Alert archive / Delaware / River Flood Warnings in 2009

River Flood Warning 17, NWS Philadelphia/Mount Holly

October 24, 2009New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Oct 24, 2009, 10:05 PM EDT for New Castle County, Delaware. It was in force for 98 min.

The area

The counties it named.

The facts

Issued
Oct 24, 2009, 10:05 PM EDT (02:05 UTC)
Expired
Oct 24, 2009, 11:43 PM EDT
In force
98 min
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 02:06 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 10.56 ft at Oct 24, 2009, 10:00 PM EDT.

actionminormoderatemajor51010/2510/26
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 250205
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1005 PM EDT SAT OCT 24 2009

...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.

&&

DEC003-250805-
/O.NEW.KPHI.FL.W.0017.091025T0205Z-091025T1026Z/
/CHBD1.1.ER.091025T0145Z.091025T0300Z.091025T0426Z.NO/
1005 PM EDT SAT OCT 24 2009

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE CHRISTINA RIVER AT COOCHS BRIDGE.
* UNTIL SUNDAY MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT  9:45 PM SATURDAY THE STAGE WAS 10.2 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FLOOD STAGE IS 10.5 FEET. 
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 10.9 FEET BY 
  TONIGHT. THE RIVER WILL FALL BELOW FLOOD STAGE AFTER MIDNIGHT 
  TOMORROW.
* 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   10.20  SAT 10 PM   10.9  SAT 11 PM

&&
1 follow-up statement
000 
WGUS81 KPHI 250343
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1143 PM EDT SAT OCT 24 2009

...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.

&&

DEC003-250413-
/O.CAN.KPHI.FL.W.0017.000000T0000Z-091025T1026Z/
/CHBD1.1.ER.091025T0145Z.091025T0215Z.091025T0246Z.NO/
1143 PM EDT SAT OCT 24 2009

* AT 11:30 PM SATURDAY THE STAGE WAS 10.3 FEET. 
* NO ADDITIONAL FLOODING IS CURRENTLY FORECAST.
* FLOOD STAGE IS 10.5 FEET. 
* 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   10.28  SAT 1130 PM  CRESTED 

&&

Nearby

River Flood Warnings in Delaware, 2009Every river flood warning in 2009

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.