Alert archive / Delaware / River Flood Warnings in 2011

River Flood Warning 195, NWS Philadelphia/Mount Holly

September 23, 2011New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Sep 23, 2011, 8:43 PM EDT for New Castle County, Delaware. It took effect at Sep 23, 2011, 8:58 PM EDT. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Sep 23, 2011, 8:43 PM EDT (00:43 UTC)
In effect from
Sep 23, 2011, 8:58 PM EDT
Expired
Sep 24, 2011, 4:18 AM EDT
In force
7 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 00:42 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 11.57 ft at Sep 24, 2011, 12:00 AM EDT.

actionminormoderatemajor51009/2309/2409/25
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.

715 
WGUS41 KPHI 240043
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
843 PM EDT FRI SEP 23 2011

...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...

SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE 
WATER MAY BE DEEPER THAN YOU THINK.

&&

DEC003-240643-
/O.NEW.KPHI.FL.W.0195.110924T0058Z-110924T0903Z/
/CHBD1.1.ER.110924T0058Z.110924T0200Z.110924T0303Z.NO/
843 PM EDT FRI SEP 23 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE CHRISTINA RIVER AT COOCHS BRIDGE.
* UNTIL LATE TONIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT 8:31 PM FRIDAY THE STAGE WAS 10.3 FEET. 
* FLOOD STAGE IS 10.5 FEET.
* MINOR FLOODING IS FORECAST.
* FORECAST...RISE ABOVE FLOOD STAGE BY THIS EVENING AND CONTINUE TO RISE
  TO NEAR 10.6 FEET BY TONIGHT. THE RIVER WILL FALL BELOW FLOOD STAGE 
  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   10.30  FRI 9 PM    10.6  FRI 10 PM

&&
3 follow-up statements
795 
WGUS81 KPHI 240154
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
954 PM EDT FRI SEP 23 2011

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN DELAWARE...
 
  CHRISTINA RIVER AT COOCHS BRIDGE 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.

&&

DEC003-240956-
/O.EXT.KPHI.FL.W.0195.000000T0000Z-110924T0956Z/
/CHBD1.1.ER.110924T0044Z.110924T0200Z.110924T0356Z.NO/
954 PM EDT FRI SEP 23 2011

...FLOOD WARNING EXTENDED UNTIL LATE TONIGHT...THE FLOOD WARNING 
CONTINUES FOR
  THE CHRISTINA RIVER AT COOCHS BRIDGE.
* UNTIL LATE TONIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT 9:46 PM FRIDAY THE STAGE WAS 11.2 FEET. 
* FLOOD STAGE IS 10.5 FEET.
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST. 
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 11.4 FEET BY 
  TONIGHT. THE RIVER WILL FALL BELOW FLOOD STAGE 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   11.23  FRI 10 PM   11.4  FRI 10 PM

&&
317 
WGUS41 KPHI 240250
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1050 PM EDT FRI SEP 23 2011

...FORECAST FLOODING CHANGED FROM MINOR TO MODERATE SEVERITY FOR THE 
FOLLOWING RIVERS IN DELAWARE...
  CHRISTINA RIVER AT COOCHS BRIDGE 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.

&&

DEC003-240850-
/O.EXT.KPHI.FL.W.0195.000000T0000Z-110924T1048Z/
/CHBD1.2.ER.110924T0044Z.110924T0300Z.110924T0448Z.NO/
1050 PM EDT FRI SEP 23 2011

...FORECAST FLOODING INCREASED FROM MINOR TO MODERATE SEVERITY...
THE FLOOD WARNING CONTINUES FOR 
  THE CHRISTINA RIVER AT COOCHS BRIDGE.
* UNTIL SATURDAY MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT 10:31 PM FRIDAY THE STAGE WAS 11.5 FEET AND RISING. 
* FLOOD STAGE IS 10.5 FEET.
* MODERATE FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 11.7 FEET BY 
  MIDNIGHT. THE RIVER WILL FALL BELOW FLOOD STAGE SATURDAY MORNING.
* 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   11.46  FRI 11 PM   11.7  FRI 11 PM

&&
657 
WGUS81 KPHI 240818
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
418 AM EDT SAT SEP 24 2011

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN 
DELAWARE...
 
  CHRISTINA RIVER AT COOCHS BRIDGE 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.

&&

DEC003-240848-
/O.CAN.KPHI.FL.W.0195.000000T0000Z-110924T1048Z/
/CHBD1.2.ER.110924T0044Z.110924T0331Z.110924T0612Z.NO/
418 AM EDT SAT SEP 24 2011

THE FLOOD WARNING IS CANCELLED FOR
  THE CHRISTINA RIVER AT COOCHS BRIDGE.
* AT  4:01 AM SATURDAY THE STAGE WAS 8.8 FEET. 
* FLOOD STAGE IS 10.5 FEET. 
* FELL BELOW FLOOD STAGE AT  2:12 AM SATURDAY.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO 5.6 FEET BY SUNDAY
  MORNING.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

CHRISTINA RIVER
  COOCHS BRIDGE   10.5   8.75  SAT 4 AM     CRESTED AND FALLING 

&&

Nearby

River Flood Warnings in Delaware, 2011Every river flood warning in 2011

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.