Alert archive / Delaware / River Flood Warnings in 2009

River Flood Warning 31, NWS Philadelphia/Mount Holly

December 26, 2009New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Dec 26, 2009, 2:34 AM EST for New Castle County, Delaware. It took effect at Dec 26, 2009, 3:44 AM EST. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued: Dec 26, 2009, 2:34 AM EST (07:34 UTC)
In effect from: Dec 26, 2009, 3:44 AM EST
Expired: Dec 26, 2009, 8:12 PM EST
In force: 16 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 07:37 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 11.40 ft at Dec 26, 2009, 1:00 PM 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 260734
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
234 AM EST SAT DEC 26 2009

...THE NATIONAL WEATHER SERVICE HAS ISSUED A FLOOD WARNING FOR
THE CHRISTINA RIVER AT COOCHS BRIDGE...

&&

DEC003-261334-
/O.NEW.KPHI.FL.W.0031.091226T0844Z-091226T1749Z/
/CHBD1.1.ER.091226T0844Z.091226T1000Z.091226T1149Z.NO/
234 AM EST SAT DEC 26 2009

THE NATIONAL WEATHER SERVICE HAS ISSUED A 

* FLOOD WARNING FOR 
  THE CHRISTINA RIVER AT COOCHS BRIDGE.
* UNTIL THIS AFTERNOON OR UNTIL THE WARNING IS CANCELLED.
* AT 2:15 AM, THE STAGE WAS 9.8 FEET AND RISING. 
* MINOR FLOODING IS FORECAST. 
* FLOOD STAGE IS 10.5 FEET. 
* FORECAST...THE RIVER SHOULD RISE ABOVE FLOOD STAGE SHORTLY AND
  IT IS EXPECTED TO CREST NEAR 11 FEET BEFORE DAYBREAK. THE RIVER
  SHOULD FALL BACK BELOW FLOOD STAGE BY LATE 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    9.8  SAT 215 AM    11.0  SAT 500 AM 

&&

IOVINO

3 follow-up statements

000 
WGUS81 KPHI 261144
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
644 AM EST SAT DEC 26 2009

...THE FLOOD WARNING CONTINUES FOR THE CHRISTINA RIVER AT COOCHS
BRIDGE...

&&

DEC003-261931-
/O.EXT.KPHI.FL.W.0031.000000T0000Z-091226T1931Z/
/CHBD1.1.ER.091226T0855Z.091226T1200Z.091226T1331Z.NO/
644 AM EST SAT DEC 26 2009

THE FLOOD WARNING CONTINUES FOR 
  THE CHRISTINA RIVER AT COOCHS BRIDGE.
* UNTIL THIS AFTERNOON...OR UNTIL THE WARNING IS CANCELLED.
* AT 6:30 AM, THE STAGE WAS 10.8 FEET AND CRESTING. 
* MINOR FLOODING IS OCCURRING.
* THE CHRISTINA RIVER SHOULD FALL BACK BELOW FLOOD STAGE LATE THIS
  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   10.8  SAT 630 AM    CRESTING 

&&

IOVINO

000 
WGUS81 KPHI 261644
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1144 AM EST SAT DEC 26 2009

...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.

&&

DEC003-270244-
/O.EXT.KPHI.FL.W.0031.000000T0000Z-091227T0620Z/
/CHBD1.1.ER.091226T0855Z.091226T1900Z.091227T0020Z.NO/
1144 AM EST SAT DEC 26 2009

...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 11:30 AM SATURDAY THE STAGE WAS 11.2 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST. 
* FLOOD STAGE IS 10.5 FEET.
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 11.5 FEET THIS 
  AFTERNOON. THE RIVER WILL FALL BELOW FLOOD STAGE THIS EVENING.
* 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   11.20  SAT 11 AM   11.5  SAT 2 PM 

&&

000 
WGUS81 KPHI 270112
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
812 PM EST SAT DEC 26 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.

&&

DEC003-270142-
/O.CAN.KPHI.FL.W.0031.000000T0000Z-091227T0620Z/
/CHBD1.1.ER.091226T0855Z.091226T1830Z.091227T0050Z.NO/
812 PM EST SAT DEC 26 2009

THE FLOOD WARNING IS CANCELLED FOR
  THE CHRISTINA RIVER AT COOCHS BRIDGE.
* AT 8:00 PM SATURDAY THE STAGE WAS 10.48 FEET. 
* FELL BELOW FLOOD STAGE AT  7:50 PM SATURDAY.
* FLOOD STAGE IS 10.5 FEET.
* FORECAST...THE RIVER WILL CONTINUE TO FALL THROUGH THE OVERNIGHT
  HOURS.
* 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   10.48  SAT 8 PM     ALREADY CRESTED 

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 26, 7:42 AM EST	Coastal Flood Advisory	PHI	Kent, New Castle, Sussex	15 hr
Dec 26, 10:28 AM EST	Areal Flood Warning	PHI	New Castle	20 hr
Dec 26, 12:37 PM EST	River Flood Warning	PHI	New Castle	6 hr
Dec 26, 3:11 PM EST	River Flood Warning	PHI	New Castle	3 hr

Nearby

River Flood Warnings in Delaware, 2009 Every 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.