Alert archive / Delaware / River Flood Warnings in 2023

River Flood Warning 34, NWS Philadelphia/Mount Holly

December 18, 2023New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Dec 18, 2023, 12:48 AM EST for New Castle County, Delaware. It was in force for 11 hr.

The area

The outline as issued.

The facts

Issued
Dec 18, 2023, 12:48 AM EST (05:48 UTC)
Expired
Dec 18, 2023, 12:09 PM EST
In force
11 hr
Issued by
NWS Philadelphia/Mount Holly
Area
Storm-based polygon
Flood severity
Moderate

County New Castle County, DE

The radar

The Dover AFB radar (KDOX), 95 km from the middle of the area, began a volume at 05:50 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 12.21 ft at Dec 18, 2023, 6:00 AM EST.

actionminormoderatemajor51012/1812/19
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.

643 
WGUS41 KPHI 180548
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
1248 AM EST Mon Dec 18 2023

...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...Moderate 
flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.

Please report observed flooding to local emergency services or law 
enforcement and request they pass this information to the National 
Weather Service when you can do so safely.

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

The next statement will be issued this afternoon at 100 PM EST.

&&

DEC003-181800-
/O.NEW.KPHI.FL.W.0034.231218T0548Z-231218T2212Z/
/CHBD1.2.ER.231218T0546Z.231218T0900Z.231218T1611Z.NO/
1248 AM EST Mon Dec 18 2023

...FLOOD WARNING IN EFFECT FROM EARLY THIS MORNING TO LATE THIS 
AFTERNOON...

* WHAT...Moderate flooding is forecast.

* WHERE...Christina River at Coochs Bridge.

* WHEN...From early this morning to late this afternoon.

* IMPACTS...At 9.0 feet, Flooding begins in fields and floodplain 
  adjacent to the river.
  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.
  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.
  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.
  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.
  At 13.0 feet, Flooding increases. Evacuations also increase in the 
  towns of Newark and Christiana. Roads become impassable.

* ADDITIONAL DETAILS...
  - At 12:15 AM EST Monday the stage was 9.6 feet.
  - Forecast...The river is expected to rise above flood stage
    early this morning to a crest of 12.9 feet early this
    morning. It will then fall below flood stage late this
    morning.
  - Flood stage is 11.0 feet.
  - Flood History...This crest compares to a previous crest of
    12.9 feet on 09/02/2021.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (unknown      Crest
Location        Stg   Stg Day/Time    d1   d2         Stg Time Date

Christina River
Coochs Bridge   11.0  9.6  Mon 12 a   MSG  MSG        12.9 4am 12/18


&&

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


$$

MPS
1 follow-up statement
978 
WGUS81 KPHI 181709
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
1209 PM EST Mon Dec 18 2023

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

  Christina River At Coochs Bridge affecting New Castle County.



DEC003-181815-
/O.CAN.KPHI.FL.W.0034.000000T0000Z-231218T1709Z/
/CHBD1.2.ER.231218T0546Z.231218T1130Z.231218T1504Z.NO/
1209 PM EST Mon Dec 18 2023

...FLOOD WARNING IS CANCELLED...

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

* ADDITIONAL DETAILS...
  - At 11:15 AM EST Monday the stage was 10.0 feet.
  - Forecast...The river is expected to fall to 3.4 feet this
    evening.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (unknown      Crest
Location        Stg   Stg Day/Time    d1   d2         Stg Time Date

Christina River
Coochs Bridge   11.0  10.0 Mon 11 a   MSG  MSG    Crested & falling
&&

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


$$

Kruzdlo

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 18, 1:29 AM ESTAreal Flood WarningPHIKent, Sussex11 hr
Dec 18, 2:08 AM ESTAreal Flood WarningPHINew Castle12 hr
Dec 18, 2:45 AM ESTAreal Flood WarningPHINew Castle6 hr
Dec 18, 5:22 AM ESTRiver Flood WarningPHINew Castle7 hr
Dec 18, 5:25 AM ESTRiver Flood WarningPHINew Castle8 hr
Dec 18, 6:24 AM ESTRiver Flood WarningPHINew Castle15 hr
Dec 18, 1:46 PM ESTAreal Flood WarningPHISussex13 hr
Dec 18, 4:32 PM ESTAreal Flood WarningPHIKent25 hr
Dec 18, 6:13 PM ESTCoastal Flood AdvisoryPHISussex10 hr

Nearby

River Flood Warnings in Delaware, 2023Every river flood warning in 2023

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.