Alert archive / New Jersey / Coastal Flood Statements in 2011

Coastal Flood Statement 19, NWS Philadelphia/Mount Holly

May 12, 2011Delaware County, Philadelphia County, Pennsylvania; Queen Anne's County, Talbot County, Maryland; Burlington County, Camden County, Gloucester County, New Jersey

NWS Philadelphia/Mount Holly issued this coastal flood statement at May 12, 2011, 7:21 PM EDT for Delaware County, Philadelphia County, Pennsylvania; Queen Anne's County, Talbot County, Maryland; Burlington County, Camden County, Gloucester County, New Jersey. It took effect at May 12, 2011, 9:00 PM EDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
May 12, 2011, 7:21 PM EDT (23:21 UTC)
In effect from
May 12, 2011, 9:00 PM EDT
Expired
May 13, 2011, 1:42 AM EDT
In force
5 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Queen Anne's County, MD, Talbot County, MD, Burlington County, NJ, Camden County, NJ, Gloucester County, NJ, Delaware County, PA, Philadelphia County, PA

The radar

The Dover AFB radar (KDOX), 85 km from the middle of the area, began a volume at 23:23 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

Phillips Aaf/Abe, MD (KAPG), launched 12:00Z, 11.4 hours before the alert went out and 64 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 2011-05-12Temperature 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 2011-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.1939587897Sfc1 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
778 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
65 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.

685 
WHUS41 KPHI 122321
CFWPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
721 PM EDT THU MAY 12 2011

NJZ017>019-PAZ070-071-130500-
/O.NEW.KPHI.CF.S.0019.110513T0100Z-110513T0500Z/
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
721 PM EDT THU MAY 12 2011

...SPOTTY MINOR TIDAL FLOODING POSSIBLE AROUND THE TIME OF HIGH
TIDE LATE THIS EVENING...

TIDE LEVELS ARE RUNNING HIGH ON THE DELAWARE RIVER EARLY THIS
EVENING. AS A RESULT...SPOTTY MINOR TIDAL FLOODING IS POSSIBLE
AROUND THE TMIE OF HIGH TIDE LATER THIS EVENING. HIGH TIDE OCCURS
IN PHILADELPHIA AT 1010 PM. 

ONLY THOSE LOCATIONS THAT ARE MOST SUSCEPTIBLE TO TIDAL FLOODING
COULD BE AFFECTED LATER THIS EVENING.

$$

HAYES
4 follow-up statements
629 
WHUS41 KPHI 122338 CCA
CFWPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE...CORRECTED
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
738 PM EDT THU MAY 12 2011

NJZ017>019-PAZ070-071-130500-
/O.COR.KPHI.CF.S.0019.110513T0100Z-110513T0500Z/
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
738 PM EDT THU MAY 12 2011

...SPOTTY MINOR TIDAL FLOODING POSSIBLE AROUND THE TIME OF HIGH
TIDE LATE THIS EVENING...

TIDE LEVELS ARE RUNNING HIGH ON THE DELAWARE RIVER EARLY THIS
EVENING. AS A RESULT...SPOTTY MINOR TIDAL FLOODING IS POSSIBLE
AROUND THE TIME OF HIGH TIDE LATER THIS EVENING. HIGH TIDE OCCURS
IN PHILADELPHIA AT 1010 PM.

ONLY THOSE LOCATIONS THAT ARE MOST SUSCEPTIBLE TO TIDAL FLOODING
COULD BE AFFECTED LATER THIS EVENING.

$$

HAYES
047 
WHUS41 KPHI 130040
CFWPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
840 PM EDT THU MAY 12 2011

MDZ015-019-130700-
/O.EXB.KPHI.CF.S.0019.110513T0400Z-110513T0700Z/
QUEEN ANNES-TALBOT-
840 PM EDT THU MAY 12 2011

...SPOTTY MINOR TIDAL FLOODING POSSIBLE AROUND THE TIME OF HIGH
TIDE EARLY FRIDAY MORNING...

TIDE LEVELS CONTINUE TO RUN HIGH ON CHESAPEAKE BAY. AS A RESULT...
SPOTTY MINOR TIDAL FLOODING IS POSSIBLE DURING THE EARLY MORNING
HIGH TIDE CYCLE IN TALBOT AND CAROLINE COUNTIES. HIGH TIDE OCCURS 
IN CAMBRIDGE AT 1244 AM FRIDAY.

ONLY THOSE LOCATIONS THAT ARE MOST SUSCEPTIBLE TO TIDAL FLOODING
MAY BE AFFECTED.

$$

NJZ017>019-PAZ070-071-130500-
/O.CON.KPHI.CF.S.0019.110513T0100Z-110513T0500Z/
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
840 PM EDT THU MAY 12 2011

...SPOTTY MINOR TIDAL FLOODING POSSIBLE AROUND THE TIME OF HIGH
TIDE LATE THIS EVENING...

TIDE LEVELS ARE RUNNING HIGH ON THE DELAWARE RIVER EARLY THIS
EVENING. AS A RESULT...SPOTTY MINOR TIDAL FLOODING IS POSSIBLE
AROUND THE TIME OF HIGH TIDE LATER THIS EVENING. HIGH TIDE OCCURS
IN PHILADELPHIA AT 1010 PM.

ONLY THOSE LOCATIONS THAT ARE MOST SUSCEPTIBLE TO TIDAL FLOODING
COULD BE AFFECTED LATER THIS EVENING.

$$

HAYES
995 
WHUS41 KPHI 130137
CFWPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
937 PM EDT THU MAY 12 2011

NJZ017>019-PAZ070-071-130400-
/O.CAN.KPHI.CF.S.0019.000000T0000Z-110513T0500Z/
/O.NEW.KPHI.CF.Y.0014.110513T0137Z-110513T0400Z/
GLOUCESTER-CAMDEN-NORTHWESTERN BURLINGTON-DELAWARE-PHILADELPHIA-
937 PM EDT THU MAY 12 2011

...COASTAL FLOOD ADVISORY IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

THE NATIONAL WEATHER SERVICE IN MOUNT HOLLY HAS ISSUED A COASTAL
FLOOD ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT. 

TIDE LEVELS ARE RUNNING HIGH ON THE DELAWARE RIVER THIS EVENING.
AS A RESULT...MINOR TIDAL FLOODING IS EXPECTED AROUND THE TIME OF
HIGH TIDE THIS EVENING. HIGH TIDE OCCURS IN PHILADELPHIA AT 1010
PM.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

MDZ015-019-130700-
/O.CON.KPHI.CF.S.0019.110513T0400Z-110513T0700Z/
QUEEN ANNES-TALBOT-
937 PM EDT THU MAY 12 2011

...SPOTTY MINOR TIDAL FLOODING POSSIBLE AROUND THE TIME OF HIGH
TIDE EARLY FRIDAY MORNING...

TIDE LEVELS CONTINUE TO RUN HIGH ON CHESAPEAKE BAY. AS A RESULT...
SPOTTY MINOR TIDAL FLOODING IS POSSIBLE DURING THE EARLY MORNING
HIGH TIDE CYCLE IN TALBOT AND CAROLINE COUNTIES. HIGH TIDE OCCURS
IN CAMBRIDGE AT 1244 AM FRIDAY.

ONLY THOSE LOCATIONS THAT ARE MOST SUSCEPTIBLE TO TIDAL FLOODING
MAY BE AFFECTED.

$$

HAYES
970 
WHUS41 KPHI 130542
CFWPHI

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
142 AM EDT FRI MAY 13 2011


MDZ015-019-130645-
/O.CAN.KPHI.CF.S.0019.000000T0000Z-110513T0700Z/
QUEEN ANNES-TALBOT-
142 AM EDT FRI MAY 13 2011

...WHILE SPOTTY MINOR TIDAL FLOODING WILL NOT OCCUR EARLY THIS
MORNING THERE ARE LIKELY TO BE PERIODS OF MINOR COASTAL FLOODING
THIS WEEKEND AND AGAIN EARLY NEXT WEEK....

ANOTHER STATEMENT MAY BE ISSUED AROUND 330 AM REGARDING UPCOMING 
MINOR INUNDATION FLOOD EPISODES.


$$
DRAG

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 8:40 AM EDTCoastal Flood StatementPHICaroline, Talbot5 hr

Nearby

Coastal Flood Statements in New Jersey, 2011Coastal Flood Statements in Pennsylvania, 2011Coastal Flood Statements in Maryland, 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.