Alert archive / New Jersey / Coastal Flood Statements in 2012

Coastal Flood Statement 3, NWS Philadelphia/Mount Holly

February 20, 2012Atlantic County, Cape May County, New Jersey; Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this coastal flood statement at Feb 20, 2012, 3:06 AM EST for Atlantic County, Cape May County, New Jersey; Sussex County, Delaware. It took effect at Feb 20, 2012, 4:00 AM EST. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Feb 20, 2012, 3:06 AM EST (08:06 UTC)
In effect from
Feb 20, 2012, 4:00 AM EST
Expired
Feb 20, 2012, 9:00 AM EST
In force
5 hr
Issued by
NWS Philadelphia/Mount Holly

Counties Sussex County, DE, Atlantic County, NJ, Cape May County, NJ

The radar

The Dover AFB radar (KDOX), 52 km from the middle of the area, began a volume at 08:07 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, 8.1 hours before the alert went out and 134 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 2012-02-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 7 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°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 2012-02-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
7 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
594 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
312 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.

800 
WHUS41 KPHI 200806
CFWPHI

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
306 AM EST MON FEB 20 2012

DEZ003-004-NJZ022>025-201400-
/O.NEW.KPHI.CF.S.0003.120220T0900Z-120220T1400Z/
INLAND SUSSEX-DELAWARE BEACHES-ATLANTIC-CAPE MAY-
ATLANTIC COASTAL CAPE MAY-COASTAL ATLANTIC-
306 AM EST MON FEB 20 2012

* LOCATION...THE ATLANTIC COASTLINES OF ATLANTIC AND CAPE MAY
  COUNTY IN NEW JERSEY, AS WELL AS SUSSEX COUNTY IN DELAWARE, AND
  ALONG ADJACENT BACK BAYS AND LOWER DELAWARE BAY.

* COASTAL FLOODING...A FEW AREAS OF SPOTTY MINOR TIDAL FLOODING.

* TIMING...AROUND THE TIME OF THE MONDAY MORNING HIGH TIDE WHICH
  OCCURS BETWEEN 6 AND 8 AM.

* IMPACTS...AREAS MOST PRONE TO MINOR TIDAL FLOODING WILL SEE
  MINOR FLOODING.

$$

ROBERTSON

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 20, 12:10 AM ESTGale WarningPHI8 hr

Nearby

Coastal Flood Statements in New Jersey, 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.