Alert archive / New Jersey / River Flood Warnings in 2011

River Flood Warning 18, NWS Philadelphia/Mount Holly

March 7, 2011Somerset County, New Jersey

NWS Philadelphia/Mount Holly issued this river flood warning at Mar 7, 2011, 9:28 AM EST for Somerset County, New Jersey. It took effect at Mar 7, 2011, 10:00 AM EST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued: Mar 7, 2011, 9:28 AM EST (14:28 UTC)
In effect from: Mar 7, 2011, 10:00 AM EST
Expired: Mar 8, 2011, 4:27 AM EST
In force: 18 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 14:30 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 9.88 ft at Mar 7, 2011, 5:00 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.

091 
WGUS41 KPHI 071428
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
928 AM EST MON MAR 7 2011

...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.

&&

NJC035-072028-
/O.NEW.KPHI.FL.W.0018.110307T1500Z-110308T1617Z/
/BKWN4.1.ER.110307T1500Z.110308T0000Z.110308T1017Z.NO/
928 AM EST MON MAR 7 2011

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY NJ HAS ISSUED A 

* FLOOD WARNING FOR 
  THE MILLSTONE RIVER AT BLACKWELLS MILLS.
* UNTIL TUESDAY MORNING...OR UNTIL THE WARNING IS CANCELLED.
* AT  8:15 AM MONDAY THE STAGE WAS 8.8 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* MINOR FLOODING IS FORECAST. 
* FORECAST...RISE ABOVE FLOOD STAGE BY LATE THIS MORNING AND CONTINUE TO
  RISE TO NEAR 9.7 FEET BY THIS EVENING. THE RIVER WILL FALL BELOW FLOOD
  STAGE BY EARLY TOMORROW.
* 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    8.77  MON 8 AM     9.7  MON 7 PM 

&&

3 follow-up statements

029 
WGUS41 KPHI 071944
FLWPHI
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
244 PM EST MON MAR 7 2011

...FORECAST FLOODING CHANGED FROM MINOR TO MODERATE SEVERITY 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.

&&

NJC035-080144-
/O.EXT.KPHI.FL.W.0018.000000T0000Z-110308T1800Z/
/BKWN4.2.ER.110307T1430Z.110308T0000Z.110308T1200Z.NO/
244 PM EST MON MAR 7 2011

...FORECAST FLOODING INCREASED FROM MINOR TO MODERATE SEVERITY...
THE FLOOD WARNING CONTINUES FOR 
  THE MILLSTONE RIVER AT BLACKWELLS MILLS.
* UNTIL TUESDAY AFTERNOON...OR UNTIL THE WARNING IS CANCELLED.
* AT  2:30 PM MONDAY THE STAGE WAS 9.7 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* MINOR FLOODING IS OCCURRING AND MODERATE FLOODING IS FORECAST.
* FORECAST...THE RIVER WILL CONTINUE RISING TO NEAR 10.2 FEET BY THIS 
  EVENING. THE RIVER WILL FALL BELOW FLOOD STAGE TOMORROW 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    9.73  MON 2 PM    10.2  MON 7 PM 

&&

100 
WGUS81 KPHI 080143
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
843 PM EST MON MAR 7 2011

...THE FLOOD WARNING CONTINUES FOR THE FOLLOWING RIVERS IN NEW JERSEY...
 
  MILLSTONE RIVER INCLUDING 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.

&&

NJC035-081143-
/O.EXT.KPHI.FL.W.0018.000000T0000Z-110308T1700Z/
/BKWN4.1.ER.110307T1430Z.110307T2315Z.110308T1100Z.NO/
843 PM EST MON MAR 7 2011

THE FLOOD WARNING CONTINUES FOR
  THE MILLSTONE RIVER AT BLACKWELLS MILLS. 
* UNTIL TUESDAY AT NOON...OR UNTIL THE WARNING IS CANCELLED.
* AT 8:15 PM MONDAY THE STAGE WAS 9.8 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* MINOR FLOODING IS OCCURRING AND MINOR FLOODING IS FORECAST.
* FORECAST...THE RIVER HAS CRESTED AND WILL CONTINUE TO FALL TO BELOW FLOOD 
  STAGE TUESDAY MORNING.
* IMPACT...AT 10.0 FEET...THE D&R CANAL IS FLOODED BY THE MILLSTONE RIVER.
* FLOODING ALSO CONTINUES ON THE MILLSTONE RIVER AT GRIGGSTOWN. THE GRIGGSTOWN 
  CAUSEWAY IS CLOSED.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

MILLSTONE RIVER
  BLACKWELLS MILL  9.0    9.78  MON 8 PM     CRESTED 
  GRIGGSTOWN      10.0   12.68  MON 8 PM     CRESTED

&&

089 
WGUS81 KPHI 080927
FLSPHI
FLOOD STATEMENT 
NATIONAL WEATHER SERVICE MT HOLLY, NEW JERSEY
427 AM EST TUE MAR 8 2011

...THE FLOOD WARNING IS CANCELLED 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.

&&

NJC035-080957-
/O.CAN.KPHI.FL.W.0018.000000T0000Z-110308T1700Z/
/BKWN4.1.ER.110307T1430Z.110307T2315Z.110308T0837Z.NO/
427 AM EST TUE MAR 8 2011

THE FLOOD WARNING IS CANCELLED FOR
  THE MILLSTONE RIVER AT BLACKWELLS MILLS.
* AT  4:15 AM TUESDAY THE STAGE WAS 8.9 FEET. 
* FLOOD STAGE IS 9.0 FEET. 
* FELL BELOW FLOOD STAGE AT 3:37 AM TUESDAY.
* FORECAST...THE RIVER WILL CONTINUE TO FALL TO 5.1 FEET BY
  WEDNESDAY MORNING.

$$

                   FLD      OBSERVED          FORECAST
 LOCATION          STG    STG  DAY TIME       CREST

MILLSTONE RIVER
  BLACKWELLS MILL  9.0    8.90  TUE 4 AM      CRESTED 

&&

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 6, 7:03 PM EST	Areal Flood Advisory	PHI	Burlington	4 hr
Mar 6, 7:08 PM EST	Special Weather Statement	PHI	Middlesex, Somerset	67 min
Mar 6, 7:11 PM EST	Special Weather Statement	PHI	Atlantic, Burlington, Ocean	64 min
Mar 6, 8:02 PM EST	Special Weather Statement	PHI	Middlesex, Monmouth, Ocean	58 min
Mar 6, 8:38 PM EST	Special Weather Statement	PHI	Monmouth	52 min
Mar 6, 9:30 PM EST	Areal Flood Advisory	PHI	Burlington, Camden, Gloucester, Mercer, Salem	7 hr
Mar 6, 10:21 PM EST	Areal Flood Warning	PHI	Somerset	24 hr
Mar 6, 10:31 PM EST	Areal Flood Advisory	PHI	Burlington, Middlesex, Monmouth, Ocean	6 hr
Mar 6, 10:40 PM EST	River Flood Warning	PHI	Morris, Passaic	46 hr
Mar 6, 10:44 PM EST	River Flood Warning	PHI	Bergen, Morris, Passaic	39 hr
Mar 6, 10:50 PM EST	River Flood Warning	PHI	Morris, Passaic	43 hr
Mar 6, 11:45 PM EST	Areal Flood Advisory	PHI	Sussex, Warren	6 hr
Mar 7, 1:01 AM EST	River Flood Warning	PHI	Morris	43 hr
Mar 7, 1:01 AM EST	River Flood Warning	PHI	Morris	7 days
Mar 7, 4:03 AM EST	River Flood Warning	PHI	Somerset	6 hr
Mar 7, 4:03 AM EST	River Flood Warning	PHI	Middlesex, Somerset	17 hr
Mar 7, 4:03 AM EST	River Flood Warning	PHI	Middlesex, Somerset	17 hr
Mar 7, 4:10 AM EST	River Flood Warning	PHI	Essex, Morris, Passaic	41 days
Mar 7, 4:10 AM EST	River Flood Warning	PHI	Essex, Passaic	41 days
Mar 7, 4:46 AM EST	Areal Flood Warning	PHI	Sussex, Warren	14 hr
Mar 7, 8:52 AM EST	River Flood Warning	PHI	Hunterdon, Warren	17 hr
Mar 7, 8:52 AM EST	River Flood Warning	PHI	Hunterdon, Mercer	17 hr
Mar 7, 8:55 AM EST	River Flood Warning	PHI	Sussex, Warren	11 hr
Mar 7, 6:19 PM EST	Areal Flood Warning	PHI	Sussex, Warren	5 hr

Nearby

River Flood Warnings in New Jersey, 2011 Every river flood warning in 2011

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.