River Flood Warning 10, NWS Philadelphia/Mount Holly

Issued

Aug 19, 2021, 12:44 AM EDT (04:44 UTC)

Expired

Aug 19, 2021, 5:49 AM EDT

In force

5 hr

Issued by

NWS Philadelphia/Mount Holly

Area

Storm-based polygon

Flood severity

Moderate

County Chester County, PA

The Philadelphia radar (KDIX), 108 km from the middle of the area, began a volume at 04:48 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.

Written for the forecast point East Branch Brandywine Creek below Downingtown (DWNP1). The gauge peaked at 7.85 ft at Aug 19, 2021, 2:00 AM EDT.

Action stage

6 ft

Minor stage

7 ft

Moderate stage

9 ft

Major stage

11 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01480870, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

637 
WGUS41 KPHI 190444
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
1244 AM EDT Thu Aug 19 2021

...The National Weather Service in Mount Holly NJ has issued a Flood 
Warning for the following rivers in Pennsylvania...

  East Branch Brandywine Creek Below Downingtown affecting Chester 
  County.

For the Brandywine Creek...including Downingtown, 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.


PAC029-191645-
/O.NEW.KPHI.FL.W.0010.210819T0444Z-210819T1730Z/
/DWNP1.2.ER.210819T0440Z.210819T0700Z.210819T1130Z.NO/
1244 AM EDT Thu Aug 19 2021

The National Weather Service in Mount Holly has issued a

* Flood Warning for
  the East Branch Brandywine Creek Below Downingtown.
* From early this morning to this afternoon.
* At 12:31 AM EDT Thursday the stage was 6.6 feet.
* Flood stage is 7.0 feet.
* Moderate flooding is forecast.
* Forecast...The river is expected to rise to a crest of 9.9 feet 
  early this morning. It will then fall below flood stage this 
  morning.
* Impact...At 6.0 feet, Open adjacent land next to the creek floods.
* Impact...At 8.0 feet, Dowlin Forge Road begins to flood.
* Impact...At 9.0 feet, High water on the Brandywine sends backwater 
  up Beaver Creek. Beaver Creek floods inundating parks and the 
  Downingtown Little League fields.
* Flood History...This crest compares to a previous crest of 9.9 
  feet on 03/09/1995.

&&


  Fld   Observed           Forecasts (1 am EDT)
Location                    Stg   Stg   Day/Time     Fri   Sat   Sun

East Branch Brandywine Creek
Downingtown                 7.0   6.6   Thu 12 am ED 2.3   MSG   MSG





&&

LAT...LON 4002 7567 3993 7561 3991 7567 4001 7574

$$

JEO

889 
WGUS81 KPHI 190823
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
423 AM EDT Thu Aug 19 2021

...The Flood Warning continues for the following rivers in 
Pennsylvania...

  East Branch Brandywine Creek Below Downingtown affecting Chester 
  County.

For the Brandywine Creek...including Downingtown, 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.


PAC029-191730-
/O.CON.KPHI.FL.W.0010.000000T0000Z-210819T1730Z/
/DWNP1.1.ER.210819T0440Z.210819T0631Z.210819T1232Z.NO/
423 AM EDT Thu Aug 19 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the East Branch Brandywine Creek Below Downingtown.
* Until this afternoon.
* At 3:45 AM EDT Thursday the stage was 7.8 feet.
* Flood stage is 7.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 3:45 AM EDT Thursday was 7.9 feet.
* Forecast...The river is expected to fall below flood stage this 
  morning and continue falling to 2.5 feet early tomorrow afternoon.
* Impact...At 6.0 feet, Open adjacent land next to the creek floods.
* Impact...At 8.0 feet, Dowlin Forge Road begins to flood.
* Flood History...This crest compares to a previous crest of 8.3 
  feet on 06/04/2003.

&&


  Fld   Observed           Forecasts (4 am EDT)
Location                    Stg   Stg   Day/Time     Fri   Sat   Sun

East Branch Brandywine Creek
Downingtown                 7.0   7.8   Thu 3 am EDT 2.4   MSG   MSG





&&

LAT...LON 4002 7567 3993 7561 3991 7567 4001 7574

$$

JEO

658 
WGUS81 KPHI 190949
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
549 AM EDT Thu Aug 19 2021

...The Flood Warning is cancelled for the following rivers in 
Pennsylvania...

  East Branch Brandywine Creek Below Downingtown affecting Chester 
  County.

PAC029-191100-
/O.CAN.KPHI.FL.W.0010.000000T0000Z-210819T0949Z/
/DWNP1.1.ER.210819T0440Z.210819T0631Z.210819T0859Z.NO/
549 AM EDT Thu Aug 19 2021

...The Flood Warning for the East Branch Brandywine Creek Below 
Downingtown has been cancelled...

The Flood Warning is cancelled for
  the East Branch Brandywine Creek Below Downingtown.
* At 5:31 AM EDT Thursday the stage was 6.5 feet.
* Flood stage is 7.0 feet.
* Forecast...The river is expected to fall to 2.4 feet early 
  tomorrow afternoon.

&&


  Fld   Observed           Forecasts (6 am EDT)
Location                    Stg   Stg   Day/Time     Fri   Sat   Sun

East Branch Brandywine Creek
Downingtown                 7.0   6.5   Thu 5 am EDT 2.3   MSG   MSG





&&

LAT...LON 4002 7567 3993 7561 3991 7567 4001 7574

$$

JEO

River Flood Warnings in Pennsylvania, 2021Every river flood warning in 2021

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.