Alert archive / New Jersey / Coastal Flood Statements in 2009

Coastal Flood Statement 4, NWS Philadelphia/Mount Holly

August 21, 20094 counties in New Jersey; Sussex County, Delaware

NWS Philadelphia/Mount Holly issued this coastal flood statement at Aug 21, 2009, 6:11 AM EDT for 4 counties in New Jersey; Sussex County, Delaware. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Aug 21, 2009, 6:11 AM EDT (10:11 UTC)
Expired
Aug 21, 2009, 3:12 PM EDT
In force
9 hr
Issued by
NWS Philadelphia/Mount Holly

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

The radar

The Philadelphia radar (KDIX), 56 km from the middle of the area, began a volume at 10:15 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, 10.2 hours before the alert went out and 184 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 2009-08-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2663 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, Wallops Is Stn, VA at 00:00Z on 2009-08-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 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
2663 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
900 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
99 m²/s²
Significant tornado parameter
0.0
Supercell composite
4.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WHUS41 KPHI 211011
CFWPHI

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
611 AM EDT FRI AUG 21 2009

...MODERATE RIP CURRENT RISK THIS MORNING AND HIGH RIP CURRENT
RISK THIS AFTERNOON...

.LARGE OCEAN SWELLS FROM HURRICANE BILL WILL IMPACT DELAWARE AND
NEW JERSEY BEACHES TODAY.

DEZ004-NJZ014-024>026-212300-
/O.NEW.KPHI.CF.S.0004.090821T1011Z-090821T2300Z/
DELAWARE BEACHES-EASTERN MONMOUTH-ATLANTIC COASTAL CAPE MAY-
COASTAL ATLANTIC-COASTAL OCEAN-
611 AM EDT FRI AUG 21 2009

LONG PERIOD OCEAN SWELLS, GENERATED BY HURRICANE BILL, ARE
BEGINNING TO PROPAGATE ACROSS THE COASTAL WATERS OF DELAWARE AND
NEW JERSEY. THE SWELLS WILL CONTINUE TO BUILD TONIGHT AND THROUGH
THE WEEKEND. ONCE THE HIGH RIP CURRENT RISK DEVELOPS LATER TODAY,
IT WILL LIKELY CONTINUE INTO SUNDAY.

A MODERATE RISK OF RIP CURRENTS IMPLIES THAT INDIVIDUALS PLANNING
TO ENTER THE SURF SHOULD CHECK WITH LOCAL BEACH PATROLS FIRST. BE
SURE TO SWIM WITHIN SIGHT OF A LIFE GUARD, AND NEVER SWIM ALONE OR
AT NIGHT.

A HIGH RISK OF RIP CURRENTS MEANS DANGEROUS AND POTENTIALLY LIFE
THREATENING CONDITIONS EXIST FOR ALL PEOPLE ENTER THE SURF.
LIFEGUARDS ARE REPORTING DANGEROUS CONDITIONS EXISTING IN THE
SURF.

RIP CURRENTS ARE STRONG, NARROW CHANNELS OF WATER THAT FLOW OUT TO
SEA. IF YOU BECOME CAUGHT IN A RIP CURRENT, STAY CALM AND DO NOT
FIGHT IT. SWIM PARALLEL TO THE SHORE UNTIL YOU BREAK FREE OF THE
CURRENT. THEN SWIM AT AN ANGLE, AWAY FROM THE CURRENT, TOWARD THE
SHORE. 

IF YOU ARE UNABLE TO ESCAPE BY SWIMMING, FLOAT OR TREAD WATER.
WHEN THE CURRENT WEAKENS, SWIM AT AN ANGLE AWAY FROM THE CURRENT
TOWARD THE SHORE. IF AT ANY TIME YOU FEEL YOU WILL NOT BE ABLE TO
REACH THE SHORE, DRAW ATTENTION TO YOURSELF BY CALLING OR WAVING
FOR HELP.

$$

KRUZDLO
1 follow-up statement
000 
WHUS41 KPHI 211912
CFWPHI

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE MOUNT HOLLY NJ
312 PM EDT FRI AUG 21 2009

DEZ004-NJZ014-024>026-221000-
/O.CAN.KPHI.CF.S.0004.000000T0000Z-090821T2300Z/
/O.NEW.KPHI.SU.Y.0001.090822T1000Z-090823T2200Z/
DELAWARE BEACHES-EASTERN MONMOUTH-ATLANTIC COASTAL CAPE MAY-
COASTAL ATLANTIC-COASTAL OCEAN-
312 PM EDT FRI AUG 21 2009

...HIGH SURF ADVISORY IN EFFECT FROM 6 AM SATURDAY TO 6 PM EDT
SUNDAY...

THE NATIONAL WEATHER SERVICE HAS ISSUED A HIGH SURF ADVISORY. IT
IS IN EFFECT FROM 600 AM ON SATURDAY UNTIL 600 PM ON SUNDAY.

LONG PERIOD SWELLS ASSOCIATED WITH HURRICANE BILL HAVE REACHED
THE COASTAL WATERS OF DELAWARE AND NEW JERSEY. THE SWELLS WILL
CONTINUE TO BUILD THROUGH SATURDAY, PEAKING ON SATURDAY NIGHT INTO
SUNDAY. WAVE HEIGHTS UP TO 12 OR 14 FEET ARE ANTICIPATED JUST A
FEW MILES OFF THE COAST. BREAKING WAVES IN THE SURF ZONES SHOULD
RANGE MAINLY FROM 5 TO 7 FEET, WITH SOME 8 FOOT WAVES POSSIBLE.

THERE WILL BE A HIGH RISK OF RIP CURRENTS THROUGH THE WEEKEND. A
HIGH RISK OF RIP CURRENTS MEANS THAT DANGEROUS AND POTENTIALLY
LIFE THREATENING CONDITIONS EXIST. FOLLOW THE RECOMMENDATIONS OF
THE LOCAL BEACH PATROL AND STAY OUT OF THE SURF IF YOU ARE DIRECTED
TO DO SO.

THE ROUGH SURF WILL ALSO CAUSE SOME BEACH EROSION ALONG THE COASTS
OF NEW JERSEY AND DELAWARE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF ADVISORY MEANS THAT HIGH SURF WILL AFFECT BEACHES IN
THE ADVISORY AREA, PRODUCING RIP CURRENTS AND LOCALIZED BEACH
EROSION.

&&

$$

IOVINO

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 21, 2:34 PM EDTSevere Thunderstorm WarningPHISussex63 min
Aug 21, 2:41 PM EDTAreal Flood AdvisoryPHIMorris, Sussex, Warren3 hr
Aug 21, 2:47 PM EDTFlash Flood WatchPHIAtlantic, Burlington, Camden, Cape May, Cumberland, Gloucester and 10 more35 hr
Aug 21, 3:12 PM EDTHigh Surf AdvisoryPHIAtlantic, Cape May, Monmouth, Ocean53 hr
Aug 21, 4:13 PM EDTSevere Thunderstorm WarningPHISalem77 min
Aug 21, 4:16 PM EDTSpecial Marine WarningPHI59 min

Nearby

Coastal Flood Statements in New Jersey, 2009Coastal Flood Statements in Delaware, 2009Every coastal flood statement in 2009

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.