Alert archive / Delaware / River Flood Warnings in 2020

River Flood Warning 16, NWS Philadelphia/Mount Holly

August 4, 2020New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Aug 4, 2020, 10:38 AM EDT for New Castle County, Delaware. It took effect at Aug 4, 2020, 11:07 AM EDT. It was in force for 14 hr.

The area

The outline as issued.

The facts

Issued: Aug 4, 2020, 10:38 AM EDT (14:38 UTC)
In effect from: Aug 4, 2020, 11:07 AM EDT
Expired: Aug 5, 2020, 12:47 AM EDT
In force: 14 hr
Issued by: NWS Philadelphia/Mount Holly
Area: Storm-based polygon
Flood severity: Minor

County New Castle County, DE

The river

Written for the forecast point White Clay Creek near Newark (DPKD1). The gauge peaked at 16.48 ft at Aug 4, 2020, 8:00 PM EDT.

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.

386 
WGUS41 KPHI 041438
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mt Holly NJ
1038 AM EDT Tue Aug 4 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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas.
The water may be deeper than you think.

&&

DEC003-042037-
/O.NEW.KPHI.FL.W.0016.200804T1507Z-200804T2254Z/
/DPKD1.1.ER.200804T1507Z.200804T1600Z.200804T1654Z.NO/
1038 AM EDT Tue Aug 4 2020

The National Weather Service in Mount Holly NJ has issued a 

* Flood Warning for 
  The White Clay Creek at Newark.
* Until this evening...or until the warning is cancelled.
* At 10:15 AM Tuesday the stage was 11.0 feet.
* Flood stage is 13.0 feet.
* Minor flooding is forecast.
* Forecast...Rise above flood stage by late this morning and 
  continue to rise to near 14.1 feet by this afternoon.
* Impact...At 13.5 feet...Businesses on Delaware Route 7 begin to
  flood.
* Flood history...This crest compares to a previous crest of 14.3 
  feet on Aug 13 2018.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG    DAY TIME    CREST

White Clay Creek
  Newark                 13.0   11.04  Tue 10 AM   14.1    Tue 12 PM
 
&&
 
LAT...LON 3972 7576 3973 7566 3967 7564 3966 7574
                                      

$$

Kruzdlo

5 follow-up statements

618 
WGUS41 KPHI 041749
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mt Holly NJ
149 PM EDT Tue Aug 4 2020

...Forecast flooding changed from Minor to Major severity 
for the following rivers in Delaware...

  White Clay Creek Near Newark affecting New Castle County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas. 
The water may be deeper than you think.

&&

DEC003-042348-
/O.EXT.KPHI.FL.W.0016.000000T0000Z-200805T0524Z/
/DPKD1.3.ER.200804T1452Z.200804T1900Z.200804T2324Z.NO/
149 PM EDT Tue Aug 4 2020

...Forecast flooding increased from Minor to Major severity...

The Flood Warning continues for 
 The White Clay Creek at Newark.
* Until late tonight...or until the warning is cancelled.
* At 1:16 PM Tuesday the stage was 15.7 feet.
* Flood stage is 13.0 feet.
* Moderate flooding is occurring and Major flooding is forecast.
* Forecast...The river will continue rising to near 16.5 feet by
  late this afternoon. The river will fall below flood stage this
  evening.
* Impact...At 17.0 feet...Paper Mill Road begins to flood.
* Flood history...This crest compares to a previous crest of 16.8
  feet on Sep 15 2003.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG    DAY TIME    CREST

White Clay Creek
  Newark                 13.0   15.74  Tue 1 PM    16.5    Tue 3 PM 
 
&&
 
LAT...LON 3972 7576 3973 7566 3967 7564 3966 7574
                                      

$$

Kruzdlo

853 
WGUS81 KPHI 042037
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
437 PM EDT Tue Aug 4 2020

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

  White Clay Creek Near Newark affecting New Castle County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas. The water may be
deeper than you think.

&&

DEC003-050459-
/O.EXT.KPHI.FL.W.0016.000000T0000Z-200805T0459Z/
/DPKD1.2.ER.200804T1452Z.200804T1830Z.200804T2259Z.NO/
437 PM EDT Tue Aug 4 2020

The Flood Warning continues for
  The White Clay Creek at Newark.
* until late tonight...Or until the warning is cancelled.
* At  4:31 PM Tuesday the stage was 15.9 feet.
* Flood stage is 13.0 feet.
* Moderate flooding is occurring and Moderate flooding is forecast.
* Forecast...The river will fall below flood stage later this 
  evening.
* Impact...At 17.0 feet...Paper Mill Road begins to flood.
* Flood history...This crest compares to a previous crest of 15.9 feet on Jan 19 
  1996.  

 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

White Clay Creek
  Newark                 13.0   15.85  Tue 5 PM    15.8    Tue 5 PM 
 
&&
 
LAT...LON 3972 7576 3973 7566 3967 7564 3966 7574
                                      

$$

159 
WGUS41 KPHI 042340
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Mt Holly NJ
740 PM EDT Tue Aug 4 2020

...Forecast flooding changed from Moderate to Major severity for the following 
rivers in Delaware...
  White Clay Creek Near Newark affecting New Castle County

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas. The water may be
deeper than you think.

&&

DEC003-050540-
/O.EXT.KPHI.FL.W.0016.000000T0000Z-200805T0834Z/
/DPKD1.3.ER.200804T1452Z.200805T0000Z.200805T0234Z.NO/
740 PM EDT Tue Aug 4 2020

...Forecast flooding increased from Moderate to Major severity...
The Flood Warning continues for 
 The White Clay Creek Near Newark.
* until late tonight...Or until the warning is cancelled.
* At  7:15 PM Tuesday the stage was 16.4 feet.
* Flood stage is 13.0 feet.
* Moderate flooding is occurring and Major flooding is forecast.
* Forecast...The river will continue rising to near 16.8 feet by this evening. 
  The river will fall below flood stage tonight.
* Impact...At 17.0 feet...Paper Mill Road begins to flood.
* Flood history...This crest compares to a previous crest of 16.8 feet on Sep 15 
  2003.  

 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

White Clay Creek
  Newark                 13.0   16.44  Tue 7 PM    16.8    Tue 8 PM 
 
&&
 
LAT...LON 3972 7576 3973 7566 3967 7564 3966 7574
                                      

$$

734 
WGUS81 KPHI 050257
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
1057 PM EDT Tue Aug 4 2020

...The Flood Warning continues for the White Clay Creek near Newark...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas. The water may be
deeper than you think it is.

&&

DEC003-051132-
/O.EXT.KPHI.FL.W.0016.000000T0000Z-200805T1132Z/
/DPKD1.2.ER.200804T1452Z.200804T2345Z.200805T0532Z.NO/
1057 PM EDT Tue Aug 4 2020

The Flood Warning continues for
  The White Clay Creek near Newark.
* At 10:30 PM Tuesday, the creek level was 15.7 feet.
* Flood stage is 13.0 feet.
* Moderate flooding is occurring and is forecast to continue.
* Forecast...The creek level will continue to fall and it should be back below
  flood stage by morning.
* Impact...At 17.0 feet, Paper Mill Road begins to flood.
* Flood history...This crest compares to a previous crest of 15.9 feet on Jan 19, 
  1996.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

White Clay Creek
  Newark                 13.0   15.71  Tue 11 PM   Crested
 
&&
 
LAT...LON 3972 7576 3973 7566 3967 7564 3966 7574
                                      

$$

Iovino

290 
WGUS81 KPHI 050447
FLSPHI
Flood Statement
National Weather Service Mt Holly NJ
1247 AM EDT Wed Aug 5 2020

...The Flood Warning is cancelled for the White Clay Creek...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...Do not attempt to drive through flooded areas. The water may be
deeper than you think it is.

&&

DEC003-050517-
/O.CAN.KPHI.FL.W.0016.000000T0000Z-200805T1132Z/
/DPKD1.2.ER.200804T1452Z.200804T2345Z.200805T0408Z.NO/
1247 AM EDT Wed Aug 5 2020

The Flood Warning is cancelled for
  The White Clay Creek at Newark.
* At 12:15 AM, the creek level was 12.7 feet.
* Flood stage is 13.0 feet.
* The creek level fell below flood stage at 12:08 AM.
* Forecast...The creek will continue to fall to 6.7 feet on Wednesday morning.
* Impact...At 13.5 feet, businesses on Delaware Route 7 begin to flood.
* Flood history...This crest compares to a previous crest of 13.2 feet on Oct 28, 
  2003.  
 
&&

                         FLD    OBSERVED           FORECAST
 LOCATION                STG    STG  DAY TIME      CREST

White Clay Creek
  Newark                 13.0   12.69  Wed 12 AM   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.

Issued	Product	Office	Counties	Lasted
Aug 4, 4:50 AM EDT	Tornado Warning	PHI	Sussex	25 min
Aug 4, 5:17 AM EDT	Areal Flood Advisory	PHI	New Castle	4 hr
Aug 4, 7:28 AM EDT	Flash Flood Warning	PHI	New Castle	3 hr
Aug 4, 7:39 AM EDT	Tornado Warning	PHI	Sussex	36 min
Aug 4, 7:51 AM EDT	Tornado Warning	PHI	Sussex	24 min
Aug 4, 8:15 AM EDT	Tornado Warning	PHI	Kent	45 min
Aug 4, 8:18 AM EDT	Tornado Warning	PHI	Sussex	27 min
Aug 4, 8:27 AM EDT	Tornado Warning	PHI	Kent	33 min
Aug 4, 8:56 AM EDT	Tornado Warning	PHI	Kent, New Castle	34 min
Aug 4, 8:58 AM EDT	Flash Flood Warning	PHI	Kent, New Castle, Sussex	3 hr
Aug 4, 9:06 AM EDT	River Flood Warning	PHI	New Castle	11 hr
Aug 4, 9:23 AM EDT	Flash Flood Warning	PHI	New Castle	4 hr
Aug 4, 9:23 AM EDT	Tornado Warning Tornado observed	PHI	New Castle	22 min
Aug 4, 10:02 AM EDT	Flash Flood Warning	PHI	New Castle	4 hr
Aug 4, 12:27 PM EDT	River Flood Warning	PHI	New Castle	10 hr
Aug 4, 12:48 PM EDT	River Flood Warning	PHI	New Castle	24 hr
Aug 4, 1:59 PM EDT	Areal Flood Warning	PHI	New Castle	9 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; the gauge from the NWS water service and the USGS.