Alert archive / Delaware / River Flood Warnings in 2021

River Flood Warning 55, NWS Philadelphia/Mount Holly

September 1, 2021New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Sep 1, 2021, 7:44 PM EDT for New Castle County, Delaware. It was in force for 11 hr.

The area

The outline as issued.

The facts

Issued: Sep 1, 2021, 7:44 PM EDT (23:44 UTC)
Expired: Sep 2, 2021, 7:01 AM EDT
In force: 11 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: Minor

County New Castle County, DE

The radar

The Dover AFB radar (KDOX), 102 km from the middle of the area, began a volume at 23:46 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 Red Clay Creek at Wooddale (RCCD1). The gauge peaked at 9.20 ft at Sep 2, 2021, 4:00 AM EDT.

Action stage: 5.5 ft
Minor stage: 7 ft
Moderate stage: 8.5 ft
Major stage: 10 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01480000, 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.

820 
WGUS41 KPHI 012344
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
744 PM EDT Wed Sep 1 2021

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

  Red Clay Creek At Wooddale affecting New Castle County.

For the Red Clay Creek...including Wooddale...Minor flooding is 
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

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.


DEC003-020445-
/O.NEW.KPHI.FL.W.0055.210901T2344Z-210902T0445Z/
/RCCD1.1.ER.210901T2330Z.210902T0100Z.210902T0144Z.NO/
744 PM EDT Wed Sep 1 2021

The National Weather Service in Mount Holly has issued a

* Flood Warning for
  the Red Clay Creek At Wooddale.
* From this evening to late tonight.
* At 7:31 PM EDT Wednesday the stage was 7.0 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 7:31 PM EDT Wednesday was 7.0 feet.
* Forecast...The river is expected to rise to a crest of 8.2 feet 
  late this evening. It will then fall below flood stage late this 
  evening.
* Impact...At 5.5 feet, Flooding begins in adjacent open fields.
* Impact...At 7.5 feet, Barley Mill Road begins to flood. Brandywine 
  Springs Park floods.
* Impact...At 8.5 feet, Flooding begins near Old Capital Trail and 
  Newport Road.
* Flood History...This crest compares to a previous crest of 8.0 
  feet on 12/25/2020.

&&


              Fld   Observed           Forecasts (8 pm EDT)     
Location      Stg   Stg   Day/Time     Thu   Fri   Sat          

Red Clay Creek
Wooddale      7.0   7.0   Wed 7 pm EDT 3.4   MSG   MSG          





&&

LAT...LON 3976 7568 3977 7559 3968 7557 3968 7565

$$

NC

4 follow-up statements

682 
WGUS81 KPHI 020426
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
1226 AM EDT Thu Sep 2 2021

...The Flood Warning is extended for the following rivers in 
Delaware...

  Red Clay Creek At Wooddale affecting New Castle County.

For the Red Clay Creek...including Wooddale...Minor flooding is 
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Additional information is available at www.weather.gov/phi.


DEC003-021230-
/O.EXT.KPHI.FL.W.0055.000000T0000Z-210902T1225Z/
/RCCD1.1.ER.210901T2330Z.210902T0031Z.210902T0625Z.NO/
1226 AM EDT Thu Sep 2 2021

...The Flood Warning is now in effect until this morning...

The Flood Warning continues for
  the Red Clay Creek At Wooddale.
* Until this morning.
* At 11:45 PM EDT Wednesday the stage was 7.0 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 11:45 PM EDT Wednesday was 7.5 feet.
* Forecast...The river is expected to rise to a crest of 7.3 feet 
  early this morning. It will then fall below flood stage early this 
  morning.
* Impact...At 5.5 feet, Flooding begins in adjacent open fields.
* Impact...At 7.5 feet, Barley Mill Road begins to flood. Brandywine 
  Springs Park floods.
* Flood History...This crest compares to a previous crest of 7.3 
  feet on 03/11/2011.

&&


              Fld   Observed           Forecasts (12 am EDT)    
Location      Stg   Stg   Day/Time     Fri   Sat   Sun          

Red Clay Creek
Wooddale      7.0   7.0   Wed 11 pm ED 3.3   MSG   MSG          





&&

LAT...LON 3976 7568 3977 7559 3968 7557 3968 7565

$$

Meola

710 
WGUS81 KPHI 020628
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
228 AM EDT Thu Sep 2 2021

...The Flood Warning is extended for the following rivers in 
Delaware...

  Red Clay Creek At Wooddale affecting New Castle County.

For the Red Clay Creek...including Wooddale...Minor flooding is 
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Additional information is available at www.weather.gov/phi.


DEC003-021500-
/O.EXT.KPHI.FL.W.0055.000000T0000Z-210902T1453Z/
/RCCD1.1.ER.210901T2330Z.210902T0700Z.210902T0853Z.NO/
228 AM EDT Thu Sep 2 2021

...The Flood Warning is now in effect until late this morning...

The Flood Warning continues for
  the Red Clay Creek At Wooddale.
* Until this morning.
* At 1:45 AM EDT Thursday the stage was 7.9 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 1:45 AM EDT Thursday was 7.9 feet.
* Forecast...The river is expected to rise to 8.5 feet early this 
  morning. The river is then expected to fall below flood stage this 
  morning.
* Impact...At 5.5 feet, Flooding begins in adjacent open fields.
* Impact...At 7.5 feet, Barley Mill Road begins to flood. Brandywine 
  Springs Park floods.
* Impact...At 8.5 feet, Flooding begins near Old Capital Trail and 
  Newport Road.
* Flood History...This crest compares to a previous crest of 8.4 
  feet on 03/28/2005.

&&


              Fld   Observed           Forecasts (2 am EDT)     
Location      Stg   Stg   Day/Time     Fri   Sat   Sun          

Red Clay Creek
Wooddale      7.0   7.9   Thu 1 am EDT 3.1   MSG   MSG          





&&

LAT...LON 3976 7568 3977 7559 3968 7557 3968 7565

$$

Meola

001 
WGUS41 KPHI 020655
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
255 AM EDT Thu Sep 2 2021

...Forecast flooding changed from Minor to Moderate severity and 
increased in duration for the following rivers in Delaware...

  Red Clay Creek At Wooddale affecting New Castle County.

For the Red Clay Creek...including Wooddale...Moderate flooding is 
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

Turn around...don't drown when encountering flooded roads. Most 
flood deaths occur in vehicles.

Additional information is available at www.weather.gov/phi.


DEC003-021645-
/O.EXT.KPHI.FL.W.0055.000000T0000Z-210902T1643Z/
/RCCD1.2.ER.210901T2330Z.210902T0800Z.210902T1043Z.NO/
255 AM EDT Thu Sep 2 2021

...Forecast flooding increased from Minor to Moderate severity and 
increased in duration until this afternoon...

The Flood Warning continues for
  the Red Clay Creek At Wooddale.
* Until this afternoon.
* At 2:46 AM EDT Thursday the stage was 8.9 feet.
* Flood stage is 7.0 feet.
* Moderate flooding is occurring and moderate flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 2:46 AM EDT Thursday was 8.9 feet.
* Forecast...The river is expected to rise to a crest of 9.8 feet 
  early this morning. It will then fall below flood stage this 
  morning.
* Impact...At 5.5 feet, Flooding begins in adjacent open fields.
* Impact...At 7.5 feet, Barley Mill Road begins to flood. Brandywine 
  Springs Park floods.
* Impact...At 8.5 feet, Flooding begins near Old Capital Trail and 
  Newport Road.
* Impact...At 10.0 feet, West Rolling Mill Road floods. Creek Road 
  between Pyles Ford Road and Way Road is closed due to flooding.
* Flood History...This crest compares to a previous crest of 9.9 
  feet on 09/12/1960.

&&


              Fld   Observed           Forecasts (3 am EDT)     
Location      Stg   Stg   Day/Time     Fri   Sat   Sun          

Red Clay Creek
Wooddale      7.0   8.9   Thu 2 am EDT 2.9   MSG   MSG          





&&

LAT...LON 3976 7568 3977 7559 3968 7557 3968 7565

$$

Meola

617 
WGUS81 KPHI 021101
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
701 AM EDT Thu Sep 2 2021

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

  Red Clay Creek At Wooddale affecting New Castle County.

DEC003-021215-
/O.CAN.KPHI.FL.W.0055.000000T0000Z-210902T1101Z/
/RCCD1.2.ER.210901T2330Z.210902T0815Z.210902T0932Z.NO/
701 AM EDT Thu Sep 2 2021

...The Flood Warning for the Red Clay Creek At Wooddale has been 
cancelled...

The Flood Warning is cancelled for
  the Red Clay Creek At Wooddale.
* At 6:46 AM EDT Thursday the stage was 4.7 feet.
* Flood stage is 7.0 feet.
* Forecast...The river will continue to fall today.

&&


              Fld   Observed           Forecasts (7 am EDT)     
Location      Stg   Stg   Day/Time     Fri   Sat   Sun          

Red Clay Creek
Wooddale      7.0   4.7   Thu 6 am EDT 2.9   MSG   MSG          





&&

LAT...LON 3976 7568 3977 7559 3968 7557 3968 7565

$$

Kruzdlo

The 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	New Castle	116 min
Sep 1, 6:49 AM EDT	Flash Flood Warning	PHI	New Castle	86 min
Sep 1, 8:03 AM EDT	River Flood Warning	PHI	New Castle	4 hr
Sep 1, 2:53 PM EDT	Flash Flood Warning	PHI	New Castle	9 hr
Sep 1, 4:59 PM EDT	Tornado Warning	PHI	Kent, Sussex	46 min
Sep 1, 5:01 PM EDT	Tornado Warning	PHI	Kent, New Castle	44 min
Sep 1, 5:16 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	44 min
Sep 1, 5:26 PM EDT	Flash Flood Warning	PHI	New Castle	9 hr
Sep 1, 5:35 PM EDT	Tornado Warning	PHI	Kent, New Castle	25 min
Sep 1, 6:03 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	42 min
Sep 1, 6:08 PM EDT	River Flood Warning	PHI	New Castle	18 hr
Sep 1, 6:15 PM EDT	River Flood Warning	PHI	New Castle	9 hr
Sep 1, 6:24 PM EDT	Tornado Warning	PHI	New Castle	16 min
Sep 1, 6:38 PM EDT	River Flood Warning	PHI	New Castle	28 hr
Sep 1, 6:57 PM EDT	Severe Thunderstorm Warning	PHI	Kent, Sussex	63 min

Nearby

River Flood Warnings in Delaware, 2021 Every 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.