Alert archive / Delaware / River Flood Warnings in 2012

River Flood Warning 1, NWS Philadelphia/Mount Holly

January 12, 2012New Castle County, Delaware

NWS Philadelphia/Mount Holly issued this river flood warning at Jan 12, 2012, 5:57 AM EST for New Castle County, Delaware. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued: Jan 12, 2012, 5:57 AM EST (10:57 UTC)
Expired: Jan 12, 2012, 12:51 PM EST
In force: 7 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 11:01 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 11.80 ft at Jan 12, 2012, 9:00 AM 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.

281 
WGUS41 KPHI 121057
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
557 AM EST THU JAN 12 2012

...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.

&&

DEC003-121657-
/O.NEW.KPHI.FL.W.0001.120112T1057Z-120113T0019Z/
/CHBD1.2.ER.120112T1054Z.120112T1400Z.120112T1819Z.NO/
557 AM EST THU JAN 12 2012

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE CHRISTINA RIVER AT COOCHS BRIDGE.
* UNTIL THIS EVENING...OR UNTIL THE WARNING IS CANCELLED.
* AT 5:46 AM THURSDAY THE STAGE WAS 10.4 FEET. 
* FLOOD STAGE IS 10.5 FEET.
* MODERATE FLOODING IS FORECAST.
* FORECAST...RISE ABOVE FLOOD STAGE EARLY THIS MORNING AND CONTINUE 
  TO RISE TO NEAR 11.5 FEET BY LATE THIS MORNING. THE RIVER WILL FALL 
  BELOW FLOOD STAGE BY THIS AFTERNOON.
* 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   10.36  THU 6 AM    11.5    THU 9 AM 

&&

2 follow-up statements

359 
WGUS81 KPHI 121250
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
750 AM EST THU JAN 12 2012

...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.

&&

DEC003-122250-
/O.EXT.KPHI.FL.W.0001.000000T0000Z-120113T0025Z/
/CHBD1.2.ER.120112T1050Z.120112T1400Z.120112T1825Z.NO/
750 AM EST THU JAN 12 2012

THE FLOOD WARNING CONTINUES FOR
  THE CHRISTINA RIVER AT COOCHS BRIDGE.
* AT 7:46 AM THURSDAY THE STAGE WAS 11.7 FEET. 
* FLOOD STAGE IS 10.5 FEET. 
* MODERATE FLOODING IS OCCURRING AND MODERATE FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 12.1 FEET BY LATE 
  THIS MORNING. THE RIVER WILL FALL BELOW FLOOD STAGE THIS AFTERNOON.
* 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   11.70  THU 8 AM    12.1    THU 9 AM 

&&

941 
WGUS81 KPHI 121751
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1251 PM EST THU JAN 12 2012

...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.

&&

DEC003-121821-
/O.CAN.KPHI.FL.W.0001.000000T0000Z-120113T0025Z/
/CHBD1.2.ER.120112T1050Z.120112T1401Z.120112T1634Z.NO/
1251 PM EST THU JAN 12 2012

THE FLOOD WARNING IS CANCELLED FOR
  THE CHRISTINA RIVER AT COOCHS BRIDGE.
* AT 12:45 PM THURSDAY THE STAGE WAS 9.2 FEET. 
* FLOOD STAGE IS 10.5 FEET.
* FELL BELOW FLOOD STAGE AT 11:34 AM THURSDAY.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO 5.2 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    9.19  THU 1 PM     CRESTED AND FALLING 

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 12, 6:45 AM EST	Areal Flood Advisory	PHI	Sussex	350 days
Jan 12, 1:19 PM EST	Coastal Flood Warning	PHI	New Castle	73 min

Nearby

River Flood Warnings in Delaware, 2012 Every river flood warning in 2012

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.