Alert archive / New Jersey / Coastal Flood Statements in 2012

Coastal Flood Statement 11, NWS Philadelphia/Mount Holly

May 17, 2012Delaware County, Philadelphia County, Pennsylvania; Burlington County, Camden County, Gloucester County, New Jersey

NWS Philadelphia/Mount Holly issued this coastal flood statement at May 17, 2012, 9:55 PM EDT for Delaware County, Philadelphia County, Pennsylvania; Burlington County, Camden County, Gloucester County, New Jersey. It took effect at May 17, 2012, 10:00 PM EDT. It was in force for 103 min.

The area

The counties it named.

The facts

Issued
May 17, 2012, 9:55 PM EDT (01:55 UTC)
In effect from
May 17, 2012, 10:00 PM EDT
Expired
May 17, 2012, 11:43 PM EDT
In force
103 min
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 01:59 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, 1.9 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 2012-05-18Temperature 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, Brookhaven, NY at 00:00Z on 2012-05-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -9 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2749 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-9 m²/s²
0-3 km storm-relative helicity
55 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.

061 
WHUS41 KPHI 180155
CFWPHI

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
955 PM EDT THU MAY 17 2012

NJZ017>019-PAZ070-071-180700-
/O.NEW.KPHI.CF.S.0011.120518T0200Z-120518T0700Z/
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
955 PM EDT THU MAY 17 2012

...SPOTTY LOW-END MINOR TIDAL FLOODING ALONG THE TIDAL DELAWARE
RIVER TONIGHT...

* LOCATION...FROM NEAR MARCUS HOOK TO NEAR BURLINGTON.

* COASTAL FLOODING...SPOTTY AND LOW END MINOR TIDAL FLOODING.

* TIMING...FROM AROUND 10 PM TO AROUND 230 AM. HIGH TIDE AT
  PHILADELPHIA IS AT 1225 AM.

* IMPACTS...ONLY THE MOST FLOOD-PRONE AREAS WILL SEE MINOR
  FLOODING. 

$$

MPD
1 follow-up statement
322 
WHUS41 KPHI 180343
CFWPHI

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
1143 PM EDT THU MAY 17 2012


NJZ017>019-PAZ070-071-180445-
/O.CAN.KPHI.CF.S.0011.000000T0000Z-120518T0700Z/
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
1143 PM EDT THU MAY 17 2012

...THIS STATEMENT CANCELS THE POSSIBILITY OF SPOTTY LOW END MINOR
FLOODING...

* LOCATION...FROM NEAR MARCUS HOOK TO NEAR BURLINGTON.

TIDAL DEPARTURES WERE DECREASING RAPIDLY THROUGH 1130 PM AND NO
TIDAL FLOODING IS EXPECTED.


$$

DRAG

Nearby

Coastal Flood Statements in New Jersey, 2012Coastal Flood Statements in Pennsylvania, 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.