Alert archive / New Jersey / River Flood Warnings in 2009

River Flood Warning 21, NWS Philadelphia/Mount Holly

December 9, 2009Mercer County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Dec 9, 2009, 8:11 AM EST for Mercer County, New Jersey. It took effect at Dec 9, 2009, 11:26 AM EST. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Dec 9, 2009, 8:11 AM EST (13:11 UTC)
In effect from
Dec 9, 2009, 11:26 AM EST
Expired
Dec 9, 2009, 4:13 PM EST
In force
5 hr
Issued by
NWS Philadelphia/Mount Holly
Flood severity
Minor

County Mercer County, NJ

The radar

The Philadelphia radar (KDIX), 45 km from the middle of the area, began a volume at 13:11 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 Assunpink Creek at Trenton (TACN4). The gauge peaked at 8.82 ft at Dec 9, 2009, 2:00 PM EST.

actionminormoderate4681012/0912/10
Action stage
7 ft
Minor stage
8.5 ft
Moderate stage
9.5 ft
Major stage
11 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01464000, 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 091311
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
811 AM EST WED DEC 09 2009

...THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A FLOOD 
WARNING FOR THE FOLLOWING RIVERS IN NEW JERSEY... 

  ASSUNPINK CREEK AT TRENTON AFFECTING MERCER COUNTY
PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE 
WATER MAY BE DEEPER THAN YOU THINK.

&&

NJC021-091911-
/O.NEW.KPHI.FL.W.0021.091209T1500Z-091210T0440Z/
/TACN4.1.ER.091209T1500Z.091209T1800Z.091209T2240Z.NO/
811 AM EST WED DEC 09 2009

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE ASSUNPINK CREEK AT TRENTON.
* UNTIL THIS EVENING...OR UNTIL THE WARNING IS CANCELLED.
* AT 7:15 AM WEDNESDAY THE STAGE WAS 5.8 FEET. 
* MINOR FLOODING IS FORECAST. 
* FLOOD STAGE IS 8.5 FEET. 
* FORECAST...RISE ABOVE FLOOD STAGE LATE THIS MORNING AND CONTINUE TO
  RISE TO NEAR 9.2 FEET EARLY THIS AFTERNOON. THE RIVER WILL FALL BELOW 
  FLOOD STAGE BY LATE THIS AFTERNOON.
* IMPACT...AT 10.0 FEET...MULBERRY STREET FLOODS

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

ASSUNPINK CREEK
  TRENTON          8.5    5.85  WED 7 AM     9.2  WED 1 PM 

&&
2 follow-up statements
000 
WGUS81 KPHI 091408
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
908 AM EST WED DEC 09 2009

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN NEW JERSEY...
 
  ASSUNPINK CREEK AT TRENTON AFFECTING MERCER COUNTY 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE 
WATER MAY BE DEEPER THAN YOU THINK.

&&

NJC021-100008-
/O.EXT.KPHI.FL.W.0021.091209T1626Z-091210T0400Z/
/TACN4.1.ER.091209T1626Z.091209T1800Z.091209T2200Z.NO/
908 AM EST WED DEC 09 2009

THE FLOOD WARNING CONTINUES FOR 
  THE ASSUNPINK CREEK AT TRENTON.
* UNTIL THIS EVENING...OR UNTIL THE WARNING IS CANCELLED.
* AT 8:30 AM WEDNESDAY THE STAGE WAS 7.2 FEET. 
* MINOR FLOODING IS FORECAST. 
* FLOOD STAGE IS 8.5 FEET. 
* FORECAST...RISE ABOVE FLOOD STAGE LATE THIS MORNING AND CONTINUE TO
  RISE TO NEAR 9.2 FEET THIS AFTERNOON. THE RIVER WILL FALL BELOW 
  FLOOD STAGE BY LATE THIS AFTERNOON.
* IMPACT...AT 10.0 FEET...MULBERRY STREET FLOODS

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

ASSUNPINK CREEK
  TRENTON          8.5    7.18  WED 8 AM     9.2  WED 1 PM 

&&
000 
WGUS81 KPHI 092113
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
413 PM EST WED DEC 09 2009

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN NEW 
JERSEY...
 
  ASSUNPINK CREEK AT TRENTON AFFECTING MERCER COUNTY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

SAFETY MESSAGE...DO NOT ATTEMPT TO DRIVE THROUGH FLOODED AREAS. THE 
WATER MAY BE DEEPER THAN YOU THINK.

&&

NJC021-092143-
/O.CAN.KPHI.FL.W.0021.000000T0000Z-091210T0400Z/
/TACN4.1.ER.091209T1645Z.091209T1900Z.091209T2017Z.NO/
413 PM EST WED DEC 09 2009

* AT 4:00 PM WEDNESDAY THE STAGE WAS 8.1 FEET. 
* NO FLOODING IS CURRENTLY FORECAST.
* FLOOD STAGE IS 8.5 FEET. 
* IMPACT...AT 10.0 FEET...MULBERRY STREET FLOODS

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

ASSUNPINK CREEK
  TRENTON          8.5    8.09  WED 4 PM      FALLING 

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 9, 5:04 AM ESTWind AdvisoryPHIAtlantic, Cape May4 hr
Dec 9, 6:53 AM ESTAreal Flood WarningPHIBurlington, Camden, Gloucester, Salem8 hr
Dec 9, 7:01 AM ESTAreal Flood AdvisoryPHIAtlantic, Burlington, Cape May, Cumberland4 hr
Dec 9, 7:29 AM ESTAreal Flood WarningPHIHunterdon, Mercer, Middlesex, Somerset8 hr
Dec 9, 8:02 AM ESTAreal Flood AdvisoryPHIMonmouth, Ocean4 hr
Dec 9, 9:58 AM ESTAreal Flood AdvisoryPHIWarren3 hr
Dec 9, 10:35 AM ESTCoastal Flood AdvisoryPHIMonmouth, Ocean3 hr
Dec 9, 10:48 AM ESTRiver Flood WarningPHISomerset31 hr
Dec 9, 12:00 PM ESTWind AdvisoryPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more33 hr
Dec 9, 2:26 PM ESTCoastal Flood AdvisoryPHIBurlington, Camden, Gloucester, Salem7 hr
Dec 9, 2:55 PM ESTAreal Flood WarningPHIBurlington, Camden, Gloucester, Salem7 hr
Dec 9, 3:42 PM ESTAreal Flood WarningPHIHunterdon, Mercer, Middlesex, Somerset16 hr

Nearby

River Flood Warnings in New Jersey, 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.