Alert archive / Delaware / River Flood Warnings in 2008

River Flood Warning 40, NWS Philadelphia/Mount Holly

December 11, 2008New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Dec 11, 2008, 9:39 PM EST for New Castle County, Delaware. It took effect at Dec 11, 2008, 10:16 PM EST. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: Dec 11, 2008, 9:39 PM EST (02:39 UTC)
In effect from: Dec 11, 2008, 10:16 PM EST
Expired: Dec 12, 2008, 11:25 AM EST
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 02:39 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 11.31 ft at Dec 12, 2008, 3:00 AM EST.

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, in the capitals the NWS used until 2016.

000 
WGUS41 KPHI 120239
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
939 PM EST THU DEC 11 2008

...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

...MINOR FLOODING IS FORECAST FOR THE CHRISTINA RIVER...

DEC003-120839-
/O.NEW.KPHI.FL.W.0040.081212T0434Z-081212T1630Z/
/CHBD1.1.ER.081212T0434Z.081212T0800Z.081212T1030Z.NO/
939 PM EST THU DEC 11 2008

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE CHRISTINA RIVER AT COOCHS BRIDGE.
* UNTIL EARLY FRIDAY MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT 9:30 PM THURSDAY THE STAGE WAS 10.1 FEET. 
* MINOR FLOODING IS FORECAST. 
* FLOOD STAGE IS 10.5 FEET. 
* FORECAST...RISE ABOVE FLOOD STAGE LATE THIS EVENING AND CONTINUE TO
  RISE TO NEAR 11.0 FEET OVERNIGHT. 
* IMPACT...AT 10.0 FEET...FLOODING BEGINS IN THE TOWN OF CHRISTIANA.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

CHRISTINA RIVER
  COOCHS BRIDGE    10.5   10.09  THU 9 PM    11.0  FRI 3 AM 

&&

2 follow-up statements

000 
WGUS81 KPHI 120318
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1018 PM EST THU DEC 11 2008

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN DELAWARE...
 
  CHRISTINA RIVER AT COOCHS BRIDGE AFFECTING NEW CASTLE COUNTY 

...MINOR FLOODING IS OCCURRING AND EXPECTED TO CONTINUE ON THE CHRISTINA
RIVER...

DEC003-121318-
/O.EXT.KPHI.FL.W.0040.081212T0316Z-081212T1325Z/
/CHBD1.1.ER.081212T0304Z.081212T0400Z.081212T0725Z.NO/
1018 PM EST THU DEC 11 2008

THE FLOOD WARNING CONTINUES FOR
  THE CHRISTINA RIVER AT COOCHS BRIDGE.
* UNTIL EARLY FRIDAY MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT 10:14 PM THURSDAY THE STAGE WAS 10.5 FEET. 
* MINOR FLOODING IS OCCURRING. 
* FLOOD STAGE IS 10.5 FEET.
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 11.1 FEET  
  OVERNIGHT. 
* IMPACT...AT 10.0 FEET...FLOODING BEGINS IN THE TOWN OF CHRISTIANA.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

CHRISTINA RIVER
  COOCHS BRIDGE    10.5   10.50  THU 10 PM   11.1  THU 11 PM

&&

000 
WGUS81 KPHI 120803
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
303 AM EST FRI DEC 12 2008

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN DELAWARE...
 
  CHRISTINA RIVER AT COOCHS BRIDGE AFFECTING NEW CASTLE COUNTY 

...MINOR FLOODING IS OCCURRING AND EXPECTED TO CONTINUE ON THE CHRISTINA
RIVER...

DEC003-121625-
/O.EXT.KPHI.FL.W.0040.000000T0000Z-081212T1625Z/
/CHBD1.1.ER.081212T0304Z.081212T0753Z.081212T1025Z.NO/
303 AM EST FRI DEC 12 2008

...FLOOD WARNING EXTENDED FOR THE CHRISTINA RIVER AT COOCHS BRIDGE.
* UNTIL LATE THIS MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT 2:53 AM FRIDAY THE STAGE WAS 11.3 FEET. 
* MINOR FLOODING IS OCCURRING. 
* FLOOD STAGE IS 10.5 FEET.
* FORECAST...NEAR CREST.
* IMPACT...AT 10.0 FEET...FLOODING BEGINS IN THE TOWN OF CHRISTIANA.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

CHRISTINA RIVER
  COOCHS BRIDGE    10.5   11.31  FRI 3 AM    NEAR CREST 

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 11, 7:46 PM EST	Areal Flood Advisory	PHI	New Castle	9 hr
Dec 11, 9:32 PM EST	Areal Flood Warning	PHI	New Castle	12 hr
Dec 12, 4:19 AM EST	River Flood Warning	PHI	New Castle	8 hr
Dec 12, 4:31 AM EST	River Flood Warning	PHI	New Castle	9 hr
Dec 12, 9:00 AM EST	Coastal Flood Advisory	PHI	New Castle	6 hr

Nearby

River Flood Warnings in Delaware, 2008 Every river flood warning in 2008

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.