Alert archive / Delaware / River Flood Warnings in 2011

River Flood Warning 2, NWS Philadelphia/Mount Holly

March 6, 2011New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Mar 6, 2011, 9:15 PM EST for New Castle County, Delaware. It took effect at Mar 6, 2011, 10:08 PM EST. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Mar 6, 2011, 9:15 PM EST (02:15 UTC)
In effect from
Mar 6, 2011, 10:08 PM EST
Expired
Mar 7, 2011, 12:40 AM EST
In force
3 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 02:19 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 10.36 ft at Mar 6, 2011, 11:00 PM EST.

actionminormoderatemajor51003/0703/08
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.

876 
WGUS41 KPHI 070215
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
915 PM EST SUN MAR 6 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.

&&

DEC003-070815-
/O.NEW.KPHI.FL.W.0002.110307T0308Z-110307T1246Z/
/CHBD1.1.ER.110307T0308Z.110307T0500Z.110307T0646Z.NO/
915 PM EST SUN MAR 6 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE CHRISTINA RIVER AT COOCHS BRIDGE.
* UNTIL MONDAY MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT 9:00 PM SUNDAY THE STAGE WAS 10.1 FEET. 
* FLOOD STAGE IS 10.5 FEET.
* MINOR FLOODING IS FORECAST.
* FORECAST...RISE TO NEAR 11.3 FEET AROUND MIDNIGHT AND FALL BELOW 
  FLOOD STAGE BEFORE DAYBREAK ON MONDAY..
* 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   10.08  SUN 9 PM    11.3  MON 12 AM

&&
1 follow-up statement
719 
WGUS81 KPHI 070540
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1240 AM EST MON MAR 7 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.

&&

DEC003-070610-
/O.CAN.KPHI.FL.W.0002.000000T0000Z-110307T1246Z/
/CHBD1.N.ER.000000T0000Z.000000T0000Z.000000T0000Z.NO/
1240 AM EST MON MAR 7 2011

THE FLOOD WARNING IS CANCELLED FOR
  THE CHRISTINA RIVER AT COOCHS BRIDGE.
* AT 12:31 AM MONDAY THE STAGE WAS 10.1 FEET. 
* FLOOD STAGE IS 10.5 FEET.
* FORECAST...THE RIVER CRESTED BELOW FLOOD STAGE AT 10.4 FEET.  THE 
  RIVER WILL CONTINUE TO FALL TO 5.0 FEET BY TOMORROW 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   10.11  MON 1 AM    10.0  MON 1 AM 

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 6, 9:30 PM ESTAreal Flood AdvisoryPHINew Castle7 hr

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.