Alert archive / New Jersey / Coastal Flood Statements in 2011

Coastal Flood Statement 31, NWS Philadelphia/Mount Holly

September 1, 2011Burlington County, Camden County, Gloucester County, New Jersey; Delaware County, Philadelphia County, Pennsylvania

NWS Philadelphia/Mount Holly issued this coastal flood statement at Sep 1, 2011, 9:49 AM EDT for Burlington County, Camden County, Gloucester County, New Jersey; Delaware County, Philadelphia County, Pennsylvania. It took effect at Sep 1, 2011, 2:00 PM EDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Sep 1, 2011, 9:49 AM EDT (13:49 UTC)
In effect from
Sep 1, 2011, 2:00 PM EDT
Expired
Sep 1, 2011, 7:00 PM EDT
In force
5 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 13:51 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 1.8 hours before the alert went out and 99 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, Phillips Aaf/Abe, MD at 12:00Z on 2011-09-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Phillips Aaf/Abe, MD at 12:00Z on 2011-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1574 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

352 
WHUS41 KPHI 011349
CFWPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
949 AM EDT THU SEP 1 2011
 
NJZ017>019-PAZ070-071-012200-
/O.NEW.KPHI.CF.S.0031.110901T1800Z-110901T2300Z/
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
949 AM EDT THU SEP 1 2011

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

* COASTAL FLOODING...THE AFTERNOON HIGH TIDE CYCLE WILL COME CLOSE
  TO THE THRESHOLD FOR MINOR TIDAL FLOODING. ISOLATED POCKETS OF
  MINOR TIDAL FLOODING SHOULD OCCUR.

* TIMING...HIGH TIDE OCCURS BETWEEN 2 PM AND 6 PM ON THE TIDAL
  DELAWARE RIVER.
 
* IMPACTS...ANY TIDAL FLOODING SHOULD BE SLIGHTLY LESS THAN WHAT
  OCCURRED ON WEDNESDAY AFTERNOON. THE MOST VULNERABLE ROADWAYS
  SUCH AS THE ADMIRAL WILSON BOULEVARD MIGHT EXPERIENCE TIDAL 
  FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE AROUND BARRICADES. PLEASE TAKE ROADWAYS THAT ARE NOT 
PRONE TO MINOR TIDAL FLOODING. 

$$

TFG
1 follow-up statement
919 
WHUS41 KPHI 012101
CFWPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
501 PM EDT THU SEP 1 2011

NJZ017>019-PAZ070-071-012300-
/O.CON.KPHI.CF.S.0031.000000T0000Z-110901T2300Z/
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
501 PM EDT THU SEP 1 2011

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

* COASTAL FLOODING...THE AFTERNOON HIGH TIDE CYCLE WILL COME 
  CLOSE TO THE THRESHOLD FOR MINOR TIDAL FLOODING. ISOLATED 
  POCKETS OF MINOR TIDAL FLOODING SHOULD OCCUR. 

* TIMING...HIGH TIDE OCCURS BETWEEN AROUND 2 PM AND 6 PM ON THE
  TIDAL DELAWARE RIVER.

* IMPACTS...ANY TIDAL FLOODING SHOULD BE SLIGHTLY LESS THAN WHAT 
  OCCURRED ON WEDNESDAY AFTERNOON. THE MOST VULNERABLE ROADWAYS 
  SUCH AS THE ADMIRAL WILSON BOULEVARD MIGHT EXPERIENCE TIDAL 
  FLOODING. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

DO NOT DRIVE AROUND BARRICADES. PLEASE TAKE ROADWAYS THAT ARE NOT
PRONE TO MINOR TIDAL FLOODING.

$$

TFG

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.