Alert archive / New Jersey / Coastal Flood Statements in 2011

Coastal Flood Statement 14, NWS Philadelphia/Mount Holly

April 19, 20119 counties in New Jersey; Delaware County, Philadelphia County, Pennsylvania; Kent County, New Castle County, Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this coastal flood statement at Apr 19, 2011, 3:37 PM EDT for 9 counties in New Jersey; Delaware County, Philadelphia County, Pennsylvania; Kent County, New Castle County, Sussex County, Delaware. It took effect at Apr 19, 2011, 9:00 PM EDT. It was in force for 48 min.

The area

The counties it named.

The facts

Issued
Apr 19, 2011, 3:37 PM EDT (19:37 UTC)
In effect from
Apr 19, 2011, 9:00 PM EDT
Expired
Apr 19, 2011, 9:48 PM EDT
In force
48 min
Issued by
NWS Philadelphia/Mount Holly

Counties Kent County, DE, New Castle County, DE, Sussex County, DE, Atlantic County, NJ, Burlington County, NJ, Camden County, NJ, Cape May County, NJ, Cumberland County, NJ, Gloucester County, NJ, Monmouth County, NJ, Ocean County, NJ, Salem County, NJ, Delaware County, PA, Philadelphia County, PA

The radar

The Philadelphia radar (KDIX), 65 km from the middle of the area, began a volume at 19:40 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, 7.6 hours before the alert went out and 94 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 2011-04-19Temperature 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 2011-04-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 square meters per square second.19395878Sfc1 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
2136 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
165 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.

745 
WHUS41 KPHI 191937
CFWPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
337 PM EDT TUE APR 19 2011

DEZ002>004-NJZ013-014-020>027-200500-
/O.NEW.KPHI.CF.S.0014.110420T0100Z-110420T0500Z/
KENT-INLAND SUSSEX-DELAWARE BEACHES-WESTERN MONMOUTH-
EASTERN MONMOUTH-OCEAN-CUMBERLAND-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-
337 PM EDT TUE APR 19 2011

...SPOTTY MINOR TIDAL FLOODING MAY OCCUR AROUND THE TIME OF HIGH
TIDE EARLY TONIGHT...

WITH ASTRONOMICAL TIDES STILL RUNNING HIGH BECAUSE OF THE
RECENT FULL MOON, WATER LEVELS WILL REMAIN QUITE HIGH
THROUGH THE EARLY NIGHTTIME HOURS AND SOME SPOTTY MINOR TIDAL
FLOODING IS POSSIBLE IN THE MOST SUSCEPTIBLE AREAS AROUND THE
TIME OF HIGH TIDE. HIGH TIDE WILL OCCUR BETWEEN 900 PM AND
1100 PM ALONG THE NEW JERSEY AND DELAWARE OCEAN FRONTS AND
UP TO SEVERAL HOURS LATER ON RARITAN BAY, THE LOWER DELAWARE
BAY, AND THE BACK BAYS.

THIS WILL NOT BE A MAJOR FLOOD EVENT, BUT, NEVERTHELESS,
VEHICLES SHOULD NOT BE PARKED IN FLOOD PRONE AREAS.

$$

DEZ001-NJZ016>019-PAZ070-071-201000-
/O.NEW.KPHI.CF.S.0014.110420T0400Z-110420T1000Z/
NEW CASTLE-SALEM-GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-
DELAWARE-PHILADELPHIA-
337 PM EDT TUE APR 19 2011

...SPOTTY MINOR TIDAL FLOODING MAY OCCUR AROUND THE TIME OF HIGH
TIDE TONIGHT...

WITH ASTRONOMICAL TIDES STILL RUNNING HIGH BECAUSE OF THE
RECENT FULL MOON, WATER LEVELS WILL REMAIN QUITE HIGH OVERNIGHT
AND SOME SPOTTY MINOR TIDAL FLOODING IS POSSIBLE IN THE MOST
SUSCEPTIBLE AREAS AROUND THE TIME OF HIGH TIDE. HIGH TIDE WILL
OCCUR BETWEEN MIDNIGHT AND 500 AM ON THE UPPER DELAWARE BAY AND
THE LOWER DELAWARE RIVER.

THIS WILL NOT BE A MAJOR FLOOD EVENT, BUT, NEVERTHELESS, VEHICLES
SHOULD NOT BE PARKED IN FLOOD PRONE AREAS.

$$

RPW
1 follow-up statement
127 
WHUS41 KPHI 200148
CFWPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
948 PM EDT TUE APR 19 2011

DEZ002>004-200500-
/O.CAN.KPHI.CF.S.0014.000000T0000Z-110420T0500Z/
/O.NEW.KPHI.CF.Y.0012.110420T0148Z-110420T0500Z/
KENT-INLAND SUSSEX-DELAWARE BEACHES-
948 PM EDT TUE APR 19 2011

...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 1 AM EDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A COASTAL
FLOOD ADVISORY...WHICH IS IN EFFECT UNTIL 1 AM EDT WEDNESDAY. 

WITH ASTRONOMICAL TIDES STILL RUNNING HIGH BECAUSE OF THE RECENT
FULL MOON... WATER LEVELS WILL REMAIN QUITE HIGH THROUGH THE EARLY
NIGHTTIME HOURS AND MINOR TIDAL FLOODING IS EXPECTED. HIGH TIDE
OCCURS BETWEEN 1100 PM AND 100 AM

THIS WILL NOT BE A MAJOR FLOOD EVENT...BUT NEVERTHELESS...
VEHICLES SHOULD NOT BE PARKED IN FLOOD PRONE AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

&&

$$

DEZ001-NJZ016>018-PAZ070-071-200900-
/O.CAN.KPHI.CF.S.0014.110420T0400Z-110420T1000Z/
/O.NEW.KPHI.CF.Y.0012.110420T0300Z-110420T0900Z/
NEW CASTLE-SALEM-GLOUCESTER-CAMDEN-DELAWARE-PHILADELPHIA-
948 PM EDT TUE APR 19 2011

...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 5 AM EDT WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A COASTAL
FLOOD ADVISORY...WHICH IS IN EFFECT UNTIL 5 AM EDT WEDNESDAY. 

H ASTRONOMICAL TIDES STILL RUNNING HIGH BECAUSE OF THE RECENT
FULL MOON... WATER LEVELS WILL REMAIN QUITE HIGH OVERNIGHT AND
SOME SPOTTY MINOR TIDAL FLOODING IS POSSIBLE IN THE MOST
SUSCEPTIBLE AREAS AROUND THE TIME OF HIGH TIDE. HIGH TIDE WILL
OCCUR BETWEEN MIDNIGHT AND 500 AM ON THE UPPER DELAWARE BAY AND
THE LOWER DELAWARE RIVER.

THIS WILL NOT BE A MAJOR FLOOD EVENT...BUT NEVERTHELESS...
VEHICLES SHOULD NOT BE PARKED IN FLOOD PRONE AREAS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

&&

$$

NJZ013-014-020>027-200300-
/O.CAN.KPHI.CF.S.0014.000000T0000Z-110420T0500Z/
WESTERN MONMOUTH-EASTERN MONMOUTH-OCEAN-CUMBERLAND-ATLANTIC-
CAPE MAY-ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-COASTAL OCEAN-
SOUTHEASTERN BURLINGTON-
948 PM EDT TUE APR 19 2011

HIGH TIDE HAS PASSED IN THESE AREAS...AND SPOTTY MINOR TIDAL
FLOODING OCCURRED.


$$

NJZ019-200300-
/O.CAN.KPHI.CF.S.0014.110420T0400Z-110420T1000Z/
NORTHWESTERN BURLINGTON-
948 PM EDT TUE APR 19 2011

WITH ASTRONOMICAL TIDES STILL RUNNING HIGH BECAUSE OF THE RECENT
FULL MOON... WATER LEVELS WILL REMAIN QUITE HIGH OVERNIGHT AND
SOME SPOTTY MINOR TIDAL FLOODING IS POSSIBLE IN THE MOST
SUSCEPTIBLE AREAS AROUND THE TIME OF HIGH TIDE. HIGH TIDE WILL
OCCUR BETWEEN MIDNIGHT AND 500 AM ON THE UPPER DELAWARE BAY AND
THE LOWER DELAWARE RIVER.

THIS WILL NOT BE A MAJOR FLOOD EVENT...BUT NEVERTHELESS...
VEHICLES SHOULD NOT BE PARKED IN FLOOD PRONE AREAS.

$$

HAYES

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 19, 3:51 AM EDTSmall Craft Advisory for Hazardous SeasPHI7 hr
Apr 19, 10:38 AM EDTSmall Craft AdvisoryPHI55 hr
Apr 19, 10:38 AM EDTSmall Craft Advisory for Hazardous SeasPHI5 hr
Apr 19, 3:16 PM EDTAreal Flood WarningPHIMorris3 days

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.