Alert archive / New Jersey / River Flood Warnings in 2009

River Flood Warning 27, NWS Philadelphia/Mount Holly

December 9, 2009Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Dec 9, 2009, 10:48 AM EST for Somerset County, New Jersey. It took effect at Dec 9, 2009, 7:00 PM EST. It was in force for 22 hr.

The area

The counties it named.

The facts

Issued
Dec 9, 2009, 10:48 AM EST (15:48 UTC)
In effect from
Dec 9, 2009, 7:00 PM EST
Expired
Dec 10, 2009, 5:23 PM EST
In force
22 hr
Issued by
NWS Philadelphia/Mount Holly
Flood severity
Moderate

County Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 71 km from the middle of the area, began a volume at 15:47 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 Millstone River at Blackwells Mills (BKWN4). The gauge peaked at 10.30 ft at Dec 10, 2009, 5:00 AM EST.

actionminormoderate51012/0912/1012/11
Action stage
7 ft
Minor stage
9 ft
Moderate stage
10 ft
Major stage
15 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 01402000, 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 091548
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1048 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... 

  MILLSTONE RIVER AT BLACKWELLS MILLS AFFECTING SOMERSET COUNTY

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC035-092148-
/O.NEW.KPHI.FL.W.0027.091209T2315Z-091211T1115Z/
/BKWN4.2.ER.091209T2315Z.091210T1200Z.091211T0515Z.NO/
1048 AM EST WED DEC 09 2009

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE MILLSTONE RIVER AT BLACKWELLS MILLS.
* FROM THIS EVENING TO FRIDAY MORNING...OR UNTIL THE WARNING IS 
  CANCELLED.
* AT 10:15 AM WEDNESDAY THE STAGE WAS 6.1 FEET. 
* MODERATE FLOODING IS FORECAST. 
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...RISE ABOVE FLOOD STAGE BY THIS EVENING AND CONTINUE TO RISE
  TO NEAR 10.5 FEET BY TOMORROW MORNING. THE RIVER WILL FALL BELOW FLOOD
  STAGE BY EARLY FRIDAY MORNING.
* IMPACT...AT 10.0 FEET...THE D&R CANAL IS FLOODED BY THE MILLSTONE RIVER

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

MILLSTONE RIVER
  BLACKWELLS MILL  9.0    6.07  WED 10 AM   10.5  THU 7 AM 

&&
5 follow-up statements
000 
WGUS81 KPHI 092218
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
518 PM EST WED DEC 09 2009

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN NEW JERSEY...
 
  MILLSTONE RIVER AT BLACKWELLS MILLS AFFECTING SOMERSET COUNTY 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC035-100818-
/O.EXT.KPHI.FL.W.0027.091210T0000Z-091211T0800Z/
/BKWN4.2.ER.091210T0000Z.091210T1200Z.091211T0200Z.NO/
518 PM EST WED DEC 09 2009

THE FLOOD WARNING CONTINUES FOR 
  THE MILLSTONE RIVER AT BLACKWELLS MILLS.
* UNTIL LATE THURSDAY NIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT 4:15 PM WEDNESDAY THE STAGE WAS 8.1 FEET. 
* MODERATE FLOODING IS FORECAST. 
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...RISE TO NEAR 10.0 FEET BY TOMORROW MORNING. FALL BELOW FLOOD
  STAGE BY TOMORROW EVENING.
* IMPACT...AT 10.0 FEET...THE D&R CANAL IS FLOODED BY THE MILLSTONE RIVER

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

MILLSTONE RIVER
  BLACKWELLS MILL  9.0    8.08  WED 4 PM    10.0  THU 7 AM 

&&
000 
WGUS81 KPHI 100146
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
846 PM EST WED DEC 09 2009

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN NEW JERSEY...
 
  MILLSTONE RIVER AT BLACKWELLS MILLS AFFECTING SOMERSET COUNTY 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC035-101146-
/O.EXT.KPHI.FL.W.0027.000000T0000Z-091211T0640Z/
/BKWN4.2.ER.091210T0012Z.091210T1200Z.091211T0040Z.NO/
846 PM EST WED DEC 09 2009

THE FLOOD WARNING CONTINUES FOR 
  THE MILLSTONE RIVER AT BLACKWELLS MILLS.
* UNTIL LATE THURSDAY NIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT 8:30 PM WEDNESDAY THE STAGE WAS 9.3 FEET. 
* MINOR FLOODING IS OCCURRING AND MODERATE FLOODING IS FORECAST.
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 10.0 FEET BY 
  TOMORROW MORNING. THE RIVER WILL FALL BELOW FLOOD STAGE TOMORROW 
  EVENING.
* IMPACT...AT 10.0 FEET...THE D&R CANAL IS FLOODED BY THE MILLSTONE RIVER

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

MILLSTONE RIVER
  BLACKWELLS MILL  9.0    9.28  WED 8 PM    10.0  THU 7 AM 

&&
000 
WGUS81 KPHI 100805
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
305 AM EST THU DEC 10 2009

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN NEW JERSEY...
 
  MILLSTONE RIVER AT BLACKWELLS MILLS AFFECTING SOMERSET COUNTY 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC035-101805-
/O.EXT.KPHI.FL.W.0027.000000T0000Z-091211T0800Z/
/BKWN4.2.ER.091210T0012Z.091210T1200Z.091211T0200Z.NO/
305 AM EST THU DEC 10 2009

THE FLOOD WARNING CONTINUES FOR 
  THE MILLSTONE RIVER AT BLACKWELLS MILLS.
* UNTIL LATE TONIGHT...OR UNTIL THE WARNING IS CANCELLED.
* AT  2:45 AM THURSDAY THE STAGE WAS 10.2 FEET. 
* MODERATE FLOODING IS OCCURRING AND MODERATE FLOODING IS FORECAST.
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 10.5 FEET THIS 
  MORNING. THE RIVER WILL FALL BELOW FLOOD STAGE TONIGHT.
* IMPACT...AT 10.0 FEET...THE D&R CANAL IS FLOODED BY THE MILLSTONE RIVER

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

MILLSTONE RIVER
  BLACKWELLS MILL  9.0   10.21  THU 3 AM    10.5  THU 7 AM 

&&
000 
WGUS81 KPHI 101517
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1017 AM EST THU DEC 10 2009

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN NEW JERSEY...
 
  MILLSTONE RIVER AT BLACKWELLS MILLS AFFECTING SOMERSET COUNTY 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC035-110117-
/O.EXT.KPHI.FL.W.0027.000000T0000Z-091211T0400Z/
/BKWN4.2.ER.091210T0012Z.091210T1015Z.091210T2200Z.NO/
1017 AM EST THU DEC 10 2009

THE FLOOD WARNING CONTINUES FOR 
  THE MILLSTONE RIVER AT BLACKWELLS MILLS.
* UNTIL THIS EVENING...OR UNTIL THE WARNING IS CANCELLED.
* AT 10:00 AM THURSDAY THE STAGE WAS 9.9 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE RIVER WILL FALL BELOW FLOOD STAGE THIS AFTERNOON.
* IMPACT...AT 10.0 FEET...THE D&R CANAL IS FLOODED BY THE MILLSTONE RIVER

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

MILLSTONE RIVER
  BLACKWELLS MILL  9.0    9.91  THU 10 AM    9.6  THU 1 PM 

&&
000 
WGUS81 KPHI 102223
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
523 PM EST THU DEC 10 2009

...THE FLOOD WARNING IS CANCELLED FOR THE FOLLOWING RIVERS IN NEW 
JERSEY...
 
  MILLSTONE RIVER AT BLACKWELLS MILLS AFFECTING SOMERSET COUNTY
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEPARATE RVS STATEMENT WILL SOON BE ISSUED FOR FLOODING ON
THE MILLSTONE RIVER AT THE GRIGGSTOWN CAUSEWAY. 

&&

NJC035-102253-
/O.CAN.KPHI.FL.W.0027.000000T0000Z-091211T0400Z/
/BKWN4.2.ER.091210T0012Z.091210T1015Z.091210T2136Z.NO/
523 PM EST THU DEC 10 2009

* AT  5:15 PM THURSDAY THE STAGE WAS 8.9 FEET. 
* NO FLOODING IS CURRENTLY FORECAST.
* FLOOD STAGE IS 9.0 FEET. 
* IMPACT...AT 9.0 FEET...FLOOD STAGE REACHED WITH FLOODING NOW ALONG 
  RIVER ROAD IN BLACKWELLS MILLS AND S. RIVER STREET IN MILLSTONE

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

MILLSTONE RIVER
  BLACKWELLS MILL  9.0    8.89  THU 5 PM      CRESTED AT 10.3 FEET
                                              AT 5 AM THIS MORNING, 
                                              NOW 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, 8:11 AM ESTRiver Flood WarningPHIMercer8 hr
Dec 9, 9:58 AM ESTAreal Flood AdvisoryPHIWarren3 hr
Dec 9, 10:35 AM ESTCoastal Flood AdvisoryPHIMonmouth, Ocean3 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.