Alert archive / Delaware / River Flood Warnings in 2022

River Flood Warning 25, NWS Philadelphia/Mount Holly

July 2, 2022New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Jul 2, 2022, 9:49 PM EDT for New Castle County, Delaware. It took effect at Jul 2, 2022, 10:45 PM EDT. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Jul 2, 2022, 9:49 PM EDT (01:49 UTC)
In effect from
Jul 2, 2022, 10:45 PM EDT
Expired
Jul 3, 2022, 1:43 AM EDT
In force
3 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 01:49 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 11.10 ft at Jul 2, 2022, 11:00 PM EDT.

actionminormoderatemajor51007/0307/04
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.

185 
WGUS41 KPHI 030149
FLWPHI

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
949 PM EDT Sat Jul 2 2022

...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.

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.

The next statement will be issued Sunday morning by 630 AM EDT.

&&


DEC003-031030-
/O.NEW.KPHI.FL.W.0025.220703T0245Z-220703T1022Z/
/CHBD1.1.ER.220703T0245Z.220703T0400Z.220703T0421Z.NO/
949 PM EDT Sat Jul 2 2022

...FLOOD WARNING IN EFFECT UNTIL TOMORROW MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Christina River At Coochs Bridge.

* WHEN...Until tomorrow morning.

* 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.

* ADDITIONAL DETAILS...
  - At 9:16 PM EDT Saturday the stage was 10.3 feet.
  - Forecast...The river is expected to rise above flood stage
    late this evening to a crest of 11.3 feet just after midnight
    tonight. It will then fall below flood stage just after
    midnight tonight.
  - Flood stage is 11.0 feet.
  - Flood History...This crest compares to a previous crest of
    11.3 feet on 11/17/2002.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (10 pm)       Crest
Location        Stg   Stg Day/Time    Sun  Mon        Stg Time Date

Christina River
Coochs Bridge   11.0  10.3 Sat 9 pm   4.0  MSG        11.3 12am 7/03


&&

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


$$

RCM
1 follow-up statement
249 
WGUS81 KPHI 030543
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
143 AM EDT Sun Jul 3 2022

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

  Christina River At Coochs Bridge affecting New Castle County.

DEC003-030645-
/O.CAN.KPHI.FL.W.0025.000000T0000Z-220703T0543Z/
/CHBD1.1.ER.220703T0230Z.220703T0316Z.220703T0410Z.NO/
143 AM EDT Sun Jul 3 2022

...FLOOD WARNING IS CANCELLED...

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

* ADDITIONAL DETAILS...
  - At 1:17 AM EDT Sunday the stage was 10.4 feet.
  - Forecast...The river is expected to fall to 4.3 feet tomorrow
    morning.
  - http://www.weather.gov/safety/flood

&&

Stream          Fld   Observed        Fcsts (2 am)        Crest
Location        Stg   Stg Day/Time    Mon  Tue        Stg Time Date

Christina River
Coochs Bridge   11.0  10.4 Sun 1 am   4.3  MSG         MSG  unknown


&&

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


$$

JEO

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 9:44 PM EDTAreal Flood AdvisoryPHINew Castle3 hr
Jul 2, 10:19 PM EDTSpecial Weather StatementPHIKent56 min
Jul 2, 10:23 PM EDTSevere Thunderstorm WarningPHIKent, Sussex22 min

Nearby

River Flood Warnings in Delaware, 2022Every river flood warning in 2022

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.