Alert archive / New Jersey / Coastal Flood Statements in 2011

Coastal Flood Statement 52, NWS Philadelphia/Mount Holly

November 25, 2011Kent County, New Castle County, Delaware; 5 counties in New Jersey; Delaware County, Philadelphia County, Pennsylvania

NWS Philadelphia/Mount Holly issued this coastal flood statement at Nov 25, 2011, 3:25 AM EST for Kent County, New Castle County, Delaware; 5 counties in New Jersey; Delaware County, Philadelphia County, Pennsylvania. It took effect at Nov 25, 2011, 10:00 AM EST. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Nov 25, 2011, 3:25 AM EST (08:25 UTC)
In effect from
Nov 25, 2011, 10:00 AM EST
Expired
Nov 25, 2011, 3:00 PM EST
In force
5 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Kent County, DE, New Castle County, DE, Burlington County, NJ, Camden County, NJ, Cumberland County, NJ, Gloucester County, NJ, Salem County, NJ, Delaware County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 76 km from the middle of the area, began a volume at 08:23 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

Wallops Is Stn, VA (KWAL), launched 00:00Z, 8.4 hours before the alert went out and 193 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, Wallops Is Stn, VA at 00:00Z on 2011-11-25Temperature 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, Wallops Is Stn, VA at 00:00Z on 2011-11-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 130 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
2005 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
130 m²/s²
0-3 km storm-relative helicity
109 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.

311 
WHUS41 KPHI 250825
CFWPHI

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
325 AM EST FRI NOV 25 2011

DEZ003-004-NJZ012>014-020-022>027-251500-
/O.CON.KPHI.CF.Y.0071.111125T1100Z-111125T1500Z/
INLAND SUSSEX-DELAWARE BEACHES-MIDDLESEX-WESTERN MONMOUTH-
EASTERN MONMOUTH-OCEAN-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-
325 AM EST FRI NOV 25 2011

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS
MORNING...

* LOCATION...COASTAL SECTIONS OF NEW JERSEY AND DELAWARE 
  INCLUDING RARITAN BAY...LOWER DELAWARE BAY AND THE BACK BAYS. 

* COASTAL FLOODING...MINOR TIDAL FLOODING IS EXPECTED AROUND THE
  TIME OF HIGH TIDE THIS MORNING.

* TIMING...HIGH TIDE IN RARITAN BAY AND ALONG THE OCEAN FRONT 
  WILL OCCUR FROM 630 AM TO 800 AM. HIGH TIDES IN THE BACK BAYS 
  AND IN LOWER DELAWARE BAY OCCUR LATER THAN THE HIGH TIDE ON 
  THE OCEANFRONT. 

* IMPACTS...LOCALIZED ROADWAY FLOODING WILL OCCUR.

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. TAKE ROADWAYS THAT ARE LESS PRONE TO MINOR 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).

&&

$$

DEZ001-002-NJZ016>019-021-PAZ070-071-252000-
/O.NEW.KPHI.CF.S.0052.111125T1500Z-111125T2000Z/
NEW CASTLE-KENT-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
CUMBERLAND-DELAWARE-PHILADELPHIA-
325 AM EST FRI NOV 25 2011

* LOCATION...UPPER DELAWARE BAY AND THE TIDAL PORTION OF THE
  DELAWARE RIVER.

* COASTAL FLOODING...SPOTTY MINOR TIDAL FLOODING IS POSSIBLE
  AROUND THE TIME OF HIGH TIDE LATER THIS MORNING AND EARLY THIS
  AFTERNOON. 

* TIMING...HIGH TIDE OCCURS AT REEDY POINT DELAWARE AROUND 1030
  AM. HIGH TIDE OCCURS IN PHILADELPHIA AROUND 115 PM.

* IMPACTS...THE MOST VULNERABLE ROADWAYS TO TIDAL FLOODING MIGHT
  BE AFFECTED. DO NOT PARK VEHICLES IN AREAS THAT ARE MOST PRONE TO
  TIDAL FLOODING

$$
2 follow-up statements
730 
WHUS41 KPHI 251518
CFWPHI

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1018 AM EST FRI NOV 25 2011

DEZ003-004-NJZ012>014-020-022>027-251630-
/O.EXP.KPHI.CF.Y.0071.000000T0000Z-111125T1500Z/
INLAND SUSSEX-DELAWARE BEACHES-MIDDLESEX-WESTERN MONMOUTH-
EASTERN MONMOUTH-OCEAN-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-
1018 AM EST FRI NOV 25 2011

...COASTAL FLOOD ADVISORY HAS EXPIRED...

MINOR TIDAL FLOODING...MAINLY ALONG THE NEW JERSEY COAST HAS
ENDED.

$$

DEZ001-002-NJZ016>019-021-PAZ070-071-252000-
/O.CON.KPHI.CF.S.0052.000000T0000Z-111125T2000Z/
NEW CASTLE-KENT-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
CUMBERLAND-DELAWARE-PHILADELPHIA-
1018 AM EST FRI NOV 25 2011

* LOCATION...UPPER DELAWARE BAY AND THE TIDAL PORTION OF THE 
  DELAWARE RIVER. 

* COASTAL FLOODING...SPOTTY MINOR TIDAL FLOODING IS POSSIBLE
  AROUND THE TIME OF HIGH TIDE LATE THIS MORNING AND EARLY THIS
  AFTERNOON. THE PRIMARY RISK REGION IS THE TIDAL PORTION OF THE 
  DELAWARE RIVER.

* TIMING...HIGH TIDE OCCURS AT REEDY POINT DELAWARE AROUND 1030 
  AM. HIGH TIDE OCCURS IN PHILADELPHIA AROUND 115 PM. 

* IMPACTS...THE MOST VULNERABLE ROADWAYS TO TIDAL FLOODING MIGHT 
  BE AFFECTED. DO NOT PARK VEHICLES IN AREAS THAT ARE MOST PRONE 
  TO TIDAL FLOODING 

$$
193 
WHUS41 KPHI 252003
CFWPHI

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
303 PM EST FRI NOV 25 2011

DEZ001-002-NJZ016>019-021-PAZ070-071-252115-
/O.EXP.KPHI.CF.S.0052.000000T0000Z-111125T2000Z/
NEW CASTLE-KENT-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
CUMBERLAND-DELAWARE-PHILADELPHIA-
303 PM EST FRI NOV 25 2011

* LOCATION...UPPER DELAWARE BAY AND THE TIDAL PORTION OF THE 
  DELAWARE RIVER. 

* COASTAL FLOODING...THE RISK OF MINOR TIDAL FLOODING HAS DIMINISHED.
  THIS WILL PROBABLY BE THE LAST STATEMENT FOR THIS SERIES OF HIGH
  TIDE RELATED MINOR EPISODES.


$$


  
DRAG

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 24, 9:19 PM ESTCoastal Flood AdvisoryPHISussex13 hr

Nearby

Coastal Flood Statements in New Jersey, 2011Coastal Flood Statements in Delaware, 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.