Alert archive / Delaware / River Flood Warnings in 2020

River Flood Warning 36, NWS Philadelphia/Mount Holly

November 11, 2020New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Nov 11, 2020, 9:03 PM EST for New Castle County, Delaware. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Nov 11, 2020, 9:03 PM EST (02:03 UTC)
Expired: Nov 12, 2020, 3:09 AM EST
In force: 6 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), 95 km from the middle of the area, began a volume at 02:05 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 Christina River at Coochs Bridge (CHBD1). The gauge peaked at 12.52 ft at Nov 12, 2020, 12:00 AM EST.

Action stage: 9 ft
Minor stage: 11 ft
Moderate stage: 12 ft
Major stage: 13 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01478000, 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.

484 
WGUS41 KPHI 120203
FLWPHI

BULLETIN - EAS ACTIVATION REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
903 PM EST Wed Nov 11 2020

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

  Christina River At Coochs Bridge affecting New Castle County.

For the Christina River...including Coochs Bridge...Minor flooding 
is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

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


DEC003-120915-
/O.NEW.KPHI.FL.W.0036.201112T0205Z-201112T0913Z/
/CHBD1.1.ER.201112T0205Z.201112T0300Z.201112T0312Z.NO/
903 PM EST Wed Nov 11 2020

The National Weather Service in Mount Holly has issued a

* Flood Warning for
  the Christina River At Coochs Bridge.
* Until late tonight.
* At 8:47 PM EST Wednesday the stage was 10.9 feet.
* Flood stage is 11.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  this evening to a crest of 11.2 feet late this evening. It will 
  then fall below flood stage late this evening.
* Impact at 9.0 feet...Flooding begins in fields and floodplain 
  adjacent to the river. Impact at 11.0 feet...Flooding begins in 
  the town of Christiana. East Main Street (Del 7) begins to flood 
  as does Water Street. Meadow Road near New Castle Airport is 
  subject to flooding. Barksdale Road near Casho Mill Road is also 
  subject to flooding as are residential backyards. Impact at 11.5 
  feet...Portions of Duross Heights near New Castle Airport begin to 
  flood including Don Avenue. Airport Road at the New Castle Airport 
  begins to flood as the Christina River backs up the Nonesuch 
  Creek. Walther Road in the Bear area also floods. Flooding also 
  occurs around Smalley's Pond Dam in Christiana.
* Flood History...This crest compares to a previous crest of 11.3 
  feet on 03/22/1999.

&&


Stream          Fld   Observed        Fcsts (9 pm)        Crest
Location        Stg   Stg Day/Time    Thu  Fri        Stg Time Date

Christina River
Coochs Bridge   11.0  10.9 Wed 8 pm   6.0  MSG        11.2 10pm 11/11





&&

LAT...LON 3964 7578 3970 7578 3965 7570 3968 7565
      3968 7557 3959 7569

$$

Iovino

4 follow-up statements

085 
WGUS41 KPHI 120237
FLWPHI

BULLETIN - EAS ACTIVATION REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
937 PM EST Wed Nov 11 2020

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

  Christina River At Coochs Bridge affecting New Castle County.

For the Christina River...including Coochs Bridge...Minor flooding 
is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

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


DEC003-121015-
/O.EXT.KPHI.FL.W.0036.000000T0000Z-201112T1003Z/
/CHBD1.1.ER.201112T0151Z.201112T0300Z.201112T0403Z.NO/
937 PM EST Wed Nov 11 2020

...The Flood Warning is now in effect until late tonight...

The Flood Warning continues for
  the Christina River At Coochs Bridge.
* Until late tonight.
* At 9:15 PM EST Wednesday the stage was 11.4 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 9:15 PM EST Wednesday was 11.4 feet.
* Forecast...The river is expected to rise to a crest of 11.8 feet 
  late this evening. It will then fall below flood stage late this 
  evening.
* Impact at 11.0 feet...Flooding begins in the town of Christiana. 
  East Main Street (Del 7) begins to flood as does Water Street. 
  Meadow Road near New Castle Airport is subject to flooding. 
  Barksdale Road near Casho Mill Road is also subject to flooding as 
  are residential backyards. Impact at 11.5 feet...Portions of 
  Duross Heights near New Castle Airport begin to flood including 
  Don Avenue. Airport Road at the New Castle Airport begins to flood 
  as the Christina River backs up the Nonesuch Creek. Walther Road 
  in the Bear area also floods. Flooding also occurs around 
  Smalley's Pond Dam in Christiana.
* Flood History...This crest compares to a previous crest of 11.8 
  feet on 09/07/2011.

&&


Stream          Fld   Observed        Fcsts (10 pm)       Crest
Location        Stg   Stg Day/Time    Thu  Fri        Stg Time Date

Christina River
Coochs Bridge   11.0  11.4 Wed 9 pm   6.0  MSG        11.8 10pm 11/11





&&

LAT...LON 3964 7578 3970 7578 3965 7570 3968 7565
      3968 7557 3959 7569

$$

Iovino

649 
WGUS81 KPHI 120405
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
1105 PM EST Wed Nov 11 2020

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

  Christina River At Coochs Bridge affecting New Castle County.

For the Christina River...including Coochs Bridge...Moderate 
flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

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


DEC003-121145-
/O.EXT.KPHI.FL.W.0036.000000T0000Z-201112T1138Z/
/CHBD1.2.ER.201112T0151Z.201112T0346Z.201112T0538Z.NO/
1105 PM EST Wed Nov 11 2020

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

The Flood Warning continues for
  the Christina River At Coochs Bridge.
* Until Thursday morning.
* At 10:46 PM EST Wednesday the stage was 12.2 feet.
* Flood stage is 11.0 feet.
* Moderate flooding is occurring and moderate flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 10:46 PM EST Wednesday was 12.2 feet.
* Forecast...The river is expected to fall below flood stage just 
  after midnight tonight and continue falling to 6.0 feet Friday 
  morning.
* Impact at 9.0 feet...Flooding begins in fields and floodplain 
  adjacent to the river. Impact at 11.0 feet...Flooding begins in 
  the town of Christiana. East Main Street (Del 7) begins to flood 
  as does Water Street. Meadow Road near New Castle Airport is 
  subject to flooding. Barksdale Road near Casho Mill Road is also 
  subject to flooding as are residential backyards. Impact at 11.5 
  feet...Portions of Duross Heights near New Castle Airport begin to 
  flood including Don Avenue. Airport Road at the New Castle Airport 
  begins to flood as the Christina River backs up the Nonesuch 
  Creek. Walther Road in the Bear area also floods. Flooding also 
  occurs around Smalley's Pond Dam in Christiana. Impact at 12.0 
  feet...Significant flooding occurs on Meadow Road in Christiana. 
  Roads are closed. Homes are flooded. Salem Church Road and Reybold 
  Road floods in Christiana also flood and are subject to closures. 
  Residential backyards can flood in this area. Flooding also occurs 
  in Newark on West Chestnut Hill Road and South College Avenue. 
  Impact at 12.5 feet...Evacuations are possible in Duross Heights. 
  Airport Road at the New Castle Airport floods is closed. 
  Businesses are flooded. Flooding increases in Newark. Flooding 
  also increases on Barksdale Road and can extend onto Casho Mill 
  Road. Businesses on South College Avenue take on water. Impact at 
  13.0 feet...Flooding increases. Evacuations also increase in the 
  towns of Newark and Christiana. Roads become impassable.
* Flood History...This crest compares to a previous crest of 12.2 
  feet on 12/17/2000.

&&


Stream          Fld   Observed        Fcsts (11 pm)       Crest
Location        Stg   Stg Day/Time    Thu  Fri        Stg Time Date

Christina River
Coochs Bridge   11.0  12.2 Wed 10 p   6.0  MSG        12.1 12am 11/12





&&

LAT...LON 3964 7578 3970 7578 3965 7570 3968 7565
      3968 7557 3959 7569

$$

SFJ

625 
WGUS81 KPHI 120628
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
128 AM EST Thu Nov 12 2020

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

  Christina River At Coochs Bridge affecting New Castle County.

For the Christina River...including Coochs Bridge...Minor flooding 
is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

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


DEC003-121315-
/O.EXT.KPHI.FL.W.0036.000000T0000Z-201112T1306Z/
/CHBD1.1.ER.201112T0151Z.201112T0500Z.201112T0706Z.NO/
128 AM EST Thu Nov 12 2020

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

The Flood Warning continues for
  the Christina River At Coochs Bridge.
* Until this morning.
* At 1:15 AM EST Thursday the stage was 11.7 feet.
* Flood stage is 11.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 1:15 AM EST Thursday was 12.5 feet.
* Forecast...The river is expected to fall below flood stage early 
  this morning and continue falling to 6.0 feet tomorrow morning.
* Impact at 11.5 feet...Portions of Duross Heights near New Castle 
  Airport begin to flood including Don Avenue. Airport Road at the 
  New Castle Airport begins to flood as the Christina River backs up 
  the Nonesuch Creek. Walther Road in the Bear area also floods. 
  Flooding also occurs around Smalley's Pond Dam in Christiana.

&&


Stream          Fld   Observed        Fcsts (1 am)        Crest
Location        Stg   Stg Day/Time    Fri  Sat        Stg Time Date

Christina River
Coochs Bridge   11.0  11.7 Thu 1 am   6.0  MSG        Crested  





&&

LAT...LON 3964 7578 3970 7578 3965 7570 3968 7565
      3968 7557 3959 7569

$$

SFJ

193 
WGUS81 KPHI 120809
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
309 AM EST Thu Nov 12 2020

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

  Christina River At Coochs Bridge affecting New Castle County.

DEC003-120915-
/O.CAN.KPHI.FL.W.0036.000000T0000Z-201112T0809Z/
/CHBD1.1.ER.700119T1352Z.700119T1352Z.700119T1352Z.NO/
309 AM EST Thu Nov 12 2020

...The Flood Warning for the Christina River At Coochs Bridge has 
been cancelled...

The Flood Warning is cancelled for
  the Christina River At Coochs Bridge.
* At 2:46 AM EST Thursday the stage was 9.5 feet.
* Flood stage is 11.0 feet.
* Although additional light rain is possible, the heaviest rain has 
  ended so the river is expected to continue to fall.
* Forecast...The river is expected to fall to 6.0 feet tomorrow 
  morning.

&&


Stream          Fld   Observed        Fcsts (3 am)        Crest
Location        Stg   Stg Day/Time    Fri  Sat        Stg Time Date

Christina River
Coochs Bridge   11.0  9.5  Thu 2 am   6.0  MSG        Crested   





&&

LAT...LON 3964 7578 3970 7578 3965 7570 3968 7565
      3968 7557 3959 7569

$$

SFJ

The office that day

Everything else NWS Philadelphia/Mount Holly issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 11, 8:32 PM EST	River Flood Warning	PHI	New Castle	56 min
Nov 11, 10:54 PM EST	Areal Flood Advisory	PHI	Sussex	3 hr
Nov 12, 1:43 AM EST	Areal Flood Advisory	PHI	Kent, New Castle	2 hr
Nov 12, 4:16 AM EST	Areal Flood Advisory	PHI	Sussex	110 min
Nov 12, 6:06 AM EST	Areal Flood Warning	PHI	Sussex	4 hr
Nov 12, 10:15 AM EST	Areal Flood Advisory	PHI	Sussex	5 hr

Nearby

River Flood Warnings in Delaware, 2020 Every river flood warning in 2020

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.