Alert archive / New Jersey / River Flood Warnings in 2009

River Flood Warning 39, NWS Philadelphia/Mount Holly

December 26, 2009Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Dec 26, 2009, 8:34 PM EST for Somerset County, New Jersey. It took effect at Dec 27, 2009, 2:28 AM EST. It was in force for 33 hr.

The area

The counties it named.

The facts

Issued: Dec 26, 2009, 8:34 PM EST (01:34 UTC)
In effect from: Dec 27, 2009, 2:28 AM EST
Expired: Dec 28, 2009, 11:18 AM EST
In force: 33 hr
Issued by: NWS Philadelphia/Mount Holly
Flood severity: Minor

County Somerset County, NJ

The radar

The Philadelphia radar (KDIX), 71 km from the middle of the area, began a volume at 01:37 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 Millstone River at Blackwells Mills (BKWN4). The gauge peaked at 11.40 ft at Dec 27, 2009, 2:00 PM EST.

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 270134
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
834 PM EST SAT DEC 26 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.

&&

NJC035-270734-
/O.NEW.KPHI.FL.W.0039.091227T1040Z-091228T1030Z/
/BKWN4.1.ER.091227T1040Z.091227T1800Z.091228T0430Z.NO/
834 PM EST SAT DEC 26 2009

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE MILLSTONE RIVER AT BLACKWELLS MILLS.
* FROM LATE TONIGHT TO LATE SUNDAY NIGHT...OR UNTIL THE WARNING IS 
  CANCELLED.
* AT 8:15 PM SATURDAY THE STAGE WAS 6.9 FEET. 
* MINOR FLOODING IS FORECAST. 
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...RISE ABOVE FLOOD STAGE BY EARLY TOMORROW AND CONTINUE TO 
  RISE TO NEAR 9.5 FEET BY EARLY TOMORROW AFTERNOON. THE RIVER WILL FALL
  BELOW FLOOD STAGE BY LATE TOMORROW EVENING.
* 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    6.88  SAT 8 PM     9.5  SUN 1 PM 

&&

6 follow-up statements

000 
WGUS41 KPHI 270720
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
220 AM EST SUN DEC 27 2009

...FORECAST FLOODING CHANGED FROM MINOR TO MODERATE SEVERITY FOR THE 
MILLSTONE RIVER AT BLACKWELLS MILLS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC035-271320-
/O.EXT.KPHI.FL.W.0039.091227T0728Z-091228T2040Z/
/BKWN4.2.ER.091227T0728Z.091227T1800Z.091228T1440Z.NO/
220 AM EST SUN DEC 27 2009

...FORECAST FLOODING INCREASED FROM MINOR TO MODERATE SEVERITY...
THE FLOOD WARNING CONTINUES FOR 
  THE MILLSTONE RIVER AT BLACKWELLS MILLS.
* UNTIL MONDAY AFTERNOON...OR UNTIL THE WARNING IS CANCELLED.
* AT 1:15 AM, THE STAGE WAS 8.7 FEET AND RISING. 
* MODERATE FLOODING IS FORECAST. 
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE RIVER LEVEL WILL RISE ABOVE FLOOD STAGE EARLY
  THIS MORNING AND CONTINUE RISING TO NEAR 10.5 FEET BY THIS 
  EVENING. THE RIVER SHOULD FALL BACK BELOW FLOOD STAGE ON MONDAY
  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
  GRIGGSTOWN      10.0   13.88  SUN 145 AM 
  BLACKWELLS MILL  9.0    8.73  SUN 115 AM    10.5  SUN 1 PM 
  WESTON                  8.85  SUN 145 AM

&&

IOVINO

000 
WGUS81 KPHI 271125
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
625 AM EST SUN DEC 27 2009

...THE FLOOD WARNING CONTINUES FOR THE MILLSTONE RIVER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC035-272125-
/O.EXT.KPHI.FL.W.0039.000000T0000Z-091228T2100Z/
/BKWN4.2.ER.091227T0700Z.091227T1800Z.091228T1500Z.NO/
625 AM EST SUN DEC 27 2009

THE FLOOD WARNING CONTINUES FOR 
  THE MILLSTONE RIVER AT BLACKWELLS MILLS.
* UNTIL MONDAY AFTERNOON...OR UNTIL THE WARNING IS CANCELLED.
* AT 6:15 AM, THE STAGE WAS 10.45 FEET AND RISING. 
* MODERATE FLOODING IS OCCURRING AND MODERATE FLOODING IS FORECAST.
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 10.8 FEET THIS
  AFTERNOON. THE RIVER SHOULD FALL BACK BELOW FLOOD STAGE LATE ON
  MONDAY 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
  GRIGGSTOWN      10.0   14.76  SUN 615 AM 
  BLACKWELLS MILL  9.0   10.45  SUN 615 AM    10.8  SUN 1 PM 
  WESTON                 10.25  SUN 545 AM 

&&

IOVINO

000 
WGUS81 KPHI 272023
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
323 PM EST SUN DEC 27 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. DO NOT DRIVE AROUND BARRICADES.

&&

NJC035-280823-
/O.EXT.KPHI.FL.W.0039.000000T0000Z-091228T2136Z/
/BKWN4.2.ER.091227T0700Z.091227T2000Z.091228T1536Z.NO/
323 PM EST SUN DEC 27 2009

THE FLOOD WARNING CONTINUES FOR 
  THE MILLSTONE RIVER AT BLACKWELLS MILLS.
* UNTIL MONDAY AFTERNOON...OR UNTIL THE WARNING IS CANCELLED.
* AT  3:00 PM SUNDAY THE STAGE WAS 11.4 FEET AND CRESTING. 
* MODERATE FLOODING IS OCCURRING AND MODERATE FLOODING IS FORECAST.
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO BELOW FLOOD STAGE BY 
  MONDAY AFTERNOON.
* IMPACT...AT 10.0 FEET...THE D&R CANAL IS FLOODED BY THE MILLSTONE RIVER
  THE GRIGGSTOWN CAUSEWAY IS ALSO CLOSED.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

MILLSTONE RIVER
  GRIGGSTOWN      10.0   14.61  SUN 315 PM    CRESTED AT 14.9 FT AT 1030 AM SUN 
  BLACKWELLS MILL  9.0   11.40  SUN 3 PM      CRESTING NOW
  WESTON          12.4   11.78  SUN 245 PM    CRESTED AT 11.82 FT AT 2 PM SUN

&&

000 
WGUS81 KPHI 280457
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1157 PM EST SUN DEC 27 2009

...THE FLOOD WARNING CONTINUES FOR THE MILLSTONE RIVER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC035-281457-
/O.EXT.KPHI.FL.W.0039.000000T0000Z-091228T2100Z/
/BKWN4.2.ER.091227T0700Z.091227T2000Z.091228T1500Z.NO/
1157 PM EST SUN DEC 27 2009

THE FLOOD WARNING CONTINUES FOR 
  THE MILLSTONE RIVER AT BLACKWELLS MILLS.
* UNTIL MONDAY AFTERNOON...OR UNTIL THE WARNING IS CANCELLED.
* AT 11:15 PM SUNDAY THE STAGE WAS 10.7 FEET. 
* MODERATE FLOODING IS OCCURRING AND MODERATE FLOODING IS FORECAST.
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE RIVER LEVEL WILL CONTINUE FALLING AND IT SHOULD 
  RETURN BACK BELOW FLOOD STAGE ON MONDAY 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
  GRIGGSTOWN      10.0   13.5  SUN 1145 PM    CRESTED 
  BLACKWELLS MILL  9.0   10.7  SUN 1115 PM    CRESTED 
  WESTON                 10.2  SUN 1045 PM    CRESTED 

&&

IOVINO

000 
WGUS81 KPHI 281017
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
517 AM EST MON DEC 28 2009

...THE FLOOD WARNING CONTINUES FOR THE MILLSTONE RIVER...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

NJC035-282017-
/O.CON.KPHI.FL.W.0039.000000T0000Z-091228T2100Z/
/BKWN4.2.ER.091227T0700Z.091227T2000Z.091228T1500Z.NO/
517 AM EST MON DEC 28 2009

THE FLOOD WARNING CONTINUES FOR 
  THE MILLSTONE RIVER AT BLACKWELLS MILLS.
* UNTIL THIS AFTERNOON...OR UNTIL THE WARNING IS CANCELLED.
* AT 5:00 AM, THE STAGE WAS 9.8 FEET AND FALLING. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FLOOD STAGE IS 9.0 FEET. 
* FORECAST...THE RIVER LEVEL WILL CONTINUE FALLING AND IT SHOULD
  BE BACK BELOW FLOOD LATE THIS 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
  GRIGGSTOWN      10.0    12.7  MON 445 AM    CRESTED 
  BLACKWELLS MILL  9.0     9.8  MON 500 AM    CRESTED
  WESTON                   9.2  MON 445 AM    CRESTED

&&

IOVINO

000 
WGUS81 KPHI 281618
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
1118 AM EST MON DEC 28 2009

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

&&

NJC035-281648-
/O.CAN.KPHI.FL.W.0039.000000T0000Z-091228T2100Z/
/BKWN4.2.ER.091227T0700Z.091227T2000Z.091228T1537Z.NO/
1118 AM EST MON DEC 28 2009

* AT 11:05 AM MONDAY THE STAGE WAS 8.9 FEET AND FALLING.
* NO FLOODING IS CURRENTLY FORECAST.
* FLOOD STAGE IS 9.0 FEET. 

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

MILLSTONE RIVER
  BLACKWELLS MILL  9.0    8.93  MON 11 AM    CRESTED 

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 26, 7:10 PM EST	Areal Flood Advisory	PHI	Hunterdon, Mercer, Middlesex, Monmouth, Morris, Somerset	8 hr
Dec 26, 10:12 PM EST	Areal Flood Warning	PHI	Cumberland, Salem	12 hr
Dec 27, 2:36 AM EST	Areal Flood Warning	PHI	Monmouth, Ocean	36 hr
Dec 27, 8:41 AM EST	River Flood Warning	PHI	Middlesex, Somerset	7 hr
Dec 27, 8:41 AM EST	River Flood Warning	PHI	Morris	33 hr
Dec 27, 9:28 AM EST	River Flood Warning	PHI	Morris	11 hr
Dec 27, 9:44 AM EST	Areal Flood Warning	PHI	Atlantic, Cumberland, Salem	48 hr
Dec 27, 11:01 AM EST	River Flood Warning	PHI	Middlesex, Somerset	8 hr
Dec 27, 2:51 PM EST	Gale Watch	PHI		13 hr

Nearby

River Flood Warnings in New Jersey, 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.