Alert archive / Delaware / River Flood Warnings in 2010

River Flood Warning 1, NWS Philadelphia/Mount Holly

January 25, 2010New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Jan 25, 2010, 10:43 AM EST for New Castle County, Delaware. It took effect at Jan 25, 2010, 11:07 AM EST. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Jan 25, 2010, 10:43 AM EST (15:43 UTC)
In effect from
Jan 25, 2010, 11:07 AM EST
Expired
Jan 25, 2010, 4:47 PM EST
In force
6 hr
Issued by
NWS Philadelphia/Mount Holly
Flood severity
Moderate

County New Castle County, DE

The radar

The Dover AFB radar (KDOX), 85 km from the middle of the area, began a volume at 15:45 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 11.45 ft at Jan 25, 2010, 2:00 PM EST.

actionminormoderatemajor51001/2501/26
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.

900 
WGUS41 KPHI 251543
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1043 AM EST MON JAN 25 2010

...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.

&&

DEC003-252143-
/O.NEW.KPHI.FL.W.0001.100125T1607Z-100126T0512Z/
/CHBD1.2.ER.100125T1607Z.100125T1900Z.100125T2312Z.NO/
1043 AM EST MON JAN 25 2010

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 10:30 AM MONDAY THE STAGE WAS 9.8 FEET. 
* MODERATE FLOODING IS FORECAST.
* FLOOD STAGE IS 10.5 FEET.
* FORECAST...RISE ABOVE FLOOD STAGE THIS MORNING AND CONTINUE TO
  RISE TO NEAR 11.8 FEET THIS AFTERNOON. THE RIVER WILL FALL BELOW 
  FLOOD STAGE BY 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    9.78  MON 10 AM   11.8  MON 2 PM 

&&
1 follow-up statement
507 
WGUS81 KPHI 252147
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
447 PM EST MON JAN 25 2010

...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.

&&

DEC003-252217-
/O.CAN.KPHI.FL.W.0001.000000T0000Z-100126T0512Z/
/CHBD1.1.ER.100125T1553Z.100125T1915Z.100125T2133Z.NO/
447 PM EST MON JAN 25 2010

* AT  4:45 PM MONDAY THE STAGE WAS 10.3 FEET AND FALLING.
* NO 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   10.34  MON 5 PM    10.0  MON 5 PM 

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 25, 9:42 AM ESTSevere Thunderstorm WarningPHINew Castle63 min
Jan 25, 9:56 AM ESTAreal Flood AdvisoryPHINew Castle4 hr
Jan 25, 11:10 AM ESTSevere Thunderstorm WarningPHISussex35 min
Jan 25, 11:19 AM ESTAreal Flood AdvisoryPHIKent, Sussex29 days

Nearby

River Flood Warnings in Delaware, 2010Every river flood warning in 2010

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.