Alert archive / New Jersey / Coastal Flood Statements in 2012

Coastal Flood Statement 24, NWS Philadelphia/Mount Holly

August 1, 20124 counties in New Jersey; New Castle County, Delaware; Delaware County, Philadelphia County, Pennsylvania

NWS Philadelphia/Mount Holly issued this coastal flood statement at Aug 1, 2012, 3:31 PM EDT for 4 counties in New Jersey; New Castle County, Delaware; Delaware County, Philadelphia County, Pennsylvania. It took effect at Aug 1, 2012, 11:00 PM EDT. It was in force for 4 hr.

The area

The counties it named.

The facts

Issued
Aug 1, 2012, 3:31 PM EDT (19:31 UTC)
In effect from
Aug 1, 2012, 11:00 PM EDT
Expired
Aug 2, 2012, 3:00 AM EDT
In force
4 hr
Issued by
NWS Philadelphia/Mount Holly

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

The radar

The Philadelphia radar (KDIX), 69 km from the middle of the area, began a volume at 19:31 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, 7.5 hours before the alert went out and 86 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 2012-08-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 897 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, Phillips Aaf/Abe, MD at 12:00Z on 2012-08-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.1939Sfc1 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
897 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
643 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
-2 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.

496 
WHUS41 KPHI 011931
CFWPHI

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
331 PM EDT WED AUG 1 2012

NJZ012-020400-
/O.EXA.KPHI.CF.Y.0018.120801T2300Z-120802T0400Z/
MIDDLESEX-
331 PM EDT WED AUG 1 2012

...COASTAL FLOOD ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO
MIDNIGHT EDT TONIGHT...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A COASTAL
FLOOD ADVISORY...WHICH IS IN EFFECT FROM 7 PM THIS EVENING TO
MIDNIGHT EDT TONIGHT.

* LOCATION...RARITAN BAY.

* COASTAL FLOODING...LOW END MINOR FLOODING... MAINLY OCCURRING 
  ONE HOUR EITHER SIDE OF THE TIME OF HIGH TIDE.

* TIMING...HIGH TIDE IN RARITAN BAY OCCURS APPROXIMATELY BETWEEN
  730 PM AND 830 PM. 

* IMPACTS...MOST VULNERABLE ROADWAYS AND LOCATIONS SHOULD HAVE 
  MINOR TIDAL FLOODING THIS EVENING.  

* OUTLOOK...SPOTTY TIDAL FLOODING IS POSSIBLE ON THURSDAY 
  EVENING. SPRING HIGH TIDE CYCLE WILL BE LOWERING AS WE MOVE 
  AWAY FROM THE FULL MOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT MINOR TIDAL FLOODING IS
ANTICIPATED. MINOR TIDAL FLOODING OFTEN RESULTS IN SOME ROAD
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 REPAIRS.

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-NJZ013-014-020>027-020400-
/O.CON.KPHI.CF.Y.0018.120801T2300Z-120802T0400Z/
KENT-INLAND SUSSEX-DELAWARE BEACHES-WESTERN MONMOUTH-
EASTERN MONMOUTH-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-
331 PM EDT WED AUG 1 2012

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 7 PM THIS
EVENING TO MIDNIGHT EDT TONIGHT...

* LOCATION...THE NEW JERSEY AND DELAWARE COASTS INCLUDING THE 
  BACK BAYS... RARITAN BAY... AND DELAWARE BAY.

* COASTAL FLOODING...LOW END MINOR FLOODING... MAINLY OCCURRING 
  ONE HOUR EITHER SIDE OF THE TIME OF HIGH TIDE.

* TIMING...HIGH TIDE ON THE NEW JERSEY AND DELAWARE OCEANFRONTS 
  OCCURS APPROXIMATELY BETWEEN 730 PM AND 830 PM AND WILL OCCUR 
  LATER IN THE EVENING IN THE BACK BAYS AND INTO DELAWARE BAY.

* SEAS...2 TO 3 FEET ON THE OCEAN AND 1 TO 2 FEET ON DELAWARE BAY. 

* IMPACTS...MOST VULNERABLE ROADWAYS AND LOCATIONS SHOULD HAVE 
  MINOR TIDAL FLOODING THIS EVENING. IMPACT SHOULD BE SIMILAR TO 
  WHAT OCCURRED ON TUESDAY EVENING.

* OUTLOOK...SPOTTY TIDAL FLOODING IS POSSIBLE ON THURSDAY 
  EVENING. SPRING HIGH TIDE CYCLE WILL BE LOWERING AS WE MOVE 
  AWAY FROM THE FULL MOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT MINOR TIDAL FLOODING IS
ANTICIPATED. MINOR TIDAL FLOODING OFTEN RESULTS IN SOME ROAD
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 REPAIRS.

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-NJZ016>019-PAZ070-071-020400-
/O.NEW.KPHI.CF.S.0024.120802T0300Z-120802T0700Z/
NEW CASTLE-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
DELAWARE-PHILADELPHIA-
331 PM EDT WED AUG 1 2012

...POCKETS OF MINOR TIDAL FLOODING TONIGHT...

* LOCATION...TIDAL SECTIONS OF THE DELAWARE RIVER AND ITS
  TRIBUTARIES IN NORTHERN DELAWARE...SOUTHWEST NEW JERSEY AND
  SOUTHEAST PENNSYLVANIA. 

* COASTAL FLOODING...POCKETS OF MINOR TIDAL FLOODING.

* TIMING...HIGH TIDE WILL WORK ITS WAY UP THE DELAWARE RIVER FROM
  AROUND 1130 MPH NEAR THE MOUTH WITH DELAWARE BAY TO AROUND 2 AM
  EDT ON THURSDAY MORNING IN PHILADELPHIA.
 
* IMPACTS...POSSIBLY SOME ROADWAYS PRONE TO TIDAL FLOODING MIGHT
  BE AFFECTED LIKE THE ADMIRAL WILSON BOULEVARD.

* OUTLOOK...LESS TIDAL FLOODING IF ANY SHOULD OCCUR THURSDAY NIGHT.

$$
1 follow-up statement
574 
WHUS41 KPHI 020406
CFWPHI

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1206 AM EDT THU AUG 2 2012

DEZ002>004-NJZ012>014-020>027-020515-
/O.EXP.KPHI.CF.Y.0018.000000T0000Z-120802T0400Z/
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-
1206 AM EDT THU AUG 2 2012

...COASTAL FLOOD ADVISORY HAS EXPIRED...

HIGH TIDE HAS OCCUR ED AND LEVELS WILL CONTINUE TO FALL THROUGH THE
MORNING HOURS.

$$

DEZ001-NJZ016>019-PAZ070-071-020700-
/O.CON.KPHI.CF.S.0024.000000T0000Z-120802T0700Z/
NEW CASTLE-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
DELAWARE-PHILADELPHIA-
1206 AM EDT THU AUG 2 2012

...POCKETS OF MINOR TIDAL FLOODING TONIGHT...

* LOCATION...TIDAL SECTIONS OF THE DELAWARE RIVER AND ITS 
  TRIBUTARIES IN NORTHERN DELAWARE...SOUTHWEST NEW JERSEY AND 
  SOUTHEAST PENNSYLVANIA.

* COASTAL FLOODING...POCKETS OF MINOR TIDAL FLOODING.

* TIMING...HIGH TIDE WILL WORK ITS WAY UP THE DELAWARE RIVER THROUGH
  2 AM EDT.

* IMPACTS...POSSIBLY SOME ROADWAYS PRONE TO TIDAL FLOODING MIGHT
  BE AFFECTED LIKE THE ADMIRAL WILSON BOULEVARD

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 31, 9:51 PM EDTCoastal Flood StatementPHIBurlington, Camden, Gloucester5 hr
Aug 1, 9:24 AM EDTCoastal Flood AdvisoryPHIAtlantic, Burlington, Cape May, Cumberland, Middlesex, Monmouth and 1 more15 hr
Aug 1, 9:44 AM EDTAreal Flood AdvisoryPHICumberland2 hr
Aug 1, 10:48 AM EDTSpecial Weather StatementPHICumberland57 min
Aug 1, 10:59 AM EDTAreal Flood AdvisoryPHICumberland73 min
Aug 1, 12:09 PM EDTAreal Flood AdvisoryPHIMonmouth, Ocean3 hr
Aug 1, 12:48 PM EDTAreal Flood AdvisoryPHICape May107 min
Aug 1, 1:09 PM EDTSpecial Weather StatementPHICape May66 min
Aug 1, 1:16 PM EDTAreal Flood AdvisoryPHIAtlantic, Burlington, Camden, Ocean3 hr
Aug 1, 1:45 PM EDTSpecial Weather StatementPHISomerset60 min
Aug 1, 2:12 PM EDTAreal Flood AdvisoryPHIMiddlesex, Morris, Somerset3 hr
Aug 1, 2:27 PM EDTSpecial Weather StatementPHIHunterdon, Mercer63 min
Aug 1, 2:39 PM EDTFlash Flood WarningPHIMiddlesex, Somerset3 hr
Aug 1, 2:47 PM EDTAreal Flood AdvisoryPHIHunterdon, Mercer3 hr
Aug 1, 2:57 PM EDTSpecial Weather StatementPHIOcean63 min
Aug 1, 3:12 PM EDTSpecial Weather StatementPHIHunterdon63 min
Aug 1, 3:25 PM EDTAreal Flood AdvisoryPHIHunterdon, Morris, Somerset3 hr
Aug 1, 3:51 PM EDTFlash Flood WarningPHIHunterdon, Morris2 hr
Aug 1, 4:11 PM EDTAreal Flood AdvisoryPHIBurlington, Ocean65 min
Aug 1, 4:41 PM EDTSpecial Weather StatementPHISussex64 min
Aug 1, 5:26 PM EDTAreal Flood AdvisoryPHISussex102 min
Aug 1, 5:41 PM EDTSpecial Weather StatementPHICamden, Gloucester64 min
Aug 1, 5:46 PM EDTSevere Thunderstorm WarningPHICamden, Gloucester31 min
Aug 1, 6:16 PM EDTAreal Flood AdvisoryPHIBurlington, Camden, Gloucester46 min
Aug 1, 1:02 AM EDTSpecial Weather StatementPHINew Castle58 min
Aug 1, 1:18 PM EDTSpecial Weather StatementPHISussex57 min
Aug 1, 1:43 PM EDTAreal Flood AdvisoryPHIKent, New Castle86 min
Aug 1, 1:55 PM EDTAreal Flood AdvisoryPHIKent, Sussex2 hr
Jul 31, 8:11 PM EDTSpecial Weather StatementPHIBerks64 min
Jul 31, 9:12 PM EDTSpecial Weather StatementPHIBerks, Lehigh63 min
Aug 1, 2:03 PM EDTSpecial Weather StatementPHIChester57 min
Aug 1, 3:03 PM EDTSpecial Weather StatementPHIMonroe57 min
Aug 1, 3:35 PM EDTSpecial Weather StatementPHIPhiladelphia55 min
Aug 1, 4:07 PM EDTFlash Flood WarningPHIBucks, Montgomery3 hr
Aug 1, 4:16 PM EDTSpecial Weather StatementPHICarbon, Monroe59 min
Aug 1, 4:51 PM EDTAreal Flood AdvisoryPHIMonroe36 min
Aug 1, 4:53 PM EDTSpecial Weather StatementPHIPhiladelphia67 min
Aug 1, 5:06 PM EDTAreal Flood AdvisoryPHIMontgomery, Philadelphia12 min
Aug 1, 5:09 PM EDTFlash Flood WarningPHIMontgomery, Philadelphia3 hr
Aug 1, 5:22 PM EDTFlash Flood WarningPHIMonroe106 min
Aug 1, 5:34 PM EDTSpecial Weather StatementPHICarbon56 min
Aug 1, 5:43 PM EDTSpecial Weather StatementPHIDelaware, Montgomery62 min
Aug 1, 5:50 PM EDTSpecial Weather StatementPHIMontgomery55 min
Aug 1, 5:53 PM EDTAreal Flood AdvisoryPHICarbon, Monroe100 min
Aug 1, 5:55 PM EDTSevere Thunderstorm WarningPHICarbon, Monroe, Northampton65 min
Aug 1, 6:08 PM EDTFlash Flood WarningPHIChester, Montgomery2 hr
Aug 1, 6:22 PM EDTSpecial Weather StatementPHILehigh53 min
Aug 1, 6:30 PM EDTAreal Flood AdvisoryPHIChester, Delaware64 min
Aug 1, 6:53 PM EDTAreal Flood AdvisoryPHILehigh, Northampton69 min
Aug 1, 6:59 PM EDTSpecial Weather StatementPHINorthampton61 min
Aug 1, 7:32 PM EDTSpecial Weather StatementPHIChester58 min
Aug 1, 7:49 PM EDTAreal Flood AdvisoryPHIChester52 min

Nearby

Coastal Flood Statements in New Jersey, 2012Coastal Flood Statements in Pennsylvania, 2012Coastal Flood Statements in Delaware, 2012Every coastal flood statement in 2012

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.