Alert archive / New Jersey / Coastal Flood Statements in 2011

Coastal Flood Statement 42, NWS Philadelphia/Mount Holly

September 30, 2011Delaware County, Philadelphia County, Pennsylvania; Burlington County, Camden County, Gloucester County, New Jersey

NWS Philadelphia/Mount Holly issued this coastal flood statement at Sep 30, 2011, 9:24 PM EDT for Delaware County, Philadelphia County, Pennsylvania; Burlington County, Camden County, Gloucester County, New Jersey. It took effect at Oct 1, 2011, 3:00 AM EDT. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Sep 30, 2011, 9:24 PM EDT (01:24 UTC)
In effect from
Oct 1, 2011, 3:00 AM EDT
Expired
Oct 1, 2011, 7:00 AM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Delaware County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 56 km from the middle of the area, began a volume at 01:26 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 nearest sounding before it

Brookhaven, NY (KOKX), launched 00:00Z, 1.4 hours before the alert went out and 217 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Brookhaven, NY at 00:00Z on 2011-10-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 532 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Brookhaven, NY at 00:00Z on 2011-10-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 117 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
532 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
917 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
117 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.4
Supercell composite
4.8

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

550 
WHUS41 KPHI 010124
CFWPHI

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
924 PM EDT FRI SEP 30 2011

MDZ012-015-019-020-010230-
/O.CAN.KPHI.CF.Y.0051.000000T0000Z-111001T0300Z/
KENT MD-QUEEN ANNES-TALBOT-CAROLINE-
924 PM EDT FRI SEP 30 2011

...COASTAL FLOOD ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS CANCELLED THE
COASTAL FLOOD ADVISORY. 

THE HIGH TIDE CYCLE HAS PASSED AT CAMBRIDGE...AND IT APPEARS AS
THOUGH THE HIGH TIDE CYCLE AT TOLCHESTER BEACH WILL NOT REACH THE
MINOR TIDAL FLOODING BENCHMARK.

$$

NJZ017>019-PAZ070-071-011100-
/O.NEW.KPHI.CF.S.0042.111001T0700Z-111001T1100Z/
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
924 PM EDT FRI SEP 30 2011

* LOCATION...TIDAL PORTION OF THE DELAWARE RIVER.

* COASTAL FLOODING...SPOTTY MINOR TIDAL FLOODING IS POSSIBLE
  AROUND THE TIME OF HIGH TIDE EARLY SATURDAY MORNING.

* TIMING...HIGH TIDE OCCURS AROUND 500 AM IN PHILADELPHIA AND
  AROUND 600 AM ACROSS PORTIONS OF BURLINGTON COUNTY.

* IMPACTS...ROADWAY FLOODING IS POSSIBLE IN LOCATIONS MOST
  SUSCEPTIBLE TO TIDAL FLOODING.

$$

HAYES
1 follow-up statement
632 
WHUS41 KPHI 010801
CFWPHI

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
401 AM EDT SAT OCT 1 2011

NJZ017>019-PAZ070-071-011615-
/O.NEW.KPHI.CF.Y.0052.111001T1900Z-111002T0000Z/
/O.CON.KPHI.CF.S.0042.000000T0000Z-111001T1100Z/
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
401 AM EDT SAT OCT 1 2011

...COASTAL FLOOD ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
8 PM EDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A COASTAL
FLOOD ADVISORY...WHICH IS IN EFFECT FROM 3 PM THIS AFTERNOON TO
8 PM EDT THIS EVENING. 

* LOCATION...TIDAL PORTION OF THE DELAWARE RIVER AND TIDAL
  SECTIONS OF SOME TRIBUTARIES.

* COASTAL FLOODING...SPOTTY MINOR TIDAL FLOODING IS POSSIBLE
  AROUND THE TIME OF HIGH TIDE EARLY SATURDAY MORNING WITH MORE
  WIDESPREAD MINOR TIDAL FLOODING WITH THE LATE AFTERNOON AND
  EARLY EVENING HIGH TIDE. 

* TIMING...HIGH TIDE OCCURS AROUND 500 AM IN PHILADELPHIA AND
  AROUND 600 AM ACROSS PORTIONS OF BURLINGTON COUNTY. THE
  SUBSEQUENT HIGH TIDE WILL OCCUR AROUND 530 PM IN PHILADELPHIA
  AND AROUND 630 PM IN BURLINGTON COUNTY.

* IMPACTS...ROADWAY FLOODING IS LIKELY IN LOCATIONS MOST
  SUSCEPTIBLE TO TIDAL FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT MINOR TIDAL FLOODING IS
ANTICIPATED. MINOR TIDAL FLOODING OFTEN RESULTS IN SOME ROADS
CLOSURES. USUALLY...THE MOST VULNERABLE ROADWAYS WILL FLOOD.

DO NOT LEAVE YOUR VEHICLE AT A LOCATION THAT IS PRONE TO TIDAL
FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOOD WATERS. THE
WATER MAY BE DEEPER THAN YOU THINK IT IS. YOU WILL BE PUTTING
YOURSELF IN DANGER AND YOUR VEHICLE MAY BE DAMAGED...LEADING TO
COSTLY REPAIR.

FOR A LIST OF THE IMPACT OF DIFFERENT TIDE HEIGHTS IN YOUR
COUNTY PLEASE GO TO WWW.WEATHER.GOV/PHI/TIDES.HTM (ALL IN LOWER
CASE).

&&

$$

DEZ002>004-NJZ012>014-020>027-011615-
/O.NEW.KPHI.CF.Y.0052.111001T1400Z-111001T1900Z/
KENT-INLAND SUSSEX-DELAWARE BEACHES-MIDDLESEX-WESTERN MONMOUTH-
EASTERN MONMOUTH-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-
401 AM EDT SAT OCT 1 2011

...COASTAL FLOOD ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO
3 PM EDT THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A COASTAL
FLOOD ADVISORY...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO
3 PM EDT THIS AFTERNOON. 

* LOCATION...DELAWARE AND RARITAN BAYS AS WELL AS COASTAL AREAS
  AND BACK BAYS NEAR THE ATLANTIC OCEAN.

* COASTAL FLOODING...AREAS OF MINOR TIDAL FLOODING ARE EXPECTED.

* TIMING...HIGH TIDE IS DURING THE LATE MORNING ALONG THE OCEAN
  FRONT AND RARITAN BAY AND DURING THE EARLY AFTERNOON IN THE BACK
  BAYS AND DELAWARE BAY. 
 
* IMPACTS...ROADWAY FLOODING IS PROBABLE IN LOCATIONS MOST
  SUSCEPTIBLE TO TIDAL FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT MINOR TIDAL FLOODING IS
ANTICIPATED. MINOR TIDAL FLOODING OFTEN RESULTS IN SOME ROADS
CLOSURES. USUALLY...THE MOST VULNERABLE ROADWAYS WILL FLOOD.

DO NOT LEAVE YOUR VEHICLE AT A LOCATION THAT IS PRONE TO TIDAL
FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOOD WATERS. THE
WATER MAY BE DEEPER THAN YOU THINK IT IS. YOU WILL BE PUTTING
YOURSELF IN DANGER AND YOUR VEHICLE MAY BE DAMAGED...LEADING TO
COSTLY REPAIR.

FOR A LIST OF THE IMPACT OF DIFFERENT TIDE HEIGHTS IN YOUR
COUNTY PLEASE GO TO WWW.WEATHER.GOV/PHI/TIDES.HTM (ALL IN LOWER
CASE).

&&

$$

DEZ001-NJZ015-016-PAZ069-011615-
/O.NEW.KPHI.CF.Y.0052.111001T1900Z-111002T0000Z/
NEW CASTLE-MERCER-SALEM-BUCKS-
401 AM EDT SAT OCT 1 2011

...COASTAL FLOOD ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO
8 PM EDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A COASTAL
FLOOD ADVISORY...WHICH IS IN EFFECT FROM 3 PM THIS AFTERNOON TO
8 PM EDT THIS EVENING. 

* LOCATION...TIDAL SECTIONS OF THE DELAWARE RIVER AS WELL AS SOME
  OF THE TIDAL SECTIONS OF ITS TRIBUTARIES.

* COASTAL FLOODING...WIDESPREAD MINOR TIDAL FLOODING IS EXPECTED.

* TIMING...HIGH TIDE WILL WORK ITS WAY UP THE DELAWARE RIVER FROM
  LATE AFTERNOON IN SALEM AND NEW CASTLE COUNTY INTO THE EVENING
  IN BUCKS AND MERCER COUNTIES.
 
* IMPACTS...IMPACTS...ROADWAY AND PARKING LOT FLOODING IS LIKELY
  IN LOCATIONS MOST SUSCEPTIBLE TO TIDAL FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT MINOR TIDAL FLOODING IS
ANTICIPATED. MINOR TIDAL FLOODING OFTEN RESULTS IN SOME ROADS
CLOSURES. USUALLY...THE MOST VULNERABLE ROADWAYS WILL FLOOD.

DO NOT LEAVE YOUR VEHICLE AT A LOCATION THAT IS PRONE TO TIDAL
FLOODING. DO NOT DRIVE YOUR VEHICLE THROUGH FLOOD WATERS. THE
WATER MAY BE DEEPER THAN YOU THINK IT IS. YOU WILL BE PUTTING
YOURSELF IN DANGER AND YOUR VEHICLE MAY BE DAMAGED...LEADING TO
COSTLY REPAIR.

FOR A LIST OF THE IMPACT OF DIFFERENT TIDE HEIGHTS IN YOUR
COUNTY PLEASE GO TO WWW.WEATHER.GOV/PHI/TIDES.HTM (ALL IN LOWER
CASE).

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 1, 4:01 AM EDTCoastal Flood AdvisoryPHIDelaware, Philadelphia16 hr
Sep 30, 8:14 PM EDTSpecial Marine WarningPHI91 min
Sep 30, 8:27 PM EDTSpecial Marine WarningPHI18 min
Sep 30, 10:14 PM EDTSpecial Marine WarningPHI91 min
Oct 1, 3:47 PM EDTSmall Craft Advisory for Hazardous SeasPHI36 hr

Nearby

Coastal Flood Statements in New Jersey, 2011Coastal Flood Statements in Pennsylvania, 2011Every coastal flood statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.