Alert archive / Delaware / River Flood Warnings in 2010

River Flood Warning 66, NWS Philadelphia/Mount Holly

October 1, 2010New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Oct 1, 2010, 1:08 AM EDT for New Castle County, Delaware. It took effect at Oct 1, 2010, 1:52 AM EDT. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Oct 1, 2010, 1:08 AM EDT (05:08 UTC)
In effect from
Oct 1, 2010, 1:52 AM EDT
Expired
Oct 1, 2010, 2:53 PM EDT
In force
13 hr
Issued by
NWS Philadelphia/Mount Holly
Flood severity
Minor

County New Castle County, DE

The radar

The Dover AFB radar (KDOX), 85 km from the middle of the area, began a volume at 05:11 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 15.95 ft at Oct 1, 2010, 5:00 AM EDT.

actionminormoderatemajor5101510/0110/02
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, in the capitals the NWS used until 2016.

771 
WGUS41 KPHI 010508
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
108 AM EDT FRI OCT 1 2010

...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.

&&

DEC003-011108-
/O.NEW.KPHI.FL.W.0066.101001T0552Z-101001T1356Z/
/DPKD1.1.ER.101001T0552Z.101001T0700Z.101001T0756Z.NO/
108 AM EDT FRI OCT 1 2010

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE WHITE CLAY CREEK NEAR NEWARK.
* UNTIL THIS MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT 1:01 AM FRIDAY THE STAGE WAS 11.1 FEET. 
* FLOOD STAGE IS 13.0 FEET.
* MINOR FLOODING IS FORECAST.
* FORECAST...RISE ABOVE FLOOD STAGE BY AFTER MIDNIGHT THIS MORNING AND 
  CONTINUE TO RISE TO NEAR 13.9 FEET BY EARLY THIS MORNING. THE RIVER 
  WILL FALL BELOW FLOOD STAGE BY EARLY THIS MORNING.
* IMPACT...AT 13.5 FEET...BUSINESSES IN THE AREA BEGIN TO FLOOD.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

WHITE CLAY CREEK
  NEWARK           13.0   11.13  FRI 1 AM    13.9  FRI 3 AM 

&&
3 follow-up statements
745 
WGUS41 KPHI 010809
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
409 AM EDT FRI OCT 1 2010

...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.

&&

DEC003-011409-
/O.EXT.KPHI.FL.W.0066.000000T0000Z-101001T1611Z/
/DPKD1.2.ER.101001T0533Z.101001T0715Z.101001T1011Z.NO/
409 AM EDT FRI OCT 1 2010

...FORECAST FLOODING INCREASED FROM MINOR TO MAJOR SEVERITY...

THE FLOOD WARNING CONTINUES FOR 
  THE WHITE CLAY CREEK NEAR NEWARK.
* UNTIL THIS AFTERNOON...OR UNTIL THE WARNING IS CANCELLED.
* AT 3:15 AM FRIDAY 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 TO RISE THROUGH DAYBREAK AND 
  THEN FALL BELOW FLOOD STAGE LATER THIS MORNING.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

WHITE CLAY CREEK
  NEWARK           13.0   15.66  FRI 3 AM    17.0  FRI 5 AM 

&&
586 
WGUS81 KPHI 011351
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
951 AM EDT FRI OCT 1 2010

...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.

&&

DEC003-012351-
/O.EXT.KPHI.FL.W.0066.000000T0000Z-101002T0407Z/
/DPKD1.2.ER.101001T0533Z.101001T0846Z.101001T2207Z.NO/
951 AM EDT FRI OCT 1 2010

...FLOOD WARNING EXTENDED UNTIL LATE TONIGHT...THE FLOOD WARNING 
CONTINUES FOR
  THE WHITE CLAY CREEK NEAR NEWARK.
* UNTIL LATE TONIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT  9:16 AM FRIDAY THE STAGE WAS 15.4 FEET. 
* FLOOD STAGE IS 13.0 FEET.
* MODERATE FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST. 
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY 
  THIS EVENING.
* IMPACT...AT 13.5 FEET...BUSINESSES IN THE AREA BEGIN TO FLOOD.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

WHITE CLAY CREEK
  NEWARK           13.0   15.35  FRI 9 AM    14.6  FRI 11 AM

&&
928 
WGUS81 KPHI 011853
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
253 PM EDT FRI OCT 1 2010

...THE FLOOD WARNING IS CANCELLED 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.

&&

DEC003-011923-
/O.CAN.KPHI.FL.W.0066.000000T0000Z-101002T0407Z/
/DPKD1.2.ER.101001T0533Z.101001T0846Z.101001T1736Z.NO/
253 PM EDT FRI OCT 1 2010

THE FLOOD WARNING IS CANCELLED FOR
  THE WHITE CLAY CREEK NEAR NEWARK.
* AT  2:46 PM FRIDAY THE STAGE WAS 10.8 FEET. 
* FLOOD STAGE IS 13.0 FEET.
* FELL BELOW FLOOD STAGE AT  1:36 PM FRIDAY.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO 8.8 FEET BY TOMORROW 
  MORNING.
* IMPACT...AT 13.5 FEET...BUSINESSES IN THE AREA BEGIN TO FLOOD.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

WHITE CLAY CREEK
  NEWARK           13.0   10.78  FRI 3 PM    12.0  FRI 3 PM 

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 1, 12:40 AM EDTSpecial Weather StatementPHINew Castle65 min
Oct 1, 12:49 AM EDTRiver Flood WarningPHINew Castle14 hr
Oct 1, 12:57 AM EDTSpecial Weather StatementPHIKent63 min
Oct 1, 1:22 AM EDTSpecial Weather StatementPHIKent, New Castle, Sussex53 min
Oct 1, 2:08 AM EDTRiver Flood WarningPHINew Castle12 hr
Oct 1, 2:23 AM EDTRiver Flood WarningPHINew Castle23 hr
Oct 1, 3:11 AM EDTAreal Flood WarningPHISussex12 hr

Nearby

River Flood Warnings in Delaware, 2010Every river flood warning in 2010

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.