Alert archive / Delaware / River Flood Warnings in 2020

River Flood Warning 44, NWS Philadelphia/Mount Holly

November 30, 2020New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Nov 30, 2020, 5:39 PM EST for New Castle County, Delaware. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Nov 30, 2020, 5:39 PM EST (22:39 UTC)
Expired
Nov 30, 2020, 9:37 PM EST
In force
4 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), 100 km from the middle of the area, began a volume at 22:44 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 White Clay Creek near Newark (DPKD1). The gauge peaked at 14.15 ft at Nov 30, 2020, 7:00 PM EST.

actionminormoderate5101511/3012/0112/02
Action stage
11 ft
Minor stage
13 ft
Moderate stage
15 ft
Major stage
16.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01479000, 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.

540 
WGUS41 KPHI 302239
FLWPHI

BULLETIN - EAS ACTIVATION REQUESTED
Flood Warning
National Weather Service Mount Holly NJ
539 PM EST Mon Nov 30 2020

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

  White Clay Creek Near Newark affecting New Castle County.

For the White Clay Creek...including Newark...Minor flooding is 
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.


DEC003-010430-
/O.NEW.KPHI.FL.W.0044.201130T2239Z-201201T0422Z/
/DPKD1.1.ER.201130T2124Z.201201T0000Z.201201T0121Z.NO/
539 PM EST Mon Nov 30 2020

The National Weather Service in Mount Holly has issued a

* Flood Warning for
  the White Clay Creek Near Newark.
* From this afternoon to this evening.
* At 5:15 PM EST Monday the stage was 13.7 feet.
* Flood stage is 13.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 5:15 PM EST Monday was 13.7 feet.
* Forecast...The river is expected to rise to a crest of 14.0 feet 
  this evening. It will then fall below flood stage this evening.
* Impact at 11.0 feet...Flooding begins into adjacent open fields. 
  Impact at 13.3 feet...Delaware Route 7, Stanton Christiana Road, 
  begins to flood. Impact at 13.5 feet...Businesses on Delaware 
  Route 7 begin to flood.
* Flood History...This crest compares to a previous crest of 14.0 
  feet on 12/11/2003.

&&


Stream          Fld   Observed        Fcsts (6 pm)        Crest
Location        Stg   Stg Day/Time    Tue  Wed        Stg Time Date

White Clay Creek
Newark          13.0  13.7 Mon 5 pm   8.7  MSG        14.0 7pm 11/30





&&

LAT...LON 3972 7576 3973 7566 3967 7564 3966 7574

$$

PO
2 follow-up statements
248 
WGUS81 KPHI 010113
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
813 PM EST Mon Nov 30 2020

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

  White Clay Creek Near Newark affecting New Castle County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.


DEC003-010430-
/O.CON.KPHI.FL.W.0044.000000T0000Z-201201T0422Z/
/DPKD1.1.ER.201130T2124Z.201130T2347Z.201201T0122Z.NO/
813 PM EST Mon Nov 30 2020

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

The Flood Warning continues for
  the White Clay Creek Near Newark.
* Until this evening.
* At 7:46 PM EST Monday the stage was 13.9 feet.
* Flood stage is 13.0 feet.
* Minor flooding is occurring.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 7:46 PM EST Monday was 14.2 feet.
* Forecast...The river has crested at 14.2 feet this evening and is 
  forecast to continue to fall below flood stage later tonight.
* Impact at 11.0 feet...Flooding begins into adjacent open fields. 
  Impact at 13.3 feet...Delaware Route 7, Stanton Christiana Road, 
  begins to flood. Impact at 13.5 feet...Businesses on Delaware 
  Route 7 begin to flood.
* Flood History...This crest compares to a previous crest of 13.9 
  feet on 12/04/1996.

&&


Stream          Fld   Observed        Fcsts (8 pm)        Crest
Location        Stg   Stg Day/Time    Tue             Stg Time Date

White Clay Creek
Newark          13.0  13.9 Mon 7 pm   8.7             12.1 9pm 11/30





&&

LAT...LON 3972 7576 3973 7566 3967 7564 3966 7574

$$

BAH
621 
WGUS81 KPHI 010237
FLSPHI

Flood Statement
National Weather Service Mount Holly NJ
937 PM EST Mon Nov 30 2020

...The Flood Warning is cancelled for the White Clay Creek near 
Newark...
DEC003-010345-
/O.CAN.KPHI.FL.W.0044.000000T0000Z-201201T0237Z/
/DPKD1.1.ER.700119T1419Z.700119T1419Z.700119T1419Z.NO/
937 PM EST Mon Nov 30 2020

...The Flood Warning for the White Clay Creek Near Newark has been 
cancelled...

The Flood Warning is cancelled for
  the White Clay Creek Near Newark.
* At 9:15 PM Monday the creek level was 12.5 feet.
* Flood stage is 13.0 feet.
* Forecast...The creek level is expected to continue falling.

&&


Stream          Fld   Observed        Fcsts (10 pm)       Crest
Location        Stg   Stg Day/Time    Tue  Wed        Stg Time Date

White Clay Creek
Newark          13.0  12.5 Mon 9 pm   7.6  MSG        Crested 





&&

LAT...LON 3972 7576 3973 7566 3967 7564 3966 7574

$$

Iovino

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 30, 11:35 AM ESTRiver Flood WarningPHINew Castle11 hr
Nov 30, 12:15 PM ESTAreal Flood AdvisoryPHINew Castle3 hr
Nov 30, 2:01 PM ESTCoastal Flood StatementPHISussex3 hr
Nov 30, 2:41 PM ESTSevere Thunderstorm WarningPHINew Castle49 min
Nov 30, 2:48 PM ESTAreal Flood WarningPHINew Castle8 hr
Nov 30, 3:01 PM ESTSevere Thunderstorm WarningPHINew Castle44 min
Nov 30, 3:04 PM ESTSevere Thunderstorm WarningPHIKent, New Castle56 min
Nov 30, 3:21 PM ESTTornado Warning Tornado observedPHIKent24 min
Nov 30, 3:47 PM ESTTornado WarningPHIKent28 min
Nov 30, 5:24 PM ESTRiver Flood WarningPHINew Castle5 hr

Nearby

River Flood Warnings in Delaware, 2020Every 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.