businesses upstream of the gage begin to
flood.
* Impact...At 13.0 feet, Residential evacuations begin at this
stage. Route 1 and Route 100 are closed. Fairville Road is also
closed.
* Impact...At 14.0 feet, Businesses along Route 1 and Creek Road
take on water.
* Flood History...This crest compares to a previous crest of 17.2
feet on 09/17/1999.
&&
Fld Observed Forecasts (2 am EDT)
Location Stg Stg Day/Time Fri Sat Sun
Brandywine Creek
Chadds Ford 9.0 16.8 Thu 1 am EDT 8.2 4.4 MSG
&&
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
$$
Meola873
WGUS81 KPHI 020723 RRA
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
323 AM EDT Thu Sep 2 2021
...The Flood Warning is extended for the following rivers in
Pennsylvania...
Brandywine Creek At Chadds Ford affecting Delaware and Chester
Counties.
For the Brandywine Creek...including Chadds Ford, Wilmington...Major
flooding is forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Be especially cautious at night when it is harder to recognize the
dangers of flooding.
Additional information is available at www.weather.gov/phi.
PAC029-045-021930-
/O.EXT.KPHI.FL.W.0053.000000T0000Z-210903T1117Z/
/CDFP1.3.ER.210902T0050Z.210902T0800Z.210903T0517Z.NR/
323 AM EDT Thu Sep 2 2021
...The Flood Warning is now in effect until tomorrow morning...
The Flood Warning continues for
the Brandywine Creek At Chadds Ford.
* Until Friday morning.
* At 2:30 AM EDT Thursday the stage was 19.0 feet.
* Flood stage is 9.0 feet.
* Major flooding is occurring and major flooding is forecast. This
approaches the flood of record.
* Recent Activity...The maximum river stage in the 24 hours ending
at 2:30 AM EDT Thursday was 19.0 feet.
* Forecast...The river is expected to rise to a crest of 21.0 feet
early this morning. It will then fall below flood stage just after
midnight tonight.
* Impact...At 8.0 feet, Open adjacent land next to the creek floods.
* Impact...At 10.0 feet, The intersections of Creek Road and Route
926 near Pocopson floods upstream of Chadds Ford.
* Impact...At 11.8 feet, Brandywine River Museum begins to take on
water. Route 1 also takes on water.
* Impact...At 12.0 feet, Businesses upstream of the gage begin to
flood.
* Impact...At 13.0 feet, Residential evacuations begin at this
stage. Route 1 and Route 100 are closed. Fairville Road is also
closed.
* Impact...At 14.0 feet, Businesses along Route 1 and Creek Road
take on water.
* Flood History...This crest compares to a previous crest of 17.2
feet on 09/17/1999.
&&
Fld Observed Forecasts (2 am EDT)
Location Stg Stg Day/Time Fri Sat Sun
Brandywine Creek
Chadds Ford 9.0 19.0 Thu 2 am EDT 8.6 4.4 3.3
&&
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
$$
CMS219
WGUS81 KPHI 021528
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
1128 AM EDT Thu Sep 2 2021
...The Flood Warning is extended for the following rivers in
Delaware...
Brandywine Creek At Wilmington affecting New Castle County.
...The Flood Warning continues for the following rivers in
Pennsylvania...
Brandywine Creek At Chadds Ford affecting Delaware and Chester
Counties.
For the Brandywine Creek...including Chadds Ford, Wilmington...Major
flooding is forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Additional information is available at www.weather.gov/phi.
DEC003-030330-
/O.EXT.KPHI.FL.W.0054.000000T0000Z-210903T1000Z/
/WMND1.3.ER.210902T0651Z.210902T1315Z.210903T0400Z.UU/
1128 AM EDT Thu Sep 2 2021
...The Flood Warning is now in effect until tomorrow morning...
The Flood Warning continues for
the Brandywine Creek At Wilmington.
* Until Friday morning.
* At 11:15 AM EDT Thursday the stage was 22.1 feet.
* Flood stage is 16.5 feet.
* Major flooding is occurring and major flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 11:15 AM EDT Thursday was 23.1 feet.
* Forecast...The river is expected to rise to a crest of 22.3 feet
this afternoon. It will then fall below flood stage just after
midnight tonight.
* Impact...At 14.5 feet, Minor flooding begins along the creek in
the Brandywine State Park.
* Impact...At 16.5 feet, North Park Drive, west of North Market
Street, in Brandywine State Park is subject to flooding and
closures.
* Impact...At 17.0 feet, Some flooding begins in the historic
Breck's Mill area in Montchanin.
* Impact...At 18.0 feet, Ramsey Road is subject to closures between
Del. 92 and Beaver Dam Road as the Brandywine backs up into Ransey
Run.
* Impact...At 19.0 feet, Serious flooding at the Dupont Experimental
Station. Historic Breck's Mill area in Montchanin experiences
significant flooding. Hagley Creek Road as well as Barley Mill
Road are flooded. The Post Office is flooded as is the museum and
library.
* Impact...At 19.5 feet, Widespread flooding occurs along the creek
in Wilmington. Rockland Road from Black Gates Road to Country Club
Drive is flooded as is Rockland Road from Adams Drive to Mt.
Lebanon Road. The 1300 block of East 12th Street is flooded
impacting access to I-495.
* Flood History...This crest compares to a previous crest of 20.4
feet on 05/01/2014.
&&
Fld Observed Forecasts (2 pm EDT)
Location Stg Stg Day/Time Fri Sat Sun
Brandywine Creek
Wilmington 16.5 22.1 Thu 11 am ED 14.4 13.0 MSG
&&
LAT...LON 3982 7553 3975 7549 3969 7552 3979 7560
$$
PAC029-045-030330-
/O.EXT.KPHI.FL.W.0053.000000T0000Z-210903T1000Z/
/CDFP1.3.ER.210902T0050Z.210902T0900Z.210903T0400Z.NR/
1128 AM EDT Thu Sep 2 2021
...The Flood Warning is now in effect until tomorrow morning...
The Flood Warning continues for
the Brandywine Creek At Chadds Ford.
* Until Friday morning.
* At 10:30 AM EDT Thursday the stage was 16.4 feet.
* Flood stage is 9.0 feet.
* Major flooding is occurring and major flooding is forecast. This
approaches the flood of record.
* Recent Activity...The maximum river stage in the 24 hours ending
at 10:30 AM EDT Thursday was 21.0 feet.
* Forecast...The river is expected to fall below flood stage just
after midnight tonight and continue falling to 3.3 feet Sunday
morning.
* Impact...At 8.0 feet, Open adjacent land next to the creek floods.
* Impact...At 10.0 feet, The intersections of Creek Road and Route
926 near Pocopson floods upstream of Chadds Ford.
* Impact...At 11.8 feet, Brandywine River Museum begins to take on
water. Route 1 also takes on water.
* Impact...At 12.0 feet, Businesses upstream of the gage begin to
flood.
* Impact...At 13.0 feet, Residential evacuations begin at this
stage. Route 1 and Route 100 are closed. Fairville Road is also
closed.
* Impact...At 14.0 feet, Businesses along Route 1 and Creek Road
take on water.
* Flood History...This crest compares to a previous crest of 16.6
feet on 06/22/1972.
&&
Fld Observed Forecasts (2 pm EDT)
Location Stg Stg Day/Time Fri Sat Sun
Brandywine Creek
Chadds Ford 9.0 16.4 Thu 10 am ED 6.4 3.7 MSG
&&
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
$$
Kruzdlo466
WGUS81 KPHI 022028
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
428 PM EDT Thu Sep 2 2021
...The Flood Warning continues for the following rivers in
Delaware...Pennsylvania...
Brandywine Creek At Wilmington affecting New Castle County.
Brandywine Creek At Chadds Ford affecting Delaware and Chester
Counties.
For the Brandywine Creek...including Chadds Ford, Wilmington...Minor
flooding is forecast.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around...don't drown when encountering flooded roads. Most
flood deaths occur in vehicles.
Additional information is available at www.weather.gov/phi.
DEC003-030800-
/O.EXT.KPHI.FL.W.0054.000000T0000Z-210903T0800Z/
/WMND1.3.ER.210902T0651Z.210902T1315Z.210903T0200Z.UU/
428 PM EDT Thu Sep 2 2021
...The Flood Warning is now in effect until late tonight...
The Flood Warning continues for
the Brandywine Creek At Wilmington.
* Until late tonight.
* At 4:15 PM EDT Thursday the stage was 18.5 feet.
* Flood stage is 16.5 feet.
* Moderate flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending
at 4:15 PM EDT Thursday was 23.1 feet.
* Forecast...The river is expected to fall below flood stage late
this evening and continue falling to 12.7 feet early Sunday
afternoon.
* Impact...At 14.5 feet, Minor flooding begins along the creek in
the Brandywine State Park.
* Impact...At 16.5 feet, North Park Drive, west of North Market
Street, in Brandywine State Park is subject to flooding and
closures.
* Impact...At 17.0 feet, Some flooding begins in the historic
Breck's Mill area in Montchanin.
* Impact...At 18.0 feet, Ramsey Road is subject to closures between
Del. 92 and Beaver Dam Road as the Brandywine backs up into Ransey
Run.
* Impact...At 19.0 feet, Serious flooding at the Dupont Experimental
Station. Historic Breck's Mill area in Montchanin experiences
significant flooding. Hagley Creek Road as well as Barley Mill
Road are flooded. The Post Office is flooded as is the museum and
library.
* Flood History...This crest compares to a previous crest of 18.6
feet on 08/05/2020.
&&
Fld Observed Forecasts (2 pm EDT)
Location Stg Stg Day/Time Fri Sat Sun
Brandywine Creek
Wilmington 16.5 18.5 Thu 4 pm EDT 14.4 13.0 12.7
&&
LAT...LON 3982 7553 3975 7549 3969 7552 3979 7560
$$
PAC029-045-030600-
/O.EXT.KPHI.FL.W.0053.000000T0000Z-210903T0600Z/
/CDFP1.3.ER.210902T0050Z.210902T0900Z.210903T0000Z.NR/
428 PM EDT Thu Sep 2 2021
...The Flood Warning is now in effect until just after midnight
tonight...
The Flood Warning continues for
the Brandywine Creek At Chadds Ford.
* Until late tonight.
* At 3:30 PM EDT Thursday the stage was 11.4 feet.
* Flood stage is 9.0 feet.
* Moderate flooding is occurring and minor flooding is forecast.
This approaches the flood of record.
* Recent Activity...The maximum river stage in the 24 hours ending
at 3:30 PM EDT Thursday was 21.0 feet.
* Forecast...The river is expected to fall below flood stage this
evening and continue falling to 3.2 feet early Sunday afternoon.
* Impact...At 8.0 feet, Open adjacent land next to the creek floods.
* Impact...At 10.0 feet, The intersections of Creek Road and Route
926 near Pocopson floods upstream of Chadds Ford.
* Impact...At 11.8 feet, Brandywine River Museum begins to take on
water. Route 1 also takes on water.
* Impact...At 12.0 feet, Businesses upstream of the gage begin to
flood.
* Flood History...This crest compares to a previous crest of 11.6
feet on 12/05/1993.
&&
Fld Observed Forecasts (2 pm EDT)
Location Stg Stg Day/Time Fri Sat Sun
Brandywine Creek
Chadds Ford 9.0 11.4 Thu 3 pm EDT 5.9 3.7 3.2
&&
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
$$
Kruzdlo184
WGUS81 KPHI 030103
FLSPHI
Flood Statement
National Weather Service Mount Holly NJ
903 PM EDT Thu Sep 2 2021
...The Flood Warning is cancelled for the following rivers in
Pennsylvania...
Brandywine Creek At Chadds Ford affecting Delaware and Chester
Counties.
PAC029-045-030215-
/O.CAN.KPHI.FL.W.0053.000000T0000Z-210903T0103Z/
/CDFP1.3.ER.210902T0050Z.210902T0900Z.210902T2329Z.NR/
903 PM EDT Thu Sep 2 2021
...The Flood Warning for the Brandywine Creek At Chadds Ford has
been cancelled...
The Flood Warning is cancelled for
the Brandywine Creek At Chadds Ford.
* At 8:30 PM EDT Thursday the stage was 7.9 feet.
* Flood stage is 9.0 feet.
* Forecast...The river level will continue to fall overnight.
&&
Fld Observed Forecasts (8 pm EDT)
Location Stg Stg Day/Time Fri Sat Sun
Brandywine Creek
Chadds Ford 9.0 7.9 Thu 8 pm EDT 5.2 3.5 MSG
&&
LAT...LON 3993 7561 3982 7553 3979 7560 3991 7567
$$
POThe office that day
Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 6:19 AM EDT | Areal Flood Advisory | PHI | Chester, Delaware | 116 min |
| Sep 1, 6:49 AM EDT | Flash Flood Warning | PHI | Chester, Delaware, Philadelphia | 86 min |
| Sep 1, 11:24 AM EDT | Areal Flood Advisory | PHI | Berks, Carbon, Lehigh, Monroe, Northampton | 3 hr |
| Sep 1, 12:07 PM EDT | Flash Flood Warning | PHI | Carbon, Monroe | 4 hr |
| Sep 1, 1:29 PM EDT | Flash Flood Warning | PHI | Berks, Lehigh | 6 hr |
| Sep 1, 2:53 PM EDT | Flash Flood Warning | PHI | Berks, Chester, Delaware, Montgomery | 9 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Montgomery | 36 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Chester, Montgomery, Philadelphia | 43 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Montgomery, Philadelphia | 41 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Philadelphia | 39 hr |
| Sep 1, 3:55 PM EDT | River Flood Warning | PHI | Berks | 24 hr |
| Sep 1, 4:02 PM EDT | River Flood Warning | PHI | Monroe | 24 hr |
| Sep 1, 4:04 PM EDT | Areal Flood Warning | PHI | Carbon, Monroe, Northampton | 24 hr |
| Sep 1, 4:10 PM EDT | River Flood Warning | PHI | Monroe | 19 hr |
| Sep 1, 4:12 PM EDT | Flash Flood Warning | PHI | Berks, Bucks, Lehigh, Montgomery, Northampton | 7 hr |
| Sep 1, 4:12 PM EDT | River Flood Warning | PHI | Lehigh, Northampton | 25 hr |
| Sep 1, 4:12 PM EDT | River Flood Warning | PHI | Lehigh, Northampton | 24 hr |
| Sep 1, 4:12 PM EDT | River Flood Warning | PHI | Carbon | 15 hr |
| Sep 1, 4:13 PM EDT | Tornado Warning | PHI | Chester | 32 min |
| Sep 1, 4:20 PM EDT | River Flood Warning | PHI | Montgomery | 22 hr |
| Sep 1, 4:21 PM EDT | River Flood Warning | PHI | Bucks | 29 hr |
| Sep 1, 4:42 PM EDT | Flash Flood Warning | PHI | Chester, Delaware, Montgomery | 6 hr |
| Sep 1, 5:07 PM EDT | River Flood Warning | PHI | Chester | 17 hr |
| Sep 1, 5:13 PM EDT | Severe Thunderstorm Warning | PHI | Bucks, Chester, Delaware, Montgomery, Philadelphia | 47 min |
| Sep 1, 5:15 PM EDT | Tornado Warning | PHI | Delaware, Montgomery, Philadelphia | 30 min |
| Sep 1, 5:26 PM EDT | Flash Flood Warning | PHI | Bucks, Delaware, Montgomery, Philadelphia | 9 hr |
| Sep 1, 5:34 PM EDT | Tornado Warning | PHI | Bucks, Montgomery, Philadelphia | 26 min |
| Sep 1, 5:42 PM EDT | Flash Flood Warning | PHI | Bucks | 10 hr |
| Sep 1, 5:57 PM EDT | Tornado Warning | PHI | Bucks | 33 min |
| Sep 1, 6:08 PM EDT | Flash Flood Warning | PHI | Monroe, Northampton | 6 hr |
| Sep 1, 6:20 PM EDT | Tornado Warning | PHI | Bucks | 40 min |
| Sep 1, 6:22 PM EDT | Tornado Warning | PHI | Philadelphia | 23 min |
| Sep 1, 6:42 PM EDT | Tornado Warning | PHI | Bucks, Philadelphia | 33 min |
| Sep 1, 6:59 PM EDT | Severe Thunderstorm Warning | PHI | Bucks | 61 min |
| Sep 1, 7:04 PM EDT | Tornado Warning | PHI | Bucks | 26 min |
| Sep 1, 7:05 PM EDT | Flash Flood Warning | PHI | Bucks | 8 hr |
| Sep 1, 7:22 PM EDT | Tornado Warning | PHI | Bucks | 11 min |
| Sep 1, 7:23 PM EDT | Areal Flood Warning | PHI | Berks, Lehigh | 14 hr |
| Sep 1, 7:31 PM EDT | Flash Flood Warning | PHI | Bucks | 4 hr |
| Sep 1, 7:53 PM EDT | River Flood Warning | PHI | Delaware | 13 hr |
Nearby
River Flood Warnings in Pennsylvania, 2021Every river flood warning in 2021
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.